AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

perf/core improvements and fixes:

Browse Source 
User visible:
 
 - Enable sampling loads and stores simultaneously in 'perf mem' (Stephane Eranian)
 
 - 'perf diff' output improvements (Namhyung Kim)
 
 - Fix error reporting for evsel pgfault constructor (Arnaldo Carvalho de Melo)
 
 Infrastructure:
 
 - Move debugfs sterrno like method to tools/lib/ so that it may be used by
   other tools, as 'perf probe' will be soon (Arnaldo Carvalho de Melo)
 
 - Introduce function fro deleting/removing hist_entry to avoid code duplication
   (Arnaldo Carvalho de Melo)
 
 - Support parsing parameterized events (Cody P Schafer)
 
 - Add support for IP address formats in libtraceevent (David Ahern)
 
 - Fix typo in sample-parsing.c 'perf test' entry (Rasmus Villemoes)
 
 - Remove some unused functions from color.c (Rickard Strandqvist)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJUxnhhAAoJEBpxZoYYoA71tmMIAL8vvd8zzF92hMB5vmfQia37
 WjPzdwMZxBy3noQztZdega+VcH+B9kpKI7Aes3knBb+SsBIR7IZHJGlI23cyWe83
 7iDJWNXtEQhBt7y94zTulEdmxeIxiHMItRVspJpfdGlZ6VaVWZKsTKNWFqjvm7mC
 fjcfbMXf0itsKky5spvg/425+rO//6c1jmprWTtHmIt7B5ysO+9UdMmOqFZlKiFM
 YTbwpwTMMHhdlrLYm7+CqyEH4pemEtf10KVathf7rlmfHMJllyHy3AnJh9N0dN8L
 XaokVxe4BYcfKCpyXDlKDH6s1Rf0+6JyRKu+hnDKY9y86RV0HV1L5mgcVInc+Nw=
 =CxtR
 -----END PGP SIGNATURE-----

Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

"
   User visible changes:

   - Enable sampling loads and stores simultaneously in 'perf mem' (Stephane Eranian)

   - 'perf diff' output improvements (Namhyung Kim)

   - Fix error reporting for evsel pgfault constructor (Arnaldo Carvalho de Melo)

   Infrastructure changes:

   - Move debugfs sterrno like method to tools/lib/ so that it may be used by
     other tools, as 'perf probe' will be soon (Arnaldo Carvalho de Melo)

   - Introduce function fro deleting/removing hist_entry to avoid code duplication
     (Arnaldo Carvalho de Melo)

   - Support parsing parameterized events (Cody P Schafer)

   - Add support for IP address formats in libtraceevent (David Ahern)

   - Fix typo in sample-parsing.c 'perf test' entry (Rasmus Villemoes)

   - Remove some unused functions from color.c (Rickard Strandqvist)
"

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-01-28 15:43:15 +01:00
commit 29bf4dbc98
44 changed files with 950 additions and 431 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/ABI/testing/sysfs-bus-event_source-devices-events
View File

@ -52,12 +52,18 @@ Description: Per-pmu performance monitoring events specific to the running syste
event=0x2abc
event=0x423,inv,cmask=0x3
domain=0x1,offset=0x8,starting_index=0xffff
domain=0x1,offset=0x8,core=?
Each of the assignments indicates a value to be assigned to a
particular set of bits (as defined by the format file
corresponding to the <term>) in the perf_event structure passed
to the perf_open syscall.
In the case of the last example, a value replacing "?" would
need to be provided by the user selecting the particular event.
This is referred to as "event parameterization". Event
parameters have the format 'param=?'.
What: /sys/bus/event_source/devices/<pmu>/events/<event>.unit
Date: 2014/02/24
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>

43
tools/lib/api/fs/debugfs.c
View File

@ -1,3 +1,4 @@
#define _GNU_SOURCE
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
@ -98,3 +99,45 @@ char *debugfs_mount(const char *mountpoint)
out:
return debugfs_mountpoint;
}
int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename)
{
char sbuf[128];
switch (err) {
case ENOENT:
if (debugfs_found) {
snprintf(buf, size,
"Error:\tFile %s/%s not found.\n"
"Hint:\tPerhaps this kernel misses some CONFIG_ setting to enable this feature?.\n",
debugfs_mountpoint, filename);
break;
}
snprintf(buf, size, "%s",
"Error:\tUnable to find debugfs\n"
"Hint:\tWas your kernel compiled with debugfs support?\n"
"Hint:\tIs the debugfs filesystem mounted?\n"
"Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'");
break;
case EACCES:
snprintf(buf, size,
"Error:\tNo permissions to read %s/%s\n"
"Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
debugfs_mountpoint, filename, debugfs_mountpoint);
break;
default:
snprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
break;
}
return 0;
}
int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name)
{
char path[PATH_MAX];
snprintf(path, PATH_MAX, "tracing/events/%s/%s", sys, name ?: "*");
return debugfs__strerror_open(err, buf, size, path);
}

3
tools/lib/api/fs/debugfs.h
View File

@ -26,4 +26,7 @@ char *debugfs_mount(const char *mountpoint);
extern char debugfs_mountpoint[];
int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename);
int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name);
#endif /* __API_DEBUGFS_H__ */

