Wireshark · Wireshark-dev: Re: [Wireshark-dev] Performance degradation in trunk

[Martin Mathieson <martin.r.mathieson@xxxxxxxxxxxxxx>]

You load it into kcachegrind.  I found a compiled windows version on sourceforge (I think http://sourceforge.net/projects/precompiledbin/).

Martin

On Thu, Sep 12, 2013 at 1:54 PM, Anders Broman <anders.broman@xxxxxxxxxxxx> wrote:

-----Original Message-----
From: wireshark-dev-bounces@xxxxxxxxxxxxx [mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Evan Huus
Sent: den 12 september 2013 13:15
To: balint@xxxxxxxxxxxxxxx; Developer support list for Wireshark
Subject: Re: [Wireshark-dev] Performance degradation in trunk

On 2013-09-12, at 5:40 AM, Bálint Réczey <balint@xxxxxxxxxxxxxxx> wrote:

>> Could they analyze perf results or run git bisect to find the point
>> when the degradation started?

>Since this is on Ubuntu (which can run valgrind) just use the -p option to tools/valgrind-wireshark.sh and it will produce a performance profile. Do that for >both builds and we'll have something to work with.
>
>Evan

Here's the output from "trunk", how do you get anything useful from it?
/Anders

>PS I suspect some new heuristic dissector has been introduced, since none of the other changes from 1.8 to trunk are likely to have such a significant >performance impact.

> Cheers,
> Balint
>
> 2013/9/12 Anders Broman <anders.broman@xxxxxxxxxxxx>:
>> Hi,
>>
>> I recently supplied some people with an internal build from recent
>> trunk and got complaints on performance. Switching back
>>
>> To the default Wireshark on the Ubuntu 13.04 system 1.8.2 reading of
>> a 400M trace file with SIP Diameter etc traffic is more than twice as fast.
>>
>> Regards
>>
>> Anders
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