In the demo below, dd uses 0.665s to write 1GiB of zeros.
sha256sum uses 4.285s to calculate the sha256 of 1GiB of zeros.
wc uses 32.160s to count 1GiB of zeros.
Linux localhost 5.2.8-200.fc30.x86_64 #1 SMP Sat Aug 10 13:21:39 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
coreutils-8.31-2.fc30.x86_64
Hey. Partition is with its default settings.
$ mount | fgrep /run/media/$USER
/dev/sdc1 on /run/media/yk/maxell type fuseblk
(rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2)
$ lsblk -bo name,maj:min,fstype,mode,type,mountpoint,tran
NAME
Hi Ricky,
On Sat, Aug 17, 2019 at 01:23:31PM +0300, Ricky Tigg wrote:
> Component under* Linux Fedora*: coreutils.x86_64 8.31-2.fc30 @updates
>
> Changes set are no applied to a locally plugged external device
Perhaps the external device's filesystem does not support Unix access
controls.