328
tools/lib/traceevent/event-parse.c
View File

@ -32,6 +32,7 @@
#include <stdint.h>
#include <limits.h>
#include <netinet/ip6.h>
#include "event-parse.h"
#include "event-utils.h"
@ -4149,6 +4150,324 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
trace_seq_printf(s, fmt, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
}
static void print_ip4_addr(struct trace_seq *s, char i, unsigned char *buf)
{
const char *fmt;
if (i == 'i')
fmt = "%03d.%03d.%03d.%03d";
else
fmt = "%d.%d.%d.%d";
trace_seq_printf(s, fmt, buf[0], buf[1], buf[2], buf[3]);
}
static inline bool ipv6_addr_v4mapped(const struct in6_addr *a)
{
return ((unsigned long)(a->s6_addr32[0] | a->s6_addr32[1]) |
(unsigned long)(a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0UL;
}
static inline bool ipv6_addr_is_isatap(const struct in6_addr *addr)
{
return (addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE);
}
static void print_ip6c_addr(struct trace_seq *s, unsigned char *addr)
{
int i, j, range;
unsigned char zerolength[8];
int longest = 1;
int colonpos = -1;
uint16_t word;
uint8_t hi, lo;
bool needcolon = false;
bool useIPv4;
struct in6_addr in6;
memcpy(&in6, addr, sizeof(struct in6_addr));
useIPv4 = ipv6_addr_v4mapped(&in6) || ipv6_addr_is_isatap(&in6);
memset(zerolength, 0, sizeof(zerolength));
if (useIPv4)
range = 6;
else
range = 8;
/* find position of longest 0 run */
for (i = 0; i < range; i++) {
for (j = i; j < range; j++) {
if (in6.s6_addr16[j] != 0)
break;
zerolength[i]++;
}
}
for (i = 0; i < range; i++) {
if (zerolength[i] > longest) {
longest = zerolength[i];
colonpos = i;
}
}
if (longest == 1) /* don't compress a single 0 */
colonpos = -1;
/* emit address */
for (i = 0; i < range; i++) {
if (i == colonpos) {
if (needcolon || i == 0)
trace_seq_printf(s, ":");
trace_seq_printf(s, ":");
needcolon = false;
i += longest - 1;
continue;
}
if (needcolon) {
trace_seq_printf(s, ":");
needcolon = false;
}
/* hex u16 without leading 0s */
word = ntohs(in6.s6_addr16[i]);
hi = word >> 8;
lo = word & 0xff;
if (hi)
trace_seq_printf(s, "%x%02x", hi, lo);
else
trace_seq_printf(s, "%x", lo);
needcolon = true;
}
if (useIPv4) {
if (needcolon)
trace_seq_printf(s, ":");
print_ip4_addr(s, 'I', &in6.s6_addr[12]);
}
return;
}
static void print_ip6_addr(struct trace_seq *s, char i, unsigned char *buf)
{
int j;
for (j = 0; j < 16; j += 2) {
trace_seq_printf(s, "%02x%02x", buf[j], buf[j+1]);
if (i == 'I' && j < 14)
trace_seq_printf(s, ":");
}
}
/*
* %pi4 print an IPv4 address with leading zeros
* %pI4 print an IPv4 address without leading zeros
* %pi6 print an IPv6 address without colons
* %pI6 print an IPv6 address with colons
* %pI6c print an IPv6 address in compressed form with colons
* %pISpc print an IP address based on sockaddr; p adds port.
*/
static int print_ipv4_arg(struct trace_seq *s, const char *ptr, char i,
void *data, int size, struct event_format *event,
struct print_arg *arg)
{
unsigned char *buf;
if (arg->type == PRINT_FUNC) {
process_defined_func(s, data, size, event, arg);
return 0;
}
if (arg->type != PRINT_FIELD) {
trace_seq_printf(s, "ARG TYPE NOT FIELD BUT %d", arg->type);
return 0;
}
if (!arg->field.field) {
arg->field.field =
pevent_find_any_field(event, arg->field.name);
if (!arg->field.field) {
do_warning("%s: field %s not found",
__func__, arg->field.name);
return 0;
}
}
buf = data + arg->field.field->offset;
if (arg->field.field->size != 4) {
trace_seq_printf(s, "INVALIDIPv4");
return 0;
}
print_ip4_addr(s, i, buf);
return 0;
}
static int print_ipv6_arg(struct trace_seq *s, const char *ptr, char i,
void *data, int size, struct event_format *event,
struct print_arg *arg)
{
char have_c = 0;
unsigned char *buf;
int rc = 0;
/* pI6c */
if (i == 'I' && *ptr == 'c') {
have_c = 1;
ptr++;
rc++;
}
if (arg->type == PRINT_FUNC) {
process_defined_func(s, data, size, event, arg);
return rc;
}
if (arg->type != PRINT_FIELD) {
trace_seq_printf(s, "ARG TYPE NOT FIELD BUT %d", arg->type);
return rc;
}
if (!arg->field.field) {
arg->field.field =
pevent_find_any_field(event, arg->field.name);
if (!arg->field.field) {
do_warning("%s: field %s not found",
__func__, arg->field.name);
return rc;
}
}
buf = data + arg->field.field->offset;
if (arg->field.field->size != 16) {
trace_seq_printf(s, "INVALIDIPv6");
return rc;
}
if (have_c)
print_ip6c_addr(s, buf);
else
print_ip6_addr(s, i, buf);
return rc;
}
static int print_ipsa_arg(struct trace_seq *s, const char *ptr, char i,
void *data, int size, struct event_format *event,
struct print_arg *arg)
{
char have_c = 0, have_p = 0;
unsigned char *buf;
struct sockaddr_storage *sa;
int rc = 0;
/* pISpc */
if (i == 'I') {
if (*ptr == 'p') {
have_p = 1;
ptr++;
rc++;
}
if (*ptr == 'c') {
have_c = 1;
ptr++;
rc++;
}
}
if (arg->type == PRINT_FUNC) {
process_defined_func(s, data, size, event, arg);
return rc;
}
if (arg->type != PRINT_FIELD) {
trace_seq_printf(s, "ARG TYPE NOT FIELD BUT %d", arg->type);
return rc;
}
if (!arg->field.field) {
arg->field.field =
pevent_find_any_field(event, arg->field.name);
if (!arg->field.field) {
do_warning("%s: field %s not found",
__func__, arg->field.name);
return rc;
}
}
sa = (struct sockaddr_storage *) (data + arg->field.field->offset);
if (sa->ss_family == AF_INET) {
struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
if (arg->field.field->size < sizeof(struct sockaddr_in)) {
trace_seq_printf(s, "INVALIDIPv4");
return rc;
}
print_ip4_addr(s, i, (unsigned char *) &sa4->sin_addr);
if (have_p)
trace_seq_printf(s, ":%d", ntohs(sa4->sin_port));
} else if (sa->ss_family == AF_INET6) {
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
if (arg->field.field->size < sizeof(struct sockaddr_in6)) {
trace_seq_printf(s, "INVALIDIPv6");
return rc;
}
if (have_p)
trace_seq_printf(s, "[");
buf = (unsigned char *) &sa6->sin6_addr;
if (have_c)
print_ip6c_addr(s, buf);
else
print_ip6_addr(s, i, buf);
if (have_p)
trace_seq_printf(s, "]:%d", ntohs(sa6->sin6_port));
}
return rc;
}
static int print_ip_arg(struct trace_seq *s, const char *ptr,
void *data, int size, struct event_format *event,
struct print_arg *arg)
{
char i = *ptr; /* 'i' or 'I' */
char ver;
int rc = 0;
ptr++;
rc++;
ver = *ptr;
ptr++;
rc++;
switch (ver) {
case '4':
rc += print_ipv4_arg(s, ptr, i, data, size, event, arg);
break;
case '6':
rc += print_ipv6_arg(s, ptr, i, data, size, event, arg);
break;
case 'S':
rc += print_ipsa_arg(s, ptr, i, data, size, event, arg);
break;
default:
return 0;
}
return rc;
}
static int is_printable_array(char *p, unsigned int len)
{
unsigned int i;
@ -4337,6 +4656,15 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
ptr++;
arg = arg->next;
break;
} else if (*(ptr+1) == 'I' || *(ptr+1) == 'i') {
int n;
n = print_ip_arg(s, ptr+1, data, size, event, arg);
if (n > 0) {
ptr += n;
arg = arg->next;
break;
}
}
/* fall through */

