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-rw-r--r--erts/doc/src/absform.xml3
-rw-r--r--erts/doc/src/erl.xml13
-rw-r--r--erts/doc/src/erl_driver.xml19
-rw-r--r--[-rwxr-xr-x]erts/doc/src/erl_ext_fig.gifbin3834 -> 3834 bytes
-rw-r--r--erts/doc/src/erlang.xml18
-rw-r--r--erts/doc/src/erts_alloc.xml58
-rw-r--r--erts/doc/src/make.dep32
7 files changed, 60 insertions, 83 deletions
diff --git a/erts/doc/src/absform.xml b/erts/doc/src/absform.xml
index 4c84412dd6..88e8b284fb 100644
--- a/erts/doc/src/absform.xml
+++ b/erts/doc/src/absform.xml
@@ -285,7 +285,8 @@
<item>If E is <c><![CDATA[fun Name / Arity]]></c>, then
Rep(E) = <c><![CDATA[{'fun',LINE,{function,Name,Arity}}]]></c>.</item>
<item>If E is <c><![CDATA[fun Module:Name/Arity]]></c>, then
- Rep(E) = <c><![CDATA[{'fun',LINE,{function,Module,Name,Arity}}]]></c>.</item>
+ Rep(E) = <c><![CDATA[{'fun',LINE,{function,Rep(Module),Rep(Name),Rep(Arity)}}]]></c>.
+ (Before the R15 release: Rep(E) = <c><![CDATA[{'fun',LINE,{function,Module,Name,Arity}}]]></c>.)</item>
<item>If E is <c><![CDATA[fun Fc_1 ; ... ; Fc_k end]]></c>
where each <c><![CDATA[Fc_i]]></c> is a function clause then Rep(E) =
<c><![CDATA[{'fun',LINE,{clauses,[Rep(Fc_1), ..., Rep(Fc_k)]}}]]></c>.</item>
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index 39c79a29df..d0a0ceaeba 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -745,6 +745,19 @@
<seealso marker="erlang#system_flag_scheduler_bind_type">erlang:system_flag(scheduler_bind_type, SchedulerBindType)</seealso>.
</p>
</item>
+ <tag><marker id="+scl"><c>+scl true|false</c></marker></tag>
+ <item>
+ <p>Enable or disable scheduler compaction of load. By default
+ scheduler compaction of load is enabled. When enabled, load
+ balancing will strive for a load distribution which causes
+ as many scheduler threads as possible to be fully loaded (i.e.,
+ not run out of work). This is accomplished by migrating load
+ (e.g. runnable processes) into a smaller set of schedulers
+ when schedulers frequently run out of work. When disabled,
+ the frequency with which schedulers run out of work will
+ not be taken into account by the load balancing logic.
+ </p>
+ </item>
<tag><marker id="+sct"><c>+sct CpuTopology</c></marker></tag>
<item>
<list type="bulleted">
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index 2fb03954b6..8e18dd6657 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -1638,12 +1638,19 @@ ERL_DRV_EXT2TERM char *buf, ErlDrvUInt len
<fsummary>Cancel an asynchronous call</fsummary>
<desc>
<marker id="driver_async_cancel"></marker>
- <p>This function cancels an asynchronous operation, by removing
- it from the queue. Only functions in the queue can be
- cancelled; if a function is executing, it's too late to
- cancel it. The <c>async_free</c> function is also called.</p>
- <p>The return value is 1 if the operation was removed from the
- queue, otherwise 0.</p>
+ <p>This function used to cancel a scheduled asynchronous operation,
+ if it was still in the queue. It returned 1 if it succeeded, and
+ 0 if it failed.</p>
+ <p>Since it could not guarantee success, it was more or less useless.
+ The user had to implement synchronization of cancellation anyway.
+ It also unnecessarily complicated the implementation. Therefore,
+ as of OTP-R15B <c>driver_async_cancel()</c> is deprecated, and
+ scheduled for removal in OTP-R16. It will currently always fail,
+ and return 0.</p>
+ <warning><p><c>driver_async_cancel()</c> is deferred and will
+ be removed in the OTP-R16 release.</p>
+ </warning>
+
</desc>
</func>
<func>
diff --git a/erts/doc/src/erl_ext_fig.gif b/erts/doc/src/erl_ext_fig.gif
index 14d6bbc871..14d6bbc871 100755..100644
--- a/erts/doc/src/erl_ext_fig.gif
+++ b/erts/doc/src/erl_ext_fig.gif
Binary files differ
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 45b66a4909..2ea144eb3f 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -802,8 +802,7 @@ false</pre>
<type>
<v>MonitorRef = reference()</v>
<v>OptionList = [Option]</v>
- <v>Option = flush</v>
- <v>Option = info</v>
+ <v>&nbsp;Option = flush | info</v>
</type>
<desc>
<p>The returned value is <c>true</c> unless <c>info</c> is part
@@ -1196,11 +1195,16 @@ true
</item>
<tag><c>{new_uniq, Uniq}</c></tag>
<item>
- <p><c>Uniq</c> (a binary) is a unique value for this fun.</p>
+ <p><c>Uniq</c> (a binary) is a unique value for this fun.
