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linux/tools/perf
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Wyes Karny 48a3adcf47 perf pmu: Fix perf stat output with correct scale and unit 
The perf_pmu__parse_* functions for the sysfs files of pmu event’s
scale, unit, per-pkg and snapshot were updated in commit 7b723dbb96
("perf pmu: Be lazy about loading event info files from sysfs").
However, the paths for these sysfs files were incorrect. This resulted
in perf stat reporting values with wrong scaling and missing units. This
is fixed by correcting the paths for these sysfs files.

Before this fix:

 $sudo perf stat -e power/energy-pkg/ -- sleep 2

 Performance counter stats for 'system wide':

   351,217,188,864      power/energy-pkg/

          2.004127961 seconds time elapsed

After this fix:

 $sudo perf stat -e power/energy-pkg/ -- sleep 2

 Performance counter stats for 'system wide':

             80.58 Joules power/energy-pkg/

 	     2.004009749 seconds time elapsed

Fixes: 7b723dbb96 ("perf pmu: Be lazy about loading event info files from sysfs")
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: ravi.bangoria@amd.com
Cc: sandipan.das@amd.com
Cc: james.clark@arm.com
Cc: kan.liang@linux.intel.com
Link: https://lore.kernel.org/r/20230920122349.418673-1-wyes.karny@amd.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2023-09-26 21:41:50 -07:00
..
arch tools headers UAPI: Sync files changed by new fchmodat2 and map_shadow_stack syscalls with the kernel sources 2023-09-13 08:24:51 -03:00
bench perf bench sched-seccomp-notify: Use the tools copy of seccomp.h UAPI 2023-09-13 08:49:00 -03:00
dlfilters perf dlfilter: Add al_cleanup() 2023-08-15 16:41:49 -03:00
Documentation perf docs: Fix format of unordered lists 2023-08-16 08:37:49 -03:00
include/perf perf dlfilter: Add al_cleanup() 2023-08-15 16:41:49 -03:00
jvmti
pmu-events perf jevent: fix core dump on software events on s390 2023-09-17 15:51:57 -07:00
python
scripts perf scripts python gecko: Launch the profiler UI on the default browser with the appropriate URL 2023-08-24 14:41:49 -03:00
tests perf parse-events: Fixes relating to no_value terms 2023-09-02 08:12:15 -03:00
trace perf tools changes for v6.6: 2023-09-09 20:06:17 -07:00
ui perf tui slang: Tidy casts 2023-08-25 10:24:55 -03:00
util perf pmu: Fix perf stat output with correct scale and unit 2023-09-26 21:41:50 -07:00
.gitignore perf jevents: Run metric_test.py at compile-time 2023-02-03 17:11:39 -03:00
Build perf script: Fix Python support when no libtraceevent 2023-03-15 10:27:07 -03:00
builtin-annotate.c perf addr_location: Add init/exit/copy functions 2023-06-12 15:57:53 -03:00
builtin-bench.c perf tools changes for v6.6: 2023-09-09 20:06:17 -07:00
builtin-buildid-cache.c
builtin-buildid-list.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-c2c.c perf callchain: Use pthread keys for tls callchain_cursor 2023-06-12 15:57:54 -03:00
builtin-config.c perf path: Make mkpath thread safe, remove 16384 bytes from .bss 2023-05-28 10:24:14 -03:00
builtin-daemon.c perf tools: Add missing else to cmd_daemon subcommand condition 2023-06-27 12:09:44 -07:00
builtin-data.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-diff.c perf diff: Replaces some ',' as separator with the more usual ';' 2023-07-20 11:43:45 -03:00
builtin-evlist.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-ftrace.c perf tools fixes for v6.4: 2nd batch 2023-05-31 15:31:56 -03:00
builtin-help.c perf path: Make mkpath thread safe, remove 16384 bytes from .bss 2023-05-28 10:24:14 -03:00
builtin-inject.c perf inject: Lazily allocate guest_event event_buf 2023-06-12 18:18:14 -03:00
builtin-kallsyms.c perf symbol: Remove now unused symbol_conf.sort_by_name 2023-06-23 21:48:49 -07:00
builtin-kmem.c perf callchain: Use pthread keys for tls callchain_cursor 2023-06-12 15:57:54 -03:00
builtin-kvm.c perf evsel: Introduce evsel__name_is() method to check if the evsel name is equal to a given string 2023-04-24 14:28:11 -03:00
builtin-kwork.c perf callchain: Use pthread keys for tls callchain_cursor 2023-06-12 15:57:54 -03:00
builtin-list.c perf list: Don't print Unit for "default_core" 2023-08-31 16:24:47 -03:00
builtin-lock.c perf lock contention: Fix typo in max-stack option description 2023-08-25 10:27:07 -03:00
builtin-mem.c perf addr_location: Add init/exit/copy functions 2023-06-12 15:57:53 -03:00
builtin-probe.c perf probe: Dynamically allocate params memory 2023-05-28 10:24:02 -03:00
builtin-record.c perf parse-events: Remove BPF event support 2023-08-15 16:41:48 -03:00
builtin-report.c perf symbol: Remove now unused symbol_conf.sort_by_name 2023-06-23 21:48:49 -07:00
builtin-sched.c perf sched: Avoid large stack allocations 2023-06-12 18:18:14 -03:00
builtin-script.c perf script: Print "cgroup" field on the same line as "comm" 2023-08-08 11:21:11 -03:00
builtin-stat.c perf stat: Add missing newline in pr_err messages 2023-06-20 15:55:13 -07:00
builtin-timechart.c perf addr_location: Add init/exit/copy functions 2023-06-12 15:57:53 -03:00
builtin-top.c perf top: Don't pass an ERR_PTR() directly to perf_session__delete() 2023-08-17 14:13:04 -03:00
builtin-trace.c perf trace: Use heuristic when deciding if a syscall tracepoint "const char *" field is really a string 2023-08-18 16:33:28 -03:00
builtin-version.c Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL" 2023-05-06 18:07:37 -03:00
builtin.h perf usage: Move usage strings 2023-04-10 19:20:53 -03:00
check-headers.sh tools headers UAPI: Copy seccomp.h to be able to build 'perf bench' in older systems 2023-09-13 08:48:48 -03:00
command-list.txt perf help: Use HAVE_LIBTRACEEVENT to filter out unsupported commands 2023-01-02 11:51:53 -03:00
CREDITS
design.txt
Makefile
Makefile.config perf parse-events: Remove BPF event support 2023-08-15 16:41:48 -03:00
Makefile.perf perf build: Allow customization of clang options for BPF target 2023-08-23 15:33:18 -03:00
MANIFEST
perf-archive.sh
perf-completion.sh perf tools: Fix auto-complete on aarch64 2023-02-08 10:38:10 -03:00
perf-iostat.sh
perf-read-vdso.c
perf-sys.h
perf.c perf parse-events: Remove BPF event support 2023-08-15 16:41:48 -03:00
perf.h perf util: Move perf_guest/host declarations 2023-04-10 19:22:05 -03:00