Date: Thu, 20 Feb 1997 03:51:54 -0800 (PST) From: Bruce Evans <bde> To: CVS-committers, cvs-all, cvs-sys Subject: cvs commit: src/sys/kern sys_generic.c Message-ID: <199702201151.DAA07900@freefall.freebsd.org>
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bde 97/02/20 03:51:53
Modified: sys/kern sys_generic.c
Log:
Improved select():
- avoid malloc() if the number of fds is small.
- pack the bits better so that `small' is quite large.
- don't waste time generating zero bits for null fd_set pointers or
scanning these bits.
Possibly improved select():
- free malloc()ed storage before returning. This is simpler and I
think huge select()s aren't worth optimizing since they are rare,
relative gain would be small and there would be tiny costs for all
selects().
Reviewed by: ache (first version by him too)
Revision Changes Path
1.22 +51 -36 src/sys/kern/sys_generic.c
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