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nes-proj/apps/shell/shell-netperf.c

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/*
* Copyright (c) 2008, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: shell-netperf.c,v 1.6 2010/02/18 20:56:12 adamdunkels Exp $
*/
/**
* \file
* A small pogram to measure the communication performance between two nodes
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "shell-netperf.h"
#include "net/rime.h"
#include "contiki-conf.h"
#include <stdio.h>
#include <string.h>
#ifndef HAVE_SNPRINTF
int snprintf(char *str, size_t size, const char *format, ...);
#endif /* HAVE_SNPRINTF */
/*---------------------------------------------------------------------------*/
#define DATALEN 90
#define MAX_RETRIES 8
#define CONTINUE_EVENT 128
struct power {
unsigned long lpm, cpu, rx, tx;
};
struct stats {
uint16_t sent, received, timedout;
unsigned long total_tx_latency;
unsigned long total_rx_latency;
clock_time_t start, end;
struct power power0, power;
};
enum {
DATAPATH_COMMAND_NONE,
DATAPATH_COMMAND_ECHO_REQUEST,
DATAPATH_COMMAND_STREAM_ECHO_REQUEST,
DATAPATH_COMMAND_ECHO_REPLY,
} datapath_commands;
struct datapath_msg {
rimeaddr_t receiver;
rtimer_clock_t tx, rx;
uint8_t datapath_command;
uint8_t received;
};
enum {
CTRL_COMMAND_CLEAR,
CTRL_COMMAND_STATS,
CTRL_COMMAND_STATS_REPLY
} ctrlpath_commands;
struct ctrl_msg {
uint8_t command;
struct stats stats;
};
static struct runicast_conn ctrl;
static struct unicast_conn unicast;
static struct broadcast_conn broadcast;
static struct mesh_conn mesh;
static struct rucb_conn rucb;
static rimeaddr_t receiver;
static uint8_t is_sender;
static int left_to_send;
static struct stats stats;
enum {
TYPE_NONE = 0,
TYPE_BROADCAST = 1,
TYPE_UNICAST = 2,
TYPE_UNICAST_PINGPONG = 3,
TYPE_UNICAST_STREAM = 4,
};
static uint8_t current_type;
/*---------------------------------------------------------------------------*/
PROCESS(shell_netperf_process, "netperf");
SHELL_COMMAND(netperf_command,
"netperf",
"netperf: measure single-hop network performance",
&shell_netperf_process);
/*---------------------------------------------------------------------------*/
static void
memcpy_misaligned(void *dest, const void *source, int len)
{
int i;
uint8_t *destptr;
const uint8_t *sourceptr;
if(((int)dest & 1) == 1 ||
((int)source & 1) == 1) {
destptr = dest;
sourceptr = source;
for(i = 0; i < len; ++i) {
*destptr++ = *sourceptr++;
}
} else {
memcpy(dest, source, len);
}
}
/*---------------------------------------------------------------------------*/
static void
print_remote_stats(struct stats *s)
{
unsigned long total_time;
printf("%d 1 %d %d %d %u %lu %lu %lu %lu %lu %lu # for automatic processing\n",
current_type,
s->sent, s->received, s->timedout,
s->end - s->start,
s->total_tx_latency, s->total_rx_latency,
s->power.cpu - s->power0.cpu,
s->power.lpm - s->power0.lpm,
s->power.rx - s->power0.rx,
s->power.tx - s->power0.tx);
printf("Remote node statistics:\n");
total_time = s->power.cpu + s->power.lpm - s->power0.cpu - s->power0.lpm;
printf(" Remote radio duty cycle: rx %lu.%02lu%% tx %lu.%02lu%%\n",
(100 * (s->power.rx - s->power0.rx))/total_time,
((10000 * (s->power.rx - s->power0.rx))/total_time) % 100,
(100 * (s->power.tx - s->power0.tx))/total_time,
((10000 * (s->power.tx - s->power0.tx))/total_time) % 100);
printf(" Packets: sent %d received %d\n",
s->sent, s->received);
}
/*---------------------------------------------------------------------------*/
static void
print_local_stats(struct stats *s)
{
unsigned long total_time;
printf("%d 0 %d %d %d %u %lu %lu %lu %lu %lu %lu # for automatic processing\n",
current_type,
s->sent, s->received, s->timedout,
