Re: [PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-07 Thread Arnaldo Carvalho de Melo
Em Wed, Aug 07, 2013 at 04:24:23PM -0400, David Ahern escreveu: > On 8/7/13 3:27 PM, Arnaldo Carvalho de Melo wrote: > >Em Mon, Aug 05, 2013 at 09:41:36PM -0400, David Ahern escreveu: > >So 'perf trace' has a similar option: > > > >[acme@zoo linux]$ perf trace --help > > > > --duration >

Re: [PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-07 Thread David Ahern
On 8/7/13 3:27 PM, Arnaldo Carvalho de Melo wrote: Em Mon, Aug 05, 2013 at 09:41:36PM -0400, David Ahern escreveu: This is useful to spot high latency blips. It is normal for HLT reasons to have long exit times, so strip those from the threshold check. So 'perf trace' has a similar option:

Re: [PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-07 Thread Arnaldo Carvalho de Melo
Em Mon, Aug 05, 2013 at 09:41:36PM -0400, David Ahern escreveu: > This is useful to spot high latency blips. It is normal for HLT > reasons to have long exit times, so strip those from the threshold > check. So 'perf trace' has a similar option: [acme@zoo linux]$ perf trace --help

Re: [PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-07 Thread Arnaldo Carvalho de Melo
Em Mon, Aug 05, 2013 at 09:41:36PM -0400, David Ahern escreveu: This is useful to spot high latency blips. It is normal for HLT reasons to have long exit times, so strip those from the threshold check. So 'perf trace' has a similar option: [acme@zoo linux]$ perf trace --help SNIP

Re: [PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-07 Thread David Ahern
On 8/7/13 3:27 PM, Arnaldo Carvalho de Melo wrote: Em Mon, Aug 05, 2013 at 09:41:36PM -0400, David Ahern escreveu: This is useful to spot high latency blips. It is normal for HLT reasons to have long exit times, so strip those from the threshold check. So 'perf trace' has a similar option:

Re: [PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-07 Thread Arnaldo Carvalho de Melo
Em Wed, Aug 07, 2013 at 04:24:23PM -0400, David Ahern escreveu: On 8/7/13 3:27 PM, Arnaldo Carvalho de Melo wrote: Em Mon, Aug 05, 2013 at 09:41:36PM -0400, David Ahern escreveu: So 'perf trace' has a similar option: [acme@zoo linux]$ perf trace --help SNIP --duration float

[PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-05 Thread David Ahern
This is useful to spot high latency blips. It is normal for HLT reasons to have long exit times, so strip those from the threshold check. Signed-off-by: David Ahern Cc: Arnaldo Carvalho de Melo Cc: Ingo Molnar Cc: Frederic Weisbecker Cc: Peter Zijlstra Cc: Jiri Olsa Cc: Namhyung Kim Cc:

[PATCH 4/5] perf kvm: option to print events that exceed a threshold

2013-08-05 Thread David Ahern
This is useful to spot high latency blips. It is normal for HLT reasons to have long exit times, so strip those from the threshold check. Signed-off-by: David Ahern dsah...@gmail.com Cc: Arnaldo Carvalho de Melo a...@ghostprotocols.net Cc: Ingo Molnar mi...@kernel.org Cc: Frederic Weisbecker