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Re: [Qemu-trivial] [PATCH] arch_init.c: remove duplicate function


From: Paolo Bonzini
Subject: Re: [Qemu-trivial] [PATCH] arch_init.c: remove duplicate function
Date: Sun, 27 Apr 2014 10:48:09 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

Il 15/04/2014 01:55, Michael R. Hines ha scritto:
Paolo? I see that some of the block-migration code and the qemu-img code
is also
calling buffer_is_zero() - are you guys depending on the performance of any
buffer_is_zero() calls to use the vector-optimized version like
migration does?

Yes, definitely. Not to the point that we care about which functions are inlined, but the constant-factor improvement that comes for vectorization can have a noticeable impact.

Paolo



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