diff options
Diffstat (limited to 'erts/doc')
| -rw-r--r-- | erts/doc/src/erts_alloc.xml | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml index 53e136d76c..0893eb291c 100644 --- a/erts/doc/src/erts_alloc.xml +++ b/erts/doc/src/erts_alloc.xml @@ -559,6 +559,20 @@ than this threshold, otherwise the carrier is shrunk. See also <seealso marker="#M_rsbcst"><c>rsbcst</c></seealso>.</p> </item> + <tag><marker id="M_atags"/><c><![CDATA[+M<S>atags true|false]]></c></tag> + <item> + <p>Adds a small tag to each allocated block that contains basic + information about what it is and who allocated it. Use the + <seealso marker="tools:instrument"><c>instrument</c></seealso> + module to inspect this information.</p> + + <p>The runtime overhead is one word per allocation when enabled. This + may change at any time in the future.</p> + + <p>The default is <c>true</c> for <c>binary_alloc</c> and + <c>driver_alloc</c>, and <c>false</c> for the other allocator + types.</p> + </item> <tag><marker id="M_e"/><c><![CDATA[+M<S>e true|false]]></c></tag> <item> <p>Enables allocator <c><![CDATA[<S>]]></c>.</p> @@ -724,22 +738,12 @@ <section> <title>Instrumentation Flags</title> <taglist> - <tag><marker id="Mim"/><c>+Mim true|false</c></tag> - <item> - <p>A map over current allocations is kept by the emulator. - The allocation map can be retrieved through module - <seealso marker="tools:instrument"> - <c>instrument(3)</c></seealso>. <c>+Mim true</c> - implies <c>+Mis true</c>. <c>+Mim true</c> is the same as flag - <seealso marker="erl#instr"><c>-instr</c></seealso> in - <c>erl(1)</c>.</p> - </item> - <tag><marker id="Mis"/><c>+Mis true|false</c></tag> - <item> - <p>Status over allocated memory is kept by the emulator. - The allocation status can be retrieved through module - <seealso marker="tools:instrument"> - <c>instrument(3)</c></seealso>.</p> + <tag><c>+M<S>atags</c></tag> + <item> + <p>Adds a small tag to each allocated block that contains basic + information about what it is and who allocated it. See + <seealso marker="#M_atags"><c>+M<S>atags</c></seealso> for a + more complete description.</p> </item> <tag><marker id="Mit"/><c>+Mit X</c></tag> <item> |