On Sat, Oct 03, 2020 at 02:47:46PM +1000, Cameron Simpson wrote: > On 02Oct2020 16:57, Chris Green <c...@isbd.net> wrote: > >... by the way I just timed a 'du' on my main directory full of > >(maildir) directories:- > > > > chris$ time du -sm * > [...] > > real 0m0.109s > > user 0m0.032s > > sys 0m0.076s > > > >(and, no, I didn't cheat, that was a 'cold start' du, I hadn't just > >run one before) > > > >Even *copying* the whole of my 1.5Gb mail hierarchy takes only 8 > >seconds. > > Looks like your filesystem is superior to mine. Mine's MacOS apfs, I > presume yours is a good Linux fs of some kind. I'd be surprised if the > SSD hardware were very relevant (other than being an SSD, that is). > Linux default ext4 filesystem. It's an nvme SSD, I had a SATA SSD before and the improvement is *huge*! :-) This is on fairly old hardware, I had to put an adapter card in the PCIExpress slot and play quite a few games with Grub and /boot.
-- Chris Green
