Re: High SYS CPU - need advise

On 11/20/2012 10:03 AM, Merlin Moncure wrote:

> Shared buffer manipulation changing contention is suggesting you're
> running into free list lock issues.  How many active backends/cores?

Oh, the reason I wanted to point it out was that we see a lot more than
CPU contention with higher shared_buffer settings. The scheduler starts
aggressively clearing out the file cache *and* freeing memory, driving
load way higher than it should be. That doesn't result in a very high
iowait, but all that page swapping sure isn't free.

--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604
312-444-8534
sthomas@optionshouse.com

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