Re: [RFC] perf/core: what is exclude_idle supposed to do

On Fri, Apr 20, 2018 at 9:51 AM Vince Weaver wrote: > On Fri, 20 Apr 2018, Vince Weaver wrote: > > > AFAICT it works on Power and possibly ARM. > > > > at least some ARMs are a bit more honest about it than x86 > > > > ivybridge: > > Performance counter stats for

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Fri, Apr 20, 2018 at 9:51 AM Vince Weaver wrote: > On Fri, 20 Apr 2018, Vince Weaver wrote: > > > AFAICT it works on Power and possibly ARM. > > > > at least some ARMs are a bit more honest about it than x86 > > > > ivybridge: > > Performance counter stats for '/bin/ls': > >

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Fri, 20 Apr 2018, Vince Weaver wrote: > > AFAICT it works on Power and possibly ARM. > > at least some ARMs are a bit more honest about it than x86 > > ivybridge: > Performance counter stats for '/bin/ls': > 1,368,162 instructions > 1,368,162 instructions:I > >

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Fri, 20 Apr 2018, Vince Weaver wrote: > > AFAICT it works on Power and possibly ARM. > > at least some ARMs are a bit more honest about it than x86 > > ivybridge: > Performance counter stats for '/bin/ls': > 1,368,162 instructions > 1,368,162 instructions:I > >

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Fri, 20 Apr 2018, Peter Zijlstra wrote: > On Wed, Apr 18, 2018 at 11:10:20AM -0400, Vince Weaver wrote: > > On Tue, 17 Apr 2018, Jiri Olsa wrote: > > > > > On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > > > > Hi, > > > > > > > > I am trying to understand what the

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Fri, 20 Apr 2018, Peter Zijlstra wrote: > On Wed, Apr 18, 2018 at 11:10:20AM -0400, Vince Weaver wrote: > > On Tue, 17 Apr 2018, Jiri Olsa wrote: > > > > > On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > > > > Hi, > > > > > > > > I am trying to understand what the

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Wed, Apr 18, 2018 at 11:10:20AM -0400, Vince Weaver wrote: > On Tue, 17 Apr 2018, Jiri Olsa wrote: > > > On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > > > Hi, > > > > > > I am trying to understand what the exclude_idle event attribute is > > > supposed > > > to

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Wed, Apr 18, 2018 at 11:10:20AM -0400, Vince Weaver wrote: > On Tue, 17 Apr 2018, Jiri Olsa wrote: > > > On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > > > Hi, > > > > > > I am trying to understand what the exclude_idle event attribute is > > > supposed > > > to

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > Hi, > > I am trying to understand what the exclude_idle event attribute is supposed > to accomplish. > As per the definition in the header file: > > exclude_idle : 1, /* don't count when idle */ > > Naively, I thought it

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > Hi, > > I am trying to understand what the exclude_idle event attribute is supposed > to accomplish. > As per the definition in the header file: > > exclude_idle : 1, /* don't count when idle */ > > Naively, I thought it

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Tue, 17 Apr 2018, Jiri Olsa wrote: > On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > > Hi, > > > > I am trying to understand what the exclude_idle event attribute is supposed > > to accomplish. > > As per the definition in the header file: > > > > exclude_idle : 1,

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Tue, 17 Apr 2018, Jiri Olsa wrote: > On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > > Hi, > > > > I am trying to understand what the exclude_idle event attribute is supposed > > to accomplish. > > As per the definition in the header file: > > > > exclude_idle : 1,

Re: [RFC] perf/core: what is exclude_idle supposed to do

Em Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian escreveu: > Hi, > > I am trying to understand what the exclude_idle event attribute is supposed > to accomplish. > As per the definition in the header file: > > exclude_idle : 1, /* don't count when idle */ > > Naively, I thought

Re: [RFC] perf/core: what is exclude_idle supposed to do

Em Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian escreveu: > Hi, > > I am trying to understand what the exclude_idle event attribute is supposed > to accomplish. > As per the definition in the header file: > > exclude_idle : 1, /* don't count when idle */ > > Naively, I thought

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > Hi, > > I am trying to understand what the exclude_idle event attribute is supposed > to accomplish. > As per the definition in the header file: > > exclude_idle : 1, /* don't count when idle */ > > Naively, I thought it

Re: [RFC] perf/core: what is exclude_idle supposed to do

On Mon, Apr 16, 2018 at 10:04:53PM +, Stephane Eranian wrote: > Hi, > > I am trying to understand what the exclude_idle event attribute is supposed > to accomplish. > As per the definition in the header file: > > exclude_idle : 1, /* don't count when idle */ > > Naively, I thought it

[RFC] perf/core: what is exclude_idle supposed to do

Hi, I am trying to understand what the exclude_idle event attribute is supposed to accomplish. As per the definition in the header file: exclude_idle : 1, /* don't count when idle */ Naively, I thought it would simply stop the event when running in the context of the idle task (swapper,

[RFC] perf/core: what is exclude_idle supposed to do

Hi, I am trying to understand what the exclude_idle event attribute is supposed to accomplish. As per the definition in the header file: exclude_idle : 1, /* don't count when idle */ Naively, I thought it would simply stop the event when running in the context of the idle task (swapper,