RE: [SQU] Tune up Squid Cache Hit

Hi,

You may also consider what you mean by hit rate percentage. One way of
looking at it is measuring how many percent of requests that are a HIT.
Another way is looking at percent of transferred bytes that are taken from
the cache (HIT).

Which percentage are you talking about?

Also, increasing the disk and/or memory will have different effect depending
on how full your cache normally is. You may have configured your ruleset so
that the cache _never_ fills up, and if that is the case your upgrade will
not have any effect on hitrate. However, more RAM means better performance
if you fill it up with hot cache objects.

/Stefan

-----Original Message-----
From: Awie [mailto:awie@eksadata.com]
Sent: den 20 februari 2001 14:48
To: squid-users@ircache.net; Martin A. Brooks
Subject: Re: [SQU] Tune up Squid Cache Hit

Hi Martin,

You answer is accurate !

I agree with you that "good" percentage of cache hit mean nothing, it's very
relative from a person to another person. However, I just want know what
average number. And you gave me your opinion. Thanks !

In my case, our user is extremely varieties. Even we have users that run
Internet café business. So, our access to Internet is very dynamic. As your
answer (compare to our case), I assume that increasing cache_mem and cache
size will force the objects stay longer into our Squid. Am I right?

Please advise. Thx

Best Regards,

Awie

----- Original Message -----
From: "Martin A. Brooks" <martin@hinterlands.org>
To: "Awie" <awie@eksadata.com>; <squid-users@ircache.net>
Sent: Tuesday, February 20, 2001 8:54 PM
Subject: Re: [SQU] Tune up Squid Cache Hit

> At 18:33 20/02/01 +0800, Awie wrote:
> >My questions are:
> >
> >1. I assume that increasing cache mem and cache size will also improve my
> >cache hit. Am I correct?
>
> Not really, cache_hit can only be "improved" by lots more people visiting
> the same sites. Increasing the memory and diskspace means you potentially
> cache more pages but, if your users visit fairly diverse pages, this means
> that your cache hit ratio may actually decrease.
>
> >2. What is the default of percentage of "good" cache hit?
>
> This is kind of meaningless. I guess anything from 25-50% is reasonable.
>
> >3. How can I increase the cache hit? (Please don't tell me to upgrade
> >bandwidth)
>
> Force more objects to be cached longer. The downside to this is that you
> end up increasing the staleness of your cache.
>
> Regards
>
>
> Martin A. Brooks
> ------------------------------------------------------
> If Windows NT were an animal, it'd be a fainting goat.
>

--
To unsubscribe, see http://www.squid-cache.org/mailing-lists.html
--
To unsubscribe, see http://www.squid-cache.org/mailing-lists.html