[PATCH] 2.4.21 zlib changes #1 memlevel

Jörn Engel (joern@wohnheim.fh-wedel.de)
Sat, 14 Jun 2003 15:51:33 +0200

Reduce MAX_MEM_LEVEL to 8. This reduces zlib memory consumption by
128k (from ~400k to ~270k) at the theoretical cost of worse
compression. No code currently in the kernel actually uses the better
compression, so the practical cost is zero.

Jörn

-- 
A victorious army first wins and then seeks battle.
-- Sun Tzu


--- linux-2.4.20/include/linux/zconf.h~zlib_memlevel	2002-11-29 00:53:15.000000000 +0100
+++ linux-2.4.20/include/linux/zconf.h	2003-06-10 17:01:16.000000000 +0200
@@ -35,7 +35,7 @@
 
 /* Maximum value for memLevel in deflateInit2 */
 #ifndef MAX_MEM_LEVEL
-#  define MAX_MEM_LEVEL 9
+#  define MAX_MEM_LEVEL 8
 #endif
 
 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
-
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