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authorLukas Larsson <[email protected]>2016-03-30 10:22:28 +0200
committerLukas Larsson <[email protected]>2016-04-15 15:08:52 +0200
commita1b352dfc68d501a385240cdb7f45a96cf9e3358 (patch)
treeec4f90a6141470eddcf6a43742695e135a8334c9
parentb4e236a15bb5065facc3b1dee6da936cea5b8ac9 (diff)
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erts: Add comment about future trace optimizations
-rw-r--r--erts/emulator/beam/erl_trace.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 3027e34968..cd3c14e213 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -20,6 +20,19 @@
/*
* Support functions for tracing.
+ *
+ * Ideas for future speed improvements in tracing framework:
+ * * Move ErtsTracerNif into ErtsTracer
+ * + Removes need for locking
+ * + Removes hash lookup overhead
+ * + Use a refc on the ErtsTracerNif to know when it can
+ * be freed. We don't want to allocate a separate
+ * ErtsTracerNif for each module used.
+ * * Optimize GenericBp for cache locality by reusing equivalent
+ * GenericBp and GenericBpData in multiple tracer points.
+ * + Possibly we want to use specialized instructions for different
+ * types of trace so that the knowledge of which struct is used
+ * can be in the instruction.
*/
#ifdef HAVE_CONFIG_H