Date: Sun, 7 Jul 1996 22:31:02 +1000 From: Bruce Evans <bde@zeta.org.au> To: grog@lemis.de, hasty@rah.star-gate.com Cc: hackers@freebsd.org Subject: Re: gcc lies? Message-ID: <199607071231.WAA22327@godzilla.zeta.org.au>
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>> Dumb question , is gcc-1.42 a lot faster than gcc-2.x? >Good question. The answer is 'yes', at least to go by what I've just >tried. I compiled cccp.c (the GNU preprocessor) with both compilers >on a P133 with BSD/OS 2.1. cc (1.42) took about 5.4 seconds, gcc >(2.7.2) took about 14 seconds. gcc seems to be particularly slow at compiling cccp.c. Here it takes 16 seconds on a P133. It takes only 2.34 seconds with my compiler (It doesn't actually compile with my compiler, because of non-C (long long) in the standard headers). The difference for compiling with -S (and fixed headers) is much larger: bcc -S: 0.76 real 0.67 user 0.08 sys cc -S: 7.16 real 6.96 user 0.18 sys cc -O2 -S: 14.94 real 14.73 user 0.11 sys Bruce
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