From 027fdcb16894b0239e0659de7a20f0624fc89f30 Mon Sep 17 00:00:00 2001 From: Willy Tarreau Date: Wed, 12 May 2021 08:34:36 +0200 Subject: [PATCH] IMPORT: slz: use the generic function for the last bytes of the crc32 This is the only place where we conditionally use the crc32_fast table, better call the crc32_char inline function for this. This should also reduce by ~1kB the L1 cache footprint of the compression when dealing with small blocks, and at least shows a consistent 0.5% perf improvement. This is slz upstream commit 075351b6c2513b548bac37d6582e46855bc7b36f. --- src/slz.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/slz.c b/src/slz.c index a9104ea9e..76e89e20e 100644 --- a/src/slz.c +++ b/src/slz.c @@ -969,7 +969,7 @@ uint32_t slz_crc32_by4(uint32_t crc, const unsigned char *buf, int len) } while (buf < end) - crc = crc32_fast[0][(crc ^ *buf++) & 0xff] ^ (crc >> 8); + crc = crc32_char(crc, *buf++); return crc; }