Re: [PATCH 5.8 130/232] sched/uclamp: Protect uclamp fast path code with static key

2020-08-27 Thread Qais Yousef
On 08/27/20 17:55, Greg Kroah-Hartman wrote: > On Thu, Aug 27, 2020 at 02:53:31PM +0100, Qais Yousef wrote: > > On 08/20/20 11:19, Greg Kroah-Hartman wrote: > > > From: Qais Yousef > > > > > > [ Upstream commit 46609ce227039fd192e0ecc7d940bed587fd2c78 ] > > > > > > There is a report that when uc

Re: [PATCH 5.8 130/232] sched/uclamp: Protect uclamp fast path code with static key

2020-08-27 Thread Greg Kroah-Hartman
On Thu, Aug 27, 2020 at 02:53:31PM +0100, Qais Yousef wrote: > On 08/20/20 11:19, Greg Kroah-Hartman wrote: > > From: Qais Yousef > > > > [ Upstream commit 46609ce227039fd192e0ecc7d940bed587fd2c78 ] > > > > There is a report that when uclamp is enabled, a netperf UDP test > > regresses compared

Re: [PATCH 5.8 130/232] sched/uclamp: Protect uclamp fast path code with static key

2020-08-27 Thread Qais Yousef
On 08/20/20 11:19, Greg Kroah-Hartman wrote: > From: Qais Yousef > > [ Upstream commit 46609ce227039fd192e0ecc7d940bed587fd2c78 ] > > There is a report that when uclamp is enabled, a netperf UDP test > regresses compared to a kernel compiled without uclamp. > > https://lore.kernel.org/lkml/2020

[PATCH 5.8 130/232] sched/uclamp: Protect uclamp fast path code with static key

2020-08-20 Thread Greg Kroah-Hartman
From: Qais Yousef [ Upstream commit 46609ce227039fd192e0ecc7d940bed587fd2c78 ] There is a report that when uclamp is enabled, a netperf UDP test regresses compared to a kernel compiled without uclamp. https://lore.kernel.org/lkml/20200529100806.ga3...@suse.de/ While investigating the root caus