Re: [RFT PATCH v1 0/7] enable FPSIMD lazy save and restore for arm64

2013-09-27 Thread Catalin Marinas
On Fri, Sep 27, 2013 at 04:20:15PM +0100, Jiang Liu wrote: > The patchset actually includes three optimizations. > > The first one uses PF_USED_MATH to track whether the thread has > accessed FPSIMD registers since it has been created. If the thread > hasn't accessed FPSIMD registers since i

Re: [RFT PATCH v1 0/7] enable FPSIMD lazy save and restore for arm64

2013-09-27 Thread Jiang Liu
On 09/27/2013 07:23 PM, Will Deacon wrote: > On Fri, Sep 27, 2013 at 11:50:46AM +0100, Catalin Marinas wrote: >> On Fri, Sep 27, 2013 at 09:04:40AM +0100, Jiang Liu wrote: >>> From: Jiang Liu >>> >>> This patchset enables FPSIMD lazy save and restore for ARM64, you could >>> apply it against v3.12

Re: [RFT PATCH v1 0/7] enable FPSIMD lazy save and restore for arm64

2013-09-27 Thread Will Deacon
On Fri, Sep 27, 2013 at 11:50:46AM +0100, Catalin Marinas wrote: > On Fri, Sep 27, 2013 at 09:04:40AM +0100, Jiang Liu wrote: > > From: Jiang Liu > > > > This patchset enables FPSIMD lazy save and restore for ARM64, you could > > apply it against v3.12-rc2. > > > > We have done basic functional

Re: [RFT PATCH v1 0/7] enable FPSIMD lazy save and restore for arm64

2013-09-27 Thread Catalin Marinas
On Fri, Sep 27, 2013 at 09:04:40AM +0100, Jiang Liu wrote: > From: Jiang Liu > > This patchset enables FPSIMD lazy save and restore for ARM64, you could > apply it against v3.12-rc2. > > We have done basic functional tests on ARM fast model, but still lack > of detail performance benchmark on re