Hello.  This is just cool!

I was wondering, did you receive my mail on this issue?  It seems that I
sent mail to you before too, but never got a reply.

Thanks.

  - Hiten

On Mon, Jan 06, 2003 at 02:28:52PM +0100, Poul-Henning Kamp wrote the words in effect 
of:
> I have committed the bits needed to use GCC's basicblock profiling
> on -current.
> 
> Make sure to recompile the kernbb(8) program first.
> 
> Here's an simple example how to profile a single file (vfs_bio.c):
> 
>       cd /sys/i386/conf
>       config YOURKERNEL
>       cd ../compile/YOURKERNEL
>       make depend && make all
>       rm vfs_bio.o
>       make vfs_bio.o DEBUG="--test-coverage --profile-arcs"
>       make all && make install
>       reboot
>       # run your test.
>       kernbb
>       cd /sys/i386/compile/YOURKERNEL
>       gcov vfs_bio.c
>       # examine vfs_bio.c.gcov
> 
> If you want to profile multiple files, you just give them all the
> same treatment as vfs_bio.
> 
> It's perfectly possible to profile the entire kernel if you want to.

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