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7d161165d9
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Adrian Hunter 7d161165d9 perf parse-events: Do not break up AUX event group 
Do not assume which events may have a PMU name, allowing the logic to
keep an AUX event group together.

Example:

 Before:

    $ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
    WARNING: events were regrouped to match PMUs
    Cannot add AUX area sampling to a group leader
    $

 After:

    $ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
    [ perf record: Woken up 1 times to write data ]
    [ perf record: Captured and wrote 0.078 MB perf.data ]
    $ perf script -F-dso,+addr | grep -C5 tlb_flush.stlb_any | head -11
    sleep 20444 [003]  7939.510243:  1  branches:uH:  7f5350cc82a2 dl_main+0x9a2 => 7f5350cb38f0 _dl_add_to_namespace_list+0x0
    sleep 20444 [003]  7939.510243:  1  branches:uH:  7f5350cb3908 _dl_add_to_namespace_list+0x18 => 7f5350cbb080 rtld_mutex_dummy+0x0
    sleep 20444 [003]  7939.510243:  1  branches:uH:  7f5350cc8350 dl_main+0xa50 => 0 [unknown]
    sleep 20444 [003]  7939.510244:  1  branches:uH:  7f5350cc83ca dl_main+0xaca => 7f5350caeb60 _dl_process_pt_gnu_property+0x0
    sleep 20444 [003]  7939.510245:  1  branches:uH:  7f5350caeb60 _dl_process_pt_gnu_property+0x0 => 0 [unknown]
    sleep 20444  7939.510245:       10 tlb_flush.stlb_any/aux-sample-size=8192/pp: 0 7f5350caeb60 _dl_process_pt_gnu_property+0x0
    sleep 20444 [003]  7939.510254:  1  branches:uH:  7f5350cc87fe dl_main+0xefe => 7f5350ccd240 strcmp+0x0
    sleep 20444 [003]  7939.510254:  1  branches:uH:  7f5350cc8862 dl_main+0xf62 => 0 [unknown]
    sleep 20444 [003]  7939.510255:  1  branches:uH:  7f5350cc9cdc dl_main+0x23dc => 0 [unknown]
    sleep 20444 [003]  7939.510257:  1  branches:uH:  7f5350cc89f6 dl_main+0x10f6 => 7f5350cb9530 _dl_setup_hash+0x0
    sleep 20444 [003]  7939.510257:  1  branches:uH:  7f5350cc8a2d dl_main+0x112d => 7f5350cb3990 _dl_new_object+0x0
    $

Fixes: 347c2f0a09 ("perf parse-events: Sort and group parsed events")
Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20230508093952.27482-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-10 14:19:20 -03:00
..
arch Disable building BPF based features by default for v6.4. 2023-05-07 11:32:18 -07:00
bench perf bench inject-buildid: Use zfree() to reduce chances of use after free 2023-04-12 10:14:01 -03:00
dlfilters perf tools: Fix usage of the verbose variable 2022-12-20 15:16:33 -03:00
Documentation perf lock contention: Update default map size to 16384 2023-04-06 21:52:27 -03:00
examples/bpf perf trace: Remove unused bpf map 'syscalls' 2022-11-23 10:30:00 -03:00
include/perf perf bpf: Remove now unused BPF headers 2022-11-04 11:41:48 -03:00
jvmti
pmu-events perf metric: JSON flag to not group events if gathering a metric group 2023-05-10 12:35:02 -03:00
python perf python: Convert tracepoint.py example to python3 2022-04-01 16:19:35 -03:00
scripts perf script: Add new parameter in kfree_skb tracepoint to the python scripts using it 2023-05-02 08:36:14 -03:00
tests perf test test_intel_pt.sh: Test sample mode with event with PMU name 2023-05-10 14:19:20 -03:00
trace perf beauty: Update copy of linux/socket.h with the kernel sources 2023-01-18 10:12:23 -03:00
ui perf dso: Fix use before NULL check introduced by map__dso() introduction 2023-04-19 10:51:48 -03:00
util perf parse-events: Do not break up AUX event group 2023-05-10 14:19:20 -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 util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-bench.c perf bench: Add pmu-scan benchmark 2023-04-04 13:23:58 -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 c2c: Use zfree() to reduce chances of use after free 2023-04-12 09:55:10 -03:00
builtin-config.c
builtin-daemon.c perf daemon: Use zfree() to reduce chances of use after free 2023-04-12 09:52:29 -03:00
builtin-data.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-diff.c perf util: Move perf_guest/host declarations 2023-04-10 19:22:05 -03:00
builtin-evlist.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-ftrace.c perf ftrace: Make system wide the default target for latency subcommand 2023-04-04 09:39:55 -03:00
builtin-help.c perf usage: Move usage strings 2023-04-10 19:20:53 -03:00
builtin-inject.c perf dso: Add dso__filename_with_chroot() to reduce number of accesses to dso->nsinfo members 2023-04-17 18:47:55 -03:00
builtin-kallsyms.c perf map: Add helper for ->map_ip() and ->unmap_ip() 2023-04-06 22:10:17 -03:00
builtin-kmem.c perf util: Move input_name to util 2023-04-10 19:21:31 -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 util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-list.c perf list: Use zfree() to reduce chances of use after free 2023-04-12 09:55:44 -03:00
builtin-lock.c Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL" 2023-05-06 18:07:37 -03:00
builtin-mem.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-probe.c tools: Rename __fallthrough to fallthrough 2023-04-06 21:41:00 -03:00
builtin-record.c Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL" 2023-05-06 18:07:37 -03:00
builtin-report.c perf map: Add accessors for ->pgoff and ->reloc 2023-04-06 22:12:40 -03:00
builtin-sched.c perf sched: Fix sched latency analysis incorrection when using 'sched:sched_wakeup' 2023-04-12 19:30:39 -03:00
builtin-script.c perf dso: Fix use before NULL check introduced by map__dso() introduction 2023-04-19 10:51:48 -03:00
builtin-stat.c perf stat: Introduce skippable evsels 2023-05-10 12:35:02 -03:00
builtin-timechart.c perf util: Move input_name to util 2023-04-10 19:21:31 -03:00
builtin-top.c perf map: Add set_ methods for map->{start,end,pgoff,pgoff,reloc,erange_warned,dso,map_ip,unmap_ip,priv} 2023-04-19 12:54:41 -03:00
builtin-trace.c perf trace: Use zfree() to reduce chances of use after free 2023-04-12 09:54:32 -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 Disable building BPF based features by default for v6.4. 2023-05-07 11:32:18 -07:00
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: Gracefully fail the build if BUILD_BPF_SKEL=1 is specified and clang isn't available 2023-05-10 12:54:56 -03:00
Makefile.perf Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL" 2023-05-06 18:07:37 -03:00
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