From: tfb@tfeb.org (Tim Bradshaw)
Subject: [TUHS] Early Unix function calls: expensive?
Date: Sun, 3 Jan 2016 23:53:00 +0000 [thread overview]
Message-ID: <76BC99D5-A8C4-4F8B-8D7D-C621CBD18238@tfeb.org> (raw)
In-Reply-To: <20160103233543.GA10102@minnie.tuhs.org>
> On 3 Jan 2016, at 23:35, Warren Toomey <wkt at tuhs.org> wrote:
>
> Does anybodu have a measure of the expense of function calls under Unix
> on either platform?
>
I don't have the reference to hand, but one of the things Lisp implementations (probably Franz Lisp in particular) did on the VAX was not to use CALLS: they could do this because they didn't need to interoperate with C except at known points (where they would use the C calling conventions). This change made a really significant difference to function call performance and meant that on call-heavy code Lisp was often very competitive with C.
I can look up the reference (or, really, ask someone who remembers).
The VAX architecture and its performance horrors must have killed DEC, I guess.
next prev parent reply other threads:[~2016-01-03 23:53 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-03 23:35 Warren Toomey
2016-01-03 23:53 ` Tim Bradshaw [this message]
2016-01-04 0:01 ` John Cowan
2016-01-04 4:40 ` Armando Stettner
2016-01-04 8:52 ` Tim Bradshaw
2016-01-04 17:29 ` Larry McVoy
2016-01-04 13:50 ` Clem Cole
2016-01-05 2:00 ` Ronald Natalie
2016-01-05 15:13 ` Clem Cole
2016-01-05 16:46 ` John Cowan
2016-01-05 17:33 ` Diomidis Spinellis
2016-01-05 17:42 ` Clem Cole
2016-01-05 17:28 ` Ronald Natalie
2016-01-05 17:43 ` Clem Cole
2016-01-05 17:46 ` Ronald Natalie
2016-01-05 18:03 ` Warner Losh
2016-01-05 18:24 ` Ronald Natalie
2016-01-05 20:26 ` scj
2016-01-05 20:49 ` John Cowan
2016-01-05 23:24 ` Dave Horsfall
2016-01-05 23:55 ` Ronald Natalie
2016-01-04 0:00 ` John Cowan
2016-01-04 0:42 ` scj
2016-01-04 11:35 ` Tony Finch
[not found] <mailman.3.1451865187.15972.tuhs@minnie.tuhs.org>
2016-01-04 1:08 ` Johnny Billquist
2016-01-04 1:29 ` Larry McVoy
2016-01-04 1:31 Noel Chiappa
2016-01-04 2:24 ` scj
2016-01-04 4:24 ` Larry McVoy
2016-01-04 1:59 Norman Wilson
2016-01-04 15:09 ` John Cowan
2016-01-04 2:21 Clem Cole
2016-01-04 12:53 Noel Chiappa
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