X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvpp%2Fstats%2Fstat_segment.c;h=0e3fa415bb8e4631ae44be472b3e1b7e4c2f7a87;hb=2c8e0023f91882e53f06eb99c901b97fe013f981;hp=303d7040c94236232ac82ea64b8164700069bbb4;hpb=d991a798ff5eb6d151b6641e61fefc6315bab0ac;p=vpp.git diff --git a/src/vpp/stats/stat_segment.c b/src/vpp/stats/stat_segment.c index 303d7040c94..0e3fa415bb8 100644 --- a/src/vpp/stats/stat_segment.c +++ b/src/vpp/stats/stat_segment.c @@ -60,24 +60,17 @@ vlib_stats_push_heap (void *old) } static u32 -lookup_or_create_hash_index (u8 * name, u32 next_vector_index) +lookup_hash_index (u8 * name) { stat_segment_main_t *sm = &stat_segment_main; - u32 index; + u32 index = STAT_SEGMENT_INDEX_INVALID; hash_pair_t *hp; /* Must be called in the context of the main heap */ ASSERT (clib_mem_get_heap () != sm->heap); hp = hash_get_pair (sm->directory_vector_by_name, name); - if (!hp) - { - /* we allocate our private copy of 'name' */ - hash_set (sm->directory_vector_by_name, format (0, "%s%c", name, 0), - next_vector_index); - index = next_vector_index; - } - else + if (hp) { index = hp->value[0]; } @@ -85,6 +78,76 @@ lookup_or_create_hash_index (u8 * name, u32 next_vector_index) return index; } +static void +create_hash_index (u8 * name, u32 index) +{ + stat_segment_main_t *sm = &stat_segment_main; + + /* Must be called in the context of the main heap */ + ASSERT (clib_mem_get_heap () != sm->heap); + + hash_set (sm->directory_vector_by_name, format (0, "%s%c", name, 0), index); +} + +static u32 +vlib_stats_get_next_vector_index () +{ + stat_segment_main_t *sm = &stat_segment_main; + u32 next_vector_index = vec_len (sm->directory_vector); + + ssize_t i; + vec_foreach_index_backwards (i, sm->directory_vector) + { + if (sm->directory_vector[i].type == STAT_DIR_TYPE_EMPTY) + { + next_vector_index = i; + break; + } + } + + return next_vector_index; +} + +static u32 +vlib_stats_create_counter (stat_segment_directory_entry_t * e, void *oldheap) +{ + stat_segment_main_t *sm = &stat_segment_main; + + ASSERT (clib_mem_get_heap () == sm->heap); + + u32 index = vlib_stats_get_next_vector_index (); + + clib_mem_set_heap (oldheap); + create_hash_index ((u8 *) e->name, index); + clib_mem_set_heap (sm->heap); + + vec_validate (sm->directory_vector, index); + sm->directory_vector[index] = *e; + + return index; +} + +static void +vlib_stats_delete_counter (u32 index, void *oldheap) +{ + stat_segment_main_t *sm = &stat_segment_main; + stat_segment_directory_entry_t *e; + + ASSERT (clib_mem_get_heap () == sm->heap); + + if (index > vec_len (sm->directory_vector)) + return; + + e = &sm->directory_vector[index]; + + clib_mem_set_heap (oldheap); + hash_unset (sm->directory_vector_by_name, &e->name); + clib_mem_set_heap (sm->heap); + + memset (e, 0, sizeof (*e)); + e->type = STAT_DIR_TYPE_EMPTY; +} + void vlib_stats_pop_heap (void *cm_arg, void *oldheap, u32 cindex, stat_directory_type_t type) @@ -109,20 +172,18 @@ vlib_stats_pop_heap (void *cm_arg, void *oldheap, u32 cindex, /* Lookup hash-table is on the main heap */ stat_segment_name = cm->stat_segment_name ? cm->stat_segment_name : cm->name; - u32 next_vector_index = vec_len (sm->directory_vector); clib_mem_set_heap (oldheap); /* Exit stats segment */ - u32 vector_index = lookup_or_create_hash_index ((u8 *) stat_segment_name, - next_vector_index); + u32 vector_index = lookup_hash_index ((u8 *) stat_segment_name); /* Back to stats segment */ clib_mem_set_heap (sm->heap); /* Re-enter stat segment */ /* Update the vector */ - if (vector_index == next_vector_index) + if (vector_index == STAT_SEGMENT_INDEX_INVALID) { /* New */ strncpy (e.name, stat_segment_name, 128 - 1); e.type = type; - vec_add1 (sm->directory_vector, e); + vector_index = vlib_stats_create_counter (&e, oldheap); } stat_segment_directory_entry_t *ep = &sm->directory_vector[vector_index]; @@ -168,23 +229,19 @@ vlib_stats_register_error_index (void *oldheap, u8 * name, u64 * em_vec, ASSERT (shared_header); vlib_stat_segment_lock (); - u32 next_vector_index = vec_len (sm->directory_vector); clib_mem_set_heap (oldheap); /* Exit stats segment */ - - u32 vector_index = lookup_or_create_hash_index (name, - next_vector_index); - + u32 vector_index = lookup_hash_index (name); /* Back to stats segment */ clib_mem_set_heap (sm->heap); /* Re-enter stat segment */ - if (next_vector_index == vector_index) + if (vector_index == STAT_SEGMENT_INDEX_INVALID) { memcpy (e.name, name, vec_len (name)); e.name[vec_len (name)] = '\0'; e.type = STAT_DIR_TYPE_ERROR_INDEX; e.offset = index; e.offset_vector = 0; - vec_add1 (sm->directory_vector, e); + vector_index = vlib_stats_create_counter (&e, oldheap); /* Warn clients to refresh any pointers they might be holding */ shared_header->directory_offset = @@ -216,6 +273,21 @@ stat_validate_counter_vector (stat_segment_directory_entry_t * ep, u32 max) ep->offset_vector = stat_segment_offset (shared_header, offset_vector); } +always_inline void +stat_set_simple_counter (stat_segment_directory_entry_t * ep, + u32 thread_index, u32 index, u64 value) +{ + stat_segment_main_t *sm = &stat_segment_main; + stat_segment_shared_header_t *shared_header = sm->shared_header; + + ASSERT (shared_header); + counter_t *offset_vector = + stat_segment_pointer (sm->shared_header, ep->offset_vector); + counter_t *cb = + stat_segment_pointer (sm->shared_header, offset_vector[thread_index]); + cb[index] = value; +} + void vlib_stats_pop_heap2 (u64 * error_vector, u32 thread_index, void *oldheap, int lock) @@ -272,18 +344,10 @@ vlib_map_stat_segment_init (void) return clib_error_return (0, "stat segment mmap failure"); void *heap; -#if USE_DLMALLOC == 0 - heap = mheap_alloc_with_flags (((u8 *) memaddr) + getpagesize (), - memory_size - getpagesize (), - MHEAP_FLAG_DISABLE_VM | - MHEAP_FLAG_THREAD_SAFE); -#else heap = create_mspace_with_base (((u8 *) memaddr) + getpagesize (), memory_size - getpagesize (), 1 /* locked */ ); mspace_disable_expand (heap); -#endif - sm->heap = heap; sm->memfd = mfd; @@ -358,6 +422,14 @@ format_stat_dir_entry (u8 * s, va_list * args) type_name = "ErrIndex"; break; + case STAT_DIR_TYPE_NAME_VECTOR: + type_name = "NameVector"; + break; + + case STAT_DIR_TYPE_EMPTY: + type_name = "empty"; + break; + default: type_name = "illegal!"; break; @@ -391,6 +463,11 @@ show_stat_segment_command_fn (vlib_main_t * vm, for (i = 0; i < vec_len (show_data); i++) { + stat_segment_directory_entry_t *ep = vec_elt_at_index (show_data, i); + + if (ep->type == STAT_DIR_TYPE_EMPTY) + continue; + vlib_cli_output (vm, "%-100U", format_stat_dir_entry, vec_elt_at_index (show_data, i)); } @@ -527,20 +604,21 @@ update_node_counters (stat_segment_main_t * sm) c[n->index] = n->stats_total.suspends - n->stats_last_clear.suspends; } + vec_free (node_dups[j]); } + vec_free (node_dups); + vec_free (stat_vms); } static void do_stat_segment_updates (stat_segment_main_t * sm) { - stat_segment_shared_header_t *shared_header = sm->shared_header; vlib_main_t *vm = vlib_mains[0]; f64 vector_rate; u64 input_packets; f64 dt, now; vlib_main_t *this_vlib_main; - int i, start; - counter_t **counters; + int