Messages in this thread | | | Subject | Re: [PATCH 05/61] perf tools: Introduce c2c_decode_stats function | From | Joe Mario <> | Date | Mon, 19 Sep 2016 14:04:10 -0400 |
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On 09/19/2016 01:15 PM, Nilay Vaish wrote: > On 19 September 2016 at 08:09, Jiri Olsa <jolsa@kernel.org> wrote: >> diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h >> index 7f69bf9d789d..27c6bb5abafb 100644 >> --- a/tools/perf/util/mem-events.h >> +++ b/tools/perf/util/mem-events.h >> @@ -2,6 +2,10 @@ >> #define __PERF_MEM_EVENTS_H >> >> #include <stdbool.h> >> +#include <stdint.h> >> +#include <stdio.h> >> +#include <linux/types.h> >> +#include "stat.h" >> >> struct perf_mem_event { >> bool record; >> @@ -33,4 +37,36 @@ int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info); >> >> int perf_script__meminfo_scnprintf(char *bf, size_t size, struct mem_info *mem_info); >> >> +struct c2c_stats { >> + int nr_entries; >> + >> + int locks; /* count of 'lock' transactions */ >> + int store; /* count of all stores in trace */ >> + int st_uncache; /* stores to uncacheable address */ >> + int st_noadrs; /* cacheable store with no address */ > > No address! Why would that happen?
[Resending without the html]
There are a small number of instructions that will trigger a perf mem event and will have no address associated with them. Three of them include mfence, wrmsr, and rdtsc. I believe there are at least two more.
> > > -- > Nilay >
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