Merge branch 'rickard/port-optimizations/OTP-10336' into rickard/r16/port-optimizations/OTP-10336

* rickard/port-optimizations/OTP-10336:
  Change annotate level for emacs-22 in cerl
  Update etp-commands
  Add documentation on communication in Erlang
  Add support for busy port message queue
  Add driver callback epilogue
  Implement true asynchronous signaling between processes and ports
  Add erl_drv_[send|output]_term
  Move busy port flag
  Use rwlock for driver list
  Optimize management of port tasks
  Improve configuration of process and port tables
  Remove R9 compatibility features
  Use ptab functionality also for ports
  Prepare for use of ptab functionality also for ports
  Atomic port state
  Generalize process table implementation
  Implement functionality for delaying thread progress from unmanaged threads

Conflicts:
	erts/doc/src/erl_driver.xml
	erts/doc/src/erlang.xml
	erts/emulator/beam/beam_bif_load.c
	erts/emulator/beam/beam_bp.c
	erts/emulator/beam/beam_emu.c
	erts/emulator/beam/bif.c
	erts/emulator/beam/copy.c
	erts/emulator/beam/erl_alloc.c
	erts/emulator/beam/erl_alloc.types
	erts/emulator/beam/erl_bif_info.c
	erts/emulator/beam/erl_bif_port.c
	erts/emulator/beam/erl_bif_trace.c
	erts/emulator/beam/erl_init.c
	erts/emulator/beam/erl_message.c
	erts/emulator/beam/erl_port_task.c
	erts/emulator/beam/erl_process.c
	erts/emulator/beam/erl_process.h
	erts/emulator/beam/erl_process_lock.c
	erts/emulator/beam/erl_trace.c
	erts/emulator/beam/export.h
	erts/emulator/beam/global.h
	erts/emulator/beam/io.c
	erts/emulator/sys/unix/sys.c
	erts/emulator/sys/vxworks/sys.c
	erts/emulator/test/port_SUITE.erl
	erts/etc/unix/cerl.src
	erts/preloaded/ebin/erlang.beam
	erts/preloaded/ebin/prim_inet.beam
	erts/preloaded/src/prim_inet.erl
	lib/hipe/cerl/erl_bif_types.erl
	lib/kernel/doc/src/inet.xml
	lib/kernel/src/inet.erl

1 files changed, 11 insertions, 13 deletions

diff --git a/system/doc/efficiency_guide/advanced.xml b/system/doc/efficiency_guide/advanced.xml
index 821175bb09..ac35a37bc4 100644
--- a/system/doc/efficiency_guide/advanced.xml
+++ b/system/doc/efficiency_guide/advanced.xml
@@ -123,12 +123,11 @@ On 64-bit architectures: 4 words for a reference from the current local node, an
       <tag><em>Processes</em></tag>
       <item>
         <p>The maximum number of simultaneously alive Erlang processes is
-          by default 32768. This limit can be raised up to at most 268435456
-          processes at startup (see documentation of the system flag
-          <seealso marker="erts:erl#max_processes">+P</seealso> in the
-          <seealso marker="erts:erl">erl(1)</seealso> documentation).
-          The maximum limit of 268435456 processes will at least on a 32-bit
-          architecture be impossible to reach due to memory shortage.</p>
+          by default 32768. This limit can be configured at startup,
+	  for more information see the
+	  <seealso marker="erts:erl#max_processes"><c>+P</c></seealso>
+	  command line flag of
+	  <seealso marker="erts:erl"><c>erl(1)</c></seealso>.</p>
       </item>
       <tag><em>Distributed nodes</em></tag>
       <item>
@@ -184,13 +183,12 @@ On 64-bit architectures: 4 words for a reference from the current local node, an
       <tag><em>Open ports</em></tag>
       <item>
         <marker id="ports"></marker>
-        <p>The maximum number of simultaneously open Erlang ports is
-          by default 1024. This limit can be raised up to at most 268435456
-          at startup (see environment variable
-          <seealso marker="erts:erlang#ERL_MAX_PORTS">ERL_MAX_PORTS</seealso>
-          in <seealso marker="erts:erlang">erlang(3)</seealso>)
-          The maximum limit of 268435456 open ports will at least on a 32-bit
-          architecture be impossible to reach due to memory shortage.</p>
+	  <p>The maximum number of simultaneously oper Erlang ports is
+	  often by default 16384. This limit can be configured at startup,
+	  for more information see the
+	  <seealso marker="erts:erl#max_ports"><c>+Q</c></seealso>
+	  command line flag of
+	  <seealso marker="erts:erl"><c>erl(1)</c></seealso>.</p>
       </item>
       <tag><em>Open files, and sockets</em></tag>
       <item>      <marker id="files_sockets"></marker>