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authorDave Barach <dave@barachs.net>2017-05-30 09:30:07 -0400
committerFlorin Coras <florin.coras@gmail.com>2017-06-01 16:02:55 +0000
commit10d8cc6bf92851fcaec4a6b4c6d3554dc1eb2386 (patch)
treec146b324f974aa13499a1d784a96ef96438c9d15 /src/vnet/tcp
parent26261594a0b821770aa0a646cba8399aa6320c2e (diff)
Improve fifo allocator performance
- add option to preallocate fifos in a segment - track active fifos with doubly linked list instead of vector - update udp redirect test code to read fifo pointers from API call instead of digging them up from fifo segment header - input-node based active-open session generator Change-Id: I804b81e99d95f8690d17e12660c6645995e28a9a Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Florin Coras <fcoras@cisco.com> Signed-off-by: Dave Barach <dbarach@cisco.com>
Diffstat (limited to 'src/vnet/tcp')
-rw-r--r--src/vnet/tcp/builtin_client.c330
-rw-r--r--src/vnet/tcp/builtin_client.h13
-rw-r--r--src/vnet/tcp/builtin_http_server.c1
-rw-r--r--src/vnet/tcp/builtin_server.c9
4 files changed, 216 insertions, 137 deletions
diff --git a/src/vnet/tcp/builtin_client.c b/src/vnet/tcp/builtin_client.c
index aaefa7ebb9a..768f0c3c3df 100644
--- a/src/vnet/tcp/builtin_client.c
+++ b/src/vnet/tcp/builtin_client.c
@@ -44,8 +44,6 @@
#undef vl_printfun
#define TCP_BUILTIN_CLIENT_DBG (1)
-#define TCP_BUILTIN_CLIENT_VPP_THREAD (0)
-#define TCP_BUILTIN_CLIENT_PTHREAD (!TCP_BUILTIN_CLIENT_VPP_THREAD)
static void
send_test_chunk (tclient_main_t * tm, session_t * s)
@@ -156,131 +154,76 @@ receive_test_chunk (tclient_main_t * tm, session_t * s)
}
}
-#if TCP_BUILTIN_CLIENT_VPP_THREAD
-#define THREAD_PROTOTYPE static void
-#else
-#define THREAD_PROTOTYPE static void *
-#endif
-
-THREAD_PROTOTYPE
-tclient_thread_fn (void *arg)
+static uword
+builtin_client_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
tclient_main_t *tm = &tclient_main;
+ int my_thread_index = vlib_get_thread_index ();
vl_api_disconnect_session_t *dmp;
session_t *sp;
- struct timespec ts, tsrem;
int i;
- int try_tx, try_rx;
- u32 *session_indices = 0;
- clib_time_t ttime;
- f64 before, after;
- u64 rx_total;
+ int delete_session;
+ u32 *connection_indices;
- clib_time_init (&ttime);
+ connection_indices = tm->connection_index_by_thread[my_thread_index];
- /* stats thread wants no signals. */
- {
- sigset_t s;
- sigfillset (&s);
- pthread_sigmask (SIG_SETMASK, &s, 0);
- }
+ if (tm->run_test == 0 || vec_len (connection_indices) == 0)
+ return 0;
- clib_per_cpu_mheaps[vlib_get_thread_index ()] = clib_per_cpu_mheaps[0];
+ for (i = 0; i < vec_len (connection_indices); i++)
+ {
+ delete_session = 1;
- vec_validate (session_indices, 0);
- vec_reset_length (session_indices);
+ sp = pool_elt_at_index (tm->sessions, connection_indices[i]);
- while (1)
- {
- /* Wait until we're told to get busy */
- while (tm->run_test == 0
- || (tm->ready_connections != tm->expected_connections))
+ if (sp->bytes_to_send > 0)
{
- ts.tv_sec = 0;
- ts.tv_nsec = 100000000;
- while (nanosleep (&ts, &tsrem) < 0)
- ts = tsrem;
+ send_test_chunk (tm, sp);
+ delete_session = 0;
}
- tm->run_test = 0;
- rx_total = 0;
-
- clib_warning ("Start test...");
-
- before = clib_time_now (&ttime);
-
- do
