On 07/10/2015 12:40 PM, Michael Neuling wrote: > What's the performance impact of this? If you run this test with --fp, > --altivec or --vector what is the impact of adding this patch? > > http://ozlabs.org/~anton/junkcode/context_switch2.c > > eg > ./context_switch2 --fp 0 0
Please find the results here which looks similar with or without the patch being applied. (A) Floating point context switches (context_switch2 --fp 0 0) Without the patch With the patch ================= ============== 320216 323460 324596 318448 321206 316540 321308 316650 318904 316478 (B) AltiVec context switches (context_switch2 --altivec 0 0) Without the patch With the patch ================= ============== 352012 342028 345894 345156 354604 345534 354020 354714 353936 364814 (C) Vector context switches (context_switch2 --vector 0 0) Without the patch With the patch ================= ============== 354496 344296 361386 346822 361856 354932 344906 348722 343288 355014 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
