]> rtime.felk.cvut.cz Git - can-benchmark.git/blobdiff - latester/latester.c
Merge branch 'master' of rtime.felk.cvut.cz:/can-benchmark
[can-benchmark.git] / latester / latester.c
index 8d38540ceadbcddef92136fdff3f1f3dbd60e10e..b7bb38b49bea7489d0bbe3a08d060155dc6e98d0 100644 (file)
 #include <fcntl.h>
 #include <math.h>
 #include <net/if.h>
+#include <poll.h>
+#include <popt.h>
 #include <pthread.h>
 #include <semaphore.h>
+#include <sched.h>
 #include <signal.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/types.h>
-//#include <ul_list.h>
+#include <talloc.h>
 #include <unistd.h>
-#include <sched.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
+
 #include <linux/can.h>
 #include <linux/can/raw.h>
-#include <poll.h>
-#include <talloc.h>
-#include <popt.h>
 
 #include "histogram.h"
 
+//#define FTRACE
+
 #ifndef DEBUG
 #define dbg(level, fmt, arg...) do {} while (0)
 #else
@@ -56,16 +59,37 @@ struct options {
        unsigned timeout_ms;
        unsigned count;
        unsigned oneattime;
-       char *file;
-       char *histogram_fn;
-} opt = {
+       char *name;
+       int length;
+       int userhist;
+       int quiet;
+
+       /* Temporary variables */
+       FILE *f_msgs;
+       FILE *f_hist;
+       FILE *f_stat;
+};
+
+struct options opt = {
        .id = 10,
        .period_us = 0,
        .timeout_ms = 1000,
-       
+       .length = 2,
 };
 
+struct {
+       unsigned enobufs;
+       unsigned overrun;
+       unsigned lost;
+       struct timespec tic, tac;
+       unsigned timeouts;
+       unsigned invalid_frame;
+} stats;
+
 int num_interfaces = 0;
+int count = 0;                 /* Number of sent messages */
+unsigned msg_in_progress = 0;
+int completion_pipe[2];
 
 struct msg_info {
        canid_t id;
@@ -73,23 +97,53 @@ struct msg_info {
        struct timespec ts_sent, ts_sent_kern;
        struct timespec ts_rx_onwire, ts_rx_onwire_kern;
        struct timespec ts_rx_final, ts_rx_final_kern;
+       struct can_frame sent, received;
 };
 
 #define MAX_INFOS 10000
 struct msg_info msg_infos[MAX_INFOS];
-uint16_t curr_msg = 0;
 
 struct histogram histogram;
 
+void sprint_canframe(char *buf , struct can_frame *cf, int sep) {
+       /* documentation see lib.h */
+
+       int i,offset;
+       int dlc = (cf->can_dlc > 8)? 8 : cf->can_dlc;
+
+       if (cf->can_id & CAN_ERR_FLAG) {
+               sprintf(buf, "%08X#", cf->can_id & (CAN_ERR_MASK|CAN_ERR_FLAG));
+               offset = 9;
+       } else if (cf->can_id & CAN_EFF_FLAG) {
+               sprintf(buf, "%08X#", cf->can_id & CAN_EFF_MASK);
+               offset = 9;
+       } else {
+               sprintf(buf, "%03X#", cf->can_id & CAN_SFF_MASK);
+               offset = 4;
+       }
+
+       if (cf->can_id & CAN_RTR_FLAG) /* there are no ERR frames with RTR */
+               sprintf(buf+offset, "R");
+       else
+               for (i = 0; i < dlc; i++) {
+                       sprintf(buf+offset, "%02X", cf->data[i]);
+                       offset += 2;
+                       if (sep && (i+1 < dlc))
+                               sprintf(buf+offset++, ".");
+               }
+}
+
 static inline struct msg_info *frame2info(struct can_frame *frame)
 {
        uint16_t idx;
-       if (frame->can_dlc == 2) {
+       if (frame->can_dlc >= 2) {
                memcpy(&idx, frame->data, sizeof(idx));
                if (idx >= MAX_INFOS)
                        error(1, 0, "%s idx too high", __FUNCTION__);
-       } else
+       } else {
+
                error(1, 0, "%s error", __FUNCTION__);
+       }
        return &msg_infos[idx];
 }
 
