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- Newsgroups: comp.unix.aix
- Path: sparky!uunet!snorkelwacker.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!jfc
- From: jfc@athena.mit.edu (John F Carr)
- Subject: Re: Benchmark results: xlc vs gcc optimization quality
- Message-ID: <1992Aug28.021609.13243@athena.mit.edu>
- Sender: news@athena.mit.edu (News system)
- Nntp-Posting-Host: achates.mit.edu
- Organization: Massachusetts Institute of Technology
- References: <16174@pitt.UUCP> <oebFKM70Bwx3A1859x@transarc.com>
- Date: Fri, 28 Aug 1992 02:16:09 GMT
- Lines: 13
-
- In article <oebFKM70Bwx3A1859x@transarc.com> Barry_Wolman@transarc.com writes:
-
- >Has anyone else found examples of code that cause optimized xlc
- >compilations to take >10 times as long as unoptimized compilations.
-
- I have found -Q (inline functions) to cause very long compilation times in
- some cases; low memory systems (< 32 MB) may page a lot during optimized
- compliation; there are some rare, very complicated functions that take a
- long time to compile.
-
-
- --
- John Carr (jfc@athena.mit.edu)
-