Sammy 470 odd fix for slow performance!

My old 470 256gb was giving me many headaches. Apart from getting slow it would often crash the system if I left the computer idle for any length of time, crash if I ran AV. Even boot times were getting into HDD territory!

I then ran CCleaner and wiped all free space 1 rewrite only. The performance went straight back to as new.

I did this after reading about it extensively. Many recommended against it or that it makes no difference. I just wanted to say this made a HUGE difference. I was going to chuck it and upgrade it. Not anymore!

Why would this help so much. I thought TRIM is supposed to do this job! Supposedly the 470 has got trim and all right? I also have always kept disk usage to around 25% only. So it seems TRIM doesn't work on my drive?

 

What you did would kill the performance of any SSD! reason being, SSD NAND cells usually perform best when they are in a WRITEABLE state......what you did by filling them all with 1s is now you have made them al not WRITEABLE so the SSD controller must first change the state of the cell from NOT WRITEABLE TO WRITEABLE and thus a performance hit......I don't know how in the world do you say it's faster......all logic says it should be slower unless you are experiencing the placebo effect.....only benchmarks can tell not how you feel.

 

Hmm talking to me like I am some sort of newbie? I know what I experienced and it wasn't a placebo effect. If it was I wouldn't be posting this. I did run benchmarks afterwards too and performance is spot on for this drive with about 30% of capacity used.

Anyways yes filling free space does fill all the cells with ones but then it erases all the data it wrote in one fell swoop meaning they are back in a writeable state. Sure it means the drive loses one write erase cycle but that is pretty inconsequential considering the drive is already over 3 years old and I haven't done this before nor would do it often unless I needed to again.

Perhaps next time don't caps lock SHOUT and don't treat others like idiots.

Cheers.

 

Do you have any Over Provisioning set up?
Did you clone a HDD to SSD? If so or otherwise, have you checked that TRIM is turned on?

You may already know this stuff, I'm just adding the commands here in case you or someone else doesn't.

Query TRIM Behavior

fsutil behavior query disabledeletenotify

Return values:
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

 

I think Matrix leader misunderstood what you said. You wiped empty drive space using CCleaner using 1 pass which is perfectly fine for SSD. CC did what trim supposed to do, by zeroing empty space. MatrixLeader thinks it wrote 1's into empty space (1 rewrite only), but CC just writes zeros during wipe, I don't even believe you can set what it writes. It seems your trim is not working properly but I have no idea why.

 

So you basically did a secure erase?

 

Had U been shouting at you, the entire post would be in CAPS bro......I capitalized some words to emphasize on them

Didn't mean to say you're a n00b, just wanted to mention that writeable state about the NAND and to make sure it's not placebo, if it isn't, then great! Hope we're good now I am your friend

 

Run CrystalDiskInfo. It should tell you if TRIM is supported or not. I think there was a firmware update to add TRIM actually on the 470 drive. If your drive had earlier firmware it may not even support TRIM.

 

Crystal disk mark says it has trim but I will run the above commands to see if it is running. Worst comes to worst to do the same free space wipe once a year.

Thanks for the feedback and advice guys. Matrox yes we are fine. Your original message came across a bit aggressive so that is why I came across as defensive. No worries

 

Glad to see someone other than myself is still using their Samsung 470 SSD! Mine is still chugging along too.

Sent from my XT1049 using Tapatalk

 

Me too, going to do a secure erase and recover the image over the weekend , I bought it 4 yrs ago and still works fine.