Very BAAAD Network performance after a few hours... [SOLVED]

[kikokikok]

Ok here's my setup:
2 Gigabit switches: 5 devices on each.
I've been diagnosing the network for weeks now... No clue about the problem.
Any ping between any device except bubba gives satisfying results.
Here's the ping average between any device and the Bubba Two:

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PING bubba (192.168.1.68): 56 data bytes
64 bytes from 192.168.1.68: seq=0 ttl=64 time=1.484 ms
64 bytes from 192.168.1.68: seq=1 ttl=64 time=1.725 ms
64 bytes from 192.168.1.68: seq=2 ttl=64 time=1.464 ms
64 bytes from 192.168.1.68: seq=3 ttl=64 time=9.578 ms
64 bytes from 192.168.1.68: seq=4 ttl=64 time=119.619 ms
64 bytes from 192.168.1.68: seq=5 ttl=64 time=417.952 ms
64 bytes from 192.168.1.68: seq=6 ttl=64 time=122.806 ms
64 bytes from 192.168.1.68: seq=7 ttl=64 time=1010.440 ms
64 bytes from 192.168.1.68: seq=8 ttl=64 time=970.218 ms
64 bytes from 192.168.1.68: seq=9 ttl=64 time=69.863 ms
64 bytes from 192.168.1.68: seq=10 ttl=64 time=1.180 ms
64 bytes from 192.168.1.68: seq=11 ttl=64 time=740.059 ms
64 bytes from 192.168.1.68: seq=12 ttl=64 time=990.244 ms
64 bytes from 192.168.1.68: seq=13 ttl=64 time=1010.445 ms
64 bytes from 192.168.1.68: seq=14 ttl=64 time=19.536 ms

compared to another device on the same switch:
64 bytes from 192.168.1.65: seq=0 ttl=64 time=0.459 ms
64 bytes from 192.168.1.65: seq=1 ttl=64 time=0.214 ms
64 bytes from 192.168.1.65: seq=2 ttl=64 time=0.214 ms
64 bytes from 192.168.1.65: seq=3 ttl=64 time=0.213 ms

Informations about the bubba 2:
=====================

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bubba:~# ethtool eth1
Settings for eth1:
	Supported ports: [ MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised auto-negotiation: Yes
	Speed: 1000Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 0
	Transceiver: external
	Auto-negotiation: on
	Current message level: 0x0000003f (63)
	Link detected: yes

The top command:

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 2453 squeezec  20   0 76676  64m 4620 S  1.3 25.7  14:03.12 squeezecenter-s    
 4593 root      20   0  2976 1252  996 R  1.3  0.5   0:00.38 top                
 2084 mysql     20   0  126m  28m 5948 S  0.3 11.4   4:11.01 mysqld             
 2197 root      20   0 61620 6992 6032 S  0.3  2.7   1:24.37 ftd.bin            
    1 root      20   0  2436  760  660 S  0.0  0.3   0:02.44 init               
    2 root      15  -5     0    0    0 S  0.0  0.0   0:00.00 kthreadd           
    3 root      15  -5     0    0    0 S  0.0  0.0   0:17.68 ksoftirqd/0        
    4 root      15  -5     0    0    0 S  0.0  0.0   0:58.58 events/0           
    5 root      15  -5     0    0    0 S  0.0  0.0   0:00.08 khelper            

the ifconfig eth1

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eth1      Link encap:Ethernet  HWaddr 00:22:02:00:03:C3  
          inet addr:192.168.1.68  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::222:2ff:fe00:3c3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:743474 errors:0 dropped:0 overruns:0 frame:0
          TX packets:635014 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:592647694 (565.1 MiB)  TX bytes:592592169 (565.1 MiB)

Already done the latest update and checked if it was working...
Any idea or suggestion would be more than welcome !

Thanks

[kikokikok]

It seems like it happens when the bubba streams video with mediatomb from a CIFS/Samba shared drive...

I would really need some help on this one

Thanks

[jonte]

It seems like it happens when the bubba streams video with mediatomb from a CIFS/Samba shared drive...

I would really need some help on this one

Thanks

I've experienced similar problems.
I've also found the weirdest connection to Mediatomb. This sounds really strange, and sort of "out of this world". I can't explain why but it has solved the problem for me twice.

Scenario: For instance watching a movie on my PC via a b2 samba share. The B2 goes unresponsive via samba, network performance low. I then start my PS3 also connected to B2. The Ps3 doesn't find B2 Mediatomb server from start, but after 30 secs to a minute the B2 Mediatomb server pops up in the PS3 XMB. Then when I go back to using the PC, the performance is back to normal.

Like I said, this sound strange as heck. I don't even know 100% that that is the reason why it goes back to normal. But it has worked on two occations. But it makes me suspect a Mediatomb-related issue of some sort.

//Jonte

[dan13l]

Same problem here. I haven't really looked into debugging it yet though, I just restart Bubba from my iPhone and all's well for a bit.

I've noticed it when streaming video from an SMB share, and also doing network file copies using the same and CIFS.

I might try removing Mediatomb and seeing if the problem goes away.

[johannes]

Hi all,

This is probably symptoms on an issue we are working on right now, and if that's the case, it's nothing you can fix yourselves. However, be assured that we are struggling with it, and do have a solution in testing phase right now. We'll keep you posted.

Thanks for your patience.

[kikokikok]

Thanks !
Pleased to hear that )

[peterb]

Any news on this fix? I need to restart my Bubba every third day or so because of this slow network issue..

[johannes]

Ok, fix is released!

http://forum.excito.net/viewtopic.php?t=1685