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Computers & Hardware => PC Hardware => Topic started by: snadge on January 14, 2017, 05:01:08 PM

Title: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: snadge on January 14, 2017, 05:01:08 PM
this is from an experiment thats been ongoing a couple of years now

results: (all are MLC drives except the Samsung 840 EVO which is a TLC drive and thus has less endurance)

1) Samsung 840 Pro = 2400Tb
2) Kingston Hyper X 3K = 2100Tb *
3) Corsair Neutron GTX = 1200Tb
4) Kingston Hyper X 3K = 900Tb
5) Samsung 840 EVO = 800Tb

* see article for more info, they used two of these drives as they have special write compression to increase endurance (I dont know how this affects write performance though) so they used two, one normally and one in a manner that the made write compression was useless/inactive which would probably be the one that ended beneath the other


The article does say ..."The 840 Pro was among the most well-behaved drives in the experiment. It remained free of uncorrectable errors until the very end, and it accumulated reallocated sectors at a surprisingly consistent rate." ... which shows with it also being the top performing SATA SSD...is the one too buy if you want SATA - of course you can buy NVMe, M2 and PCIE SSD's now that allow for even faster speeds

http://techreport.com/review/27909/the-ssd-endurance-experiment-theyre-all-dead

UPDATE FOR SAMSUNG 850 SERIES:

Ive managed to find 3D-NAND 850 EVO and PRO results... in a nutshell 3D NAND doubles endurance compared to 2D PLANAR (a far cry from Samsungs ten times figure)

basically:
a TLC 3D NAND drive (http://www.anandtech.com/show/8747/samsung-ssd-850-evo-review/4) (EVO) is good for around 2,000 P/E cycles (a 250GB drive should last on average 23 years writing at 20GB per day)
an MLC 3D NAND drive (http://www.anandtech.com/show/8239/update-on-samsung-850-pro-endurance-vnand-die-size) (PRO) is good for around 6,000 P/E cycles (a 256GB drive should last on average 70 years at 20GB writes per day)
Lifespan with 20GiB of Host Writes per Day with 1.5x Write Amplification

to roughly work out the life span for an EVO drive, simply DOUBLE the total capacity and change it from GB to TB and thats its ballpark lifespan
to roughly work out the life span for a PRO drive, simply times the total capacity by 6 and change it from GB to TB and thats its ballpark lifespan

over the past 2 years my AVERAGE use has been 45.45GB a day... but ive been using HIBERNATE havent I & streaming through the C:\Drive...even when i was sleeping the PC it still writes to the HIBS file (8Gb) for Hybrid Sleep - so ive disabled it, got Opera Portable installed in and running from a 1GB Ram Drive and my usage is now circa 7-15GB a day, some virus scanners such as Kaspersky like to dump a ton of writes when scanning too.. I only observed this in Kaspersky where near the end of its scan it started to dump over 10GB of writes in less than a minute so I cancelled it!
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 05:07:28 PM
the 850 pro which I have with its 3d MLC nand should get terrific results, shame these tests take so long as by the time they finish these are not the latest models on sale.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 14, 2017, 05:36:19 PM
shame these tests take so long as by the time they finish these are not the latest models on sale.

that was my thought exactly - I have the 850 EVO, wished I had paid more for the 850 Pro cos after 3 years Im already at 30Tb due to streaming on KODI, so I've moved the install to my HDD in the hope it will stop the fast uprise in writes

these aren't exact but rough:

year 1 4Tb
year 2 17Tb
year 3 30Tb

Im now keeping a dated a record just to keep an eye on it, if streaming is affecting it then I'm going to have to go back to good old fashioned downloads to the HDD lol
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: j0hn on January 14, 2017, 05:50:13 PM
My OS runs on a Samsung SM951 NVME 256gb. I wish I'd waited for the Samsung 950 Pro to come out but I'm still amazed at the speed of NVME drives. Would love to see a similar test for m2 ultra drives.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 06:24:45 PM
1089 powered on hours so circa 3 years, didnt realise I had the 850 pro this long.

writes is at 8.26tb.

Some of the things I have done.

