I see something unusual and surprising for me: if I kldload aio for qemu's sake and then actually start qemu, I see that share of C2 in cx_usage is constantly dropping and then finally there is "too many short sleeps, backing off to C1". This is on i386 with stable/7 as of r188116. I am out of ideas. -- Andriy Gapon
On 2/26/09, Andriy Gapon <avg@icyb.net.ua> wrote:> > I see something unusual and surprising for me: if I kldload aio for qemu's > sake > and then actually start qemu, I see that share of C2 in cx_usage is > constantly > dropping and then finally there is "too many short sleeps, backing off to > C1". > > This is on i386 with stable/7 as of r188116. > > I am out of ideas.And qemu guest is? Perhaps you should try changing guest kern.hz sysctl setting. I dont think related comitt got MFC-ed to STABLE. -- Paul
> I see something unusual and surprising for me: if I kldload aio for > qemu's sake > and then actually start qemu, I see that share of C2 in cx_usage is > constantly > dropping and then finally there is "too many short sleeps, backing off > to C1". > > This is on i386 with stable/7 as of r188116.I've been running qemu w/ stable-7 with no problems. Could you paste the actual error messages as well as a full DMESG? # uname -a FreeBSD kkutzko 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Fri Oct 10 13:10:49 EDT 2008 server.local:/usr/obj/usr/src/sys/KK i386 # --- Kevin Systems Administrator http://www.stardothosting.com/linux-vps-hosting http://wiki.stardothosting.com