EstablishEncryption () Huge Memory allocations

kamend

Hi,
I noticed that the first time Photon Connects, it makes couple of calls to PhotonPeer.EstablishEnryption() and everytime that call takes a lot of time and memory allocations. Is it possible to add some kind of a cache, so it does not take around 3mb+ every time Photon connects.

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Thanks

kamend

Actually the big memory allocations comes from: DiffieHellmanCryptoProvider.CalculatePublicKey(), may be you don't have to call this more than once?

Tobias

3MB? It looks more like 0.6MB...

It needs to be called once per server-switch. On NameServer, MasterServer and GameServer.
I can take a look if we can optimize this but it's called rarely, so we didn't put stress on it.

Did you deep profile this?

kamend

Well, I am saying around 3mb, because on establishing connection and joining a room, there are around 5 calls that use BigInteger.ModPow() .

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Tobias

I will see if I can do something.
In worst case, if you don't use encryption in your code, we could skip this on some servers. The client gets a Token from the servers, so it can switch between Photon instances without additional encryption...

Tobias

I couldn't find a good way to pool memory in the BigInteger implementation we use.
As said, we could possibly skip establishing encryption on some servers if this is really a problem.