On 3/1/21 11:34 PM, Frederic Muller wrote:
On 3/2/21 2:15 PM, Samuel Sieb wrote:
On 3/1/21 10:37 PM, Frederic Muller wrote:
I bought a rather cheap but not so cheap 1TB SSD drive advertised at
rw speeds of 450MB/s. I have 2 thinkpads, one X1 3rd gen and one X1
6th gen. Now here is what happened:
1. On 3rd gen laptop with F32 I tested (and made a full backup) :
45MB/s (NTFS)
2. I installed a the "brand new" F33, restored my backup and...:
85MB/s (NTFS)
3. Since I was a tad late updating I told myself let's do it on the
6th Gen too. Did a full backup on F32 at : ~400MB/s!!! (NTFS and ext4
- did several backups)
4. I installed a fresh new F33 and the restore speed was then...
50MB/s :-( (ext4)
5. I just restested the disk on the 3rd gen laptop and I am now
(ext4) at 45MB/s (I also just upgrade my BIOS to its latest version
for this test).
So I was wondering if there was any logical explanations and things I
could do to ensure I use the disk at its maximum speed.
There are a lot of factors and you've left out some details. Is this
internal or external. If external, then USB2 or USB3 (or something
else)?
As the title says it's indeed USB. Both machines have USB 3 ports, which
I used without any hub or middle man.
Ugh, sorry, don't know how I missed that. Are you sure that you plugged
it into a USB3 port? Some laptops have both. Also, check the log to
make sure it is being recognized as a full speed USB3 device.
And while I was not really testing per se (since I was ok with the
initial 45MB/s, I really noticed when it went to 80+ and then 400+ ...
and then down to 45.
Anyway since I am somehow back to initial lousy speeds and saw it way
faster on the same machines, is there a "reliable" way to go back to
more decent speed then?
I expect it is something to do with the port, especially since it was
faster on the one laptop. I haven't had speed issues like that when
using USB3 ports with USB3 external drives.
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