Jump to content

Execution units & multi-core processors

Recommended Posts

We just upgraded from a single core, single-processor backup server to a server with a quad-core processor.


I had hoped Retrospect would take advantage of multiple cores... that two execution units running simultaneously would each run at the same speed as a single execution unit as long as they weren't using the same disks.


This doesn't seem to be the case... right now I'm running two different backup set transfers involving completely separate backup sets. If I pause one, the other gets twice as fast (this is especially obvious when watching disk transfer rates in perfmon). The processor utilization (about 40%) remains constant.


This suggests to me that while Retrospect is multithreaded to some extent (otherwise it would be stuck at 25% utilization on a quad-core system), it does not seem to utilize more than two processor cores at once, regardless of how many execution threads are running.


Is that correct? Are there any plans to change that?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...