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Author Topic: aMule 2.2.1 - statistics not accurate ?  (Read 2739 times)

gyom

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aMule 2.2.1 - statistics not accurate ?
« on: July 24, 2008, 07:13:53 PM »
Hi all,

this is my first post, so let me begin with many thanks to all aMule developers. Keep up the good work, guys, this is a great piece of software.

I'm using aMule for mac os x since version 2.1.3, and I recently upgraded to 2.2.1 using a user-compiled package for mac os x (I'm using this build: http://forum.amule.org/index.php?topic=13920.0, so thanks to gtoso too). All the small defects of the previous version are gone, so I'm really happy with this version (and it is nicer to the eye).

However, I noticed that bandwith statistics are not accurate : the global download rate is not coherent with per-file download rates (see attached screenshot).

Am I the only one with this problem, or is it a known bug (or feature) ?

Thanks
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Stu Redman

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #1 on: July 24, 2008, 11:44:01 PM »
I have noticed this too (on Windows). Sometimes the download rates for the files stay quite constant, and so does the total rate, but somehowit doesn't add up.  :P
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wuischke

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #2 on: July 25, 2008, 09:55:09 AM »
This should be due to different times, i.e. the global download speed is updated at a different time than the individual speeds. If there are really big differences this might be a bug, but I expect it to be normal behavious caused by the timers.
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gyom

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #3 on: July 25, 2008, 10:03:47 AM »
Hi wuischke,

No, I do not think that timers are the cause of this problem. Like sturedman, incoherences also happen with very stable download rates. I had noticed some glitches in statistics in the previous versions, but this was only a matter of seconds before all figures got coherent.

In 2.2.1, I always get a global download rate which is clearly lower than the addition of individual rates.

This is no big deal, but I wanted to report it to the development team, as I suspect it is a bug.
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wuischke

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #4 on: July 25, 2008, 10:08:24 AM »
In this case, thanks a lot for the report, I'm sure Stu is already looking into it...  ::)
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GonoszTopi

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #5 on: July 25, 2008, 07:10:31 PM »
I suggest you better do a forum search before...

http://forum.amule.org/index.php?topic=8736.msg76366#msg76366
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Stu Redman

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #6 on: July 25, 2008, 10:59:39 PM »
Quote from: wuischke on July 25, 2008, 10:08:24 AM
I'm sure Stu is already looking into it...
You bet.  ;) Here's a patch for it.
I do accept the reasons for the difference, but no need to display it differently.
Since the total download rate is more precise according to GonoszTopi, I calculate a compensation factor from the total rate and the sum of all file download rates, and use it to adjust the file download rates. Now it sums up.

Agreed?

Edit: patch has no effect on remote gui (but at least doesn't break it any more)
« Last Edit: July 27, 2008, 12:07:53 AM by sturedman »
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gyom

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #7 on: July 27, 2008, 05:38:40 PM »
Hi all,

I still wonder how things are calculated (and no, I will not read the code, sorry :-), because the total transfer rates does not seem to me to be just a "longer average" of the same value. However, it is not very annoying, so like in the other forum thread, I will just ignore the "total transfer" displayed in the main window (If I understood right, the long-run statistics *are* coherent anyway, so great)

Stu, thanks for you patch, but as I said, I will probably not have the energy and everything to recompile aMule just to fix this. But will this patch be commited in the SVN ? If so, things will get fixed for everyone with the next release.

Thanks a lot anyway !
-Gyom
« Last Edit: July 27, 2008, 05:44:40 PM by gyom »
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Stu Redman

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Re: aMule 2.2.1 - statistics not accurate ?
« Reply #8 on: July 27, 2008, 11:31:09 PM »
Patch is in SVN (slightly modified - transfer rates of sources are now adjusted to).
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The image of mother goddess, lying dormant in the eyes of the dead, the sheaf of the corn is broken, end the harvest, throw the dead on the pyre -- Iron Maiden, Isle of Avalon