Hostname lookup is always off in all config. There is no allow, deny
directive with hostnames.
In my original post, I said I've tested with apache 1.3 and 2.0.
And btw, I forgot to mention an important point, during the 8-15 seconds it
takes to display the page, the particular thread serving this page eats
close to 100% of 1 cpu.
Nicolas
----- Original Message -----
From: "Brent Baisley" <brent@xxxxxxxxxxxx>
To: "Nicolas Ross" <rossnick-lists@xxxxxxxxxxx>
Cc: <php-general@xxxxxxxxxxxxx>
Sent: Wednesday, September 14, 2005 10:46 AM
Subject: Re: php Slow with Mac OS X 10.4
There are two thing to check in the Apache config to make sure DNS is not
the thing slowing you down.
HostnameLookups defaults to On in Apache2, but defaulted to off in
Apache1. Check that setting.
Also, if you use Allow and Deny directives with domain names, Apache does
a double reverse triple lindy DNS lookup (or something like that). That
would slow things down alot, but not affect ssh, ftp, etc.
Regardless, my guess is it's something with Apache2 that is causing the
slow down. Have you tried Apache1.3 under 10.4? I haven't experienced any
performance slow down under 10.4 using 1.3.
On Sep 14, 2005, at 9:57 AM, Nicolas Ross wrote:
In all cases, it was the same httpd.conf. Of course, from apache 1 to
2 there where differences, but basicly it's the same.
your description gives the impression that there is a DNS configuration
problem...
like apache is trying for 5-10 seconds to look something up, fails and
then finally
decides to run your script.
you can test that with a simple script like:
<?php /*make sure all outputbuffering is off!*/ for ($i=0;$i <
100000;$i++) { echo "$i<br />"; } ?>
chances are it will start outputting after a certain ammount of time
rather than right away.
that said this is a very simplistic test and my understanding of this
stuff is rather limited.
It did occure to me that there maybe a dns issue, but it can't be. My
tests were done on two separates server rooms. In the second one (the
one with the xserves), I have 3 computers. All ip config is exactly the
same (apart from main ip)... And the only non-network related difference
between the nodes are the OS (10.3 vs 10.4).
Besides, if it were a DNS problem, I would also experience delays
elswhere, like ssh, ftp an other things network-related.
I did the test, and it started to output immediatly...
Thanks,
Nicolas
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