Bamboo server load and recommendation for tuning

[Sysop Team]

Hi,

we have a Bamboo server (version 5.0 build 3715) on a DELL server (Quadcore Intel(R) Xeon(R) CPU X3450 @ 2.67GHz, 16 GB RAM, 2 x 2 TB harddisk (RAID)) and now we have from time to time really heavy load on the machine. Therefore I want to ask if someone can help us to tune the machine. The current setup for the JVM opts is: -Xms256m -Xmx8192m -XX:MaxPermSize=256m. I changed this now to: -Xms5120m -Xmx6144m -XX:MaxPermSize=256m <- makes this sense? We have 7 local agents and 10 EC2 remote agents running, 46 build plans, and around 7 different branches for some of the plans. Where to look for bottlenecks?

[Sysop Team · Accepted solution]

Thanks for your quick response. We'll try what you suggested.

[Jan Swaelens]

Hello,

You should start by installing the JavaMelody plugin for Bamboo. This will give you nice stats about how much memory is actually used by the Bamboo instance.

In ou setup the bamboo JVM never takes more than 2GB, whereas the threads that are spawned from the builds itself consume additional memory because they are launched in separate JVM's (depends on how your builds are actually setup ofcourse).

Note that JavaMelody will only give you information about the JVM of the Bamboo instance, it can be handy to also monitor the machine with something like Zabbix (or alternatives) to make sure that spawned processes don't overload the machine either.

cheers