Em Fri, Dec 27, 2013 at 06:03:27PM -0500, Dongsheng Yang escreveu: > As what the usage showing, we can input a event_glob as an argument to list > all symbols. But it does not work well right now. > > Example: > # perf list kvmmmu > > List of pre-defined events (to be used in -e): > > This patch make it work well as follows.
It works: List of pre-defined events (to be used in -e): [root@zoo ~]# perf list kvmmmu*:* kvmmmu:kvm_mmu_pagetable_walk [Tracepoint event] kvmmmu:kvm_mmu_paging_element [Tracepoint event] kvmmmu:kvm_mmu_set_accessed_bit [Tracepoint event] kvmmmu:kvm_mmu_set_dirty_bit [Tracepoint event] kvmmmu:kvm_mmu_walker_error [Tracepoint event] kvmmmu:kvm_mmu_get_page [Tracepoint event] kvmmmu:kvm_mmu_sync_page [Tracepoint event] kvmmmu:kvm_mmu_unsync_page [Tracepoint event] kvmmmu:kvm_mmu_prepare_zap_page [Tracepoint event] kvmmmu:mark_mmio_spte [Tracepoint event] kvmmmu:handle_mmio_page_fault [Tracepoint event] kvmmmu:fast_page_fault [Tracepoint event] kvmmmu:kvm_mmu_invalidate_zap_all_pages [Tracepoint event] kvmmmu:check_mmio_spte [Tracepoint event] [root@zoo ~]# The documentation says, as you repeated above, that a glob can be provided, not a _substring_ :-) To achive a result similar to: [root@zoo ~]# perf list hw cpu-cycles OR cycles [Hardware event] instructions [Hardware event] cache-references [Hardware event] cache-misses [Hardware event] branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] stalled-cycles-frontend OR idle-cycles-frontend [Hardware event] ref-cycles [Hardware event] [root@zoo ~]# We could say that if no ':' is found in the provided string, and it doesn't matches one of the other classes, i.e. hw, sw, cache, etc, and it is the name of a tracepoint subsystem, then it would be equivalent to 'tracepoint_subsys:*', i.e. 'perf list skb' woud be equivalent to: [root@zoo ~]# perf list skb:* skb:kfree_skb [Tracepoint event] skb:consume_skb [Tracepoint event] skb:skb_copy_datagram_iovec [Tracepoint event] [root@zoo ~]# - Arnaldo > Verification: > # perf list kvmmmu > > List of pre-defined events (to be used in -e): > kvmmmu:kvm_mmu_pagetable_walk [Tracepoint event] > kvmmmu:kvm_mmu_paging_element [Tracepoint event] > kvmmmu:kvm_mmu_set_accessed_bit [Tracepoint event] > kvmmmu:kvm_mmu_set_dirty_bit [Tracepoint event] > kvmmmu:kvm_mmu_walker_error [Tracepoint event] > kvmmmu:kvm_mmu_get_page [Tracepoint event] > kvmmmu:kvm_mmu_sync_page [Tracepoint event] > kvmmmu:kvm_mmu_unsync_page [Tracepoint event] > kvmmmu:kvm_mmu_prepare_zap_page [Tracepoint event] > kvmmmu:mark_mmio_spte [Tracepoint event] > kvmmmu:handle_mmio_page_fault [Tracepoint event] > kvmmmu:fast_page_fault [Tracepoint event] > > Signed-off-by: Dongsheng Yang <[email protected]> > --- > tools/perf/util/parse-events.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c > index 094c28b..d887ea4 100644 > --- a/tools/perf/util/parse-events.c > +++ b/tools/perf/util/parse-events.c > @@ -1236,6 +1236,8 @@ void print_events(const char *event_glob, bool > name_only) > > print_pmu_events(event_glob, name_only); > > + print_tracepoint_events(event_glob, NULL, name_only); > + > if (event_glob != NULL) > return; > > @@ -1254,8 +1256,6 @@ void print_events(const char *event_glob, bool > name_only) > event_type_descriptors[PERF_TYPE_BREAKPOINT]); > printf("\n"); > } > - > - print_tracepoint_events(NULL, NULL, name_only); > } > > int parse_events__is_hardcoded_term(struct parse_events_term *term) > -- > 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
