Wireshark mailing list archives

Re: New packet list - out of memory?


From: didier <dgautheron () magic fr>
Date: Wed, 07 Oct 2009 03:09:52 +0200

Le mardi 06 octobre 2009 à 15:30 -0400, Jeff Morriss a écrit :

Trying that on Linux (64-bit) with a capture file of mine, I get (all 
with SVN 30347, new packet list):

(no env settings)
CPU time ("user time" from 'times'): 40.491 seconds
VSZ (from ps aux): 995,644

With WIRESHARK_DEBUG_SE_NO_CHUNKS set:
CPU time: 43.048 seconds
VSZ: 1,128,076

With WIRESHARK_DEBUG_EP_NO_CHUNKS and WIRESHARK_DEBUG_SE_NO_CHUNKS set:
CPU time: 48.536 seconds
VSZ: 1,120,308


(It's a bit odd that memory usage goes up when chunks are off.)
In this case wireshark allocates a emem_chunk_t (28 bytes on a 32bits
system) for each ep/se_alloc call.
 

Maybe Windows doesn't like big (10Mb) allocations?  Another thing is
Maybe an option would be to replace it with g_malloc.

Didier


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