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tweak io block size in FileUtils.appendTo(), referencing performance metrics documented in gnu coreutils (used e.g. for /bin/cat)

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Noah Levitt
2013-09-08 12:41:48 -07:00
parent 254811ff7f
commit 140ba3e89e
1 changed files with 2 additions and 1 deletions
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commons/src/main/java/org/archive/util/FileUtils.java
+2 -1
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@@ -698,7 +698,8 @@ public class FileUtils {
}
public static void appendTo(File fileToAppendTo, File fileToAppendFrom) throws IOException {
byte[] buf = new byte[4096];
// optimal io block size according to http://lingrok.org/xref/coreutils/src/ioblksize.h
byte[] buf = new byte[65536];
FileOutputStream out = new FileOutputStream(fileToAppendTo, true);
FileInputStream in = new FileInputStream(fileToAppendFrom);
for (int n = in.read(buf); n > 0; n = in.read(buf)) {