kernel_optimize_test/arch/tile
David Sharp 8cbd9cc625 tracing,x86: Add a TSC trace_clock
In order to promote interoperability between userspace tracers and ftrace,
add a trace_clock that reports raw TSC values which will then be recorded
in the ring buffer. Userspace tracers that also record TSCs are then on
exactly the same time base as the kernel and events can be unambiguously
interlaced.

Tested: Enabled a tracepoint and the "tsc" trace_clock and saw very large
timestamp values.

v2:
Move arch-specific bits out of generic code.
v3:
Rename "x86-tsc", cleanups
v7:
Generic arch bits in Kbuild.

Google-Bug-Id: 6980623
Link: http://lkml.kernel.org/r/1352837903-32191-1-git-send-email-dhsharp@google.com

Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>
Signed-off-by: David Sharp <dhsharp@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-11-13 15:48:27 -05:00
..
configs netfilter: remove xt_NOTRACK 2012-09-03 13:36:40 +02:00
gxio arch/tile: provide kernel support for the tilegx USB shim 2012-07-18 16:40:24 -04:00
include tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
kernel arch/tile: avoid build warnings from duplicate ELF_R_xxx #defines 2012-10-23 10:22:48 -04:00
kvm virtio: expose for non-virtualization users too 2011-07-23 16:20:30 +09:30
lib arch/tile: break out the "csum a long" function to <asm/checksum.h> 2012-07-11 16:04:57 -04:00
mm readahead: fault retry breaks mmap file read random detection 2012-10-09 16:22:47 +09:00
Kbuild arch/tile: core support for Tilera 32-bit chips. 2010-06-04 17:11:18 -04:00
Kconfig Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile arch/tile: avoid generating .eh_frame information in modules 2012-10-23 10:21:43 -04:00