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RE: Fibonacci and performance

To: aph at cambridge dot redhat dot com
Subject: RE: Fibonacci and performance
From: Tony Kimball <alk at pobox dot com>
Date: Fri, 27 Apr 2001 15:33:30 -0500 (CDT)
Cc: green at redhat dot com, per at bothner dot com, tromey at redhat dot com, java at gcc dot gnu dot org
References: <m2g0eupacn.fsf@kelso.bothner.com><NEBBKJDPKLNNENPPIHCPGEEKLCAA.green@redhat.com><15081.48169.108060.97690@cuddles.cambridge.redhat.com>
Reply-To: alk at pobox dot com

Quoth Andrew Haley on Friday, 27 April:

: I was also thinking of some evil way to overwrite the call to
: JvInitClass the first time it was used...  :-)

That's how we handled such things in the CM5 (sparc) C* compiler, but
there are all manner of bothersome problems with this for gcc.  You've
got to invalidate the i-cache lines manually, for example, on modern
sparcs.  I'm guessing there are other architectures where executable
pages are normally mapped read-only.

References:
- Re: Fibonacci and performance
  - From: Per Bothner
- RE: Fibonacci and performance
  - From: Anthony Green
- RE: Fibonacci and performance
  - From: Andrew Haley

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