Created a ram disk for browser temporary files, some people dont realise but browsers generate a ton of writes, e.g. if you watch a video its written to the storage as it plays.  Every image, every page is copied to the storage.
Steam, even if you download games to a hdd it first copies the files to the default cache path which is where steam gets installed which of course defaults to c:\program files, to move that I made a ntfs link using steam mover.

I dont worry about system restore and page file.  Whilst the page file generates writes, moving that to a hdd would slow things down and of course you buy an ssd for speed.  System restore is just too important to turn off.

I usually install new games to hdd but if I later find the loading times are lacking, or maybe get stutters from i/o and I am putting hours into the game then I move it to the ssd.

With all this said tho I do think modern ssd's even consumer one's are more reliable than hdd's.  Its just that psychology that has people wrapping them in cotton wool due to the failures of early generation drives.  One issue is that when ssd's fail its not a soft fail, but it can be completely bricked and thats whats scaring people.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 14, 2017, 06:34:28 PM
1089 powered on hours so circa 3 years, didnt realise I had the 850 pro this long.

writes is at 8.26tb.

Some of the things I have done.

Created a ram disk for browser temporary files, some people dont realise but browsers generate a ton of writes, e.g. if you watch a video its written to the storage as it plays.  Every image, every page is copied to the storage.
Steam, even if you download games to a hdd it first copies the files to the default cache path which is where steam gets installed which of course defaults to c:\program files, to move that I made a ntfs link using steam mover.

I dont worry about system restore and page file.  Whilst the page file generates writes, moving that to a hdd would slow things down and of course you buy an ssd for speed.  System restore is just too important to turn off.

I usually install new games to hdd but if I later find the loading times are lacking, or maybe get stutters from i/o and I am putting hours into the game then I move it to the ssd.

With all this said tho I do think modern ssd's even consumer one's are more reliable than hdd's.  Its just that psychology that has people wrapping them in cotton wool due to the failures of early generation drives.  One issue is that when ssd's fail its not a soft fail, but it can be completely bricked and thats whats scaring people.

what method do you use far RAM cache? (bet this is probs a bit faster too??)

Just I use web a lot and just realised I watch a lot of YT vids as well so... wow 3Tb in 3 years...ive done 10 times that...just goes to show, I dont game much (have few lego games installed on HDD but never play em much) dont have steam either

so yeah I will have to look into making a RAM drive, I have 8Gb so ive got enough
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 07:10:55 PM
I use qsoft ramdisk.

You will also want to cap the disk caching in the browser so to ensure it doesnt overwhelm the ramdisk.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 14, 2017, 07:37:08 PM
I've just installed RAMdisk which only allows 1Gb - I've managed to change FIREFOX successfully, using 400Mb in its own folder on the RAM drive - but - following instructions on a page that showed you how to edit the registry for CHROME to change the location and size of the cache didn't work, so I'm going to have to remove those changes and try something else as I like to use both browsers

can you help with that?

would qsoft be a better option>?

thanks
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 08:28:49 PM
I have a batch file to start chrome, the ramdisk is on R:

Here is the syntax you need.

Code: [Select]
start chrome.exe --disk-cache-dir=R:/CHROME2 --disk-cache-size=524288000
This batch file is in the same path as chrome.exe, if in a different path specify the full path to chrome.exe.

You can also set the cache files parameters using the policy editor templates, but the templates need to be installed first so this is the easier method for you.

Be aware unlike linux ramdisks, windows ramdisks always allocate full amount of ram to the size.

So e.g. on linux a 1 gig ramdisk using 100meg space only uses 100meg of ram., but on windows it uses 1 gig of ram.

An alternative idea is to point the windows user profile temp folder to the ramdisk which would be used for all temporary files on the system, however I dont do that as then you can accidently fill it up and it may also be too small for some stuff.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 14, 2017, 08:50:42 PM
cheers for your help, what about editing the shortcuts Target>?

