Re: [9fans] v8 shell

["boyd, rounin" <boyd@insultant.net>]

> actually, you can get away with named pipes, at moderate cost.
> byron's rc could do this.

yeah, that sounds right.

now that reminds me of some benchmark run against named
pipes and message queues.  it got dumped on my desk and
i was asked to comment.

now pipes had an almost 1:1 real to cpu time correlation and
were a bit slower.  message queues were another story; they
used less cpu time but the real time was _more_.  this had me
puzzled.

seems someone at USG had forgotten about sleep and wakeup
and had a timeout to kick the queues into action, greatly reducing
the cpu time but greatly _increasing_ the real time.