RE: OCFS is as fast as raw?

I missed his presentation, tragically (seriously tragically, I've been wanting to meet him in person for quite a while).

However, I have not found OCFS to be as fast as raw. In any capacity. That being said, OCFS 2.0, due out Real Soon Now (next few weeks), is supposed to be much better. As soon as it comes out, we'll be beating it up in our lab, so if anyone is interested in the results, let me know off-list and I'll see what I can put together.

Thanks,
Matt

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Matthew Zito
GridApp Systems
Email: mzito_at_gridapp.com
Cell: 646-220-3551
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> -----Original Message-----

> From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com] On 

> Behalf Of Jesse, Rich

> Sent: Thursday, September 18, 2003 6:25 PM

> To: Multiple recipients of list ORACLE-L

> Subject: OCFS is as fast as raw?

> 

> 

> After perusing the OOW'03 presentations, I see that Win 

> Coekaerts' presentation says "IO throughput [on OCFS] is 

> equivalent to RAW IO".  Has anyone seen this behavior?  It's 

> entirely possible (probable!) that I didn't do something 

> correctly, given the bastardization I needed to do (installed 

> on RH9 because AS2.1 won't support our hardware), but I saw 

> OCFS performance about 40-50 times slower than RAW (rough estimate).

> 

> I didn't implement the OCFS fileutils as I wasn't going to 

> manually do anything with the files.  Surely the oracle 

> binary doesn't call dd, cp, and mv directly for it's file 

> management and data I/O, does it?  Is it the "comm_voting=1" 

> in the /etc/ocfs.conf file?  Or is it more likely to be async 

> IO (my guess)?  Or a combo?

> 

> Anyone with experience on this?  Anyone attend Mr C's presentation?

> 

> Thanks,

> Rich

> 

> Rich Jesse                           System/Database Administrator

> rjesse_at_qtiworld.com                  Quad/Tech Inc, Sussex, WI USA

> -- 

> Please see the official ORACLE-L FAQ: http://www.orafaq.net

> -- 

> Author: Jesse, Rich

>   INET: Rich.Jesse_at_qtiworld.com

> 

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