Arnaldo Carvalho de Melo 0a7c74eae3 perf tools: Provide mutex wrappers for pthreads rwlocks ... Andi reported a performance drop in single threaded perf tools such as 'perf script' due to the growing number of locks being put in place to allow for multithreaded tools, so wrap the POSIX threads rwlock routines with the names used for such kinds of locks in the Linux kernel and then allow for tools to ask for those locks to be used or not. I.e. a tool may have a multithreaded phase and then switch to single threaded, like the upcoming patches for the synthesizing of PERF_RECORD_{FORK,MMAP,etc} for pre-existing processes to then switch to single threaded mode in 'perf top'. The init routines will not be conditional, this way starting as single threaded to then move to multi threaded mode should be possible. Reported-by: Andi Kleen <ak@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20170404161739.GH12903@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2017-09-21 13:28:06 -03:00
..
arch	perf tests: Remove Intel CQM perf test	2017-09-21 13:12:58 -03:00
bench	perf tools: Use __maybe_unused consistently	2017-06-19 15:27:06 -03:00
Documentation	perf script: Support user regs	2017-09-13 09:49:14 -03:00
jvmti	perf jit: fix typo: "incalid" -> "invalid"	2017-06-27 11:55:06 -03:00
pmu-events	perf vendor events: Add JSON metrics for Skylake server	2017-09-13 09:49:18 -03:00
python	perf python: Add tracepoint example	2016-07-12 16:23:35 -03:00
scripts	perf script python: Add support for sqlite3 to call-graph-from-sql.py	2017-08-15 17:03:38 -03:00
tests	perf tools: Make copyfile_offset() static	2017-09-13 09:49:16 -03:00
trace	perf trace beauty madvise: Generate 'behavior' string table from kernel headers	2017-09-21 13:12:59 -03:00
ui	perf ui progress: Add size info into progress bar	2017-09-13 09:49:15 -03:00
util	perf tools: Provide mutex wrappers for pthreads rwlocks	2017-09-21 13:28:06 -03:00
.gitignore	perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git	2017-03-13 10:59:36 -03:00
Build	perf trace: Only build tools/perf/trace/beauty/ when building 'perf trace'	2017-07-18 23:13:52 -03:00
builtin-annotate.c	perf annotate browser: Support --show-nr-samples option	2017-08-18 11:15:09 -03:00
builtin-bench.c	perf tools: Remove unused 'prefix' from builtin functions	2017-03-27 11:58:09 -03:00
builtin-buildid-cache.c	perf buildid-cache: Cache debuginfo	2017-07-18 23:14:11 -03:00
builtin-buildid-list.c	perf tools: Include errno.h where needed	2017-04-19 13:01:51 -03:00
builtin-c2c.c	perf tools: Fix leaking rec_argv in error cases	2017-09-18 09:40:21 -03:00
builtin-config.c	perf config: Write a config file just once	2017-09-13 09:49:15 -03:00
builtin-data.c	perf data: Add doc when no conversion support compiled	2017-07-28 16:30:45 -03:00
builtin-diff.c	perf config: Do not die when parsing u64 or int config values	2017-06-27 11:44:58 -03:00
builtin-evlist.c	perf tools: Remove unused 'prefix' from builtin functions	2017-03-27 11:58:09 -03:00
builtin-ftrace.c	tools include: Adopt strstarts() from the kernel	2017-07-20 15:46:10 -03:00
builtin-help.c	tools include: Adopt strstarts() from the kernel	2017-07-20 15:46:10 -03:00
builtin-inject.c	perf tools: Add feature header record to pipe-mode	2017-07-18 23:14:36 -03:00
builtin-kallsyms.c	perf tools: Including missing inttypes.h header	2017-04-19 13:01:46 -03:00
builtin-kmem.c	mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic	2017-07-12 16:26:03 -07:00
builtin-kvm.c	perf tools: Provide mutex wrappers for pthreads rwlocks	2017-09-21 13:28:06 -03:00
builtin-list.c	perf list: Add metric groups to perf list	2017-09-13 09:49:13 -03:00
builtin-lock.c	perf tools: Include errno.h where needed	2017-04-19 13:01:51 -03:00
builtin-mem.c	perf tools: Fix leaking rec_argv in error cases	2017-09-18 09:40:21 -03:00
builtin-probe.c	perf buildid-cache: Support binary objects from other namespaces	2017-07-18 23:14:11 -03:00
builtin-record.c	perf record: Support direct --user-regs arguments	2017-09-13 09:49:14 -03:00
builtin-report.c	perf report: Group stat values on global event id	2017-08-28 16:44:44 -03:00
builtin-sched.c	perf sched timehist: Add pid and tid options	2017-09-13 09:49:12 -03:00
builtin-script.c	perf tools: Provide mutex wrappers for pthreads rwlocks	2017-09-21 13:28:06 -03:00
builtin-stat.c	perf stat: Fall weak group back even for EBADF	2017-09-13 09:49:16 -03:00
builtin-timechart.c	perf tools: Fix leaking rec_argv in error cases	2017-09-18 09:40:21 -03:00
builtin-top.c	perf top: Support lookup of symbols in other mount namespaces.	2017-07-25 22:43:16 -03:00
builtin-trace.c	perf tools: Fix leaking rec_argv in error cases	2017-09-18 09:40:21 -03:00
builtin-version.c	perf tools: Remove string.h, unistd.h and sys/stat.h from util.h	2017-04-24 13:43:33 -03:00
builtin.h	perf tools: Remove stale prototypes from builtin.h	2017-04-24 13:43:33 -03:00
check-headers.sh	tools include uapi: Grab a copy of linux/vhost.h	2017-08-01 13:04:56 -03:00
command-list.txt	perf tools: Missing c2c command in command-list	2017-03-13 10:59:31 -03:00
CREDITS
design.txt
Makefile
Makefile.config	perf tools: Robustify detection of clang binary	2017-08-28 16:44:46 -03:00
Makefile.perf	perf trace beauty madvise: Generate 'behavior' string table from kernel headers	2017-09-21 13:12:59 -03:00
MANIFEST	perf tools: Get all of tools/{arch,include}/ in the MANIFEST	2017-09-21 13:13:00 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h	perf tools: Use default CPUINFO_PROC where it fits	2017-08-17 16:58:21 -03:00
perf-with-kcore.sh
perf.c	perf tools: Support running perf binaries with a dash in their name	2017-09-12 12:48:54 -03:00
perf.h	perf record: Support direct --user-regs arguments	2017-09-13 09:49:14 -03:00