cvs commit: src/sys/kern kern_poll.c
phk at phk.freebsd.dk
Tue Sep 6 10:50:28 PDT 2005
In message <431DCEFB.9030005 at samsco.org>, Scott Long writes:
>> For the case of storage, you actually have a better model since all
>> transactions are initiated from the host (as opposed to packet
>> arrivals). This gives an easy metric for a dynamic polling threshold --
>> if you have a deep queue of outstanding requests and one completes, you
>> should poll a little more than normal.
>Except for target mode.
It could be argued that target mode is really networking rather
than storage :-)
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
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