From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lyndon Nerenberg <lyndon@orthanc.ca>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Date: Thu, 11 Oct 2018 13:43:00 -0700
Message-Id: <7aa20c07322147e6@orthanc.ca>
Cc: Lyndon Nerenberg <lyndon@orthanc.ca>
Subject: Re: [9fans] zero copy & 9p (was Re: PDP11 (Was: Re: what heavy
	negativity!)
Topicbox-Message-UUID: ed07faa6-ead9-11e9-9d60-3106f5b1d025

Another case to ponder ...   We're handling the incoming I/Q data
stream, but need to fan that out to many downstream consumers.  If
we already read the data into a page, then flip it to the first
consumer, is there a benefit to adding a reference counter to that
read-only page and leaving the page live until the counter expires?

Hiro clamours for benchmarks.  I agree.  Some basic searches I've
done don't show anyone trying this out with P9 (and publishing
their results).  Anybody have hints/references to prior work?

--lyndon