Samsung 840 PRO and Toshiba Satellite P750-10C too slow speed

Hi,
Today I bought SSD for Satellite P750-10C with 530/390MB, but in my notebook I got only 310/300MB, why so slow?
It is connected to SATA III, so I should get about 500MB?

Chipset is intel hm65, so it is fine.

 

Did you clone or clean install the OS?

Do you have the Intel Rapid Storage Technology driver installed?

 

I installed clean version of win7.

IRST is installed like driver from Toshiba, but in menu start I don't see this application, maybe should I install version from intel.com?

I see that you have 840 pro too, do you have 500MB in tests?

 

Yes, I get 500MB tests.

Did you use a Windows reinstall disk from manufacturer or a generic Windows from internet?

Is your boot method set to AHCI in the BIOS? If it isn't, then changing will cause the computer to not boot and will require a reinstall.

Maybe I can't help but everyone else will need this info to help you diagnose.

 

I have copy from MSDNA, so it's good copy like orginal.

AHCI is choosen, I tried to do update to newest version of BIOS, it didn't help.

 

Sounds like the IRST mentioned earlier might be worth trying.

There may or not be an accessible application in the start menu.

In Start, Search, type services.msc and look through the list for Intel(R) Rapid Storage Technology and see if it is started.

 

Also, check in the device manager and see if there are any indications ! of missing drivers.

 

all driver was installed, I always check device menager


IRST I will check for next 5-10 minutes, because now Windows is installing 185 updates (139 already installed)

 

Installed the newest version of IRST from intel.com and now I see different name od disk in device menager.

Transfer after instalation is better

It helped, could you check if you have similary results?

 

Your random read/writes seem low, almost by half. Do have over-provisioning set?

The only benchmark I have is the Samsung - My Seq. R/W are maxed (540/520); For Random R/W both are just a line below the maximum.

Turn off write cache buffer flushing = enabled on both drives

No prefetch or superfetch = disabled.

TRIM = enabled. At command prompt type:

fsutil behavior query disabledeletenotify

Return values:
DisableDeleteNotify = 0 (TRIM is Enabled)
DisableDeleteNotify = 1 (TRIM is Disabled)

 

Seq R/W I have a little worste, because I have 128GB.

But random should be better, I don't know why it is.


TRIM is enabled.

No prefetch or superfetch enabled, this I don't know.

I set maxium performace in magician

 

Magician performance optimizer should be able to set most of this for you.

I just saw it is 128 MB size, (I thought maybe 512 MB) for some reason you have two partitions C: and a D:

On a drive of that size there is not much room; over-provisioning space is especially needed on the smaller drives.

128 as a OS drive and a secondary drive (SSD or HDD) for storage. It could be squeezed, how full is it?

Hopefully some of the more knowledgeable guys around here could chime in with some thoughts as to why the Randoms are so low; maybe it is just the way it is with that size and fill.

Here's an OP calc for 30% unallocated:

128 / cube(1.024)
119.20928955078125 * 0.3
35.762786865234375 - 119.20928955078125
Int(negate(-83.446502685546875))

= 83 GB (For OS and DATA)

 

I have only 128GB for OS and DATA, my notebook doesn't have space for 2nd one.

I have 119GB separate on 2 partition C and D

but I don't know what you calculated:
35.762786865234375 - 119.20928955078125
Int(negate(-83.446502685546875))

could you tell me why you minus it?

 

One more thing to know, the performance optimizer enables hibernation - which takes up space.

So afterwards you may want to disable it, using command prompt: POWERCFG -H OFF

Be careful when adding drivers as the video driver or other might re-enable it. Best to do this after all the drivers are installed.

 

I will check it later, but I think that samsung max optimalizer turned on hibernation.

 

Maybe this can help,

***USE Scientific View***

Convert drive to nominal capacity:
[ Inv ] 128 [ / ] 1.024 [ x3 ] [ = ] 119.20928955078125

Reserve 30% unallocated space:
119.20928955078125 [ * ] .30 [ = ] 35.762786865234375

Subtract reserved space from nominal capacity:
35.762786865234375 [ - ] 119.20928955078125 [ = ] -83.446502685546875

Strip negative, strip decimal:
-83.446502685546875 [ -+ ] [ Int ]

Create an exact partition size in GB's using MB's:
83 [ * ] 1024 [ = ] 84992 MB

84992 MB = 83 GB

Realized usable file space, including Windows OS share, after reserving ~ >30% unallocated space;
Creating a 83 GB OS partition leaves ~ >30% unallocated space remaining.

 

I still don't understand this 35GB of unallocated space.

I got real space 119GB, first partition has 50GB, rest for 2nd.

so, when I have more data than 83GB, my SSD will slow down?

 

There are so many threads that talk about OP.


Our own TillerOfTheEarth has many posts about it, I'm kinda burned out on explaining it.
Maybe he'll be so kind as to post a link where he explained it in detailed terms.

This is the only one recent I can think of that stayed decent/respectful, but not very detailed:
http://forum.notebookreview.com/sol...ought-alienware-17-what-ssd-should-i-get.html

Gotta go to work, let us know if you get it improved.

 

I hope the following link to the links are the info required:


See:
http://forum.notebookreview.com/sol...-provisioning-my-840-evo-ssd.html#post9512253

 

Here's two links outside NBR:

Support and Q&A for Solid-State Drives - Engineering Windows 7 - Site Home - MSDN Blogs

Link from within the above, read the whole thing through, at the end click the next chapter:
AnandTech | The SSD Anthology: Understanding SSDs and New Drives from OCZ

 

Thanks Tiller!!!

