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alistair23-linux/tools/perf/tests
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Michael Petlan 194cb6b50f perf test: Allow multiple probes in record+script_probe_vfs_getname.sh 
Sometimes when adding a kprobe by perf, it results in multiple probe
points, such as the following:

  # ./perf probe -l
    probe:vfs_getname    (on getname_flags:73@fs/namei.c with pathname)
    probe:vfs_getname_1  (on getname_flags:73@fs/namei.c with pathname)
    probe:vfs_getname_2  (on getname_flags:73@fs/namei.c with pathname)
  # cat /sys/kernel/debug/tracing/kprobe_events
  p:probe/vfs_getname _text+5501804 pathname=+0(+0(%gpr31)):string
  p:probe/vfs_getname_1 _text+5505388 pathname=+0(+0(%gpr31)):string
  p:probe/vfs_getname_2 _text+5508396 pathname=+0(+0(%gpr31)):string

In this test, we need to record all of them and expect any of them in
the perf-script output, since it's not clear which one will be used for
the desired syscall:

  # perf stat -e probe:vfs_getname\* -- touch /tmp/nic

   Performance counter stats for 'touch /tmp/nic':

                31      probe:vfs_getname_2
                 0      probe:vfs_getname_1
                 1      probe:vfs_getname
       0.001421826 seconds time elapsed