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disk-cache-dir=G:/Chrome Caching --disk-cache-size=420000000

as this was suggested on the thread I was reading but it said the registry edit would be better through Policies?? (didnt work)

I have 1Gb RAM drive and assigned 400Mb to Firefox cache - and want to assign 400 to Chrome, this leave 200Mb for overheads if i want to add something in there...doubt it

I have it set to save to the SSD and load from SSD BUT i always use Hibernate/Sleep anyway which will help reduce the writes of the drive back to the SSD
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 09:00:55 PM
that will work also I think, I use a batch file as I have a ton of other stuff added that is too long for a shortcut.

registry is outdated, and chrome doesnt check it anymore.  Its either syntax on the command or the policy editor.

http://woshub.com/how-to-configure-google-chrome-via-group-policies/
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 14, 2017, 09:02:58 PM
this is the page i was reading:

http://www.ghacks.net/2010/10/19/how-to-change-google-chromes-cache-location-and-size/
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 09:06:06 PM
well that might work as its writing to the policy registry which is what the policy editor also does, but I believe the command line to be the simplest way to achieve what you want.

When I said outdated I meant that early chrome used to store settings in the registry directly but no longer does.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 14, 2017, 09:07:18 PM
My main drive is a 512GB 950 Pro NVME,  also have 960GB Sandisk,  along with 32GB ram, will have a look tomorrow and see how much I've written.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 09:10:57 PM
pretty high end rig ronski :)

mine is puny to those specs.

I want to upgrade to 32 myself as I have 2 8 gig sticks and could add another 2 but I think one of the 2 empty dimm slots is damaged (you may remember an old post of mine when I upgraded to haswell), so buying another 16 gig of ram to only find out it wouldnt work would be annoying so have stuck with what I got.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 14, 2017, 09:17:45 PM
ive done the shortcut trick and its working spot on, now ive pinned the shortcut to the tray...opened it, ran a few pages and lo and behold the profiles folder has appeared in the RAM drive :)


thanks for showing me this neat trick

does QSOFT allow more than 1Gb to be assigned? (and is it free?)

edit: wow you have 32Gb...plenty there for RAM driving apps etc - ive got 2 spare sockets ive been dying to put another 2x4Gb in so I have 16Gb installed - i'd love to have a non-SATA SSD using PCIe lanes such as the NVMe one
my specs:

- Ivy-Bridge i5 @ 3.4Ghz CPU
- 8Gb Crucial (2x4) RAM
- Gigabyte H77M-D3Hv1 MOB
- 1Gb Gigabyte GTX 650 GPU
- XFX 450 Pro Core Edition PSU
- 250Gb Samsung 850 EVO SSD
- 2Tb WD Red HDD
- 500Gb Seagate HDD
- PCIe WLAN (3x3) Intel 4695 @ 5Ghz
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 14, 2017, 09:21:29 PM
qsoft paid version is needed for really large ram drives, but with 16 gig of ram I have it at 2 gig.

On my laptop I think its 500 meg on 8 gig of ram.

my specs

haswell i5 4670k @ 4.3ghz
16 gig 1600 corsair ram
asus z87-plus
512 gig 850 pro samsung ssd for boot drive
nvidia gtx 1070 gpu
plus bunch of storage hdd's.

interestingly amd upcoming cpu's already affecting intel, they launching an i3 with unlocked multiplier and base clock of 4.2ghz :)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 09:44:26 AM
pretty high end rig ronski :)

Yes it is, spent months building it. Got lucky with some 10% and even 20% discount codes on Ebay, and with suppliers like Scan selling through Ebay I saved a fair bit on the CPU, motherboard and memory  ;D

I used acrylic pipe for the water cooling and there is a build thread here (http://www.overclock.net/t/1576603/my-first-water-cooling-build-i7-5820k-corsair-350d) with various pictures. I still have speed step/turbo boost etc enabled and it currently ticking over at 1200MHz, but will quite happily run at 4.5Ghz when needed, and not much louder - one of my monitors makes more noise than the PC at idle.

I used to run two 680's in my old rig which I still have and use, so have a 680 in each at the moment, I don't game much these days so haven't been able to justify to myself the expense of a newer card, although it really does deserve at least a 1070.

It's been in use for just over a year now, and needs a bit of a clean out.

I'll take a look at setting up a RAM disk as well - as I have plenty.

