This is node specific, e.g. blockchain.info[1], my new[2] and my old[3] node disagree on the number of unconfirmed transactions. It depends on the configuration of the node and the amount of memory you allow transactions to take. Another factor is uptime. Keep in mind that "usage" is not the sum of all TX sizes, is the amount of memory used. I dont track bytes separately though.
{
"size": 17469,
"bytes": 224345760,
"usage": 481174672,
"maxmempool": 1000000000,
"mempoolminfee": 0.00000000
}
[1]
https://blockchain.info/en/unconfirmed-transactions[2]
http://188.68.53.44/[3]
http://213.165.91.169/Yes, of course it is node specific. But from the pragmatic point of view it is most important to know which unconfirmed TA
W I L L be included into the blockchain. I'm afraid this is undefined. :-/ There are still dozends of 0-fee TAs included a day, but e.g. my
two TAs were deleted/forgotten. I'm even not sure whether also non-0-fee TAs were/are forgotten which were/are totally valid.
At least it would be very helpful to have a probability whether a given TA will be included into the blockchain.
http://bitcoinfees.21.co/ seems to be of no help to this last question, isn't it?
Regards
achim