As stated before in this thread, in my case it's nothing about dns.
On 2 machines I have, both were 10.3, one was upgraded to 10.4, the other
not. Nothing else has changed. On the 10.4, it's slow, on the 10.3, it's
fast. All dns lookup is off in all apache config...
I did an iostat when I experience the slowdown, and I get no noticable disk
activity.
With fs_usager (that I didn't know), I get in about 1 second 57k lines of
activity ! But still appears (with the timestamps I see) take only about 1
second.
With netstat -an, besides the mysql connection and the http connection, I
see nothing else waiting to return...
BTW, on my test machine, there is nothing else running or other "live"
site...
Brent, can you tell me what kind of php application you're running on os x
10.4 ? Can you share your apache config ? What king of setup do you have
(what apache, php etc.) ?
Thanks,
Nicolas
----- Original Message -----
From: "Brent Baisley" <brent@xxxxxxxxxxxx>
To: "Nicolas Ross" <rossnick-lists@xxxxxxxxxxx>
Cc: <php-general@xxxxxxxxxxxxx>; "Shawn Moore" <shawn@xxxxxxxxxxxxxxx>;
"Atelier Fabien" <info@xxxxxxxxxxxxxxxx>
Sent: Monday, October 24, 2005 3:13 PM
Subject: Re: php Slow with Mac OS X 10.4
I haven't had any problems with slowdowns on 10.4. Usually when there are
slowdowns on the Mac like you indicate, it has something to do with DNS
lookups being performed. Apple seems to be having a hard time getting this
right. You could problem find a ton of posts on very slow ssh on the Apple
forums that have to do with DNS.
Have you figured out what the computer is doing when a page is taking
that long? You mention it seems to point to an IO problem, have you used
iostat (or fs_usage) to verify it's disk IO? My first guess is something
with the network and you have to wait for a lookup, response or timeout,
which is why it's taking at a minimum 10 seconds. Again, I would check
DNS first, the most obvious being Apache resolving IP addresses for the
log (don't do it).
On Oct 24, 2005, at 12:44 PM, Nicolas Ross wrote:
Just a little follow-up to my own post.
From the latest expriments I've done with a fresh install of OS X 10.4
(with the latest 10.4.3 beta update), it seems to point to an IO
problem.
My test site uses mambo as a CMS, and I've inclued collecting of
microseconds timestamps at key points of the index file, and whenever it
includes some files it slows down. It's worse when there are several
nested includes. One other point is the mysql db connection.
I must recall to all that when called from the cli, it's ok. Only when
called from apache (1 or 2), dso or static and only on Mac OS X 10.4
(it's ok with 10.3 and 10.2) I expericed a major slowdown. For all
tests, all config is the same, libraries and binaries where all the same
on all systems.
I've tried compiling php as cgi also, it helps a little bit, but it's
still too slow...
Thanks for any hints...
Nicolas
----- Original Message ----- From: "Nicolas Ross" <rossnick-
lists@xxxxxxxxxxx>
To: <php-general@xxxxxxxxxxxxx>
Sent: Wednesday, September 14, 2005 9:00 AM
Subject: php Slow with Mac OS X 10.4
Hi all !
Here, we've got several Mac computer acting as servers to serve many
kinds
of sites. One of wich was running, until the middle of august, Mac OS X
10.2. It was then with apache 1.3.x, and php 4.3.10 dso. All things
were
"normal".
At the middle of august, we upgraded to Mac OS X 10.4 (re-install from
scratch). Now, it's with apache2, php 4.4.0 dso. Now, everthing that is
php
is slow as hell. A page that took normally less than a second to
render, now
takes up to 15 ! Yes, fifteen seconds. That depends of course on the
general
load of the server, but it nevers goes down under 8 to 10 seconds.
The machine is a dual G4, with 1.5 gigs of ram.
Now, if I go to the command line, in the directory of this site and
type
"php index.php", it renders in about 1 to 1.5 seconds, wich is
acceptable.
I did tests with :
- apache 1, php 4, php 5, all static or dso
- apache 2, php 4, php 5, dso
- php 4.3, php 4.4
- Stock php that comes with Tiger
- Stock apache that comes with Tiger
- Different compile options with mysql as --with-mysql
and --with-mysql=/usr/local/mysql
- I've also tried with and without zend optimizer, turck mmcache.
All with the same results.
In my test case, there is mysql involved, but it's irrelevent to the
problem, since the mysql is an another machine and is the same all
trough my
tests.
Now, in a different server room, we have a set of 3 xserves cluster
node
dual g5 with 4 gigs of ram each. One of them was upgraded to Mac OS X
10.4
(server) and the other 2 are still with 10.3.
If I take the same setup (same compile options, same versions) on these
machines, the exact same site is slow as hell on the 10.4, and
lightning
fast on 10.3.
Here's my php configure command :
/configure --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql --with-fbsql
--with-xml --enable-ftp --with-curl=/sw --with-zlib --with-png-
dir=/sw --with-jpeg-dir=/sw
--with-gd --with-ttf=/sw --with-freetype-dir=/sw --enable-track-
vars --enable-trans-id
--disable-debug
This is really begins to bugs me...
Any hints ?
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Brent Baisley
Systems Architect
Landover Associates, Inc.
Search & Advisory Services for Advanced Technology Environments
p: 212.759.6400/800.759.0577
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