PCI-64: how to find
David Geldreich
David.Geldreich at sophia.inria.fr
Mon Feb 25 07:47:46 PST 2002
Hello Mikhail,
I am currently evaluating an Intel Pro/1000 fiber in a PCI 64/66
slot.
The information about PCI 64/66 is found in the driver info:
cat /proc/net/PRO_LAN_Adapters/eth0.info
Description Intel(R) PRO/1000 Network Connection
Part_Number a38888-002
Driver_Name e1000
Driver_Version 3.1.23
PCI_Vendor 0x8086
PCI_Device_ID 0x1001
PCI_Subsystem_Vendor 0x8086
PCI_Subsystem_ID 0x1003
PCI_Revision_ID 0x02
PCI_Bus 0
PCI_Slot 9
PCI_Bus_Type PCI
PCI_Bus_Speed 66MHz
PCI_Bus_Width 64-bit
I have tested bandwidth with ttcp talking to 19 100Mb/s machine and
got 930 Mbit/s bandwidth in either direction.
I am currently having problem with fullduplex; the driver and my
switch are telling fullduplex, but doing ttcp in both direction
simultaneously gives only 520Mbit/s in both direction (a total of
1040Mbit were I expect 1800Mbit).
Is there (objective) comparison chart (bandwidth + latency) of
Gigabit ethernet vs Myrinet vs Dolphin ?
Thanks in advance.
Mikhail Kuzminsky wrote:
>
> Dear netters.
>
> I want to find some confirmation that my installed
> RH 7.2 "understand" that it works with PCI-64.
> (We are using some dual mobos from Tyan which supports
> 64-bit PCI slots). We have Intel Pro1000T NICs installed
> in PCI-64 slots, but I didn't find any information
> that Linux works in "PCI-64" mode.
>
> May be this information must be presented somewhere
> (/proc/pci, /var/log/messages etc ) ?
>
> Thanks for help !
>
> Mikhail Kuzminsky
> Zelinsky Institute of Organic Chemistry
> Moscow
>
> _______________________________________________
> Beowulf mailing list, Beowulf at beowulf.org
> To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
More information about the Beowulf
mailing list