On Wed, Mar 7, 2012 at 6:01 AM, Bruce Walker <[email protected]> wrote: > Godfrey, my Catalog folder is on the internal startup drive. Free > space on the startup drive is 132 Gig. My images are all on an > external 2G FireWire drive. > > I believe I'm following all the performance recommendations. I've > tried other arrangements and this seems to work best. > > AFAIK, the paging is occurring because I've run out of physical RAM > and the OS is trying to make do with virtual. I watch the System > Memory tab in the Activity Monitor frequently and I can see the free > space shrink away. I also see Lr's Real Mem, Virtual Mem usage climb > slowly into the stratosphere. Lr starts off using 470Meg of each, > eventually reaching 3 Gig each after an hour or two of previewing, and > a few dives into the Develop module. > > The only other app that's as bad as that (well besides Photoshop) is Safari. > :-/
I'll agree that Photoshop and Safari rank for my top memory hogs too. ! I see similar behavior in terms of LR taking more and RAM to operate as it works, up to about the 3-4G level, but then no more. The Activity Monitor might be 50% blue at that point with very little to no green left (on a 2.4Ghz Core 2 Duo machine with 8G RAM). The system is obviously paging. HOWEVER, everything continues to work well. When I exit LR, within a few moments the RAM is 50% green again. The fact that the system is paging doesn't stop it from operating correctly and without hesitation. Is your system acting aberrantly, aside from what you see in Activity Monitor? I normally don't have Activity Monitor active as I have not found much need to investigate and analyze memory and cpu operations most of the time. Perhaps the use of 6G RAM instead of the more commonly used 4G and 8G configurations is itself the issue. Perhaps the memory controller isn't as efficient in scavenging and doing reallocations with that memory size. I ran Lightroom 3 on a 4G MacBook Air with results similar to what I see on the (older) 8G MacBook Pro last evening. Memory on the MBA was certainly much tighter ... however, I previewed 400 18Mpixel raw images, edited a couple, etc, without any problems. I then switched to LR4 and found similar performance and slightly better memory usage, when I looked. In general, I don't really look so closely at the analytics unless I am experiencing a serious problem. And usually, with either LR or PS (and Safari!), occasionally closing the app and reopening it rather than working a several hour session non-stop really helps as they do use a tremendous amount of system resources. -- Godfrey godfreydigiorgi.posterous.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
