On Fri, 2012-04-13 at 10:42 -0700, Linus Torvalds wrote: > On Wed, Apr 11, 2012 at 9:59 AM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote: > > > > Ping. This scalability problem is still in 3.4-rc* and causes > > major slowdowns. > > Do you have numbers? > In a benchmark that does mmaped-read, there is a 28% speed up after getting rid of the counters. > > Can we please revert fix it or revert > > 556b27abf73833923d5cd4be80006292e1b31662 before release. > > That commit ID doesn't make any sense, and doesn't seem to have > anything to do with any statistics counters that your email talks > about. So regardless, you'd need to explain why that commit causes the > problems you talk about, I'm not going to revert a random commit that > doesn't even look what you describe. > > Ted? > > Linus -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
