unsigned timeout_ms;
unsigned count;
unsigned oneattime;
- FILE *file;
- FILE *histogram;
+ char *name;
int length;
int userhist;
+ int quiet;
+
+ /* Temporary variables */
+ FILE *f_msgs;
+ FILE *f_hist;
+ FILE *f_stat;
};
struct options opt = {
struct {
unsigned enobufs;
unsigned overrun;
+ unsigned lost;
+ struct timespec tic, tac;
+ unsigned timeouts;
} stats;
int num_interfaces = 0;
#define S(ts) tstamp_str(local, &ts)
#define DIFF(a, b) (timespec_subtract(&diff, &b, &a), S(diff))
- if (num_interfaces == 2)
+ 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));
- else
+ 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),
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);
}
-int msg_info_store(FILE *f, struct msg_info *mi)
-{
- struct timespec diff;
- void *local = talloc_new (NULL);
- static long num = 0;
-
-#define S(ts) tstamp_str(local, &ts)
-#define DIFF(a, b) (timespec_subtract(&diff, &b, &a), S(diff))
-
- if (num_interfaces == 2)
- fprintf(f, "%ld %d %d %s\n",
- num, mi->id, mi->length,
- DIFF(mi->ts_sent, mi->ts_rx_final_kern));
- else
- fprintf(f, "%ld %d %d %s\n",
- num, mi->id, mi->length,
- DIFF(mi->ts_rx_onwire_kern, mi->ts_rx_final_kern));
-#undef S
-#undef DIFF
- 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. */
static inline unsigned get_msg_latency_us(struct msg_info *mi)
{
struct timespec diff;
- if (num_interfaces == 3)
+ 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);
- else
+ 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;
}
ret = write(socket, &frame, sizeof(frame));
trace_off(ret);
- if (ret == -1)
+ 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;
mi->ts_rx_final = ts_user;
mi->received = frame;
- if (opt.histogram)
- histogram_add(&histogram, get_msg_latency_us(mi));
+ histogram_add(&histogram, get_msg_latency_us(mi));
ret = write(completion_pipe[1], &mi, sizeof(mi));
if (ret == -1)
struct timespec timeout;
struct sockaddr_can addr;
sigset_t set;
+ int consecutive_timeouts = 0;
MEMSET_ZERO(pfd);
set_sched_policy_and_prio(SCHED_FIFO, 40);
-#define SEND() \
- do { \
- ret = send_frame(pfd[0].fd); \
- 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++; \
- } \
- } while (0)
-
- if (opt.oneattime) {
+#define SEND() send_and_check(pfd[0].fd)
+
+ if (opt.oneattime)
SEND();
- count = 1;
- }
+
+ get_tstamp(&stats.tic);
while (!finish_flag &&
(opt.count == 0 || count < opt.count || msg_in_progress != 0)) {
SEND();
}
} else {
- error(1, 0, "poll timeout");
+ /* 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
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;
}
}
+ get_tstamp(&stats.tac);
+
for (i=0; i<num_interfaces; i++)
close(pfd[i].fd);
{ "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, NULL, 'f', "File where to store results", "filename"},
- { "histogram", 'h', POPT_ARG_STRING, NULL, 'h', "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 }
};
{
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>");
case 'd':
num_interfaces++;
break;
- case 'f':
- opt.file = fopen(poptGetOptArg(optCon), "w");
- if (!opt.file)
- error(1, errno, "fopen: %s", poptGetOptArg(optCon));
- break;
- case 'h':
- opt.histogram = fopen(poptGetOptArg(optCon), "w");
- if (!opt.histogram)
- error(1, errno, "fopen: %s", poptGetOptArg(optCon));
- break;
}
}
if (c < -1)
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()
{
- printf("\rSent %5d, in progress %5d", count, msg_in_progress);
- fflush(stdout);
+ 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[])
for (i=0; i<MAX_INFOS; i++)
msg_infos[i].id = -1;
- if (opt.histogram) {
- histogram_init(&histogram, 5000000, 1);
- }
+ histogram_init(&histogram, 5000000, 1);
ret = pipe(completion_pipe);
if (ret == -1)
pthread_create(&thread, 0, measure_thread, NULL);
- struct timespec next, now, diff;
+ 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)) {
ret = read(completion_pipe[0], &mi, sizeof(mi));
if (ret < sizeof(mi))
error(1, errno, "read completion returned %d", ret);
- if (opt.file)
- msg_info_print(opt.file, mi);
+ msg_info_print(opt.f_msgs, mi);
msg_info_free(mi);
completed++;
}
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();
- printf("\n");
+ if (!opt.quiet)
+ printf("\n");
+
+ stats.lost = msg_in_progress;
pthread_join(thread, NULL);
close(completion_pipe[0]);
close(completion_pipe[1]);
- if (opt.histogram) {
- histogram_fprint(&histogram, opt.histogram);
- fclose(opt.histogram);
- }
- if (opt.file)
- fclose(opt.file);
+ 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");
- if (stats.overrun)
+ 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);
- if (stats.enobufs)
+ 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);
+
+ fclose(opt.f_stat);
return 0;
}
projects / can-benchmark.git / blobdiff