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  1. Return-Path: <icon-group-sender>
  2. Received: from kingfisher.CS.Arizona.EDU (kingfisher.CS.Arizona.EDU [192.12.69.239])
  3.     by baskerville.CS.Arizona.EDU (8.9.1a/8.9.1) with SMTP id QAA24561
  4.     for <icon-group-addresses@baskerville.CS.Arizona.EDU>; Fri, 11 Sep 1998 16:59:38 -0700 (MST)
  5. Received: by kingfisher.CS.Arizona.EDU (5.65v4.0/1.1.8.2/08Nov94-0446PM)
  6.     id AA00225; Fri, 11 Sep 1998 16:59:11 -0700
  7. Date: Fri, 11 Sep 1998 17:25:18 -0500
  8. Message-Id: <199809112225.RAA07906@segfault.cs.utsa.edu>
  9. From: Clinton Jeffery <jeffery@segfault.cs.utsa.edu>
  10. To: cwills@bix.com
  11. Cc: icon-group@optima.CS.Arizona.EDU
  12. In-Reply-To: <9809102206.memo.65326@BIX.com> (cwills@bix.com)
  13. Subject: Re: Context Switching
  14. Reply-To: jeffery@cs.utsa.edu
  15. Errors-To: icon-group-errors@optima.CS.Arizona.EDU
  16. Status: RO
  17.  
  18.  
  19. Cheyenne Wills and Todd Proebsting recently pointed out (or confirmed)
  20. that co-expressions can relatively easily be built on top of threads.
  21.  
  22. Has anyone implemented and compared the performance of co-expressions using
  23. a modern threads package to Icon's assembler context switch on the same
  24. platform?  It would be interesting to know whether we might just switch over
  25. to threads wholesale, or whether they still have a significant performance
  26. cost because the synchronization and concurrency of threads are "overkill"
  27. for co-expressions.
  28.  
  29. Clint Jeffery, jeffery@cs.utsa.edu
  30. Division of Computer Science, The University of Texas at San Antonio
  31. Research http://www.cs.utsa.edu/research/plss.html
  32.