Fedora 10 - Boot Analysis
Harald Hoyer
harald at redhat.com
Mon Dec 15 15:18:28 UTC 2008
Dan Williams wrote:
> On Mon, 2008-12-15 at 15:47 +0100, Harald Hoyer wrote:
>> http://www.harald-hoyer.de/personal/blog/fedora-10-boot-analysis
>>
>> A brief Fedora 10 boot analysis.
>>
>> Hardware: Asus EeePC 901 with a flash disk.
>>
>> Time taken from entering the encrypted root disk password until the password can
>> be entered (after pressing return in gdm). The 10 second wait in nash is ignored
>> here (which really annoys me and should be configurable in /etc/sysconfig/mkinitrd).
>>
>> Default Live CD Installation: 39s (bootchart
>> http://www.harald-hoyer.de/files/f10boot/bootchart-nonread.png)
>>
>> After installing readahead and running one collection boot process: 36s
>> (bootchart http://www.harald-hoyer.de/files/f10boot/bootchart-readahead.png)
>>
>> At this point, I recognized that all processes (NetworkManager and newaliases),
>
> Odd, NM isn't intentionally calling fsync() (it's not anywhere in the
> code), nor does glib do that anywhere that I can find. I can't think of
> anything that would require an fsync for NM, so I'm interested in
> finding this and killing it.
http://www.harald-hoyer.de/files/bootchart-16.png
looks very much like it... but I could be wrong, though.
>
> dan
>
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