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Re: CLX Speed: Pretty poor

To: Brad.Myers@A.GP.CS.CMU.EDU
Subject: Re: CLX Speed: Pretty poor
From: Bill.Chiles@WB1.CS.CMU.EDU
Date: Tue, 13 Jun 89 14:04:54 EDT
Cc: cl-windows@sail.stanford.edu, bam@A.GP.CS.CMU.EDU, koz@B.GP.CS.CMU.EDU
In-reply-to: Your message of Tue, 13 Jun 89 12:21:03 -0400. <1989.6.13.16.2.17.Brad.Myers@A.GP.CS.CMU.EDU>

One obvious problem is that the C code is forcing output while the Lisp
code is finishing output.  In the C code you are just dumping the buffered
requests on the pipe to the server, while the Lisp code is doing this and
then waiting for the server to come back and say "Okay".  This means the
server must run and return to Lisp, switching contexts twice.  On an RT
running Mach, this is pretty blecherous.

Bill

References:
- CLX Speed: Pretty poor
  - From: Brad.Myers@a.gp.cs.cmu.edu

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