Re: [htdig-dev] Compression related performance

[Joe R. J. <jj...@cl...>]

On Tue, 18 Jan 2005, Neal Richter wrote:

> Date: Tue, 18 Jan 2005 11:47:40 -0700 (MST)
> From: Neal Richter <ne...@ri...>
> To: Joe R. Jah <jj...@cl...>
> Cc: Jim <li...@yg...>, htd...@li...
> Subject: Re: [htdig-dev] Compression related performance
> 
> 
> >> Jim,
> >>  	Thanks for the numbers.  Pretty different from Joe's.
> >
> > Yes they are; can you explain it?
> 
>    #1)  What is the size of  wordlist_cache_size?

I haven't specified it in my htdig.conf file, so it must be the default
10000000.

>    #2)  wordlist_page_size?

I did vary that from 0, 1024, 2048, and 4096.  The optimum number happens
to be 2048 in my system; however, when it comes to compression and no
compression my system performance has been consistently better with
compression, regardless of this factor.

>    #3)  Are either of you using a journaling filesystem?

I do not.

>    #4)  Does one of you have somekind of high performance disk-drive?

Here is my disk-drive system:

RAID 5 10K RPM, 1" Ultra3 (Ultra 160) SCSI Hard Drives.

> I'm pretty well stumped on this one if none of these 4 is different 
> between you... we know the process is very I/O bound, so if one is much 
> faster and all other things are equal...
> 
> -- 
> Neal Richter 
> Knowledgebase Developer
> RightNow Technologies, Inc.
> Customer Service for Every Web Site
> Office: 406-522-1485

Regards,

Joe
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