From 90351e1167a3bf21c2378306b68f560601e8415f Mon Sep 17 00:00:00 2001
From: Rickard Green <rickard@erlang.org>
Date: Tue, 11 Jun 2013 17:30:47 +0200
Subject: erts: Add the +sfwi system flag

+sfwi Interval
    Set scheduler forced wakeup interval. All run queues will be scanned
    each Interval milliseconds. While there are sleeping schedulers in
    the system, one scheduler will be woken for each non-empty run queue
    found. An Interval of zero disables this feature, which also is the
    default.

    This feature has been introduced as a temporary workaround for lengthy
    executing native code, and native code that do not bump reductions
    properly in OTP. When these bugs have be fixed the +sfwi flag will
    be removed.

Conflicts:

	erts/doc/src/erl.xml
	erts/etc/common/erlexec.c
---
 erts/doc/src/erl.xml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'erts/doc')

diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index f931445a3e..12cdb4b628 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -907,6 +907,20 @@
 	    <p>For more information, see
 	    <seealso marker="erlang#system_info_cpu_topology">erlang:system_info(cpu_topology)</seealso>.</p>
           </item>
+          <tag><marker id="+sfwi"><c>+sfwi Interval</c></marker></tag>
+          <item>
+            <p>Set scheduler forced wakeup interval. All run queues will
+	    be scanned each <c>Interval</c> milliseconds. While there are
+	    sleeping schedulers in the system, one scheduler will be woken
+	    for each non-empty run queue found. An <c>Interval</c> of zero
+	    disables this feature, which also is the default.
+	    </p>
+	    <p>This feature has been introduced as a temporary workaround
+	    for lengthy executing native code, and native code that do not
+	    bump reductions properly in OTP. When these bugs have be fixed
+	    the <c>+sfwi</c> flag will be removed.
+	    </p>
+	  </item>
 	  <tag><marker id="+sws"><c>+sws default|legacy|proposal</c></marker></tag>
 	  <item>
              <p>Set scheduler wakeup strategy. Default is <c>legacy</c> (has been
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