Overclock.net › Forums › Components › Hard Drives & Storage › SSD › Severely degraded SSD performance
New Posts  All Forums:Forum Nav:

Severely degraded SSD performance

post #1 of 6
Thread Starter 
Fresh install of Windows 7 on a RAID5 (I want redundancy and don't mind giving up a little performance) of 4 x 240GB OCZ Vertex II SSDs. This is all on the onboard Intel RAID controller on a P67 board (Asus Maximus IV)

VertexII220411.jpg

As you can see, despite the RAID5 the performance is very good. I'd be very very happy with that.

After TrueCrypt-ing it though (I always use full disk encryption) it's dropped to this:


VertexII230411.jpg


I've also encrypted another SSD that is in this box on it's own and not in a RAID set (Samsung MMDOE56G5MXP-0VB 256GB) and that has not seen anywhere near this performance loss, although it has taken a bit of a hit.

Obviously the disks have taken a lot of writes (the whole "surface") during the encryption process, but I don't understand why the OCZs have slowed down so much more than the Samsung.

Incidentally, my encryption throughput is massive (i7 2600k at 4.7) and for all practical purposes the encryption is basically transparent and free of any noticable performance hit as far as CPU time goes, so this must be something more specific to SSD performance, but I'm confused by the fact that the Samsung hasn't really taken much of a hit in comparison to the OCZs.

I didn't overprovision either the SSD RAID or the single SSD on it's own. I understand that they are overprovisioned internally anyway. I'd prefer not to overprovision, but if I was to be able to be convinced that this was due to leaving too little space for garbage collection I would do so, but I've not seen a really convincing argument yet for it, although I am by no means an expert and have quite limited experience with SSDs and have never run them in RAID or in a high-performance box like this before.

I'm going to leave the box overnight at the logon screen to idle in the hope that some more garbage collection by the SSDs will sort it out, but does anyone have any further input or suggestions?
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
post #2 of 6
Intel driver?
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
  hide details  
Reply
post #3 of 6
Thread Starter 
Hi,

Thanks for the reply, but I don't think it's a driver issue, at least not an outdated drivers issue, as I'm on 10.1.0.1008 which is the latest official release.
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
post #4 of 6
Are you sure that the mobo can handle this raid array?
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
  hide details  
Reply
post #5 of 6
Thread Starter 
Quote:
Originally Posted by UrbanSmooth;13246611 
Are you sure that the mobo can handle this raid array?

Well whether or not it can extract the most performance from it, it did manage more than acceptable performance before the encryption was put in place.

I do also have a fakeraid card in this box (Highpoint RocketRaid 2680SGL) which has got the non-boot drives on it. I guess if it came to it I could try using that instead of the Intel RAID for the boot SSDs but I don't think that would be likely to improve it, I've seen benchmarks where the intel beat this card so it's more there for extra SATA ports than for performance.
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
post #6 of 6
TRIM doesn't support RAID: http://www.overclock.net/raid-controllers-software/677311-ssd-drives-raid-0-trim-support.html <<<<

You need to run a garbage collection program.
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: SSD
Overclock.net › Forums › Components › Hard Drives & Storage › SSD › Severely degraded SSD performance