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Old 01-08-2004, 01:12 AM   #1
LQ Newbie
Registered: Aug 2003
Location: Seattle
Distribution: Gentoo
Posts: 15

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Linux is slower than XP with same gigabit network card.

I'm hoping my title will rouse a few people who may be able to help.

I have a 1 redhat 9, 1 Gentoo, and 2 WinXP boxes. All have intel 1000/mt pro network cards. All connected through a Trendnet gigabit switch. But I'm experienceing really slow speeds to and from the linux boxes not just with samba, but apache and ftp as well.

Test Results
XP --to> and <from-- XP = 24mb/sec (700mb in 30sec)
XP --to> SAMBA = 5.8mb/sec (700mb in 120sec)
SAMBA --to> XP = 12.7mb/sec (700mb in 55sec)

results same with webclient off and qos off


downloads at 13.5mb/sec

Aren't these 100/baseT speeds?

e1000 is loaded as a module on both linux boxes

and ethtool produces this:

ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: d
Link detected: yes

Any expert suggestions?
Oh -- All cables are cat5

Last edited by will_k; 01-08-2004 at 01:16 AM.
Old 01-08-2004, 01:35 AM   #2
Registered: Dec 2003
Location: Australia
Distribution: Mandrake 9.2
Posts: 151

Rep: Reputation: 30
what is the cpu doing(in %) on the linux box, and what speed do u get with ftp from linux->linux.
also install linux 2.6 as there 1gig and 10gig drivers are more better supported by the kernel.
Old 01-08-2004, 01:57 AM   #3
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Registered: Aug 2003
Location: Seattle
Distribution: Gentoo
Posts: 15

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top shows cpu at 23%

I might try the 2.6 later. As for now, i'm gonna try intalling the current e1000 kernel module with the driver disk that came with my card and see if i get any better luck.




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