Re: php Slow with Mac OS X 10.4

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Still, with fs_usage PID, I get more the 57k lines of stuff... I've found
another tool that is more appropriate to monitor system calls : sc_usage.
This tool gave me this :



=================
httpd             5 preemptions    7 context switches    1 thread
08:45:51
                 0 faults        90 system calls
0:00:11

TYPE                            NUMBER        CPU_TIME   WAIT_TIME
------------------------------------------------------------------------------
System         Idle                                      0:03.867( 0:00.798)
System         Busy                                      0:02.221( 0:00.300)
httpd          Usermode                       0:01.156

zero_fill                       929           0:00.032   0:00.163
copy_on_write                     1           0:00.000
cache_hit                        22           0:00.000

read                            829(2)        0:00.018   0:04.821( 0:01.096)
W
getdirentries                  5214           0:02.260   0:00.416
getattrlist                    6689           0:00.207   0:00.132
poll                              1           0:00.000   0:00.016
close                          5268(7)        0:00.106   0:00.016
fstat                         10518           0:00.088   0:00.016
select                            4(2)        0:00.000   0:00.010
fcntl                          5293           0:00.014   0:00.010
lstat                          6253           0:00.279   0:00.007
open                           5312(49)       0:00.187   0:00.003
stat                           6430(7)        0:00.181   0:00.001
mach_msg_trap                   547           0:00.008   0:00.000
fstatfs                        5212           0:00.075   0:00.000
readlink                        280           0:00.006   0:00.000
write                            50(9)        0:00.005   0:00.000
chdir                             2           0:00.000
accept                            1           0:00.000
getsockname                       1           0:00.000
access                           44           0:00.001
sigaction                        21(14)       0:00.000
sigprocmask                      23           0:00.000
umask                             3           0:00.000
setitimer                         3           0:00.000
socket                            1           0:00.000
connect                           1           0:00.000
setsockopt                        4           0:00.000
gettimeofday                      2           0:00.000
getsockopt                        1           0:00.000
writev                            1           0:00.000
shutdown                          1           0:00.000
lseek                          5308           0:00.026
vm_allocate                     283           0:00.012
vm_deallocate                   250           0:00.010
vm_copy                           1           0:00.000


Which tells my that my last asumption is right, it's file-system related.
The process passes it's time at :

- System busy and idle tasks for 6 seconds
- read for 4.8 seconds
- getdirentries for 2.2 seconds
- httpd usermod (I assume that is php processing time, nothing wrong here)



Since I am a registered Apple developper I will log an incident with apple
for this. I'll let you all know



And Richard, I must rule out the mysql problem. As stated before, on two
hardware identical machine, one with 10.3, and one with 10.4. The mysql
database is on a third different machine. So connection time should be
identical. Besides, with the trace i've done with micro-seconds timestamps,
the majority of the time mysql_connect takes less than 0.01 seconds.

As for includes, again as stated before, all is the same, including config
files, thus include_path, wich only contains /usr/local/lib/php, and this
directory contains the base PEAR installed over time plus one or two other
file.

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 5:03 PM
Subject: Re:  php Slow with Mac OS X 10.4


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:


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