@@ -99,37 +153,46 @@ static inline char *tstamp_str(const void *ctx, struct timespec *tstamp)
                               tstamp->tv_sec, tstamp->tv_nsec/1000);
 }
 
-void print_msg_info(struct msg_info *mi)
+void msg_info_print(FILE *f, struct msg_info *mi)
 {
        struct timespec diff;
        void *local = talloc_new (NULL);
-       
+       static long num = 0;
+       char sent[64], received[64];
+
+       sprint_canframe(sent, &mi->sent, true);
+       sprint_canframe(received, &mi->received, true);
+
 #define S(ts) tstamp_str(local, &ts)
 #define DIFF(a, b) (timespec_subtract(&diff, &b, &a), S(diff))
-       
-       if (num_interfaces == 2) 
-               printf("%s -> %s (%s) = %s (%s)\n",
-                      S(mi->ts_sent), S(mi->ts_rx_final_kern), S(mi->ts_rx_final),
-                      DIFF(mi->ts_sent, mi->ts_rx_onwire_kern),
-                      DIFF(mi->ts_sent, mi->ts_rx_onwire));
-       else
-               printf("%s -> %s (%s) -> %s (%s) = %s (%s), %s (%s)\n",
-                      S(mi->ts_sent),
-                      S(mi->ts_rx_onwire_kern), S(mi->ts_rx_onwire),
-                      S(mi->ts_rx_final_kern), S(mi->ts_rx_final),
-                      DIFF(mi->ts_sent, mi->ts_rx_onwire_kern),
-                      DIFF(mi->ts_sent, mi->ts_rx_onwire),
-                      DIFF(mi->ts_rx_onwire_kern, mi->ts_rx_final_kern),
-                      DIFF(mi->ts_rx_onwire, mi->ts_rx_final));
+
+       switch (num_interfaces) {
+       case 2:
+               fprintf(f, "%ld: %s %s -> %s (%s) %s = %s (%s)\n",
+                       num, S(mi->ts_sent), sent, S(mi->ts_rx_final_kern), S(mi->ts_rx_final), received,
+                      DIFF(mi->ts_sent, mi->ts_rx_final_kern),
+                      DIFF(mi->ts_sent, mi->ts_rx_final));
+               break;
+       case 3:
+               fprintf(f, "%ld: %s %s -> %s (%s) -> %s (%s) %s = %s (%s), %s (%s)\n",
+                       num, S(mi->ts_sent), sent,
+                       S(mi->ts_rx_onwire_kern), S(mi->ts_rx_onwire),
+                       S(mi->ts_rx_final_kern), S(mi->ts_rx_final), received,
+                       DIFF(mi->ts_sent, mi->ts_rx_onwire_kern),
+                       DIFF(mi->ts_sent, mi->ts_rx_onwire),
+                       DIFF(mi->ts_rx_onwire_kern, mi->ts_rx_final_kern),
+                       DIFF(mi->ts_rx_onwire, mi->ts_rx_final));
+               break;
+       }
 #undef S
 #undef DIFF
+       num++;
        talloc_free (local);
 }
 
-
 /* Subtract the `struct timespec' values X and Y, storing the result in
    RESULT.  Return 1 if the difference is negative, otherwise 0.  */
-     
+
 int timespec_subtract (struct timespec *result, struct timespec *x, struct timespec *yy)
 {
        struct timespec ylocal = *yy, *y = &ylocal;
@@ -144,12 +207,12 @@ int timespec_subtract (struct timespec *result, struct timespec *x, struct times
                y->tv_nsec += 1000000000 * nsec;
                y->tv_sec -= nsec;
        }
-     
+
        /* Compute the time remaining to wait.
           `tv_nsec' is certainly positive. */
        result->tv_sec = x->tv_sec - y->tv_sec;
        result->tv_nsec = x->tv_nsec - y->tv_nsec;
-     
+
        /* Return 1 if result is negative. */
        return x->tv_sec < y->tv_sec;
 }
@@ -163,7 +226,22 @@ void dbg_print_timespec(char *msg, struct timespec *tv)
 static inline unsigned get_msg_latency_us(struct msg_info *mi)
 {
        struct timespec diff;
-       timespec_subtract(&diff, &mi->ts_rx_final_kern, &mi->ts_rx_onwire_kern);
+       switch (num_interfaces) {
+       case 3:
+               if (opt.userhist)
+                       timespec_subtract(&diff, &mi->ts_rx_final, &mi->ts_rx_onwire);
+               else
+                       timespec_subtract(&diff, &mi->ts_rx_final_kern, &mi->ts_rx_onwire_kern);
+               break;
+       case 2:
+               if (opt.userhist)
+                       timespec_subtract(&diff, &mi->ts_rx_final, &mi->ts_sent);
+               else
+                       timespec_subtract(&diff, &mi->ts_rx_final_kern, &mi->ts_sent);
+               break;
+       default:
+               return 0;
+       }
        return diff.tv_sec * 1000000 + diff.tv_nsec/1000;
 }
 
