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Cap nAttempts penalty at 8 and switch to pow instead of a division loop.

On hosts that had spent some time with a failed internet connection their
 nAttempts penalty was going through the roof (e.g. thousands for all peers)
 and as a result the connect search was pegging the CPU and failing to get
 more than a 4 connections after days of running (because it was taking so
 long per try).
0.13
Gregory Maxwell 10 years ago
parent
commit
a784f90c98
  1. 5
      src/addrman.cpp

5
src/addrman.cpp

@ -67,9 +67,8 @@ double CAddrInfo::GetChance(int64_t nNow) const @@ -67,9 +67,8 @@ double CAddrInfo::GetChance(int64_t nNow) const
if (nSinceLastTry < 60 * 10)
fChance *= 0.01;
// deprioritize 50% after each failed attempt
for (int n = 0; n < nAttempts; n++)
fChance /= 1.5;
// deprioritize 66% after each failed attempt, but at most 1/28th to avoid the search taking forever or overly penalizing outages.
fChance *= pow(0.66, min(nAttempts, 8));
return fChance;
}

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