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Perf test case 84 'perf pipe recording and injection test' sometime fails on s390, especially on z/VM virtual machines. This is caused by a very short run time of workload # perf test -w noploop which runs for 1 second. Occasionally this is not long enough and the perf report has no samples for symbol noploop. Fix this and enlarge the runtime for the perf work load to 3 seconds. This ensures the symbol noploop is always present. Since only s390 is affected, make this loop architecture dependend. Output before: Inject -b build-ids test [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.195 MB - ] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.277 MB - ] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.195 MB - ] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.160 MB /tmp/perf.data.ELzRdq (4031 samples) ] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.195 MB - ] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.195 MB - ] Inject -b build-ids test [Success] Inject --buildid-all build-ids test [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.195 MB - ] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.014 MB - ] Inject --buildid-all build-ids test [Failed - cannot find noploop function in pipe #2] Output after: Successful execution for over 10 times in a loop. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Suggested-by: Namhyung Kim <namhyung@kernel.org> Cc: agordeev@linux.ibm.com Cc: gor@linux.ibm.com Cc: hca@linux.ibm.com Link: https://lore.kernel.org/r/20241018081732.1391060-1-tmricht@linux.ibm.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
127 lines
3.2 KiB
Bash
Executable file
127 lines
3.2 KiB
Bash
Executable file
#!/bin/bash
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# perf pipe recording and injection test
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# SPDX-License-Identifier: GPL-2.0
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shelldir=$(dirname "$0")
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# shellcheck source=lib/perf_has_symbol.sh
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. "${shelldir}"/lib/perf_has_symbol.sh
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sym="noploop"
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skip_test_missing_symbol ${sym}
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data=$(mktemp /tmp/perf.data.XXXXXX)
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data2=$(mktemp /tmp/perf.data2.XXXXXX)
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prog="perf test -w noploop"
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[ "$(uname -m)" = "s390x" ] && prog="$prog 3"
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err=0
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set -e
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cleanup() {
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rm -rf "${data}"
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rm -rf "${data}".old
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rm -rf "${data2}"
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rm -rf "${data2}".old
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trap - EXIT TERM INT
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}
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trap_cleanup() {
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echo "Unexpected signal in ${FUNCNAME[1]}"
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cleanup
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exit 1
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}
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trap trap_cleanup EXIT TERM INT
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test_record_report() {
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echo
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echo "Record+report pipe test"
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task="perf"
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if ! perf record -e task-clock:u -o - ${prog} | perf report -i - --task | grep -q ${task}
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then
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echo "Record+report pipe test [Failed - cannot find the test file in the perf report #1]"
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err=1
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return
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fi
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if ! perf record -g -e task-clock:u -o - ${prog} | perf report -i - --task | grep -q ${task}
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then
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echo "Record+report pipe test [Failed - cannot find the test file in the perf report #2]"
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err=1
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return
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fi
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perf record -g -e task-clock:u -o - ${prog} > ${data}
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if ! perf report -i ${data} --task | grep -q ${task}
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then
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echo "Record+report pipe test [Failed - cannot find the test file in the perf report #3]"
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err=1
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return
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fi
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echo "Record+report pipe test [Success]"
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}
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test_inject_bids() {
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inject_opt=$1
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echo
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echo "Inject ${inject_opt} build-ids test"
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if ! perf record -e task-clock:u -o - ${prog} | perf inject ${inject_opt}| perf report -i - | grep -q ${sym}
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then
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echo "Inject build-ids test [Failed - cannot find noploop function in pipe #1]"
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err=1
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return
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fi
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if ! perf record -g -e task-clock:u -o - ${prog} | perf inject ${inject_opt} | perf report -i - | grep -q ${sym}
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then
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echo "Inject ${inject_opt} build-ids test [Failed - cannot find noploop function in pipe #2]"
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err=1
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return
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fi
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perf record -e task-clock:u -o - ${prog} | perf inject ${inject_opt} -o ${data}
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if ! perf report -i ${data} | grep -q ${sym}; then
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echo "Inject ${inject_opt} build-ids test [Failed - cannot find noploop function in pipe #3]"
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err=1
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return
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fi
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perf record -e task-clock:u -o ${data} ${prog}
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if ! perf inject ${inject_opt} -i ${data} | perf report -i - | grep -q ${sym}; then
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echo "Inject ${inject_opt} build-ids test [Failed - cannot find noploop function in pipe #4]"
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err=1
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return
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fi
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perf record -e task-clock:u -o - ${prog} > ${data}
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if ! perf inject ${inject_opt} -i ${data} | perf report -i - | grep -q ${sym}; then
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echo "Inject ${inject_opt} build-ids test [Failed - cannot find noploop function in pipe #5]"
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err=1
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return
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fi
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perf record -e task-clock:u -o - ${prog} > ${data}
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perf inject ${inject_opt} -i ${data} -o ${data2}
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if ! perf report -i ${data2} | grep -q ${sym}; then
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echo "Inject ${inject_opt} build-ids test [Failed - cannot find noploop function in pipe #6]"
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err=1
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return
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fi
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echo "Inject ${inject_opt} build-ids test [Success]"
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}
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test_record_report
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test_inject_bids -B
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test_inject_bids -b
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test_inject_bids --buildid-all
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test_inject_bids --mmap2-buildid-all
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cleanup
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exit $err
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