@@ -192,7 +270,7 @@ static inline int sock_get_if_index(int s, const char *if_name)
 {
        struct ifreq ifr;
        MEMSET_ZERO(ifr);
-       
+
        strcpy(ifr.ifr_name, if_name);
        if (ioctl(s, SIOCGIFINDEX, &ifr) < 0)
                error(1, errno, "SIOCGIFINDEX '%s'", if_name);
@@ -204,29 +282,135 @@ static inline get_tstamp(struct timespec *ts)
        clock_gettime(CLOCK_REALTIME, ts);
 }
 
+
+int trace_fd = -1;
+int marker_fd = -1;
+
+int init_ftrace()
+{
+#ifdef FTRACE
+       char *debugfs;
+       char path[256];
+       FILE *f;
+
+       debugfs = "/sys/kernel/debug";
+       if (debugfs) {
+               strcpy(path, debugfs);
+               strcat(path,"/tracing/tracing_on");
+               trace_fd = open(path, O_WRONLY);
+               if (trace_fd >= 0)
+                       write(trace_fd, "1", 1);
+
+               strcpy(path, debugfs);
+               strcat(path,"/tracing/trace_marker");
+               marker_fd = open(path, O_WRONLY);
+
+               strcpy(path, debugfs);
+               strcat(path,"/tracing/set_ftrace_pid");
+               f = fopen(path, "w");
+               fprintf(f, "%d\n", getpid());
+               fclose(f);
+               system("echo function_graph > /sys/kernel/debug/tracing/current_tracer");
+               system("echo can_send > /sys/kernel/debug/tracing/set_graph_function");
+               system("echo > /sys/kernel/debug/tracing/trace");
+               system("echo 1 > /sys/kernel/debug/tracing/tracing_enabled");
+       }
+#endif /* FTRACE */
+}
+
+static inline void trace_on()
+{
+       if (trace_fd >= 0)
+               write(trace_fd, "1", 1);
+}
+
+static inline void trace_off(int ret)
+{
+       if (marker_fd >= 0) {
+               char marker[100];
+               sprintf(marker, "write returned %d\n", ret);
+               write(marker_fd, marker, strlen(marker));
+       }
+       if (trace_fd >= 0)
+               write(trace_fd, "0", 1);
+}
+
+static inline void msg_info_free(struct msg_info *mi)
+{
+       mi->id = -1;
+}
+
+static inline bool msg_info_used(struct msg_info *mi)
+{
+       return mi->id != -1;
+}
+
 int send_frame(int socket)
 {
        struct can_frame frame;
        struct msg_info *mi;
        int ret;
+       static int curr_msg = -1;
+       int i;
+       uint16_t idx;
+
+       MEMSET_ZERO(frame);
+       i = curr_msg+1;
+       while (msg_info_used(&msg_infos[i]) && i != curr_msg) {
+               i++;
+               if (i >= MAX_INFOS)
+                       i = 0;
+       }
+       if (i == curr_msg)
+               error(1, 0, "Msg info table is full! Probably, many packets were lost.");
+       else
+               curr_msg = i;
 
        frame.can_id = opt.id;
-       frame.can_dlc = 2;
-       memcpy(frame.data, &curr_msg, sizeof(curr_msg));
+       if (opt.length < 2)
+               error(1, 0, "Length < 2 is not yet supported");
+       frame.can_dlc = opt.length;
+       idx = curr_msg;
+       memcpy(frame.data, &idx, sizeof(idx));
        mi = frame2info(&frame);
 
+       mi->id = frame.can_id;
+       mi->length = frame.can_dlc;
        get_tstamp(&mi->ts_sent);
+       mi->sent = frame;
+
+       trace_on();
        ret = write(socket, &frame, sizeof(frame));
+       trace_off(ret);
+
+       if (ret == -1 || num_interfaces == 1)
+               msg_info_free(mi);
        return ret;
 }
 
+static inline send_and_check(int s)
+{
+       int ret;
+       ret = send_frame(s);
+       if (ret != sizeof(struct can_frame)) {
+/*             if (ret == -1 && errno == ENOBUFS && opt.period_us == 0 && !opt.oneattime) { */
+/*                     stats.enobufs++; */
+/*                     /\* Ignore this error - pfifo_fast qeuue is full *\/ */
+/*             } else */
+                       error(1, errno, "send_frame (line %d)", __LINE__);
+       } else {
+               count++;
+               msg_in_progress++;
+       }
+}
+
 static inline void get_next_timeout(struct timespec *timeout)
 {
        struct timespec now;
        static struct timespec last = {-1, 0 };
 
        clock_gettime(CLOCK_MONOTONIC, &now);
-       
+
        if (last.tv_sec == -1)
                last = now;
        if (opt.period_us != 0) {
@@ -235,8 +419,11 @@ static inline void get_next_timeout(struct timespec *timeout)
                while (last.tv_nsec >= 1000000000) {
                        last.tv_nsec -= 1000000000;
                        last.tv_sec++;
-               }               
-               timespec_subtract(timeout, &last, &now);
+               }
+               if (timespec_subtract(timeout, &last, &now) /* is negative */) {
+                       stats.overrun++;
+                       memset(timeout, 0, sizeof(*timeout));
+               }
        } else if (opt.timeout_ms != 0) {
                timeout->tv_sec = opt.timeout_ms/1000;
                timeout->tv_nsec = (opt.timeout_ms%1000)*1000000;
@@ -263,7 +450,7 @@ void receive(int s, struct can_frame *frame, struct timespec *ts_kern, struct ti
        /* these settings may be modified by recvmsg() */
        iov.iov_len = sizeof(*frame);
        msg.msg_namelen = sizeof(addr);
-       msg.msg_controllen = sizeof(ctrlmsg);  
+       msg.msg_controllen = sizeof(ctrlmsg);
        msg.msg_flags = 0;
 
        nbytes = recvmsg(s, &msg, 0);
@@ -298,8 +485,11 @@ void process_on_wire_rx(int s)
        struct msg_info *mi;
        receive(s, &frame, &ts_kern, &ts_user);
        mi = frame2info(&frame);
-       mi->ts_rx_onwire_kern = ts_kern;
-       mi->ts_rx_onwire = ts_user;
+       if (msg_info_used(mi)) {
+               mi->ts_rx_onwire_kern = ts_kern;
+               mi->ts_rx_onwire = ts_user;
+       } else
+               stats.invalid_frame++;
 }
 
 
@@ -308,16 +498,19 @@ void process_final_rx(int s)
        struct timespec ts_kern, ts_user, ts_diff;
        struct can_frame frame;
        struct msg_info *mi;
+       int ret;
+
        receive(s, &frame, &ts_kern, &ts_user);
        mi = frame2info(&frame);
        mi->ts_rx_final_kern = ts_kern;
        mi->ts_rx_final = ts_user;
+       mi->received = frame;
 
-       if (opt.histogram_fn)
-               histogram_add(&histogram, get_msg_latency_us(mi));
+       histogram_add(&histogram, get_msg_latency_us(mi));
 
-       if (!opt.file)
-               print_msg_info(mi);
+       ret = write(completion_pipe[1], &mi, sizeof(mi));
+       if (ret == -1)
+               error(1, errno, "completion_pipe write");
 }
 
 void *measure_thread(void *arg)
@@ -327,11 +520,10 @@ void *measure_thread(void *arg)
        struct timespec timeout;
        struct sockaddr_can addr;
        sigset_t set;
-       int count = 0;
-       unsigned msg_in_progress = 0;
+       int consecutive_timeouts = 0;
 
        MEMSET_ZERO(pfd);
-       
+
        for (i=0; i<num_interfaces; i++) {
                if ((s = socket(PF_CAN, SOCK_RAW, CAN_RAW)) < 0)
                        error(1, errno, "socket");
@@ -356,10 +548,10 @@ void *measure_thread(void *arg)
                               &timestamp_on, sizeof(timestamp_on)) < 0)
                        error(1, errno, "setsockopt SO_TIMESTAMP");
 
-//             const int dropmonitor_on = 1;
-//             if (setsockopt(s, SOL_SOCKET, SO_RXQ_OVFL,
-//                            &dropmonitor_on, sizeof(dropmonitor_on)) < 0)
-//                     error(1, errno, "setsockopt SO_RXQ_OVFL not supported by your Linux Kernel");
+               const int dropmonitor_on = 1;
+               if (setsockopt(s, SOL_SOCKET, SO_RXQ_OVFL,
+                              &dropmonitor_on, sizeof(dropmonitor_on)) < 0)
+                       error(1, errno, "setsockopt SO_RXQ_OVFL not supported by your Linux Kernel");
 
                pfd[i].fd = s;
                if (i == 0)
@@ -368,30 +560,22 @@ void *measure_thread(void *arg)
                        pfd[i].events = POLLIN;
        }
 
-       set_sched_policy_and_prio(SCHED_FIFO, 99);
+       set_sched_policy_and_prio(SCHED_FIFO, 40);
 
-#define SEND()                                         \
-       do {    printf("send\n");                       \
-               ret = send_frame(pfd[0].fd);            \
-               if (ret != sizeof(struct can_frame))    \
-                       error(1, errno, "send_frame %d", __LINE__);     \
-               count++;                                \
-               msg_in_progress++;                      \
-       } while (0)
+#define SEND() send_and_check(pfd[0].fd)
 
-       if (opt.oneattime) {
+       if (opt.oneattime)
                SEND();
-               count = 1;
-       }
+
+       get_tstamp(&stats.tic);
 
        while (!finish_flag &&
               (opt.count == 0 || count < opt.count || msg_in_progress != 0)) {
 
                get_next_timeout(&timeout);
-               printf("ppoll");
-               fflush(stdout);
+               //printf("ppoll"); fflush(stdout);
                ret = ppoll(pfd, num_interfaces, &timeout, NULL);
-               printf("=%d\n", ret);
+               //printf("=%d\n", ret);
                switch (ret) {
                case -1: // Error
                        if (!INTERRUPTED_SYSCALL(errno))
@@ -401,9 +585,15 @@ void *measure_thread(void *arg)
                        if (opt.period_us) {
                                if (opt.count == 0 || count < opt.count) {
                                        SEND();
-                               } else {
-                                       error(1, 0, "poll timeout");
                                }
+                       } else {
+                               /* Lost message - send a new one */
+                               stats.timeouts++;
+                               consecutive_timeouts++;
+                               if (consecutive_timeouts < 10)
+                                       SEND();
+                               else /* Something is really broken */
+                                       finish_flag = 1;
                        }
                        break;
                default: // Event
@@ -423,6 +613,7 @@ void *measure_thread(void *arg)
 
                        i = (num_interfaces == 2) ? 1 : 2;
                        if (pfd[i].revents != 0) {
+                               consecutive_timeouts = 0;
                                process_final_rx(pfd[i].fd);
                                msg_in_progress--;
                                pfd[i].revents = 0;
@@ -434,6 +625,8 @@ void *measure_thread(void *arg)
                }
        }
 
+       get_tstamp(&stats.tac);
+
        for (i=0; i<num_interfaces; i++)
                close(pfd[i].fd);
 
