SSD speed is very slow
Posted by a7dfj8aerj@reddit | buildapc | View on Reddit | 25 comments
Hi,
When I added the ssd to my laptop years ago speeds were gread but today i noticed very low speeds that is lower than hdd but the other ssd is doing perfectly fine what can i do to make normal
msi gp76 12ugs
crucial p3 4tb
Key-Air-8474@reddit
I'm also encountering this problem over the weekend. DaVinci Resolve suddenly can't play any video. The video files are on a Crucial CT4000BX500 drive.
That drive tested over 450MB/sec read/write last fall. Now it's testing around 35MB/sec read/write. The drive is mostly empty, as it is new. I have two of these drives and the totally empty one is testing the worst of the two.
Crucial Storage Executive tested the drives and they are said to be "healthy". But trying to pull any file off either one is a glacially slow process. Playback of video is around 3-5 FPS. Rendering is the same. I normally render about 400FPS out of Resolve.
The drives worked fine until this weekend. Booted up Saturday morning and noticed an error dialog after Windows booted. Something about a program failed to start. Since then, can't play videos. It's more like a slide show than video.
Each time I run SSD Bench, the drive gets about 30% slower than the prior run.
a7dfj8aerj@reddit (OP)
its starting to wear out as far as i know
Key-Air-8474@reddit
Here's the crazy part.. Crucial tech support had me generate a SMART report from these drives.. they both show 100% life left!
I just dropped 2 grand on two new SanDisk drives to replace these PoS. What bad timing with these prices.. that's 8X what I paid last fall for these drives.
a7dfj8aerj@reddit (OP)
Everything finds the worst time to break last year i lost a 2tb ssd and this year 16tb hdd died
Key-Air-8474@reddit
I've got dozens of SSD drives across five computers and these are the only two that have failed since 2014 when I started using them exclusively. The spinning drives would fail every 18 months on average, and they got too hot and used too much electricity. But these Crucial BX500 series are garbage. Bad RAM chips. No wonder they were $158 each for 4TB last year.
a7dfj8aerj@reddit (OP)
only ssd that died on my that i remember is kingston nv2 which is recent except that even old sata ssds were more reliable
Key-Air-8474@reddit
In 2009, I bought an SSD drive to use with an Atomos recorder. It was made by OCZ and it failed within 5 hours of ownership. The replacement failed within 2 hours. I got that refunded and got an Intel brand drive which has been working without issues since.
I got the two SanDisk 4TB drives installed this afternoon. Tests at 558MB/sec. DaVinci Resolve plays smoothly now. Even thumbnail creation on the timeline is nearly instant. So it WAS the 7 month old drives causing all my troubles this week.
awnylo@reddit
Did you look at any benchmarks? Your results are pretty much in line with what reviewers got: https://www.hardwareluxx.de/index.php/artikel/hardware/storage/59418-crucial-p3-im-test-qlc-ssd-ueberzeugt-nur-bedingt.html?start=4
a7dfj8aerj@reddit (OP)
first picture is when it was brand new check the other pictures it is pretty slow right now
awnylo@reddit
Oh didn't see that thanks to imgurs amazing ads at first.
Yeah that seems to be broken beyond regular usage.
If you're still within the warranty period just rma it. Otherwise I'd say it's time to back up your data and replace it.
OtherAlan@reddit
Your SSD is pretty full. Usually they slow way down if you don't have like at least a 15% free space margin. I try to have at least 20% free.
Have you run a trim and run the test again?
a7dfj8aerj@reddit (OP)
it is at 90 percent right now all my other ssds doesnt have this massive drop in performance
also this is suppose to be 4tb ssd but it only has 3,63tb of space while another 4tb ssd has 3,72tb of space i am thinking wear space is alredy included in some way
IANVS@reddit
P3 has QLC NAND chips in it. QLC drives performance drops noticeably the more full they are. I'm guessing that's what's happening here...
a7dfj8aerj@reddit (OP)
my ssd was p3 plus and i corrected the name but also it is qlc like you sait although speeds of 15mb is awful even if it is qlc
Cer_Visia@reddit
This behaviour is normal for drives with QLC flash.
Get TLC drives instead. (Kioxia Exceria Plus G3/Heatsink or WD Blue SN580/SN5000 have good value for money.)
jfriend99@reddit
Is that drive nearly full? Full SSDs run a lot slower.
a7dfj8aerj@reddit (OP)
it is only at 90 percent
jfriend99@reddit
That may be why it has slowed down. If you have less than 20% free, you're going to see performance issues when writing.
a7dfj8aerj@reddit (OP)
i have cleared out space and it is worse right now how can i manually do wear leveling to get it over with
jfriend99@reddit
Wear leveling is controlled the SSD's controller and isn't something you can manually mess with. It's triggered by new writes. Do you have another drive you could temporarily move 20% of the data to in order to run another speed test to see if the issue is how full the drive is or if something else is going on with the hardware?
a7dfj8aerj@reddit (OP)
unfortunately other drives have less space cant move
VersaceUpholstery@reddit
Well it's a fresh brand new 0% full SSD vs a 91% full SSD with a bunch of random stuff in it
If you want to bring it back up to speed, do a fresh windows install or try to delete some files. Preferably keeping 15-20% storage free always
a7dfj8aerj@reddit (OP)
this is not the os drive in fact os drive is 99 percent full and rocking 7gb read speed 6gb write speed
this didnt happen when i filled the disk this is same full for a long time but today the performance is terrible
VersaceUpholstery@reddit
Fresh install as in clearing all the storage to 0%, which is one way to speed up an old system
jfriend99@reddit
Your SSD shows 0% free.
It's practically full which is a problem for SSDs. With almost no free space, the SSD spends a lot of time moving data around as write to it to try to "wear level" the SSD memory cells. There isn't a lot written about this, but you should keep at least 10% of your space available on an SSD that you're actively writing to. And, keep in mind that an SSD speed test like CrystalDiskMark is going to be writing a bunch of data to the SSD.