s->end - s->start,
s->total_tx_latency, s->total_rx_latency,
s->power.cpu - s->power0.cpu,
s->power.lpm - s->power0.lpm,
s->power.rx - s->power0.rx,
s->power.tx - s->power0.tx);
printf("Local node statistics:\n");
printf(" Total transfer time: %d.%d seconds, %d.%02d packets/second\n",
(s->end - s->start) / CLOCK_SECOND,
((10 * (s->end - s->start)) / CLOCK_SECOND) % 10,
CLOCK_SECOND * s->sent / (s->end - s->start),
(100 * CLOCK_SECOND * s->sent / (s->end - s->start)) % 100);
printf(" Average round-trip-time: %lu ms (%lu + %lu)\n",
(1000 * (s->total_rx_latency + s->total_tx_latency) / s->received) /
RTIMER_ARCH_SECOND,
(1000 * (s->total_tx_latency) / s->received) /
RTIMER_ARCH_SECOND,
(1000 * (s->total_rx_latency) / s->received) /
RTIMER_ARCH_SECOND);
total_time = s->power.cpu + s->power.lpm - s->power0.cpu - s->power0.lpm;
printf(" Radio duty cycle: rx %lu.%02lu%% tx %lu.%02lu%%\n",
(100 * (s->power.rx - s->power0.rx))/total_time,
((10000 * (s->power.rx - s->power0.rx))/total_time) % 100,
(100 * (s->power.tx - s->power0.tx))/total_time,
((10000 * (s->power.tx - s->power0.tx))/total_time) % 100);
printf(" Packets received: %d.%lu%%, %d of %d\n",
100 * s->received / s->sent,
(10000L * s->received / s->sent) % 10,
s->received, s->sent);
}
/*---------------------------------------------------------------------------*/
static void
sample_power_profile(struct power *p)
{
energest_flush();
p->lpm = energest_type_time(ENERGEST_TYPE_LPM);
p->cpu = energest_type_time(ENERGEST_TYPE_CPU);
p->rx = energest_type_time(ENERGEST_TYPE_LISTEN);
p->tx = energest_type_time(ENERGEST_TYPE_TRANSMIT);
}
/*---------------------------------------------------------------------------*/
static void
clear_stats(void)
{
memset(&stats, 0, sizeof(stats));
stats.start = clock_time();
sample_power_profile(&stats.power0);
}
/*---------------------------------------------------------------------------*/
static void
setup_sending(rimeaddr_t *to, int num)
{
is_sender = 1;
left_to_send = num;
rimeaddr_copy(&receiver, to);
clear_stats();
}
/*---------------------------------------------------------------------------*/
static void
finalize_stats(struct stats *s)
{
stats.end = clock_time();
sample_power_profile(&stats.power);
}
/*---------------------------------------------------------------------------*/
static unsigned long filesize, bytecount, packetsize;
static int download_complete;
static void
write_chunk(struct rucb_conn *c, int offset, int flag,
char *data, int datalen)
{
printf("+");
}
static int
read_chunk(struct rucb_conn *c, int offset, char *to, int maxsize)
{
int size;
/* printf("-");*/
size = maxsize;
if(bytecount + maxsize >= filesize) {
size = filesize - bytecount;
}
if(size > packetsize) {
size = packetsize;
}
bytecount += size;
if(bytecount == filesize) {
/* end_time_rucb = clock_time();*/
download_complete = 1;
process_post(&shell_netperf_process, PROCESS_EVENT_CONTINUE, NULL);
}
return size;
}
const static struct rucb_callbacks rucb_callbacks =
{ write_chunk, read_chunk, NULL };
/*---------------------------------------------------------------------------*/
static int
construct_next_packet(void)
{
struct datapath_msg *msg;
packetbuf_clear();
if(left_to_send > 0) {
packetbuf_set_datalen(DATALEN);
msg = packetbuf_dataptr();
msg->datapath_command = DATAPATH_COMMAND_NONE;
msg->received = 0;
#if TIMESYNCH_CONF_ENABLED
msg->tx = msg->rx = timesynch_time();
#else /* TIMESYNCH_CONF_ENABLED */
msg->tx = msg->rx = 0;
#endif /* TIMESYNCH_CONF_ENABLED */
rimeaddr_copy(&msg->receiver, &receiver);
left_to_send--;
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int
construct_next_echo(void)
{
struct datapath_msg *msg;
if(construct_next_packet()) {
msg = packetbuf_dataptr();
msg->datapath_command = DATAPATH_COMMAND_ECHO_REQUEST;
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int
construct_next_stream_echo(void)
{
struct datapath_msg *msg;
if(construct_next_packet()) {
msg = packetbuf_dataptr();
msg->datapath_command = DATAPATH_COMMAND_STREAM_ECHO_REQUEST;
packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
PACKETBUF_ATTR_PACKET_TYPE_STREAM);
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static void
process_incoming_packet(void)
{
struct datapath_msg *msg = packetbuf_dataptr();
rtimer_clock_t now;
struct datapath_msg msg_copy;
#if TIMESYNCH_CONF_ENABLED
now = timesynch_time();
#else /* TIMESYNCH_CONF_ENABLED */
now = 0;
#endif /* TIMESYNCH_CONF_ENABLED */
memcpy_misaligned(&msg_copy, (uint8_t *)msg, sizeof(msg_copy));
stats.received++;
stats.total_tx_latency += msg_copy.rx - msg_copy.tx;
stats.total_rx_latency += now - msg_copy.rx;
}
/*---------------------------------------------------------------------------*/
static int
construct_reply(const rimeaddr_t *from)
{
struct datapath_msg *msg = packetbuf_dataptr();
#if TIMESYNCH_CONF_ENABLED
rtimer_clock_t now = timesynch_time();
#else /* TIMESYNCH_CONF_ENABLED */
rtimer_clock_t now = 0;
#endif /* TIMESYNCH_CONF_ENABLED */
memcpy_misaligned(&msg->rx, &now, sizeof(rtimer_clock_t));
switch(msg->datapath_command) {
case DATAPATH_COMMAND_ECHO_REQUEST:
msg->datapath_command = DATAPATH_COMMAND_ECHO_REPLY;
break;
case DATAPATH_COMMAND_STREAM_ECHO_REQUEST:
msg->datapath_command = DATAPATH_COMMAND_ECHO_REPLY;
packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
PACKETBUF_ATTR_PACKET_TYPE_STREAM);
break;
}
if(msg->datapath_command == DATAPATH_COMMAND_ECHO_REPLY) {
packetbuf_set_datalen(sizeof(struct datapath_msg));
msg->received = stats.received;
stats.sent++;
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static void
sent_mesh(struct mesh_conn *c)
{
stats.sent++;
}
static void
timedout_mesh(struct mesh_conn *c)
{
if(is_sender) {
if(construct_next_echo()) {
mesh_send(&mesh, &receiver);
}
}
stats.timedout++;
}
static void
recv_mesh(struct mesh_conn *c, const rimeaddr_t *from, uint8_t hops)
{
process_incoming_packet();
if(is_sender) {
if(construct_next_echo()) {
mesh_send(&mesh, &receiver);
}
} else {
if(construct_reply(from)) {
mesh_send(&mesh, from);
}
}
}
const static struct mesh_callbacks mesh_callbacks =
{ recv_mesh, sent_mesh, timedout_mesh };
/*---------------------------------------------------------------------------*/
static void
sent_ctrl(struct runicast_conn *c, const rimeaddr_t *to, uint8_t rexmits)
{
process_post(&shell_netperf_process, CONTINUE_EVENT, NULL);
}
static void
timedout_ctrl(struct runicast_conn *c, const rimeaddr_t *to, uint8_t rexmits)
{
shell_output_str(&netperf_command, "netperf control connection failed", "");
process_exit(&shell_netperf_process);
}
static void
recv_ctrl(struct runicast_conn *c, const rimeaddr_t *from, uint8_t seqno)
{
static uint8_t last_seqno = -1;
struct stats s;
struct ctrl_msg *msg = packetbuf_dataptr();
if(last_seqno == seqno) {
return;
}
last_seqno = seqno;
switch(msg->command) {
case CTRL_COMMAND_STATS:
msg->command = CTRL_COMMAND_STATS_REPLY;
finalize_stats(&stats);
memcpy_misaligned(&msg->stats, &stats, sizeof(stats));
packetbuf_set_datalen(sizeof(struct ctrl_msg));
runicast_send(c, from, MAX_RETRIES);
break;
case CTRL_COMMAND_STATS_REPLY:
memcpy_misaligned(&s, &msg->stats, sizeof(stats));
print_remote_stats(&s);
process_post(&shell_netperf_process, CONTINUE_EVENT, NULL);
break;
case CTRL_COMMAND_CLEAR:
clear_stats();
break;
}
}
const static struct runicast_callbacks runicast_callbacks =
{ recv_ctrl, sent_ctrl, timedout_ctrl };
