From 74cd5815d9af6e6c4f3bcecfbc8e439f2fd7e6b1 Mon Sep 17 00:00:00 2001 From: Jin Yao Date: Thu, 21 Dec 2017 17:26:10 +0800 Subject: perf tool: Improve bash command line auto-complete for multiple events with comma perf has perf-completion.sh to define command line auto-completion in bash/zsh. For record/stat -e it works for single events, but isn't working when specifying multiple events with comma. It would be very useful if it could be fixed to make it easier by supporting multiple events, comma separated. With this patch, the result can be like this: 1. Support the events returned from 'perf list --raw-dump' root@skl:/tmp# perf stat -e cpu/cache cpu/cache-misses/ cpu/cache-references/ root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/branch- cpu/branch-instructions/ cpu/branch-misses/ root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/branch-i root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/branch-instructions/ 2. Support the events listed in /sys/bus/event_source/devices/cpu/events root@skl:/tmp# perf stat -e cycle cycle_activity.cycles_l1d_miss cycle_activity.stalls_l3_miss cycle_activity.cycles_l2_miss cycle_activity.stalls_mem_any cycle_activity.cycles_l3_miss cycle_activity.stalls_total cycle_activity.cycles_mem_any cycles-ct cycle_activity.stalls_l1d_miss cycles-t cycle_activity.stalls_l2_miss root@skl:/tmp# perf stat -e cycles- cycles-ct cycles-t root@skl:/tmp# perf stat -e cycles-t,cpu/c cpu/cache-misses/ cpu/cpu-cycles/ cpu/cycles-t/ cpu/cache-references/ cpu/cycles-ct/ root@skl:/tmp# perf stat -e cycles-t,cpu/cache- cpu/cache-misses/ cpu/cache-references/ root@skl:/tmp# perf stat -e cycles-t,cpu/cache-misses/ 3. Support the uppercase event which is with prefix "cpu/" root@skl:/tmp# perf stat -e cpu/c cpu/cache-misses/ cpu/cpu-cycles/ cpu/cycles-t/ cpu/cache-references/ cpu/cycles-ct/ root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/C cpu/CACHE-MISSES/ cpu/CPU-CYCLES/ cpu/CYCLES-T/ cpu/CACHE-REFERENCES/ cpu/CYCLES-CT/ root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/CACHE-REFERENCES/ Note that: a) This patch only supports bash. b) It doesn't support the cases like {},{} or {...,...}. Signed-off-by: Jin Yao Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jiri Olsa Cc: Kan Liang Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1513848370-8098-1-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/perf-completion.sh | 38 ++++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-) (limited to 'tools/perf/perf-completion.sh') diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh index 345f5d6e9ed5..d8310830a18b 100644 --- a/tools/perf/perf-completion.sh +++ b/tools/perf/perf-completion.sh @@ -162,8 +162,33 @@ __perf_main () # List possible events for -e option elif [[ $prev == @("-e"|"--event") && $prev_skip_opts == @(record|stat|top) ]]; then - evts=$($cmd list --raw-dump) - __perfcomp_colon "$evts" "$cur" + + local cur1=${COMP_WORDS[COMP_CWORD]} + local raw_evts=$($cmd list --raw-dump) + local arr s tmp result + + if [[ "$cur1" == */* && ${cur1#*/} =~ ^[A-Z] ]]; then + OLD_IFS="$IFS" + IFS=" " + arr=($raw_evts) + IFS="$OLD_IFS" + + for s in ${arr[@]} + do + if [[ "$s" == *cpu/* ]]; then + tmp=${s#*cpu/} + result=$result" ""cpu/"${tmp^^} + else + result=$result" "$s + fi + done + + evts=${result}+$(ls /sys/bus/event_source/devices/cpu/events) + else + evts=${raw_evts}+$(ls /sys/bus/event_source/devices/cpu/events) + fi + + __perfcomp_colon "$evts" "$cur1" else # List subcommands for perf commands if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched| @@ -246,11 +271,16 @@ fi type perf &>/dev/null && _perf() { + if [[ "$COMP_WORDBREAKS" != *,* ]]; then + COMP_WORDBREAKS="${COMP_WORDBREAKS}," + export COMP_WORDBREAKS + fi + local cur words cword prev if [ $preload_get_comp_words_by_ref = "true" ]; then - _get_comp_words_by_ref -n =: cur words cword prev + _get_comp_words_by_ref -n =:, cur words cword prev else - __perf_get_comp_words_by_ref -n =: cur words cword prev + __perf_get_comp_words_by_ref -n =:, cur words cword prev fi __perf_main } && -- cgit v1.2.3