From: "rob pike" <rob@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] RDMA: DMA over TCP/IP at IETF
Date: Wed, 12 Dec 2001 08:46:30 -0500 [thread overview]
Message-ID: <20011212134632.4659619A0B@mail.cse.psu.edu> (raw)
> IIRC the 'Multiprocessor sleep/wakeup' paper refers to a problem
> which was discovered when a new fast device was added to Plan 9.
If I recall correctly, "IIRC" is a shorthand for "if I recall correctly",
and either you don't or I don't. The problem the paper addressed
was a general one introduced by, er, doing sleep/wakeup on a
multiprocessor. The paper is also incomplete; when notes were
added to the system shortly after, it took years to get the code
to its current approximation of correctness. The general approach
of using a tool to help was not abandoned, however; the system
just kept changing under the model.
Nowadays, Holzmann's stuff is applied directly to the kernel
sources, which helps a lot.
-rob
next reply other threads:[~2001-12-12 13:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-12 13:46 rob pike [this message]
2001-12-12 17:30 ` Boyd Roberts
-- strict thread matches above, loose matches on Subject: below --
2001-12-11 13:17 George Michaelson
2001-12-11 10:08 ` Douglas A. Gwyn
2001-12-11 10:57 ` Boyd Roberts
2001-12-12 9:47 ` Douglas A. Gwyn
2001-12-12 11:11 ` Boyd Roberts
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