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Add a lock contention measuring tool to the list of desirable features

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without an owner.  To measure the effectiveness of our locking strategy,
optimality of mutex pools, etc, we'll need a tool that tells us what
locks are the "hottest", as well as other useful statistics such as
average latency to wait on a lock, perhaps throughput on the lock, etc.
This task will require some relatively in-depth analysis of what we need
to know, not just hacking, but should prove interesting and highly
valuable.
This commit is contained in:
Robert Watson 2002-02-25 19:47:05 +00:00
parent 399b55743d
commit 0cca4ba83c
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/www/; revision=12293
1 changed files with 10 additions and 1 deletions
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11
en/smp/index.sgml
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@ -1,6 +1,6 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" [
<!ENTITY base CDATA "..">
<!ENTITY date "$FreeBSD: www/en/smp/index.sgml,v 1.20 2002/02/25 19:36:43 rwatson Exp $">
<!ENTITY date "$FreeBSD: www/en/smp/index.sgml,v 1.21 2002/02/25 19:39:49 rwatson Exp $">
<!ENTITY title "FreeBSD SMP Project">
<!ENTITY email 'freebsd-smp'>
<!ENTITY % includes SYSTEM "../includes.sgml"> %includes;
@ -885,6 +885,15 @@
<td> &status.new; </td>
</tr>
<tr>
<td> Lock contention measurement tool to measure heat of various
locks, including Giant, and permit more directed performance and
locking strategy optimization. </td>
<td> &nbsp; </td>
<td> 25 February 2002 </td>
<td> &status.new; </td>
</tr>
<!--
<tr>
<td> </td>