Darrel Schneider created GEODE-6676:
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Summary: org.apache.geode.internal.ByteArrayDataInput.readUTF is
not optimal for ASCII strings
Key: GEODE-6676
URL: https://issues.apache.org/jira/browse/GEODE-6676
Project: Geode
Issue Type: Improvement
Components: core
Reporter: Darrel Schneider
org.apache.geode.internal.ByteArrayDataInput.readUTF(), given ASCII bytes,
copies those bytes into a char array. It then allocates a new String with that
char array.
As of jdk 9, java.lang.String will take that char array and copy it back to a
byte array.
We can save a copy by using String(byte[], int, int, int). This does require us
to do a scan to make sure all the byte values are less than 128. As soon as we
see one that is not we can break out of the scan and do the normal utf encode
logic. But if all our Strings are ASCII, this will save a copy and the char
array used for UTF encoding never needs to be allocated.
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