[Moderator edit to fix the broken bullet-point list.]
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 15, 2017, 11:05:18 AM
sweet unit Ronski - always wondered if Quad Channel makes much difference>? cos a lad told me he stuck to dual DDR3 on his build as DDR4 gives you more latency??? this was an ex work colleague at PC world and he was very good with computers, but if it can receive data 2 times faster than DDR3 and allow for faster transfer speeds then why not?? i just couldnt see it and thought to myself...he just couldnt afford to go that way lol... cos at the time it cost more to get the quad-channel boards and meant you had to get an LGA 2012 skt MOBO+CPU which cost much more...

As for AMD their new ZEN range is supposed to be able to compete with intels range in both speed and power usage (supposedly)

I watched a video on YT last night that said Intels new range is too expensive now,.... that i3 your Chrysalis is on about...they have a new pentium dual-core with Hyper Threading for just 65 and he tested it against the new i3 in gaming and it was literally neck in neck... yet the i3 is twice as much in price, I dunno if the Pentium is unlocked though....but its basically an i3 with slightly less L3 Cache

Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 11:29:13 AM
In my old PC I have an Intel 530 SSD, purchased October 2013, this has had a total 6.62TB of data written to it, with a total power on time of 52 days.

My main PC for the last year has the following.

SanDisk Ultra II 960GB purchased 29 April last year, 2.4TB of writes, 32 days power on time. This drive is used for transcoding Blu Rays, so gets a lot of data written to it.
Samsung 950 Pro 512GB purchased 28 January last year, main OS drive, 2.4TB of writes, total power on time 39 days

I gave up worrying about the amount of writes to an SSD a long time ago, as you can see from the results in the first post if I continue at my current rate I should be good for over 300 years going by the result from the Samsung 840 EVO or 1000 years going by the 940 Pro. I think it safe to say I will have given up long before then  ;)

I've attached a benchmark of the 950 Pro, not as quick as advertised but that's not a controlled test so other things could be affecting the results.

One thing that's increasing is the total power on time, contrary to my wife's opinion I obvious don't spend all my time on the PC

Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 11:46:59 AM
@snadge, I've not benched it in depth, there was a time years ago where I'd play around fine tuning it to get optimum performance out of the memory etc. but from what I read there was very little real world benefit to be had going for faster DDR4 ram so I just left it at default.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 15, 2017, 12:31:22 PM
nice results in AS SSD although the random 4K numbers look surprisingly a little low?  and im told thats one of the most important benchmarks as Windows reads and writes in 4K pages (or something like that) my SATA 850 EVO gets about 30MB/s read 60-70MB/s write on that section...although mines definitely not as fast as it was (maybe cos its 80% full - i do have 10% used for Over-Provisioning too)

I just searched my forum too find out that my SSD is actually only TWO YEARS OLD (Jan'15) and I have 30Tb of writes???

I used to get 1080 on AS SSD - its now 960 and 887... christ im doing something wrong here?? Ive moved KODI to the HDD so any streaming cache should be used on that now (I hope)
I swapped out a pair of 120Gb 840 EVO's in RAID '0' for this 850 - used to get 1000MB/s on that

WHEN I FIRST GOT IT:
(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FYri8Xwe.jpg&hash=de35a3f72347208bf89051382535aa3d)

NOW (test 1)
(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FqB7p30l.jpg&hash=8ab83f353d12b0cf15443646c298e418)

NOW (test 2)

(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FehRTNYu.jpg&hash=bc8b56ba610113a73b5225cba941fa50)

see how its degraded in 2 years after 30Tb of writes... im surprised the read latency is slower? - I have tried modded drivers in the past with good results, currently on default, looks like i might have to go find those modded drivers cos i used to get great results with them.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 01:09:57 PM
It does look rather slow, especially compared to the results here (http://www.legitreviews.com/samsung-ssd-950-pro-512gb-nvme-pcie-ssd-review_174096/5). Disabling my AV gave the Seq Read/Write values a 300MB/s boost to 2010/1426 but other values stayed about the same.

PS. Found this, but haven't got time to investigate further at the moment

http://www.tomshardware.co.uk/answers/id-2925819/samsung-950-pro-low-random-read-write-performance.html
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 04:23:16 PM
As per link in post above, except I set mine to 6 threads.

Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 05:09:10 PM
I just created a 16GB Ram disk, just to see how it performs ;D

Link to version 3.4.8  of Softperfect ram disk which is free (later versions are not) http://filehippo.com/download_softperfect-ram-disk/71289/

Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 15, 2017, 06:32:44 PM
looks a bit slow :)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 15, 2017, 07:50:49 PM
@ Ronski - you might be able try different drivers, maybe some earlier ones might perform better -- there was this great website that did modified drivers of each intel release (*INF) but cant remember what it was called, I will trapes around and see if I can find it...my read latency used to be 0.048, now its 0.176 - still fast but not as fast as before

i'll try that RAM disk in comparison to RAMdisk :)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 15, 2017, 08:40:12 PM
posting my results for qsoft, the test takes ages for 1 gig size even on ramdisk.

I will do another test on newer version of program as I see it seems not even same tests are run now.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 15, 2017, 08:43:15 PM
...... things seem to improve slightly on the latest version of AS SSD, I was using one that was 2 years old - back into 1050 range

Im finding PerfectSoft a bit difficult to use for saving the mounted drive when shutting down, can only do that with an image and I had some issues trying to create that and get it mounted...shame i like the extra usage.

..mind RAMdisk launches as a driver, i cant find it in Task Manager, Services, Startup or Task Scheduler, and it doesnt show the RAM as being USED in Task manager either...PerfectSoft on the otherhand has a program that runs in the tray and shows the memory as being 'used' in Task Manager, also AS SSD would not pick it up (picks up RAMdisk) so I could not bench it with AS SSD lol....but ive benched the 850 EVO in RAPID mode before (which is the same thing) and i get same sorta numbers as your RAMdisk test

(better results on latest AS SSD)
(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FtMmFcob.jpg&hash=bf088aefdac970cf983a8f1a5477f745)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 15, 2017, 08:50:40 PM
updated result attached :)

notes

1 - first test was on balanced power profile where cpu cannot overclock, the profile I run for light tasks.
2 - second test on newer version I enabled performance, so my cpu can use its overclock which is 4.3ghz
3 - this is a cpu bound test hence the above notes, the results are interesting tho given ronski's superior hardware.
4 - for 2nd test I set threads to equal my core count.  so its 4 threads vs ronski's 6.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 15, 2017, 09:22:00 PM
good point! - im on BALANCED too...theres a SAMSUNG HIGH PERFORMANCE option, I do turn of Anti-Virus when i test my SSD but should switch the power too SHP

ive ditched that PerfectSoft of my system, im gunna get the full version of RAMdisk instead - when I do i will post a screenshot on Crystal Disk Mark too :)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 15, 2017, 09:37:10 PM
RAMdisks seem to cause a few small issues here and there, something happened earlier which I thought may be related, cant remember what it was (my memory is terrible - opening links from programs i think) but i have just used VirusTotal Uploader and its not opening the browser to show results
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 15, 2017, 10:30:30 PM
Using RAMdisk/qsoft, I wonder why some are faster than Chrysalis whilst others are slower???

It didn't make a lot of difference with the AV turned off.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 15, 2017, 10:34:32 PM
in my tests I didnt disable any software, chrome etc. all was still running in background you can even see usage reported on my R: which is temporary internet files.  AV is nod32.

Regarding the power profiles its a custom setup, by default the balanced windows profile will still run intel turbo clocks but I customised my balance to not to.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 16, 2017, 01:58:03 PM
me too, I had Firefox with 10 tabs open and 9 programs in the tray running, i did disable Avira's Real-Time Shield for the tests though (and windows defender was off)

couldnt get a qSoft or PerfectSoft too work for me, not properly anyway - back to datarams RAMdisk which is excellent, best of the lot that ive seen....just the free version is limited to 1Gb :(

