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If I do a transaction with my 2.6GHz laptop it last quite a long time in the status "sending" (1-3minutes). I know that it is because of the power of work that has to be done. But is the time always the same with the same operation system, or does it depend on something else?

  • ok I changed the question – Vrom Dec 10 '17 at 9:57
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The time of PoW depends on

  • The number of transactions your bundle contains (so if you are sending to multiple recipients or are using multisig addresses, more transactions need to be signed)
  • The Min Weight Magnitude configured in your settings - it should be 14 (or you will waste time doing more PoW than needed)
  • Whether or not you can use your GPU to do the POW (GPU is usually faster than CPU). This depends on your OS and/or your graphics drivers.
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    There is also a random factor in that the PoW just takes an unknown amount of tries. Sometimes your computer just guesses correct on the first try. – Spamalot Dec 13 '17 at 10:43
  • @user630: Very good point, PoW is probabilistic. – mihi Dec 13 '17 at 19:09

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