13
tools/perf/Documentation/perf-list.txt
View File

@ -89,6 +89,19 @@ raw encoding of 0x1A8 can be used:
You should refer to the processor specific documentation for getting these
details. Some of them are referenced in the SEE ALSO section below.
PARAMETERIZED EVENTS
--------------------
Some pmu events listed by 'perf-list' will be displayed with '?' in them. For
example:
hv_gpci/dtbp_ptitc,phys_processor_idx=?/
This means that when provided as an event, a value for '?' must
also be supplied. For example:
perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ...
OPTIONS
-------

9
tools/perf/Documentation/perf-mem.txt
View File

@ -12,11 +12,12 @@ SYNOPSIS
DESCRIPTION
-----------
"perf mem -t <TYPE> record" runs a command and gathers memory operation data
"perf mem record" runs a command and gathers memory operation data
from it, into perf.data. Perf record options are accepted and are passed through.
"perf mem -t <TYPE> report" displays the result. It invokes perf report with the
right set of options to display a memory access profile.
"perf mem report" displays the result. It invokes perf report with the
right set of options to display a memory access profile. By default, loads
and stores are sampled. Use the -t option to limit to loads or stores.
Note that on Intel systems the memory latency reported is the use-latency,
not the pure load (or store latency). Use latency includes any pipeline
@ -29,7 +30,7 @@ OPTIONS
-t::
--type=::
Select the memory operation type: load or store (default: load)
Select the memory operation type: load or store (default: load,store)
-D::
--dump-raw-samples=::

12
tools/perf/Documentation/perf-record.txt
View File

@ -33,6 +33,18 @@ OPTIONS
- a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
hexadecimal event descriptor.
- a symbolically formed PMU event like 'pmu/param1=0x3,param2/' where
'param1', 'param2', etc are defined as formats for the PMU in
/sys/bus/event_sources/devices/<pmu>/format/*.
- a symbolically formed event like 'pmu/config=M,config1=N,config3=K/'
where M, N, K are numbers (in decimal, hex, octal format). Acceptable
values for each of 'config', 'config1' and 'config2' are defined by
corresponding entries in /sys/bus/event_sources/devices/<pmu>/format/*
param1 and param2 are defined as formats for the PMU in:
/sys/bus/event_sources/devices/<pmu>/format/*
- a hardware breakpoint event in the form of '\mem:addr[:access]'
where addr is the address in memory you want to break in.
Access is the memory access type (read, write, execute) it can

18
tools/perf/Documentation/perf-stat.txt
View File

@ -25,11 +25,23 @@ OPTIONS
-e::
--event=::
Select the PMU event. Selection can be a symbolic event name
(use 'perf list' to list all events) or a raw PMU
event (eventsel+umask) in the form of rNNN where NNN is a
Select the PMU event. Selection can be:
- a symbolic event name (use 'perf list' to list all events)
- a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
hexadecimal event descriptor.
- a symbolically formed event like 'pmu/param1=0x3,param2/' where
param1 and param2 are defined as formats for the PMU in
/sys/bus/event_sources/devices/<pmu>/format/*
- a symbolically formed event like 'pmu/config=M,config1=N,config2=K/'
where M, N, K are numbers (in decimal, hex, octal format).
Acceptable values for each of 'config', 'config1' and 'config2'
parameters are defined by corresponding entries in
/sys/bus/event_sources/devices/<pmu>/format/*
-i::
--no-inherit::
child tasks do not inherit counters

