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From Brian Behlendorf <>
Subject Re: JPL's rocketing webservers
Date Tue, 08 Jul 1997 08:23:37 GMT
At 08:49 PM 7/7/97 -0700, sameer wrote:
>Which is of course a big MT plus. with MT won't need so much RAM.

Perhaps not a huge amount, as Dean has been arguing.  What OS is JPL's
servers running?  I'd guess Irix since that's what SGI's press release told
me :)

They did turn off hostnamelookups, right? 

And parsing for .htaccess files?

And unloaded any modules they didn't need?

When we tuned the server on the largest site we ever hosted, stripping out
the non-essential modules (i.e. mod_cgi, mod_dir!) we were able to handle
300-400 simultaneous children on a 128MB DEC Alpha 233mhz running OSF/1,
and hitting bursts of 80-100 hits/sec with a sustained average around 60-65
hits/sec.  We still didn't sufficiently satisfy the demand in my opinion
(the accept() queue took 10-15 seconds to get through) but the point is
that there might be a lot more tuning possible.


"Why not?" - TL  - -

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