Re: Performance Issues (Was Re: RB server upgrade from 1.6.1 to 1.7.4)

2014-03-07 Thread Ze Lin Xiao
Sorry for the late response. I missed this reply. For Apache settings the worker and prefork configurations are the exact same between the two vms: # prefork MPM # StartServers: number of server processes to start # MinSpareServers: minimum number of server processes which are kept spare #

Re: Performance Issues (Was Re: RB server upgrade from 1.6.1 to 1.7.4)

2014-03-07 Thread Christian Hammond
Hi Ze, The spikes every 5 minutes are interesting. Sounds like a cronjob or something, perhaps? Are you using search indexing? What are you using for the database? Remind me what version of RB you guys are using? - Christian -- Christian Hammond - chip...@chipx86.com Review Board -

Re: Performance Issues (Was Re: RB server upgrade from 1.6.1 to 1.7.4)

2014-03-06 Thread Ze Xiao
Thanks for the quick reply. Yes, memcached is running. Here is what I see from the Admin Server Cache page I've got it running on two different vms, which I've obfuscated as VM1 and VM2 SERVER CACHE Cache backend: django.core.cache.backends.memcached.CacheClass vm1 Memory usage: 1.8 GB

Re: Performance Issues (Was Re: RB server upgrade from 1.6.1 to 1.7.4)

2014-03-06 Thread Christian Hammond
Okay, well, I was hoping it'd be simple :) Can you give me some examples of operations that are very slow, and operations that remain fast? Or does everything basically slow to a grind? How do the Apache settings (worker vs prefork, and their config) compare between installs? Christian On