> Again, the facts are that on my latest round of testing I got a > latency of 1.4us with and without X86_PAT which went down to 1.1us > when applying your patch on top of a X86_PAT config. Even if I'm doing > something wrong, I still want to see that we understand each > other... so please let me know if you still don't understand me.
Those results make sense. The only thing you said that I don't understand: > I noted that I have CONFIG_MTRR=y so maybe this can explain the nice latency > even without setting X86_PAT? But you are getting the worse latency without X86_PAT -- you need X86_PAT and a patch to use PAT in mlx4_ib to get better latency, which is as I expect. So I'm not sure why you talk about "nice" latency without X86_PAT. - R. _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
