In the last several days, the trading volume on bitcoin remains record-breaking high and is at the level of $20 billion. Grows and мемпул bitcoin.

In the Bitcoin network mempool works as the place where unconfirmed transactions are stored.  The payments made by users wait for in the mempool until mayner confirm transactions.

If the size bitcoin of a mempool big, the transaction collecting recommended by purses, such as Blockchain, Coinbase and Trezor grows respectively, and the inability to offer a competitive payment for transaction leads to the fact that transaction can be confirmed within several days or until mempool it isn't cleaned.

On December 7 the size bitcoin of a mempool reached 120 million Bytes, having increased more than twice in 24 hours. As a result, the transaction collecting recommended by purses grew to 30 US dollars depending on the amount of transaction.

Nick Carter, the skilled analyst and the researcher bitcoin, said that the sharp splash in the size bitcoin-mempool is suspicious, considering, the number of transactions with the sum in one satoshi.

Carter has assumed that it is result spam of the attack in which transactions for which confirmation it is offered insufficient commission charges participate.

There is also an alternative opinion which is that the size of a mempool has grown thanks to the sharp growth of popularity of bitcoin that, respectively, has led to the sharp growth of number of transactions in network.

For transactions of the small and average size the current commission charges can be too high, especially for dealers. Therefore, Steam, one of the most popular game markets, has temporarily stopped accepting bitcoin as a payment method because of the growing complaints from the users about high commission charges.

For large-scale transactions for the sum from several thousand dollars up to millions dollars the transaction more than 10 US dollars in size commission is rather small in comparison with a global banking system. As one of founders of BlockTower Arie Paul has told in Business Insider interview, the current use of bitcoin makes him by the strong competitor to gold and the international offshore bank branch, considering complexity and efficiency of banking services.