'Ununsual' Samsung SSD Benchmarks

antz123 · 18 Feb 2009 at 13:45

Hi,

I have been able to get hold of two Samsung SSD 32GB (SLC) drives, but I'm getting some odd bechmark results. They are both in Nvidia RAID 0.

Any ideas why about 3/4 through the benchmark, the speeds increase like that? :confused:

randal · 18 Feb 2009 at 13:46

I think Tom|Nbk was having the same issues on a 64gb version of this too, lemme see if I can find his thread.

Here you go:

http://forums.overclockers.co.uk/showthread.php?t=17976527&highlight=username_Tom|Nbk

NickK · 18 Feb 2009 at 13:55

Looks like a load of redirection (caused by wear write remapping).

antz123 · 18 Feb 2009 at 14:01

Well I already have all the latest chipset drivers etc, still seems very strange to me. I have installed HD Tune Pro 3.50 and ATTO disk benchmark, results as follows:

Charlie49 · 18 Feb 2009 at 14:08

Got mine too.

1 drive 140-160mb average on HDtach & HDtune.
2 drives at first was 180mb average with 128kb stripe and no tweakin.

2 drives with 16kb stripe stopped the wild fluctuations and with tweaks average read of 230-240mb average. More than two drives saturates onboards controllers, need a dedicated RAID card.

Just one is quick, a pair is stupidly fast, such a great product.

antz123 · 18 Feb 2009 at 14:18

Charlie49 said:
Got mine too.

1 drive 140-160mb average on HDtach & HDtune.
2 drives at first was 180mb average with 128kb stripe and no tweakin.

2 drives with 16kb stripe stopped the wild fluctuations and with tweaks average read of 230-240mb average. More than two drives saturates onboards controllers, need a dedicated RAID card.

Just one is quick, a pair is stupidly fast, such a great product.

If I wanted to change the RAID stripe size, does it require re formatting the drives?

Darkman · 18 Feb 2009 at 22:18

Charlie49 said:
Got mine too.

1 drive 140-160mb average on HDtach & HDtune.
2 drives at first was 180mb average with 128kb stripe and no tweakin.

2 drives with 16kb stripe stopped the wild fluctuations and with tweaks average read of 230-240mb average. More than two drives saturates onboards controllers, need a dedicated RAID card.

Just one is quick, a pair is stupidly fast, such a great product.

Tweaks, what tweaks? (My pair were set up with 16K already)

P

mranderson · 24 Feb 2009 at 16:08

HDtune reports rubbish. Your ATTO benchmark is the most precise one.