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On Mon, Jan 18, 2010 at 6:50 AM, Stroller |
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<stroller@××××××××××××××××××.uk> wrote: |
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> Hi there, |
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> |
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> Yesterday I reseated the network cable between my server cupboard and my |
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> desk, and it now lights up on the switch by my desk as gigabit. But a |
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> file-transfer today is slower than I might have hoped. |
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> |
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> I'm not ruling out the cable, because it's pretty beat up (but the switch |
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> *is* lighting up as 1000), but how do I determine, please, that the Linux |
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> server at the other end is recognising the NIC and negotiating as gigabit |
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> speeds? |
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> |
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> The hard-drives on the server are using an older PCI SATA card, and the NIC |
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> is also PCI. But I would have expected it to be a bit faster than 100Mbps. |
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> |
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> Any estimates over what kind of speed I should be seeing for large |
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> file-transfers over Samba? Wildly ball-park is fine - I wouldn't expect a |
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> 10x speed increase, but maybe 2x or 3x - 4x would be great! |
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> |
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> I'll be testing between my Macs (both on the desktop switch, ruling out both |
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> the Linux box and the suspicious cable) later today, I'd just like some |
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> ideas of where I should be starting from. |
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> |
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> Right now I'm seeing 10 gigs of .mp4 files (1gb - 2gb per video file) taking |
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> about an hour - that's about what I'd expect from old 100Mbps networking, |
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> not this shiny new stuff. |
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> |
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> I'm not seeing any difference commenting & uncommenting "aio read size = 1, |
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> aio write size = 1" (separate lines) from /etc/samba/smb.conf and then |
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> running `/etc/init.d/samba reload`, but maybe I shouldn't expect that to |
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> make any difference on an existing transfer. I just don't want to interfere |
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> with this right now - I just want to copy as much as possible on to my |
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> laptop before I go out, and I'll take a look at this performance issue when |
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> I get home. |
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> |
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> Thanks in advance for any suggestions or pointers, |
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> |
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> Stroller. |
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> |
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> |
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> |
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|
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In all likelihood, its your hard disk slowing down the network |
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transfer, and not the cabling. Generally speaking, if the hardware |
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says gigabit, than you've got gigabit. |
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