From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Fri, 17 Jul 2015 11:28:09 +0100 Subject: [PATCH v4 0/2] arm/arm64: KVM: Optimize arm64 fp/simd, saves 30-50% on exits In-Reply-To: <1437082178-11039-1-git-send-email-m.smarduch@samsung.com> References: <1437082178-11039-1-git-send-email-m.smarduch@samsung.com> Message-ID: <55A8D8B9.2050903@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 16/07/15 22:29, Mario Smarduch wrote: > Currently we save/restore fp/simd on each exit. The first patch optimizes arm64 > save/restore, we only do so on Guest access. hackbench and several lmbench > tests show anywhere from 30% to 50% of exits don't context switch the vfp/simd > registers. > > For second patch 32-bit handler is updated to keep exit handling consistent > with 64-bit code. This looks pretty good, I'll take these patches in for 4.3. Thanks, M. -- Jazz is not dead. It just smells funny...