From: "tip-bot2 for Jin Yao" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Jin Yao <yao.jin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>, x86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [tip: perf/urgent] perf report/top TUI: Support hotkeys to let user select any event for sorting
Date: Sat, 04 Apr 2020 08:42:01 -0000 [thread overview]
Message-ID: <158598972128.28353.6234743869854468419.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20200220013616.19916-4-yao.jin@linux.intel.com>
The following commit has been merged into the perf/urgent branch of tip:
Commit-ID: dbddf17474411f5725fc76fc7e507410f0d4077f
Gitweb: https://git.kernel.org/tip/dbddf17474411f5725fc76fc7e507410f0d4077f
Author: Jin Yao <yao.jin@linux.intel.com>
AuthorDate: Thu, 20 Feb 2020 09:36:16 +08:00
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitterDate: Tue, 24 Mar 2020 09:37:27 -03:00
perf report/top TUI: Support hotkeys to let user select any event for sorting
When performing "perf report --group", it shows the event group information
together. In previous patch, we have supported a new option "--group-sort-idx"
to sort the output by the event at the index n in event group.
It would be nice if we can use a hotkey in browser to select a event
to sort.
For example,
# perf report --group
Samples: 12K of events 'cpu/instructions,period=2000003/, cpu/cpu-cycles,period=200003/, ...
Overhead Command Shared Object Symbol
92.19% 98.68% 0.00% 93.30% mgen mgen [.] LOOP1
3.12% 0.29% 0.00% 0.16% gsd-color libglib-2.0.so.0.5600.4 [.] 0x0000000000049515
1.56% 0.03% 0.00% 0.04% gsd-color libglib-2.0.so.0.5600.4 [.] 0x00000000000494b7
1.56% 0.01% 0.00% 0.00% gsd-color libglib-2.0.so.0.5600.4 [.] 0x00000000000494ce
1.56% 0.00% 0.00% 0.00% mgen [kernel.kallsyms] [k] task_tick_fair
0.00% 0.15% 0.00% 0.04% perf [kernel.kallsyms] [k] smp_call_function_single
0.00% 0.13% 0.00% 6.08% swapper [kernel.kallsyms] [k] intel_idle
0.00% 0.03% 0.00% 0.00% gsd-color libglib-2.0.so.0.5600.4 [.] g_main_context_check
0.00% 0.03% 0.00% 0.00% swapper [kernel.kallsyms] [k] apic_timer_interrupt
0.00% 0.03% 0.00% 0.00% swapper [kernel.kallsyms] [k] check_preempt_curr
When user press hotkey '3' (event index, starting from 0), it indicates
to sort output by the forth event in group.
Samples: 12K of events 'cpu/instructions,period=2000003/, cpu/cpu-cycles,period=200003/, ...
Overhead Command Shared Object Symbol
92.19% 98.68% 0.00% 93.30% mgen mgen [.] LOOP1
0.00% 0.13% 0.00% 6.08% swapper [kernel.kallsyms] [k] intel_idle
3.12% 0.29% 0.00% 0.16% gsd-color libglib-2.0.so.0.5600.4 [.] 0x0000000000049515
0.00% 0.00% 0.00% 0.06% swapper [kernel.kallsyms] [k] hrtimer_start_range_ns
1.56% 0.03% 0.00% 0.04% gsd-color libglib-2.0.so.0.5600.4 [.] 0x00000000000494b7
0.00% 0.15% 0.00% 0.04% perf [kernel.kallsyms] [k] smp_call_function_single
0.00% 0.00% 0.00% 0.02% mgen [kernel.kallsyms] [k] update_curr
0.00% 0.00% 0.00% 0.02% mgen [kernel.kallsyms] [k] apic_timer_interrupt
0.00% 0.00% 0.00% 0.02% mgen [kernel.kallsyms] [k] native_apic_msr_eoi_write
0.00% 0.00% 0.00% 0.02% mgen [kernel.kallsyms] [k] __update_load_avg_se
v6:
---
Jiri provided a good improvement to eliminate unneeded refresh.
This improvement is added to v6.
v2:
---
1. Report warning at helpline when index is invalid.
2. Report warning at helpline when it's not group event.
3. Use "case '0' ... '9'" to refine the code
4. Split K_RELOAD implementation to another patch.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200220013616.19916-4-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/hists.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 9f3401f..95ac5e2 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2992,7 +2992,8 @@ static int perf_evsel__hists_browse(struct evsel *evsel, int nr_events,
"s Switch to another data file in PWD\n"
"t Zoom into current Thread\n"
"V Verbose (DSO names in callchains, etc)\n"
- "/ Filter symbol by name";
+ "/ Filter symbol by name\n"
+ "0-9 Sort by event n in group";
static const char top_help[] = HIST_BROWSER_HELP_COMMON
"P Print histograms to perf.hist.N\n"
"t Zoom into current Thread\n"
@@ -3053,6 +3054,31 @@ do_hotkey: // key came straight from options ui__popup_menu()
* go to the next or previous
*/
goto out_free_stack;
+ case '0' ... '9':
+ if (!symbol_conf.event_group ||
+ evsel->core.nr_members < 2) {
+ snprintf(buf, sizeof(buf),
+ "Sort by index only available with group events!");
+ helpline = buf;
+ continue;
+ }
+
+ if (key - '0' == symbol_conf.group_sort_idx)
+ continue;
+
+ symbol_conf.group_sort_idx = key - '0';
+
+ if (symbol_conf.group_sort_idx >= evsel->core.nr_members) {
+ snprintf(buf, sizeof(buf),
+ "Max event group index to sort is %d (index from 0 to %d)",
+ evsel->core.nr_members - 1,
+ evsel->core.nr_members - 1);
+ helpline = buf;
+ continue;
+ }
+
+ key = K_RELOAD;
+ goto out_free_stack;
case 'a':
if (!hists__has(hists, sym)) {
ui_browser__warning(&browser->b, delay_secs * 2,
next prev parent reply other threads:[~2020-04-04 8:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 1:36 [PATCH v7 0/3] perf report: Support sorting by a given event in group Jin Yao
2020-02-20 1:36 ` [PATCH v7 1/3] perf report: Change sort order by a specified " Jin Yao
2020-03-18 18:45 ` Arnaldo Carvalho de Melo
2020-03-19 1:14 ` Jin, Yao
2020-04-04 8:42 ` [tip: perf/urgent] perf report: Allow specifying event to be used as sort key in --group output tip-bot2 for Jin Yao
2020-02-20 1:36 ` [PATCH v7 2/3] perf report: Support a new key to reload the browser Jin Yao
2020-03-18 18:52 ` Arnaldo Carvalho de Melo
2020-03-19 1:40 ` Jin, Yao
2020-04-04 8:42 ` [tip: perf/urgent] " tip-bot2 for Jin Yao
2020-02-20 1:36 ` [PATCH v7 3/3] perf report: support hotkey to let user select any event for sorting Jin Yao
2020-04-04 8:42 ` tip-bot2 for Jin Yao [this message]
2020-03-18 19:01 ` [PATCH v7 0/3] perf report: Support sorting by a given event in group Arnaldo Carvalho de Melo
2020-03-18 19:03 ` Arnaldo Carvalho de Melo
2020-03-18 19:08 ` Arnaldo Carvalho de Melo
2020-03-19 1:42 ` Jin, Yao
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