Search Postgresql Archives

Re: Running PostgreSQL with ZFS ZIL

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Thu, Jul 2, 2015 at 10:56 AM, Joseph Kregloh <jkregloh@xxxxxxxxxxxxxx> wrote:
With my dataset I have been able to take advantage of the L2ARC. Currently using about 80GB on ARC and 260GB on L2ARC. With the ARC currently having the greater Hit ratio.

Did you tell postgres that the effective_cache_size = Shared Buffers + ARC? I don't include in postgres the L2ARC size as it is not really in memory.  Also, I lie to postgres about the random_page_cost and seq_page_cost and set them both to 0.3 since there is so much cached.

Set full_page_writes = off since ZFS already takes care of that for you, too.



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux