Estimate P2P Success Rate

This commit is contained in:
Adam Ierymenko 2019-09-03 15:19:17 -07:00
parent a7d8285c3a
commit 1f9456a462
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GPG key ID: C8877CF2D7A5D7F3

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@ -163,6 +163,21 @@ struct RootPeer
AtomicCounter __refCount;
};
struct RendezvousStats
{
RendezvousStats() : count(0),ts(0) {}
int64_t count;
int64_t ts;
};
struct ForwardingStats
{
ForwardingStats() : bytes(0),ts(0),bps() {}
uint64_t bytes;
int64_t ts;
Meter bps;
};
static int64_t s_startTime; // Time service was started
static std::vector<int> s_ports; // Ports to bind for UDP traffic
static int s_relayMaxHops = 0; // Max relay hops
@ -183,7 +198,8 @@ static std::unordered_map< uint64_t,std::unordered_map< MulticastGroup,std::unor
static std::unordered_map< Identity,SharedPtr<RootPeer>,IdentityHasher > s_peersByIdentity;
static std::unordered_map< Address,std::set< SharedPtr<RootPeer> >,AddressHasher > s_peersByVirtAddr;
static std::unordered_map< InetAddress,std::set< SharedPtr<RootPeer> >,InetAddressHasher > s_peersByPhysAddr;
static std::unordered_map< RendezvousKey,int64_t,RendezvousKey::Hasher > s_lastSentRendezvous;
static std::unordered_map< RendezvousKey,RendezvousStats,RendezvousKey::Hasher > s_lastSentRendezvous;
static std::unordered_map< Address,ForwardingStats,AddressHasher > s_lastForwardedTo;
static std::mutex s_planet_l;
static std::mutex s_siblings_l;
@ -192,6 +208,7 @@ static std::mutex s_peersByIdentity_l;
static std::mutex s_peersByVirtAddr_l;
static std::mutex s_peersByPhysAddr_l;
static std::mutex s_lastSentRendezvous_l;
static std::mutex s_lastForwardedTo_l;
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
@ -481,9 +498,10 @@ static void handlePacket(const int v4s,const int v6s,const InetAddress *const ip
if (hops == 1) {
RendezvousKey rk(source,dest);
std::lock_guard<std::mutex> l(s_lastSentRendezvous_l);
int64_t &lr = s_lastSentRendezvous[rk];
if ((now - lr) >= 45000) {
lr = now;
RendezvousStats &lr = s_lastSentRendezvous[rk];
if ((now - lr.ts) >= 30000) {
++lr.count;
lr.ts = now;
introduce = true;
}
}
@ -520,6 +538,14 @@ static void handlePacket(const int v4s,const int v6s,const InetAddress *const ip
return;
}
{
std::lock_guard<std::mutex> l(s_lastForwardedTo_l);
ForwardingStats &fs = s_lastForwardedTo[dest];
fs.bytes += (uint64_t)pkt.size();
fs.ts = now;
fs.bps.log(now,pkt.size());
}
if (introduce) {
std::lock_guard<std::mutex> l(s_peersByVirtAddr_l);
auto sources = s_peersByVirtAddr.find(source);
@ -1087,15 +1113,25 @@ int main(int argc,char **argv)
}
}
// Remove old rendezvous tracking entries
// Remove old rendezvous and last forwarded tracking entries
{
std::lock_guard<std::mutex> l(s_lastSentRendezvous_l);
for(auto lr=s_lastSentRendezvous.begin();lr!=s_lastSentRendezvous.end();) {
if ((now - lr->second) > ZT_PEER_ACTIVITY_TIMEOUT)
if ((now - lr->second.ts) > ZT_PEER_ACTIVITY_TIMEOUT)
s_lastSentRendezvous.erase(lr++);
else ++lr;
}
}
// Remove old last forwarded tracking entries
{
std::lock_guard<std::mutex> l(s_lastForwardedTo_l);
for(auto lf=s_lastForwardedTo.begin();lf!=s_lastForwardedTo.end();) {
if ((now - lf->second.ts) > ZT_PEER_ACTIVITY_TIMEOUT)
s_lastForwardedTo.erase(lf++);
else ++lf;
}
}
}
// Write stats if configured to do so, and periodically refresh planet file (if any)
@ -1168,13 +1204,23 @@ int main(int argc,char **argv)
fprintf(sf,"Physical Endpoints : %llu" ZT_EOL_S,(unsigned long long)s_peersByPhysAddr.size());
s_peersByPhysAddr_l.unlock();
s_lastSentRendezvous_l.lock();
uint64_t unsuccessfulp2p = 0;
for(auto lr=s_lastSentRendezvous.begin();lr!=s_lastSentRendezvous.end();++lr) {
if (lr->second.count > 3)
++unsuccessfulp2p;
}
fprintf(sf,"Recent P2P Graph Edges : %llu" ZT_EOL_S,(unsigned long long)s_lastSentRendezvous.size());
if (s_lastSentRendezvous.empty()) {
fprintf(sf,"Estimated P2P Success Rate : 100.0000%%" ZT_EOL_S);
} else {
fprintf(sf,"Estimated P2P Success Rate : %.4f%%" ZT_EOL_S,(1.0 - ((double)unsuccessfulp2p / (double)s_lastSentRendezvous.size())) * 100.0);
}
s_lastSentRendezvous_l.unlock();
fprintf(sf,"Input BPS : %.4f" ZT_EOL_S,s_inputRate.perSecond(now));
fprintf(sf,"Output BPS : %.4f" ZT_EOL_S,s_outputRate.perSecond(now));
fprintf(sf,"Forwarded BPS : %.4f" ZT_EOL_S,s_forwardRate.perSecond(now));
fprintf(sf,"Sibling Forwarded BPS : %.4f" ZT_EOL_S,s_siblingForwardRate.perSecond(now));
fprintf(sf,"Discarded Forward BPS : %.4f" ZT_EOL_S,s_discardedForwardRate.perSecond(now));
fprintf(sf,"Input (MiB/s) : %.4f" ZT_EOL_S,s_inputRate.perSecond(now) / 1048576.0);
fprintf(sf,"Output (MiB/s) : %.4f" ZT_EOL_S,s_outputRate.perSecond(now) / 1048576.0);
fprintf(sf,"Forwarded (MiB/s) : %.4f" ZT_EOL_S,s_forwardRate.perSecond(now) / 1048576.0);
fprintf(sf,"Sibling Forwarded (MiB/s) : %.4f" ZT_EOL_S,s_siblingForwardRate.perSecond(now) / 1048576.0);
fprintf(sf,"Discarded Forward (MiB/s) : %.4f" ZT_EOL_S,s_discardedForwardRate.perSecond(now) / 1048576.0);
fclose(sf);
std::string statsFilePath2(s_statsRoot);