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Performance improvements.

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This commit is contained in:
Jef Poskanzer 2013-11-15 09:54:21 -08:00
parent 37ba3f73dd
commit 7bcbb1f653
3 changed files with 25 additions and 15 deletions
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7
src/iperf_api.c
View File

@ -772,10 +772,13 @@ iperf_check_throttle(struct iperf_stream *sp, struct timeval *nowP)
seconds = timeval_diff(&sp->result->start_time, nowP);
bits_per_second = sp->result->bytes_sent * 8 / seconds;
if (bits_per_second < sp->test->settings->rate)
if (bits_per_second < sp->test->settings->rate) {
sp->green_light = 1;
else
FD_SET(sp->socket, &sp->test->write_set);
} else {
sp->green_light = 0;
FD_CLR(sp->socket, &sp->test->write_set);
}
}
int

18
src/iperf_client_api.c
View File

@ -319,9 +319,10 @@ iperf_run_client(struct iperf_test * test)
int startup;
#define CM_SELECT 1
#define CM_SIGALRM 2
int result;
int result = 0;
fd_set read_set, write_set;
struct timeval now;
struct timeval* timeout = NULL;
/* Termination signals. */
iperf_catch_sigend(sigend_handler);
@ -355,13 +356,14 @@ iperf_run_client(struct iperf_test * test)
startup = 1;
concurrency_model = CM_SELECT; /* always start in select mode */
(void) gettimeofday(&now, NULL);
while (test->state != IPERF_DONE) {
if (concurrency_model == CM_SELECT) {
memcpy(&read_set, &test->read_set, sizeof(fd_set));
memcpy(&write_set, &test->write_set, sizeof(fd_set));
result = select(test->max_fd + 1, &read_set, &write_set, NULL, tmr_timeout(&now));
(void) gettimeofday(&now, NULL);
timeout = tmr_timeout(&now);
result = select(test->max_fd + 1, &read_set, &write_set, NULL, timeout);
if (result < 0 && errno != EINTR) {
i_errno = IESELECT;
return -1;
@ -402,17 +404,17 @@ iperf_run_client(struct iperf_test * test)
if (test->reverse) {
// Reverse mode. Client receives.
if (iperf_recv(test, &read_set) < 0) {
if (iperf_recv(test, &read_set) < 0)
return -1;
}
} else {
// Regular mode. Client sends.
if (iperf_send(test, concurrency_model == CM_SIGALRM ? NULL : &write_set) < 0) {
if (iperf_send(test, concurrency_model == CM_SIGALRM ? NULL : &write_set) < 0)
return -1;
}
}
if (concurrency_model == CM_SELECT ||
if ((concurrency_model == CM_SELECT &&
(result == 0 ||
(timeout != NULL && timeout->tv_sec == 0 && timeout->tv_usec == 0))) ||
(concurrency_model == CM_SIGALRM && sigalrm_triggered)) {
/* Run the timers. */
(void) gettimeofday(&now, NULL);

15
src/iperf_server_api.c
View File

@ -417,6 +417,7 @@ iperf_run_server(struct iperf_test *test)
fd_set read_set, write_set;
struct iperf_stream *sp;
struct timeval now;
struct timeval* timeout;
/* Termination signals. */
iperf_catch_sigend(sigend_handler);
@ -452,13 +453,14 @@ iperf_run_server(struct iperf_test *test)
test->state = IPERF_START;
streams_accepted = 0;
(void) gettimeofday(&now, NULL);
while (test->state != IPERF_DONE) {
memcpy(&read_set, &test->read_set, sizeof(fd_set));
memcpy(&write_set, &test->write_set, sizeof(fd_set));
result = select(test->max_fd + 1, &read_set, &write_set, NULL, tmr_timeout(&now));
(void) gettimeofday(&now, NULL);
timeout = tmr_timeout(&now);
result = select(test->max_fd + 1, &read_set, &write_set, NULL, timeout);
if (result < 0 && errno != EINTR) {
cleanup_server(test);
i_errno = IESELECT;
@ -570,9 +572,12 @@ iperf_run_server(struct iperf_test *test)
}
}
/* Run the timers. */
(void) gettimeofday(&now, NULL);
tmr_run(&now);
if (result == 0 ||
(timeout != NULL && timeout->tv_sec == 0 && timeout->tv_usec == 0)) {
/* Run the timers. */
(void) gettimeofday(&now, NULL);
tmr_run(&now);
}
}
}
}