What are your SSD Read/Write speeds?

[thornomad]

Hey everyone - recently got around to installing ML and with it a new SSD (Intel 510 120GB) that I had in another laptop. Since it's a brand new install I did want to make sure everything was flying as fast as it could but when I checked my SSD read/write speeds I was left a little sad ... but not sure if I should be ... it's just that it's way off the advertised speed (for write, especially).

So, I wondered. What type of speeds do people have with their SSDs (non-RAID configured)? Here is what I am working with:

Hackintosh 2.0 - Geekbench Browser

	System Info		
		Xbench Version		1.3
		System Version		10.8 (12A269)
		Physical RAM		12288 MB
		Model		MacPro3,1
		Drive Type		INTEL SSDSC2MH120A2
	Disk Test	204.45	
		Sequential	134.80	
			Uncached Write	127.44	78.25 MB/sec [4K blocks]
			Uncached Write	76.54	43.30 MB/sec [256K blocks]
			Uncached Read	141.08	41.29 MB/sec [4K blocks]
			Uncached Read	598.23	300.67 MB/sec [256K blocks]
		Random	422.97	
			Uncached Write	194.10	20.55 MB/sec [4K blocks]
			Uncached Write	347.59	111.28 MB/sec [256K blocks]
			Uncached Read	2352.03	16.67 MB/sec [4K blocks]
			Uncached Read	997.06	185.01 MB/sec [256K blocks]

 

[freituk]

hi thornomad

the problem is your motherboard.
The satas 6Gb/s ports of your board are not supported by osx. They act like normal sata 3 Gb/s port.
You need, like me, a compatible pci sata 6Gb/s controller . There is a post about that on old forum.
You can check my signature for the pci chip name.


btw this is my ssd score - samsung 830 128gb

 

[ivanftw]

^ this read/write speeds are too slow. Trim is working, or not? you should have 500/~350 mb/s

 

[thornomad]

the problem is your motherboard.
The satas 6Gb/s ports of your board are not supported by osx. They act like normal sata 3 Gb/s port.
You need, like me, a compatible pci sata 6Gb/s controller . There is a post about that on old forum.
You can check my signature for the pci chip name.

I can see there is certainly a problem! Wow. All right, I will look into getting this controller you mention. Thanks.

Do you think I would see higher than 60 MB/s write speeds on the Intel SATA II controllers on the board that are supported? It just seems *really* slow!

No Trim support. Can i enable that?

Thanks!

 

[mvn4wrd]

Toggle Superiority!

 

[cochon]

Samsung 830 128GB + ASM 1061

 

[reichleyusaf]

OCZ Vertex 4 on my hack (Z77X-UD5H i7-3770K)

If you have a Vertex 4 and didn't update firmware (using Windows 7) to 1.4 prior to installing Mountain Lion, you may see dramatically lower read/write speeds.

 

[freituk]

I can see there is certainly a problem! Wow. All right, I will look into getting this controller you mention. Thanks.

Do you think I would see higher than 60 MB/s write speeds on the Intel SATA II controllers on the board that are supported? It just seems *really* slow!

No Trim support. Can i enable that?

Thanks!

This board MB GB GA-Z77-DS3H + SSD Samsung SSD-830 128 G
Score in Black magic test with native sata 6Gb/s
W-297 R-456

Your Intel 510 120GBa
according to testes, the random write speed is around 200 when connected to sata 6Gb/s. Thats what you can expect.

but...

the PCI Sata card don't perform the same of an intel native controller like z77 chipset (integrated on intel chipset). But at least you have a good boost on your x58a. And the price of pci card is much more lower compared to a new Mainboard.

Multibeast have the TRIM option, try to activate.
My samsung have TRIM support. Not sure about yours.

think i bought this PCI card
2 eSATA 2 SATA 3.0 to PCI-E PCI Express Card Adapter Converter 6.0Gbps ASM1061 | eBay

need confirmation

 

[thornomad]

Multibeast have the TRIM option, try to activate.
My samsung have TRIM support. Not sure about yours.

I did *not* enable Trim support - whoops. I will go back and try that now and see if that makes an improvement. [/s]

My new PCI card should arrive tomorrow - I ordered it based on the link in this blog post.

Thanks for everyone's feedback; very helpful. I will follow-up when I make some progress.

------

Edit: I went and added Trim support and my write speeds jumped to 100 MB/s on the Blackmagic Disk Speed Test ... that's almost double what they were without Trim support. Hopefully this new controller card will end all my worries.

 

[thornomad]

Just wanted to update you as to my progress as to discovering why my drive wasn’t reading and writing at or near its maximum potential.

First, I took the drive to a friend’s machine with Windows 7 installed (along with the new SATA III card I had purchased) and the drive tested much faster on his machine than my machine (right where it should be). So, I ruled out a bad drive.

Back at my system, I realized one thing that may be holding me back: my PCI-E x1 port is only Gen 1.0 … not Gen 2.0 (limiting the I/O speeds to about 200 MB/s I believe). I moved the card down to an open x8 port (which supports Gen 2.0) and then I installed Win7 (borrowed the copy from my friend) I was able to get fast read/write speeds on my machine finally!

While I had Win7 installed i updated the BIOS to FH (which you can only do with Win7 I found).

Then - back to my Hack-a-Mac and I re-installed 10.8.1 with MB 5.0.2 and ran into Trim trouble. I wasn’t the only one. Downloaded the Trim Enabler (http://www.groths.org/?page_id=322) and was able to get Trim working.

However, I am still stuck at 110 MB/s write and 275 MB/s read.

I can’t figure out what else is going wrong with my setup, but my Hack-a-mac is not doing its thing. Very disappointing.

Below is my System Profiler setup and attached is my MB options. Anyone have any ideas where I could be going wrong?

Thanks,
Damon

Link to card: http://www.amazon.com/gp/product/B005B0A6ZS/

ASMedia ASM1061:

  Vendor:	ASMedia
  Product:	ASM1061
  Link Speed:	6 Gigabit
  Negotiated Link Speed:	6 Gigabit
  Description:	AHCI Version 1.20 Supported

INTEL SSDSC2MH120A2:

  Capacity:	120.03 GB (120,034,123,776 bytes)
  Model:	INTEL SSDSC2MH120A2                     
  Revision:	PPG4    
  Serial Number:	LNEL123100WA120CGN  
  Native Command Queuing:	Yes
  Queue Depth:	32
  Removable Media:	No
  Detachable Drive:	No
  BSD Name:	disk0
  Medium Type:	Solid State
  TRIM Support:	Yes
  Partition Map Type:	GPT (GUID Partition Table)
  S.M.A.R.T. status:	Verified
  Volumes:
disk0s1:
  Capacity:	209.7 MB (209,715,200 bytes)
  BSD Name:	disk0s1
  Content:	EFI
Peak's Island:
  Capacity:	119.69 GB (119,690,149,888 bytes)
  Available:	112.61 GB (112,609,329,152 bytes)
  Writable:	Yes
  File System:	Journaled HFS+
  BSD Name:	disk0s2
  Mount Point:	/
  Content:	Apple_HFS
  Volume UUID:	3E7E9E6F-3906-3397-86D1-601455D4AD95