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From: Hans Petter Selasky <hselasky@c2i.net>
To: "M. Warner Losh" <imp@bsdimp.com>
Date: Wed, 4 Mar 2009 20:31:36 +0100
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Cc: freebsd-usb@freebsd.org, thompsa@freebsd.org
Subject: Re: Low perfomance when read from usb flash drive
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On Wednesday 04 March 2009, M. Warner Losh wrote:
> : >
> : > If you do change to filters then this is much easier with taskqueues as
> : > it has a fast variant, otherwise you would need an intermediate step in
> : > order to signal the existing usb threading scheme. The taskqueue
> : > changeover will be happening soonish anyway.
> :
> : I am not going to do anything with filters. I'm going to try some other
> : things.
>
> Then you will always have the scheduling delay...

But the scheduling delay is not in the millisecond range on a 2.4GHz ??

--HPS