Improving the kernel/i386 timecounter performance (GSoC proposal)

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Mar 27 13:56:58 PDT 2009


In message <17560ccf0903271348p52351481v4cc83c14037e8836 at mail.gmail.com>, Prash
ant Vaibhav writes:
>Actually OS X is more similar than that: the shared page also contains
>functions that can be called by user applications, though their entry points
>are fixed and they're not in any particular format like elf/mach-o.
>Userspace implementations of gettimeofday, bcopy etc. are provided in the
>kernel itself, which is a nice design imo as the specific version to load is
>chosen by the kernel at boot time depending on processor capabilities.

That would get my vote.


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


More information about the freebsd-current mailing list