static void submit_derive (const char *type, const char *type_instance,
derive_t c, apache_t *st)
{
value_t v;
v.derive = c;
submit_value (type, type_instance, v, st);
} /* void submit_derive */
static void submit_derive(int cpu_num, int cpu_state, derive_t derive)
{
value_t value;
value.derive = derive;
submit_value (cpu_num, cpu_state, "cpu", value);
}
static void submit_gauge (const char *type, const char *type_instance,
gauge_t g, apache_t *st)
{
value_t v;
v.gauge = g;
submit_value (type, type_instance, v, st);
} /* void submit_gauge */
static int xencpu_read (void)
{
cdtime_t now = cdtime ();
int rc, nr_cpus;
rc = xc_getcpuinfo(xc_handle, num_cpus, cpu_info, &nr_cpus);
if (rc < 0) {
ERROR ("xencpu: xc_getcpuinfo() Failed: %d %s\n", rc, xc_strerror(xc_handle,errno));
return (-1);
}
int status;
for (int cpu = 0; cpu < nr_cpus; cpu++) {
gauge_t rate = NAN;
value_t value = {.derive = cpu_info[cpu].idletime};
status = value_to_rate (&rate, value, DS_TYPE_DERIVE, now, &cpu_states[cpu]);
if (status == 0) {
submit_value(cpu, 100 - rate/10000000);
}
}
return (0);
} /* static int xencpu_read */
void module_register (void)
{
plugin_register_init ("xencpu", xencpu_init);
plugin_register_read ("xencpu", xencpu_read);
plugin_register_shutdown ("xencpu", xencpu_shutdown);
} /* void module_register */
static void submit_percent(int cpu_num, int cpu_state, gauge_t percent)
{
value_t value;
value.gauge = percent;
submit_value (cpu_num, cpu_state, "percent", value);
}
static void submit_counter (const char *type, const char *type_instance,
counter_t c, apache_t *st)
{
value_t v;
v.counter = c;
submit_value (type, type_instance, v, st);
} /* void submit_counter */
// Invoked when a value is delivered
void on_deliver(void* cmd_value, size_t cmd_size, void * arg) {
client * cl = arg;
cl->current_inst_number += 1;
client_proposal * c;
unsigned i;
//Check if the delivered values was sent from this process.
for(i = 0; i < CONCURRENT_VALUES; i++) {
c = &cl->pending_values[i];
submit_cmd_msg * msg = c->submit_msg;
//If so, submit another one
if(cmd_size == msg->cmd_size &&
memcmp(msg->cmd_value, cmd_value, cmd_size) == 0) {
// printf("CMD %u accepted in instance %lu\n", i, current_inst_number);
cl->deliver_count += 1;
cl->deliver_bytes += cmd_size;
gettimeofday(&cl->current_time, NULL);
save_latency(cl, &c->submit_time, &cl->current_time);
generate_random_value(c->submit_msg);
submit_value(cl->us, c->submit_msg);
save_submit_time(c, &cl->current_time);
timer_set_timeout(&cl->current_time, &c->timeout, &cl->value_timeout_interval);
break;
}
}
}
static void submit_percent(int cpu_num, int cpu_state, gauge_t percent)
{
value_t value;
/* This function is called for all known CPU states, but each read
* method will only report a subset. The remaining states are left as
* NAN and we ignore them here. */
if (isnan (percent))
return;
value.gauge = percent;
submit_value (cpu_num, cpu_state, "percent", value);
}
//Custom init for the learner
void client_pl_init(void * arg) {
client * cl = arg;
printf("FastClient: submitting %d values of size [%lu...%lu]\n",
CONCURRENT_VALUES, MIN_VAL_SIZE, MAX_VAL_SIZE);
//Use an udp sender instead of a submit_proxy
cl->us = udp_sender_init(
lptopo_get_leader_addr(learner_get_topolo_mngr(cl->l)),
lptopo_get_leader_clients_port(learner_get_topolo_mngr(cl->l)),
learner_get_config_mngr(cl->l));
// No autoflush, it's manual for this client
assert(cl->us != NULL);
udp_sender_enable_autoflush(cl->us, 25);
//Periodically check for timeouts
cl->periodic_check =
set_periodic_event(
&cl->value_timeout_interval, /*Interval for this event*/
values_timeout_check, /*Called periodically*/
cl /*Argument passed to above function*/
);
//Periodically print statistics
cl->periodic_stats =
set_periodic_event(
&cl->print_stats_interval, /*Interval for this event*/
print_stats, /*Called periodically*/
cl /*Argument passed to above function*/
);
printf("Client initialization completed\n");
cl->start_time = time(NULL);
gettimeofday(&cl->current_time, NULL);
//Submit the initial amount of values
client_proposal * c;
unsigned i;
for(i = 0; i < CONCURRENT_VALUES; i++) {
c = &cl->pending_values[i];
// c->submit_msg = malloc(sizeof(submit_cmd_msg) + MAX_VAL_SIZE);
c->submit_msg = (submit_cmd_msg*) &cl->values_buffer[i * (MAX_VAL_SIZE + sizeof(submit_cmd_msg))];
generate_random_value(c->submit_msg);
submit_value(cl->us, c->submit_msg);
save_submit_time(c, &cl->current_time);
timer_set_timeout(&cl->current_time, &c->timeout, &cl->value_timeout_interval);
}
}
//Check that the sent values did not time-out
// The timed-out values are re-sent
void values_timeout_check(void* arg) {
client * cl = arg;
gettimeofday(&cl->current_time, NULL);
client_proposal * c;
unsigned i;
for(i = 0; i < CONCURRENT_VALUES; i++) {
c = &cl->pending_values[i];
if(timer_is_expired(&c->timeout, &cl->current_time)) {
cl->timeout_count += 1;
// printf("Value %u timed-out\n", i);
submit_value(cl->us, c->submit_msg);
save_submit_time(c, &cl->current_time);
timer_set_timeout(&cl->current_time, &c->timeout, &cl->value_timeout_interval);
}
}
}
static int xencpu_read(void) {
cdtime_t now = cdtime();
int rc, nr_cpus;
rc = xc_getcpuinfo(xc_handle, num_cpus, cpu_info, &nr_cpus);
if (rc < 0) {
ERROR("xencpu: xc_getcpuinfo() Failed: %d %s\n", rc,
xc_strerror(xc_handle, errno));
return -1;
}
int status;
for (int cpu = 0; cpu < nr_cpus; cpu++) {
gauge_t rate = NAN;
status = value_to_rate(&rate, (value_t){.derive = cpu_info[cpu].idletime},
DS_TYPE_DERIVE, now, &cpu_states[cpu]);
if (status == 0) {
submit_value(cpu, 100 - rate / 10000000);
}
}