/*---------------------------------------------------------------------------*/
static void
send_ctrl_command(const rimeaddr_t *to, uint8_t command)
{
struct ctrl_msg *msg;
packetbuf_clear();
packetbuf_set_datalen(sizeof(struct ctrl_msg));
msg = packetbuf_dataptr();
msg->command = command;
runicast_send(&ctrl, to, MAX_RETRIES);
}
/*---------------------------------------------------------------------------*/
static void
recv_broadcast(struct broadcast_conn *c, const rimeaddr_t *from)
{
process_incoming_packet();
if(is_sender) {
} else if(construct_reply(from)) {
broadcast_send(&broadcast);
}
}
const static struct broadcast_callbacks broadcast_callbacks =
{ recv_broadcast };
/*---------------------------------------------------------------------------*/
static void
recv_unicast(struct unicast_conn *c, const rimeaddr_t *from)
{
process_incoming_packet();
if(is_sender) {
struct datapath_msg *msg = packetbuf_dataptr();
if(msg->datapath_command == DATAPATH_COMMAND_ECHO_REPLY) {
process_post(&shell_netperf_process, CONTINUE_EVENT, NULL);
}
} else if(construct_reply(from)) {
unicast_send(&unicast, from);
}
}
const static struct unicast_callbacks unicast_callbacks =
{ recv_unicast };
/*---------------------------------------------------------------------------*/
static void
print_usage(void)
{
shell_output_str(&netperf_command,
"netperf [-b|u|p|s] <receiver> <num packets>: perform network measurements to receiver", "");
shell_output_str(&netperf_command,
" -b measure broadcast performance", "");
shell_output_str(&netperf_command,
" -u measure one-way unicast performance", "");
shell_output_str(&netperf_command,
" -p measure ping-pong unicast performance", "");
shell_output_str(&netperf_command,
" -s measure ping-pong stream unicast performance", "");
}
/*---------------------------------------------------------------------------*/
void
shell_netperf_init(void)
{
runicast_open(&ctrl, SHELL_RIME_CHANNEL_NETPERF, &runicast_callbacks);
broadcast_open(&broadcast, SHELL_RIME_CHANNEL_NETPERF + 1, &broadcast_callbacks);
unicast_open(&unicast, SHELL_RIME_CHANNEL_NETPERF + 2, &unicast_callbacks);
mesh_open(&mesh, SHELL_RIME_CHANNEL_NETPERF + 3, &mesh_callbacks);
rucb_open(&rucb, SHELL_RIME_CHANNEL_NETPERF + 5, &rucb_callbacks);
shell_register_command(&netperf_command);
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_netperf_process, ev, data)
{
static struct etimer e;
static rimeaddr_t receiver;
const char *nextptr;
const char *args;
static char recvstr[40];
static int i, num_packets;
static uint8_t do_broadcast, do_unicast, do_pingpong, do_stream_pingpong;
PROCESS_BEGIN();
current_type = TYPE_NONE;
do_broadcast = do_unicast = do_pingpong =
do_stream_pingpong = 0;
args = data;
/* Parse the -bups options */
while(*args == '-') {
++args;
while(*args != ' ' &&
*args != 0) {
if(*args == 'b') {
do_broadcast = 1;
}
if(*args == 'u') {
do_unicast = 1;
}
if(*args == 'p') {
do_pingpong = 1;
}
if(*args == 's') {
do_stream_pingpong = 1;
}
++args;
}
while(*args == ' ') {
args++;
}
}
/* Parse the receiver address */
receiver.u8[0] = shell_strtolong(args, &nextptr);
if(nextptr == data || *nextptr != '.') {
print_usage();
PROCESS_EXIT();
}
args = nextptr + 1;
receiver.u8[1] = shell_strtolong(args, &nextptr);
/* Store the receiver address as a string since we need to print it
out later. */
snprintf(recvstr, sizeof(recvstr), "%d.%d",
receiver.u8[0], receiver.u8[1]);
/* Parse the number of packets to send */
args = nextptr;
while(*args == ' ') {
++args;
}
num_packets = shell_strtolong(args, &nextptr);
if(nextptr == data || num_packets == 0) {
print_usage();
PROCESS_EXIT();
}
/* Send broadcast packets, if requested */
if(do_broadcast) {
current_type = TYPE_BROADCAST;
