Can I get a swap file question in here? First some data:
MBA 4,2 with a 240gb SSD. The last 24 hours: boot 11:15 am Swap size = 0 GB With Mail & Safari (just 6 tabs) open 11:45 am Swap size = 8.26 GB Some more browsing, now with Chrome in the mix 3:15 pm = 15.9 GB 7:21 pm = 20.59 GB More browsing, playing some video through Airplay to an ATV Left on overnight (meaning no reboot) 11:00 am =39.81 GB The questions: If the swap file size is dynamic, shouldn't it shrink when I quit out of applications? Is anyone else seeing this kind of SWAP accumulation? Aye Yi Yi On Nov 22, 2013, at 7:59 PM, steve harley <[email protected]> wrote: > on 2013-11-21 15:41 LuKreme wrote >> >> On 21 Nov 2013, at 12:26 , steve harley <[email protected]> wrote: >> >>> Safari claiming 11GB of real memory >> >> That seems excessive. > > indeed, but it is just taking what it can; it would probably be lower if the > machine didn't have 16GB RAM, or higher if there weren't other apps competing > for RAM; in other words, in itself real memory is not a full measure of > memory status of an app > > >>> and 143GB of VM! >> >> That’s completely irrelevant. > > first note that this was VPRVT, not VSIZE > > knowing that VM is a matter of mapping address space, some of which is never > used and/or never transferred between RAM and disk, i still have a hard time > imagining what would need to be mapped to reach that figure, and it > correlated strongly with big performance problems > > in the above case i didn't capture swap usage, but another time i recorded > what may be a different syndrome — 8GB of real and 19GB of VPRVT for Safari > Web Content (aka WebProcess in top); in this case, with no other "giant" > processes, i had 30GB of swap in use; the implication is that a substantial > portion of VPRVT represented data moved at least once between RAM and disk; > in both cases system response was terrible due to swapping, and quitting and > relaunching Safari with the same tabs brought performance back to normal for > at least a couple of days > > _______________________________________________ > MacOSX-talk mailing list > [email protected] > http://www.omnigroup.com/mailman/listinfo/macosx-talk
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