Merge branch 'egil/binary-gc' into ccase/r13b04_dev

* egil/binary-gc:
  Add documentation for binary heap size settings.
  Add tracing capabilities for binary virtual heap
  Add min heap size start options to beam and erl
  Improve binary garbage collection

OTP-8370  The default settings for garbage collection of binaries has been
          adjusted to be less aggressive than in R13B03. It is now also
          possible configure the settings for binary GC. See the
          documentation for spawn_opt/2-5, erlang:system_info/1,
          erlang:system_flag/2, process_flag/2-3, erlang:trace/3, and the
          documenation for erl for the new command line options +hms and
          +hmbs.

1 files changed, 4 insertions, 2 deletions

diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 1f841b2113..f58b6932b3 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -477,6 +477,7 @@ struct ErtsPendingSuspend_ {
 #  define MSO(p)            (p)->off_heap
 #  define MIN_HEAP_SIZE(p)  (p)->min_heap_size
 
+#  define MIN_VHEAP_SIZE(p)   (p)->min_vheap_size
 #  define BIN_VHEAP_SZ(p)     (p)->bin_vheap_sz
 #  define BIN_OLD_VHEAP_SZ(p) (p)->bin_old_vheap_sz
 #  define BIN_OLD_VHEAP(p)    (p)->bin_old_vheap
@@ -495,6 +496,7 @@ struct process {
     Eterm* hend;		/* Heap end */
     Uint heap_sz;		/* Size of heap in words */
     Uint min_heap_size;         /* Minimum size of heap (in words). */
+    Uint min_vheap_size;        /* Minimum size of virtual heap (in words). */
 
 #if !defined(NO_FPE_SIGNALS)
     volatile unsigned long fp_exception;
@@ -730,8 +732,8 @@ typedef struct {
      * The following items are only initialized if the SPO_USE_ARGS flag is set.
      */
     Uint min_heap_size;		/* Minimum heap size (must be a valued returned
-				 * from next_heap_size()).
-				 */
+				 * from next_heap_size()).  */
+    Uint min_vheap_size;	/* Minimum virtual heap size  */
     int priority;		/* Priority for process. */
     Uint16 max_gen_gcs;		/* Maximum number of gen GCs before fullsweep. */
     int scheduler;