i; static int num_worker_threads_set; /* @@ -550,13 +628,14 @@ do_stat_segment_updates (stat_segment_main_t * sm) */ if (PREDICT_FALSE (num_worker_threads_set == 0)) { - sm->directory_vector[STAT_COUNTER_NUM_WORKER_THREADS].value = - vec_len (vlib_mains) > 1 ? vec_len (vlib_mains) - 1 : 1; + void *oldheap = clib_mem_set_heap (sm->heap); + vlib_stat_segment_lock (); stat_validate_counter_vector (&sm->directory_vector - [STAT_COUNTER_VECTOR_RATE_PER_WORKER], - vec_len (vlib_mains)); + [STAT_COUNTER_VECTOR_RATE_PER_WORKER], 0); num_worker_threads_set = 1; + vlib_stat_segment_unlock (); + clib_mem_set_heap (oldheap); } /* @@ -565,29 +644,26 @@ do_stat_segment_updates (stat_segment_main_t * sm) */ vector_rate = 0.0; - counters = - stat_segment_pointer (shared_header, - sm->directory_vector - [STAT_COUNTER_VECTOR_RATE_PER_WORKER].offset); - - start = vec_len (vlib_mains) > 1 ? 1 : 0; - - for (i = start; i < vec_len (vlib_mains); i++) + for (i = 0; i < vec_len (vlib_mains); i++) { f64 this_vector_rate; this_vlib_main = vlib_mains[i]; - this_vector_rate = vlib_last_vector_length_per_node (this_vlib_main); + this_vector_rate = vlib_internal_node_vector_rate (this_vlib_main); + vlib_clear_internal_node_vector_rate (this_vlib_main); + vector_rate += this_vector_rate; /* Set the per-worker rate */ - counters[i - start][0] = this_vector_rate; + stat_set_simple_counter (&sm->directory_vector + [STAT_COUNTER_VECTOR_RATE_PER_WORKER], i, 0, + this_vector_rate); } /* And set the system average rate */ - vector_rate /= (f64) (i - start); + vector_rate /= (f64) (i > 1 ? i - 1 : 1); sm->directory_vector[STAT_COUNTER_VECTOR_RATE].value = vector_rate; @@ -691,19 +767,23 @@ stats_segment_socket_exit (vlib_main_t * vm) VLIB_MAIN_LOOP_EXIT_FUNCTION (stats_segment_socket_exit); +/* Overrides weak reference in vlib:node_cli.c */ +f64 +vlib_get_stat_segment_update_rate (void) +{ + return stat_segment_main.update_interval; +} + static uword stat_segment_collector_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { stat_segment_main_t *sm = &stat_segment_main; - /* Wait for Godot... */ - f64 sleep_duration = 10; - while (1) { do_stat_segment_updates (sm); - vlib_process_suspend (vm, sleep_duration); + vlib_process_suspend (vm, sm->update_interval); } return 0; /* or not */ } @@ -715,8 +795,8 @@ statseg_init (vlib_main_t * vm) /* set default socket file name when statseg config stanza is empty. */ if (!vec_len (sm->socket_name)) - sm->socket_name = format (0, "%s/%s", vlib_unix_get_runtime_dir (), - STAT_SEGMENT_SOCKET_FILENAME); + sm->socket_name = format (0, "%s/%s%c", vlib_unix_get_runtime_dir (), + STAT_SEGMENT_SOCKET_FILENAME, 0); return stats_segment_socket_init (); } @@ -727,7 +807,6 @@ VLIB_INIT_FUNCTION (statseg_init) = }; /* *INDENT-ON* */ - clib_error_t * stat_segment_register_gauge (u8 * name, stat_segment_update_fn update_fn, u32 caller_index) @@ -740,21 +819,18 @@ stat_segment_register_gauge (u8 * name, stat_segment_update_fn update_fn, ASSERT (shared_header); - u32 next_vector_index = vec_len (sm->directory_vector); - u32 vector_index = lookup_or_create_hash_index (name, - next_vector_index); + u32 vector_index = lookup_hash_index (name); - if (vector_index < next_vector_index) /* Already registered */ - return clib_error_return (0, "%v is alreadty registered", name); - - oldheap = vlib_stats_push_heap (NULL); - vlib_stat_segment_lock (); + if (vector_index != STAT_SEGMENT_INDEX_INVALID) /* Already registered */ + return clib_error_return (0, "%v is already registered", name); memset (&e, 0, sizeof (e)); e.type = STAT_DIR_TYPE_SCALAR_INDEX; - memcpy (e.name, name, vec_len (name)); - vec_add1 (sm->directory_vector, e); + + oldheap = vlib_stats_push_heap (NULL); + vlib_stat_segment_lock (); + vector_index = vlib_stats_create_counter (&e, oldheap); shared_header->directory_offset = stat_segment_offset (shared_header, sm->directory_vector); @@ -766,15 +842,88 @@ stat_segment_register_gauge (u8 * name, stat_segment_update_fn update_fn, pool_get (sm->gauges, gauge); gauge->fn = update_fn; gauge->caller_index = caller_index; - gauge->directory_index = next_vector_index; + gauge->directory_index = vector_index; return NULL; } +clib_error_t * +stat_segment_register_state_counter (u8 * name, u32 * index) +{ + stat_segment_main_t *sm = &stat_segment_main; + stat_segment_shared_header_t *shared_header = sm->shared_header; + void *oldheap; + stat_segment_directory_entry_t e; + + ASSERT (shared_header); + ASSERT (vlib_get_thread_index () == 0); + + u32 vector_index = lookup_hash_index (name); + + if (vector_index != STAT_SEGMENT_INDEX_INVALID) /* Already registered */ + return clib_error_return (0, "%v is already registered", name); + + memset (&e, 0, sizeof (e)); + e.type = STAT_DIR_TYPE_SCALAR_INDEX; + memcpy (e.name, name, vec_len (name)); + + oldheap = vlib_stats_push_heap (NULL); + vlib_stat_segment_lock (); + + vector_index = vlib_stats_create_counter (&e, oldheap); + + shared_header->directory_offset = + stat_segment_offset (shared_header, sm->directory_vector); + + vlib_stat_segment_unlock (); + clib_mem_set_heap (oldheap); + + *index = vector_index; + return 0; +} + +clib_error_t * +stat_segment_deregister_state_counter (u32 index) +{ + stat_segment_main_t *sm = &stat_segment_main; + stat_segment_shared_header_t *shared_header = sm->shared_header; + stat_segment_directory_entry_t *e; + void *oldheap; + + ASSERT (shared_header); + + if (index > vec_len (sm->directory_vector)) + return clib_error_return (0, "%u index does not exist", index); + + e = &sm->directory_vector[index]; + if (e->type != STAT_DIR_TYPE_SCALAR_INDEX) + return clib_error_return (0, "%u index cannot be deleted", index); + + oldheap = vlib_stats_push_heap (NULL); + vlib_stat_segment_lock (); + + vlib_stats_delete_counter (index, oldheap); + + vlib_stat_segment_unlock (); + clib_mem_set_heap (oldheap); + + return 0; +} + +void +stat_segment_set_state_counter (u32 index, u64 value) +{ + stat_segment_main_t *sm = &stat_segment_main; + + ASSERT (index < vec_len (sm->directory_vector)); + sm->directory_vector[index].index = value; +} + static clib_error_t * statseg_config (vlib_main_t * vm, unformat_input_t * input) { stat_segment_main_t *sm = &stat_segment_main; + sm->update_interval = 10.0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { @@ -790,6 +939,8 @@ statseg_config (vlib_main_t * vm, unformat_input_t * input) sm->node_counters_enabled = 1; else if (unformat (input, "per-node-counters off")) sm->node_counters_enabled = 0; + else if (unformat (input, "update-interval %f", &sm->update_interval)) + ; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); @@ -805,6 +956,8 @@ statseg_config (vlib_main_t * vm, unformat_input_t * input) return 0; } +VLIB_EARLY_CONFIG_FUNCTION (statseg_config, "statseg"); + static clib_error_t * statseg_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) { @@ -873,7 +1026,6 @@ statseg_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) return 0; } -VLIB_EARLY_CONFIG_FUNCTION (statseg_config, "statseg"); VNET_SW_INTERFACE_ADD_DEL_FUNCTION (statseg_sw_interface_add_del); /* *INDENT-OFF* */