Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set

2017-11-09 20:43+0800, Wanpeng Li: > 2017-11-07 4:26 GMT+08:00 Eduardo Valentin : > > Currently, the existing qspinlock implementation will fallback to > > test-and-set if the hypervisor has not set the PV_UNHALT flag. > > > > This patch gives the opportunity to guest kernels to select > > between

Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set

2017-11-09 10:53-0500, Pankaj Gupta: > > > > 2017-11-07 4:26 GMT+08:00 Eduardo Valentin : > > > Currently, the existing qspinlock implementation will fallback to > > > test-and-set if the hypervisor has not set the PV_UNHALT flag. > > > > > > This patch gives the opportunity to guest kernels to s

Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set

2017-11-09 17:17+0100, Peter Zijlstra: > On Thu, Nov 09, 2017 at 05:05:36PM +0100, Radim Krcmar wrote: > > 2017-11-09 10:53-0500, Pankaj Gupta: > > > 2] PV TLB should also behave as per option PV_DEDICATED for better > > > performance. > > > > Right, >

Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set

2017-11-09 18:28+0100, Peter Zijlstra: > On Thu, Nov 09, 2017 at 06:15:11PM +0100, Peter Zijlstra wrote: > > On Thu, Nov 09, 2017 at 06:12:41PM +0100, Peter Zijlstra wrote: > > > On Thu, Nov 09, 2017 at 05:45:23PM +0100, Radim Krcmar wrote: > > > > 2017-11

Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set

2017-11-09 18:12+0100, Peter Zijlstra: > On Thu, Nov 09, 2017 at 05:45:23PM +0100, Radim Krcmar wrote: > > 2017-11-09 17:17+0100, Peter Zijlstra: > > > On Thu, Nov 09, 2017 at 05:05:36PM +0100, Radim Krcmar wrote: > > > > 2017-11-09 10:53-0500, Pankaj Gupta: > >