Re: [squid-users] Fine Tuning - Suggestions If you would..

Nguyen, Khanh, INFOT wrote:
> Errol,
>
> If you are familiar with scripting language like Perl, awk, you can
> quickly process the access.log (not the cache.log) for MISS entry, list
> of URLs that are MISS, how many of them, Approximate how long the object
> stay in cache (a hit then a miss on the same url) Are they including the
> query string.. Those data would be handful for you to figure out a
> policy to improve the hit rate and bandwidth saving.
>
> Alternative to scripting, you can try grep utility of unix, but you will
> have lot more data to analyze by eyes. For example: 'grep MISS
> access.log > output.txt' to get all miss entries and output to file
> output.txt
>
> Not sure if there is any package, utility out there to do this kind of
> analysis. Maybe a nice utility tool to analyze the log and give out some
> suggestions to tune it for higher hit rate.
>
> One thing i found useful when tunning is to go after the objects that
> being accessed the most. Maybe a very handful of objects that result low
> hit rate, if you can correct those, your goal is almost done.
>
> Khanh
>

As part of it's output Scalar (http://scalar.risk.az/) quantifies
hit/miss statistics for file extensions, content type and Object sizes.
Very useful for tuning.

Chris
Received on Thu Oct 19 2006 - 15:42:54 MDT