Apple

On Apr 30, 2008, at 12:42 PM, Tom Scogland wrote:

Hi,
I seem to be having a similar problem to the one detailed in http://lists.apple.com/archives/x11-users/2007/nov/msg00728.html except that I've run the 10.5.2 version, 2.2.1, and 2.1.4 and all of them end up eating 300+ MB of memory after a few days. The confounding part is, the only thing I have run under X11 in those days is xterms, plain old everyday xterms, no rdesktop or anything of the kind and it still blows up. It seems to expand most across sleeps for some reason.

I'm running leopard 1.5.2 on a MBP, and currently running X11.app version 2.1.4. Attached is the output from `heap quartz-wm` with it currently sitting at 368.85MB of ram. If there is any assistance I can provide to make this problem go away I would be delighted to oblige.

Zone DefaultMallocZone_0x43000: 1027005 nodes (394483904 bytes)

   CLASS_NAME TYPE BINARY COUNT BYTES AVG
   ========== ==== ====== ===== ===== ===
   NSCFString ObjC CoreFoundation 394160 121666720 308.7
   NSCFData ObjC Foundation 375724 136259904 362.7
   <non-object> 130922 132499200 1012.0
   NSConcreteMutableData ObjC Foundation 125254 4008128 32.0
   __NSCFDate ObjC CoreFoundation 182 2912 16.0

Those first three lines are highly suspicious. For reference, I left quartz-wm running overnight on my iMac, and slept it a couple of times, and I have:

<non-object> 3409 258272 75.8

NSCFString ObjC CoreFoundation 1055 28832 27.3

NSCFDictionary ObjC Foundation 88 5824 66.2

NSCFArray ObjC Foundation 54 1760 32.6

NSCFNumber ObjC Foundation 39 624 16.0

The next time you see this, can you try running "leaks quartz-wm" and see if it reports any leaks? If not, my next suggestion would be to try running Amit Singh's gcore program (source at http://www.osxbook.com/book/bonus/chapter8/core/download/gcore-1.3.tar.gz, more info at http://www.osxbook.com/book/bonus/chapter8/core/) to take a coredump of the bloated process -- if you could then get that file to me, I should be able to see what's taking up so much space.

How soon does it start expanding? Does it start growing linearly as soon as you start running it, or do you need to run it for a few days before it starts growing?

-b

References:
	>quartz-wm memory once again (From: "Tom Scogland" <email@hidden>)