Merge branch 'sverk/etp-alloc-stats' into maint

* sverk/etp-alloc-stats:
  erts: Fix documentation for no of default allocator instances
  erts: Add etp-alloc-stats and etp-alloc-instances

2 files changed, 150 insertions, 10 deletions

diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml
index c9eca39a99..1ade41f1aa 100644
--- a/erts/doc/src/erts_alloc.xml
+++ b/erts/doc/src/erts_alloc.xml
@@ -4,7 +4,7 @@
 <cref>
   <header>
     <copyright>
-      <year>2002</year><year>2013</year>
+      <year>2002</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -531,15 +531,9 @@
        <p>Multiple, thread specific instances of the allocator.
        This option will only have any effect on the runtime system
        with SMP support. Default behaviour on the runtime system with
-       SMP support:</p>
-       <taglist>
-         <tag><c>ll_alloc</c></tag>
-	 <item><c>1</c> instance.</item>
-         <tag>Other allocators</tag>
-	 <item><c>NoSchedulers+1</c> instances. Each scheduler will use
-	 a lock-free instance of its own and other threads will use
-	 a common instance.</item>
-       </taglist>
+       SMP support is <c>NoSchedulers+1</c> instances. Each scheduler will use
+       a lock-free instance of its own and other threads will use
+       a common instance.</p>
        <p>It was previously (before ERTS version 5.9) possible to configure
        a smaller amount of thread specific instances than schedulers.
        This is, however, not possible any more.</p>
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index 19c92681d0..bf6eb00314 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -2842,6 +2842,152 @@ document etp-search-alloc
 end
 
