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Lighttpd eating more RAM than Apache.
This is a discussion on Lighttpd eating more RAM than Apache. within the Web servers forums, part of the Mastering Servers category; I am in mid phase of replacing apache with lighttpd , I have 600 MB RAM , when apache runs ...
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06-25-2008, 04:53 PM
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Lighttpd eating more RAM than Apache.
I am in mid phase of replacing apache with lighttpd , I have 600 MB RAM , when apache runs alone it eats 200 MB RAM where as lighttpd eats 550 MB RAM in same conditions
.Site functions faster with lighttpd but during peak hours lighttpd crashes since it goes short of RAM . below is my main settings of lighttpd , plz tell what changes should i make PHP Code:
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06-25-2008, 05:40 PM
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I don't wanna believe you. Are you sure about memory issue? Do you run lighttpd in VPS server or dedicated server? How many PHP requests per second do you need? If you need 25 PHP requests per/sec, then
25 * 0.1sec/php = 2.5 php process. Let us round it to 3 process. Here is some optimized config: Code:
fastcgi.server = ( ".php" =>
((
"bin-path" => "/usr/bin/php-cgi",
"socket" => "/tmp/php-cgi.socket",
"max-procs" => 3,
"idle-timeout" => 30,
"bin-environment" => (
"PHP_FCGI_CHILDREN" => "50",
"PHP_FCGI_MAX_REQUESTS" => "500"
),
"bin-copy-environment" => (
"PATH", "SHELL", "USER"
),
"broken-scriptfilename" => "enable"
))
)
Redhat / CentOS / Fedora Linux Install XCache for PHP 5 XCache - Boost PHP Performance - Trac You also need to optimize mysql by enabling mysql query cache MySQL :: MySQL 5.0 Reference Manual :: 7.5.4 The MySQL Query Cache Enable the query cache in MySQL to improve performance Also note that sometime VPS put restrictions on open file and connections.
__________________
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06-25-2008, 09:40 PM
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I used your settings but lighttpd eated all the RAM , as more than 30 instance of php-cgi were started as soon lighttpd was started .
and i got two big sites alexa ranking of one is 5K ----------its file/ image sharing (thubnails enabled) the other is an IPB forum alexa ranking 15K I hv no idea how much php request i get , hope you hav estimated it with abv information also i am already using xcache .I think mysql is tuned since it takes only 10% of RAM.
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06-26-2008, 08:55 AM
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You need to tell us about request per seconds you get (turn on mod_status in lighttpd set fast fastcgi.debug = 1 and monitor error log file to get exact load of php. How did you find out that lighttpd is eating all memory? What is output of the following?
Code:
ps aux | grep php w atop
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07-04-2008, 08:35 PM
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well i dnt got fastcgi.debug anywhere in my lighttpd.conf ,
using monit n top cmmand i come to conclusion lighttpd eating ram , fastcgi.active-requests: 2 fastcgi.backend.0.0.connected: 55701 fastcgi.backend.0.0.died: 0 fastcgi.backend.0.0.disabled: 0 fastcgi.backend.0.0.load: 2 fastcgi.backend.0.0.overloaded: 0 fastcgi.backend.0.load: 3 fastcgi.requests: 55701
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