svn commit: r39253 - head/en_US.ISO8859-1/books/faq
Eitan Adler
eadler at FreeBSD.org
Sun Jul 22 22:19:48 UTC 2012
Author: eadler (src,ports committer)
Date: Sun Jul 22 22:19:48 2012
New Revision: 39253
URL: http://svn.freebsd.org/changeset/doc/39253
Log:
Remove bogus information about SMP processors
Approved by: wblock
Modified:
head/en_US.ISO8859-1/books/faq/book.sgml
Modified: head/en_US.ISO8859-1/books/faq/book.sgml
==============================================================================
--- head/en_US.ISO8859-1/books/faq/book.sgml Sun Jul 22 22:19:46 2012 (r39252)
+++ head/en_US.ISO8859-1/books/faq/book.sgml Sun Jul 22 22:19:48 2012 (r39253)
@@ -2262,19 +2262,9 @@
support on Intel CPUs that support this feature. A kernel
with the <literal>options SMP</literal> feature enabled
will automatically detect the additional logical
- processors. The default &os; scheduler treats the logical
- processors the same as additional physical processors; in
- other words, no attempt is made to optimize scheduling
- decisions given the shared resources between logical
- processors within the same CPU. Because this naive
- scheduling can result in suboptimal performance, under
- certain circumstances it may be useful to disable the
- logical processors with the
- <varname>machdep.hlt_logical_cpus</varname> sysctl
- variable. It is also possible to halt any CPU in the idle
- loop with the <varname>machdep.hlt_cpus</varname> sysctl
- variable. The &man.smp.4; manual page has more
- details.</para>
+ processors.</para>
+
+ <para>&man.smp.4; has more details.</para>
</answer>
</qandaentry>
</qandaset>
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