Re: Slow responses

On Friday 23 January 1998, at 16 h 33, the keyboard of Terje Krogdahl
<tekr@nextel.no> wrote:

> I have a squid 1.1.18 running on a DEC alphaserver 800 box, with
> DEC unix 4.0b. The cache filesystem is 16GB.

We had almost the same for our national cache.

> When the cache gets a lot of requests (it serves over 2 million requests
> each day, and at peak reaches nearly 50 requests per second) the response is
> horrible. Pages that can be fetced directly from the webserver

You're better than us. We stopped at 25 requests/second, at which point
the response time was too horrible.

> may take a minute or two from the cache. There is no paging going on, and
> neither raw disk I/O nor network I/O seems to be a problem. Of my 16 dnsserver
> processes the last few are rarely used. CPU load rarely goes above 0.5.

Same symptoms for us.

We tried a PC/Linux and went a bit further. Then, we dropped the whole stuff. It seems no one uses Squid for huge national caches with success. (We still use it for campus or even regional caches.)
Received on Mon Jan 26 1998 - 23:52:07 MST