Re: The results of my PostgreSQL/filesystem performance tests - Mailing list pgsql-performance

From Vivek Khera
Subject Re: The results of my PostgreSQL/filesystem performance tests
Date
Msg-id x78ypd1q9g.fsf@yertle.int.kciLink.com
Whole thread Raw
In response to The results of my PostgreSQL/filesystem performance tests  (Bill Moran <wmoran@potentialtech.com>)
Responses Re: The results of my PostgreSQL/filesystem performance tests
List pgsql-performance
>>>>> "SC" == Sean Chittenden <sean@chittenden.org> writes:

>> I need to step in and do 2 things:
SC> Thanks for posting that.  Let me know if you have any questions while
SC> doing your testing.  I've found that using 16K blocks on FreeBSD
SC> results in about an 8% speedup in writes to the database, fwiw.

ok.. ignore my prior request about how to set that... i missed you had
included a patch.

Any recommendations on newfs parameters for an overly large file
system used solely for Postgres?  Over 100Gb (with raid 10) or over
200Gb (with raid 5)?


--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Vivek Khera, Ph.D.                Khera Communications, Inc.
Internet: khera@kciLink.com       Rockville, MD       +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/

pgsql-performance by date:

Previous
From: Vivek Khera
Date:
Subject: Re: The results of my PostgreSQL/filesystem performance tests
Next
From: "scott.marlowe"
Date:
Subject: Re: opinion on RAID choice