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New release notes: dirhash, new ddb(4) commands, and SSE.

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Dima Dorfman 2001-07-15 12:27:21 +00:00
parent 8d43ce09fc
commit 797c1bc2a1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=79760
2 changed files with 34 additions and 0 deletions
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17
release/doc/en_US.ISO8859-1/relnotes/article.sgml
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@ -206,6 +206,23 @@
variable; &man.dmesg.8; no longer needs to be SGID
<groupname>kmem</groupname>.</para>
<para>A simple hash-based lookup optimization for large directories
called <literal>dirhash</literal> has been added. Conditional on the
<literal>UFS_DIRHASH</literal> kernel option, it improves the speed of
operations on very large directories at the expense of some
memory.</para>
<para>Two new &man.ddb.4; commands, <command>hwatch</command> and
<command>dhwatch</command>, have been introduced. Analogous to
<command>watch</command> and <command>dwatch</command>, they install
hardware watchpoints (as opposed to software watchpoints) if supported
by the architecture.</para>
<para arch="i386">Support for Streaming <acronym>SIMD</acronym>
Extensions (<acronym>SSE</acronym>) has been introduced. The
<literal>CPU_ENABLE_SSE</literal> kernel option controls whether
support is compiled into the kernel.</para>
<sect3>
<title>Processor/Motherboard Support</title>

17
release/doc/en_US.ISO8859-1/relnotes/common/new.sgml
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@ -206,6 +206,23 @@
variable; &man.dmesg.8; no longer needs to be SGID
<groupname>kmem</groupname>.</para>
<para>A simple hash-based lookup optimization for large directories
called <literal>dirhash</literal> has been added. Conditional on the
<literal>UFS_DIRHASH</literal> kernel option, it improves the speed of
operations on very large directories at the expense of some
memory.</para>
<para>Two new &man.ddb.4; commands, <command>hwatch</command> and
<command>dhwatch</command>, have been introduced. Analogous to
<command>watch</command> and <command>dwatch</command>, they install
hardware watchpoints (as opposed to software watchpoints) if supported
by the architecture.</para>
<para arch="i386">Support for Streaming <acronym>SIMD</acronym>
Extensions (<acronym>SSE</acronym>) has been introduced. The
<literal>CPU_ENABLE_SSE</literal> kernel option controls whether
support is compiled into the kernel.</para>
<sect3>
<title>Processor/Motherboard Support</title>