214
tools/perf/builtin-diff.c
View File

@ -390,6 +390,15 @@ static void perf_evlist__collapse_resort(struct perf_evlist *evlist)
}
}
static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt)
{
struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt);
void *ptr = dfmt - dfmt->idx;
struct data__file *d = container_of(ptr, struct data__file, fmt);
return d;
}
static struct hist_entry*
get_pair_data(struct hist_entry *he, struct data__file *d)
{
@ -407,8 +416,7 @@ get_pair_data(struct hist_entry *he, struct data__file *d)
static struct hist_entry*
get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt)
{
void *ptr = dfmt - dfmt->idx;
struct data__file *d = container_of(ptr, struct data__file, fmt);
struct data__file *d = fmt_to_data_file(&dfmt->fmt);
return get_pair_data(he, d);
}
@ -430,7 +438,7 @@ static void hists__baseline_only(struct hists *hists)
next = rb_next(&he->rb_node_in);
if (!hist_entry__next_pair(he)) {
rb_erase(&he->rb_node_in, root);
hist_entry__free(he);
hist_entry__delete(he);
}
}
}
@ -448,11 +456,14 @@ static void hists__precompute(struct hists *hists)
next = rb_first(root);
while (next != NULL) {
struct hist_entry *he, *pair;
struct data__file *d;
int i;
he = rb_entry(next, struct hist_entry, rb_node_in);
next = rb_next(&he->rb_node_in);
pair = get_pair_data(he, &data__files[sort_compute]);
data__for_each_file_new(i, d) {
pair = get_pair_data(he, d);
if (!pair)
continue;
@ -471,6 +482,7 @@ static void hists__precompute(struct hists *hists)
}
}
}
}
static int64_t cmp_doubles(double l, double r)
{
@ -517,7 +529,7 @@ __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
static int64_t
hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
int c)
int c, int sort_idx)
{
bool pairs_left = hist_entry__has_pairs(left);
bool pairs_right = hist_entry__has_pairs(right);
@ -529,8 +541,8 @@ hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
if (!pairs_left || !pairs_right)
return pairs_left ? -1 : 1;
p_left = get_pair_data(left, &data__files[sort_compute]);
p_right = get_pair_data(right, &data__files[sort_compute]);
p_left = get_pair_data(left, &data__files[sort_idx]);
p_right = get_pair_data(right, &data__files[sort_idx]);
if (!p_left && !p_right)
return 0;
@ -546,90 +558,102 @@ hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
}
static int64_t
hist_entry__cmp_nop(struct hist_entry *left __maybe_unused,
hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right,
int c, int sort_idx)
{
struct hist_entry *p_right, *p_left;
p_left = get_pair_data(left, &data__files[sort_idx]);
p_right = get_pair_data(right, &data__files[sort_idx]);
if (!p_left && !p_right)
return 0;
if (!p_left || !p_right)
return p_left ? -1 : 1;
if (c != COMPUTE_DELTA) {
/*
* The delta can be computed without the baseline, but
* others are not. Put those entries which have no
* values below.
*/
if (left->dummy && right->dummy)
return 0;
if (left->dummy || right->dummy)
return left->dummy ? 1 : -1;
}
return __hist_entry__cmp_compute(p_left, p_right, c);
}
static int64_t
hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *left __maybe_unused,
struct hist_entry *right __maybe_unused)
{
return 0;
}
static int64_t
hist_entry__cmp_baseline(struct hist_entry *left, struct hist_entry *right)
hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *left, struct hist_entry *right)
{
if (sort_compute)
return 0;
if (left->stat.period == right->stat.period)
return 0;
return left->stat.period > right->stat.period ? 1 : -1;
}
static int64_t
hist_entry__cmp_delta(struct hist_entry *left, struct hist_entry *right)
hist_entry__cmp_delta(struct perf_hpp_fmt *fmt,
struct hist_entry *left, struct hist_entry *right)
{
return hist_entry__cmp_compute(right, left, COMPUTE_DELTA);
struct data__file *d = fmt_to_data_file(fmt);
return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx);
}
static int64_t
hist_entry__cmp_ratio(struct hist_entry *left, struct hist_entry *right)
hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt,
struct hist_entry *left, struct hist_entry *right)
{
return hist_entry__cmp_compute(right, left, COMPUTE_RATIO);
struct data__file *d = fmt_to_data_file(fmt);
return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx);
}
static int64_t
hist_entry__cmp_wdiff(struct hist_entry *left, struct hist_entry *right)
hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt,
struct hist_entry *left, struct hist_entry *right)
{
return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF);
struct data__file *d = fmt_to_data_file(fmt);
return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx);
}
static void insert_hist_entry_by_compute(struct rb_root *root,
struct hist_entry *he,
int c)
static int64_t
hist_entry__cmp_delta_idx(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *left, struct hist_entry *right)
{
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
struct hist_entry *iter;
while (*p != NULL) {
parent = *p;
iter = rb_entry(parent, struct hist_entry, rb_node);
if (hist_entry__cmp_compute(he, iter, c) < 0)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA,
sort_compute);
}
rb_link_node(&he->rb_node, parent, p);
rb_insert_color(&he->rb_node, root);
}
static void hists__compute_resort(struct hists *hists)
static int64_t
hist_entry__cmp_ratio_idx(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *left, struct hist_entry *right)
{
struct rb_root *root;
struct rb_node *next;
if (sort__need_collapse)
root = &hists->entries_collapsed;
else
root = hists->entries_in;
hists->entries = RB_ROOT;
next = rb_first(root);
hists__reset_stats(hists);
hists__reset_col_len(hists);
while (next != NULL) {
struct hist_entry *he;
he = rb_entry(next, struct hist_entry, rb_node_in);
next = rb_next(&he->rb_node_in);
insert_hist_entry_by_compute(&hists->entries, he, compute);
hists__inc_stats(hists, he);
if (!he->filtered)
hists__calc_col_len(hists, he);
return hist_entry__cmp_compute_idx(right, left, COMPUTE_RATIO,
sort_compute);
}
static int64_t
hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *left, struct hist_entry *right)
{
return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF,
sort_compute);
}
static void hists__process(struct hists *hists)
@ -637,12 +661,8 @@ static void hists__process(struct hists *hists)
if (show_baseline_only)
hists__baseline_only(hists);
if (sort_compute) {
hists__precompute(hists);
hists__compute_resort(hists);
} else {
hists__output_resort(hists, NULL);
}
hists__fprintf(hists, true, 0, 0, 0, stdout);
}
@ -841,7 +861,7 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
char pfmt[20] = " ";
if (!pair)
goto dummy_print;
goto no_print;
switch (comparison_method) {
case COMPUTE_DELTA:
@ -850,8 +870,6 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
else
diff = compute_delta(he, pair);
if (fabs(diff) < 0.01)
goto dummy_print;
scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1);
return percent_color_snprintf(hpp->buf, hpp->size,
pfmt, diff);
@ -882,6 +900,9 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
BUG_ON(1);
}
dummy_print:
return scnprintf(hpp->buf, hpp->size, "%*s",
dfmt->header_width, "N/A");
no_print:
return scnprintf(hpp->buf, hpp->size, "%*s",
dfmt->header_width, pfmt);
}
@ -932,14 +953,15 @@ hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,
else
diff = compute_delta(he, pair);
if (fabs(diff) >= 0.01)
scnprintf(buf, size, "%+4.2F%%", diff);
break;
case PERF_HPP_DIFF__RATIO:
/* No point for ratio number if we are dummy.. */
if (he->dummy)
if (he->dummy) {
scnprintf(buf, size, "N/A");
break;
}
if (pair->diff.computed)
ratio = pair->diff.period_ratio;
@ -952,8 +974,10 @@ hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,
case PERF_HPP_DIFF__WEIGHTED_DIFF:
/* No point for wdiff number if we are dummy.. */
if (he->dummy)
if (he->dummy) {
scnprintf(buf, size, "N/A");
break;
}
if (pair->diff.computed)
wdiff = pair->diff.wdiff;
@ -1105,9 +1129,10 @@ static void data__hpp_register(struct data__file *d, int idx)
perf_hpp__register_sort_field(fmt);
}
static void ui_init(void)
static int ui_init(void)
{
struct data__file *d;
struct perf_hpp_fmt *fmt;
int i;
data__for_each_file(i, d) {
@ -1137,6 +1162,46 @@ static void ui_init(void)
data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD :
PERF_HPP_DIFF__PERIOD_BASELINE);
}
if (!sort_compute)
return 0;
/*
* Prepend an fmt to sort on columns at 'sort_compute' first.
* This fmt is added only to the sort list but not to the
* output fields list.
*
* Note that this column (data) can be compared twice - one
* for this 'sort_compute' fmt and another for the normal
* diff_hpp_fmt. But it shouldn't a problem as most entries
* will be sorted out by first try or baseline and comparing
* is not a costly operation.
*/
fmt = zalloc(sizeof(*fmt));
if (fmt == NULL) {
pr_err("Memory allocation failed\n");
return -1;
}
fmt->cmp = hist_entry__cmp_nop;
fmt->collapse = hist_entry__cmp_nop;
switch (compute) {
case COMPUTE_DELTA:
fmt->sort = hist_entry__cmp_delta_idx;
break;
case COMPUTE_RATIO:
fmt->sort = hist_entry__cmp_ratio_idx;
break;
case COMPUTE_WEIGHTED_DIFF:
fmt->sort = hist_entry__cmp_wdiff_idx;
break;
default:
BUG_ON(1);
}
list_add(&fmt->sort_list, &perf_hpp__sort_list);
return 0;
}
static int data_init(int argc, const char **argv)
@ -1202,7 +1267,8 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
if (data_init(argc, argv) < 0)
return -1;
ui_init();
if (ui_init() < 0)
return -1;
sort__mode = SORT_MODE__DIFF;