+ if (sp->bytes_to_receive > 0)
{
- do
- {
- try_tx = try_rx = 0;
-
- /* *INDENT-OFF* */
- pool_foreach (sp, tm->sessions,
- ({
- if (sp->bytes_to_send > 0)
- {
- send_test_chunk (tm, sp);
- try_tx = 1;
- }
- }));
- pool_foreach (sp, tm->sessions,
- ({
- if (sp->bytes_to_receive > 0)
- {
- receive_test_chunk (tm, sp);
- try_rx = 1;
- }
- else
- {
- /* Session is complete */
- vec_add1 (session_indices, sp - tm->sessions);
- }
- }));
- /* Terminate any completed sessions */
- if (PREDICT_FALSE (_vec_len(session_indices) != 0))
- {
- for (i = 0; i < _vec_len (session_indices); i++)
- {
- sp = pool_elt_at_index (tm->sessions, session_indices[i]);
- rx_total += sp->bytes_received;
- dmp = vl_msg_api_alloc_as_if_client (sizeof (*dmp));
- memset (dmp, 0, sizeof (*dmp));
- dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
- dmp->client_index = tm->my_client_index;
- dmp->handle = sp->vpp_session_handle;
- vl_msg_api_send_shmem (tm->vl_input_queue, (u8 *) & dmp);
- pool_put (tm->sessions, sp);
- }
- _vec_len(session_indices) = 0;
- }
- /* *INDENT-ON* */
- }
- while (try_tx || try_rx);
+ receive_test_chunk (tm, sp);
+ delete_session = 0;
}
- while (0);
- after = clib_time_now (&ttime);
-
- clib_warning ("Test complete %lld bytes in %.2f secs",
- rx_total, (after - before));
- if ((after - before) != 0.0)
+ if (PREDICT_FALSE (delete_session == 1))
{
- clib_warning ("%.2f bytes/second full-duplex",
- ((f64) rx_total) / (after - before));
- clib_warning ("%.4f gbit/second full-duplex",
- (((f64) rx_total * 8.0) / (after - before)) / 1e9);
+ __sync_fetch_and_add (&tm->rx_total, sp->bytes_received);
+ dmp = vl_msg_api_alloc_as_if_client (sizeof (*dmp));
+ memset (dmp, 0, sizeof (*dmp));
+ dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
+ dmp->client_index = tm->my_client_index;
+ dmp->handle = sp->vpp_session_handle;
+ vl_msg_api_send_shmem (tm->vl_input_queue, (u8 *) & dmp);
+ vec_delete (connection_indices, 1, i);
+ tm->connection_index_by_thread[my_thread_index] =
+ connection_indices;
+ __sync_fetch_and_add (&tm->ready_connections, -1);
+
+ /* Kick the debug CLI process */
+ if (tm->ready_connections == 0)
+ {
+ tm->test_end_time = vlib_time_now (vm);
+ vlib_process_signal_event (vm, tm->cli_node_index,
+ 2, 0 /* data */ );
+ }
}
-
- if (pool_elts (tm->sessions))
- clib_warning ("BUG: %d active sessions remain...",
- pool_elts (tm->sessions));
}
- while (0);
- /* NOTREACHED */
-#if TCP_BUILTIN_CLIENT_PTHREAD
return 0;
-#endif
}
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (builtin_client_node) =
+{
+ .function = builtin_client_node_fn,
+ .name = "builtin-tcp-client",
+ .type = VLIB_NODE_TYPE_INPUT,
+ .state = VLIB_NODE_STATE_DISABLED,
+};
+/* *INDENT-ON* */
+
+
/* So we don't get "no handler for... " msgs */
static void
vl_api_memclnt_create_reply_t_handler (vl_api_memclnt_create_reply_t * mp)
@@ -299,6 +242,7 @@ vl_api_connect_uri_reply_t_handler (vl_api_connect_uri_reply_t * mp)
session_t *session;
u32 session_index;
i32 retval = /* clib_net_to_host_u32 ( */ mp->retval /*) */ ;
+ int i;
if (retval < 0)
{
@@ -332,7 +276,29 @@ vl_api_connect_uri_reply_t_handler (vl_api_connect_uri_reply_t * mp)
/* Add it to the session lookup table */
hash_set (tm->session_index_by_vpp_handles, mp->handle, session_index);
