Tom Lane wrote:
Hmmm ... AFAICS this must mean that flushing the WAL data to disk
at transaction commit time takes (most of) 20 msec on your hardware.
Which still seems high --- on most modern disks that'd be at least two
disk revolutions, maybe more. What's the disk hardware you're testing
on, particularly its RPM spec?
I actually ran the test on my laptop. It has an Ultra ATA/100 drive
(5400 rpm). The test was just a quickie to show some data from the
probes. I'll collect and share data from the T2000 server later.
Regards,
-Robert
