OS X (10.6.4) memory
in [UK Mac]
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From: Mike Zanker on 29 Jul 2010 06:17 Hmm, I've also noticed markedly increased slowness and swapping since either Safari 5 or OSX 10.6.4 were installed. Not entirely sure which is to blame as I installed both around the same time. Having a low Free Memory figure isn't a problem in itself, it just means that the OS has it all under control. When it's affecting performance, though, it's a problem. I have a Mac Pro with 4GB RAM and rarely saw swap file sizes above 1GB (2GB in extreme circumstances) - now it seems that 2GB is the norm and 3GB is not unusual. Mike On 28/07/2010 14:42, Tim Streater wrote: > Well, I dunno what's going on. From time to time I seem to run out of > green memory (the Free stuff as shown by Activity Monitor). It goes down > to a few Mb, after which I typically restart Safari (5.0, will be 5.0.1 > right after this message) and then I'm back to about 600Mbytes (this is > a 1.8 Core 2 Duo Mini maxed at 2Mbytes RAM). I've taken to having > Activity Monitor up so I can see what's happening. > > This cycle repeats itself, so turned off Top Sites, but today took the > biscuit. According to AM, Free Memory suddenly dipped below 1Mbyte, so > Safari (for it was he) embarked on some kind of memory purge that took > about 15 mins to complete, and requiring it to consume some 50% of a CPU > during this process (all according to AM). After this Free was back up > to 600Mbytes. > > I am running an application with several k lines of JavaScript under > Safari, so this may be implicated, but turning it off never seemed to > free up any memory. > > Memory seems to switch between being Free or Active - the Inactive and > Wired don't seem to vary much. > > Any suggestions for what's going on or remedies appreciated. I've even > got the Safari Debug menu up (in addition to the Develop one, that is) > but I can't see anything on it which might be useful. >
From: Rowland McDonnell on 29 Jul 2010 10:56 Tim Streater <timstreater(a)waitrose.com> wrote: > Well, I dunno what's going on. From time to time I seem to run out of > green memory (the Free stuff as shown by Activity Monitor). It goes down > to a few Mb, after which I typically restart Safari (5.0, will be 5.0.1 > right after this message) and then I'm back to about 600Mbytes (this is > a 1.8 Core 2 Duo Mini maxed at 2Mbytes RAM). I've taken to having > Activity Monitor up so I can see what's happening. > > This cycle repeats itself, so turned off Top Sites, but today took the > biscuit. According to AM, Free Memory suddenly dipped below 1Mbyte, so > Safari (for it was he) embarked on some kind of memory purge that took > about 15 mins to complete, and requiring it to consume some 50% of a CPU > during this process (all according to AM). After this Free was back up > to 600Mbytes. > > I am running an application with several k lines of JavaScript under > Safari, so this may be implicated, but turning it off never seemed to > free up any memory. > > Memory seems to switch between being Free or Active - the Inactive and > Wired don't seem to vary much. > > Any suggestions for what's going on or remedies appreciated. I've even > got the Safari Debug menu up (in addition to the Develop one, that is) > but I can't see anything on it which might be useful. No idea about any details, but: Any time I do the Mac voodoo dance (`run all jobs' in Applejack, and then do all the other routine maintenance jobs that it misses, then reboot at the login screen before finally logging in) - any time I do that, I find things go faster and use less memory for a while at least. Always worth a go as the first shot - often works, sometimes makes no difference. I've noticed that the Finder here (10.6.4) tends to use a lot of CPU if I have a lot of Finder windows open - but only /sometimes/. Not got much of a clue yet, but you might think along those sorts of lines. Rowland. -- Remove the animal for email address: rowland.mcdonnell(a)dog.physics.org Sorry - the spam got to me http://www.mag-uk.org http://www.bmf.co.uk UK biker? Join MAG and the BMF and stop the Eurocrats banning biking
From: Jim on 29 Jul 2010 11:04 On 2010-07-29, Rowland McDonnell <real-address-in-sig(a)flur.bltigibbet.invalid> wrote: > > I've noticed that the Finder here (10.6.4) tends to use a lot of CPU if > I have a lot of Finder windows open - but only /sometimes/. Not got > much of a clue yet, but you might think along those sorts of lines. Interesting - I wonder if it has anything to do with generating preview icons? I'll look out for that here, see if I see anything similar. How are you measuring the memory usage? Activity Monitor? Jim -- Twitter:@GreyAreaUK "If you have enough book space, I don't want to talk to you." Terry Pratchett
From: Rowland McDonnell on 29 Jul 2010 11:04 Jim <jim(a)magrathea.plus.com> wrote: > Rowland McDonnell <real-address-in-sig(a)flur.bltigibbet.invalid> wrote: > > > > I've noticed that the Finder here (10.6.4) tends to use a lot of CPU if > > I have a lot of Finder windows open - but only /sometimes/. Not got > > much of a clue yet, but you might think along those sorts of lines. > > Interesting - I wonder if it has anything to do with generating preview > icons? I'll look out for that here, see if I see anything similar. How > are you measuring the memory usage? Activity Monitor? Yeah - but it's CPU that's noticably through the roof. With a mere 4GB RAM, I'm used to seeing it all chewed up. Rowland. P.S. `Mere' 4GB? 4GB not enough? What? What sort of a world are we in? -- Remove the animal for email address: rowland.mcdonnell(a)dog.physics.org Sorry - the spam got to me http://www.mag-uk.org http://www.bmf.co.uk UK biker? Join MAG and the BMF and stop the Eurocrats banning biking
From: Jim on 29 Jul 2010 11:09
On 2010-07-29, Rowland McDonnell <real-address-in-sig(a)flur.bltigibbet.invalid> wrote: > Jim <jim(a)magrathea.plus.com> wrote: > >> Rowland McDonnell <real-address-in-sig(a)flur.bltigibbet.invalid> wrote: >> > >> > I've noticed that the Finder here (10.6.4) tends to use a lot of CPU if >> > I have a lot of Finder windows open - but only /sometimes/. Not got >> > much of a clue yet, but you might think along those sorts of lines. >> >> Interesting - I wonder if it has anything to do with generating preview >> icons? I'll look out for that here, see if I see anything similar. How >> are you measuring the memory usage? Activity Monitor? > > Yeah - but it's CPU that's noticably through the roof. Woops. My mistake - for some reason I misread it as memory usage. Actually, CPU usage would make more sense if it's icon preview generation that's causing it. > With a mere 4GB > RAM, I'm used to seeing it all chewed up. > > Rowland. > > P.S. `Mere' 4GB? 4GB not enough? What? What sort of a world are we > in? It's the future, man. Jim -- Twitter:@GreyAreaUK "If you have enough book space, I don't want to talk to you." Terry Pratchett |