- tm->ready_connections++;
+ if (tm->ready_connections == tm->expected_connections - 1)
+ {
+ vlib_thread_main_t *thread_main = vlib_get_thread_main ();
+ int thread_index;
+
+ thread_index = 0;
+ for (i = 0; i < pool_elts (tm->sessions); i++)
+ {
+ vec_add1 (tm->connection_index_by_thread[thread_index], i);
+ thread_index++;
+ if (thread_index == thread_main->n_vlib_mains)
+ thread_index = 0;
+ }
+ }
+ __sync_fetch_and_add (&tm->ready_connections, 1);
+ if (tm->ready_connections == tm->expected_connections)
+ {
+ tm->run_test = 1;
+ tm->test_start_time = vlib_time_now (tm->vlib_main);
+ /* Signal the CLI process that the action is starting... */
+ vlib_process_signal_event (tm->vlib_main, tm->cli_node_index,
+ 1, 0 /* data */ );
+ }
}
static int
@@ -414,6 +380,7 @@ static int
tcp_test_clients_init (vlib_main_t * vm)
{
tclient_main_t *tm = &tclient_main;
+ vlib_thread_main_t *thread_main = vlib_get_thread_main ();
int i;
tclient_api_hookup (vm);
@@ -429,6 +396,46 @@ tcp_test_clients_init (vlib_main_t * vm)
vec_validate (tm->rx_buf, vec_len (tm->connect_test_data) - 1);
tm->is_init = 1;
+ tm->vlib_main = vm;
+
+ vec_validate (tm->connection_index_by_thread, thread_main->n_vlib_mains);
+ return 0;
+}
+
+static int
+builtin_session_connected_callback (u32 app_index, u32 api_context,
+ stream_session_t * s, u8 is_fail)
+{
+ vl_api_connect_uri_reply_t _m, *mp = &_m;
+ unix_shared_memory_queue_t *q;
+ application_t *app;
+ unix_shared_memory_queue_t *vpp_queue;
+
+ app = application_get (app_index);
+ q = vl_api_client_index_to_input_queue (app->api_client_index);
+
+ if (!q)
+ return -1;
+
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_CONNECT_URI_REPLY);
+ mp->context = api_context;
+ if (!is_fail)
+ {
+ vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
+ mp->server_rx_fifo = pointer_to_uword (s->server_rx_fifo);
+ mp->server_tx_fifo = pointer_to_uword (s->server_tx_fifo);
+ mp->handle = stream_session_handle (s);
+ mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
+ mp->retval = 0;
+ s->session_state = SESSION_STATE_READY;
+ }
+ else
+ {
+ mp->retval = clib_host_to_net_u32 (VNET_API_ERROR_SESSION_CONNECT_FAIL);
+ }
+
+ vl_api_connect_uri_reply_t_handler (mp);
return 0;
}
@@ -461,7 +468,7 @@ builtin_server_rx_callback (stream_session_t * s)
static session_cb_vft_t builtin_clients =
{
.session_reset_callback = builtin_session_reset_callback,
- .session_connected_callback = send_session_connected_callback,
+ .session_connected_callback = builtin_session_connected_callback,
.session_accept_callback = builtin_session_create_callback,
.session_disconnect_callback = builtin_session_disconnect_callback,
.builtin_server_rx_callback = builtin_server_rx_callback
@@ -502,11 +509,16 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
vlib_cli_command_t * cmd)
{
tclient_main_t *tm = &tclient_main;
+ vlib_thread_main_t *thread_main = vlib_get_thread_main ();
+ uword *event_data = 0;
+ uword event_type;
u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
u8 *uri;
u32 n_clients = 1;
int i;
u64 tmp;
+ f64 cli_timeout = 20.0;
+ f64 delta;
tm->bytes_to_send = 8192;
vec_free (tm->connect_uri);
@@ -523,6 +535,8 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
;
