From aea57ebcb1b053370ea1f0e29cdc666291bc5d5e Mon Sep 17 00:00:00 2001 From: Xin LI Date: Mon, 19 Feb 2024 15:01:04 -0800 Subject: [PATCH] zlib: use more memory for a small deflate speedup. The LIT_MEM option uses slightly more memory (for base gzip(1), about 16kiB; according to the author, about 6% for default deflate settings) for a small speedup. The performance gain is more noticeable for input data with higher entropy and less significant for data that is highly compressible, such as source code and logs. MFC after: 1 month --- sys/contrib/zlib/deflate.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/contrib/zlib/deflate.h b/sys/contrib/zlib/deflate.h index 300c6ada62b..df76fc6fc5d 100644 --- a/sys/contrib/zlib/deflate.h +++ b/sys/contrib/zlib/deflate.h @@ -25,7 +25,7 @@ /* define LIT_MEM to slightly increase the speed of deflate (order 1% to 2%) at the cost of a larger memory footprint */ -/* #define LIT_MEM */ +#define LIT_MEM /* =========================================================================== * Internal compression state.