You certainly wouldn't want to do just fs_usage. Typing something
like "fs_usage httpd" will show you just what the httpd process is
accessing. Read the man pages for other options that may be helpful.
I've got a few things running on OSX 10.4, although none that handle
lots of traffic. Public sites:
dutchessfootball.com - a football pool, the picks page is the slowest
to load. That's on a single cpu 1.25 G4 512MB RAM
heardthroughthegrapevine.com - wine tasting site, nothing fancy or
that complicated. That's on a 400Mhz G4 384MB RAM.
The big application is internal to my company and has about 285 "web"
files total, and about 45 mysql tables (contacts, companies, resumes
invoices, jobs, emails, journal,etc). They all have lots of includes
since I use a custom templating system to separate php from html. I
do not use PEAR or any content management system, I found them too
slow. I know a few people who have looked at Mambo and rejected it
because of it's CPU load, although they were all using Windows
servers. I've never looked into why Mambo has high CPU requirements.
Is it just the Mambo parts you are having problems with or is it php
in general?
With 100% CPU, we've narrowed it down to something there. Now we need
to figure out why the CPU is the bottleneck.
On Oct 24, 2005, at 4:21 PM, Nicolas Ross wrote:
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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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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