LAN help?

[HalloweenJack]

direct connection my pc>switch> kids pc with giga , starts at 45MB/s drops to 20.....



and slower coming off the sata drive as well.

[Blastuk]

Best way to test would be to test without hitting the disks at all, so you test just the connection..
then do the disk afterwards.

[Splash]

direct connection my pc>switch> kids pc with giga , starts at 45MB/s drops to 20.....



and slower coming off the sata drive as well.

Well... 20MB/s is definitely gigabit speeds. Put bluntly the disks are likely to be your bottleneck in that kind of situation.

[HalloweenJack]

after all new drivers etc - i honestly think your right *blush* that unless i go with raid im stuck at the headline limit for drives


edit:

ATA 133 is supposed to be 133 megabytes poer second- take off windows bottle necks and its stillsupposed to be at leatst 88 MB/s

so why is my sodding nic stuck at 100base?

[Steve]

It depends on the hardware, because if peripheral devices such as disk channels and network controllers are having to share bandwidth on the motherboard, then that's going to kill throughput too. This is most true when PCI (not PCI-E) attached network controllers and disk channels are in use, e.g. the mobo isn't particularly new or high end.

[HalloweenJack]

thrown HD Tach at the hard drives this morning - WD 200JB *cough ATA100* running at 88MB/s burst (50 MB/s sustained) so bang on the money for that drive (and yes its old lol)

seagate 320 sata 2 - 224 MB/s burst and 51MB/s sustained

im happy to say the drives pass muster , so thinking its the network adapter

motherboard is an MSI K9A2 Platinum with latest drivers btw

[Lourdes]

Have you tried any actual LAN performance testing software like iperf?

Your NAS will always have rubbish speeds, don't expect much from it.

[HalloweenJack]

done a bit of testing over the weekend - it seems that the transmit from my pc is the slow point - am getting 20+ MB/s recieving from the NAS and double when from other pc`s with gig nics