@@ -448,8 +641,10 @@ struct poptOption optionsTable[] = {
        { "timeout",'t', POPT_ARG_INT|POPT_ARGFLAG_SHOW_DEFAULT,  &opt.timeout_ms,0, "Timeout when period is zero", "ms"},
        { "oneattime",'o', POPT_ARG_NONE,                         &opt.oneattime,0,  "Send the next message only when the previous was finally received"},
        { "verbose",'v', POPT_ARG_NONE,                           NULL, 'v',         "Send the next message only when the previous was finally received"},
-       { "file",   'f', POPT_ARG_STRING,                         &opt.file,    0,   "File where to store results", "filename"},
-       { "histogram", 'h', POPT_ARG_STRING,                      &opt.histogram_fn, 0, "Store histogram in file", "filename"},
+       { "name",   'n', POPT_ARG_STRING,                         &opt.name, 0,      "Prefix of the generated files"},
+       { "length", 'l', POPT_ARG_INT|POPT_ARGFLAG_SHOW_DEFAULT,  &opt.length, 0,    "The length of generated messages", "bytes"},
+       { "userhist", 'u', POPT_ARG_NONE,                         &opt.userhist, 0,  "Generate histogram from userspace timestamps"},
+       { "quiet",  'q', POPT_ARG_NONE,                           &opt.quiet, 0,     "Do not print progress and statistics"},
        POPT_AUTOHELP
        { NULL, 0, 0, NULL, 0 }
 };
@@ -458,7 +653,8 @@ int parse_options(int argc, const char *argv[])
 {
        int c;
        poptContext optCon;   /* context for parsing command-line options */
-       
+       void *local = talloc_new (NULL);
+
        optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
        //poptSetOtherOptionHelp(optCon, "[OPTIONS]* <port>");
 
@@ -474,53 +670,159 @@ int parse_options(int argc, const char *argv[])
                error(1, 0, "%s: %s\n",
                      poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
                      poptStrerror(c));
-       
-       if (num_interfaces < 2 || num_interfaces > 3)
-               error(1, 0, "-d option must be given exactly 2 or 3 times");
+
+       if (num_interfaces < 1 || num_interfaces > 3)
+               error(1, 0, "-d option must only be given one, two or three times");
 
        if (opt.oneattime && opt.period_us)
                error(1, 0, "oneattime and period cannot be specified at the same time");
 
-       poptFreeContext(optCon);
+       if (opt.name) {
+               char *f = talloc_asprintf(local, "%s-msgs.txt", opt.name);
+               opt.f_msgs = fopen(f, "w");
+               if (!opt.f_msgs)
+                       error(1, errno, "fopen: %s", f);
+       }
+
+       if (opt.name) {
+               char *f = talloc_asprintf(local, "%s-hist.txt", opt.name);
+               opt.f_hist = fopen(f, "w");
+               if (!opt.f_hist)
+                       error(1, errno, "fopen: %s", f);
+       }
+
+       if (opt.name) {
+               char *f = talloc_asprintf(local, "%s-stat.txt", opt.name);
+               opt.f_stat = fopen(f, "w");
+               if (!opt.f_stat)
+                       error(1, errno, "fopen: %s", f);
+       }
 
+       poptFreeContext(optCon);
+       talloc_free(local);
        return 0;
 }
 
+void print_progress()
+{
+       if (! opt.quiet) {
+               if (num_interfaces > 1)
+                       printf("\rSent %5d, in progress %5d", count, msg_in_progress);
+               else
+                       printf("\rSent %5d", count);
+               fflush(stdout);
+       }
+}
 
 int main(int argc, const char *argv[])
 {
        pthread_t thread;
        sigset_t set;
-       int ret;
-       FILE *fhist;
-       
+       int ret, i;
+
        parse_options(argc, argv);
-                          
+
        mlockall(MCL_CURRENT | MCL_FUTURE);
 
        signal(SIGINT, term_handler);
        signal(SIGTERM, term_handler);
 
-       if (opt.histogram_fn) {
-               histogram_init(&histogram, 1000000, 5);
-               fhist = fopen(opt.histogram_fn, "w");
-               if (fhist == NULL)
-                       error(1, errno, "open %s", opt.histogram_fn);
-       }
+       for (i=0; i<MAX_INFOS; i++)
+               msg_infos[i].id = -1;
 
