Re: Is squid unable to handle the load?

From: Alex Rousskov <rousskov@dont-contact.us>
Date: Wed, 27 May 1998 08:35:25 -0600 (MDT)

On Wed, 27 May 1998, John Lauro wrote:

> PS: At least on my system (I'm running a little more then just squid,
> so cann't say for sure it's just squid), my total writes-per-second is
> generally > my reads-per-second. Meaning, you want more then just 2
> drives to keep the drives idle enough for reads to take priority over
> writes...

Here is a sample of 11 proxies running Squid 1.1:

http://www.cs.ndsu.nodak.edu/~rousskov/research/cache/squid/profiling/stats/gindex.all.wd/gbag.day.dreq.html

As you can see, some proxies have more reads, some have more writes. However,
on most loaded proxies, the rate of write requests is higher, often a lot
higher, than the rate of read requests.

It may be explained based on the value of document hit ratio, but there are
probably other factors. Interestingly, on NLANR cache (sv) writes (reads)
prevail only half of the day, perhaps reflecting changes in international
traffic patterns.

Alex.
Received on Wed May 27 1998 - 07:37:32 MDT

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