else if (unformat (input, "uri %s", &tm->connect_uri))
;
+ else if (unformat (input, "cli-timeout %f", &cli_timeout))
+ ;
else
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
@@ -536,6 +550,7 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
tm->ready_connections = 0;
tm->expected_connections = n_clients;
+ tm->rx_total = 0;
uri = connect_uri;
if (tm->connect_uri)
@@ -556,41 +571,100 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
}
#endif
vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
- attach_builtin_test_clients ();
+ if (tm->test_client_attached == 0)
+ attach_builtin_test_clients ();
+ tm->test_client_attached = 1;
+
+ /* Turn on the builtin client input nodes */
+ for (i = 0; i < thread_main->n_vlib_mains; i++)
+ vlib_node_set_state (vlib_mains[i], builtin_client_node.index,
+ VLIB_NODE_STATE_POLLING);
- /* Fire off connect requests, in something approaching a normal manner */
+ tm->cli_node_index = vlib_get_current_process (vm)->node_runtime.node_index;
+
+ /* Fire off connect requests */
for (i = 0; i < n_clients; i++)
{
- vl_api_connect_uri_t *cmp;
- cmp = vl_msg_api_alloc_as_if_client (sizeof (*cmp));
+ vl_api_connect_uri_t _cmp, *cmp = &_cmp;
+ void vl_api_connect_uri_t_handler (vl_api_connect_uri_t * cmp);
+
memset (cmp, 0, sizeof (*cmp));
cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
cmp->client_index = tm->my_client_index;
cmp->context = ntohl (0xfeedface);
memcpy (cmp->uri, uri, strlen ((char *) uri) + 1);
- vl_msg_api_send_shmem (tm->vl_input_queue, (u8 *) & cmp);
+
+ vl_api_connect_uri_t_handler (cmp);
+ /* Crude pacing for call setups, 100k/sec */
+ vlib_process_suspend (vm, 10e-6);
+ }
+
+ /* Park until the sessions come up, or ten seconds elapse... */
+ vlib_process_wait_for_event_or_clock (vm, 10.0 /* timeout, seconds */ );
+ event_type = vlib_process_get_events (vm, &event_data);
+
+ switch (event_type)
+ {
+ case ~0:
+ vlib_cli_output (vm, "Timeout with only %d sessions active...",
+ tm->ready_connections);
+ goto cleanup;
+
+ case 1:
+ vlib_cli_output (vm, "Test started at %.6f", tm->test_start_time);
+ break;
+
+ default:
+ vlib_cli_output (vm, "unexpected event(1): %d", event_type);
+ goto cleanup;
}
- tm->run_test = 1;
+ /* Now wait for the sessions to finish... */
+ vlib_process_wait_for_event_or_clock (vm, cli_timeout);
+ event_type = vlib_process_get_events (vm, &event_data);
+
+ switch (event_type)
+ {
+ case ~0:
+ vlib_cli_output (vm, "Timeout with %d sessions still active...",
+ tm->ready_connections);
+ goto cleanup;
+
+ case 2:
+ vlib_cli_output (vm, "Test finished at %.6f", tm->test_end_time);
+ break;
+
+ default:
+ vlib_cli_output (vm, "unexpected event(2): %d", event_type);
+ goto cleanup;
+ }
+
+ delta = tm->test_end_time - tm->test_start_time;
+
+ if (delta != 0.0)
+ {
+ vlib_cli_output (vm,
+ "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds",
+ tm->rx_total, tm->rx_total / (1ULL << 20),
+ tm->rx_total / (1ULL << 30), delta);
+ vlib_cli_output (vm, "%.2f bytes/second full-duplex",
+ ((f64) tm->rx_total) / (delta));
+ vlib_cli_output (vm, "%.4f gbit/second full-duplex",
+ (((f64) tm->rx_total * 8.0) / delta / 1e9));
+ }
+ else
+ vlib_cli_output (vm, "zero delta-t?");
+
+cleanup:
+ pool_free (tm->sessions);
