On Mon, Dec 03, 2018 at 02:05:29PM +1100, Erik Christiansen wrote: > On 03.12.18 00:47, Adam Borowski wrote: > > On Sun, Dec 02, 2018 at 11:53:39PM +0100, Alessandro Selli wrote: > > > On 02/12/18 at 17:23, Adam Borowski wrote: > > > > You'd want to set noatime on every machine > > > > you control. > > > > > > > > > Some mail servers and clients do use it to determine if a mail was > > > read after it arrived. In this case, it'd be better to have it set on > > > /var. > > TL;DR: Use relatime there, as noatime will break mutt.
Hmm... https://gitlab.com/muttmua/mutt/commit/489a1c394c29e4b12b705b62da413f322406326f https://github.com/neomutt/neomutt/commit/816095bfdb72caafd8845e8fb28cbc8c6afc114f > > That's no more. And, let me clarify: atime was used for mail: > > * only with mbox (Maildir never suffered from this issue) > > * only on the local machine > > * only by the shell to say "You have new mail." vs "You have mail." > > -- not even by the mail client > > Not true, according to the on-line manual for my current mutt > installation: > > » Other possible causes of Mutt not detecting new mail in these folders > are backup tools (updating access times) or filesystems mounted without > access time update support (for Linux systems, see the relatime > option).« In the very post you're responding to, I started with "That's no more.". > > So the whole effort gave you just a single word in a message, that many > > people even didn't notice. > > > > And, popular local mail clients are already patched to update atime > > explicitly. > > > > Ie, atime for mail is an ex-reason. > > A fine assertion, but wiser is to check the facts. And even wiser to actually change things you don't like. :) > It would seem then, that noatime will break mutt, but relatime is OK, > and is now the default. IIUC. realtime greatly reduces atime writes, but it's still too much. Case in point: it's the likely culprit for wasting the SD card that started this thread (on a mostly-read load). And, update frequency of 1/day happens to match the typical backup schedule, making it ruin snapshots just the same as strictatime would. So it's time to kill the nasty thing. Meow! -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ Ivan was a wordly man: born in St. Petersburg, raised in ⢿⡄⠘⠷⠚⠋⠀ Petrograd, lived most of his life in Leningrad, then returned ⠈⠳⣄⠀⠀⠀⠀ to the city of his birth to die. _______________________________________________ Dng mailing list [email protected] https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