+ It is calculated from the compiled code for the entire module.</p>
</item>
<tag><c>{uniq, Uniq}</c></tag>
<item>
- <p><c>Uniq</c> (an integer) is a unique value for this fun.</p>
+ <p><c>Uniq</c> (an integer) is a unique value for this fun.
+ Starting in the R15 release, this integer is calculated from
+ the compiled code for the entire module. Before R15, this
+ integer was based on only the body of the fun.
+ </p>
</item>
</taglist>
</desc>
@@ -3715,12 +3719,6 @@ os_prompt%</pre>
<tag><c>process_flag(save_calls, N)</c></tag>
<item>
- <p>When there are runnable processes on priority <c>max</c>
- no processes on priority <c>low</c>, <c>normal</c>, or
- <c>high</c> will be selected for execution. As with the
- <c>high</c> priority, processes on lower priorities might
- execute in parallel with processes on priority <c>max</c>.
- </p>
<p><c>N</c> must be an integer in the interval 0..10000.
If <c>N</c> &gt; 0, call saving is made active for the
process, which means that information about the <c>N</c>
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml
index 86e1e5168a..3b5ee5391c 100644
--- a/erts/doc/src/erts_alloc.xml
+++ b/erts/doc/src/erts_alloc.xml
@@ -58,11 +58,8 @@
<item>Allocator used for memory blocks that are expected to be
long-lived, for example Erlang code.</item>
<tag><c>fix_alloc</c></tag>
- <item>A very fast allocator used for some fix-sized
- data. <c>fix_alloc</c> manages a set of memory pools from
- which memory blocks are handed out. <c>fix_alloc</c>
- allocates memory pools from <c>ll_alloc</c>. Memory pools
- that have been allocated are never deallocated.</item>
+ <item>A fast allocator used for some frequently used
+ fixed size data types.</item>
<tag><c>std_alloc</c></tag>
<item>Allocator used for most memory blocks not allocated via any of
the other allocators described above.</item>
@@ -83,7 +80,7 @@
where only small blocks are placed. Currently this allocator is
disabled by default.</item>
</taglist>
- <p><c>sys_alloc</c> and <c>fix_alloc</c> are always enabled and
+ <p><c>sys_alloc</c> is always enabled and
cannot be disabled. <c>mseg_alloc</c> is always enabled if it is
available and an allocator that uses it is enabled. All other
allocators can be <seealso marker="#M_e">enabled or disabled</seealso>.
@@ -104,7 +101,7 @@
<marker id="alloc_util"></marker>
<title>The alloc_util framework</title>
<p>Internally a framework called <c>alloc_util</c> is used for
- implementing allocators. <c>sys_alloc</c>, <c>fix_alloc</c>, and
+ implementing allocators. <c>sys_alloc</c>, and
<c>mseg_alloc</c> do not use this framework; hence, the
following does <em>not</em> apply to them.</p>
<p>An allocator manages multiple areas, called carriers, in which
@@ -212,6 +209,14 @@
This since it will only cause problems for other allocators.</p>
</item>
</taglist>
+ <p>Apart from the ordinary allocators described above a number of
+ pre-allocators are used for some specific data types. These
+ pre-allocators pre-allocate a fixed amount of memory for certain data
+ types when the run-time system starts. As long as there are available
+ pre-allocated memory, it will be used. When no pre-allocated memory is
+ available, memory will be allocated in ordinary allocators. These
+ pre-allocators are typically much faster than the ordinary allocators,
+ but can only satisfy a limited amount of requests.</p>
</section>
<note><p>
@@ -272,18 +277,6 @@
Max cached segments. The maximum number of memory segments
stored in the memory segment cache. Valid range is
0-30. Default value is 5.</item>
- <tag><marker id="MMcci"><c><![CDATA[+MMcci <time>]]></c></marker></tag>
- <item>
- Cache check interval (in milliseconds). The memory segment
- cache is checked for segments to destroy at an interval
- determined by this parameter. Default value is 1000.</item>
- </taglist>
- <p>The following flags are available for configuration of
