svn commit: r48060 - head/en_US.ISO8859-1/htdocs/news/status

Benjamin Kaduk bjk at FreeBSD.org
Mon Jan 18 22:54:47 UTC 2016


Author: bjk
Date: Mon Jan 18 22:54:45 2016
New Revision: 48060
URL: https://svnweb.freebsd.org/changeset/doc/48060

Log:
  Add entry on CAM I/O schedule from imp

Modified:
  head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml

Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml
==============================================================================
--- head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml	Mon Jan 18 22:48:15 2016	(r48059)
+++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml	Mon Jan 18 22:54:45 2016	(r48060)
@@ -4004,4 +4004,45 @@
       </task>
     </help>
   </project>
+
+  <project cat='proj'>
+    <title>CAM I/O Scheduler</title>
+
+    <contact>
+      <person>
+	<name>
+	  <given>Warner</given>
+	  <common>Losh</common>
+	</name>
+	<email>imp at FreeBSD.org</email>
+      </person>
+    </contact>
+
+    <links>
+      <url href="https://people.FreeBSD.org/~imp/bsdcan2015/iosched-v3.pdf">BSDCan Paper</url>
+      <url href="https://reviews.FreeBSD.org/D4609">Phabricator Review</url>
+    </links>
+
+    <body>
+      <p>Reviews have begun on the CAM I/O scheduler that I wrote
+	for Netflix.  It is anticipated that this process will be done in
+	time for the &os; 11 branch.</p>
+
+      <p>Details about this work can be found in the linked BSDcan
+	paper from last year.</p>
+
+      <p>Briefly, the scheduler allows one to differentiate I/O
+	types and limit I/O based on the type and characteristics of the
+	I/Os (including the latency of recent requests relative to
+	historical averages).  This is most useful when tuning system
+	loads to SSD performance.  Both a simple default scheduler, the
+	same that we use today in &os;, as well as a scheduler that can be
+	well-tuned for system loads related to video streaming will be
+	included.</p>
+    </body>
+
+    <sponsor>
+      Netflix, Inc
+    </sponsor>
+  </project>
 </report>


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