linux-kernel - Re: [PATCH v5 7/7] perf report: Sort by sampled cycles percent per block for tui

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Date:   Fri, 1 Nov 2019 22:07:33 +0800
From:   "Jin, Yao" <yao.jin@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v5 7/7] perf report: Sort by sampled cycles percent per
 block for tui



On 11/1/2019 4:34 PM, Jiri Olsa wrote:
> On Wed, Oct 30, 2019 at 02:04:30PM +0800, Jin Yao wrote:
> 
> SNIP
> 
>> diff --git a/tools/perf/ui/browsers/hists.h b/tools/perf/ui/browsers/hists.h
>> index 91d3e18b50aa..078f2f2c7abd 100644
>> --- a/tools/perf/ui/browsers/hists.h
>> +++ b/tools/perf/ui/browsers/hists.h
>> @@ -5,6 +5,7 @@
>>   #include "ui/browser.h"
>>   
>>   struct annotation_options;
>> +struct evsel;
>>   
>>   struct hist_browser {
>>   	struct ui_browser   b;
>> @@ -15,6 +16,7 @@ struct hist_browser {
>>   	struct pstack	    *pstack;
>>   	struct perf_env	    *env;
>>   	struct annotation_options *annotation_opts;
>> +	struct evsel	    *block_evsel;
> 
> you should be able to get the evsel from hists_to_evsel function
> 
> jirka
> 

Maybe we can't. The hists in hist_browser is set to block_hists (not the 
hists for evsel).

See block_hists_tui_browse,

int block_hists_tui_browse(struct block_hist *bh, struct evsel *evsel,
                           float min_percent)
{
        struct hists *hists = &bh->block_hists;
        struct hist_browser *browser;
        ......
        browser = hist_browser__new(hists);
        ......
}

So I have to pass the evsel in.

Thanks
Jin Yao