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Daemon: Print estimates for time until fully synced

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This commit is contained in:
rbrunner7 2019-12-27 14:31:13 +01:00
parent d1cf16364f
commit 387fd668d1
4 changed files with 199 additions and 12 deletions
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8
src/cryptonote_protocol/cryptonote_protocol_handler.h
View file

@ -169,6 +169,14 @@ namespace cryptonote
size_t m_block_download_max_size;
bool m_sync_pruned_blocks;
// Values for sync time estimates
boost::posix_time::ptime m_sync_start_time;
boost::posix_time::ptime m_period_start_time;
uint64_t m_sync_start_height;
uint64_t m_period_start_height;
uint64_t get_estimated_remaining_sync_seconds(uint64_t current_blockchain_height, uint64_t target_blockchain_height);
std::string get_periodic_sync_estimate(uint64_t current_blockchain_height, uint64_t target_blockchain_height);
boost::mutex m_buffer_mutex;
double get_avg_block_size();
boost::circular_buffer<size_t> m_avg_buffer = boost::circular_buffer<size_t>(10);

86
src/cryptonote_protocol/cryptonote_protocol_handler.inl
View file

@ -43,6 +43,7 @@
#include "profile_tools.h"
#include "net/network_throttle-detail.hpp"
#include "common/pruning.h"
#include "common/util.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "net.cn"
@ -367,7 +368,7 @@ namespace cryptonote
uint64_t last_block_v1 = m_core.get_nettype() == TESTNET ? 624633 : m_core.get_nettype() == MAINNET ? 1009826 : (uint64_t)-1;
uint64_t diff_v2 = max_block_height > last_block_v1 ? std::min(abs_diff, max_block_height - last_block_v1) : 0;
MCLOG(is_inital ? el::Level::Info : el::Level::Debug, "global", el::Color::Yellow, context << "Sync data returned a new top block candidate: " << m_core.get_current_blockchain_height() << " -> " << hshd.current_height
<< " [Your node is " << abs_diff << " blocks (" << ((abs_diff - diff_v2) / (24 * 60 * 60 / DIFFICULTY_TARGET_V1)) + (diff_v2 / (24 * 60 * 60 / DIFFICULTY_TARGET_V2)) << " days) "
<< " [Your node is " << abs_diff << " blocks (" << tools::get_human_readable_timespan((abs_diff - diff_v2) * DIFFICULTY_TARGET_V1 + diff_v2 * DIFFICULTY_TARGET_V2) << ") "
<< (0 <= diff ? std::string("behind") : std::string("ahead"))
<< "] " << ENDL << "SYNCHRONIZATION started");
if (hshd.current_height >= m_core.get_current_blockchain_height() + 5) // don't switch to unsafe mode just for a few blocks
@ -1158,6 +1159,55 @@ namespace cryptonote
return 1;
}
// Get an estimate for the remaining sync time from given current to target blockchain height, in seconds
template<class t_core>
uint64_t t_cryptonote_protocol_handler<t_core>::get_estimated_remaining_sync_seconds(uint64_t current_blockchain_height, uint64_t target_blockchain_height)
{
// The average sync speed varies so much, even averaged over quite long time periods like 10 minutes,
// that using some sliding window would be difficult to implement without often leading to bad estimates.
// The simplest strategy - always average sync speed over the maximum available interval i.e. since sync
// started at all (from "m_sync_start_time" and "m_sync_start_height") - gives already useful results
// and seems to be quite robust. Some quite special cases like "Internet connection suddenly becoming
// much faster after syncing already a long time, and staying fast" are not well supported however.
if (target_blockchain_height <= current_blockchain_height)
{
// Syncing stuck, or other special circumstance: Avoid errors, simply give back 0
return 0;
}
const boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();
const boost::posix_time::time_duration sync_time = now - m_sync_start_time;
cryptonote::network_type nettype = m_core.get_nettype();
// Don't simply use remaining number of blocks for the estimate but "sync weight" as provided by
// "cumulative_block_sync_weight" which knows about strongly varying Monero mainnet block sizes
uint64_t synced_weight = tools::cumulative_block_sync_weight(nettype, m_sync_start_height, current_blockchain_height - m_sync_start_height);
