speeding up ugen by an order of magnitude.
Poul-Henning Kamp
phk at phk.freebsd.dk
Wed Jul 7 02:16:26 PDT 2004
In message <20040707091311.GE12877 at cicely12.cicely.de>, Bernd Walter writes:
>On Tue, Jul 06, 2004 at 04:32:28PM -0700, Julian Elischer wrote:
>What about those options:
>- limit the allocated memory to the user request so we don't take the
> whole 128k if not reuired.
>- Do interleaving with 2 or more xfers if the read request is known to
> take more xfers.
I would consider ugen to be a primary candidate to use physio like
I belive scsi-tape drives do ?
--
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.
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