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Windows 7: usb 3.0 EXTREMELY slow transfer rates

05 Jan 2011   #11
thehappyman

Win 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by whs View Post
Quote   Quote: Originally Posted by thehappyman View Post
Hi Quanzaboy
For whatever its worth I tried using HDTUNE to test my USB 3.0 Drives speed but the program aborts and gives me a "Read Error". Probably because its a 3 TB Drive. So I used the ATTO Benchmark instead which didnt have the same problem.

Just for a comparison here are benchies of 4 of my drives -

1) A WD Caviar Black 2 TB Sata 3GB/sec @ 7200 rpm (with 64 MB cache)
2) A WD MyBook 3 TB USB 3.0 PCI controller driven External Drive
3) A WD Velociraptor 600 GB Sata 3GB/sec @ 10,000 rpm
4) An OCZ Vertex 2 240 GB SSD (Sata 3 GB/sec)

Curiously enough the ATTO benchmark shows all 3 of the mechanical disks to have roughly the same performance. The fastest one by far is the OCZ SSD. I think your Caviar Green and Blue may both be 5400 rpm drives ??? but your scores still seem too low - try the free ATTO benchmarker - good luck
Attachment 129361
The one that is really disappointing is the Raptor. I was about to buy one to put into my USB3 enclosure. But after seeing your data, I think I can save my money and go for a less expensive solution.
Hi WHS - The only thing I can think of to explain the Velociraptors less than stellar Performance is that it only has a 16 MB Cache


My System SpecsSystem Spec
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05 Jan 2011   #12
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

That could explain it of course. Still, it is not earthshaking. Thanks for the additional info.
My System SpecsSystem Spec
05 Jan 2011   #13
MilesAhead

Windows 7 32 bit
 
 

Hmmmm something must be weird because I keep seeing these low copy rates for USB 3.0 drives. I have SIIG USB 3.0 cards in my PCs with SIIG and Sharkoon USB 3.0 docking stations. I use WD Caviar Black 3 Gb/sec and 6 Gb/sec drives in the docks. Sequential read of multi GB files from the 6 Gb/sec drives are typically 120 MB/sec or faster. From the 3 Gb/sec drives it's over 100. Granted Windows Explorer give an optimistic number but Crystal Disk Mark shows sequential reads of over 130 MB/sec for the 6 Gb drives and over 100 MB/sec for the 3s.

On my dual core PC the numbers are a bit lower because the bus and the main drive are slower. Even so pulling from the 6 Gb/sec drives is still over 110 MB/sec with the 3s showing in the 70 to 100 MB/sec sequential read range.

On both machines Caviar Blacks plugged into docking stations are faster than the system drives that came with the machine. Being HP they are 3 Gb sec Sata. Not sure exactly what's in the quad because it has some weird fake raid setup that blocks any smart info about the drive and controller. All I know is the HD that came with the quad is 750 GB single drive.

I get transfer rates comparable with the speed of the drives. Copying from one USB 3.0 dock to another both hooked to the same card has no bogging effect. Doesn't run up the cpu much either. Perhaps other cards are different. I bought one SIIG USB 3.0 and liked it so I got another. I haven't tried any others.

One thing interesting, while I was waiting for my USB 3.0 docking stations to arrive, just for grins I hooked up a USB 2.0 Seagate external to the SIIG card. I got about an 18% increase in throughput. Large sequential writes went from 24 MB/sec or less to about 30 MB/sec or a tad more.
My System SpecsSystem Spec
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05 Jan 2011   #14
Mike Connor

Several, including Windows 7 x64 Ultimate
 
 

Something is weird! Tested a lot of USB 3.0 stuff recently on a lot of boards, in a whole load of cases it reverts to legacy ( 2.0) mode, or only gives marginally better performance, ( 10...30 % )

Why? Don't know, but it is particularly bad with NEC chips.

Regards....Mike Connor
My System SpecsSystem Spec
05 Jan 2011   #15
MilesAhead

Windows 7 32 bit
 
 

Hmmmmm, just to make sure we're not apples & oranges, this is the card I have in my PCs:

Newegg.com - SIIG JU-P20412-S2 PCI Express to 2-Port USB 3.0 SuperSpeed Card

Not the "1 external 1 internal" port type. I've had no side effects I can detect other than the drives in the docks being faster than the system drives. Best thing I added since a Gb wired network card in the dual core.

If people are trying them with externals rather than docks I'm wondering if there's a bottleneck inside the external USB 3.0 drives themselves?
My System SpecsSystem Spec
07 Jan 2011   #16
kixs

Win7x64
 
 

@Mike Connor:
what model of Sharkoon docking station do you use?

I have Sharkoon SATA QuickPort Duo USB3.0 -v.2- and with Windows XP it worked perfectly. Copying from one port to the other was quick - around 71MB/s with WD Green 2TB EARS disks. Copying to internal WD 640GB Blue was around 100MB/s. Which is quite OK.

Then I installed W7x64. Copying to internal HDD from the dock is the same. But copying between ports is quite slower. I get around 40MB/s while copying the same files!

I have a new Asus motherboard with NEC USB3.0 on-board. I installed the latest drivers and upgraded the firmware. SONY/NEC firmwares.

Does anyone have any idea what's wrong with W7???

I'm thinking of installing WinXP again

Regards.
My System SpecsSystem Spec
07 Jan 2011   #17
Mike Connor

Several, including Windows 7 x64 Ultimate
 
 

My motherboard supports USB 3.0 directly, so I can use any 3.0 USB device. Some work fine, some don't. Just how it is!

For external storage I now mostly use eSATA.

Regards....Mike Connor
My System SpecsSystem Spec
07 Jan 2011   #18
kixs

Win7x64
 
 

My bad... My reply was actually for MilesAhead
My System SpecsSystem Spec
07 Jan 2011   #19
MilesAhead

Windows 7 32 bit
 
 

Quote   Quote: Originally Posted by kixs View Post
My bad... My reply was actually for MilesAhead
All my docks are the single drive type. For Sharkoon it's this one:

Newegg.com - Sharkoon SATA QuickPort USB3.0 2.5" & 3.5" Black USB 3.0 Docking Stations

The SIIG's are this model:
Newegg.com - SIIG SC-SA0D12-S1 2.5" & 3.5" Black USB 3.0 Drive Docking with Fan

(The SIIG looks like a dual dock. But it isn't. They must have decided to save money by using the same base for both versions. Plus it has a built-in fan. Even though it's a bit bulkier and you hear some fan, the drives run noticeably cooler. Doesn't burn your hand to pull the drive out.)

The USB 3.0 stuff runs fine on Vista64 SP1.

Do you have 2 separate USB 3 cables in the Sharkoon? I imagine it must but I don't know.
My System SpecsSystem Spec
07 Jan 2011   #20
MilesAhead

Windows 7 32 bit
 
 

Quote   Quote: Originally Posted by Mike Connor View Post
My motherboard supports USB 3.0 directly, so I can use any 3.0 USB device. Some work fine, some don't. Just how it is!

For external storage I now mostly use eSATA.

Regards....Mike Connor
I've heard in many cases the add-in card is better than on board native USB 3.0 since the add-in card hardware does the work. But it probably varies with the system. That could explain why I see a lot of surprise how slow USB 3.0 is.
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 usb 3.0 EXTREMELY slow transfer rates




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