+       histogram_init(&histogram, 5000000, 1);
+
+       ret = pipe(completion_pipe);
+       if (ret == -1)
+               error(1, errno, "pipe");
+       ret = fcntl(completion_pipe[1], F_SETFL, O_NONBLOCK);
+       if (ret == -1)
+               error(1, errno, "pipe fcntl");
+
+       init_ftrace();
 
        pthread_create(&thread, 0, measure_thread, NULL);
 
-/*     while (!finish_flag) { */
-/*             sleep(1); */
-/*     } */
+       struct timespec next, now, diff, allsent = {0,0};
+       clock_gettime(CLOCK_MONOTONIC, &next);
+       int completed = 0;
+       while (!finish_flag && (opt.count == 0 || completed < opt.count)) {
+               struct pollfd pfd[1];
+               pfd[0].fd = completion_pipe[0];
+               pfd[0].events = POLLIN;
+               ret = poll(pfd, 1, 100);
+               if (ret == -1 && !INTERRUPTED_SYSCALL(errno))
+                       error(1, errno, "poll main");
+               if (ret > 0 && (pfd[0].revents & POLLIN)) {
+                       struct msg_info *mi;
+                       int ret;
+                       ret = read(completion_pipe[0], &mi, sizeof(mi));
+                       if (ret < sizeof(mi))
+                               error(1, errno, "read completion returned %d", ret);
+                       msg_info_print(opt.f_msgs, mi);
+                       msg_info_free(mi);
+                       completed++;
+               }
+
+               clock_gettime(CLOCK_MONOTONIC, &now);
+               if (timespec_subtract(&diff, &next, &now)) {
+                       print_progress();
+                       next.tv_nsec += 100000000;
+                       while (next.tv_nsec >= 1000000000) {
+                               next.tv_nsec -= 1000000000;
+                               next.tv_sec++;
+                       }
+               }
+               if (opt.count != 0 && count >= opt.count) {
+                       if (allsent.tv_sec == 0)
+                               allsent = now;
+                       timespec_subtract(&diff, &now, &allsent);
+                       if (diff.tv_sec >= 1)
+                               finish_flag = 1;
+               }
+       }
+       print_progress();
+       if (!opt.quiet)
+               printf("\n");
+
+       stats.lost = msg_in_progress;
 
        pthread_join(thread, NULL);
 
-       if (opt.histogram_fn) {
-               histogram_fprint(&histogram, fhist);
-               fclose(fhist);
-       }
+       close(completion_pipe[0]);
+       close(completion_pipe[1]);
+
+       histogram_fprint(&histogram, opt.f_hist);
+       fclose(opt.f_hist);
+       fclose(opt.f_msgs);
+
+
+       fprintf(opt.f_stat, "cmdline='");
+       for (i=0; i<argc; i++)
+               fprintf(opt.f_stat, "%s%s", argv[i], i < argc-1 ? " " : "");
+       fprintf(opt.f_stat, "'\n");
+
+       timespec_subtract(&diff, &stats.tac, &stats.tic);
+       fprintf(opt.f_stat, "duration=%s # seconds\n", tstamp_str(NULL, &diff));
        
+       fprintf(opt.f_stat, "sent=%d\n", count);
+       fprintf(opt.f_stat, "overrun=%d\n", stats.overrun);
+       if (stats.overrun && !opt.quiet)
+               printf("overrun=%d\n", stats.overrun);
+       fprintf(opt.f_stat, "enobufs=%d\n", stats.enobufs);
+       if (stats.enobufs && !opt.quiet)
+               printf("enobufs=%d\n", stats.enobufs);
+       fprintf(opt.f_stat, "lost=%d\n", stats.lost);
+       if (stats.lost && !opt.quiet)
+               printf("lost=%d\n", stats.lost);
+       fprintf(opt.f_stat, "timeouts=%d\n", stats.timeouts);
+       if (stats.timeouts && !opt.quiet)
+               printf("timeouts=%d\n", stats.timeouts);
+       fprintf(opt.f_stat, "invalid_frame=%d\n", stats.timeouts);
+       if (stats.timeouts && !opt.quiet)
+               printf("invalid_frame=%d\n", stats.timeouts);
+
+       fclose(opt.f_stat);
+
        return 0;
 }