so.. 800p is confirmed with just x2 lanes, not x4. and looking at the pcb/ number of chips, i'd dare say its only 2-3 channels hence the x2 lanes, its probably going to get capped at around 1500-1600 MB/s max and that is being very optimistic.
sequential side of thing is acceptable, we know 4k random read is going to be fast, all thats left is 4k random write.
-
Dr. AMK likes this.
-
Papusan likes this.
-
I wrongly listed my benchmark as a 960 pro, when it is actually an Evo, that is in my signature. Sorry for the confusion.
-
https://www.tweaktown.com/news/60582/phisons-e12-controller-featured-ces-2018/index.html
wowzer E12 controller. MLC too, giving 960 pro a run for it's money -
ole!!! likes this.
-
-
Spartan@HIDevolution Company Representative
-
i must say the 4k write is a bit disappointing considering its optane memory, but there will always be new optane product so that can wait.
jclausius, Spartan@HIDevolution, Vasudev and 1 other person like this. -
I'm using 850 evo and really torrents tax it heavily.
@ole!!! Did you OP Optane SSD? Did you deploy Optane SSDs anywhere and does it really benefit aside from NVMe drives? -
i have so much ramdisks, software, task schduler, settings etc all set on auto start and a bunch of garbage files with load of icons on desktop. so when i boot into desktop you can see the icons all not loading right away with 850 pro, with PM961. but with optane its almost instant, but again thats heavier loads.
game loading a tad faster, depends on the software. file copying, it destroy pretty much ALL flash based SSD except maybe the better ones like sandisk extreme pro or intel enterprise type. when i make a backup image or restore either from/to 900p, it is much quicker than NVMe because of the random read/write.
much to my surprise, file search seems only a bit faster and its a lot of random write involved no idea why.
btw when you torrent on 850 evo and say you try to start a game does it lag/hang for 2-3 sec? assuming its torrent to 850, and game loads from 850
edit: optane doesn't need OP forgot to mention that.Last edited: Jan 22, 2018Papusan likes this. -
-
This is my CDM benchmark on Wine using 850 evo m.2 250GB. The R/W speeds are outrageous and I have no RAMDisk SW or Samsung TurboWrite tech installed on linux.
-
for TLC, im sure dram PLUS their SLC section are doing bunch of work thats why people that buys evo are blinded by the numbers. on MLC its a lot better and more so represent more closely to actual flash performance, or controller performance whichever is the lowest.
something i'd like to add is that, 900p has rather poor performance for files very small block size vs say sandisk extreme pro, or even samsung 960 pro. 512b, 1k, 2k 4k etc are pretty slow when against these flash SSD. -
-
Try grabbing some large .tar, .iso files or dd from a DVD. Next copy location to location, and time it. What 'ballpark' i/o throughput are you seeing? IIRC, I'm seeing something like ~2.5 to 2.65 GB/s on the Samsung 960s using large file copies. However, this was copying with two disks... copying disk to disk (going from nvme01 to nvme02).Last edited: Jan 25, 2018Vasudev likes this. -
-
-
you can see the Q1 sequential read/write performance for device you are copying it to, how many small files sequential copies affect which drive etc, which also shows sandisk extreme pro SATA SSD is much superior to even NVMe 960 pro when comes to lots of small block size files.Dr. AMK likes this. -
My numbers are from when I was moving some VMs within Linux Mint. I was seeing close to the spec write performance of the Samsung 960 NVMe drives.Last edited: Jan 25, 2018 -
@tilleroftheearth, I know you'd rather have text instead of a video, but some of the reporting in this clip seems like it applies to your unorthodox work environment. I think the endurance part of the Optane 900P may be of interest to you.Last edited: Jan 25, 2018 -
im on window server OS, that 2GB limit becomes like 512GB so it became unusable for me to copy big files and i use fast copy, doesn't go through ram at all, much better and faster than even terracopy. it also shows a lot of info too.
850 evo will not have those numbers for sure unless ram is involved, since SATA SSD max around 550MB/s, and 4k random should be around 40-50MB/s max. -
My post was in response to this thread - http://forum.notebookreview.com/threads/intel-optane-900p-ssd.810226/page-12#post-10670068 by @Vasudev who was running Crystal Disk Mark under Wine (which purports Wine Is Not a windows Emulator) and had some fantastic bench numbers on the 850 EVO.Last edited: Jan 25, 2018 -
-
Vasudev likes this.
-
---
Edit, FWIW:
The power plan in Windows 10 has PCI Express -> Link State Power Management -> Setting: Off
In UEFI/BIOS, the following are already configured:
PCIE ASPM Support <Disabled>
PCH PCIE ASPM Support <Disabled>
PCH DMI ASPM Support <Disabled>Last edited: Jan 25, 2018 -
-
writing small files as much as possible at lowest QD possible (QD 2 with ATTO). notice how first 2 picture both are 961 or 960 EVO oem.. but 2nd picture shows pure trash performance vs the first. in comparison look at sandisk extreme pro.
its likely read is not stored in the SLC layer so that pure junk read performance is likely true performance of TLC flash at small block size file level. which also explains why my hyperx 3.0 is pure sh!t too, just like many people reviewed the drive also mentioned slow files copy into it is slow as hell.Vasudev likes this. -
What is the PM961 page size? If it is 4K or bett than that may explain the read performance, but other than Atto's .5K to 4K, the rest of the numbers on the Samsung look good compared to the other two.
