mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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64eed019f3
Add -B option that lazily inserts mmap2 events thereby dropping all
mmap events without samples. This is similar to the behavior of -b
where only build_id events are inserted when a dso is accessed in a
sample.
File size savings can be significant in system-wide mode, consider:
$ perf record -g -a -o perf.data sleep 1
$ perf inject -B -i perf.data -o perf.new.data
$ ls -al perf.data perf.new.data
5147049 perf.data
2248493 perf.new.data
Give test coverage of the new option in pipe test.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Link: https://lore.kernel.org/r/20240909203740.143492-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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=$(mktemp /tmp/perf.data2.XXXXXX)
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prog="perf test -w noploop"
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err=0
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set -e
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cleanup() {
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rm -rf "${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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