I want it to be able to load image and save image on startup and shutdown respectiveley even though i use Hibs... also Hibs seems more like sleep, theres no glowing light but the LED on my mouse is still on and USB is charging my fone when its in Hibernate, I thought the system (RAM n CPU where completely off?), when i start it up its like coming out of a sleep...it certainly doesnt saying "waking" (or whatever it used to say on windows when coming out of Hibs)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Ronski on January 16, 2017, 03:38:53 PM
I only disabled the AV, still had FF and other stuff open.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: Chrysalis on January 16, 2017, 08:28:38 PM
I dont reload my ram disk contents on boot, one reason is that its good for security, making sure temporary browser files are not on persistent storage.
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 16, 2017, 08:41:53 PM
AHH AM GUTTED! :(

since messing about with these ramDISKs its messed up my RAMdisk config some how, Firefox is working fine, but chrome seems to create a default/cache folders with loads of F files in there that add up to 26Mb and never change and Ccleaner shows that its still going to the SSD
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 17, 2017, 12:30:02 AM
...anyway asides that (will just have to use firefox for now until i can solve it)  I have ran the Chipset Updater Utility and it says their is an INF chipset update available (this is the driver that channels the data from the SSD across the mobo etc)

I will update it later and re-run the AS SSD test  and post results - i might look for older/modded versions too when i get the time

(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FT2MUqf7.jpg&hash=47c6533e01bc0c525235512e2af2a321)
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on January 17, 2017, 01:14:59 AM
still similar to the last result but at least its above 1000...Samsung Magician reports similar results too, the 4K write started at 90MB/s for about 5 seconds then started to dip...thats the 1Gb SLC cache running out and it having to dump to disk, finishing at 68MB/s was good, but thr 4K-64Thd write test was poor starting at just 5MB/s and slowly rising, rather than starting really fast and dipping..again full cache and running at TLC speeds

still a teeny weeny concerned about the read latency at 0.110ms when it used to be 0.039ms, thats an increase of 300% (3 times slower)

(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FRLw1VoA.jpg&hash=b34f18aaa1dd848259535ef5568535a8)
(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FJupdTOt.jpg&hash=47ab76f35566097129728508348bc78e)

(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FzCSxZms.jpg&hash=31d2c9a0e01bdeebb8865b3439803ca2)


Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: parkdale on January 22, 2017, 10:58:33 AM
@Snadge Just posting results of my new (install and bench on same day same) Samsung 850evo.
My system
M/B Intel DH67cl
Intel Core i3-2100 CPU @ 3.10GHz, 3100 Mhz, 2 Core(s), 4 Logical Processor(s)
16Gb G Skill DDR3 ram
Intel 535 (240Gb) ssd - Windows 7
Samsung 850 evo (240Gb) - Windows 10 pro
+2.5Tb storage on 2 spinning disks
Gigabyte Nvidia 960 4Gb graphics card
Corsair TX650 power supply
I use Intel RSTe Drivers

Benchmark fever forced me to buy replacement for my old ssd... OCZ Agility 3 240Gb has lost over half it's read/write speed :( controller chip (SandForce SF-2281) must on it's way out
and at 5yrs old it's due for retirement. 
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: parkdale on January 22, 2017, 11:26:02 AM
Previous post used Windows 7
Below using windows 10  :-\  something iffy going on here!
edit.. I ticked rapid mode on Samsung magician :blush:
Title: Re: The SSD Write Endurance test has finally ended & results are in
Post by: snadge on February 03, 2017, 02:25:59 AM
Ive managed to find 3D-NAND 850 EVO and PRO results... in a nutshell 3D NAND doubles endurance compared to 2D PLANAR (a far cry from Samsungs ten times figure)

basically:
a TLC 3D NAND drive (http://www.anandtech.com/show/8747/samsung-ssd-850-evo-review/4) (EVO) is good for around 2,000 P/E cycles (a 250GB drive should last on average 23 years writing at 20GB per day)
an MLC 3D NAND drive (http://www.anandtech.com/show/8239/update-on-samsung-850-pro-endurance-vnand-die-size) (PRO) is good for around 6,000 P/E cycles (a 250GB drive should last on average 70 years at 20GB writes per day)
Lifespan with 20GiB of Host Writes per Day with 1.5x Write Amplification

to roughly work out the life span for an EVO drive, simply DOUBLE the total capacity and change it from GB to TB and thats its ballpark lifespan
to roughly work out the life span for a PRO drive, simply times the total capacity by 6 and change it from GB to TB and thats its ballpark lifespan

over the past 2 years my AVERAGE use has been 45.45GB a day... but ive been using HIBERNATE havent I & streaming through the C:\Drive...even when i was sleeping the PC it still writes to the HIBS file (8Gb) for Hybrid Sleep - so ive disabled it, got Opera Portable installed in and running from a 1GB Ram Drive and my usage is now circa 7-15GB a day, some virus scanners such as Kaspersky like to dump a ton of writes when scanning too.. I only observed this in Kaspersky where near the end of its scan it started to dump over 10GB of writes in less than a minute so I cancelled it!

