R.L. Dane    🍵 Oct 29

#USB thumb drives, folks! 🤦‍♂️

$ doas dd if=Fedora-KDE-Desktop-Live-42-1.1.x86_64.iso of=/dev/sda bs=1M 2712+1 records in 2712+1 records out 2844538880 bytes (2.8 GB, 2.6 GiB) copied, 414.401 s, 6.9 MB/s (in another window) $ time sync real 5m15.518s user 0m0.001s sys 0m0.003s
Show threadDendrobatus AzureusNov 1

@rl_dane

Up to now I have not seen any USB thumb drive which can write as fast as it reads in practicality

The 64 to 256 GB thumb drives that I work with, write at about 6 to 8 Mbps when they are in sync mode

In the beginning the drive seems to lie and shows speeds that are close to the absolute speed of the USB 3 Connection. In reality is not really a lie because the Linux Operating System loves to cache it's file systems, especially if they're native, like ext4

However the file system warns you never to remove the thumb drive until it's actually done writing. If you use something like Midnight Commander it will show you that the writing speed drops all the way down to six to eight megabytes a second!

That happens on both modern systems and on Old obsolete systems with just USB 2

#USB #USB3 #USB2 #technology #filesystem #ext4 #thumb #drive

Show threadBitslingers-R-UsNov 1
@dendrobatus_azureus @rl_dane Does Linux have the equivalent to BSD’s iostat -w 1 (diskname)?
Show threadDendrobatus Azureus

@AnachronistJohn @rl_dane

For some reason and it wasn't installed on my Debian based MX Linux distro.

I've just installed sysstat, the package it comes in, and I have to Thank you for pointing me to the program

#IOstat #USB #USB3 #USB2 #technology #filesystem #ext4 #thumb #drive

Nov 1 at 5:27pmWeb