Messages in this thread | | | Date | Tue, 27 Jan 2009 00:24:22 -0800 | From | Jeremy Fitzhardinge <> | Subject | Re: lmbench lat_mmap slowdown with CONFIG_PARAVIRT |
| |
Ingo Molnar wrote: > This is a very serious paravirt_ops slowdown affecting the native kernel's > performance to the tune of 5-10% in certain workloads. > > It's been about 2 years ago that paravirt_ops went upstream, when you told > us that something like this would never happen, that paravirt_ops is > designed so flexibly that it will never hinder the native kernel - and if > it does it will be easy to fix it. Now is the time to fulfill that > promise. >
Yep, working on it.
J
| |