#0915 Scalability in multi-core environments
Hi Peter,
Lately we've run into some performance issues with our instance of IssueTrackerProduct. We have about 8k issues, and the List Issues page is getting very slow to load, i.e. about 10 seconds or more, depending on the number of concurrent users. I would guesstimate that at any given time, about 150-200 users are logged in. Because archiving is not an option at this time, we've decided to upgrade the hardware. First the RAM was upgraded and is not an issue anymore (lots of unused RAM). Next we upgraded to a multi-CPU environment, but that didn't help much. The first CPU is hit with 100% loads while the second stays at around 4%. It's like the second CPU is not being used by Zope at all. Is there any software flag somewhere to enable use of the other CPU?
Thanks for your help.
1 year and 10 months and 2 weeks old
With multi-CPU you can use ZEO.
Yes, I've read about that in the meantime. Fortunately, I was able to significantly improve performance by increasing the ZDB cache...