streamers / measures.c @ 19d6b4ca
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#include <math.h> |
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#ifndef NAN //NAN is missing in some old math.h versions |
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#define NAN (0.0/0.0) |
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#endif
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#ifndef INFINITY
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#define INFINITY (1.0/0.0) |
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#endif
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#include <mon.h> |
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#include <ml.h> |
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#include "channel.h" |
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#include "dbg.h" |
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#include <net_helper.h> |
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typedef struct nodeID { |
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socketID_handle addr; |
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int connID; // connection associated to this node, -1 if myself |
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int refcnt;
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//a quick and dirty static vector for measures TODO: make it dinamic
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MonHandler mhs[20];
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int n_mhs;
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} nodeID; |
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static MonHandler chunk_dup, chunk_playout, neigh_size, chunk_receive, chunk_send, offer_accept, chunk_hops, chunk_delay, playout_delay;
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static MonHandler rx_bytes_chunk_per_sec, tx_bytes_chunk_per_sec, rx_bytes_sig_per_sec, tx_bytes_sig_per_sec;
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static MonHandler rx_chunks, tx_chunks;
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/*
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* Initialize one measure
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*/
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void add_measure(MonHandler *mh, MeasurementId id, MeasurementCapabilities mc, MonParameterValue rate, const char *pubname, enum stat_types st[], int length, SocketId dst, MsgType mt) |
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{ |
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*mh = monCreateMeasure(id, mc); |
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monSetParameter (*mh, P_PUBLISHING_RATE, rate); |
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monPublishStatisticalType(*mh, pubname, channel_get_name(), st , length, NULL);
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monActivateMeasure(*mh, dst, mt); |
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} |
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/*
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* Register duplicate arrival
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*/
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void reg_chunk_duplicate()
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{ |
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if (!chunk_dup) {
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enum stat_types st[] = {SUM, RATE};
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add_measure(&chunk_dup, GENERIC, 0, 120, "ChunkDuplicates", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[chunks] |
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monNewSample(chunk_dup, 0); //force publish even if there are no events |
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} |
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monNewSample(chunk_dup, 1);
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} |
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/*
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* Register playout/loss of a chunk before playout
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*/
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void reg_chunk_playout(int id, bool b, uint64_t timestamp) |
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{ |
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struct timeval tnow;
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if (!chunk_playout && b) { //don't count losses before the first arrived chunk |
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enum stat_types st[] = {AVG, SUM, RATE};
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add_measure(&chunk_playout, GENERIC, 0, 120, "ChunksPlayed", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[chunks] |
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} |
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monNewSample(chunk_playout, b); |
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if (!playout_delay) {
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enum stat_types st[] = {WIN_AVG, WIN_VAR};
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add_measure(&playout_delay, GENERIC, 0, 120, "PlayoutDelay", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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} |
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gettimeofday(&tnow, NULL);
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monNewSample(playout_delay, tnow.tv_usec + tnow.tv_sec * 1000000ULL - timestamp);
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} |
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/*
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* Register actual neghbourhood size
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*/
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void reg_neigh_size(int s) |
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{ |
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if (!neigh_size) {
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enum stat_types st[] = {LAST};
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add_measure(&neigh_size, GENERIC, 0, 120, "NeighSize", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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} |
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monNewSample(neigh_size, s); |
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} |
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/*
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* Register chunk receive event
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*/
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void reg_chunk_receive(int id, uint64_t timestamp, int hopcount) |
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{ |
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struct timeval tnow;
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if (!chunk_receive) {
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enum stat_types st[] = {RATE};
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add_measure(&chunk_receive, GENERIC, 0, 120, "RxChunkAll", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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monNewSample(chunk_receive, 0); //force publish even if there are no events |
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} |
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monNewSample(chunk_receive, 1);
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if (!chunk_hops) {
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enum stat_types st[] = {WIN_AVG, WIN_VAR};
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add_measure(&chunk_hops, GENERIC, 0, 120, "Hops", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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} |
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monNewSample(chunk_hops, hopcount); |
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if (!chunk_delay) {
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enum stat_types st[] = {WIN_AVG, WIN_VAR};
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add_measure(&chunk_delay, GENERIC, 0, 120, "ReceiveDelay", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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} |
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gettimeofday(&tnow, NULL);
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monNewSample(chunk_delay, tnow.tv_usec + tnow.tv_sec * 1000000ULL - timestamp);
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} |
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/*
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* Register chunk send event
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*/
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void reg_chunk_send(int id) |
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{ |
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if (!chunk_send) {
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enum stat_types st[] = {RATE};
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add_measure(&chunk_send, GENERIC, 0, 120, "TxChunkAll", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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monNewSample(chunk_send, 0); //force publish even if there are no events |
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} |
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monNewSample(chunk_send, 1);
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} |
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/*
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* Register chunk accept evemt
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*/
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void reg_offer_accept(bool b) |
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{ |
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if (!offer_accept) {
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enum stat_types st[] = {AVG};
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add_measure(&offer_accept, GENERIC, 0, 120, "OfferAccept", st, sizeof(st)/sizeof(enum stat_types), NULL, MSG_TYPE_ANY); //[peers] |
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} |
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monNewSample(offer_accept, b); |
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} |
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/*
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* Initialize peer level measurements
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*/
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void init_measures()
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{ |
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enum stat_types stavg[] = {WIN_AVG};
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enum stat_types stsum[] = {SUM};
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// Traffic
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add_measure(&rx_bytes_chunk_per_sec, BULK_TRANSFER, RXONLY | PACKET | TIMER_BASED, 120, "RxBytesChunkPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), NULL, MSG_TYPE_CHUNK); //[bytes/s] |
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add_measure(&tx_bytes_chunk_per_sec, BULK_TRANSFER, TXONLY | PACKET | TIMER_BASED, 120, "TxBytesChunkPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), NULL, MSG_TYPE_CHUNK); //[bytes/s] |
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add_measure(&rx_bytes_sig_per_sec, BULK_TRANSFER, RXONLY | PACKET | TIMER_BASED, 120, "RxBytesSigPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), NULL, MSG_TYPE_SIGNALLING); //[bytes/s] |
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add_measure(&tx_bytes_sig_per_sec, BULK_TRANSFER, TXONLY | PACKET | TIMER_BASED, 120, "TxBytesSigPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), NULL, MSG_TYPE_SIGNALLING); //[bytes/s] |
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// Chunks
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// replaced by reg_chun_receive add_measure(&rx_chunks, COUNTER, RXONLY | DATA | IN_BAND, 120, "RxChunksAll", stsum, sizeof(stsum)/sizeof(enum stat_types), NULL, MSG_TYPE_CHUNK); //[chunks]
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// replaced by reg_chun_send add_measure(&tx_chunks, COUNTER, TXONLY | DATA | IN_BAND, 120, "TxChunksAll", stsum, sizeof(stsum)/sizeof(enum stat_types), NULL, MSG_TYPE_CHUNK); //[chunks]
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} |
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/*
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* Initialize p2p measurements towards a peer
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*/
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void add_measures(struct nodeID *id) |
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{ |
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// Add measures
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int j = 0; |
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enum stat_types stavg[] = {AVG};
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enum stat_types stwinavg[] = {WIN_AVG};
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enum stat_types stsum[] = {SUM};
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enum stat_types stsumrate[] = {SUM, RATE};
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dprintf("adding measures to %s\n",node_addr(id));
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/* HopCount */
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add_measure(&id->mhs[j++], HOPCOUNT, TXRXUNI | PACKET | IN_BAND, 120, "HopCount", stwinavg, sizeof(stwinavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //[IP hops] |
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/* Round Trip Time */
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add_measure(&id->mhs[j++], RTT, TXRXBI | PACKET | IN_BAND, 120, "RoundTripDelay", stwinavg, sizeof(stwinavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_SIGNALLING); //[seconds] |
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/* Loss */
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add_measure(&id->mhs[j++], LOSS, TXRXUNI | PACKET | IN_BAND, 120, "LossRate", stwinavg, sizeof(stwinavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //LossRate_avg [probability 0..1] LossRate_rate [lost_pkts/sec] |
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// Cumulative Traffic
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//add_measure(&id->mhs[j++], BYTE, RXONLY | PACKET | IN_BAND, 120, "RxBytes", stsum, sizeof(stsum)/sizeof(enum stat_types), id->addr, MSG_TYPE_ANY);