-
-
Do you know if the disks were secure erased before the ATTO test? Furthermore, do you enough about the ATTO test's timings? It has to put files on the SSD, correct? If pages are dirty, there's a write amplification problem to worry about. Does ATTO take things like that into account?
[ Note, this is a bit dated (as it won't cover some of the newer technology like TLC, 3D vertical, etc.) , but for anyone wanting a primer behind on the technology behind SSDs I *strongly* recommend this entire article, but one can start here - https://www.anandtech.com/show/2738/5 thru https://www.anandtech.com/show/2738/14 ]
What is strange, if you look at WRITE speeds the PM961 has better numbers hands down. It is READs that are interesting, but only until the file size reaches 8K. At that point, PM961 equals and then gets better performance numbers. My post above questions if it is something to do with the NAND page size, the ATTO test, or perhaps testing against a non-secure erased SSD.
-------
Read Speeds
PM961
.5K = 527 MB/s
1K = 1062 MB/s
2K = 2103 MB/s
4K = 4161 MB/s
8K = 38,060 MB/s
16K = 271,302 MB/s
32K = 323,649 MB/s
Sandisk
.5K = 14,123 MB/s
1K = 19,726 MB/s
2K = 22,740 MB/s
4K = 26,820 MB/s
8K = 43,892 MB/s
16K = 91,799 MB/s
32K = 145,244 MB/s
Kingston
.5K = 3170 MB/s
1K = 5881 MB/s
2K = 9633 MB/s
4K = 13,811 MB/s
8K = 18,071 MB/s
16K = 20,103 MB/s
32K = 30,736 MB/sLast edited: Jan 31, 2018Vasudev likes this. -
-
-
Last edited: Feb 9, 2018alexhawker, t456 and jclausius like this.
-
PCIE has lower latency, not to mention PM961 is TLC drive so it has SLC caching. so once SLC filled up TLC write is only 600MB/s and thats with multiple channel TLC writing at the same time (kinda similar raid 0 with SSD controller being the raid controller, more channels flash = faster sequential output, also another reason why optane memory m.2 is only 300MB/s because only 1-2 channels where as optane can max at 7 with 900p)
it should go like this if my guess is correct (tho i have no idea if this is how ATTO works)
ATTO --> SLC --> many TLCs flash for write
many TLCs --> SLC/no SLC --> ATTO for read
wrhite test: 32M OR 64K writes into SLC so write performance same, however it goes into SLC to TLC soon enough that its no longer stored within SLC cache, so that means when read test happens, it wont come from SLC caching, it'll come straight from TLC.
read test: assuming the page size is 16K, then a small 64K would be broken into 4 * 16K which is either 4 channels at QD1 or 2 channels for QD2 (and so on) dependent on the firmware how controller reads it's flash. assuming it is 2 for QD2 for 64K, then 32M would 512 * 64K which would put this to multiple channel and multiple QD, thus increasing the speed drastically (saying QD here isnt the right term but idea is the similar)
perhaps this is the reason behind it and shows true TLC performance, or at least samsung's TLC performance.
if i were to recommend to a friend yea i won't bother telling them to buy optane, a PCIE based SSD is good enough for them. -
copying almost 70k files, only 120MB in size. 1/3rd of files less than 1k, 1/3rd is 3KB and 1/3rd is 5KB. writing to Z:\ which is a ramdisk to remove any write bottleneck so read speed will be the bottleneck here per device. Fastcopy 2.11 use 1 thread read, 1 thread write mode, bypass OS cache so its not device writes into OS cache (ram) then into ram disk again.
-
Vasudev likes this.
-
edit: i just made another one uploaded to mega. donno how to do one without encryption key its pretty annoying. https://mega.nz/#!yAo1AbgC!dnmAjgJDmJysMR1ixPOvT_JcI44Er6SaNpSyQ60mpxMLast edited: Feb 2, 2018Vasudev likes this. -
Papusan likes this.
-
-
defaults
- buffer 256 MB
- Alt Stream uncheck
- ACL uncheck
- verify uncheck
- ETA finishTime uncheck
speed control at full speed
I/o settings
- Max I/O size 1
- num of overlap I/O issue 1
- make sure MinSectorSize box unchecked
- OS cache settings, change both on NTFS and FAT box to 1. (default is 64 on NTFS and 128 on FAT).
- uncheck box directory fetch
rest don't really matter. -
What Ram Disk should I use? I'm using IMDisk, and with those settings, I see the 'WRITES' to the ramdisk are the bottleneck. Reads from the Samsung 960 Pro are done 14s into the test, but there are still 72MB of writes to the ramdisk needed to finish.
Last edited: Feb 3, 2018ole!!! likes this. -
I use primo ramdisk, cluster size is 4k, v5.6.0
jclausius likes this. -
@jclausius how did the test go with those settings? btw i use logical, scsi disk. not direct I/O.
Last edited: Feb 4, 2018 -
Sorry didn't get a chance to mess with it. I was working on the Linux side of things this weekend. Something is definitely wrong as I don't think the NVMe should perform that poorly on Reads and the Ram Disk should outpace that. Not sure what gives, but this is not a priority to fix as I'm not really using Win 10 much these days.
That reminds me. What OS was this tested under? I'm running Win 10 pro with no tuning after plain driver installs. What clocks? I run just stock.ole!!! likes this. -
-
Intel Optane 900P SSD
Discussion in 'Hardware Components and Aftermarket Upgrades' started by tilleroftheearth, Oct 27, 2017.