On Nov 7, 2010, at 2:20 PM, Adam Kocoloski wrote: >> Also, with this patch I verified (on Solaris, with the 'zpool iostat >> 1' command) that when running a writes only test with relaximation >> (200 write processes), disk write activity is not continuous. Without >> this patch, there's continuous (every 1 second) write activity. > > I'm confused by this statement. You must be talking about relaximation runs > with delayed_commits = true, right? Why do you think you see larger > intervals between write activity with the optimization from COUCHDB-767? > Have you measured the time it takes to open the extra FD? In my tests that > was a sub-millisecond operation, but maybe you've uncovered something else.
Oh, now I understand - you're saying that some of the iostat reports come back empty. That's really bizarre. Adam
