Wireshark · Ethereal-dev: Re: [ethereal-dev] Ethereal memory leakage fix and feature enhancement

[Laurent Deniel <deniel@xxxxxxxxxxx>]

Guy Harris wrote:
> 
> > (performace simply sucks, if a 100MB trace file is loaded).
> 
> ...which needs to be fixed (some profiling results suggest that the
> heavy use of "printf"-family routines when generating the lines in the
> packet list display contributes significantly to this; making
> "ip_to_str()" and "ether_to_str()" generate the strings by hand helped a
> bit, but not a lot - and the "printf"-family routines and stuff they
> call still contributed a lot; Microsoft Network Monitor read in one
> large trace file significantly faster than did Ethereal), but, at least
> as a short-term workaround, it sounds as if a file-reading filter would
> be useful.

Some time ago, I made an improvement of the snprintf function (see
http://ethereal.zing.org/lists/ethereal-dev/199905/msg00108.html) because
some profiling tests show me that it was a particularly good point to
enhance. I think that the heavy use of some GTK functions also contributes
significantly to this loss of performance but I can't see really how since
the GTK library was not profiled when I performed the tests.


--
Laurent DENIEL        | E-mail: deniel@xxxxxxxxxxx
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