gnome-system-monitor reports wrong upload/download speed

[Michael]

Binary package hint: gnome-system-monitor

1) upload/download a big file with azureus/firefox whatever.
2) start gnome-system-monitor
3 look at the graphics tab (3rd tab of gnome-system-monitor) at the Network graphs.
  They show incorrect upload and download values. The values jumps from zero to the value of the up / download very fast
  I shall also include a screen shot of this behavior.
Version gnome-system-monitor: 2.18.1.1
Version Ubuntu (Feisty):
cat /proc/version:
Linux version 2.6.20-15-generic (root@palmer) (gcc version 4.1.2 (Ubuntu 4.1.2-0ubuntu4)) #2 SMP Sun Apr 15 07:36:31 UTC 2007

ProblemType: Bug
Architecture: i386
Date: Sun Apr 22 15:10:42 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/gnome-system-monitor
Package: gnome-system-monitor 2.18.1.1-0ubuntu1
PackageArchitecture: i386
ProcCmdline: gnome-system-monitor
ProcCwd: /home/michael
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=nl_NL.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-system-monitor
Uname: Linux droef.nl 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux

[Michael (m-gruys)]

screen shot of wrong upload / download speeds of gnome-system-monitor

[Sebastien Bacher (seb128)]

Thank you for your bug. Does it happen when using apt-get to install something? It might be than your download is not constant

[Michael (m-gruys)]

It does happen by every upload or/and download.
Also by apt-get install
My download is very constant.
Example
When I install software with apt-get install, then the right download-speed is shown in the progress info in the terminal.
Also when downloading/ upping with Azureus a constant speed will be shown be in the upload/download statistics.
As a proof a have added a screen dump of Azureus when downloading a torrent.
Also Wireshark (previously named ethereal) show also a constant speed of the up and downloads.
I hope you believe me and can solve this issue.
If you need more info, please ask me.

[Sebastien Bacher (seb128)]

your comment is not clear, do you have the same bug when using apt-get?

[Michael (m-gruys)]

Yes. I have the same bug using apt-get.

[Sebastien Bacher (seb128)]

marking unconfirmed then, it works fine on my desktop, somebody getting the bug will need to work on it, that's likely an upstream one

[Michael (m-gruys)]

Some additional hardware info from lshw (attachment)
Maybe it helps someone who has the same hardware / configuration to fix the bug.
It could be related to the hardware configuration.
Thanks for now

[Michael (m-gruys)]

FYI
Just another proof of strange behavior network graphic.

[Pedro Villavicencio (pedro)]

Are you still facing this problem with Gutsy Gibbon? May you try to reproduce it there? you may grab a CD Image from here: http://www.ubuntu.com/testing/ thanks in advance.

[Michael (m-gruys)]

I will test it on GG. THAT is for SURE I still have to download and install GG. It it a risk because I have only ONE computer. I have to make an apart partition for it which I will create specially for this case.
I am also very curious if it still exists in GG. It can take a while before I post the results of the test (hopefully BEFORE the release)

[Michael (m-gruys)]

I have already tested it with the latest development GG release of Ubuntu Tribe 5 Released August 23rd, 2007
I've tested it with the Live CD, so without installing it on a partition.
Unfortunately the problem STILL exists.
I have made a new screen dump as proof.
However, another graphic tool pload displays correctly the graphical network activity; but this works also on my current FF (Feisty Fawn).
It is a cosmetic problem, so very low priority in my opinion.
Sorry to give this (bad) news.
Good luck to anyone who tries to solve this.

