Hi,

Network:
I make giga network using Cat 5e, connecting my Computer (W7.Intel i5-2500 3.3GHz.8GB) and my NAS (FreeNAS 8.2.AMD Liano A6-3500.8GB) that in same place. 1m cable.

My Router:

Router Name    OpenWrt
Router Model    TP-LINK TL-WR1043ND
Firmware Version     OpenWrt Backfire 10.03.1 / LuCI 0.10.0 Release (0.10.0)
Kernel Version    2.6.32.27
Local Time    Tue Apr 10 09:47:19 2012
Uptime    0h 29m 44s
Load Average    0.63, 0.26, 0.17

My problem:
When i copy very large file (>4GB) my char look like this (right side):

At left side is copying 1.5GB file.

It starting at 100MB/s for 15-20sec then drop to 0 for 3 sec and again.

I try using original last firmware. Now i try using OpenWrt but still same problem.
Of-curse no firewall is running on my computer and NAS will testing.

I use my old 100/10 router and i get 12MB/s fix with out timeout.

Maybe i can limit my lan to 50MB/s and so it will stop jumping like crazy? How i can make this limit?

Good Day.

(Last edited by TheWiz on 10 Apr 2012, 10:31)

Testetd here on the same TP-Link

Router Name    TP-TUE
Router Model    TP-LINK TL-WR1043ND
Firmware Version     OpenWrt Backfire 10.03.1-RC6 / LuCI 0.10 Branch (0.10+svn7852)
Kernel Version    2.6.32.27
Local Time    Tue Apr 10 13:13:07 2012
Uptime    16h 36m 11s
Load Average    0.03, 0.03, 0.00

Copied 16 GB from AFP Server OSX Server 15m Cable  --> OSX Lion 7m Cable

HDD speed maker/model? Both, yours and NAS.

Test with some RAMdisk utility like DataRAM or VSuite

Also download it twice may help, the second time should be from the cache already in memory.

Anyway, you are using the switch of your router, OpenWRT is not involved.

All HD (computer & NAS) are WD Green WD20EARS 2GB 64MB 3GB/s.

Using DataRAM the transfer file of 4GB is 30-40MB/s with out jumping.

How it could be that over LAN much faster?!?

Something is really strange!

Maybe Total commander is faking speed....
Using explorer to copy files give me 30-40MB/s and same graph of streaming and timeout.

I connect a new WD Green WD30EZRX 3TB SATA 6 GB/s and i copy to DataRAM. i got 110-130MB/s flat no jumping.
I try copy to NAS and i get same result like before.

(Last edited by TheWiz on 10 Apr 2012, 16:13)

Ok.

File: 3.5GB
Test 1: Computer - RamDisk <-> NAS - Ramdisk. Speed:  100MB/s stable.
Test 2: Computer - HD 6GB/s <-> NAS - Ramdisk. Speed:  100MB/s stable.
Test 3: Computer - HD 3GB/s <-> NAS - Ramdisk. Speed:  100MB/s stable.

So the problem is with HD. I don't understand why.....

Sata 3Gb/s is like 375MB/s i need only 30% of this theory, 100MB/s!

Maybe problem is with RAID-5 + ZFS. Software RAID is really this bad?

No way! LMFAO
WD20EARS Specs:

In a rotational HD this maximum only happens at first cylinder.

The speed you're dream about is SSD speed.

The NAS will serve the file from memory the second time you get it.

There is a tunning knob in CIFS: 256k buffer

Search the net: Speed test of your specific HD, HDtach, CIFS fine tunning for your OS.

YOU ARE GENIUS!!!!!

I use this tuning article and now i get stable 100MB/s !!!!!

YES!!!

You are using a beta FreeNAS: Please report your findings to FreeNAS guys. That's beta for...

10x. man.

I report it.