AqlaSolutions
commented
8 years ago Originally protobuf-net supports only one-dimensional arrays:
http://stackoverflow.com/questions/16174558/how-do-you-serialize-deserialize-jagged-nested-arrays-with-protobuf-net http://stackoverflow.com/questions/22023405/protobuf-with-multidimensional-array http://stackoverflow.com/questions/4090173/using-protobuf-net-how-to-deserialize-a-multi-dimensional-array
I didn't change this in AqlaSerializer.
- You can try to use short[][] - an array of arrays. It will still have some overhead because each "sub-array" is serialized as reference-tracked object.
- You can follow one of the answers on SO above.
Your example code even should throw NotSupportedException, I found this test in the project:
[Test, ExpectedException(typeof(NotSupportedException))]
public void TestMultidimArray()
{
MultiDim md = new MultiDim { Values = new int[1, 2] { { 3, 4 } } };
Serializer.DeepClone(md);
}
ab-tools
I've tried to use AqlaSerializer for serializing a bigger 2-dimensional array of shorts simply like:
With an array size of 7,201 * 21,601 = 155,548,801 elements of shorts with each element using 2 bytes I would have expected a file size of 311,097,602 bytes plus a little bit overhead for the serialization information. But I was shocked about the resulting file having 1,369,649,462 bytes which is more than 4 times as much as the stored data itself needs!
What's the reason for this extremely high AqlaSerializer footprint? Is there a way to improve this?
Of course, I could serialize/deserialize such a structure very easily myself without AqlaSerializer, but as this array is part of a bigger structure where I do use AqlaSerializer already, it would be great if I could serialize/deserialize everything with AqlaSerializer.
Best regards and thanks in advance Andreas