mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
24e733b29f
So that it can get rid of requirement of a compiler.
Also define and use more local symbols to ease future changes.
$ sudo ./perf test -v pipe
87: perf pipe recording and injection test :
--- start ---
test child forked, pid 748003
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
748014 748014 -1 |perf
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
99.83% perf perf [.] noploop
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
99.85% perf perf [.] noploop
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.160 MB /tmp/perf.data.2XYPdw (4007 samples) ]
99.83% perf perf [.] noploop
test child finished with 0
---- end ----
perf pipe recording and injection test: Ok
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221116233854.1596378-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
35 lines
887 B
Bash
Executable File
35 lines
887 B
Bash
Executable File
#!/bin/sh
|
|
# perf pipe recording and injection test
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
data=$(mktemp /tmp/perf.data.XXXXXX)
|
|
prog="perf test -w noploop"
|
|
task="perf"
|
|
sym="noploop"
|
|
|
|
if ! perf record -e task-clock:u -o - ${prog} | perf report -i - --task | grep ${task}; then
|
|
echo "cannot find the test file in the perf report"
|
|
exit 1
|
|
fi
|
|
|
|
if ! perf record -e task-clock:u -o - ${prog} | perf inject -b | perf report -i - | grep ${sym}; then
|
|
echo "cannot find noploop function in pipe #1"
|
|
exit 1
|
|
fi
|
|
|
|
perf record -e task-clock:u -o - ${prog} | perf inject -b -o ${data}
|
|
if ! perf report -i ${data} | grep ${sym}; then
|
|
echo "cannot find noploop function in pipe #2"
|
|
exit 1
|
|
fi
|
|
|
|
perf record -e task-clock:u -o ${data} ${prog}
|
|
if ! perf inject -b -i ${data} | perf report -i - | grep ${sym}; then
|
|
echo "cannot find noploop function in pipe #3"
|
|
exit 1
|
|
fi
|
|
|
|
|
|
rm -f ${data} ${data}.old
|
|
exit 0
|