From: David Ahern <dsahern@gmail.com>
To: acme@ghostprotocols.net, linux-kernel@vger.kernel.org, mingo@kernel.org
Cc: David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@redhat.com>,
Namhyung Kim <namhyung@kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>
Subject: [PATCH 07/19] perf top: Use new idle_sym check
Date: Wed, 7 Aug 2013 22:50:49 -0400 [thread overview]
Message-ID: <1375930261-77273-8-git-send-email-dsahern@gmail.com> (raw)
In-Reply-To: <1375930261-77273-1-git-send-email-dsahern@gmail.com>
Avoids strcmp processing each sample.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
---
tools/perf/builtin-top.c | 25 ++-----------------------
1 file changed, 2 insertions(+), 23 deletions(-)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 440c3b3..8eb0e3a 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -634,26 +634,9 @@ repeat:
return NULL;
}
-/* Tag samples to be skipped. */
-static const char *skip_symbols[] = {
- "intel_idle",
- "default_idle",
- "native_safe_halt",
- "cpu_idle",
- "enter_idle",
- "exit_idle",
- "mwait_idle",
- "mwait_idle_with_hints",
- "poll_idle",
- "ppc64_runlatch_off",
- "pseries_dedicated_idle_sleep",
- NULL
-};
-
static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym)
{
const char *name = sym->name;
- int i;
/*
* ppc64 uses function descriptors and appends a '.' to the
@@ -671,12 +654,8 @@ static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym)
strstr(name, "_text_end"))
return 1;
- for (i = 0; skip_symbols[i]; i++) {
- if (!strcmp(skip_symbols[i], name)) {
- sym->ignore = true;
- break;
- }
- }
+ if (symbol__is_idle(sym))
+ sym->ignore = true;
return 0;
}
--
1.7.10.1
next prev parent reply other threads:[~2013-08-08 2:51 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-08 2:50 [PATCH 00/19] perf sched: Add timehist subcommand David Ahern
2013-08-08 2:50 ` [PATCH 01/19] perf: sample after exit loses thread correlation - v3 David Ahern
2013-08-08 14:53 ` Arnaldo Carvalho de Melo
2013-08-08 20:42 ` David Ahern
2013-08-08 21:23 ` Arnaldo Carvalho de Melo
2013-08-08 2:50 ` [PATCH 02/19] perf sched: Simplify arguments to read_events David Ahern
2013-08-08 14:54 ` Arnaldo Carvalho de Melo
2013-08-15 7:55 ` [tip:perf/core] " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 03/19] perf sched: Remove thread lookup in sample handler David Ahern
2013-08-08 14:56 ` Arnaldo Carvalho de Melo
2013-08-15 7:55 ` [tip:perf/core] " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 04/19] perf sched: Remove sched_process_exit tracepoint David Ahern
2013-08-08 14:57 ` Arnaldo Carvalho de Melo
2013-08-15 7:55 ` [tip:perf/core] " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 05/19] perf sched: Remove sched_process_fork tracepoint David Ahern
2013-08-08 15:00 ` Arnaldo Carvalho de Melo
2013-08-15 7:55 ` [tip:perf/core] " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 06/19] perf symbol: Add optimization for idle kernel symbols David Ahern
2013-08-08 2:50 ` David Ahern [this message]
2013-08-08 15:06 ` [PATCH 07/19] perf top: Use new idle_sym check Arnaldo Carvalho de Melo
2013-08-09 2:49 ` David Ahern
2013-08-09 13:53 ` Arnaldo Carvalho de Melo
2013-08-08 2:50 ` [PATCH 08/19] perf symbol: Save vmlinux or kallsyms path loaded David Ahern
2013-08-08 15:08 ` Arnaldo Carvalho de Melo
2013-08-09 2:51 ` David Ahern
2013-08-08 2:50 ` [PATCH 09/19] perf tool: Simplify options to perf_evsel__print_ip David Ahern
2013-08-08 15:14 ` Arnaldo Carvalho de Melo
2013-08-15 7:55 ` [tip:perf/core] " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 10/19] perf tool: Add option to print stack trace on single line David Ahern
2013-08-15 7:55 ` [tip:perf/core] perf evsel: " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 11/19] perf tool: Add option to limit stack depth in callchain dumps David Ahern
2013-08-15 7:56 ` [tip:perf/core] perf evsel: " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 12/19] perf tool: Add support for exclude symbol list to symbol_conf David Ahern
2013-08-08 2:50 ` [PATCH 13/19] perf tool: Skip symbols in exclude list while printing callchain David Ahern
2013-08-08 2:50 ` [PATCH 14/19] perf sched: pass event to evsel handlers using data element David Ahern
2013-08-08 2:50 ` [PATCH 15/19] perf sched: Add timehist command David Ahern
2013-08-08 2:50 ` [PATCH 16/19] perf tool: Change perf_session__has_traces to actually check for tracepoints David Ahern
2013-08-08 15:16 ` Arnaldo Carvalho de Melo
2013-08-15 7:56 ` [tip:perf/core] perf session: " tip-bot for David Ahern
2013-08-08 2:50 ` [PATCH 17/19] perf sched timehist: Add support for context-switch event David Ahern
2013-08-08 2:51 ` [PATCH 18/19] perf sched timehist: Print all events in verbose mode David Ahern
2013-08-08 2:51 ` [PATCH 19/19] perf sched timehist: Add pid/tid option David Ahern
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