Hm... On Wed, May 27, 2015 at 10:56:48AM +0100, Jonathan Dowland wrote: > On Fri, Apr 24, 2015 at 04:12:15PM +0200, Nicolas George wrote: > > Le quintidi 5 floréal, an CCXXIII, Vincent Lefevre a écrit : > > > Now I wonder whether the use of the hash by ext3 is a good idea... > > > > > > Alternatively, I suppose that a SSD disk could improve things. > > > > Well, filesystems can not be optimized for every use. > > Ext3 dates from 2001, and is an incremental update to the ext2 design from > 1993. Large-scale storage on flash devices was very uncommon then, and the > rise of modern SSDs didn't start until around 2008 iirc. > > > Having myriads of small files has always been a bad idea anyway, it trashes > > the inode and dentries cache, it costs extra disk bandwidth (because you can > > not read half a sector at the end of the file) and latency (because of all > > the seeks, even when reading in order, it will be more fragmented than a > > single file), etc. Of course, nowadays, huge RAM and SSD will mitigate the > > issue. > > Mail storage is a lose-lose situation, really. Maildir improves the > performance > and reliability of parallel operations on a mailbox versus mbox, but is less > space efficient precicely because of the metadata overhead, especially for > large mailboxes. One should keep high-read boxes in Mailidir and low-read, > large-size archival mailboxes in mbox, potentially compressed. The archivemail > tool can assist with moving one to the other. > > > It is a tragedy that a standard, robust and efficient format for mailboxes > > was never designed and adopted. > > It's a tragedy that many such standards were invented :)
Obligatory XKCD reference: http://xkcd.com/927/ -- Karl E. Jorgensen -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150527112621.ga8...@eee.karl.home.jorgensen.org.uk