[Engine-devel] Updates in VdsUpdateRuntimeInfo

[Liran Zelkha]

Hi all,

I'm checking performance for VdsUpdateRunTimeInfo.
Naturally, much of the performance surrounds database activity (getVmsRunningOnVds queries, updateDeviceRuntimeInfo, updateVmDynamic)

Few questions:
1. I have implemented batch updates for procedure UpdateVmDeviceRuntimeInfo for improved performance. 
2. Seems like the only parameters UpdateVmDeviceRuntimeInfo is getting are vm_id,vm_device_id,address and alias. Are those rapidly changing, or will it be beneficial to implement caching on those updates (to ensure not-required updates do not travel to the database).
3. Any additional known performance problems you know of in regards to this class?

Thanks...