Show hashrate estimate in status

src/block_template.cpp

@@ -51,6 +51,7 @@ BlockTemplate::BlockTemplate(p2pool* pool)
 	, m_seedHash{}
 	, m_timestamp(0)
 	, m_poolBlockTemplate(new PoolBlock())
+	, m_finalReward(0)
 	, m_nextPayout(0)
 {
 	uv_rwlock_init_checked(&m_lock);
@@ -121,6 +122,7 @@ BlockTemplate& BlockTemplate::operator=(const BlockTemplate& b)
 	m_txkeyPub = b.m_txkeyPub;
 	m_txkeySec = b.m_txkeySec;
 	*m_poolBlockTemplate = *b.m_poolBlockTemplate;
+	m_finalReward = b.m_finalReward;
 	m_nextPayout = b.m_nextPayout;
 
 	m_minerTx.clear();
@@ -414,6 +416,7 @@ void BlockTemplate::update(const MinerData& data, const Mempool& mempool, Wallet
 		return;
 	}
 
+	m_finalReward = final_reward;
 	m_nextPayout = 0;
 	for (size_t i = 0, n = m_shares.size(); i < n; ++i) {
 		if (*m_shares[i].m_wallet == m_pool->params().m_wallet) {

src/block_template.h

@@ -54,6 +54,7 @@ public:
 
 	void submit_sidechain_block(uint32_t template_id, uint32_t nonce, uint32_t extra_nonce);
 
+	FORCEINLINE uint64_t final_reward() const { return m_finalReward; }
 	FORCEINLINE uint64_t next_payout() const { return m_nextPayout; }
 
 private:
@@ -95,6 +96,7 @@ private:
 
 	BlockTemplate* m_oldTemplates[4] = {};
 
+	uint64_t m_finalReward;
 	uint64_t m_nextPayout;
 
 	// Temp vectors, will be cleaned up after use and skipped in copy constructor/assignment operators

src/log.h

@@ -308,6 +308,12 @@ template<> struct log::Stream::Entry<Hashrate>
 
 		static constexpr const char* units[] = { "H/s", "KH/s", "MH/s", "GH/s", "TH/s", "PH/s", "EH/s" };
 
+		int n;
+		char buf[32];
+		if (value.m_data < 1000) {
+			n = snprintf(buf, sizeof(buf), "%u %s", static_cast<uint32_t>(value.m_data), units[0]);
+		}
+		else {
 			size_t k = 0;
 			double magnitude = 1.0;
 
@@ -316,8 +322,9 @@ template<> struct log::Stream::Entry<Hashrate>
 				++k;
 			}
 
-		char buf[32];
+			n = snprintf(buf, sizeof(buf), "%.3f %s", x / magnitude, units[k]);
-		int n = snprintf(buf, sizeof(buf), "%.3f %s", x / magnitude, units[k]);
+		}
+
 		if (n > 0) {
 			if (n > static_cast<int>(sizeof(buf)) - 1) {
 				n = static_cast<int>(sizeof(buf)) - 1;

src/side_chain.cpp

@@ -615,14 +615,22 @@ void SideChain::print_status()
 		}
 	}
 
+	const uint64_t block_reward = m_pool->block_template().final_reward();
+	const uint64_t next_payout = m_pool->block_template().next_payout();
+
+	uint64_t product[2];
+	product[0] = umul128(pool_hashrate, next_payout, &product[1]);
+	const uint64_t hashrate_est = udiv128(product[1], product[0], block_reward, &rem);
+
 	LOGINFO(0, "status" <<
 		"\nMain chain height   = " << m_pool->block_template().height() <<
 		"\nMain chain hashrate = " << log::Hashrate(network_hashrate) <<
 		"\nSide chain height   = " << tip_height + 1 <<
 		"\nSide chain hashrate = " << log::Hashrate(pool_hashrate) <<
+		"\nYour hashrate (est) = " << log::Hashrate(hashrate_est) <<
 		"\nPPLNS window        = " << total_blocks_in_window << " blocks (+" << total_uncles_in_window << " uncles, " << total_orphans << " orphans)"
 		"\nYour shares         = " << our_blocks_in_window << " blocks (+" << our_uncles_in_window << " uncles, " << our_orphans << " orphans)"
-		"\nNext payout         = " << log::XMRAmount(m_pool->block_template().next_payout())
+		"\nNext payout         = " << log::XMRAmount(next_payout)
 	);
 }