commit e3e60f1c3c09a3d65c1008735edc464eaea76b06
Author: Daniel Black <daniel.black@au.ibm.com>
Date:   Thu Feb 25 23:22:28 2016 -0600

    LF memory allocator to align to line cache size
    
    Rather than using a constant 64 line size, this used the CPU_LEVEL1_DCACHE_LINESIZE
    as a mechanism to calculate the pad size.

diff --git a/include/lf.h b/include/lf.h
index d807b21..3e9cdb3 100644
--- a/include/lf.h
+++ b/include/lf.h
@@ -115,9 +115,9 @@ typedef struct {
   void  *purgatory;
   uint32 purgatory_count;
   uint32 volatile link;
-/* we want sizeof(LF_PINS) to be 64 to avoid false sharing */
-#if SIZEOF_INT*2+SIZEOF_CHARP*(LF_PINBOX_PINS+3) != 64
-  char pad[64-sizeof(uint32)*2-sizeof(void*)*(LF_PINBOX_PINS+3)];
+/* we want sizeof(LF_PINS) to be CPU_LEVEL1_DCACHE_LINESIZE to avoid false sharing */
+#if SIZEOF_INT*2+SIZEOF_CHARP*(LF_PINBOX_PINS+3) != CPU_LEVEL1_DCACHE_LINESIZE
+  char pad[CPU_LEVEL1_DCACHE_LINESIZE-sizeof(uint32)*2-sizeof(void*)*(LF_PINBOX_PINS+3)];
 #endif
 } LF_PINS;
 
diff --git a/mysys/lf_alloc-pin.c b/mysys/lf_alloc-pin.c
index 65db784..b41c508 100644
--- a/mysys/lf_alloc-pin.c
+++ b/mysys/lf_alloc-pin.c
@@ -115,7 +115,7 @@ void lf_pinbox_init(LF_PINBOX *pinbox, uint free_ptr_offset,
                     lf_pinbox_free_func *free_func, void *free_func_arg)
 {
   DBUG_ASSERT(free_ptr_offset % sizeof(void *) == 0);
-  compile_time_assert(sizeof(LF_PINS) == 64);
+  compile_time_assert(sizeof(LF_PINS) == CPU_LEVEL1_DCACHE_LINESIZE);
   lf_dynarray_init(&pinbox->pinarray, sizeof(LF_PINS));
   pinbox->pinstack_top_ver= 0;
   pinbox->pins_in_array= 0;