+ for (i = 0; i < vec_len (tm->connection_index_by_thread); i++)
+ vec_reset_length (tm->connection_index_by_thread[i]);
return 0;
}
/* *INDENT-OFF* */
-#if TCP_BUILTIN_CLIENT_VPP_THREAD
-VLIB_REGISTER_THREAD (builtin_client_reg, static) =
-{
- .name = "tcp-builtin-client",
- .function = tclient_thread_fn,
- .fixed_count = 1,
- .count = 1,
- .no_data_structure_clone = 1,
-};
-#endif
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
VLIB_CLI_COMMAND (test_clients_command, static) =
{
.path = "test tcp clients",
diff --git a/src/vnet/tcp/builtin_client.h b/src/vnet/tcp/builtin_client.h
index 57d112e6572..d5d79e53a22 100644
--- a/src/vnet/tcp/builtin_client.h
+++ b/src/vnet/tcp/builtin_client.h
@@ -83,14 +83,18 @@ typedef struct
pid_t my_pid;
- /* For deadman timers */
- clib_time_t clib_time;
+ f64 test_start_time;
+ f64 test_end_time;
- /* Connection counts */
u32 expected_connections;
+ u32 **connection_index_by_thread;
volatile u32 ready_connections;
+ volatile u32 finished_connections;
- /* Signal variables */
+ volatile u64 rx_total;
+ u32 cli_node_index;
+
+ /* Signal variable */
volatile int run_test;
/* Bytes to send */
@@ -107,6 +111,7 @@ typedef struct
u8 test_return_packets;
u8 is_init;
+ u8 test_client_attached;
u32 node_index;
diff --git a/src/vnet/tcp/builtin_http_server.c b/src/vnet/tcp/builtin_http_server.c
index 763a46e9590..8b4801cd49e 100644
--- a/src/vnet/tcp/builtin_http_server.c
+++ b/src/vnet/tcp/builtin_http_server.c
@@ -513,6 +513,7 @@ server_attach ()
a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 8 << 10;
a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 32 << 10;
a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+ a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
a->segment_name = segment_name;
a->segment_name_length = ARRAY_LEN (segment_name);
diff --git a/src/vnet/tcp/builtin_server.c b/src/vnet/tcp/builtin_server.c
index 64fc4a7111a..4f0e211c7be 100644
--- a/src/vnet/tcp/builtin_server.c
+++ b/src/vnet/tcp/builtin_server.c
@@ -62,7 +62,6 @@ int
builtin_session_accept_callback (stream_session_t * s)
{
builtin_server_main_t *bsm = &builtin_server_main;
- clib_warning ("called...");
bsm->vpp_queue[s->thread_index] =
session_manager_get_vpp_event_queue (s->thread_index);
@@ -76,7 +75,6 @@ builtin_session_disconnect_callback (stream_session_t * s)
{
builtin_server_main_t *bsm = &builtin_server_main;
vnet_disconnect_args_t _a, *a = &_a;
- clib_warning ("called...");
a->handle = stream_session_handle (s);
a->app_index = bsm->app_index;
@@ -280,10 +278,11 @@ server_attach ()
a->api_client_index = bsm->my_client_index;
a->session_cb_vft = &builtin_session_cb_vft;
a->options = options;
- a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 128 << 20;
- a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 1 << 16;
- a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 1 << 16;
+ a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 512 << 20;
+ a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 64 << 10;
+ a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 64 << 10;
a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+ a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 8192;
a->segment_name = segment_name;
a->segment_name_length = ARRAY_LEN (segment_name);