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Diffstat (limited to 'lib/runtime_tools/doc')
| -rw-r--r-- | lib/runtime_tools/doc/src/notes.xml | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/runtime_tools/doc/src/notes.xml b/lib/runtime_tools/doc/src/notes.xml index 57241edbdc..2db8ca17a0 100644 --- a/lib/runtime_tools/doc/src/notes.xml +++ b/lib/runtime_tools/doc/src/notes.xml @@ -32,6 +32,78 @@ <p>This document describes the changes made to the Runtime_Tools application.</p> +<section><title>Runtime_Tools 1.10</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Add microstate accounting</p> + <p> + Microstate accounting is a way to track which state the + different threads within ERTS are in. The main usage area + is to pin point performance bottlenecks by checking which + states the threads are in and then from there figuring + out why and where to optimize.</p> + <p> + Since checking whether microstate accounting is on or off + is relatively expensive only a few of the states are + enabled by default and more states can be enabled through + configure.</p> + <p> + There is a convinence module called msacc that has been + added to runtime_tools that can assist in gathering and + interpreting the data from Microstate accounting.</p> + <p> + For more information see <seealso + marker="erts:erlang#statistics_microstate_accounting">erlang:statistics(microstate_accounting, + _)</seealso> and the <seealso + marker="runtime_tools:msacc">msacc</seealso> module in + runtime_tools.</p> + <p> + Own Id: OTP-12345</p> + </item> + <item> + <p> + Update dbg and ttb to work with a tracer module as tracer + and tracing on ports.</p> + <p> + Own Id: OTP-13500</p> + </item> + <item> + <p> + Updated dbg to accept the new trace options + <c>monotonic_timestamp</c> and + <c>strict_monotonic_timestamp</c>.</p> + <p> + Own Id: OTP-13502</p> + </item> + <item> + <p> + Introduce LTTng tracing via Erlang tracing.</p> + <p> + For LTTng to be enabled OTP needs to be built with + configure option <c>--with-dynamic-trace=lttng</c>.</p> + <p>The dynamic trace module <c>dyntrace</c> is now + capable to be used as a LTTng sink for Erlang tracing. + For a list of all tracepoints, see <seealso + marker="runtime_tools:LTTng">Runtime Tools User's + Guide</seealso> .</p> + <p>This feature also introduces an incompatible change in + trace tags. The trace tags <c>gc_start</c> and + <c>gc_end</c> has been split into <c>gc_minor_start</c>, + <c>gc_minor_end</c> and <c>gc_major_start</c>, + <c>gc_major_end</c>.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-13532</p> + </item> + </list> + </section> + +</section> + <section><title>Runtime_Tools 1.9.3</title> <section><title>Improvements and New Features</title> |