Some FreeBSD performance Issues

[Peter Jeremy]

On Fri, Nov 09, 2007 at 08:36:32AM -0800, Randall Hyde wrote:
>To answer a different question in the thread, I'm pretty sure I'm making
>only one FreeBSD call per byte, at least in one of the cases I posted.

How about using ktrace or similar to confirm this.

>I wonder if I'm only getting one character output per time slice, or
>something like that?

Maybe, though I don't understand why this would occur.  If you time(1)
your program, what are the real/user/system time breakdown?  That will
help clarify where the slowdown is located.  Have you tried the dd(1)
command suggested.

-- 
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an RFC2821-compliant MTA.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-hackers/attachments/20071110/e3093469/attachment.pgp