Re: [PATCH 2/9] perf tools: Count periods of filtered entries separately
From: Namhyung Kim
Date: Tue Mar 18 2014 - 00:19:37 EST
On Tue, Mar 18, 2014 at 5:08 AM, Arnaldo Carvalho de Melo
> Em Mon, Mar 10, 2014 at 04:43:53PM +0900, Namhyung Kim escreveu:
>> @@ -749,9 +750,6 @@ int perf_event__preprocess_sample(const union perf_event *event,
>> if (thread == NULL)
>> return -1;
>> - if (thread__is_filtered(thread))
>> - goto out_filtered;
> What was the intent of moving this test from here...
>> dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
>> * Have we already created the kernel maps for this machine?
>> @@ -766,6 +764,10 @@ int perf_event__preprocess_sample(const union perf_event *event,
>> thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
>> sample->ip, al);
>> + if (thread__is_filtered(thread))
>> + al->filtered |= (1 << HIST_FILTER__THREAD);
> ... to here? At first I thought it was because thread__is_filtered()
> would check something that thread__find_addr_map() was doing, but no,
> its invariant, we can do it here or at the original site, so I'm keeping
> it there, ok?
It's because thread__find_addr_map() clears al->filtered, so filtering
with -d option won't work. Maybe we can move initialization of the
al->filtered upto this function.
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