ivandasch commented on a change in pull request #105:
URL: https://github.com/apache/ignite-3/pull/105#discussion_r619347727
##########
File path:
modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java
##########
@@ -167,4 +167,63 @@ public static int hash(long key) {
return hash(val);
}
+
+ /**
+ * Constructs {@code long} from byte array.
+ *
+ * @param bytes Array of bytes.
+ * @param off Offset in {@code bytes} array.
+ * @return Long value.
+ */
+ public static long bytesToLong(byte[] bytes, int off) {
Review comment:
```
Benchmark Mode Cnt Score Error Units
BytesLongBenchmark.bytesToLongByteBuffer avgt 10 4.173 ± 0.168 ns/op
BytesLongBenchmark.bytesToLongCycle avgt 10 6.716 ± 0.137 ns/op
BytesLongBenchmark.bytesToLongUnroll avgt 10 6.476 ± 0.166 ns/op
BytesLongBenchmark.bytesToLongVarHandle avgt 10 4.879 ± 0.190 ns/op
BytesLongBenchmark.longToBytesByteBuffer avgt 10 7.691 ± 0.245 ns/op
BytesLongBenchmark.longToBytesCycle avgt 10 10.436 ± 0.386 ns/op
BytesLongBenchmark.longToBytesUnroll avgt 10 9.716 ± 0.380 ns/op
BytesLongBenchmark.longToBytesVarHandle avgt 10 7.779 ± 0.205 ns/op
```
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