131
tools/perf/builtin-mem.c
View File

@ -7,44 +7,47 @@
#include "util/session.h"
#include "util/data.h"
#define MEM_OPERATION_LOAD "load"
#define MEM_OPERATION_STORE "store"
static const char *mem_operation = MEM_OPERATION_LOAD;
#define MEM_OPERATION_LOAD 0x1
#define MEM_OPERATION_STORE 0x2
struct perf_mem {
struct perf_tool tool;
char const *input_name;
bool hide_unresolved;
bool dump_raw;
int operation;
const char *cpu_list;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};
static int __cmd_record(int argc, const char **argv)
static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
{
int rec_argc, i = 0, j;
const char **rec_argv;
char event[64];
int ret;
rec_argc = argc + 4;
rec_argc = argc + 7; /* max number of arguments */
rec_argv = calloc(rec_argc + 1, sizeof(char *));
if (!rec_argv)
return -1;
rec_argv[i++] = strdup("record");
if (!strcmp(mem_operation, MEM_OPERATION_LOAD))
rec_argv[i++] = strdup("-W");
rec_argv[i++] = strdup("-d");
rec_argv[i++] = strdup("-e");
rec_argv[i++] = "record";
if (strcmp(mem_operation, MEM_OPERATION_LOAD))
sprintf(event, "cpu/mem-stores/pp");
else
sprintf(event, "cpu/mem-loads/pp");
if (mem->operation & MEM_OPERATION_LOAD)
rec_argv[i++] = "-W";
rec_argv[i++] = "-d";
if (mem->operation & MEM_OPERATION_LOAD) {
rec_argv[i++] = "-e";
rec_argv[i++] = "cpu/mem-loads/pp";
}
if (mem->operation & MEM_OPERATION_STORE) {
rec_argv[i++] = "-e";
rec_argv[i++] = "cpu/mem-stores/pp";
}
rec_argv[i++] = strdup(event);
for (j = 1; j < argc; j++, i++)
rec_argv[i] = argv[j];
@ -162,17 +165,17 @@ static int report_events(int argc, const char **argv, struct perf_mem *mem)
if (!rep_argv)
return -1;
rep_argv[i++] = strdup("report");
rep_argv[i++] = strdup("--mem-mode");
rep_argv[i++] = strdup("-n"); /* display number of samples */
rep_argv[i++] = "report";
rep_argv[i++] = "--mem-mode";
rep_argv[i++] = "-n"; /* display number of samples */
/*
* there is no weight (cost) associated with stores, so don't print
* the column
*/
if (strcmp(mem_operation, MEM_OPERATION_LOAD))
rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr,"
"dso_daddr,tlb,locked");
if (!(mem->operation & MEM_OPERATION_LOAD))
rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
"dso_daddr,tlb,locked";
for (j = 1; j < argc; j++, i++)
rep_argv[i] = argv[j];
@ -182,6 +185,75 @@ static int report_events(int argc, const char **argv, struct perf_mem *mem)
return ret;
}
struct mem_mode {
const char *name;
int mode;
};
#define MEM_OPT(n, m) \
{ .name = n, .mode = (m) }
#define MEM_END { .name = NULL }
static const struct mem_mode mem_modes[]={
MEM_OPT("load", MEM_OPERATION_LOAD),
MEM_OPT("store", MEM_OPERATION_STORE),
MEM_END
};
static int
parse_mem_ops(const struct option *opt, const char *str, int unset)
{
int *mode = (int *)opt->value;
const struct mem_mode *m;
char *s, *os = NULL, *p;
int ret = -1;
if (unset)
return 0;
/* str may be NULL in case no arg is passed to -t */
if (str) {
/* because str is read-only */
s = os = strdup(str);
if (!s)
return -1;
/* reset mode */
*mode = 0;
for (;;) {
p = strchr(s, ',');
if (p)
*p = '\0';
for (m = mem_modes; m->name; m++) {
if (!strcasecmp(s, m->name))
break;
}
if (!m->name) {
fprintf(stderr, "unknown sampling op %s,"
" check man page\n", s);
goto error;
}
*mode |= m->mode;
if (!p)
break;
s = p + 1;
}
}
ret = 0;
if (*mode == 0)
*mode = MEM_OPERATION_LOAD;
error:
free(os);
return ret;
}
int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
{
struct stat st;
@ -197,10 +269,15 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
.ordered_events = true,
},
.input_name = "perf.data",
/*
* default to both load an store sampling
*/
.operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
};
const struct option mem_options[] = {
OPT_STRING('t', "type", &mem_operation,
"type", "memory operations(load/store)"),
OPT_CALLBACK('t', "type", &mem.operation,
"type", "memory operations(load,store) Default load,store",
parse_mem_ops),
OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
"dump raw samples in ASCII"),
OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
@ -225,7 +302,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation))
if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
usage_with_options(mem_usage, mem_options);
if (!mem.input_name || !strlen(mem.input_name)) {
@ -236,7 +313,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
}
if (!strncmp(argv[0], "rec", 3))
return __cmd_record(argc, argv);
return __cmd_record(argc, argv, &mem);
else if (!strncmp(argv[0], "rep", 3))
return report_events(argc, argv, &mem);
else

16
tools/perf/builtin-report.c
View File

@ -86,17 +86,6 @@ static int report__config(const char *var, const char *value, void *cb)
return perf_default_config(var, value, cb);
}
static void report__inc_stats(struct report *rep, struct hist_entry *he)
{
/*
* The @he is either of a newly created one or an existing one
* merging current sample. We only want to count a new one so
* checking ->nr_events being 1.
*/
if (he->stat.nr_events == 1)
rep->nr_entries++;
}
static int hist_iter__report_callback(struct hist_entry_iter *iter,
struct addr_location *al, bool single,
void *arg)
@ -108,8 +97,6 @@ static int hist_iter__report_callback(struct hist_entry_iter *iter,
struct mem_info *mi;
struct branch_info *bi;
report__inc_stats(rep, he);
if (!ui__has_annotation())
return 0;
@ -499,6 +486,9 @@ static int __cmd_report(struct report *rep)
report__warn_kptr_restrict(rep);
evlist__for_each(session->evlist, pos)
rep->nr_entries += evsel__hists(pos)->nr_entries;
if (use_browser == 0) {
if (verbose > 3)
perf_session__fprintf(session, stdout);

