Messages in this thread | | | Date | Thu, 25 Apr 2019 13:45:03 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH RFC] x86 / CPU: Add cpu isolation flag for avoiding disturbance from aperfmperf IPI |
| |
On Thu, Apr 25, 2019 at 01:46:51PM +0300, Konstantin Khlebnikov wrote: > Sensitive workloads like DPDK polling do not like any interrupts. > > This patch adds flag 'freq' for boot option 'isolcpu': isolcpu=freq,<cpus>. > > Users like show_cpuinfo() fallback to frequency from generic cpufreq > policy if arch-specific requesting method returns 0.
Then don't touch that sysfs file?
I really hate having an option for just this.
| |