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#1 2008-11-10 20:54:12
- perssinaasappel
- Member
- From: Europe
- Registered: 2008-10-22
- Posts: 59
lighttpd + php memory usage
Is it normal for lighttpd and php to eat a lot of memory?
The only webpages running are nzbgetweb v1.2 and musicbrowser v0.16
Code:
Mem: 47036K used, 14764K free, 0K shrd, 10864K buff, 14460K cached CPU: 0% usr 0% sys 0% nice 99% idle 0% io 0% irq 0% softirq Load average: 0.00 0.00 0.00 PID PPID USER STAT VSZ %MEM %CPU COMMAND 25994 1674 root S 5084 8% 0% sshd: root@pts/0 26014 26001 root R 1360 2% 0% top 1686 1 root S 14548 24% 0% /ffp/sbin/lighttpd -f /ffp/etc/lighttpd.conf 1436 1 root S 11164 18% 0% /web/webs 20541 1697 root S 8436 14% 0% /ffp/bin/php-cgi 1699 1696 root S 8436 14% 0% /ffp/bin/php-cgi 1696 1686 root S 8396 14% 0% /ffp/bin/php-cgi 1697 1686 root S 8396 14% 0% /ffp/bin/php-cgi <snip>
When I reboot the NAS, lighttpd mem usage drops from 24% to 5%.
Code:
Mem: 43488K used, 18312K free, 0K shrd, 13500K buff, 17540K cached CPU: 0% usr 0% sys 0% nice 99% idle 0% io 0% irq 0% softirq Load average: 0.36 0.28 0.11 PID PPID USER STAT VSZ %MEM %CPU COMMAND 1704 1701 root R 1360 2% 0% top 1696 1685 root S 8396 14% 0% /ffp/bin/php-cgi 1695 1685 root S 8396 14% 0% /ffp/bin/php-cgi 1698 1695 root S 8396 14% 0% /ffp/bin/php-cgi 1697 1696 root S 8396 14% 0% /ffp/bin/php-cgi 1699 1673 root S 5084 8% 0% sshd: root@pts/0 1477 1 root S 4928 8% 0% /usr/sbin/samba/smbd -D 1482 1477 root S 4928 8% 0% /usr/sbin/samba/smbd -D 1436 1 root S 4084 7% 0% /web/webs 1481 1 root S 2968 5% 0% /usr/sbin/samba/nmbd -D 1685 1 root S 2784 5% 0% /ffp/sbin/lighttpd -f /ffp/etc/lighttpd.conf <snip>
Any comments will be appreciated.
Last edited by perssinaasappel (2008-11-10 21:34:38)
CH3SNAS • 1.05b5 • ffp 0.5 • 2x WD Caviar Green WD5000AACS • nzbget(web)
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#2 2008-11-12 23:04:18
- perssinaasappel
- Member
- From: Europe
- Registered: 2008-10-22
- Posts: 59
Re: lighttpd + php memory usage
I'm not sure if it's exactly what I'm experiencing but it looks like bug #1387 on the lighttpd web pages.
Maybe a quick and dirty solution is to reboot lighttpd with cron once a day or so.
Last edited by perssinaasappel (2008-11-12 23:06:16)
CH3SNAS • 1.05b5 • ffp 0.5 • 2x WD Caviar Green WD5000AACS • nzbget(web)
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#3 2008-11-15 18:13:49
- perssinaasappel
- Member
- From: Europe
- Registered: 2008-10-22
- Posts: 59
Re: lighttpd + php memory usage
In my case musicbrowser is creating the problems.
When I checked, lighttpd was eating up 146% of memory!
This happens when I want to play big music file in embedded flash player.
If you play in flash the file seems to be downloaded to the client PC.
While downloading memory usage goes sky high. (See attached file.)
So be warned if you'r using musicbrowser with the embedded flash player like me. 
I'm rebooting the daemon every night via cron trying to release memory.
Code:
45 6 * * * /mnt/HD_a2/ffp/bin/pkill -f /ffp/sbin/lighttpd > /ffp/log/reboot_lighttpd.log 2>&1 46 6 * * * /mnt/HD_a2/ffp/sbin/lighttpd -f /ffp/etc/lighttpd.conf >> /ffp/log/reboot_lighttpd.log 2>&1
One question about the pkill command, is it really releasing the clogged memory used by lighttpd?
When I look with top after the kill command it shows: Mem: 60260K used, 1540K free, ...
When I reboot the NAS top shows: Mem: 43624K used, 18176K free, ...
Big difference if you ask n00b like me and wondering if pkill really gives memory back?
Any ideas on this?
Last edited by perssinaasappel (2008-11-16 00:15:20)
CH3SNAS • 1.05b5 • ffp 0.5 • 2x WD Caviar Green WD5000AACS • nzbget(web)
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