Wireshark-bugs: [Wireshark-bugs] [Bug 4037] Automatically scrolling up
Date: Wed, 27 Jan 2010 20:12:35 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4037

--- Comment #9 from Jim Young <jyoung@xxxxxxx> 2010-01-27 20:12:29 PST ---
On program exit with a Window XP build and the "Test patch" applied I can
consistently see the following assert:

20:29:57          Crit file packet_list_store.c: line 426: assertion
`iter->user_data' failed

Steps to the trigger the assert (assuming the preference "Open a console
window" = "Always (debugging)"):

1 Start Wireshark
2 Click on one of the previously opened files in "Open Recent:" list (this
should open the file).
3 Wait for file to load.
4 Shutdown Wireshark by entering Alt-F4 (or click on Window's upper left
"Close" [X] widget).

Interestingly if I change step 4 and shutdown Wireshark by entering CTRL-Q (or
select the "File | Quit" menu item) the assertion is not triggered.

@Anders - in response to Comment #7

I did a number of repeat tests opening two moderately large files (50MB -
180749 frames and 78MB - 75911 frames).  

Without the "Test patch" applied: the 50MB file loaded between 8.9 and 9.1
seconds (with one 3.1 second outlier[*]); the 78MB file loaded between 4.9 and
5.2 seconds (with two 1.8 second outliers[*]).

With the "Test patch" applied: the 50MB file loaded between 7.8 and 7.9
seconds; the 78MB file loaded between 3.8 and 4.1 seconds.

So the "Test patch" appears to help reduce file loading speed. :)

And as a matter of comparison of these new packet list load speeds versus the
old packet list, I did the same file load tests with the newest public release
V1.2.6: the 50MB file loaded between 37.0 and 38.4 seconds; the 78MB file
loaded between 21.0 and 21.4 seconds. 

[*] Outliers - With the new packet list occasionally the trace files will
unexpectedly load MUCH quicker then expected.  When this happens the Status
dialog (nn% of Loading) is not displayed and there are no intermittent packet
list updates until the entire file has loaded.

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