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Odd choke/unchoke behaviour


alanmc

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Posted

Hi,

I was just monitoring peer messaging in my client and i noticed this odd behavior from uTorrent. The list is the order in which messages where sent/received from my client. The messages on the left are ones that i sent, the messages on the right (the indented ones) are ones i received:

Example 1: Choke/Unchoke/Choke one after another. Ive seen this quite a few times

Connecting

Connected

handshake

Handshake: -UT1600-??s????????P

Bitfield

BitfieldMessage

HaveMessage

InterestedMessage

UnChokeMessage

RequestMessage

RequestMessage

RequestMessage

RequestMessage

RequestMessage

RequestMessage

PieceMessage

RequestMessage

PieceMessage

RequestMessage

PieceMessage

PieceMessage

PieceMessage

PieceMessage

PieceMessage

ChokeMessage

UnChokeMessage

ChokeMessage

Example 2: Choking as soon as i request a piece. I've seen quite a few times aswell (>5)

Connecting

Connected

handshake

Handshake: -UT1600-??d?B4???

Bitfield

BitfieldMessage

InterestedMessage

UnChokeMessage

RequestMessage

ChokeMessage

Posted

I have seen where I should be able and actively uploading to peers, as I have spare bandwidth and they do not seem particularly active...and yet I am either not uploading at all or am uploading at far less than max upload rate.

This is particularly bad if I set upload slots to 1 or 2, as the optimistic unchoke seems to be very slow at ramping up to speed.

  • 4 weeks later...

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