Speedup CleanFilter by transferring data in chunks of 8k
Transferring data byte per byte is slow, running add with CleanFilter on a 2.9MB file takes 20 seconds. Using a buffer of 8k shrinks this time to 70ms. Change-Id: I3bc2d8c11fe6cfaffcc99dc2a00643e01ac4e9cc Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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@ -141,11 +141,12 @@ public CleanFilter(Repository db, InputStream in, OutputStream out)
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public int run() throws IOException {
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try {
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int b = in.read();
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if (b != -1) {
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dOut.write(b);
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size++;
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return 1;
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byte[] buf = new byte[8192];
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int length = in.read(buf);
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if (length != -1) {
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dOut.write(buf, 0, length);
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size += length;
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return length;
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} else {
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dOut.close();
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tmpOut.close();
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