Re: random_page_cost vs ssd? - Mailing list pgsql-performance

From hubert depesz lubaczewski
Subject Re: random_page_cost vs ssd?
Date
Msg-id 20090311193227.GA19182@depesz.com
Whole thread Raw
In response to Re: random_page_cost vs ssd?  (Scott Carey <scott@richrelevance.com>)
List pgsql-performance
On Wed, Mar 11, 2009 at 12:28:56PM -0700, Scott Carey wrote:
> Google > “linux drop_caches” first result:
> http://www.linuxinsight.com/proc_sys_vm_drop_caches.html
> To be sure a test is going to disk and not file system cache for everything in linux, run:
> ‘sync; cat 3 > /proc/sys/vm/drop_caches’

well. the url you showed tells to do: echo 3 > ...
cat 3 is "slightly" different.

Best regards,

depesz

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