float us_per_weight = (float)sync_time.total_microseconds() / (float)synced_weight;
uint64_t remaining_weight = tools::cumulative_block_sync_weight(nettype, current_blockchain_height, target_blockchain_height - current_blockchain_height);
float remaining_us = us_per_weight * (float)remaining_weight;
return (uint64_t)(remaining_us / 1e6);
}
// Return a textual remaining sync time estimate, or the empty string if waiting period not yet over
template<class t_core>
std::string t_cryptonote_protocol_handler<t_core>::get_periodic_sync_estimate(uint64_t current_blockchain_height, uint64_t target_blockchain_height)
{
std::string text = "";
const boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();
boost::posix_time::time_duration period_sync_time = now - m_period_start_time;
if (period_sync_time > boost::posix_time::minutes(2))
{
// Period is over, time to report another estimate
uint64_t remaining_seconds = get_estimated_remaining_sync_seconds(current_blockchain_height, target_blockchain_height);
text = tools::get_human_readable_timespan(remaining_seconds);
// Start the new period
m_period_start_time = now;
}
return text;
}
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::try_add_next_blocks(cryptonote_connection_context& context)
{
@ -1186,6 +1236,9 @@ namespace cryptonote
if (!starting)
m_last_add_end_time = tools::get_tick_count();
});
m_sync_start_time = boost::posix_time::microsec_clock::universal_time();
m_sync_start_height = m_core.get_current_blockchain_height();
m_period_start_time = m_sync_start_time;
while (1)
{
@ -1436,7 +1489,16 @@ namespace cryptonote
if (completion_percent == 100) // never show 100% if not actually up to date
completion_percent = 99;
progress_message = " (" + std::to_string(completion_percent) + "%, "
+ std::to_string(target_blockchain_height - current_blockchain_height) + " left)";
+ std::to_string(target_blockchain_height - current_blockchain_height) + " left";
std::string time_message = get_periodic_sync_estimate(current_blockchain_height, target_blockchain_height);
if (!time_message.empty())
{
uint64_t total_blocks_to_sync = target_blockchain_height - m_sync_start_height;
uint64_t total_blocks_synced = current_blockchain_height - m_sync_start_height;
progress_message += ", " + std::to_string(total_blocks_synced * 100 / total_blocks_to_sync) + "% of total synced";
progress_message += ", estimated " + time_message + " left";
}
progress_message += ")";
}
const uint32_t previous_stripe = tools::get_pruning_stripe(previous_height, target_blockchain_height, CRYPTONOTE_PRUNING_LOG_STRIPES);
const uint32_t current_stripe = tools::get_pruning_stripe(current_blockchain_height, target_blockchain_height, CRYPTONOTE_PRUNING_LOG_STRIPES);
@ -2174,8 +2236,26 @@ skip:
bool t_cryptonote_protocol_handler<t_core>::on_connection_synchronized()
{
bool val_expected = false;
if(!m_core.is_within_compiled_block_hash_area(m_core.get_current_blockchain_height()) && m_synchronized.compare_exchange_strong(val_expected, true))
uint64_t current_blockchain_height = m_core.get_current_blockchain_height();
if(!m_core.is_within_compiled_block_hash_area(current_blockchain_height) && m_synchronized.compare_exchange_strong(val_expected, true))
{
if ((current_blockchain_height > m_sync_start_height) && (m_sync_spans_downloaded > 0))
{
uint64_t synced_blocks = current_blockchain_height - m_sync_start_height;
// Report only after syncing an "interesting" number of blocks:
if (synced_blocks > 20)
{
const boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();
uint64_t synced_seconds = (now - m_sync_start_time).total_seconds();
if (synced_seconds == 0)
{
synced_seconds = 1;
}
float blocks_per_second = (1000 * synced_blocks / synced_seconds) / 1000.0f;
MGINFO_YELLOW("Synced " << synced_blocks << " blocks in "
<< tools::get_human_readable_timespan(synced_seconds) << " (" << blocks_per_second << " blocks per second)");
}
}
MGINFO_YELLOW(ENDL << "**********************************************************************" << ENDL
<< "You are now synchronized with the network. You may now start monero-wallet-cli." << ENDL
<< ENDL