lkml.org 
[lkml]   [2013]   [Nov]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRE: [PATCH] x86: Run checksumming in parallel accross multiple alu's
Date
From
> How would you suggest replacing the jumps in this case?  I agree it would be
> faster here, but I'm not sure how I would implement an increment using a single
> conditional move.

I think you need 3 instructions, move a 0, conditionally move a 1
then add. I suspect it won't be a win!

If you do 'win' it is probably very dependent on how the instructions
get scheduled onto the execution units - which will probably make
it very cpu type dependant.

David






\
 
 \ /
  Last update: 2013-11-01 18:01    [W:0.076 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site