Re: squid's async-io
On Mon, Nov 06, 2000 at 01:33:21PM -0700, Miquel van Smoorenburg wrote:
> Could you try
> and let me know how it works for you ?
The default setup worked great for me!
I tried setting cache_dir to asyncufs /var/spool/squid 1000 16 256
and it went back to the previous behavior of 200K/s. Switching it
back to ufs worked like a charm.
So here are my results on a very limited test:
10 looped wgets (large 20MB file) started in parallel over 100MB LAN
2.2.5 (async-io) / 2.3.4 (asyncufs cache_dir option)
- 5000-6000K/sec throughput, 30-40% CPU idle (vmstat 1, dual CPU)
2.2.5 (no async-io) / 2.3.4 (ufs cache_dir option)
- 9000-9600K/sec throughput, 50-60% CPU idle (vmstat 1, dual CPU)
So even though I might not be fully utilizing the second CPU for squid,
no async-io makes a lot more sense for me right now. I will probably
try again using a smarter test (Web Polygraph) later.
Jeff Lightfoot -- jeffml at pobox.com -- http://thefoots.com/
"How can I sing like a girl and not be stigmatized by the rest of
the world?" -- TMBG