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srsLTE
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add option to randomize MAC opportunities in RLC tester

This commit is contained in:
Andre Puschmann 2018-09-27 11:23:06 +02:00
parent 45e6473303
commit f20535657f
1 changed files with 9 additions and 4 deletions
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13
lib/test/upper/rlc_stress_test.cc
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@ -55,7 +55,8 @@ typedef struct {
uint32_t log_level;
bool single_tx;
bool write_pcap;
float opp_sdu_ratio;
uint32_t avg_opp_size;
bool random_opp;
bool zero_seed;
bool pedantic;
} stress_test_args_t;
@ -75,10 +76,11 @@ void parse_args(stress_test_args_t *args, int argc, char *argv[]) {
("mode", bpo::value<std::string>(&args->mode)->default_value("AM"), "Whether to test RLC acknowledged or unacknowledged mode (AM/UM)")
("duration", bpo::value<uint32_t>(&args->test_duration_sec)->default_value(5), "Duration (sec)")
("sdu_size", bpo::value<uint32_t>(&args->sdu_size)->default_value(1500), "Size of SDUs")
("avg_opp_size", bpo::value<uint32_t>(&args->avg_opp_size)->default_value(1505), "Size of the MAC opportunity (if not random)")
("random_opp", bpo::value<bool>(&args->random_opp)->default_value(true), "Whether to generate random MAC opportunities")
("sdu_gen_delay", bpo::value<uint32_t>(&args->sdu_gen_delay_usec)->default_value(0), "SDU generation delay (usec)")
("pdu_tx_delay", bpo::value<uint32_t>(&args->pdu_tx_delay_usec)->default_value(0), "Delay in MAC for transfering PDU from tx'ing RLC to rx'ing RLC (usec)")
("error_rate", bpo::value<float>(&args->error_rate)->default_value(0.1), "Rate at which RLC PDUs are dropped")
("opp_sdu_ratio", bpo::value<float>(&args->opp_sdu_ratio)->default_value(0.0), "Ratio between MAC opportunity and SDU size (0==random)")
("reestablish", bpo::value<bool>(&args->reestablish)->default_value(false), "Mimic RLC reestablish during execution")
("loglevel", bpo::value<uint32_t>(&args->log_level)->default_value(srslte::LOG_LEVEL_DEBUG), "Log level (1=Error,2=Warning,3=Info,4=Debug)")
("singletx", bpo::value<bool>(&args->single_tx)->default_value(false), "If set to true, only one node is generating data")
@ -156,8 +158,11 @@ private:
exit(-1);
}
float r = args.opp_sdu_ratio ? args.opp_sdu_ratio : static_cast<float>(rand())/RAND_MAX;
int opp_size = r*args.sdu_size;
float factor = 1.0;
if (args.random_opp) {
factor = 0.5 + static_cast<float>(rand())/RAND_MAX;
}
int opp_size = args.avg_opp_size * factor;
uint32_t buf_state = tx_rlc->get_buffer_state(lcid);
if (buf_state > 0) {
int read = tx_rlc->read_pdu(lcid, pdu->msg, opp_size);