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blowspark · 10-27-2005, 03:08 PM

Hi,

The Specs:

P4 3ghz HT - FSB 800MHz
1GB ECC DDR-SDRAM @ 400MHz
3Ware AMCC 9500S - SATA Raid Card
4 x 250GB Seagate Barracuda 7200.8 SATA NCQ

OS: Windows 2k3 - SP2

ioFTPD version : 5-8-5
ioBanana version: 20

When I test the Raid Speed without any Traffic I get an average Read Speed = 74 MB /s.

See this Pic here :

A speed that satisfies, with crypt, i think.

But now the Problem:

The Speed collapses the more Users are connected and cause Traffic.

On the next Picture you will see what I mean :

At this time there are only 4 Users connected causing a Traffic of ~ 10 Mbit/s and as you can see the average Speed

decreases horrible. Only 40.8 MB/s average Read Speed, and the Graph fluctuate horrible.

And this resumes as more Users are connected.

Here is a Screen what it looks like when ~ 20 Users are connected causing a Traffic of ~ 25 Mbit/s :

Average Speed sinks down to 6.5 MB /s and the System begins to lag,

but the maximum CPU Usage is between 20 and 40 % , that should Â´nt be the Problem.

Maybe someone has a suggestion for this problem.

10-27-2005, 03:08 PM
blowspark Junior Member Join Date: Feb 2005 Posts: 5	Speed collapses when Traffic (number of Users) is rising Hi, The Specs: P4 3ghz HT - FSB 800MHz 1GB ECC DDR-SDRAM @ 400MHz 3Ware AMCC 9500S - SATA Raid Card 4 x 250GB Seagate Barracuda 7200.8 SATA NCQ OS: Windows 2k3 - SP2 ioFTPD version : 5-8-5 ioBanana version: 20 When I test the Raid Speed without any Traffic I get an average Read Speed = 74 MB /s. See this Pic here : A speed that satisfies, with crypt, i think. But now the Problem: The Speed collapses the more Users are connected and cause Traffic. On the next Picture you will see what I mean : At this time there are only 4 Users connected causing a Traffic of ~ 10 Mbit/s and as you can see the average Speed decreases horrible. Only 40.8 MB/s average Read Speed, and the Graph fluctuate horrible. And this resumes as more Users are connected. Here is a Screen what it looks like when ~ 20 Users are connected causing a Traffic of ~ 25 Mbit/s : Average Speed sinks down to 6.5 MB /s and the System begins to lag, but the maximum CPU Usage is between 20 and 40 % , that should Â´nt be the Problem. Maybe someone has a suggestion for this problem.