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Message-ID: <085edaa4-e8f2-f501-5ffc-4d07b4ea85ad@linux.intel.com>
Date: Tue, 6 Aug 2019 19:39:20 +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 v2] perf diff: Report noisy for cycles diff
On 8/6/2019 4:34 PM, Jiri Olsa wrote:
> On Thu, Jul 25, 2019 at 06:14:32AM +0800, Jin Yao wrote:
>
> SNIP
>
>> +}
>> +
>> double avg_stats(struct stats *stats)
>> {
>> return stats->mean;
>> diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
>> index 95b4de7a9d51..3448d319a220 100644
>> --- a/tools/perf/util/stat.h
>> +++ b/tools/perf/util/stat.h
>> @@ -8,14 +8,18 @@
>> #include <sys/time.h>
>> #include <sys/resource.h>
>> #include <sys/wait.h>
>> +#include <stdio.h>
>> #include "xyarray.h"
>> #include "rblist.h"
>> #include "perf.h"
>> #include "event.h"
>>
>> +#define NUM_SPARK_VALS 8 /* support spark line on first N items */
>> +
>> struct stats {
>> double n, mean, M2;
>> u64 max, min;
>> + unsigned long svals[NUM_SPARK_VALS];
>> };
>
> please do it without changing the 'struct stats', it's all
> over the place and diff would be the only user
>
> thanks
> jirka
>
OK, I see. I will save the svals[] in other struct.
Thanks
Jin Yao
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