Help me test and verify my config
shankar at opendrops.com
Mon Jun 25 04:22:22 UTC 2012
The question is buried inside the details. It's, I guess, this:
"But i wanted your expert opinion on how to check, test and verify my
config params for nginx and php5-fpm. I want to be 100% sure i haven't
allocated too many processes."
Mike Dupont wrote:
> so what is your question?
> On Sun, Jun 24, 2012 at 12:23 AM, bp1000<nginx-forum at nginx.us> wrote:
>> Nginx community, i've recently switched to this awesome software which
>> has performed admirably under load testing.
>> I host a php/mysql driven site that with each page view serves results
>> from multiple external xml feeds in realtime. Once we have the XML data
>> we cache results to reduce load.
>> I run nginx / php5-fpm / memcache and APC. Site gets> 100,000 searches
>> per day. Each query takes between 1 and 4 seconds depending on the
>> search. So as you can imagine the processes don't open and close as
>> quickly as some more basic php sites. Server load is around 3 average
>> for a quad core box. So OK...
>> But i wanted your expert opinion on how to check, test and verify my
>> config params for nginx and php5-fpm. I want to be 100% sure i haven't
>> allocated too many processes. So without pasting my entire config, i
>> will show just the bits i'm concerned i wish to check with you guys.
>> php5-fpm tweaks
>> Concerns - is max_children / start servers too high? Would they take up
>> CPU processes wasting resources?
>> pm = dynamic
>> pm.max_children = 30
>> pm.start_servers = 15
>> pm.min_spare_servers = 5
>> pm.max_spare_servers = 30
>> pm.max_requests = 511
>> listen.backlog = 1024
>> Worker_processes 4
>> worker_connections 8192
>> Concerns - is my fastcgi_buffers too much? The reason why i set them
>> high is that each XML result can contain a lot of data.
>> fastcgi_connect_timeout 60;
>> fastcgi_send_timeout 180;
>> fastcgi_read_timeout 180;
>> fastcgi_buffer_size 128k;
>> fastcgi_buffers 256 16k;
>> fastcgi_busy_buffers_size 256k;
>> fastcgi_temp_file_write_size 256k;
>> Even under load, memory usage only reaches about 45% so perhaps i'm
>> wasting an opportunity to cache more things in memory.
>> Thank you
>> Posted at Nginx Forum: http://forum.nginx.org/read.php?2,227820,227820#msg-227820
>> nginx mailing list
>> nginx at nginx.org
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