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Old 10-01-2008, 12:23 PM   #1
brianpbarnes
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Registered: Dec 2005
Posts: 143

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Mod_Perl slow performance on Suse 11


Hi,
I just did a major hardware upgrade and upgraded from Suse 10.3 to 11. The mod_perl performance seems to be dramatically slower than it was on the old machine. It almost seems as though Perl is being executed as a subshell rather than through mod_perl linked into Apache 2.2.

I used to have a bad, old ISP who disabled mod_perl which gave me about a 2-3 second delay for every page served because they wanted me to upgrade to a "dedicated server". It's almost that bad.

I have Mysql and Apache both running on the same host, Vulcan, so it's using Unix sockets and not Inet sockets so it should be as fast as possible. The pictures are also cached on a Raptor 74 hard drive which is fairly peppy. I am still seeing almost a second delay between jpg pictures of roughly 800 pixels in size. On my old AMD 3800+ CPU, the pictures would snap instantly on the screen.

I can't find the server-status or server-info modules in Yast when searching for Apache. I searched the entire system for mod_status.c and can't find it.

I would hate to have to compile Apache and mod_Perl from source to get the performance up. Then I would have to maintain them both by hand rather than using yast ->online_update.

System:
AMD X2 4400+ (2.2 GHz, 2x1 MB L2)
3GB CAS 2-3-2-5 DDR1
Raptor 74 system drive
Raptor 74 x2 RAID 0 /dat drive (for database).
Asus A8N-SLI Deluxe
Dual, gigabit ethernet
Suse 11 with Apache, mod_Perl and Mysql loaded by YAST.
Running generally without X windows
Top shows 0 kB swap, 1.7 GB free memory, CPU < 1%.

Is there a Suse way to diagnose and fix this lack of performance?

Thank you,

BrianP
 
  


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