Messages in this thread | | | From | Namhyung Kim <> | Date | Sat, 1 Jul 2023 18:02:35 -0700 | Subject | Re: [PATCHSET 0/4] perf lock contention: Add CSV style output support (v2) |
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On Wed, Jun 28, 2023 at 1:01 PM Namhyung Kim <namhyung@kernel.org> wrote: > > Hello, > > This is v2 of perf lock contention CSV output change. > I've added --output option and a test case according to Ian's feedback. > > Sometimes we want to process the output by external programs. Let's add > the -x option to specify the field separator like perf stat. > > $ sudo ./perf lock con -ab -x, sleep 1 > # output: contended, total wait, max wait, avg wait, type, caller > 19, 194232, 21415, 10222, spinlock, process_one_work+0x1f0 > 15, 162748, 23843, 10849, rwsem:R, do_user_addr_fault+0x40e > 4, 86740, 23415, 21685, rwlock:R, ep_poll_callback+0x2d > 1, 84281, 84281, 84281, mutex, iwl_mvm_async_handlers_wk+0x135 > 8, 67608, 27404, 8451, spinlock, __queue_work+0x174 > 3, 58616, 31125, 19538, rwsem:W, do_mprotect_pkey+0xff > 3, 52953, 21172, 17651, rwlock:W, do_epoll_wait+0x248 > 2, 30324, 19704, 15162, rwsem:R, do_madvise+0x3ad > 1, 24619, 24619, 24619, spinlock, rcu_core+0xd4 > > The first line is a comment that shows the output format. Each line is > separated by the given string ("," in this case). The time is printed > in nsec without the unit so that it can be parsed easily. > > The code is available at 'perf/lock-con-csv-v2' branch in > > git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git > > Thanks, > Namhyung > > > Namhyung Kim (4): > perf lock: Remove stale comments > perf lock contention: Add -x option for CSV style output > perf lock contention: Add --output option > perf test: Test perf lock contention CSV output
Applied to perf-tools-next, thanks!
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