> On 2017/11/1 23:04, Liang, Kan wrote:
> >> On 2017/11/1 22:22, Liang, Kan wrote:
> On 2017/11/1 21:26, Liang, Kan wrote:
> >> The meaning of perf record's "overwrite" option and many
> "overwrite"
> >> in source code are not clear. In perf's code, the 'overwrite' has
> >> 2
> >>
On 2017/11/1 23:04, Liang, Kan wrote:
On 2017/11/1 22:22, Liang, Kan wrote:
On 2017/11/1 21:26, Liang, Kan wrote:
The meaning of perf record's "overwrite" option and many "overwrite"
in source code are not clear. In perf's code, the 'overwrite' has 2
meanings:
1. Make ringbuffer readonl
> On 2017/11/1 22:22, Liang, Kan wrote:
> >> On 2017/11/1 21:26, Liang, Kan wrote:
> The meaning of perf record's "overwrite" option and many "overwrite"
> in source code are not clear. In perf's code, the 'overwrite' has 2
> meanings:
> 1. Make ringbuffer readonly (perf_evlist__m
On 2017/11/1 22:22, Liang, Kan wrote:
On 2017/11/1 21:26, Liang, Kan wrote:
The meaning of perf record's "overwrite" option and many "overwrite"
in source code are not clear. In perf's code, the 'overwrite' has 2 meanings:
1. Make ringbuffer readonly (perf_evlist__mmap_ex's argument).
2.
> On 2017/11/1 21:26, Liang, Kan wrote:
> >> The meaning of perf record's "overwrite" option and many "overwrite"
> >> in source code are not clear. In perf's code, the 'overwrite' has 2
> >> meanings:
> >> 1. Make ringbuffer readonly (perf_evlist__mmap_ex's argument).
> >> 2. Set evsel's "bac
On 2017/11/1 21:26, Liang, Kan wrote:
The meaning of perf record's "overwrite" option and many "overwrite" in
source code are not clear. In perf's code, the 'overwrite' has 2 meanings:
1. Make ringbuffer readonly (perf_evlist__mmap_ex's argument).
2. Set evsel's "backward" attribute (in app
> The meaning of perf record's "overwrite" option and many "overwrite" in
> source code are not clear. In perf's code, the 'overwrite' has 2 meanings:
> 1. Make ringbuffer readonly (perf_evlist__mmap_ex's argument).
> 2. Set evsel's "backward" attribute (in apply_config_terms).
>
> perf record d
On Wed, Nov 01, 2017 at 06:17:26PM +0800, Wangnan (F) wrote:
>
>
> On 2017/11/1 18:03, Namhyung Kim wrote:
> > On Wed, Nov 01, 2017 at 05:53:27AM +, Wang Nan wrote:
> > > The meaning of perf record's "overwrite" option and many "overwrite" in
> > > source code are not clear. In perf's code, t
On 2017/11/1 18:03, Namhyung Kim wrote:
On Wed, Nov 01, 2017 at 05:53:27AM +, Wang Nan wrote:
The meaning of perf record's "overwrite" option and many "overwrite" in
source code are not clear. In perf's code, the 'overwrite' has 2 meanings:
1. Make ringbuffer readonly (perf_evlist__mmap_
On Wed, Nov 01, 2017 at 05:53:27AM +, Wang Nan wrote:
> The meaning of perf record's "overwrite" option and many "overwrite" in
> source code are not clear. In perf's code, the 'overwrite' has 2 meanings:
> 1. Make ringbuffer readonly (perf_evlist__mmap_ex's argument).
> 2. Set evsel's "backw
The meaning of perf record's "overwrite" option and many "overwrite" in
source code are not clear. In perf's code, the 'overwrite' has 2 meanings:
1. Make ringbuffer readonly (perf_evlist__mmap_ex's argument).
2. Set evsel's "backward" attribute (in apply_config_terms).
perf record doesn't use m
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