请教下关于联合挖矿触发新任务下发的算力损失问题

[DebugFuture]

文档里建议当联合挖矿有新任务的时候，触发新的任务下发。请问下矿机在切换任务的时候，一般会损失多少的算力，可以忽略不计吗？因为联合挖矿的币种币价比较便宜，这样切换任务是否划算？

# policy used to determine the pace of merge mining jobs to be sent.
# 0: merge mining `getwork` does not trigger job updates.
# 1: update job when the `notify` flag in RSK `getwork` is true or the block height in Namecoin/VCash `getwork` higher than before.
# 2: update job when the current block hash of a merge mining `getwork` is different from before.
aux_merged_mining_notify = 1; # (1 is recommended and default)
rsk_merged_mining_notify = 1; # (1 is recommended and default)
vcash_merged_mining_notify = 1; # (1 is recommended and default)

[duguyifang]

联合挖矿触发的任务更新并不会要求矿机立即切换任务。只是尽可能将最新的联合挖矿任务下发给矿机，在矿机进行正常的任务切换时，能够及时处理包含最新联合挖矿任务的任务。需要考虑的是联合挖矿任务更新过快可能导致用户矿场网络堵塞，拒绝率升高。

[DebugFuture]

如果aux_merged_mining_notify设置为1，那么联合挖矿的高度更新时，是会通知矿机立马下发新任务的？

bool higherHeightUpdate = def()->auxmergedMiningNotifyPolicy_ == 1 &&
      currentNmcBlockHeight > latestNmcAuxBlockHeight;

bool isMergedMiningUpdate = higherHeightUpdate || differentHashUpdate;
  if (isMergedMiningUpdate) {
    isMergedMiningUpdate_ = true;
  }

// for Namecoin and RSK merged mining
isMergedMiningCleanJob_ = isMergedMiningUpdate;

bool isMergedMiningClean =
      sjob->isMergedMiningCleanJob_ && height >= lastHeight_;

// if job has clean flag, call server to send job
if (isClean || isMergedMiningClean) {
  sendMiningNotify(exJob);
  return;
}

[DebugFuture]

想通了，联合挖矿的高度只要不是频繁的更新，配置为1应该没什么影响。