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authorFlorin Coras <fcoras@cisco.com>2017-06-09 21:07:32 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-06-19 14:06:34 +0000
commitf03a59ab008908f98fd7d1b187a8c0fb78b01add (patch)
tree8ce1ab091e288d5edbc5df712f668e2e4888c90e /src/uri/uri_tcp_test.c
parent328dbc886d7acd3491cff86a7a85176e511acf35 (diff)
Overall tcp performance improvements (VPP-846)
- limit minimum rto per connection - cleanup sack scoreboard - switched svm fifo out-of-order data handling from absolute offsets to relative offsets. - improve cwnd handling when using sacks - add cc event debug stats - improved uri tcp test client/server: bugfixes and added half-duplex mode - expanded builtin client/server - updated uri socket client/server code to work in half-duplex - ensure session node unsets fifo event for empty fifo - fix session detach Change-Id: Ia446972340e32a65e0694ee2844355167d0c170d Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/uri/uri_tcp_test.c')
-rwxr-xr-xsrc/uri/uri_tcp_test.c120
1 files changed, 85 insertions, 35 deletions
diff --git a/src/uri/uri_tcp_test.c b/src/uri/uri_tcp_test.c
index e201a359526..d1694cf4e73 100755
--- a/src/uri/uri_tcp_test.c
+++ b/src/uri/uri_tcp_test.c
@@ -46,6 +46,8 @@ typedef struct
svm_fifo_t *server_tx_fifo;
u64 vpp_session_handle;
+ u64 bytes_received;
+ f64 start;
} session_t;
typedef enum
@@ -174,7 +176,7 @@ wait_for_state_change (uri_tcp_test_main_t * utm, connection_state_t state)
if (utm->state == STATE_FAILED)
return -1;
if (utm->time_to_stop == 1)
- return -1;
+ return 0;
}
clib_warning ("timeout waiting for STATE_READY");
return -1;
@@ -184,7 +186,7 @@ void
application_send_attach (uri_tcp_test_main_t * utm)
{
vl_api_application_attach_t *bmp;
- u32 fifo_size = 3 << 20;
+ u32 fifo_size = 4 << 20;
bmp = vl_msg_api_alloc (sizeof (*bmp));
memset (bmp, 0, sizeof (*bmp));
@@ -344,10 +346,22 @@ vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
}
static void
+session_print_stats (uri_tcp_test_main_t * utm, session_t * session)
+{
+ f64 deltat;
+ u64 bytes;
+
+ deltat = clib_time_now (&utm->clib_time) - session->start;
+ bytes = utm->i_am_master ? session->bytes_received : utm->bytes_to_send;
+ fformat (stdout, "Finished in %.6f\n", deltat);
+ fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9);
+}
+
+static void
vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
{
uri_tcp_test_main_t *utm = &uri_tcp_test_main;
- session_t *session;
+ session_t *session = 0;
vl_api_disconnect_session_reply_t *rmp;
uword *p;
int rv = 0;
@@ -366,7 +380,7 @@ vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
rv = -11;
}
- utm->time_to_stop = 1;
+// utm->time_to_stop = 1;
rmp = vl_msg_api_alloc (sizeof (*rmp));
memset (rmp, 0, sizeof (*rmp));
@@ -375,6 +389,9 @@ vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
rmp->retval = rv;
rmp->handle = mp->handle;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp);
+
+ if (session)
+ session_print_stats (utm, session);
}
static void
@@ -431,14 +448,19 @@ client_handle_fifo_event_rx (uri_tcp_test_main_t * utm,
if (n_read > 0)
{
bytes -= n_read;
- for (i = 0; i < n_read; i++)
+ if (utm->test_return_packets)
{
- if (utm->rx_buf[i] != ((utm->client_bytes_received + i) & 0xff))
+ for (i = 0; i < n_read; i++)
{
- clib_warning ("error at byte %lld, 0x%x not 0x%x",
- utm->client_bytes_received + i,
- utm->rx_buf[i],
- ((utm->client_bytes_received + i) & 0xff));
+ if (utm->rx_buf[i]
+ != ((utm->client_bytes_received + i) & 0xff))
+ {
+ clib_warning ("error at byte %lld, 0x%x not 0x%x",
+ utm->client_bytes_received + i,
+ utm->rx_buf[i],
+ ((utm->client_bytes_received +
+ i) & 0xff));
+ }
}
}
utm->client_bytes_received += n_read;
@@ -545,6 +567,7 @@ vl_api_connect_uri_reply_t_handler (vl_api_connect_uri_reply_t * mp)
session->server_rx_fifo = rx_fifo;
session->server_tx_fifo = tx_fifo;
session->vpp_session_handle = mp->handle;
+ session->start = clib_time_now (&utm->clib_time);
/* Save handle */
utm->connected_session_index = session_index;
@@ -571,7 +594,7 @@ send_test_chunk (uri_tcp_test_main_t * utm, svm_fifo_t * tx_fifo, int mypid,
u64 bytes_sent = 0;
int test_buf_offset = 0;
u32 bytes_to_snd;
- u32 queue_max_chunk = 64 << 10, actual_write;
+ u32 queue_max_chunk = 128 << 10, actual_write;
session_fifo_event_t evt;
static int serial_number = 0;
int rv;
@@ -582,8 +605,8 @@ send_test_chunk (uri_tcp_test_main_t * utm, svm_fifo_t * tx_fifo, int mypid,
while (bytes_to_snd > 0)
{
- actual_write =
- bytes_to_snd > queue_max_chunk ? queue_max_chunk : bytes_to_snd;
+ actual_write = (bytes_to_snd > queue_max_chunk) ?