- <c>fix_alloc</c>:</p>
- <taglist>
- <tag><marker id="MFe"><c>+MFe true</c></marker></tag>
- <item>
- Enable <c>fix_alloc</c>. Note: <c>fix_alloc</c> cannot be disabled.</item>
</taglist>
<p>The following flags are available for configuration of
<c>sys_alloc</c>:</p>
@@ -322,7 +315,7 @@
based on <c>alloc_util</c>. If <c>u</c> is used as subsystem
identifier (i.e., <c><![CDATA[<S> = u]]></c>) all allocators based on
<c>alloc_util</c> will be effected. If <c>B</c>, <c>D</c>, <c>E</c>,
- <c>H</c>, <c>L</c>, <c>R</c>, <c>S</c>, or <c>T</c> is used as
+ <c>F</c>, <c>H</c>, <c>L</c>, <c>R</c>, <c>S</c>, or <c>T</c> is used as
subsystem identifier, only the specific allocator identified will be
effected:</p>
<taglist>
@@ -441,26 +434,23 @@
kilobytes). See <seealso marker="#mseg_mbc_sizes">the description
on how sizes for mseg_alloc multiblock carriers are decided</seealso>
in "the <c>alloc_util</c> framework" section.</item>
- <tag><marker id="M_t"><c><![CDATA[+M<S>t true|false|<amount>]]></c></marker></tag>
+ <tag><marker id="M_t"><c><![CDATA[+M<S>t true|false]]></c></marker></tag>
<item>
- <p>Multiple, thread specific instances of the allocator.
- This option will only have any effect on the runtime system
- with SMP support. Default behaviour on the runtime system with
- SMP support (<c>N</c> equals the number of scheduler threads):</p>
+ Multiple, thread specific instances of the allocator.
+ This option will only have any effect on the runtime system
+ with SMP support. Default behaviour on the runtime system with
+ SMP support:
<taglist>
- <tag><c>temp_alloc</c></tag>
- <item><c>N + 1</c> instances.</item>
<tag><c>ll_alloc</c></tag>
<item><c>1</c> instance.</item>
<tag>Other allocators</tag>
- <item><c>N</c> instances when <c>N</c> is less than or equal to
- <c>16</c>. <c>16</c> instances when <c>N</c> is greater than
- <c>16</c>.</item>
+ <item><c>NoSchedulers+1</c> instances. Each scheduler will use
+ a lock-free instance of its own and other threads will use
+ a common instance.</item>
</taglist>
- <p><c>temp_alloc</c> will always use <c>N + 1</c> instances when
- this option has been enabled regardless of the amount passed.
- Other allocators will use the same amount of instances as the
- amount passed as long as it isn't greater than <c>N</c>.</p>
+ It was previously (before ERTS version 5.9) possible to configure
+ a smaller amount of thread specific instances than schedulers.
+ This is, however, not possible any more.
</item>
</taglist>
<p>Currently the following flags are available for configuration of
diff --git a/erts/doc/src/make.dep b/erts/doc/src/make.dep
deleted file mode 100644
index 98bac78235..0000000000
--- a/erts/doc/src/make.dep
+++ /dev/null
@@ -1,32 +0,0 @@
-# ----------------------------------------------------
-# >>>> Do not edit this file <<<<
-# This file was automaticly generated by
-# /home/gandalf/otp/bin/docdepend
-# ----------------------------------------------------
-
-
-# ----------------------------------------------------
-# TeX files that the DVI file depend on
-# ----------------------------------------------------
-
-book.dvi: absform.tex alt_dist.tex book.tex crash_dump.tex \
- driver.tex driver_entry.tex epmd.tex erl.tex \
- erl_dist_protocol.tex erl_driver.tex erl_ext_dist.tex \
- erl_prim_loader.tex erl_set_memory_block.tex \
- erlang.tex erlc.tex erlsrv.tex erts_alloc.tex \
- escript.tex inet_cfg.tex init.tex match_spec.tex \
- part.tex ref_man.tex run_erl.tex start.tex \
- start_erl.tex tty.tex werl.tex zlib.tex
-
-# ----------------------------------------------------
-# Source inlined when transforming from source to LaTeX
-# ----------------------------------------------------
-
-book.tex: ref_man.xml
-
-# ----------------------------------------------------
-# Pictures that the DVI file depend on
-# ----------------------------------------------------
-
-book.dvi: erl_ext_fig.ps
-