Reverse proxy question
From: Louis LeBlanc (freebsd_at_keyslapper.org)
Date: 11/04/03
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Date: Tue, 4 Nov 2003 15:23:43 -0500 To: FreeBSD Questions <freebsd-questions@FreeBSD.org>
Hey everyone.
Here's a question that may have been answered in the past, but I'm not
real satisfied with what I've found on Google.
I have been tasked with setting up a reverse proxy (open source,
probably squid) that is capable of handling 5000 requests per second
or more. Yes, 5000/sec. It's a world gone mad, I tell you.
Licensed products like iMimic and Volera are not options. The OS is
flexible (I'm leaning toward a recent 4.x version of FreeBSD) and the
hardware is limited to what's on hand - either a Dell 2550 or 2650
with 1G Ram, 30G hard drive space, and varied CPU configurations.
What we have available are as follows: single 933MHz Xeon in the 2550,
single or dual 1.3 or 1.8 GHz Xeon in the 2650.
I realize that Squid relies more on disk seek times than actual
transfer rate or CPU power. If I've been told right, the disks are
all mirrored 30G drives, but I don't have seek times on hand.
I know that most reverse proxies out there - both commercial and open
source are typically single CPU architectures, so that will be the
initial focus.
The problem I would like help with here is the version of FreeBSD that
would be more likely to handle this kind of load, particularly with
respect to Posix asynchronous I/O. I've been told that 4.6 and
earlier didn't have great Posix A-I/O support, but is it better in
4.8, or should I jump to 5.0?
Also, if anyone knows of a reverse proxy that may be able to do better
than Squid, I'd certainly welcome the suggestion. The benchmarks I've
seen online indicate I may need to improve squid by a factor of 10.
Not sure that's really an option unless the benchmark I've seen is
horribly biased. Of course, if anyone has a web site that details
some of the finer tweaks that might at least get Squid close to the
requirements, that'd be great too.
Thanks in advance.
Lou
-- Louis LeBlanc leblanc@keyslapper.org Fully Funded Hobbyist, KeySlapper Extrordinaire :) http://www.keyslapper.org ԿԬ Armor's Axiom: Virtue is the failure to achieve vice. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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