22
tools/perf/builtin-trace.c
View File

@ -2056,23 +2056,24 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
if (trace->trace_syscalls &&
perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
trace__sys_exit))
goto out_error_tp;
goto out_error_raw_syscalls;
if (trace->trace_syscalls)
perf_evlist__add_vfs_getname(evlist);
if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ))
goto out_error_tp;
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
goto out_error_mem;
}
if ((trace->trace_pgfaults & TRACE_PFMIN) &&
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
goto out_error_tp;
goto out_error_mem;
if (trace->sched &&
perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
trace__sched_stat_runtime))
goto out_error_tp;
goto out_error_sched_stat_runtime;
err = perf_evlist__create_maps(evlist, &trace->opts.target);
if (err < 0) {
@ -2202,8 +2203,12 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
{
char errbuf[BUFSIZ];
out_error_tp:
perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf));
out_error_sched_stat_runtime:
debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
goto out_error;
out_error_raw_syscalls:
debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
goto out_error;
out_error_mmap:
@ -2217,6 +2222,9 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
fprintf(trace->output, "%s\n", errbuf);
goto out_delete_evlist;
}
out_error_mem:
fprintf(trace->output, "Not enough memory to run!\n");
goto out_delete_evlist;
}
static int trace__replay(struct trace *trace)

1
tools/perf/tests/attr.py
View File

@ -105,7 +105,6 @@ class Event(dict):
if not self.compare_data(self[t], other[t]):
log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))
# Test file description needs to have following sections:
# [config]
# - just single instance in file

2
tools/perf/tests/hists_cumulate.c
View File

@ -140,7 +140,7 @@ static void del_hist_entries(struct hists *hists)
he = rb_entry(node, struct hist_entry, rb_node);
rb_erase(node, root_out);
rb_erase(&he->rb_node_in, root_in);
hist_entry__free(he);
hist_entry__delete(he);
}
}

2
tools/perf/tests/hists_output.c
View File

@ -106,7 +106,7 @@ static void del_hist_entries(struct hists *hists)
he = rb_entry(node, struct hist_entry, rb_node);
rb_erase(node, root_out);
rb_erase(&he->rb_node_in, root_in);
hist_entry__free(he);
hist_entry__delete(he);
}
}

1
tools/perf/tests/make
View File

@ -223,7 +223,6 @@ tarpkg:
echo "- $@: $$cmd" && echo $$cmd > $@ && \
( eval $$cmd ) >> $@ 2>&1
all: $(run) $(run_O) tarpkg
@echo OK

2
tools/perf/tests/sample-parsing.c
View File

@ -110,7 +110,7 @@ static bool samples_same(const struct perf_sample *s1,
if (type & PERF_SAMPLE_STACK_USER) {
COMP(user_stack.size);
if (memcmp(s1->user_stack.data, s1->user_stack.data,
if (memcmp(s1->user_stack.data, s2->user_stack.data,
s1->user_stack.size)) {
pr_debug("Samples differ at 'user_stack'\n");
return false;

1
tools/perf/ui/browsers/annotate.c
View File

@ -867,7 +867,6 @@ static void annotate_browser__mark_jump_targets(struct annotate_browser *browser
++browser->nr_jumps;
}
}
static inline int width_jumps(int n)

12
tools/perf/ui/hist.c
View File

@ -285,7 +285,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *fmt, \
}
#define __HPP_SORT_FN(_type, _field) \
static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b) \
static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
struct hist_entry *a, struct hist_entry *b) \
{ \
return __hpp__sort(a, b, he_get_##_field); \
}
@ -312,7 +313,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *fmt, \
}
#define __HPP_SORT_ACC_FN(_type, _field) \
static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b) \
static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
struct hist_entry *a, struct hist_entry *b) \
{ \
return __hpp__sort_acc(a, b, he_get_acc_##_field); \
}
@ -331,7 +333,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *fmt, \
}
#define __HPP_SORT_RAW_FN(_type, _field) \
static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b) \
static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
struct hist_entry *a, struct hist_entry *b) \
{ \
return __hpp__sort(a, b, he_get_raw_##_field); \
}
@ -361,7 +364,8 @@ HPP_PERCENT_ACC_FNS(overhead_acc, period)
HPP_RAW_FNS(samples, nr_events)
HPP_RAW_FNS(period, period)
static int64_t hpp__nop_cmp(struct hist_entry *a __maybe_unused,
static int64_t hpp__nop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *a __maybe_unused,
struct hist_entry *b __maybe_unused)
{
return 0;

3
tools/perf/ui/tui/helpline.c
View File

@ -9,6 +9,7 @@
#include "../libslang.h"
char ui_helpline__last_msg[1024];
bool tui_helpline__set;
static void tui_helpline__pop(void)
{
@ -35,6 +36,8 @@ static int tui_helpline__show(const char *format, va_list ap)
sizeof(ui_helpline__last_msg) - backlog, format, ap);
backlog += ret;
tui_helpline__set = true;
if (ui_helpline__last_msg[backlog - 1] == '\n') {
ui_helpline__puts(ui_helpline__last_msg);
SLsmg_refresh();

3
tools/perf/ui/tui/setup.c
View File

@ -17,6 +17,7 @@
static volatile int ui__need_resize;
extern struct perf_error_ops perf_tui_eops;
extern bool tui_helpline__set;
extern void hist_browser__init_hpp(void);
@ -159,7 +160,7 @@ int ui__init(void)
void ui__exit(bool wait_for_ok)
{
if (wait_for_ok)
if (wait_for_ok && tui_helpline__set)
ui__question_window("Fatal Error",
ui_helpline__last_msg,
"Press any key...", 0);

