Re: Spinlocks, yet again: analysis and proposed patches
Stephen Frost <sfrost@snowman.net>
From: Stephen Frost <sfrost@snowman.net>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Kurt Roeckx <kurt@roeckx.be>, pgsql-hackers@postgresql.org
Date: 2005-09-12T01:15:55Z
Lists: pgsql-hackers
* Tom Lane (tgl@sss.pgh.pa.us) wrote: > Kurt Roeckx <kurt@roeckx.be> writes: > > On Sun, Sep 11, 2005 at 05:59:49PM -0400, Tom Lane wrote: > >> I kinda suspect that the cmpb test is a no-op or loss on all > >> Intelish processors: > > > I think an important question is wether this is for x86_64 in > > general, of opteron specific. It could be that it's not the same > > on Intel's EM64Ts. > > Good point --- anyone have one to try? I've got one I can test on. I need to upgrade the kernel and some other things on it though (it's running 2.6.8 atm, and an older Debian/unstable which I should probably bring up to current). I'll work on it starting now and post results once I get some. Stephen