Remove THREAD_STATS.

A THREAD_STATS macro duplicates gathering information that could be
obtained by systemtap probes instead.

1 files changed, 0 insertions, 20 deletions

diff --git a/malloc/arena.c b/malloc/arena.c
index 5088a253ec..71678a9dc4 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -37,14 +37,6 @@
    mmap threshold, so that requests with a size just below that
    threshold can be fulfilled without creating too many heaps.  */
 
-
-#ifndef THREAD_STATS
-# define THREAD_STATS 0
-#endif
-
-/* If THREAD_STATS is non-zero, some statistics on mutex locking are
-   computed.  */
-
 /***************************************************************************/
 
 #define top(ar_ptr) ((ar_ptr)->top)
@@ -79,13 +71,6 @@ static mutex_t list_lock = MUTEX_INITIALIZER;
 static size_t narenas = 1;
 static mstate free_list;
 
-#if THREAD_STATS
-static int stat_n_heaps;
-# define THREAD_STAT(x) x
-#else
-# define THREAD_STAT(x) do ; while (0)
-#endif
-
 /* Mapped memory in non-main arenas (reliable only for NO_THREADS). */
 static unsigned long arena_mem;
 
@@ -593,7 +578,6 @@ new_heap (size_t size, size_t top_pad)
   h = (heap_info *) p2;
   h->size = size;
   h->mprotect_size = size;
-  THREAD_STAT (stat_n_heaps++);
   LIBC_PROBE (memory_heap_new, 2, h, h->size);
   return h;
 }
@@ -777,8 +761,6 @@ _int_new_arena (size_t size)
 
   (void) mutex_unlock (&list_lock);
 
-  THREAD_STAT (++(a->stat_lock_loop));
-
   return a;
 }
 
@@ -800,7 +782,6 @@ get_free_list (void)
           LIBC_PROBE (memory_arena_reuse_free_list, 1, result);
           (void) mutex_lock (&result->mutex);
           tsd_setspecific (arena_key, (void *) result);
-          THREAD_STAT (++(result->stat_lock_loop));
         }
     }
 
@@ -840,7 +821,6 @@ reused_arena (mstate avoid_arena)
 out:
   LIBC_PROBE (memory_arena_reuse, 2, result, avoid_arena);
   tsd_setspecific (arena_key, (void *) result);
-  THREAD_STAT (++(result->stat_lock_loop));
   next_to_use = result->next;
 
   return result;