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linux/tools/perf
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Arnaldo Carvalho de Melo 2480232c61 perf test task_exit: No need for a cycles event to check if we get an PERF_RECORD_EXIT 
The intent of this test is to check we get a PERF_RECORD_EXIT as asked
for by setting perf_event_attr.task=1.

When the test was written we didn't had the "dummy" event so we went
with the default event, "cycles".

There were reports of this test failing sometimes, one of these reports
was with a PREEMPT_RT_FULL, but I noticed it failing sometimes with an
aarch64 Firefly board.

In the kernel the call to perf_event_task_output(), that generates the
PERF_RECORD_EXIT may fail when there is not enough memory in the ring
buffer, if the ring buffer is paused, etc.

So switch to using the "dummy" event to use the ring buffer just for
what the test was designed for, avoiding uneeded PERF_RECORD_SAMPLEs.

Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZLGXmMuNRpx1ubFm@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-17 10:27:44 -03:00
..
arch tools headers UAPI: Sync files changed by new cachestat syscall with the kernel sources 2023-07-11 11:41:15 -03:00
bench perf bench sched messaging: Free contexts on exit 2023-06-12 18:18:14 -03:00
dlfilters perf tools: Fix usage of the verbose variable 2022-12-20 15:16:33 -03:00
Documentation perf lock contention: Add --output option 2023-07-01 10:48:48 -07:00
examples/bpf perf trace: Remove unused bpf map 'syscalls' 2022-11-23 10:30:00 -03:00
include/perf
jvmti
pmu-events perf vendor events amd: Fix large metrics 2023-07-11 11:50:39 -03:00
python
scripts perf python scripting: Get rid of unused import in arm-cs-trace-disasm 2023-06-13 23:40:33 -03:00
tests perf test task_exit: No need for a cycles event to check if we get an PERF_RECORD_EXIT 2023-07-17 10:27:44 -03:00
trace perf beauty: Update copy of linux/socket.h with the kernel sources 2023-07-14 09:59:56 -03:00
ui perf annotation: Switch lock from a mutex to a sharded_mutex 2023-06-20 17:04:21 -07:00
util perf parse-events: Avoid SEGV if PMU lookup fails for legacy cache terms 2023-07-12 16:03:24 -03:00
.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 bench: Add missing setlocale() call to allow usage of %'d style formatting 2023-06-05 10:36:58 -03:00
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 srcline: Optimize comparision against SRCLINE_UNKNOWN 2023-06-12 18:17:00 -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: Check arguments to show libpfm4 events 2023-06-12 15:57:53 -03:00
builtin-lock.c perf lock contention: Add --output option 2023-07-01 10:48:48 -07:00
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 pmus: Remove perf_pmus__has_hybrid 2023-05-27 09:42:38 -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: Remove some large stack allocations 2023-06-12 18:18:14 -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 annotation: Switch lock from a mutex to a sharded_mutex 2023-06-20 17:04:21 -07:00
builtin-trace.c perf callchain: Use pthread keys for tls callchain_cursor 2023-06-12 15:57:54 -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: Make the difference output easier to read 2023-06-09 10:56:40 -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 perf tools: Use "grep -E" instead of "egrep" 2022-12-14 15:28:19 -03:00
Makefile.config perf build: Fix library not found error when using CSLIBS 2023-07-11 11:46:35 -03:00
Makefile.perf perf: Replace deprecated -target with --target= for Clang 2023-06-27 12:13:22 -07:00
MANIFEST tools lib traceevent: Remove libtraceevent 2022-12-14 11:16:12 -03:00
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 util: Move input_name to util 2023-04-10 19:21:31 -03:00
perf.h perf util: Move perf_guest/host declarations 2023-04-10 19:22:05 -03:00