Re: The results of my PostgreSQL/filesystem performance tests
От | Vivek Khera |
---|---|
Тема | Re: The results of my PostgreSQL/filesystem performance tests |
Дата | |
Msg-id | x7d6ep1qlz.fsf@yertle.int.kciLink.com обсуждение исходный текст |
Ответ на | The results of my PostgreSQL/filesystem performance tests (Bill Moran <wmoran@potentialtech.com>) |
Список | 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. Where/how does one set this? In postgresql.conf or on the file system or during compilation of postgres? I'm on FreeBSD 4.8 still. I've got a box right now on which I'm comparing the speed merits of hardware RAID10, RAID5, and RAID50 using a filesystem benchmark utility (bonnie++). If I have time I'm gonna try different striping block sizes. Right now I'm using 32k byte stripe size. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= 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/
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