On 5/22/2013 8:18 AM, Greg Smith wrote:
They can easily hit that number. Or they can do this:
Device: r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await svctm
%util
sdd 2702.80 19.40 19.67 0.16 14.91 273.68 71.74 0.37 100.00
sdd 2707.60 13.00 19.53 0.10 14.78 276.61 90.34 0.37 100.00
That's an Intel 710 being crushed by a random read database server
workload, unable to deliver even 3000 IOPS / 20MB/s. I have hours of
data like this from several servers.
This is interesting. Do you know what it is about the workload that
leads to the unusually low rps ?
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
