On Tue, May 19, 2015 at 5:39 PM, Cristian Rodríguez <crrodrig...@opensuse.org> wrote: > On Mon, May 18, 2015 at 7:24 AM, cee1 <fykc...@gmail.com> wrote: >> 2015-05-17 17:45 GMT+08:00 Martin Pitt <martin.p...@ubuntu.com>: >>> Hello cee, >>> >>> cee1 [2015-05-16 0:46 +0800]: >>>> Thanks for the suggestion, it was other processes running in parallel >>>> which presumably consuming lots of IO, after sending SIGSTOP at the >>>> first (and SIGCONT later), the unit loading time is decreased to >>>> ~100ms. >>> >>> You probably want to use some readahead solution. We found that it >>> makes a significant improvement on ARM boards with slow MMC cards. > > You could also > > posix_fadvise(fileno(f), 0, 0, POSIX_FADV_SEQUENTIAL); > in the bits that load the unit file..the kernel is free to ignore that > advice however.
This however.. won't be of any help, as the default readhead window is 128kb.. which is way bigger than any unit file. _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
