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diff --git a/lib/observer/doc/src/notes.xml b/lib/observer/doc/src/notes.xml new file mode 100644 index 0000000000..20fc19694b --- /dev/null +++ b/lib/observer/doc/src/notes.xml @@ -0,0 +1,222 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE chapter SYSTEM "chapter.dtd"> + +<chapter> + <header> + <copyright> + <year>2004</year><year>2009</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>Observer Release Notes</title> + <prepared>otp_appnotes</prepared> + <docno>nil</docno> + <date>nil</date> + <rev>nil</rev> + <file>notes.xml</file> + </header> + <p>This document describes the changes made to the Observer + application.</p> + +<section><title>Observer 0.9.8.1</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Major improvements of the Erlang distribution for Erlang + runtime systems with SMP support. Previously distribution + port locks were heavily contended, and all encoding and + decoding for a specific distribution channel had to be + done in sequence. Lock contention due to the distribution + is now negligible and both encoding and decoding of + Erlang messages can be done in parallel.</p> + <p> + The old atom cache protocol used by the Erlang + distribution has been dropped since it effectively + prevented all parallel encoding and decoding of messages + passed over the same distribution channel.</p> + <p> + A new atom cache protocol has been introduced which + isolates atom cache accesses and makes parallel encoding + and decoding of messages passed over the same + distribution channel possible. The new atom cache + protocol also use an atom cache size 8 times larger than + before. The new atom cache protocol is documented in the + ERTS users guide.</p> + <p> + Erlang messages received via the distribution are now + decoded by the receiving Erlang processes without holding + any distribution channel specific locks. Erlang messages + and signals sent over the distribution are as before + encoded by the sending Erlang process, but now without + holding any distribution channel specific locks during + the encoding. That is, both encoding and decoding can be + and are done in parallel regardless of distribution + channel used.</p> + <p> + The part that cannot be parallelized is the atom cache + updates. Atom cache updates are therefore now scheduled + on the distribution port. Since it is only one entity per + distribution channel doing this work there is no lock + contention due to the atom cache updates.</p> + <p> + The new runtime system does not understand the old atom + cache protocol. New and old runtime systems can however + still communicate, but no atom cache will be used.</p> + <p> + Own Id: OTP-7774</p> + </item> + </list> + </section> + +</section> + +<section><title>Observer 0.9.8</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + <c>etop</c> would crash if the emulator's custom + allocators had been turned off (e.g. using the + <c>+Meamin</c> option).</p> + <p> + Own Id: OTP-7519</p> + </item> + <item> + <p>The copyright notices have been updated.</p> + <p> + Own Id: OTP-7851</p> + </item> + </list> + </section> + +</section> + + <section> + <title>Observer 0.9.7.4</title> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>Minor Makefile changes.</p> + <p>Own Id: OTP-6689</p> + </item> + <item> + <p>Obsolete guard tests (such as list()) have been replaced + with the modern guard tests (such as is_list()).</p> + <p>Own Id: OTP-6725</p> + </item> + </list> + </section> + </section> + + <section> + <title>Observer 0.9.7.3</title> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>This application has been updated to eliminate warnings + by Dialyzer.</p> + <p>Own Id: OTP-6551</p> + </item> + </list> + </section> + </section> + + <section> + <title>Observer 0.9.7.2</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>Several minor bugs and race conditions eliminated in the + runtime_tools and observer applications.</p> + <p>Own Id: OTP-6265</p> + </item> + </list> + </section> + </section> + + <section> + <title>Observer 0.9.7.1</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>Crash dump with large integers could crash the + <c>crashdump_viewer</c>.</p> + <p>Own Id: OTP-6301</p> + </item> + </list> + </section> + </section> + + <section> + <title>Observer 0.9.7 (R11B)</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>Fixed a bug in <c>etop</c> which made the Load and Memory + information in the header incorrect -- for example the + value shown for <c>binary</c> (memory allocated for + binaries) was actually the number of currently running + processes. (Thanks to Rikard Johansson.)</p> + <p>Own Id: OTP-6075</p> + </item> + </list> + </section> + </section> + + <section> + <title>Observer 0.9.6.2</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>The Observer application has been recompiled because of + a compiler bug.</p> + <p>Own Id: OTP-5700</p> + </item> + </list> + </section> + </section> + + <section> + <title>Observer 0.9.6.1</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p><c>crashdump_viewer</c> is faster when showing message, + dictionary, and stack dump for large processes.</p> + <p>Own Id: OTP-5408</p> + </item> + </list> + </section> + </section> +</chapter> + |