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Correct UDP link capability in JSON and CPU Utlization for Server Text output #1358

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Correct UDP link capability in JSON and CPU Utlization for Server Text output #1358

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9d2bd4f
Fix issue #754 - incorrect UDP link capability in jSON output
davidBar-On Jun 30, 2022
17ede8a
Add fix to #1552 - remote cpu utilization on the server
davidBar-On Jul 26, 2023
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42 changes: 27 additions & 15 deletions src/iperf_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4272,12 +4272,12 @@ iperf_print_results(struct iperf_test *test)
}

/*
* We must to sum streams separately.
* For bidirectional mode we must to display
* We must sum streams separately.
* For bidirectional mode we must display
* information about sender and receiver streams.
* For client side we must handle sender streams
* firstly and receiver streams for server side.
* The following design allows us to do this.
* The following design allows us to do that.
*/

if (test->mode == BIDIRECTIONAL) {
Expand Down Expand Up @@ -4312,6 +4312,7 @@ iperf_print_results(struct iperf_test *test)
double sender_time = 0.0, receiver_time = 0.0;
struct iperf_time temp_time;
double bandwidth;
iperf_size_t bytes_count;

char mbuf[UNIT_LEN];
int stream_must_be_sender = current_mode * current_mode;
Expand Down Expand Up @@ -4459,7 +4460,7 @@ iperf_print_results(struct iperf_test *test)
* information for both the sender and receiver
* side.
*
* The JSON format as currently defined only includes one
* The JSON format as currently defined to only include one
* value for the number of packets. We usually want that
* to be the sender's value (how many packets were sent
* by the sender). However this value might not be
Expand All @@ -4469,8 +4470,19 @@ iperf_print_results(struct iperf_test *test)
* is the case, then use the receiver's count of packets
* instead.
*/
// Choose sum of sent/received bytes count based on mode
int64_t packet_count = sender_packet_count ? sender_packet_count : receiver_packet_count;
cJSON_AddItemToObject(json_summary_stream, "udp", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f out_of_order: %d sender: %b", (int64_t) sp->socket, (double) start_time, (double) sender_time, (double) sender_time, (int64_t) bytes_sent, bandwidth * 8, (double) sp->jitter * 1000.0, (int64_t) (sp->cnt_error - sp->omitted_cnt_error), (int64_t) (packet_count - sp->omitted_packet_count), (double) lost_percent, (int64_t) (sp->outoforder_packets - sp->omitted_outoforder_packets), stream_must_be_sender));
if (test->mode == SENDER)
bytes_count = bytes_sent;
else if (test->mode == RECEIVER)
bytes_count = bytes_received;
else { // BIDIRECTIONAL
if (stream_must_be_sender)
bytes_count = bytes_sent;
else
bytes_count = bytes_received;
}
cJSON_AddItemToObject(json_summary_stream, "udp", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f out_of_order: %d sender: %b", (int64_t) sp->socket, (double) start_time, (double) sender_time, (double) sender_time, (int64_t) bytes_count, bandwidth * 8, (double) sp->jitter * 1000.0, (int64_t) (sp->cnt_error - sp->omitted_cnt_error), (int64_t) (packet_count - sp->omitted_packet_count), (double) lost_percent, (int64_t) (sp->outoforder_packets - sp->omitted_outoforder_packets), stream_must_be_sender));
}
else {
/*
Expand Down Expand Up @@ -4568,7 +4580,7 @@ iperf_print_results(struct iperf_test *test)
}
}
}
}
} // End of if at least one steram

if (test->num_streams > 1 || test->json_output) {
/*
Expand Down Expand Up @@ -4662,7 +4674,8 @@ iperf_print_results(struct iperf_test *test)
* structure is not recommended due to
* ambiguities between the sender and receiver.
*/
cJSON_AddItemToObject(test->json_end, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f sender: %b", (double) start_time, (double) receiver_time, (double) receiver_time, (int64_t) total_sent, bandwidth * 8, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) total_packets, (double) lost_percent, stream_must_be_sender));
bytes_count = stream_must_be_sender ? total_sent : total_received;
cJSON_AddItemToObject(test->json_end, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f sender: %b", (double) start_time, (double) receiver_time, (double) receiver_time, (int64_t) bytes_count, bandwidth * 8, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) total_packets, (double) lost_percent, stream_must_be_sender));

double sent_bandwidth = sender_time > 0 ? ((double) total_sent * 8 / sender_time) : 0.0;
double recv_bandwidth = receiver_time > 0 ? ((double) total_received * 8 / receiver_time) : 0.0;
Expand Down Expand Up @@ -4722,13 +4735,12 @@ iperf_print_results(struct iperf_test *test)
}
else {
if (test->verbose) {
if (stream_must_be_sender) {
if (test->bidirectional) {
iperf_printf(test, report_cpu, report_local, stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
iperf_printf(test, report_cpu, report_local, !stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, !stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
} else
iperf_printf(test, report_cpu, report_local, stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
}
if (test->bidirectional) {
iperf_printf(test, report_cpu, report_local, stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
iperf_printf(test, report_cpu, report_local, !stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, !stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
} else
iperf_printf(test, report_cpu, report_local, stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);

if (test->protocol->id == Ptcp) {
char *snd_congestion = NULL, *rcv_congestion = NULL;
if (stream_must_be_sender) {
Expand Down Expand Up @@ -4764,7 +4776,7 @@ iperf_print_results(struct iperf_test *test)
}
}
}
}
} // Loop between lower and upper modes

/* Set real sender_has_retransmits for current side */
if (test->mode == BIDIRECTIONAL)
Expand Down
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