From 668b8788f497b2386402daeca583d6300240d41d Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 17 Feb 2011 15:38:58 -0200 Subject: perf list: Allow filtering list of events The man page has the details, here are some examples: [root@emilia ~]# perf list *fault* *:*wait* List of pre-defined events (to be used in -e): page-faults OR faults [Software event] minor-faults [Software event] major-faults [Software event] alignment-faults [Software event] emulation-faults [Software event] radeon:radeon_fence_wait_begin [Tracepoint event] radeon:radeon_fence_wait_end [Tracepoint event] writeback:wbc_writeback_wait [Tracepoint event] writeback:wbc_balance_dirty_wait [Tracepoint event] writeback:writeback_congestion_wait [Tracepoint event] writeback:writeback_wait_iff_congested [Tracepoint event] sched:sched_wait_task [Tracepoint event] sched:sched_process_wait [Tracepoint event] sched:sched_stat_wait [Tracepoint event] sched:sched_stat_iowait [Tracepoint event] syscalls:sys_enter_epoll_wait [Tracepoint event] syscalls:sys_exit_epoll_wait [Tracepoint event] syscalls:sys_enter_epoll_pwait [Tracepoint event] syscalls:sys_exit_epoll_pwait [Tracepoint event] syscalls:sys_enter_rt_sigtimedwait [Tracepoint event] syscalls:sys_exit_rt_sigtimedwait [Tracepoint event] syscalls:sys_enter_waitid [Tracepoint event] syscalls:sys_exit_waitid [Tracepoint event] syscalls:sys_enter_wait4 [Tracepoint event] syscalls:sys_exit_wait4 [Tracepoint event] syscalls:sys_enter_waitpid [Tracepoint event] syscalls:sys_exit_waitpid [Tracepoint event] [root@emilia ~]# Suggested-by: Ingo Molnar Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-list.c | 43 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) (limited to 'tools/perf/builtin-list.c') diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index d88c6961274c..6313b6eb3ebb 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -5,6 +5,7 @@ * * Copyright (C) 2009, Thomas Gleixner * Copyright (C) 2008-2009, Red Hat Inc, Ingo Molnar + * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo */ #include "builtin.h" @@ -13,9 +14,47 @@ #include "util/parse-events.h" #include "util/cache.h" -int cmd_list(int argc __used, const char **argv __used, const char *prefix __used) +int cmd_list(int argc, const char **argv, const char *prefix __used) { setup_pager(); - print_events(); + + if (argc == 1) + print_events(NULL); + else { + int i; + + for (i = 1; i < argc; ++i) { + if (i > 1) + putchar('\n'); + if (strncmp(argv[i], "tracepoint", 10) == 0) + print_tracepoint_events(NULL, NULL); + else if (strcmp(argv[i], "hw") == 0 || + strcmp(argv[i], "hardware") == 0) + print_events_type(PERF_TYPE_HARDWARE); + else if (strcmp(argv[i], "sw") == 0 || + strcmp(argv[i], "software") == 0) + print_events_type(PERF_TYPE_SOFTWARE); + else if (strcmp(argv[i], "cache") == 0 || + strcmp(argv[i], "hwcache") == 0) + print_hwcache_events(NULL); + else { + char *sep = strchr(argv[i], ':'), *s; + int sep_idx; + + if (sep == NULL) { + print_events(argv[i]); + continue; + } + sep_idx = sep - argv[i]; + s = strdup(argv[i]); + if (s == NULL) + return -1; + + s[sep_idx] = '\0'; + print_tracepoint_events(s, s + sep_idx + 1); + free(s); + } + } + } return 0; } -- cgit v1.2.3