Hi, I just updated LR to 3.3 and noticed that LR consumes constantly around 35% of CPU when idle (no export, no rendering, etc.).......
I left "rest" for 8 hours and still same effect, stop&restart and nothing changes.
My environment: Windows XP SP3, 2 GB RAM.
I don't think that you should blame LR for this usage. With Firefox and a mail programme open behind LR my CPU usage sits at 1% with occasional blips to 3 or 4%. Have you checked the Task Manager to see which process is using the cycles, or is that where you got your figure?
Building thumbnail cache? Previews? Check the size of your thumbnail cache, then do the same 10 minutes later. If it's different, then it's the cache. Check the size of the previews directory at the same time, if that's different, then it's your previews.
Well..., the "xxx Previews.lrdata" folder (that includes the previews) does not change (exactly same size after 3 hours that Lightroom is running, consuming 40% of CPU).
The task manager also shows that the lightroom process keeps on writing on disk about 20 KB per second (and it has been constant in the past 3 hours)... but what is it writing ?
Giuseppe Covino wrote:
I got it! It was a Lightroom plugin that evidently has conflicts with Lightroom 3.3...
Thanks for the advice that can be useful for someone else's investigation.
It would be helpful to others if you identified the plug-in. Notifying the author of the plug-in would also be a good idea.