On Fri, Jul 29, 2016 at 8:34 PM, Wangnan (F) wrote:
>
>
> On 2016/7/30 2:05, Brendan Gregg wrote:
>>
>> On Tue, Jul 19, 2016 at 4:20 PM, Brendan Gregg wrote:
>>>
>>> When perf is performing hrtimer-based sampling, this tracepoint can be
>>> used
>>> by BPF to run additional logic on each sample.
On 2016/7/30 2:05, Brendan Gregg wrote:
On Tue, Jul 19, 2016 at 4:20 PM, Brendan Gregg wrote:
When perf is performing hrtimer-based sampling, this tracepoint can be used
by BPF to run additional logic on each sample. For example, BPF can fetch
stack traces and frequency count them in kernel c
On Fri, Jul 29, 2016 at 12:21 PM, Arnaldo Carvalho de Melo
wrote:
> Em Tue, Jul 19, 2016 at 11:20:48PM +, Brendan Gregg escreveu:
>> When perf is performing hrtimer-based sampling, this tracepoint can be used
>> by BPF to run additional logic on each sample. For example, BPF can fetch
>> stack
Em Tue, Jul 19, 2016 at 11:20:48PM +, Brendan Gregg escreveu:
> When perf is performing hrtimer-based sampling, this tracepoint can be used
> by BPF to run additional logic on each sample. For example, BPF can fetch
> stack traces and frequency count them in kernel context, for an efficient
> p
On Tue, Jul 19, 2016 at 4:20 PM, Brendan Gregg wrote:
> When perf is performing hrtimer-based sampling, this tracepoint can be used
> by BPF to run additional logic on each sample. For example, BPF can fetch
> stack traces and frequency count them in kernel context, for an efficient
> profiler.
A
When perf is performing hrtimer-based sampling, this tracepoint can be used
by BPF to run additional logic on each sample. For example, BPF can fetch
stack traces and frequency count them in kernel context, for an efficient
profiler.
Signed-off-by: Brendan Gregg
Cc: Alexei Starovoitov
Cc: Wang N
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