       0.001506000 seconds user
       0.000000000 seconds sys

If the test relies only on probe:vfs_getname, it might easily miss the
relevant data.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
LPU-Reference: 20200722135845.29958-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-08-13 09:34:26 -03:00
..
attr perf test: Ensure sample_period is set libpfm4 events 2020-07-30 07:01:49 -03:00
shell perf test: Allow multiple probes in record+script_probe_vfs_getname.sh 2020-08-13 09:34:26 -03:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
api-io.c tools api: Add a lightweight buffered reading api 2020-04-30 10:48:28 -03:00
attr.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
attr.py perf script python: Add Python3 support to tests/attr.py 2019-02-05 10:31:08 -03:00
backward-ring-buffer.c perf tests: Fix out of bounds memory access 2019-11-07 09:04:22 -03:00
bitmap.c perf env: Remove needless cpumap.h header 2019-09-20 09:19:21 -03:00
bp_account.c perf tests bp_account: Make global variable static 2020-03-02 11:15:07 -03:00
bp_signal.c perf tests bp_signal: Show expected versus obtained values 2020-01-06 11:46:09 -03:00
bp_signal_overflow.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
bpf-script-example.c perf tests: Add missing SPDX headers 2019-06-17 15:57:19 -03:00
bpf-script-test-kbuild.c perf tests: Add missing SPDX headers 2019-06-17 15:57:19 -03:00
bpf-script-test-prologue.c perf tests: Add missing SPDX headers 2019-06-17 15:57:19 -03:00
bpf-script-test-relocation.c perf tests: Add missing SPDX headers 2019-06-17 15:57:19 -03:00
bpf.c libperf: Adopt perf_mmap__read_event() from tools/perf 2019-10-10 11:49:46 -03:00
Build perf tests: Add parse metric test for ipc metric 2020-06-22 16:28:09 -03:00
builtin-test.c perf tests: Add parse metric test for ipc metric 2020-06-22 16:28:09 -03:00
clang.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
code-reading.c perf evlist: Fix the class prefix for 'struct evlist' strerror methods 2020-06-22 16:28:09 -03:00
cpumap.c perf test: Fix test case Merge cpu map 2020-01-30 11:55:02 +01:00
demangle-java-test.c perf tests: Add test for the java demangler 2020-05-28 10:03:28 -03:00
dso-data.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
dwarf-unwind.c perf test: Initialize memory in dwarf-unwind 2020-06-01 12:24:23 -03:00
event-times.c perf evsel: Rename perf_evsel__open_per_*() to evsel__open_per_*() 2020-05-05 16:35:30 -03:00
event_update.c perf evsel: Rename *perf_evsel__*name() to *evsel__*name() 2020-05-05 16:35:30 -03:00
evsel-roundtrip-name.c perf evsel: Rename perf_evsel__[hs]w_cache* to evsel__[hs]w_cache* 2020-05-28 10:03:24 -03:00
evsel-tp-sched.c perf evsel: Rename perf_evsel__new*() to evsel__new*() 2020-05-28 10:03:24 -03:00
expr.c perf metric: Add 'struct expr_id_data' to keep expr value 2020-07-17 09:09:48 -03:00
fdarray.c libperf: Add flags to fdarray fds objects 2020-07-21 09:52:51 -03:00
genelf.c perf jit: Move test functionality in to a test 2019-11-29 12:20:45 -03:00
hists_common.c perf tools: Move event synthesizing routines to separate header 2019-09-20 09:19:22 -03:00
hists_common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hists_cumulate.c perf evsel: Rename perf_evsel__resort*() to evsel__resort*() 2020-05-28 10:03:24 -03:00
hists_filter.c perf evsel: Rename perf_evsel__resort*() to evsel__resort*() 2020-05-28 10:03:24 -03:00
hists_link.c libperf: Add perf_evlist__first()/last() functions 2019-09-25 09:51:48 -03:00
hists_output.c perf evsel: Rename perf_evsel__resort*() to evsel__resort*() 2020-05-28 10:03:24 -03:00
is_printable_array.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
keep-tracking.c libperf: Adopt perf_mmap__read_event() from tools/perf 2019-10-10 11:49:46 -03:00
kmod-path.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
llvm.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
llvm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
make perf build: Add a LIBPFM4=1 build test entry 2020-05-29 16:51:38 -03:00
maps.c perf tests: Rename tests/map_groups.c to tests/maps.c 2019-11-26 11:07:46 -03:00
mem.c perf symbols: Move mem_info and branch_info out of symbol.h 2019-08-31 22:27:48 -03:00
mem2node.c perf env: Remove needless cpumap.h header 2019-09-20 09:19:21 -03:00
mmap-basic.c perf evsel: Rename perf_evsel__new*() to evsel__new*() 2020-05-28 10:03:24 -03:00
mmap-thread-lookup.c libperf: Move 'page_size' global variable to libperf 2019-09-25 09:51:48 -03:00
openat-syscall-all-cpus.c perf counts: Rename perf_evsel__*counts() to evsel__*counts() 2020-05-28 10:03:24 -03:00
openat-syscall-tp-fields.c perf evsel: Rename perf_evsel__new*() to evsel__new*() 2020-05-28 10:03:24 -03:00
openat-syscall.c perf evsel: Rename perf_evsel__new*() to evsel__new*() 2020-05-28 10:03:24 -03:00
parse-events.c perf tools: Fix term parsing for raw syntax 2020-07-30 07:01:48 -03:00
parse-metric.c perf metric: Add metric group test 2020-07-30 07:01:50 -03:00
parse-no-sample-id-all.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
perf-hooks.c perf tests: Avoid raising SEGV using an obvious NULL dereference 2019-09-27 09:26:14 -03:00
perf-record.c perf script: Show text poke address symbol 2020-07-10 08:39:14 -03:00
perf-targz-src-pkg License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pfm.c perf tools: Add optional support for libpfm4 2020-05-29 16:51:38 -03:00
pmu-events.c perf metric: Rename expr__add_id() to expr__add_val() 2020-07-17 09:09:48 -03:00
pmu.c perf parse-events: Make add PMU verbose output clearer 2020-05-28 10:03:26 -03:00
python-use.c perf test: Use header file util/debug.h 2018-06-04 10:28:53 -03:00
sample-parsing.c perf evsel: Rename perf_evsel__parse_sample*() to evsel__parse_sample*() 2020-05-05 16:35:31 -03:00
sdt.c perf tools: No need to include internal/lib.h from util/util.h 2019-09-25 09:51:48 -03:00
stat.c perf tools: Move event synthesizing routines to separate header 2019-09-20 09:19:22 -03:00
sw-clock.c perf evsel: Rename perf_evsel__new*() to evsel__new*() 2020-05-28 10:03:24 -03:00
switch-tracking.c perf evsel: Rename perf_evsel__{str,int}val() and other tracepoint field metehods to to evsel__*() 2020-05-05 16:35:30 -03:00
task-exit.c perf test: Avoid infinite loop for task exit case 2019-10-15 08:36:22 -03:00
tests.h perf tests: Add parse metric test for ipc metric 2020-06-22 16:28:09 -03:00
thread-map.c perf tools: Move event synthesizing routines to separate header 2019-09-20 09:19:22 -03:00
thread-maps-share.c perf tests: Rename thread-mg-share to thread-maps-share 2019-11-26 11:07:46 -03:00
time-utils-test.c perf evlist: Rename struct perf_evlist to struct evlist 2019-07-29 18:34:42 -03:00
topology.c perf test session topology: Fix data path 2020-04-23 11:08:24 -03:00
unit_number__scnprintf.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
vmlinux-kallsyms.c perf maps: Merge 'struct maps' with 'struct map_groups' 2019-11-26 11:07:46 -03:00
wp.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00