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-<?xml version="1.0" encoding="latin1" ?>
-<!DOCTYPE chapter SYSTEM "chapter.dtd">
-
-<chapter>
- <header>
- <copyright>
- <year>2006</year><year>2010</year>
- <holder>Ericsson AB. All Rights Reserved.</holder>
- </copyright>
- <legalnotice>
- The contents of this file are subject to the Erlang Public License,
- Version 1.1, (the "License"); you may not use this file except in
- compliance with the License. You should have received a copy of the
- Erlang Public License along with this software. If not, it can be
- retrieved online at http://www.erlang.org/.
-
- Software distributed under the License is distributed on an "AS IS"
- basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- the License for the specific language governing rights and limitations
- under the License.
-
- </legalnotice>
-
- <title>Highlights</title>
- <prepared></prepared>
- <docno></docno>
- <date></date>
- <rev>A</rev>
- <file>highlights.xml</file>
- </header>
- <p>This document lists some highlights of Erlang 5.8/OTP R14A
- (unpatched), compared to the previous version Erlang 5.7.1/OTP R13B,
- with focus on things not already released as R13B patches.</p>
- <p>Note: This document was compiled at the time when R14A was released
- and does not list any features introduced in R14 patches.</p>
-
- <section>
- <title>Erlang Language and Run-time System</title>
- <section>
- <title>New NIF features</title>
- <list type="bulleted">
- <item><p>Send messages from a NIF, or from thread created by NIF, to
- any local process (enif_send)</p></item>
-
- <item><p>Store terms between NIF calls (enif_alloc_env,
- enif_make_copy)</p></item>
-
- <item><p>Create binary terms with user defined memory management
- (enif_make_resource_binary)</p></item>
-
- <item><p>Some incompatible changes made to the API. For more
- information see the warning text in erl_nif(3).</p></item>
- </list>
- </section>
- <section>
- <title>Receive optimizations</title>
- <p>Receive statements that can only read out a newly created
- reference are now specially optimized so that it will execute
- in constant time regardless of the number of messages in the
- receive queue for the process. That optimization will benefit
- calls to gen_server:call(). (See gen:do_call/4 for an example
- of a receive statement that will be optimized.)</p>
- </section>
- <section>
- <title>Improved eprof</title>
- <p>eprof has been reimplemented with support in the Erlang
- virtual machine and is now both faster (i.e. slows down the
- code being measured less) and scales much better. In
- measurements we saw speed-ups compared to the old eprof
- ranging from 6 times (for sequential code that only uses one
- scheduler/core) up to 84 times (for parallel code that uses 8
- cores).</p>
-
- <p>Note: The API for the eprof has been cleaned up and extended.
- See the documentation.</p>
- </section>
- </section>
- <section>
- <title>New features in Existing Applications</title>
-
- <section>
- <title>Common_test</title>
-
- <p>
- It is now possible for the user to provide specific callback
- modules that handle test configuration data, so that data on
- arbitray form can be accessed (e.g. by reading files or by
- communicating with a configuration server process). Two
- default callback modules have been introduced in Common Test:
- ct_config_plain and ct_config_xml. The former is used to
- handle the traditional Common Test configuration files (with
- terms on key-value tuple form) and the latter to handle
- configuration data on XML representation.
- </p>
- <p>
- The run_test script has been replaced by a program (with the
- same name) which can be executed without explicit
- installation. The start flags are the same as for the legacy
- start script.
- </p>
- </section>
- <section>
- <title>STDLIB</title>
- <p>
- The module binary from EEP31 (and EEP9) is implemented.
- </p>
- </section>
- </section>
-</chapter>
-