Arnaldo Carvalho de Melo 42ef8a78c1 perf stat: Fallback to user only counters when perf_event_paranoid > 1 ... After 0161028b7c ("perf/core: Change the default paranoia level to 2") 'perf stat' fails for users without CAP_SYS_ADMIN, so just use 'perf_evsel__fallback()' to have the same behaviour as 'perf record', i.e. set perf_event_attr.exclude_kernel to 1. Now: [acme@jouet linux]$ perf stat usleep 1 Performance counter stats for 'usleep 1': 0.352536 task-clock:u (msec) # 0.423 CPUs utilized 0 context-switches:u # 0.000 K/sec 0 cpu-migrations:u # 0.000 K/sec 49 page-faults:u # 0.139 M/sec 309,407 cycles:u # 0.878 GHz 243,791 instructions:u # 0.79 insn per cycle 49,622 branches:u # 140.757 M/sec 3,884 branch-misses:u # 7.83% of all branches 0.000834174 seconds time elapsed [acme@jouet linux]$ Reported-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-b20jmx4dxt5hpaa9t2rroi0o@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2016-05-12 16:25:18 -03:00
..
arch	perf dwarf: Guard !x86_64 definitions under #ifdef else clause	2016-05-12 11:26:59 -03:00
bench
config	perf probe: Check if dwarf_getlocations() is available	2016-05-12 11:26:59 -03:00
Documentation
jvmti
python
scripts
tests
trace/strace/groups
ui	perf hists: Fix determination of a callchain node's childlessness	2016-03-30 18:08:39 -03:00
util	perf evsel: Handle EACCESS + perf_event_paranoid=2 in fallback()	2016-05-12 16:13:16 -03:00
.gitignore
Build
builtin-annotate.c
builtin-bench.c
builtin-buildid-cache.c
builtin-buildid-list.c
builtin-config.c
builtin-data.c
builtin-diff.c
builtin-evlist.c
builtin-help.c
builtin-inject.c
builtin-kmem.c
builtin-kvm.c
builtin-list.c
builtin-lock.c
builtin-mem.c
builtin-probe.c
builtin-record.c
builtin-report.c
builtin-sched.c
builtin-script.c	perf script: Use readdir() instead of deprecated readdir_r()	2016-05-12 11:26:57 -03:00
builtin-stat.c	perf stat: Fallback to user only counters when perf_event_paranoid > 1	2016-05-12 16:25:18 -03:00
builtin-timechart.c
builtin-top.c
builtin-trace.c
builtin-version.c
builtin.h
command-list.txt
CREDITS
design.txt
Makefile
Makefile.perf
MANIFEST
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h
perf-with-kcore.sh
perf.c
perf.h