Re: [PATCH] perf tooling: Add 'perf bench syscall' benchmark

2016-02-03 Thread Ingo Molnar
* Andy Lutomirski wrote: > On Jan 31, 2016 11:42 PM, "Ingo Molnar" wrote: > > > > > > * r...@redhat.com wrote: > > > > > (v3: address comments raised by Frederic) > > > > > > Running with nohz_full introduces a fair amount of overhead. > > > Specifically, various things that are usually done f

Re: [PATCH] perf tooling: Add 'perf bench syscall' benchmark

2016-02-01 Thread Andy Lutomirski
On Jan 31, 2016 11:42 PM, "Ingo Molnar" wrote: > > > * r...@redhat.com wrote: > > > (v3: address comments raised by Frederic) > > > > Running with nohz_full introduces a fair amount of overhead. > > Specifically, various things that are usually done from the > > timer interrupt are now done at sy

[PATCH] perf tooling: Add 'perf bench syscall' benchmark

2016-01-31 Thread Ingo Molnar
* r...@redhat.com wrote: > (v3: address comments raised by Frederic) > > Running with nohz_full introduces a fair amount of overhead. > Specifically, various things that are usually done from the > timer interrupt are now done at syscall, irq, and guest > entry and exit times. > > However, som