Feedback for readahead
Wolf Wiegand
wolf at kondancemilch.de
Mon Jan 14 10:25:56 UTC 2008
Hi,
(please cc me in replies, as I am not subscribed)
encouraged by Petter Reinholdtsens mail to debian-devel, I checked out
readahead. I am using a fairly standard sid system, using a custom
kernel image without initial ramdisk:
- Adding 'profile' to the kernel command line would not initiate the
readahead profiling process, as /proc/ does not seem to be mounted at
the moment the readahead scripts are running. The error message "grep:
/proc/cmdline: No such file or directory" was printed on the screen.
To workaround this for once, I modified the init script to run the
profiling process anyway, rebooted, and undid these changes. Is
readahead supposed to only work with an initial ramdisk?
- readahead improved the time needed for booting (from hitting 'enter'
on the grub command line to gdm appearing) from about 58 sec to 53
sec.
Cheers,
Wolf
--
My life needs an erase & rewind button. (Calvin)
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