On Wed, Feb 15, 2012 at 16:14, Bruce Momjian <br...@momjian.us> wrote: > On Wed, Feb 15, 2012 at 09:54:04AM +0100, Magnus Hagander wrote: >> On Wed, Feb 15, 2012 at 02:23, Bruce Momjian <br...@momjian.us> wrote: >> > On Wed, Feb 15, 2012 at 01:35:05AM +0200, Marko Kreen wrote: >> >> On Tue, Feb 14, 2012 at 05:59:06PM -0500, Tom Lane wrote: >> >> > Bruce Momjian <br...@momjian.us> writes: >> >> > > On Mon, Feb 13, 2012 at 08:28:03PM -0500, Tom Lane wrote: >> >> > >> +1, I was about to suggest the same thing. Running any of these >> >> > >> tests >> >> > >> for a fixed number of iterations will result in drastic degradation >> >> > >> of >> >> > >> accuracy as soon as the machine's behavior changes noticeably from >> >> > >> what >> >> > >> you were expecting. Run them for a fixed time period instead. Or >> >> > >> maybe >> >> > >> do a few, then check elapsed time and estimate a number of >> >> > >> iterations to >> >> > >> use, if you're worried about the cost of doing gettimeofday after >> >> > >> each >> >> > >> write. >> >> > >> >> > > Good idea, and it worked out very well. I changed the -o loops >> >> > > parameter to -s seconds which calls alarm() after (default) 2 seconds, >> >> > > and then once the operation completes, computes a duration per >> >> > > operation. >> >> > >> >> > I was kind of wondering how portable alarm() is, and the answer >> >> > according to the buildfarm is that it isn't. >> >> >> >> I'm using following simplistic alarm() implementation for win32: >> >> >> >> https://github.com/markokr/libusual/blob/master/usual/signal.c#L21 >> >> >> >> this works with fake sigaction()/SIGALARM hack below - to remember >> >> function to call. >> >> >> >> Good enough for simple stats printing, and avoids win32-specific >> >> code spreading around. >> > >> > Wow, I wasn't even aware this compiled in Win32; I thought it was >> > ifdef'ed out. Anyway, I am looking at SetTimer as a way of making this >> > work. (Me wonders if the GoGrid Windows images have compilers.) >> >> They don't, since most of the compilers people would ask for don't >> allow that kind of redistribution. > > Shame. > >> Ping me on im if you need one preconfigured, though... > > How do you do that? Also, once you create a Windows VM on a public > cloud, how do you connect to it? SSH?
rdesktop. -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