126
tools/perf/util/color.c
View File

@ -5,132 +5,6 @@
int perf_use_color_default = -1;
static int parse_color(const char *name, int len)
{
static const char * const color_names[] = {
"normal", "black", "red", "green", "yellow",
"blue", "magenta", "cyan", "white"
};
char *end;
int i;
for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) {
const char *str = color_names[i];
if (!strncasecmp(name, str, len) && !str[len])
return i - 1;
}
i = strtol(name, &end, 10);
if (end - name == len && i >= -1 && i <= 255)
return i;
return -2;
}
static int parse_attr(const char *name, int len)
{
static const int attr_values[] = { 1, 2, 4, 5, 7 };
static const char * const attr_names[] = {
"bold", "dim", "ul", "blink", "reverse"
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(attr_names); i++) {
const char *str = attr_names[i];
if (!strncasecmp(name, str, len) && !str[len])
return attr_values[i];
}
return -1;
}
void color_parse(const char *value, const char *var, char *dst)
{
color_parse_mem(value, strlen(value), var, dst);
}
void color_parse_mem(const char *value, int value_len, const char *var,
char *dst)
{
const char *ptr = value;
int len = value_len;
int attr = -1;
int fg = -2;
int bg = -2;
if (!strncasecmp(value, "reset", len)) {
strcpy(dst, PERF_COLOR_RESET);
return;
}
/* [fg [bg]] [attr] */
while (len > 0) {
const char *word = ptr;
int val, wordlen = 0;
while (len > 0 && !isspace(word[wordlen])) {
wordlen++;
len--;
}
ptr = word + wordlen;
while (len > 0 && isspace(*ptr)) {
ptr++;
len--;
}
val = parse_color(word, wordlen);
if (val >= -1) {
if (fg == -2) {
fg = val;
continue;
}
if (bg == -2) {
bg = val;
continue;
}
goto bad;
}
val = parse_attr(word, wordlen);
if (val < 0 || attr != -1)
goto bad;
attr = val;
}
if (attr >= 0 || fg >= 0 || bg >= 0) {
int sep = 0;
*dst++ = '\033';
*dst++ = '[';
if (attr >= 0) {
*dst++ = '0' + attr;
sep++;
}
if (fg >= 0) {
if (sep++)
*dst++ = ';';
if (fg < 8) {
*dst++ = '3';
*dst++ = '0' + fg;
} else {
dst += sprintf(dst, "38;5;%d", fg);
}
}
if (bg >= 0) {
if (sep++)
*dst++ = ';';
if (bg < 8) {
*dst++ = '4';
*dst++ = '0' + bg;
} else {
dst += sprintf(dst, "48;5;%d", bg);
}
}
*dst++ = 'm';
}
*dst = 0;
return;
bad:
die("bad color value '%.*s' for variable '%s'", value_len, value, var);
}
int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
{
if (value) {

2
tools/perf/util/color.h
View File

@ -30,8 +30,6 @@ extern int perf_use_color_default;
int perf_color_default_config(const char *var, const char *value, void *cb);
int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty);
void color_parse(const char *value, const char *var, char *dst);
void color_parse_mem(const char *value, int len, const char *var, char *dst);
int color_vsnprintf(char *bf, size_t size, const char *color,
const char *fmt, va_list args);
int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args);

27
tools/perf/util/evlist.c
View File

@ -1436,33 +1436,6 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp)
return printed + fprintf(fp, "\n");
}
int perf_evlist__strerror_tp(struct perf_evlist *evlist __maybe_unused,
int err, char *buf, size_t size)
{
char sbuf[128];
switch (err) {
case ENOENT:
scnprintf(buf, size, "%s",
"Error:\tUnable to find debugfs\n"
"Hint:\tWas your kernel compiled with debugfs support?\n"
"Hint:\tIs the debugfs filesystem mounted?\n"
"Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'");
break;
case EACCES:
scnprintf(buf, size,
"Error:\tNo permissions to read %s/tracing/events/raw_syscalls\n"
"Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
debugfs_mountpoint, debugfs_mountpoint);
break;
default:
scnprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
break;
}
return 0;
}
int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused,
int err, char *buf, size_t size)
{

1
tools/perf/util/evlist.h
View File

@ -183,7 +183,6 @@ static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
int perf_evlist__strerror_tp(struct perf_evlist *evlist, int err, char *buf, size_t size);
int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);

48
tools/perf/util/hist.c
View File

@ -241,6 +241,20 @@ static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
return he->stat.period == 0;
}
static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
{
rb_erase(&he->rb_node, &hists->entries);
if (sort__need_collapse)
rb_erase(&he->rb_node_in, &hists->entries_collapsed);
--hists->nr_entries;
if (!he->filtered)
--hists->nr_non_filtered_entries;
hist_entry__delete(he);
}
void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
{
struct rb_node *next = rb_first(&hists->entries);
@ -258,16 +272,7 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
(zap_kernel && n->level != '.') ||
hists__decay_entry(hists, n)) &&
!n->used) {
rb_erase(&n->rb_node, &hists->entries);
if (sort__need_collapse)
rb_erase(&n->rb_node_in, &hists->entries_collapsed);
--hists->nr_entries;
if (!n->filtered)
--hists->nr_non_filtered_entries;
hist_entry__free(n);
hists__delete_entry(hists, n);
}
}
}
@ -281,16 +286,7 @@ void hists__delete_entries(struct hists *hists)
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
rb_erase(&n->rb_node, &hists->entries);
if (sort__need_collapse)
rb_erase(&n->rb_node_in, &hists->entries_collapsed);
--hists->nr_entries;
if (!n->filtered)
--hists->nr_non_filtered_entries;
hist_entry__free(n);
hists__delete_entry(hists, n);
}
}
@ -433,6 +429,8 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
if (!he)
return NULL;
hists->nr_entries++;
rb_link_node(&he->rb_node_in, parent, p);
rb_insert_color(&he->rb_node_in, hists->entries_in);
out:
@ -915,7 +913,7 @@ hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
if (perf_hpp__should_skip(fmt))
continue;
cmp = fmt->cmp(left, right);
cmp = fmt->cmp(fmt, left, right);
if (cmp)
break;
}
@ -933,7 +931,7 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
if (perf_hpp__should_skip(fmt))
continue;
cmp = fmt->collapse(left, right);
cmp = fmt->collapse(fmt, left, right);
if (cmp)
break;
}
@ -941,7 +939,7 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
return cmp;
}
void hist_entry__free(struct hist_entry *he)
void hist_entry__delete(struct hist_entry *he)
{
zfree(&he->branch_info);
zfree(&he->mem_info);
@ -981,7 +979,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
iter->callchain,
he->callchain);
}
hist_entry__free(he);
hist_entry__delete(he);
return false;
}
@ -1063,7 +1061,7 @@ static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
if (perf_hpp__should_skip(fmt))
continue;
cmp = fmt->sort(a, b);
cmp = fmt->sort(fmt, a, b);
if (cmp)
break;
}

11
tools/perf/util/hist.h
View File

@ -119,7 +119,7 @@ int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
int hist_entry__transaction_len(void);
int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
struct hists *hists);
void hist_entry__free(struct hist_entry *);
void hist_entry__delete(struct hist_entry *he);
void hists__output_resort(struct hists *hists, struct ui_progress *prog);
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
@ -195,9 +195,12 @@ struct perf_hpp_fmt {
struct hist_entry *he);
int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he);
int64_t (*cmp)(struct hist_entry *a, struct hist_entry *b);
int64_t (*collapse)(struct hist_entry *a, struct hist_entry *b);
int64_t (*sort)(struct hist_entry *a, struct hist_entry *b);
int64_t (*cmp)(struct perf_hpp_fmt *fmt,
struct hist_entry *a, struct hist_entry *b);
int64_t (*collapse)(struct perf_hpp_fmt *fmt,
struct hist_entry *a, struct hist_entry *b);
int64_t (*sort)(struct perf_hpp_fmt *fmt,
struct hist_entry *a, struct hist_entry *b);
struct list_head list;
struct list_head sort_list;