SSD LIFE (https://ssd-life.com/) is a good tool for monitoring your daily usage for a bit and grab your SMART statistics too...check the WEAR LEVELLING COUNT - the VALUE is the life left in percentage..so it starts at 100...mine after 33TB over 2 years is now 93% - the RAW VALUE is the total P/E cycles... mines 139, this means of the ballpark 2,000 for a TLC drive ive used 139 - this means on average, all the cells on the drive have been written too 139 times (ive filled the drive 139 times over)
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: Chrysalis on February 03, 2017, 01:58:11 PM
I think it is more than double, but they set the firmware conservatively.
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: tommy45 on February 05, 2017, 06:02:42 PM
Here's mine with Eset SS av protection paused,and with it enabled  OS win7 SP1 x64, 16gb 3000mhz ram i7-6700k CPU and a Z170 mobo ssd is Samsung 850 Pro 256GB  the top one is with AV enabled
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: Ronski on February 05, 2017, 07:09:57 PM
I think you have Rapid Mode enabled, see what it is with that turned off.
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: tommy45 on February 05, 2017, 09:07:09 PM
I think you have Rapid Mode enabled, see what it is with that turned off.
Your right it is enabled, and there is quite a difference when disabled, but that will have to wait until i next need to reboot the PC again( ain't doing a reboot just to disable it,) & again to re-enable it
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: parkdale on February 06, 2017, 06:13:55 PM
Samsung Magician must be creating a ram drive of sorts.
As I have 16Gb of the stuff to play with it's not to bad, any lower and you could be in trouble.
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: kitfit1 on May 21, 2017, 04:15:43 PM
Just read this thread and thought you might find this interesting. I built a new Ryzen rig 3 weeks ago and bought a Samsung 960EVO NVMe SSD to run on it. Just got round to to benching the drive  :dance: i am well pleased.

(https://forum.kitz.co.uk/proxy.php?request=http%3A%2F%2Foi64.tinypic.com%2Fjh92cj.jpg&hash=777d0813bcf6145bc117515168ec1757)

Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: Ronski on May 21, 2017, 05:55:36 PM
Very nice result there kitfit1, I was looking at a review of the 960 Pro the other day, very impressive. They keep on getting quicker, but I think I'll stick with my 950 Pro M2 for now.
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: BigJ on May 22, 2017, 09:01:33 PM
Thanks for the info snadge.

Also, for anyone with a Samsung 850 Pro not on the latest firmware, it may report the wrong powered on hours. Mines been running 24/7 for about 1.5 years but the figure from smartctl is about 2.5 years!

Latest firmware EXM04B6Q (http://www.samsung.com/semiconductor/minisite/ssd/download/consumer.html?target=4), "Improved compatibility and accuracy of 'Power on hours' in S.M.A.R.T."
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: Chrysalis on May 22, 2017, 10:09:59 PM
given samsung's record of bodged ssd firmware's I will accept the cosmetic uptime bug :)
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: Alex Atkin UK on April 19, 2018, 08:21:04 PM
I realise the thread is a bit old, but wouldn't it make more sense to just turn off the web browser disk cache and increase RAM cache, rather than messing around with RAM disks?
Title: Re: The SSD Write Endurance test results are in: Updated for 850 EVO/PRO
Post by: Chrysalis on April 19, 2018, 10:08:04 PM
Alex that is something I tried in the past when I used to use firefox, when I did that, the browser simply chose to not cache a lot of stuff, so it seems for various content it will either cache on disk or not at all, plus a ramdisk cache is preserved between browser restarts.

Never really tried it in chrome, by then I was just used to having a ramdisk so I still use it.