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what processor need for this?
Use the best one that you have, for reference, my quite old i7 4790 can only do 3.9k P/s (
Passwords per second)
With that, it could take a week to go through all the possible combinations.
Besides, the correct password may be found near the start, mid or last part of the search, so the actual time still depends on luck.
To test your best processor's capability, you can test it with the command:
python btcrecover.py --performance --wallet default_wallet
Make sure that the selected wallet is your actual wallet file or has the same version.
Then make a rough estimate on how long it would take to exhaust all of the possible combinations with that rate.
Take the maximum number of combinations that you can search:
15P
8 plus
15P
9 is equal to 2,075,673,600 combinations.
Let's say that your processor can do 10kP/s which is equal to 10,000 passwords per second, it will take: 2,075,673,600 / 10,000 = 207,567 seconds (
58hours) to exhaust all those combinations.
If you're lucky, you might found it at the first hour or if you're not, right after 57 hours.