 
+define etp-alloc-stats
+  printf "\nIx Name    Inst.   Blocks        Bytes    Carriers    Crr.bytes  Util\n"
+  set $etp_tot_block_no = 0
+  set $etp_tot_block_sz = 0
+  set $etp_tot_crr_no = 0
+  set $etp_tot_crr_sz = 0
+  set $etp_ERTS_ALC_A_MIN = 1
+  set $etp_ERTS_ALC_A_MAX = (sizeof(erts_allctrs) / sizeof(*erts_allctrs)) - 1
+
+  set $etp_ix = $etp_ERTS_ALC_A_MIN
+  while $etp_ix <= $etp_ERTS_ALC_A_MAX
+    set $etp_allctr = 0
+    set $etp_alloc = erts_allctrs[$etp_ix].alloc
+    if $etp_alloc != erts_sys_alloc
+      if $etp_alloc == erts_alcu_alloc_thr_spec || \
+         $etp_alloc == erts_alcu_alloc_thr_pref
+        set $etp_instance = 0
+        set $etp_block_no = 0
+        set $etp_block_sz = 0
+        set $etp_crr_no = 0
+        set $etp_crr_sz = 0
+        set $etp_tspec = (ErtsAllocatorThrSpec_t *) erts_allctrs[$etp_ix].extra
+	if $etp_tspec->enabled
+          while $etp_instance < $etp_tspec->size
+            set $etp_allctr = $etp_tspec->allctr[$etp_instance]
+            set $etp_block_no = $etp_block_no + $etp_allctr->mbcs.blocks.curr.no \
+					      + $etp_allctr->sbcs.blocks.curr.no
+            set $etp_block_sz = $etp_block_sz + $etp_allctr->mbcs.blocks.curr.size \
+					      + $etp_allctr->sbcs.blocks.curr.size
+            set $etp_crr_no = $etp_crr_no + $etp_allctr->mbcs.curr.norm.mseg.no \
+					  + $etp_allctr->sbcs.curr.norm.mseg.no \
+					  + $etp_allctr->mbcs.curr.norm.sys_alloc.no \
+					  + $etp_allctr->sbcs.curr.norm.sys_alloc.no
+            set $etp_crr_sz = $etp_crr_sz + $etp_allctr->mbcs.curr.norm.mseg.size \
+					  + $etp_allctr->sbcs.curr.norm.mseg.size \
+					  + $etp_allctr->mbcs.curr.norm.sys_alloc.size \
+					  + $etp_allctr->sbcs.curr.norm.sys_alloc.size
+            set $etp_instance = $etp_instance + 1
+          end
+	else
+          printf "erts_allctr[%d]: Disabled (thread specific)\n", $etp_ix
+	end
+      else
+        if $etp_alloc == erts_alcu_alloc_ts || $etp_alloc == erts_alcu_alloc
+          set $etp_allctr = (Allctr_t*) erts_allctrs[$etp_ix].extra
+          set $etp_block_no = $etp_allctr->mbcs.blocks.curr.no \
+			    + $etp_allctr->sbcs.blocks.curr.no
+          set $etp_block_sz = $etp_allctr->mbcs.blocks.curr.size \
+			    + $etp_allctr->sbcs.blocks.curr.size
+          set $etp_crr_no = $etp_allctr->mbcs.curr.norm.mseg.no \
+			  + $etp_allctr->sbcs.curr.norm.mseg.no \
+			  + $etp_allctr->mbcs.curr.norm.sys_alloc.no \
+			  + $etp_allctr->sbcs.curr.norm.sys_alloc.no
+          set $etp_crr_sz = $etp_allctr->mbcs.curr.norm.mseg.size \
+			  + $etp_allctr->sbcs.curr.norm.mseg.size \
+			  + $etp_allctr->mbcs.curr.norm.sys_alloc.size \
+			  + $etp_allctr->sbcs.curr.norm.sys_alloc.size
+	  set $etp_instance = 1
+        else
+          printf "erts_allctr[%d]: Unknown allocation function: ", $etp_ix
+          p $etp_alloc
+        end
+      end
+    end
+    if $etp_allctr != 0
+      printf "%2d %-8s%2d%12lu%13lu%12lu%13lu", $etp_ix, $etp_allctr->name_prefix, \
+	     $etp_instance, \
+	     $etp_block_no, $etp_block_sz, $etp_crr_no, $etp_crr_sz
+      if $etp_crr_sz != 0
+        printf "%5lu%%", ($etp_block_sz * 100) / $etp_crr_sz
+      end
+      printf "\n"
+      set $etp_tot_block_no = $etp_tot_block_no + $etp_block_no
+      set $etp_tot_block_sz = $etp_tot_block_sz + $etp_block_sz
+      set $etp_tot_crr_no = $etp_tot_crr_no + $etp_crr_no
+      set $etp_tot_crr_sz = $etp_tot_crr_sz + $etp_crr_sz
+    end
+    set $etp_ix = $etp_ix + 1
+  end
+  printf "\nTotal:       %12lu%13lu%12lu%13lu", $etp_tot_block_no, $etp_tot_block_sz, \
+				     $etp_tot_crr_no, $etp_tot_crr_sz
+  if $etp_tot_crr_sz != 0
+    printf "%5lu%%", ($etp_tot_block_sz * 100) / $etp_tot_crr_sz
+  end
+  printf "\n"
+end
+
+document etp-alloc-stats
+%---------------------------------------------------------------------------
+% etp-alloc-stats
+%
+% Combine and print allocator statistics
+%---------------------------------------------------------------------------
+end
+
+
+define etp-alloc-instances
+  set $etp_ERTS_ALC_A_MIN = 1
+  set $etp_ERTS_ALC_A_MAX = (sizeof(erts_allctrs) / sizeof(*erts_allctrs)) - 1
+
+  set $etp_ix = $arg0
+  if $etp_ix >= $etp_ERTS_ALC_A_MIN && $etp_ix <= $etp_ERTS_ALC_A_MAX
+    set $etp_allctr = 0
+    set $etp_alloc = erts_allctrs[$etp_ix].alloc
+    if $etp_alloc == erts_sys_alloc
+      printf "Allocator %d is sys_alloc\n", $etp_ix
+    else
+      if $etp_alloc == erts_alcu_alloc_thr_spec || \
+         $etp_alloc == erts_alcu_alloc_thr_pref
+        set $etp_instance = 0
+        set $etp_tspec = (ErtsAllocatorThrSpec_t *) erts_allctrs[$etp_ix].extra
+	if $etp_tspec->enabled
+          printf "All instances for allocator '%s'\n", $etp_tspec->allctr[0]->name_prefix
+          while $etp_instance < $etp_tspec->size
+	    p $etp_tspec->allctr[$etp_instance]
+            set $etp_instance = $etp_instance + 1
+          end
+	else
+          printf "erts_allctr[%d]: Disabled (thread specific)\n", $etp_ix
+	end
+      else
+        if $etp_alloc == erts_alcu_alloc_ts || $etp_alloc == erts_alcu_alloc
+          set $etp_allctr = (Allctr_t*) erts_allctrs[$etp_ix].extra
+          printf "Single instances for allocator '%s'\n", $etp_allctr->name_prefix
+	  p $etp_allctr
+        else
+          printf "erts_allctr[%d]: Unknown allocation function: ", $etp_ix
+          p $etp_alloc
+        end
+      end
+    end
+  else
+    printf "Allocator type not between %d and %d\n", $etp_ERTS_ALC_A_MIN, $etp_ERTS_ALC_A_MAX
+  end
+end
+
+document etp-alloc-instances
+%---------------------------------------------------------------------------
+% etp-alloc-instances
+%
+% Print pointers to all allocator instances for a specific type (Ix)
+%---------------------------------------------------------------------------
+end
+
+
+
 
 define etp-overlapped-heaps
 # Args: