ponderous 'make world' times post GCC 3.3...

Harti Brandt brandt at fokus.fraunhofer.de
Wed Aug 13 09:12:23 PDT 2003

On Wed, 13 Aug 2003, Steve Ames wrote:

SA>----- Original Message -----
SA>From: "Harti Brandt" <brandt at fokus.fraunhofer.de>
SA>> I have actually two machines and two kernels: one machine runs with
SA>> WITNESS and DIAGNOSTICS and the other without that. On both machines
SA>> the current kernel is three times slower than the old kernel. Of course
SA>> the debugging kernels are even slower than the non-debugging ones. But,
SA>> the three times ratio between old and new kernels is the same on both
SA>> machines.
SA>Ah. Well that blows my theory :) However... in January my system took around
SA>4 hours to do 'make world' and it still does with today's code (if I don't
SA>debug options turned on). So I'm not sure there is a global 3x increase.

Well, you're the 2nd one who reports that nothing has changed. Several
people however report, that they see the 3x increase. And I see it myself,
no matter how often I look at this. Today I tried to build the vinum

gcc-3.3.1	yesterday's kernel	132 + 85 + 20
gcc-3.2.2	yesterday's kernel	131 + 85 + 22
gcc-3.2.2	kernel from June 1st	 52 + 27 +  7

Exactly the same config and the same world (except for gcc).

This is an Ultra10. Perhaps it depends on the sparc model?

harti brandt,
brandt at fokus.fraunhofer.de, harti at freebsd.org

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