shell_output_str(&netperf_command, "-------- Broadcast --------", "");
shell_output_str(&netperf_command, "Contacting ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_CLEAR);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
shell_output_str(&netperf_command, "Measuring broadcast performance to ", recvstr);
setup_sending(&receiver, num_packets);
for(i = 0; i < num_packets; ++i) {
if(construct_next_packet()) {
broadcast_send(&broadcast);
stats.sent++;
}
PROCESS_PAUSE();
}
shell_output_str(&netperf_command, "Requesting statistics from ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_STATS);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
/* Wait for reply */
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
finalize_stats(&stats);
print_local_stats(&stats);
}
if(do_unicast) {
current_type = TYPE_UNICAST;
shell_output_str(&netperf_command, "-------- Unicast one-way --------", "");
shell_output_str(&netperf_command, "Contacting ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_CLEAR);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
shell_output_str(&netperf_command, "Measuring unicast performance to ", recvstr);
setup_sending(&receiver, num_packets);
for(i = 0; i < num_packets; ++i) {
if(construct_next_packet()) {
unicast_send(&unicast, &receiver);
stats.sent++;
}
PROCESS_PAUSE();
}
shell_output_str(&netperf_command, "Requesting statistics from ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_STATS);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
/* Wait for reply */
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
finalize_stats(&stats);
print_local_stats(&stats);
}
if(do_pingpong) {
current_type = TYPE_UNICAST_PINGPONG;
shell_output_str(&netperf_command, "-------- Unicast ping-pong--------", "");
shell_output_str(&netperf_command, "Contacting ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_CLEAR);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
shell_output_str(&netperf_command, "Measuring two-way unicast performance to ", recvstr);
setup_sending(&receiver, num_packets);
for(i = 0; i < num_packets; ++i) {
if(construct_next_echo()) {
unicast_send(&unicast, &receiver);
stats.sent++;
}
etimer_set(&e, CLOCK_SECOND);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT || etimer_expired(&e));
}
shell_output_str(&netperf_command, "Requesting statistics from ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_STATS);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
/* Wait for reply */
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
finalize_stats(&stats);
print_local_stats(&stats);
}
if(do_stream_pingpong) {
current_type = TYPE_UNICAST_STREAM;
shell_output_str(&netperf_command, "-------- Unicast stream ping-pong--------", "");
shell_output_str(&netperf_command, "Contacting ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_CLEAR);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
shell_output_str(&netperf_command, "Measuring two-way unicast stream performance to ", recvstr);
setup_sending(&receiver, num_packets);
for(i = 0; i < num_packets; ++i) {
if(construct_next_stream_echo()) {
unicast_send(&unicast, &receiver);
stats.sent++;
}
etimer_set(&e, CLOCK_SECOND);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT || etimer_expired(&e));
}
shell_output_str(&netperf_command, "Requesting statistics from ", recvstr);
send_ctrl_command(&receiver, CTRL_COMMAND_STATS);
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
/* Wait for reply */
PROCESS_YIELD_UNTIL(ev == CONTINUE_EVENT);
finalize_stats(&stats);
print_local_stats(&stats);
}
shell_output_str(&netperf_command, "Done", "");
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
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