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SubjectRe: [PATCH 3/8] perf report: Add --percentage option
Date
Hi Jiri,

On Thu, 20 Feb 2014 11:39:50 +0100, Jiri Olsa wrote:
> On Mon, Feb 10, 2014 at 11:47:20AM +0900, Namhyung Kim wrote:
>> The --percentage option is for controlling overhead percentage
>> displayed. It can only receive either of "relative" or "absolute".
>>
>> "relative" means it's relative to filtered entries only so that the
>> sum of shown entries will be always 100%. "absolute" means it retains
>> the original value before and after the filter is applied.
>
> SNIP
>
>> diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
>> index 78f4c92e9b73..714f3f00ea55 100644
>> --- a/tools/perf/ui/hist.c
>> +++ b/tools/perf/ui/hist.c
>> @@ -21,10 +21,13 @@ static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
>>
>> if (fmt_percent) {
>> double percent = 0.0;
>> + u64 total = hists->stats.total_period;
>>
>> - if (hists->stats.total_period)
>> - percent = 100.0 * get_field(he) /
>> - hists->stats.total_period;
>> + if (symbol_conf.filter_relative)
>> + total = hists->stats.total_filtered_period;
>> +
>> + if (total)
>> + percent = 100.0 * get_field(he) / total;
>>
>> ret = print_fn(hpp->buf, hpp->size, fmt, percent);
>> } else
>> @@ -41,6 +44,9 @@ static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
>> u64 period = get_field(pair);
>> u64 total = pair->hists->stats.total_period;
>>
>> + if (symbol_conf.filter_relative)
>> + total = pair->hists->stats.total_filtered_period;
>> +
>> if (!total)
>> continue;
>
> looks like we could use something like:
>
> perf_hists__total_period(hists)
> {
> u64 total = hists->stats.total_period;
>
> if (symbol_conf.filter_relative)
> total = hists->stats.total_filtered_period;
>
> return total;
> }
>
> probably on other places as well

Right! Will change.

Thanks,
Namhyung


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