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Reduce the default LCache size by half. From 4Kbyte to 2Kbyte.

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2016-06-03 00:07:03 -07:00
parent 6f33ab3e8f
commit 98d2b66e40
1 changed files with 9 additions and 3 deletions
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jerry-core/ecma/base/ecma-lcache.c
+9 -3
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@@ -46,13 +46,19 @@ typedef struct
/** /**
* Number of rows in LCache's hash table * Number of rows in LCache's hash table
*/ */
#define ECMA_LCACHE_HASH_ROWS_COUNT 256 #define ECMA_LCACHE_HASH_ROWS_COUNT 128
/** /**
* Number of entries in a row of LCache's hash table * Number of entries in a row of LCache's hash table
*/ */
#define ECMA_LCACHE_HASH_ROW_LENGTH 2 #define ECMA_LCACHE_HASH_ROW_LENGTH 2
/**
* Mask for hash bits
*/
#define ECMA_LCACHE_HASH_MASK (ECMA_LCACHE_HASH_ROWS_COUNT - 1)
/** /**
* LCache's hash table * LCache's hash table
*/ */
@@ -97,7 +103,7 @@ ecma_lcache_row_idx (jmem_cpointer_t object_cp, /**< compressed pointer to objec
{ {
/* Randomize the hash of the property name with the object pointer using a xor operation, /* Randomize the hash of the property name with the object pointer using a xor operation,
* so properties of different objects with the same name can be cached effectively. */ * so properties of different objects with the same name can be cached effectively. */
return (size_t) ((ecma_string_hash (prop_name_p) ^ object_cp) & (ECMA_LCACHE_HASH_ROWS_COUNT - 1)); return (size_t) ((ecma_string_hash (prop_name_p) ^ object_cp) & ECMA_LCACHE_HASH_MASK);
} /* ecma_lcache_row_idx */ } /* ecma_lcache_row_idx */
#endif /* !CONFIG_ECMA_LCACHE_DISABLE */ #endif /* !CONFIG_ECMA_LCACHE_DISABLE */
@@ -181,7 +187,7 @@ ecma_lcache_lookup (ecma_object_t *object_p, /**< object */
ecma_string_t *entry_prop_name_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t, ecma_string_t *entry_prop_name_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t,
entry_p->prop_name_cp); entry_p->prop_name_cp);
JERRY_ASSERT (prop_name_p->hash == entry_prop_name_p->hash); JERRY_ASSERT ((prop_name_p->hash & ECMA_LCACHE_HASH_MASK) == (entry_prop_name_p->hash & ECMA_LCACHE_HASH_MASK));
if (ECMA_STRING_GET_CONTAINER (prop_name_p) == ECMA_STRING_GET_CONTAINER (entry_prop_name_p) if (ECMA_STRING_GET_CONTAINER (prop_name_p) == ECMA_STRING_GET_CONTAINER (entry_prop_name_p)
&& prop_name_p->u.common_field == entry_prop_name_p->u.common_field) && prop_name_p->u.common_field == entry_prop_name_p->u.common_field)