On Mon, May 23, 2011 at 06:32, Chen Jie <ch...@lemote.com> wrote: > 2011/5/20 Kay Sievers <kay.siev...@vrfy.org>:
>> Why is blkid called 11 times? You have that many partitions? > I guess, sda-sda4 plus loop0-7 and plus ram0-ram15. What do you need 16 ramdisks for? Not sure if anything today should use them. > I collect all block devices by "udevadm monitor --kernel" and then > triggering devices' adding, see attachment for the block list of the > test box . Things like edd_id you can just not enable in udev 170. > Some rules added by distro, e.g. 80-alsa.rules, does some thing like > "/etc/init.d/alsa-utils start" Should not be needed with recent alsa-utils which has native systemd suspport. The old shell scripts used to do a lot of nonsense. >> Is the speed of the disk really only 18MB/sec? That's expected? > Yes. that's low. I see. > Thanks ALL, I removes some rules and saves ~200ms. I did a > bootchart(see attachment "Loong-sid-20110523-1.png"). The boochart > diagram shows it spends 1s between udevd starts and forks the first > helper program. Seems udevd itself starts too slow on the test box. I would expect it's mostly I/O that happens during that time, which makes things look slow. You might want to try udev version 170. We could try to run trigger and udev.service in parallel. Kay _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
