Changeset 46199 in vbox for trunk/src/VBox/Runtime/common/string

Timestamp:

May 21, 2013 7:49:19 PM (12 years ago)

Author:

vboxsync

Message:

strcache.cpp: Enabled it. Some tuning.

File:

• trunk/src/VBox/Runtime/common/string/strcache.cpp (modified) (4 diffs)

trunk/src/VBox/Runtime/common/string/strcache.cpp

@@ -75 +75 @@
  */
 #define RTSTRCACHE_MERGED_THRESHOLD_BIT     6
+
+
+/** The number of bytes (power of two) that the merged allocation lists should
+ * be grown by.  Must be much greater than RTSTRCACHE_MERGED_THRESHOLD. */
+#define RTSTRCACHE_MERGED_GROW_SIZE         _32K
+/** The number of bytes (power of two) that the fixed allocation lists should
+ * be grown by. */
+#define RTSTRCACHE_FIXED_GROW_SIZE          _32K
 
 /** Validates a string cache handle, translating RTSTRCACHE_DEFAULT when found,
@@ -556 +564 @@
          * cases, but it's too much effort to write and execute).
          */
-        size_t const     cbChunk = RTSTRCACHE_HEAP_THRESHOLD * 16;   AssertReturn(cbChunk > cbEntry * 2, NULL);
+        size_t const     cbChunk = RTSTRCACHE_MERGED_GROW_SIZE; AssertReturn(cbChunk > cbEntry * 2, NULL);
         PRTSTRCACHECHUNK pChunk  = (PRTSTRCACHECHUNK)RTMemPageAlloc(cbChunk);
         if (!pChunk)
@@ -628 +636 @@
     if (!pFree)
     {
-        PRTSTRCACHECHUNK pChunk = (PRTSTRCACHECHUNK)RTMemPageAlloc(PAGE_SIZE);
+        PRTSTRCACHECHUNK pChunk = (PRTSTRCACHECHUNK)RTMemPageAlloc(RTSTRCACHE_FIXED_GROW_SIZE);
         if (!pChunk)
             return NULL;
@@ -762 +770 @@
         if (cbEntry >= RTSTRCACHE_MERGED_THRESHOLD_BIT)
         {
-            if (cbEntry < RTSTRCACHE_HEAP_THRESHOLD * 2)
+            if (cbEntry <= RTSTRCACHE_HEAP_THRESHOLD)
                 pEntry = rtStrCacheAllocMergedEntry(pThis, uHash, pchString, cchString, cbEntry);
             else