From: Zeev Suraski <zeev@php.net>
Date: Tue, 16 May 2000 15:42:16 +0000 (+0000)
Subject: - Small optimization. Filling up the Cache helps performance.
X-Git-Tag: php-4.0.0~87
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ac0e07ecdaa1ecda91de17784d0e0348c105c435;p=php

- Small optimization. Filling up the Cache helps performance.
---

diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index d9602c3f69..2b1034eab1 100644
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -319,6 +319,9 @@ ZEND_API int zend_set_memory_limit(unsigned int memory_limit)
 
 ZEND_API void start_memory_manager(ALS_D)
 {
+	int i, j;
+	void *cached_entries[MAX_CACHED_MEMORY][MAX_CACHED_ENTRIES];
+
 	AG(phead) = AG(head) = NULL;
 	
 #if MEMORY_LIMIT
@@ -334,6 +337,18 @@ ZEND_API void start_memory_manager(ALS_D)
 
 	memset(AG(fast_cache_list_head), 0, sizeof(AG(fast_cache_list_head)));
 	memset(AG(cache_count),0,MAX_CACHED_MEMORY*sizeof(unsigned char));
+
+	/* Initialize cache, to prevent fragmentation */
+	for (i=1; i<MAX_CACHED_MEMORY; i++) {
+		for (j=0; j<MAX_CACHED_ENTRIES; j++) {
+			cached_entries[i][j] = emalloc(i);
+		}
+	}
+	for (i=1; i<MAX_CACHED_MEMORY; i++) {
+		for (j=0; j<MAX_CACHED_ENTRIES; j++) {
+			efree(cached_entries[i][j]);
+		}
+	}
 }