Blue Iris

Hello

I am new user of BI. It is running for about two months and I decided to migrate. Now when I started to move cameras over I reached max of crappy HW I have tested it on. I need to move to something more powerful.
I have 2011 v3 based server but it is quite power hungry beast with e5-2680 v3. I am thinking about swapping out just CPU to save $$ and go down with power consumption. I had in mind moving to low power e5-2608l v4 that is 8core 16 thread chip with 1.6 G base frequency.
I have read through this forum but couldn`t really find an answer - how much cores/threads can BI utilize and how important single core speed is ?? I`d be really grateful for hints as testing this myself is about 2 days work - I have to migrate stuff that I have on this server right now just to see.

Regards, Mark

I have not seen or am aware of a limit to the number of cores. AFAIK, the more the better and I'm already using quite a few - albeit on pretty old processors.

As for clock speed vs number of cores and which being better.... thats a hard call. This site has samples of real-world BI installs that you should be able to extrapolate what you're looking for. https://biupdatehelper.hopto.org/default.html#stats

Thank you very much for the link. It gives some general idea what to expect.
I was thinking about this core speed issue and come up with very easy to perform test scenario - I am ashamed of myself I didn`t think about it earlier ! What I did:
- I measured long enough average utilization of the CPU clocked at 4.1 GHz and it was between 68-70% on average. Depending on idle or triggered state.
- clocked exporting sample clip to mp4
- Downclocked CPU to 2.2 GHz and measured the same average utilization to be 70-73%
- exported the same clip
- checked overall responsiveness of the UI, logs for deepstack timings etc.
Observations - when running as a background service I don`t see any negative impact after reducing CPU frequency by almost half. While working with the UI I didn`t notice major impact. It is a little bit more sluggish, but it is not painful. With deepstack running on GPU I did not see any impact in average processing times (some operations have to be CPU dependent). Reencoding took longer - this is probably done exclusively on CPU.
Conclusion - single core speed do not matter that much, with CPU`s with higher IPC than my ancient amd fx4100 I tested it on it will matter even less. I decided to go for low power consumption, low clock high core count Xeon.

Shared my experiment as maybe someone in the future will find it useful.

Nice one. Thanks for the info.