1
tools/perf/util/parse-events.h
View File

@ -71,6 +71,7 @@ struct parse_events_term {
int type_val;
int type_term;
struct list_head list;
bool used;
};
struct parse_events_evlist {

2
tools/perf/util/parse-options.c
View File

@ -46,7 +46,7 @@ static int get_value(struct parse_opt_ctx_t *p,
return opterror(opt, "is not usable", flags);
if (opt->flags & PARSE_OPT_EXCLUSIVE) {
if (p->excl_opt) {
if (p->excl_opt && p->excl_opt != opt) {
char msg[128];
if (((flags & OPT_SHORT) && p->excl_opt->short_name) ||

102
tools/perf/util/pmu.c
View File

@ -550,6 +550,35 @@ static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v,
}
}
/*
* Term is a string term, and might be a param-term. Try to look up it's value
* in the remaining terms.
* - We have a term like "base-or-format-term=param-term",
* - We need to find the value supplied for "param-term" (with param-term named
* in a config string) later on in the term list.
*/
static int pmu_resolve_param_term(struct parse_events_term *term,
struct list_head *head_terms,
__u64 *value)
{
struct parse_events_term *t;
list_for_each_entry(t, head_terms, list) {
if (t->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
if (!strcmp(t->config, term->config)) {
t->used = true;
*value = t->val.num;
return 0;
}
}
}
if (verbose)
printf("Required parameter '%s' not specified\n", term->config);
return -1;
}
/*
* Setup one of config[12] attr members based on the
* user input data - term parameter.
@ -557,25 +586,33 @@ static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v,
static int pmu_config_term(struct list_head *formats,
struct perf_event_attr *attr,
struct parse_events_term *term,
struct list_head *head_terms,
bool zero)
{
struct perf_pmu_format *format;
__u64 *vp;
__u64 val;
/*
* If this is a parameter we've already used for parameterized-eval,
* skip it in normal eval.
*/
if (term->used)
return 0;
/*
* Support only for hardcoded and numnerial terms.
* Hardcoded terms should be already in, so nothing
* to be done for them.
*/
if (parse_events__is_hardcoded_term(term))
return 0;
if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
return -EINVAL;
format = pmu_find_format(formats, term->config);
if (!format)
if (!format) {
if (verbose)
printf("Invalid event/parameter '%s'\n", term->config);
return -EINVAL;
}
switch (format->value) {
case PERF_PMU_FORMAT_VALUE_CONFIG:
@ -592,11 +629,25 @@ static int pmu_config_term(struct list_head *formats,
}
/*
* XXX If we ever decide to go with string values for
* non-hardcoded terms, here's the place to translate
* them into value.
* Either directly use a numeric term, or try to translate string terms
* using event parameters.
*/
pmu_format_value(format->bits, term->val.num, vp, zero);
if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
val = term->val.num;
else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) {
if (strcmp(term->val.str, "?")) {
if (verbose)
pr_info("Invalid sysfs entry %s=%s\n",
term->config, term->val.str);
return -EINVAL;
}
if (pmu_resolve_param_term(term, head_terms, &val))
return -EINVAL;
} else
return -EINVAL;
pmu_format_value(format->bits, val, vp, zero);
return 0;
}
@ -607,9 +658,10 @@ int perf_pmu__config_terms(struct list_head *formats,
{
struct parse_events_term *term;
list_for_each_entry(term, head_terms, list)
if (pmu_config_term(formats, attr, term, zero))
list_for_each_entry(term, head_terms, list) {
if (pmu_config_term(formats, attr, term, head_terms, zero))
return -EINVAL;
}
return 0;
}
@ -767,10 +819,36 @@ void perf_pmu__set_format(unsigned long *bits, long from, long to)
set_bit(b, bits);
}
static int sub_non_neg(int a, int b)
{
if (b > a)
return 0;
return a - b;
}
static char *format_alias(char *buf, int len, struct perf_pmu *pmu,
struct perf_pmu_alias *alias)
{
snprintf(buf, len, "%s/%s/", pmu->name, alias->name);
struct parse_events_term *term;
int used = snprintf(buf, len, "%s/%s", pmu->name, alias->name);
list_for_each_entry(term, &alias->terms, list) {
if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR)
used += snprintf(buf + used, sub_non_neg(len, used),
",%s=%s", term->config,
term->val.str);
}
if (sub_non_neg(len, used) > 0) {
buf[used] = '/';
used++;
}
if (sub_non_neg(len, used) > 0) {
buf[used] = '\0';
used++;
} else
buf[len - 1] = '\0';
return buf;
}

37
tools/perf/util/sort.c
View File

@ -1304,6 +1304,37 @@ static int __sort__hpp_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return hse->se->se_snprintf(he, hpp->buf, hpp->size, len);
}
static int64_t __sort__hpp_cmp(struct perf_hpp_fmt *fmt,
struct hist_entry *a, struct hist_entry *b)
{
struct hpp_sort_entry *hse;
hse = container_of(fmt, struct hpp_sort_entry, hpp);
return hse->se->se_cmp(a, b);
}
static int64_t __sort__hpp_collapse(struct perf_hpp_fmt *fmt,
struct hist_entry *a, struct hist_entry *b)
{
struct hpp_sort_entry *hse;
int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
hse = container_of(fmt, struct hpp_sort_entry, hpp);
collapse_fn = hse->se->se_collapse ?: hse->se->se_cmp;
return collapse_fn(a, b);
}
static int64_t __sort__hpp_sort(struct perf_hpp_fmt *fmt,
struct hist_entry *a, struct hist_entry *b)
{
struct hpp_sort_entry *hse;
int64_t (*sort_fn)(struct hist_entry *, struct hist_entry *);
hse = container_of(fmt, struct hpp_sort_entry, hpp);
sort_fn = hse->se->se_sort ?: hse->se->se_cmp;
return sort_fn(a, b);
}
static struct hpp_sort_entry *
__sort_dimension__alloc_hpp(struct sort_dimension *sd)
{
@ -1322,9 +1353,9 @@ __sort_dimension__alloc_hpp(struct sort_dimension *sd)
hse->hpp.entry = __sort__hpp_entry;
hse->hpp.color = NULL;
hse->hpp.cmp = sd->entry->se_cmp;
hse->hpp.collapse = sd->entry->se_collapse ? : sd->entry->se_cmp;
hse->hpp.sort = sd->entry->se_sort ? : hse->hpp.collapse;
hse->hpp.cmp = __sort__hpp_cmp;
hse->hpp.collapse = __sort__hpp_collapse;
hse->hpp.sort = __sort__hpp_sort;
INIT_LIST_HEAD(&hse->hpp.list);
INIT_LIST_HEAD(&hse->hpp.sort_list);