svn commit: r214409 - head/sys/kern
Andriy Gapon
avg at freebsd.org
Wed Oct 27 16:22:41 UTC 2010
[patch attachment was lost]
on 27/10/2010 19:07 Garrett Cooper said the following:
> How about this patch? I implemented this as a readonly tunable and
I don't think that it's correct to call it a tunable or use CTLFLAG_RDTUN.
As I understand it is a read-only sysctl.
> sysconf tunable, because (AFAIK) the value that is being tested
> shouldn't change during runtime after the system has been booted up,
> and figuring that the value wasn't going to change it was better to
> lose 4/8 bytes on the kernel stack instead of having to recompute the
> value every time in a function call, with the associated lost heap /
> stack memory in the process, as the assumption is that this libcall
> was going to be called frequently by some programs.
> Thanks!
--
Andriy Gapon
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