Hello, > Can you run oprofile on the older kernel, so that we can compare and see > where the time is spent? > Looks like over 7% of the time is spent in s_lock, which suggests some change > in behavior in context switching or something like that, but let's see what > the old profile looks like.
I grabbed the 2.6.28.2 as a loaner from prod boxes I had around, may take a while to do that again. Will see if I can get some nehalem loaners (or do these tests at other environment) to do more modern hardware comparison. Domas -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
