Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-30 Thread Stephane Eranian
On Fri, Aug 30, 2019 at 3:49 PM Namhyung Kim wrote: > > On Fri, Aug 30, 2019 at 4:35 PM Peter Zijlstra wrote: > > > > On Fri, Aug 30, 2019 at 12:46:51PM +0900, Namhyung Kim wrote: > > > Hi Peter, > > > > > > On Wed, Aug 28, 2019 at 6:45 PM Peter Zijlstra > > > wrote: > > > > > > > > On Wed,

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-30 Thread Namhyung Kim
On Fri, Aug 30, 2019 at 4:35 PM Peter Zijlstra wrote: > > On Fri, Aug 30, 2019 at 12:46:51PM +0900, Namhyung Kim wrote: > > Hi Peter, > > > > On Wed, Aug 28, 2019 at 6:45 PM Peter Zijlstra wrote: > > > > > > On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > > > > To support cgroup

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-30 Thread Peter Zijlstra
On Fri, Aug 30, 2019 at 12:46:51PM +0900, Namhyung Kim wrote: > Hi Peter, > > On Wed, Aug 28, 2019 at 6:45 PM Peter Zijlstra wrote: > > > > On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > > > To support cgroup tracking, add CGROUP event to save a link between > > > cgroup path

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-29 Thread Namhyung Kim
Hi Tejun, On Wed, Aug 28, 2019 at 11:48 PM Tejun Heo wrote: > > Hello, Namhyung. > > On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > > + * struct { > > + * struct perf_event_headerheader; > > + * u64 ino; > > + *

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-29 Thread Namhyung Kim
Hi Peter, On Wed, Aug 28, 2019 at 6:45 PM Peter Zijlstra wrote: > > On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > > To support cgroup tracking, add CGROUP event to save a link between > > cgroup path and inode number. The attr.cgroup bit was also added to > > enable cgroup

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-28 Thread Tejun Heo
Hello, Namhyung. On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > + * struct { > + * struct perf_event_headerheader; > + * u64 ino; > + * u64 path_len; > + * char

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-28 Thread Arnaldo Carvalho de Melo
Em Wed, Aug 28, 2019 at 11:44:59AM +0200, Peter Zijlstra escreveu: > On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > > To support cgroup tracking, add CGROUP event to save a link between > > cgroup path and inode number. The attr.cgroup bit was also added to > > enable cgroup

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-28 Thread Peter Zijlstra
On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > To support cgroup tracking, add CGROUP event to save a link between > cgroup path and inode number. The attr.cgroup bit was also added to > enable cgroup tracking from userspace. > > This event will be generated when a new cgroup

Re: [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-28 Thread Peter Zijlstra
On Wed, Aug 28, 2019 at 04:31:22PM +0900, Namhyung Kim wrote: > To support cgroup tracking, add CGROUP event to save a link between > cgroup path and inode number. The attr.cgroup bit was also added to > enable cgroup tracking from userspace. > > This event will be generated when a new cgroup

[PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event

2019-08-28 Thread Namhyung Kim
To support cgroup tracking, add CGROUP event to save a link between cgroup path and inode number. The attr.cgroup bit was also added to enable cgroup tracking from userspace. This event will be generated when a new cgroup becomes active. Userspace might need to synthesize those events for