Am Tue, Feb 18, 2025 at 11:53:48AM +0000 schrieb Michael: > > Your expectations have some vague assumptions: > > Yes, I was just trying to point loosely at the order of magnitude as an > indication of something being faulty in the USB Philip was trying to format. > > > - the stick achieves full speed of its USB protocol > > I haven't yet found a USB stick which reaches the maximum USB protocol > speeds. > The old USB 2.0 stick I used will not go above 11-12MBps during large writes > and around twice as fast on sustained reads, well below the advertised USB > 2.0 > speed of 60MBps.
I’ve never seen more than 40 MB/s, also with USB 3.0 HDDs attached to a 2.0 port. > > - it keeps that throughput over time > > Once buffers are saturated write operations will settle at what the device > can > achieve. I have observed writes slow down when the empty space left is > getting low. Which buffer? Sticks don’t generally have one, let a lone an equivalent to an SSD’s SLC cache. I guess you mean the host’s cache? -- Grüße | Greetings | Salut | Qapla’ Please do not share anything from, with or about me on any social network. For security reasons, all text in this mail is double-rot13 encrypted.
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