On Tuesday Jan 21 2014, [email protected] wrote: > I'd say that's the difference between an ssd and a 5400rpm platter disk. > > I have seen this deteriorate with lots of files, but then the difference is > an order of magnitude. > > I could of course be mistaken and I'm happy to do more testing... > Just don't know what really. > On 21 Jan 2014 15:05, "Ken Mankoff" <[email protected]> wrote: > >> >> Rules what out? It took 2x as long (10 seconds) just to list the >> files. Seems like that might be part of the problem. >>
>>>>> related. >>>>> $ time ls -R1 ~/Maildir >>>>> I guess for the filesystem performance, we should discard the output; and free various file-system caches; not sure how to do that on MacOS, but on Linux ((for my 50K messages): % sudo sh -c 'sync && echo 3 > /proc/sys/vm/drop_caches' % time ls -R1 ~/Maildir > /dev/null 0.28s user 0.07s system 16% cpu 2.056 total if we do it again (with a warm cache): % time ls -R1 ~/Maildir > /dev/null 0.18s user 0.03s system 99% cpu 0.213 total >>>> MBP 2.26 GHz Core Due 2 >>>> 8 GB RAM >>>> 5400 RPM drive >>>> >>>> | real | 0m10.571s | >>>> | user | 0m1.134s | >>>> | sys | 0m0.520s | >>>> >>>> ~100k files. -- Dirk-Jan C. Binnema Helsinki, Finland e:[email protected] w:www.djcbsoftware.nl pgp: D09C E664 897D 7D39 5047 A178 E96A C7A1 017D DA3C -- You received this message because you are subscribed to the Google Groups "mu-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
