Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Alexei Starovoitov
On Mon, Apr 25, 2016 at 08:41:39PM -0300, Arnaldo Carvalho de Melo wrote: > > +int sysctl_perf_event_max_stack __read_mostly = PERF_MAX_STACK_DEPTH; > + > +static inline size_t perf_callchain_entry__sizeof(void) > +{ > + return (sizeof(struct perf_callchain_entry) + > +

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Alexei Starovoitov
On Mon, Apr 25, 2016 at 08:41:39PM -0300, Arnaldo Carvalho de Melo wrote: > > +int sysctl_perf_event_max_stack __read_mostly = PERF_MAX_STACK_DEPTH; > + > +static inline size_t perf_callchain_entry__sizeof(void) > +{ > + return (sizeof(struct perf_callchain_entry) + > +

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 02:59:49PM -0700, Alexei Starovoitov escreveu: > On Mon, Apr 25, 2016 at 05:17:50PM -0300, Arnaldo Carvalho de Melo wrote: > > Em Mon, Apr 25, 2016 at 01:06:48PM -0700, Alexei Starovoitov escreveu: > > > On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 02:59:49PM -0700, Alexei Starovoitov escreveu: > On Mon, Apr 25, 2016 at 05:17:50PM -0300, Arnaldo Carvalho de Melo wrote: > > Em Mon, Apr 25, 2016 at 01:06:48PM -0700, Alexei Starovoitov escreveu: > > > On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Alexei Starovoitov
On Mon, Apr 25, 2016 at 05:17:50PM -0300, Arnaldo Carvalho de Melo wrote: > Em Mon, Apr 25, 2016 at 01:06:48PM -0700, Alexei Starovoitov escreveu: > > On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo wrote: > > > Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Alexei Starovoitov
On Mon, Apr 25, 2016 at 05:17:50PM -0300, Arnaldo Carvalho de Melo wrote: > Em Mon, Apr 25, 2016 at 01:06:48PM -0700, Alexei Starovoitov escreveu: > > On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo wrote: > > > Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 01:06:48PM -0700, Alexei Starovoitov escreveu: > On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo wrote: > > Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo escreveu: > > > Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 01:06:48PM -0700, Alexei Starovoitov escreveu: > On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo wrote: > > Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo escreveu: > > > Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Alexei Starovoitov
On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo wrote: > Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de Melo escreveu: > > > Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Alexei Starovoitov
On Mon, Apr 25, 2016 at 04:22:29PM -0300, Arnaldo Carvalho de Melo wrote: > Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de Melo escreveu: > > > Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei Starovoitov escreveu: > > > right... and looking into it further, realized that the patch

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 01:27:06PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei Starovoitov escreveu: > > > right... and looking into it further, realized that the patch

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei Starovoitov escreveu: > > On Fri, Apr 22, 2016 at 04:05:31PM -0600, David Ahern wrote: > > > On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: > > > >+int

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Mon, Apr 25, 2016 at 01:14:25PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei Starovoitov escreveu: > > On Fri, Apr 22, 2016 at 04:05:31PM -0600, David Ahern wrote: > > > On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: > > > >+int

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei Starovoitov escreveu: > On Fri, Apr 22, 2016 at 04:05:31PM -0600, David Ahern wrote: > > On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: > > >+int sysctl_perf_event_max_stack __read_mostly = PERF_MAX_STACK_DEPTH; > > >+ > > >+static size_t

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-25 Thread Arnaldo Carvalho de Melo
Em Fri, Apr 22, 2016 at 03:18:08PM -0700, Alexei Starovoitov escreveu: > On Fri, Apr 22, 2016 at 04:05:31PM -0600, David Ahern wrote: > > On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: > > >+int sysctl_perf_event_max_stack __read_mostly = PERF_MAX_STACK_DEPTH; > > >+ > > >+static size_t

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-22 Thread Alexei Starovoitov
On Fri, Apr 22, 2016 at 04:05:31PM -0600, David Ahern wrote: > On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: > >Em Wed, Apr 20, 2016 at 04:04:12PM -0700, Alexei Starovoitov escreveu: > >>On Wed, Apr 20, 2016 at 07:47:30PM -0300, Arnaldo Carvalho de Melo wrote: > > > >>Nice. I like it. That's

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-22 Thread Alexei Starovoitov
On Fri, Apr 22, 2016 at 04:05:31PM -0600, David Ahern wrote: > On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: > >Em Wed, Apr 20, 2016 at 04:04:12PM -0700, Alexei Starovoitov escreveu: > >>On Wed, Apr 20, 2016 at 07:47:30PM -0300, Arnaldo Carvalho de Melo wrote: > > > >>Nice. I like it. That's

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-22 Thread David Ahern
On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: Em Wed, Apr 20, 2016 at 04:04:12PM -0700, Alexei Starovoitov escreveu: On Wed, Apr 20, 2016 at 07:47:30PM -0300, Arnaldo Carvalho de Melo wrote: Nice. I like it. That's a great approach to hard problem. Java guys will be happy too. Please

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-22 Thread David Ahern
On 4/22/16 2:52 PM, Arnaldo Carvalho de Melo wrote: Em Wed, Apr 20, 2016 at 04:04:12PM -0700, Alexei Starovoitov escreveu: On Wed, Apr 20, 2016 at 07:47:30PM -0300, Arnaldo Carvalho de Melo wrote: Nice. I like it. That's a great approach to hard problem. Java guys will be happy too. Please

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-22 Thread Alexei Starovoitov
On Fri, Apr 22, 2016 at 05:52:32PM -0300, Arnaldo Carvalho de Melo wrote: > Em Wed, Apr 20, 2016 at 04:04:12PM -0700, Alexei Starovoitov escreveu: > > On Wed, Apr 20, 2016 at 07:47:30PM -0300, Arnaldo Carvalho de Melo wrote: > > > Nice. I like it. That's a great approach to hard problem. > >

Re: [PATCH/RFC v2] perf core: Allow setting up max frame stack depth via sysctl

2016-04-22 Thread Alexei Starovoitov
On Fri, Apr 22, 2016 at 05:52:32PM -0300, Arnaldo Carvalho de Melo wrote: > Em Wed, Apr 20, 2016 at 04:04:12PM -0700, Alexei Starovoitov escreveu: > > On Wed, Apr 20, 2016 at 07:47:30PM -0300, Arnaldo Carvalho de Melo wrote: > > > Nice. I like it. That's a great approach to hard problem. > >