From: Yann Collet <yann.collet.73@gmail.com>
Date: Wed, 8 Sep 2021 15:58:28 +0000 (-0700)
Subject: change update rate to 11/10/10/10
X-Git-Tag: v1.5.1~1^2~112^2~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef78611c269bc96cf88748cdd0e6d9e5c3ad74b7;p=thirdparty%2Fzstd.git

change update rate to 11/10/10/10

better for larger blocks,
very small inefficiency on small block.
---

diff --git a/lib/compress/zstd_opt.c b/lib/compress/zstd_opt.c
index f77d5eb00..9f658bee4 100644
--- a/lib/compress/zstd_opt.c
+++ b/lib/compress/zstd_opt.c
@@ -228,10 +228,10 @@ ZSTD_rescaleFreqs(optState_t* const optPtr,
     } else {   /* new block : re-use previous statistics, scaled down */
 
         if (compressedLiterals)
-            optPtr->litSum = ZSTD_scaleStats(optPtr->litFreq, MaxLit, 10);
-        optPtr->litLengthSum = ZSTD_scaleStats(optPtr->litLengthFreq, MaxLL, 9);
-        optPtr->matchLengthSum = ZSTD_scaleStats(optPtr->matchLengthFreq, MaxML, 9);
-        optPtr->offCodeSum = ZSTD_scaleStats(optPtr->offCodeFreq, MaxOff, 9);
+            optPtr->litSum = ZSTD_scaleStats(optPtr->litFreq, MaxLit, 11);
+        optPtr->litLengthSum = ZSTD_scaleStats(optPtr->litLengthFreq, MaxLL, 10);
+        optPtr->matchLengthSum = ZSTD_scaleStats(optPtr->matchLengthFreq, MaxML, 10);
+        optPtr->offCodeSum = ZSTD_scaleStats(optPtr->offCodeFreq, MaxOff, 10);
     }
 
     ZSTD_setBasePrices(optPtr, optLevel);