kernel_optimize_test/tools
Arnaldo Carvalho de Melo f62d3f0f45 perf event: No need to create a thread when handling PERF_RECORD_EXIT
When we were processing a PERF_RECORD_EXIT event we first used
machine__findnew_thread for both the thread exiting and for its parent,
only to use just the thread struct associated with the one exiting, and
to just delete it.

If it existed, i.e. not created at this very moment in
machine__findnew_thread, it will be moved to the machine->dead_threads
linked list, because we may have hist_entries pointing to it, but if it
was created just do be deleted, it will just sit there with no
references at all.

Use the new machine__find_thread() method so that if it is not there, we
don't create it.

As a bonus the parent thread will also not be created at this point.

Create process_fork() and process_exit() helpers to use this and make
the builtins use it instead of the generic process_task(), ditched by
this patch.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-z7n2y98ebjyrvmytaope4vdl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 16:33:45 -03:00
..
firewire
hv Tools: hv: verify origin of netlink connector message 2012-06-10 00:29:46 +09:00
include/tools tools/include: Add byteshift headers for endian access 2012-02-28 10:22:51 -08:00
lguest lguest: move the lguest tool to the tools directory 2012-01-12 15:44:47 +10:30
lib/traceevent tools lib traceevent: Fix error path on pevent_parse_event 2012-09-25 09:53:53 -03:00
nfsd NFSD: Added fault injection script 2011-11-07 21:10:47 -05:00
perf perf event: No need to create a thread when handling PERF_RECORD_EXIT 2012-10-06 16:33:45 -03:00
power tools/power: turbostat: fix large c1% issue 2012-07-19 22:26:33 -04:00
scripts perf tools: Let O= makes handle relative paths 2012-08-16 14:11:11 -03:00
testing fault-injection: fix failcmd.sh warning 2012-07-31 18:42:38 -07:00
usb testusb: expose looping forever option "l" to user 2012-06-13 16:15:03 -07:00
virtio virtio/tools: add delayed interupt mode 2012-05-02 18:22:14 +03:00
vm mm: Fix signal SIGFPE in slabinfo.c. 2012-07-02 23:11:14 +03:00
Makefile tools: Connect to the kernel build system 2012-04-11 15:00:17 -03:00