2011/3/18 Kay Sievers <kay.siev...@vrfy.org>: > On Fri, Mar 18, 2011 at 14:40, Gustavo Sverzut Barbieri > <barbi...@profusion.mobi> wrote: >> On Fri, Mar 18, 2011 at 10:52 AM, Andrey Borzenkov <arvidj...@mail.ru> wrote: >>> On Fri, Mar 18, 2011 at 12:35 PM, fykc...@gmail.com <fykc...@gmail.com> >>> wrote: > >>>> 1. What can readahead affect boot-time? >>>> Sadly observed negative affect -- boot-time increases at least 1s. >>> >>> From subjective feelings (no real measurements) I confirm it. >> >> I noticed it as well, even with my Macbook Pro i7 with 8Gb RAM and >> 128SSD using btrfs. > > It's ~0.5 sec faster here with readahead on a SSD. Each time runs readahead-replay may cause readahead-collect to record more blocks to read ahead -- size of "/.readahead" never reduces.
Also I found "/.readahead" recorded files like ".xession-errors" which is written only, thus should not be read ahead. Maybe adjust readahead-collect-done.timer to 5s will help. _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