FYI: Magician can be removed from the startup folder in the administrator account only. It starts hidden and throws a secure desktop prompt when it is in there.
It doesn't start automatically in a Windows 7 standard account.

 

You're welcome.

The best way to remove Magician is to uninstall it completely.

The best way to use Magician is to install if an update is available for your SSD (and uninstall immediately afterwards).

If 'Optimize System' is used in Magician; best to re-install the O/S.

 

Yikes, never used it except for firmware update and performance test - lucky me.


Manually optimized, sorry for the format I'm lazy to fix it right now so it's just a cut and paste from another thread, and may need some minor correction:

Over-Provision Space.

Reserve a specified percentage of unallocated/unpartitioned empty space at the end of a drive
for use by the SSD controller for Garbage Collection, Wear-leveling etc.
General guideline is 10%, 20% or 30% (30% Recommended); Lower amount for infrequent and larger writes, Higher amount for frequent and smaller writes.
Predetermine amount and apply during Windows install, or after by shrinking an existing partition having unused space to spare.

TRIM Behavior Command.

Status if SSD is present: Enabled, default.

Open an elevated Command Prompt, Enter the syntax as shown directly below the activity to perform:


Query TRIM Behavior:

fsutil behavior query disabledeletenotify

Query return values displayed:
DisableDeleteNotify = 0 (TRIM is Enabled)
DisableDeleteNotify = 1 (TRIM is Disabled)


Change TRIM Behavior:

Enable TRIM, (if Disabled)

fsutil behavior set disabledeletenotify 0


Disable TRIM, (if Enabled)

fsutil behavior set disabledeletenotify 1

Disk Defragmenter.

Status if SSD is present: Excluded from automatic scheduling, default.

Avoid defragmenting any SSD. To disable so that it can't be started by any method (auto or manual) for any drives:
in Startmenu, Search or Run, Type: services.msc
Locate Disk Defragmenter entry and set to Disabled.

Prefetch and Superfetch.

Prefetch status if SSD is present: Enabled, default.
Superfetch status if SSD is present: Manual, default.

Both can be permanently set to Disabled. Prefetch requires a Registry adjustment to accomplish this.
However, if Users and/or ProgramData folders are relocated to an HDD, performance might require Prefetch setting be Enabled.


Disable SuperFetch (if Manual or Enabled)
in Startmenu, Search or Run, Type: services.msc
Locate Superfetch entry and set to Disabled.

Disable both Prefetch and Superfetch (Registry adjustment)
in Startmenu, Search or Run, Type: regedit.exe
Path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters
Names: Enable Prefetcher and Enable Superfetch items (separate, equivalent value's)
Type: DWORD
Value: 0 (Disable activity); 3 (Enable all activity; original value)

Write-caching Policy.

Status if SSD is present: Enable write caching on the device - Enabled/Checked, default.

This setting is in Device Manager under Disk drives.

For additional SSD performance increase: Turn Off Write-Cache Buffer Flushing on the device - Enabled/Checked.
For the Samsung 830, 840 Pro - it's a positive adjustment.
However, if the SSD has a Sandforce controller, it may not be recommended to use this setting as performance may decrease.
Some Mfr. Models with Sandforce controllers are Intel, OCZ and LSI.

Hibernation.

Status if SSD is present: Enabled, default.
Optional preference - Enable or Disable (creates or removes) file: hiberfil.sys
Its size allocation is normally equal to 2/3 amount of System RAM.
Note: portable machine manufacturers may incorporate hibernate into their custom power profiles which will re-create/re-enable a
missing hiberfil.sys file when the battery reaches a specific discharge level to protect the system and data.

Also, it might get created when the video driver or other driver is installed.

Command Help: POWERCFG /?
Available Sleep States: POWERCFG -A

Enable Hibernation (if Disabled),
Open Command Prompt, Enter the line as shown:

POWERCFG -H ON

Disable Hibernation (if Enabled),
Open Command Prompt, Enter the line as shown:

POWERCFG -H OFF

System Protection.

Optional preference. Default is Enabled for the Operating System partition only.
Provides ability to restore the previous System state if something breaks after a system alteration,
and/or individually restore previous versions of files.

If System Images and/or File Backups are maintained separately then this feature can be disabled to reduce
drive space consumption and unnecessary write wear.

To Disable: in Control Panel, System, System Protection.
Configure each partition separately with the available options.

Windows Search.

Optional preference. Default is Enabled for the System and UserProfile partition location(s).

To Disable: in Startmenu, Search or Run, Type: services.msc
Locate Windows Search entry and Stop then set to Disabled.
{DRIVE:}\ProgramData\Microsoft\Search - the subfolders can then be safely deleted.

If functionality is necessary: Indexing Options allow for exclusions of locations and file types where not needed
to reduce drive space consumption and unnecessary write wear.

Pagefile.

Optional preference. Default setting is System Managed and the Pagefile.sys file is located on the Operating System partition.
If unsure about its role - it is recommended to keep it at the default.

Its size allocation is normally equal to the amount of System RAM but could vary depending on how much RAM is installed.
Generally, disabling or reducing it too much, could have consequences if RAM is insufficient in size to handle all requested processes.