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//add_measure(&id->mhs[j++], BYTE, TXONLY | PACKET | IN_BAND, 120, "TxBytes", stsum, sizeof(stsum)/sizeof(enum stat_types), id->addr, MSG_TYPE_ANY);
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add_measure(&id->mhs[j++], BYTE, RXONLY | PACKET | IN_BAND, 120, "RxBytesChunk", stsum, sizeof(stsum)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //[bytes] |
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add_measure(&id->mhs[j++], BYTE, TXONLY | PACKET | IN_BAND, 120, "TxBytesChunk", stsum, sizeof(stsum)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //[bytes] |
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// Traffic
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add_measure(&id->mhs[j++], BULK_TRANSFER, RXONLY | PACKET | TIMER_BASED, 120, "RxBytesChunkPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //[bytes/s] |
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add_measure(&id->mhs[j++], BULK_TRANSFER, TXONLY | PACKET | TIMER_BASED, 120, "TxBytesChunkPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //[bytes/s] |
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add_measure(&id->mhs[j++], BULK_TRANSFER, RXONLY | PACKET | TIMER_BASED, 120, "RxBytesSigPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_SIGNALLING); //[bytes/s] |
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add_measure(&id->mhs[j++], BULK_TRANSFER, TXONLY | PACKET | TIMER_BASED, 120, "TxBytesSigPSec", stavg, sizeof(stavg)/sizeof(enum stat_types), id->addr, MSG_TYPE_SIGNALLING); //[bytes/s] |
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// Chunks
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add_measure(&id->mhs[j++], COUNTER, RXONLY | DATA | IN_BAND, 120, "RxChunks", stsumrate, sizeof(stsumrate)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //RxChunks_sum [chunks] RxChunks_rate [chunks/sec] |
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add_measure(&id->mhs[j++], COUNTER, TXONLY | DATA | IN_BAND, 120, "TxChunks", stsumrate, sizeof(stsumrate)/sizeof(enum stat_types), id->addr, MSG_TYPE_CHUNK); //TxChunks_sum [chunks] TxChunks_rate [chunks/sec] |
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// for static must not be more then 10 or whatever size is in net_helper-ml.c
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id->n_mhs = j; |
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} |
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/*
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* Delete p2p measurements towards a peer
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*/
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void delete_measures(struct nodeID *id) |
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{ |
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int j;
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dprintf("deleting measures from %s\n",node_addr(id));
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while(id->n_mhs) {
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monDestroyMeasure(id->mhs[--(id->n_mhs)]); |
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} |
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} |
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/*
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* Helper to retrieve a measure
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*/
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double get_measure(struct nodeID *id, int j, enum stat_types st) |
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{ |
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return (id->n_mhs > j) ? monRetrieveResult(id->mhs[j], st) : NAN;
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} |
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/*
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* Hopcount to a given peer
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*/
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int get_hopcount(struct nodeID *id){ |
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double r = get_measure(id, 0, LAST); |
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return isnan(r) ? -1 : (int) r; |
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} |
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/*
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* RTT to a given peer in seconds
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*/
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double get_rtt(struct nodeID *id){ |
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return get_measure(id, 1, WIN_AVG); |
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} |
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/*
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* average RTT to a set of peers in seconds
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*/
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double get_average_rtt(struct nodeID **ids, int len){ |
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int i;
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int n = 0; |
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double sum = 0; |
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for (i = 0; i < len; i++) { |
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double l = get_rtt(ids[i]);
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if (!isnan(l)) {
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sum += l; |
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n++; |
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} |
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} |
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return (n > 0) ? sum / n : NAN; |
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} |
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/*
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* loss ratio from a given peer as 0..1
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*/
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double get_lossrate(struct nodeID *id){ |
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return get_measure(id, 2, WIN_AVG); |
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} |
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/*
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* average loss ratio from a set of peers as 0..1
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*/
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double get_average_lossrate(struct nodeID **ids, int len){ |
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int i;
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int n = 0; |
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double sum = 0; |
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for (i = 0; i < len; i++) { |
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double l = get_lossrate(ids[i]);
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if (!isnan(l)) {
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sum += l; |
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n++; |
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} |
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} |
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return (n > 0) ? sum / n : NAN; |
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} |