Github user zentol commented on the pull request:
https://github.com/apache/incubator-flink/pull/4#issuecomment-46012075
the new serialization seems to take longer, but broke even due to faster deserialization.
some comparison benchmarks:
strings of length 90
1000 repetitions
code for New measurement:
```
long startTime = System.nanoTime();
cmp = StringValue.compareUnicode(in1, in2);
long endTime = System.nanoTime();
```
code for Old measurement:
```
long startTime = System.nanoTime();
cmp = StringValue.readString(in1).compareTo(StringValue.readString(in2));
long endTime = System.nanoTime();
```
result = SUM(endTime - startTime) / 1000
equality
New 26627
Old 25782
affix (difference in the beginning of the sring)
New 4259
Old 23431
infix (difference in the middle of the string)
New 13560
Old 30757
suffix (difference at the end of the string)
New 29385
Old 28293
not particularly surprising results. no progress on the prefix-issue :/
adding some more tests now.
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