From d1e89f8df4be7197fdab36a3e1662183a7dfe6ae Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Thu, 25 Jan 2018 19:05:50 +0100
Subject: erts: Add system_flags(erts_alloc,"+M?sbct *")

to change sbct limit in runtime for chosen allocator type.

With great power comes great responsibility.
---
 erts/doc/src/erlang.xml | 37 +++++++++++++++++++++++++++----------
 1 file changed, 27 insertions(+), 10 deletions(-)

(limited to 'erts/doc/src/erlang.xml')

diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 24a091073d..5f3652eeb3 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -6707,6 +6707,23 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="4"/>
+      <fsummary>Set system flag for erts_alloc.</fsummary>
+      <desc>
+        <p>Sets system flags for
+	<seealso marker="erts:erts_alloc"><c>erts_alloc(3)</c></seealso>.
+        <c><anno>Alloc</anno></c> is the allocator to affect, for example
+	<c>binary_alloc</c>. <c><anno>F</anno></c> is the flag to change and
+	<c><anno>V</anno></c> is the new value.</p>
+	<p>Only a subset of all <c>erts_alloc</c> flags can be changed
+	at run time. This subset is currently only the flag
+	<seealso marker="erts:erts_alloc#M_sbct"><c>sbct</c></seealso>.</p>
+        <p>Returns <c>ok</c> if the flag was set or <c>notsup</c> if not
+	supported by <c>erts_alloc</c>.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="system_flag" arity="2" clause_i="5"/>
       <fsummary>Set system flag fullsweep_after.</fsummary>
       <desc>
         <p>Sets system flag <c>fullsweep_after</c>.
@@ -6725,7 +6742,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="5"/>
+      <name name="system_flag" arity="2" clause_i="6"/>
       <fsummary>Set system flag microstate_accounting.</fsummary>
       <desc>
         <p><marker id="system_flag_microstate_accounting"></marker>
@@ -6738,7 +6755,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="6"/>
+      <name name="system_flag" arity="2" clause_i="7"/>
       <fsummary>Set system flag min_heap_size.</fsummary>
       <desc>
         <p>Sets the default minimum heap size for processes. The size
@@ -6753,7 +6770,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="7"/>
+      <name name="system_flag" arity="2" clause_i="8"/>
       <fsummary>Set system flag min_bin_vheap_size.</fsummary>
       <desc>
         <p>Sets the default minimum binary virtual heap size for
@@ -6770,7 +6787,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="8"/>
+      <name name="system_flag" arity="2" clause_i="9"/>
       <fsummary>Set system flag max_heap_size.</fsummary>
       <type name="max_heap_size"/>
       <desc>
@@ -6788,7 +6805,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="9"/>
+      <name name="system_flag" arity="2" clause_i="10"/>
       <fsummary>Set system flag multi_scheduling.</fsummary>
       <desc>
         <p><marker id="system_flag_multi_scheduling"></marker>
@@ -6843,7 +6860,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="10"/>
+      <name name="system_flag" arity="2" clause_i="11"/>
       <fsummary>Set system flag scheduler_bind_type.</fsummary>
       <type name="scheduler_bind_type"/>
       <desc>
@@ -6969,7 +6986,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="11"/>
+      <name name="system_flag" arity="2" clause_i="12"/>
       <fsummary>Set system flag scheduler_wall_time.</fsummary>
       <desc>
         <p><marker id="system_flag_scheduler_wall_time"></marker>
@@ -6981,7 +6998,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="12"/>
+      <name name="system_flag" arity="2" clause_i="13"/>
       <fsummary>Set system flag schedulers_online.</fsummary>
       <desc>
         <p><marker id="system_flag_schedulers_online"></marker>
@@ -7009,7 +7026,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="13"/>
+      <name name="system_flag" arity="2" clause_i="14"/>
       <fsummary>Set system flag trace_control_word.</fsummary>
       <desc>
         <p>Sets the value of the node trace control word to
@@ -7023,7 +7040,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="14"/>
+      <name name="system_flag" arity="2" clause_i="15"/>
       <fsummary>Finalize the time offset.</fsummary>
       <desc>
         <p><marker id="system_flag_time_offset"></marker>
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