Re: Browser resource usage
Re: Browser resource usage
- Subject: Re: Browser resource usage
- From: Tom Bayley <email@hidden>
- Date: Fri, 7 Feb 2003 12:22:50 +0000
Quinn,
I've waited until Safari is looking bloaty again. This time top says:
738 Safari 0.5% 42:28.26 7 392 14061 43.3M 46.6M 51.1M
206M
Have done a check with vmmap as you suggested and the only thing that
looks obviously odd is the apparent stack usage:
Stack f0112000 [ 512K] rw-/rwx SM=PRV
... another 100+ lines like the above...
Stack f3a63000 [ 512K] rw-/rwx SM=PRV
ff002000 [12272K] rw-/rw-
SM=SHM
(So over 50M of stack!?)
And the summary is:
==== Summary for process 738
ReadOnly portion of Libraries: Total=50936KB resident=23056KB(45%)
swapped_out_or_unallocated=27880KB(55%)
Writable regions: Total=178324KB written=79972KB(45%)
resident=81224KB(46%) swapped_out=4688KB(3%) unallocated=97098KB(54%)
Any ideas?
Tom
On Tuesday, February 4, 2003, at 07:55 am, Quinn wrote:
At 14:21 +0000 3/2/03, Tom Bayley wrote:
Sorry if this is off topic, but I thought you guys would best be able
to answer my question. Can anyone explain why browsers such as
Explorer and Safari consume such a lot of VM?
I haven't looked into this myself, but I can give you some ideas on
how to investigate it. Specifically, there are a bunch of performance
tools documented in "IMOSX: Performance".
<http://developer.apple.com/techpubs/macosx/Essentials/Performance/
index.html>
The one I'd run is "vm_map". This will tell you, in very broad terms,
what that address space is being used for.
S+E
--
Quinn "The Eskimo!"
<http://www.apple.com/developer/>
Apple Developer Technical Support * Networking, Communications,
Hardware
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