Re: [PATCH v3 00/11] perf stat: Enable '--per-thread' on all thread

From: Jin, Yao
Date: Wed Nov 29 2017 - 19:20:24 EST




On 11/29/2017 11:16 PM, Jiri Olsa wrote:
On Wed, Nov 29, 2017 at 08:05:47PM +0800, Jin Yao wrote:
v3:
---
Update according to Jiri's comments. The major modifications are:

1. Fix the crash issue when performing the git bisect.
Move the removing of runtime_saved_values to the switching point
(perf util: Remove a set of shadow stats static variables).

2. Still add struct perf_stat_config::*stats|stats_num in earlier
patch because 'stats' will be used in
'perf util: Update and print per-thread shadow stats'.
If it's moved to 'perf stat: Allocate shadow stats buffer for threads',
the compilation would be failed.

sure, that's why also that hunk from 'perf util: Update and print per-thread shadow stats'
needs to be moved to 'perf stat: Allocate shadow stats buffer for threads'

this one:

+ if (stat_config.stats)
+ stat = &stat_config.stats[thread];
+ else
+ stat = &rt_stat;
+
+ printout(thread, 0, counter, uval, prefix, run, ena, 1.0,
+ stat);

you already did that in 'perf stat: Allocate shadow stats buffer for threads' for:

+ if (config->aggr_mode == AGGR_THREAD) {
+ if (config->stats)
+ perf_stat__update_shadow_stats(evsel,
+ count->val, 0, &config->stats[thread]);
+ else
+ perf_stat__update_shadow_stats(evsel,
+ count->val, 0, &rt_stat);
+ }


thanks,
jirka


OK, I will move this code from 'perf util: Update and print per-thread shadow stats' to 'perf stat: Allocate shadow stats buffer for threads'.

And I will also add struct perf_stat_config::*stats|stats_num in 'perf stat: Allocate shadow stats buffer for threads'.

I will send v4 soon.

Thanks
Jin Yao