Github user StephanEwen commented on the pull request:
https://github.com/apache/incubator-flink/pull/4#issuecomment-46468521
That is very nice progress! And I think the numbers are good, actually.
I was wondering whether it is possible to modify the encoding such that the comparison loop could still be something like:
```
byte[] bytes1 = ...;
byte[] bytes2 = ...;
int len = min(bytes1.length, bytes2.length);
int cmp = 0;
for (int pos = 0; pos < len && (cmp = (bytes1[pos] & 0xff) - (bytes2[pos] & 0xff)) == 0; pos++);
```
That would allow us to push the comparisons into the memory segments (eventually doing something like a memcmp()) and avoid repeatedly grabbing individual bytes.
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