Pays to check your settings.

Firegod · 14 Oct 2023 at 17:14

Just an anecdote really. I was copying some files around, not many items per folder, maybes 1-2 items in each folder (a few gig each). Going from a USB3 drive in a front USB port to my m.2 OS drive I was maxing out the transfer.

But I noticed when copying the same item from my m.2 OS drive across to my Samsung 870 QVO SATA drive that the speeds were all over the shop and on average, pretty dire. Slower than the USB3 connection. Ouch.

So I did a little digging and noticed the drive was set to "power save" mode in the Samsung software. Ahh! Did the same transfer again in "performance" mode.

That's more like it.

I can sleep at night now lol. "Cool Story Bro" gif goes here.

Firegod · 14 Oct 2023 at 21:15

Aye not quite sadly, it didn't even start quick then die when the cache exhausted - It was just crap from the get go of the copy. Second screenshot kinda shows this. I was only writing a few gig. Soon as I put performance mode on it was like taking the handbrake off. But thanks for the linky!

Firegod · 14 Oct 2023 at 21:42

Minstadave said:
The last transfer is much faster than an 870 QVO can read or write….

I did a transfer back and it was around 550. Which seems more reasonable. But it defo reported that initial figure lol. Perhaps windows getting a bit excited with itself!

Firegod · 14 Oct 2023 at 21:47

Minstadave said:
Samsung used to let you use RAM as a cache for SATA SSDs, I wonder if that’s what was going on.

Ah maybes. Performance mode did mention something about dram.

Firegod · 16 Oct 2023 at 10:10

Cyber-Mav said:
thats some performance mode you got there that more than triples the sata3 interface speed.