[Michael (m-gruys)]

Also the case at Ubuntu 8.04.
I'm really curious if there is someone out there with the same hardware and the same symptoms.
Again a screenshot with the latest gnome-system-monitor

My hardware:
Moederbord Boxed Intel® Desktop Board DQ965GF
Processor Intel Core 2 Duo Processor E6600 (BX80557E6600)
Geheugen 4x1 Gb (DDR2 800, Dual-channel)
HD 320 Gb Seagate SATA
nVidia NX7600 GS 256MB

[Pedro Villavicencio (pedro)]

thanks for your report, the bug needs to be forwarded upstream by someone experiencing the issue, for forwarding instructions please have a look to https://wiki.ubuntu.com/Bugs/Upstream/GNOME ; leaving this as incomplete until that, thanks.

[Michael (m-gruys)]

Reported on
http://bugzilla.gnome.org/show_bug.cgi?id=532995

[Pedro Villavicencio (pedro)]

upstream said it's a linux kernel issue rather than an application one, re assigning accordly.

[Michael (m-gruys)]

Also a good 'workaround' for me to omit this behavior is to set the refresh rate (at preferences menu gnome-system-monitor) at a higher or equal value than four.

[Leann Ogasawara (leannogasawara)]

Hi Michael,

I linked the upstream bug report at the kernel bugzilla ( http://bugzilla.kernel.org/show_bug.cgi?id=10600
 ) to this launchpad bug report. It seems the bug reporter from upstream commented this was resolved with the 2.6.25 kernel. Would you be willing to test the latest Alpha for the upcoming Intrepid Ibex 8.10 release which contains and even newer 2.6.26 based kernel. For information regarding the latest Alpha release for Intrepid refer to http://www.ubuntu.com/testing . Please let us know your results if you are able to test. Thanks in advance.

[Michael (m-gruys)]

No real test-machine(s) available at the moment (for at least 4 months).
Is the test still valid when executing on Sun xVM VirtualBox 1.6.4?
Please let me know.
Regards, Michael

[Leann Ogasawara (leannogasawara)]

Hi Michael,

Even if you are unable to test via real hw, I think it would be good to know your results testing using virtualbox. I found bug 207415 which I've marked as a duplicate of this. Maybe DelSol - the bug reporter from the duplicate bug can also help test and give feedback. Thanks.

[Michael (m-gruys)]

Unfortunately the gnome-system-monitor cannot YET tested with the Sun xVM VirtualBox 1.6.4 (host=Ubuntu 8.04) :-(
I downloaded the Alpha 3 - Released July 24th, 2008 Ubuntu 8.10.
I created & started successfully a new Virtual Machine and used the .iso with the following settings (see picture 1.png)
After choosing the first option (Try Ubuntu without..) or the second (Install Ubuntu) option the Virtual Machine caused a Kernel panic (see picture 2.png)
So on emulated hardware I was (YET) not able to start the Alpha 3 version of Ubuntu 8.10.
To be continued...

[DelSol (home-snkplay)]

Well, the problem is gone now. I don't really know when it happend, but I guess one of the updates fixed it since I didn't change my hardware. I changed one thing tho - I am using WiFi now instead of a normal ethernet cable. I can't really recall if that could have "fixed" the problem. Sorry.

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Michael (m-gruys)]

BUG SOLVED

Very good news!
This bug is completely solved with an Linux 2.6.27-1-generic #1 SMP Sat Aug 23 23:20:09 UTC 2008 i686 GNU/Linux kernel!

Even when a very low refresh is chosen (=0,25s = ultra low!), then the graphic keeps still up with the right speed!
The kernel I used for this test is the linux-image-2.6.27-1-generic_2.6.27-1.2_i386.deb package downloaded from http://fr.archive.ubuntu.com/ubuntu/pool/main/l/linux/linux-image-2.6.27-1-generic_2.6.27-1.2_i386.deb. I installed this package without any problems on a Ubuntu 8.04 system with an 2.6.24-21-generic #1 kernel.

If any further info is needed place let me know.
Michael

[Leann Ogasawara (leannogasawara)]

Hi Michael,

Thanks for testing and the feedback. I'm marking this "Fix Released" against Intrepid. Please reopen if you see any regressions with this prior to Intrepid's final release (ie set status back to "New"). Thanks.