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authorPádraig Brady <P@draigBrady.com>2011-07-21 08:25:49 +0100
committerPádraig Brady <P@draigBrady.com>2012-04-30 11:14:31 +0100
commita18ba2f10a739e1f0ef31cf0ebd60c8cf95d74f0 (patch)
treefc8d2c573a111dde57169a49157e2b74c90442e8 /NEWS
parentc83f723267dff03e954ba77454d51a691dfba1c0 (diff)
downloadcoreutils-a18ba2f10a739e1f0ef31cf0ebd60c8cf95d74f0.tar.xz
cat,cp,mv,install,split: Set the minimum IO block size used to 64KiB
* NEWS: Mention the change in behavior. * src/ioblksize.h: Add updated test results and increase value from 32KiB to 64KiB.
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+++ b/NEWS
@@ -17,6 +17,10 @@ GNU coreutils NEWS -*- outline -*-
** Changes in behavior
+ cp,mv,install,cat,split: now read and write a minimum of 64KiB at a time.
+ This was previously 32KiB and increasing to 64KiB was seen to increase
+ throughput by about 10% when reading cached files on 64 bit GNU/Linux.
+
cp --attributes-only no longer truncates any existing destination file,
allowing for more general copying of attributes from one file to another.