Tom Lane wrote:
Sorry, I was unclear: it's the age of your oldest transaction that
counts (measured by how many xacts started since it), not how many
cycles it's consumed or not.
With the 8.1 code it's possible for performance to degrade pretty badly
once the age of your oldest transaction exc
Tom Lane wrote:
We're seeing an average of 30,000 context-switches a sec. This problem
was much worse w/8.0 and got bearable with 8.1 but slowly resurfaced.
Is this from LWLock or spinlock contention? strace'ing a few backends
could tell the difference: look to see how many select(0,...) yo
Postgres 8.1.4
Slony 1.1.5
Linux manny 2.6.12-10-k7-smp #1 SMP Fri Apr 28 14:17:26 UTC 2006 i686
GNU/Linux
We're seeing an average of 30,000 context-switches a sec. This problem
was much worse w/8.0 and got bearable with 8.1 but slowly resurfaced.
Any ideas?
procs ---memory--