Re: [PATCH 0/2] perf: Allow closing siblings' file descriptors

2020-08-06 Thread peterz
On Thu, Aug 06, 2020 at 09:15:08AM +0300, Adrian Hunter wrote: > On 8/07/20 6:16 pm, Alexander Shishkin wrote: > > Hi guys, > > > > I've been looking at reducing the number of open file descriptors per perf > > session. If we retain one descriptor per event, in a large group they add > > up. At th

Re: [PATCH 0/2] perf: Allow closing siblings' file descriptors

2020-08-05 Thread Adrian Hunter
On 8/07/20 6:16 pm, Alexander Shishkin wrote: > Hi guys, > > I've been looking at reducing the number of open file descriptors per perf > session. If we retain one descriptor per event, in a large group they add > up. At the same time, we're not actually using them for anything after the > SET_OUT

Re: [PATCH 0/2] perf: Allow closing siblings' file descriptors

2020-07-09 Thread Alexey Budankov
Hi Alex, On 08.07.2020 18:16, Alexander Shishkin wrote: > Hi guys, > > I've been looking at reducing the number of open file descriptors per perf > session. If we retain one descriptor per event, in a large group they add > up. At the same time, we're not actually using them for anything after th

[PATCH 0/2] perf: Allow closing siblings' file descriptors

2020-07-08 Thread Alexander Shishkin
Hi guys, I've been looking at reducing the number of open file descriptors per perf session. If we retain one descriptor per event, in a large group they add up. At the same time, we're not actually using them for anything after the SET_OUTPUT and maybe SET_FILTER ioctls. So, this series is a stab