pentiumspeed wrote on 2020-11-03, 01:54:

Let say I have 6GB of assorted files of all sizes, I get this: At beginning, average 30mb/s then suddenly plunge to steady 10-1 […]
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Let say I have 6GB of assorted files of all sizes, I get this: At beginning, average 30mb/s then suddenly plunge to steady 10-15MB/s average. Drivers all in place on HP Elitedesk 800 G1 and running a 1TB SSD.

But if I have different file compressed into one file or just one big file like PS4 update file that weighs in 1.1GB for example, I get excellent up to 50mb/s.

What is going on behind the scenes?

Cheers,

Where did you buy that branded stick and what brand/model is it ?

^ I wonder the same.

Also, HDTune (old Freeware) can do speed & surface tests. I often use it to bench CF cards in an USB 3 card reader.

What exactly is the brand and model number of the stick?

Lots of USB 3 memory sticks are dog ass slow for writing. I have a WD Easystore 128GB stick that only writes at 30-40MB/sec but the read speed holds steady at 125MB/sec. I also have a Sandisk Cruzer Glide 128 that writes at 50-60MB/sec and reads at 240MB/sec. This is to and from a Corsair MP510 960GB M.2 SSD.

If you want RAW speed, get a NVME drive and plop it into a usb/nvme adapter.
https://www.tomshardware.com/reviews/plugable … ure,6015-2.html

just make sure you get a reputable adapter, not the cheap chinese shit they peddle on epay.

Noticed this too after putting together my Ryzen system. Mine is a Sandisk Ultra 128gb USB 3.0, starts off fast then fizzles out.

Also tested it on my pc at work and does no better there either. Perhaps the stick drives have no "stamina" 😁

Yeah, most thumb drives are garbage at least in terms of write speed. My cheap 32 and 64GB Kingston sticks only write at around 15 MB/s. Read speed is pretty decent though: a steady 170 MB/s. Those speeds are consistent across all of the PCs that I use them on.

Even USB-powered spinning rust absolutely puts those wimpy thumb drives to shame, at least in terms of write speed. My Toshiba external HDD from 2015 writes at around 155 MB/s and reads at 160 MB/s .

To be fair to the USB sticks, they are almost literally the size of your fingernail. and can store 100's og GB of data easily. give them a break.

To say it again, a NVME drive inside a quality adapter will run absolute circles around all other usb drives

pentiumspeed wrote on 2020-11-03, 01:54:

Let say I have 6GB of assorted files of all sizes, I get this: At beginning, average 30mb/s then suddenly plunge to steady 10-15MB/s average. Drivers all in place on HP Elitedesk 800 G1 and running a 1TB SSD.

But if I have different file compressed into one file or just one big file like PS4 update file that weighs in 1.1GB for example, I get excellent up to 50mb/s.

What is going on behind the scenes?

Copying small files is inherently slower than copying large files, in almost all cases. I see no issue here.

Exactly. Fast then fizzes out then slow on lots of small files. Best on large files. Doesn't make sense. Used same sticks both cases and is very consistent. The usb sticks I have are reliable and are usb 3.0 plugged in usb 3.0 ports.

I don't like this how it works.

Good suggestion on NVME to usb 3.0 adapter in the future. For now, I'll try a small old SSD in another usb 3.0 external box.

Update:
Tried again, got consistent 150MB/s as as low as 30MB/s but I still see: small files writes fell to 3MB/s still if too many but happens quicker.
Using a old Intel 710 100GB SATA SSD in a reused seagate external box (was 2TB SMR). Better. I have many 100GB 710 for other uses also intended for windows 98se. Intel 710 is designed for high usage. Same as intel 320 but 710 has 1 more chip to usual 10 NAND ICs and 20GB reserved for reallocation, good turnkey for ease of use with good life.

Back in the day when OCZ was making usb sticks, I found one that was best, dual channel using 2 NAND ICs in parallel to speed up. Got great results. Is there good brand that is based on this design and for usb 3.0?

Cheers,

pentiumspeed wrote on 2020-11-05, 21:03:

Exactly. Fast then fizzes out then slow on lots of small files. Best on large files. Doesn't make sense.

Larger files are faster than smaller files. As for "Fast, then slow", it's because Windows at least caches the copy, so it shows faster than actual transfer rates at the beginning. It's all normal.

pentiumspeed wrote on 2020-11-05, 21:03:

Exactly. Fast then fizzes out then slow on lots of small files. Best on large files. Doesn't make sense. Used same stic […]
Show full quote

Exactly. Fast then fizzes out then slow on lots of small files. Best on large files. Doesn't make sense. Used same sticks both cases and is very consistent. The usb sticks I have are reliable and are usb 3.0 plugged in usb 3.0 ports.

I don't like this how it works.

Good suggestion on NVME to usb 3.0 adapter. I'll try a small old SSD in another usb 3.0 external.

Cheers,

is NVME going to make a lick of difference over SATA when connecting through USB 3.0? Even with fast SATA SSDs, you are going to be limited by USB 3.0.

Now if it was USB 3.1 Gen 2 then, sure, NVME should be faster.

Ironically this is exactly what customer usage is! Lots and lots of small files, that meant photos.

Cheers,