[TxMt] Is TM memory hog? 10MB text file makes TM use 564MB of RAM
ono at java.pl
Tue May 20 11:28:35 UTC 2008
Thanks for the response Allan,
Currently my only concern is the fact that setting such a file to be
"Plain Text" makes TM eat 564, while setting it to something else...
makes TM use just 137 MB.
Over 400MB difference just because of source file language/grammar
looks suspicious for me.
And now regarding the memory reclamation...
> See http://kevin.sb.org/2007/07/05/malloc-free-space-not-reclaimed/#comment-247
Using vmmap when opening large file TM using ~560MB:
> MALLOC_SMALL 19000000-2f000000 [352.0M] rw-/rwx SM=COW
> MALLOC_SMALL 2f800000-33000000 [ 56.0M] rw-/rwx SM=COW
After a while, closing large file, TM still using 538MB of real memory:
> MALLOC_SMALL (freed) 19000000-2f000000 [352.0M] rw-/rwx SM=PRV
> MALLOC_SMALL (freed) 2f800000-32800000 [ 48.0M] rw-/rwx SM=PRV
MALLOC_TINY was < 100MB all together.
So it seems tose 400MB that are freed are still kept by the OSX, which
is IMHO pretty lame behavior. I just wonder it there's any kernel
function to trigger VM flush/cleanup.
Alternative solution I can see is writing own memory pool that uses
vm_allocate. Is this feasible Allan?
Adam Strzelecki |: nanoant.com :|
More information about the textmate