svn commit: r48599 - head/en_US.ISO8859-1/htdocs/news/status

Tue Apr 12 23:00:30 UTC 2016

Author: wblock
Date: Tue Apr 12 23:00:28 2016
New Revision: 48599
URL: https://svnweb.freebsd.org/changeset/doc/48599

Log:
  Add RCTL disk I/O limits report from Edward Tomasz Napierała
  <trasz at FreeBSD.org>.

Modified:
  head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml

Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml
==============================================================================

--- head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml	Tue Apr 12 22:56:05 2016	(r48598)
+++ head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml	Tue Apr 12 23:00:28 2016	(r48599)
@@ -1687,4 +1687,57 @@
 
     <sponsor>The FreeBSD Foundation</sponsor>
   </project>
+
+  <project cat='proj'>
+    <title>RCTL disk IO Limits</title>
+
+    <contact>
+      <person>
+	<name>
+	  <given>Edward Tomasz</given>
+	  <common>Napierała</common>
+	</name>
+	<email>trasz at FreeBSD.org</email>
+      </person>
+    </contact>
+
+    <links></links>
+
+    <body>
+      <p>An important missing piece of the RCTL resource limits
+	framework was the ability to limit file system throughput.
+	This project aims to fill that hole by making it possible to
+	add RCTL rules for read bytes per second (BPS), write BPS,
+	read I/O operations per second (IOPS), and write IOPS, and
+	adding a new throttling mechanism, to slow down offending
+	processes when a limit gets hit.</p>
+
+      <p>The code has been committed and will ship with &os;
+	11.0-RELEASE.</p>
+    </body>
+
+    <help>
+      <task>
+	<p>Additional testing</p>
+      </task>
+
+      <task>
+	<p>Simplify locking, getting rid of rctl_lock altogether</p>
+      </task>
+
+      <task>
+	<p>Improve statistics gathering by make it possible for
+	  <tt>rctl -u</tt> to retrieve usage counters at a fixed point
+	  of time</p>
+      </task>
+
+      <task>
+	<p>Use the new throttling mechanism for %CPU limits</p>
+      </task>
+    </help>
+
+    <sponsor>
+      The FreeBSD Foundation
+    </sponsor>
+  </project>
 </report>