+ queue_max_chunk : bytes_to_snd;
rv = svm_fifo_enqueue_nowait (tx_fifo, actual_write,
test_data + test_buf_offset);
@@ -635,9 +658,9 @@ client_send_data (uri_tcp_test_main_t * utm)
if (leftover)
send_test_chunk (utm, tx_fifo, mypid, leftover);
- if (utm->test_return_packets)
+ if (!utm->drop_packets)
{
- f64 timeout = clib_time_now (&utm->clib_time) + 2;
+ f64 timeout = clib_time_now (&utm->clib_time) + 10;
/* Wait for the outstanding packets */
while (utm->client_bytes_received <
@@ -698,6 +721,7 @@ int
client_disconnect (uri_tcp_test_main_t * utm)
{
client_send_disconnect (utm);
+ clib_warning ("Sent disconnect");
if (wait_for_state_change (utm, STATE_START))
{
clib_warning ("Disconnect failed");
@@ -721,7 +745,7 @@ client_test (uri_tcp_test_main_t * utm)
}
/* Init test data */
- vec_validate (utm->connect_test_data, 64 * 1024 - 1);
+ vec_validate (utm->connect_test_data, 128 * 1024 - 1);
for (i = 0; i < vec_len (utm->connect_test_data); i++)
utm->connect_test_data[i] = i & 0xff;
@@ -899,6 +923,9 @@ vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
rmp->handle = mp->handle;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp);
+
+ session->bytes_received = 0;
+ session->start = clib_time_now (&utm->clib_time);
}
void
@@ -909,37 +936,50 @@ server_handle_fifo_event_rx (uri_tcp_test_main_t * utm,
int n_read;
session_fifo_event_t evt;
unix_shared_memory_queue_t *q;
- int rv, bytes;
+ session_t *session;
+ int rv;
+ u32 max_dequeue, offset, max_transfer, rx_buf_len;
+ rx_buf_len = vec_len (utm->rx_buf);
rx_fifo = e->fifo;
- tx_fifo = utm->sessions[rx_fifo->client_session_index].server_tx_fifo;
+ session = &utm->sessions[rx_fifo->client_session_index];
+ tx_fifo = session->server_tx_fifo;
- bytes = svm_fifo_max_dequeue (rx_fifo);
+ max_dequeue = svm_fifo_max_dequeue (rx_fifo);
/* Allow enqueuing of a new event */
svm_fifo_unset_event (rx_fifo);
- if (bytes == 0)
- return;
+ if (PREDICT_FALSE (max_dequeue == 0))
+ {
+ return;
+ }
- /* Read the bytes */
+ /* Read the max_dequeue */
do
{
- n_read = svm_fifo_dequeue_nowait (rx_fifo, vec_len (utm->rx_buf),
- utm->rx_buf);
+ max_transfer = clib_min (rx_buf_len, max_dequeue);
+ n_read = svm_fifo_dequeue_nowait (rx_fifo, max_transfer, utm->rx_buf);
if (n_read > 0)
- bytes -= n_read;
-
- if (utm->drop_packets)
- continue;
+ {
+ max_dequeue -= n_read;
+ session->bytes_received += n_read;
+ }
/* Reflect if a non-drop session */
- if (n_read > 0)
+ if (!utm->drop_packets && n_read > 0)
{
+ offset = 0;
do
{
- rv = svm_fifo_enqueue_nowait (tx_fifo, n_read, utm->rx_buf);
+ rv = svm_fifo_enqueue_nowait (tx_fifo, n_read,
+ &utm->rx_buf[offset]);
+ if (rv > 0)
+ {
+ n_read -= rv;
+ offset += rv;
+ }
}
- while (rv <= 0 && !utm->time_to_stop);
+ while ((rv <= 0 || n_read > 0) && !utm->time_to_stop);
/* If event wasn't set, add one */
if (svm_fifo_set_event (tx_fifo))
@@ -951,11 +991,11 @@ server_handle_fifo_event_rx (uri_tcp_test_main_t * utm,
q = utm->vpp_event_queue;
unix_shared_memory_queue_add (q, (u8 *) & evt,
- 0 /* do wait for mutex */ );
+ 1 /* do wait for mutex */ );
}
}
}
- while ((n_read < 0 || bytes > 0) && !utm->time_to_stop);
+ while ((n_read < 0 || max_dequeue > 0) && !utm->time_to_stop);
}
void
@@ -1068,9 +1108,18 @@ vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
mp)
{
uri_tcp_test_main_t *utm = &uri_tcp_test_main;
+ session_t *session;
+
+ if (mp->retval)
+ {
+ clib_warning ("vpp complained about disconnect: %d",
+ ntohl (mp->retval));
+ }
- clib_warning ("retval %d", ntohl (mp->retval));
utm->state = STATE_START;
+ session = pool_elt_at_index (utm->sessions, utm->connected_session_index);
+ if (session)
+ session_print_stats (utm, session);
}
#define foreach_uri_msg \
@@ -1123,7 +1172,7 @@ main (int argc, char **argv)
/* make the main heap thread-safe */
h->flags |= MHEAP_FLAG_THREAD_SAFE;
- vec_validate (utm->rx_buf, 65536);
+ vec_validate (utm->rx_buf, 128 << 10);
utm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
@@ -1186,6 +1235,7 @@ main (int argc, char **argv)
utm->drop_packets = drop_packets;
utm->test_return_packets = test_return_packets;
utm->bytes_to_send = bytes_to_send;
+ utm->time_to_stop = 0;
setup_signal_handlers ();
uri_api_hookup (utm);