On Tuesday, 19 April 2011, Theo de Raadt <dera...@cvs.openbsd.org> wrote: > In the last two weeks we have commited a few things which significantly > speed up disk and network io. B i will mention two things. > > some of you can start cranking the kern.bufcachepercent sysctl to 90. > try it out. B be impressed, but don't report deadlocks or lockups; > however real crashes are worth knowing about. B the lockup situations > are largely understood and will be slowly worked out, which is why > this is not close to being the default. > > the other change is that interrupt servicing times have gone down > substantially. B there are some broken drivers we will need to find > and fix, so please watch your vmstat -i numbers carefully, and for > this circumstance, if you get machine lockups at boot please report > those very carefully in a PR (with an old working dmesg). > > thanks.
I've been cranking kern.bufcache to 90 since bob becks talk about hacking vfs a while back (video on YouTube) & not experienced any issues, I've recently sent my thinkpad back for repair work where they replaced the CPU fan, on return I installed a new snapshot last week & was surprised how fast the machine goes from booting to xdm. I had put this down to fan not working correctly previously but Im glad to hear it's changes in the os. Well done :) Sevan
