Re: [LKP] [mutex] 871a6bb4916: -1.8% will-it-scale.per_process_ops, -98.3% will-it-scale.time.voluntary_context_switches, +209.6% will-it-scale.time.involuntary_context_switches

2015-02-16 Thread Peter Zijlstra
On Sun, Feb 15, 2015 at 03:46:54PM +0800, Huang Ying wrote: > FYI, we noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core > commit 871a6bb4916fef3123b6ff749b0dc82680fb0d2a ("mutex: In > mutex_spin_on_owner(), return true when owner

Re: [LKP] [mutex] 871a6bb4916: -1.8% will-it-scale.per_process_ops, -98.3% will-it-scale.time.voluntary_context_switches, +209.6% will-it-scale.time.involuntary_context_switches

2015-02-16 Thread Peter Zijlstra
On Sun, Feb 15, 2015 at 03:46:54PM +0800, Huang Ying wrote: FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core commit 871a6bb4916fef3123b6ff749b0dc82680fb0d2a (mutex: In mutex_spin_on_owner(), return true when owner changes)

[LKP] [mutex] 871a6bb4916: -1.8% will-it-scale.per_process_ops, -98.3% will-it-scale.time.voluntary_context_switches, +209.6% will-it-scale.time.involuntary_context_switches

2015-02-14 Thread Huang Ying
FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core commit 871a6bb4916fef3123b6ff749b0dc82680fb0d2a ("mutex: In mutex_spin_on_owner(), return true when owner changes") testbox/testcase/testparams:

[LKP] [mutex] 871a6bb4916: -1.8% will-it-scale.per_process_ops, -98.3% will-it-scale.time.voluntary_context_switches, +209.6% will-it-scale.time.involuntary_context_switches

2015-02-14 Thread Huang Ying
FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core commit 871a6bb4916fef3123b6ff749b0dc82680fb0d2a (mutex: In mutex_spin_on_owner(), return true when owner changes) testbox/testcase/testparams: