A variety of updates to the SMP status page:
Reference BSDCon'03 papers: Jeffrey Hsu's "Reasoning about SMP in FreeBSD" Jeff Roberson's "ULE: A Modern Scheduler for FreeBSD" Update WIP timestamps due to ongoing progress: Newbus VM Buffer Cache VFS Socket locking IPv4, IPv6 Network stack infrastructure UNIX domain sockets Socket infrastructure Move to done status: Pipe IPC (VM optimizations now done) Mutex profiling Pipe VM optimizations Raw IP DIVERT sockets IPFW2 DUMMYNET Ethernet bridge IP fragment queues Routing entries FAST_IPSEC Add new WIP: Peter's device driver API changes for fast interrupt handling
This commit is contained in:
Robert Watson
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svn2git
2020-12-08 03:00:23 +00:00
svn path=/www/; revision=18325
1 changed files with 128 additions and 59 deletions
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" [
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<!ENTITY base CDATA "..">
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<!ENTITY date "$FreeBSD: www/en/smp/index.sgml,v 1.109 2003/07/16 20:12:26 truckman Exp $">
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<!ENTITY date "$FreeBSD: www/en/smp/index.sgml,v 1.110 2003/10/02 19:59:04 ceri Exp $">
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<!ENTITY title "FreeBSD SMP Project">
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<!ENTITY email 'freebsd-smp'>
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<!ENTITY % includes SYSTEM "../includes.sgml"> %includes;
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@ -112,9 +112,26 @@
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<a href="http://apollo.backplane.com/FreeBSDSmp/">web page</a>
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that documents the work he is doing on the SMP project.</p></li>
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<li><p>
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<li>
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<p>
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<a href="http://www.usenix.org/events/bsdcon02/full_papers/baldwin/baldwin_html/index.html">
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"Locking in the Multithreaded FreeBSD Kernel" USENIX paper by &a.jhb;</a>.</p></li>
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"Locking in the Multithreaded FreeBSD Kernel" USENIX paper by &a.jhb;</a>.
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</p>
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</li>
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<li>
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<p>
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<a href="http://www.usenix.org/publications/library/proceedings/bsdcon03/tech/hsu.html">
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"Reasoning about SMP in FreeBSD" BSDCon'03 paper by &a.hsu;</a>.
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</p>
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</li>
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<li>
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<p>
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<a href="http://www.usenix.org/publications/library/proceedings/bsdcon03/tech/roberson.html">
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"ULE: A Modern Scheduler for FreeBSD" BSDCon'03 paper by &a.jeff;</a>.
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</p>
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</li>
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</ul>
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<a name="subsystems"></a>
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@ -134,28 +151,28 @@
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<tr>
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<td> Newbus </td>
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<td> &status.wip; </td>
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<td> 5 July 2003 </td>
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<td> 5 October 2003 </td>
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<td> &a.imp;</td>
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</tr>
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<tr>
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<td> VM </td>
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<td> &status.wip; </td>
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<td> 5 February 2003 </td>
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<td> 4 October 2003 </td>
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<td> &a.alc;</td>
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</tr>
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<tr>
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<td> Buffer cache </td>
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<td> &status.wip; </td>
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<td> 8 February 2003 </td>
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<td> 4 October 2003 </td>
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<td> &a.jeff;, &a.phk; </td>
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</tr>
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<tr>
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<td> VFS </td>
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<td> &status.wip; </td>
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<td> </td>
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<td> 4 October 2003</td>
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<td> &a.jeff; </td>
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</tr>
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@ -196,30 +213,30 @@
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<tr>
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<td> Pipe IPC </td>
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<td> &status.done; (except for VM optimizations) </td>
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<td> 5 February 2003 </td>
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<td> &status.done; </td>
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<td> 4 October 2003 </td>
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<td> &a.alfred; </td>
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</tr>
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<tr>
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<td> Socket structures and system calls </td>
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<td> &status.wip; </td>
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<td> </td>
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<td> &a.tanimura;, &a.hsu; </td>
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<td> 4 October 2003 </td>
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<td> &a.tanimura;, &a.hsu;, &a.sam; </td>
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</tr>
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<tr>
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<td> IPv4, IPv6 </td>
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<td> &status.wip; </td>
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<td> 5 February 2003 </td>
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<td> &a.hsu;, &a.jennifer; </td>
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<td> 4 October 2003 </td>
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<td> &a.hsu;, &a.jennifer;, &a.sam;</td>
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</tr>
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<tr>
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<td> Network stack infrastructure </td>
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<td> &status.wip; </td>
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<td> 5 February 2003 </td>
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<td> &a.hsu; </td>
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<td> 4 October 2003 </td>
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<td> &a.hsu;, &a.sam; </td>
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</tr>
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</table>
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@ -1065,6 +1082,21 @@
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Create mutex profiling tool for the kernel so as to measure
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contention and behavior of kernel mutexes. </td>
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<td> &a.eivind;, &a.des; </td>
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<td> 31 March 2002 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock pipe implementation: VM optimizations. </td>
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<td> </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<!-- WIP -->
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<tr>
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@ -1152,14 +1184,6 @@
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Create mutex profiling tool for the kernel so as to measure
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contention and behavior of kernel mutexes. </td>
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<td> &a.eivind;, &a.des; </td>
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<td> 31 March 2002 </td>
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Lock sysctl hierarchy and access methods. </td>
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<td> &a.mini; </td>
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@ -1246,6 +1270,16 @@
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Modify device driver API to permit drivers to more easily
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split "in interrupt context" and "in interrupt thread"
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code so as to acknowledge interrupts faster. This will permit
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lower latency in interrupt handling. </td>
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<td> &a.peter; </td>
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<td> 4 October 2003 </td>
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<td> &status.wip; </td>
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</tr>
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<!-- Stalled -->
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<tr>
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@ -1392,13 +1426,6 @@
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<td> &status.new; </td>
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</tr>
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<tr>
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<td> Lock pipe implementation: VM optimizations. </td>
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<td> </td>
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<td> 27 February 2002 </td>
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<td> &status.new; </td>
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</tr>
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<tr>
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<td> Expand mutex profiling tool to also profile sx locks. </td>
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<td> &a.eivind;, &a.des; </td>
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@ -1537,43 +1564,94 @@
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<td> &status.done; </td>
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</tr>
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<!-- WIP -->
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<tr>
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<td> Lock routing entries. </td>
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<td> </td>
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<td> 29 January 2003 </td>
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Lock up raw IP. </td>
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<td> &a.hsu; </td>
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<td> 27 February 2003 </td>
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<td> &status.wip; </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock divert sockets. </td>
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<td> &a.hsu; </td>
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<td> 27 February 2003 </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock ipfw2. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock DUMMYNET. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock ethernet bridge. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock IP fragment queues. </td>
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<td> &a.rwatson; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock routing entries. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<tr>
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<td> Lock FAST_IPSEC. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.done; </td>
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</tr>
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<!-- WIP -->
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<tr>
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<td> Lock &unix; domain protocols. </td>
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<td> &a.hsu;, &a.sam </td>
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<td> 4 October 2003 </td>
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Lock up &unix; domain protocols. </td>
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<td> &a.hsu; </td>
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<td> 27 February 2003 </td>
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<td> Lock IPv6. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Lock up IPv6. </td>
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<td> </td>
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<td> 27 February 2003 </td>
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<td> Lock socket layer. </td>
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<td> &a.tanimura;, &a.sam </td>
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<td> 4 October 2003 </td>
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<td> &status.wip; </td>
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</tr>
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<tr>
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<td> Permit IP forwarding path to run Giant-free. </td>
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<td> &a.sam; </td>
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<td> 4 October 2003 </td>
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<td> &status.wip; </td>
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</tr>
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<!-- Not Started -->
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<tr>
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<td> Lock struct ifnet. </td>
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<td> </td>
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<td> &status.new; </td>
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</tr>
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<tr>
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<td> Lock down struct socket. </td>
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<td> &a.tanimura; </td>
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<td> 21 April 2002 </td>
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<td> &status.wip; </td>
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</tr>
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<!-- Not Started -->
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<tr>
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<td> Reduce contention upon locking a socket buffer by replacing
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tsleep() and wakeup() with a condvar. </td>
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