#include <signal.h>
#include <math.h>
#include <vppinfra/format.h>
+#include <vppinfra/time_range.h>
+#include <vppinfra/interrupt.h>
#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
-#include <vlib/unix/cj.h>
-DECLARE_CJ_GLOBAL_LOG;
-
-#define FRAME_QUEUE_NELTS 64
+#include <vlib/stat_weak_inlines.h>
u32
vl (void *p)
* imapacts observed timings.
*/
-u32
-elog_global_id_for_msg_name (const char *msg_name)
-{
- uword *p, r;
- static uword *h;
- u8 *name_copy;
-
- if (!h)
- h = hash_create_string (0, sizeof (uword));
-
- p = hash_get_mem (h, msg_name);
- if (p)
- return p[0];
- r = elog_string (&vlib_global_main.elog_main, "%s", msg_name);
-
- name_copy = format (0, "%s%c", msg_name, 0);
-
- hash_set_mem (h, name_copy, r);
-
- return r;
-}
-
static inline void
barrier_trace_sync (f64 t_entry, f64 t_open, f64 t_closed)
{
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-trace-%s-#%d",
- .format_args = "T4i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-trace-%s-#%d",
+ .format_args = "T4i4",
+ };
+
struct
{
u32 caller, count, t_entry, t_open, t_closed;
ed = ELOG_DATA (&vlib_global_main.elog_main, e);
ed->count = (int) vlib_worker_threads[0].barrier_sync_count;
- ed->caller = elog_global_id_for_msg_name
- (vlib_worker_threads[0].barrier_caller);
+ ed->caller = elog_string (&vlib_global_main.elog_main,
+ (char *) vlib_worker_threads[0].barrier_caller);
ed->t_entry = (int) (1000000.0 * t_entry);
ed->t_open = (int) (1000000.0 * t_open);
ed->t_closed = (int) (1000000.0 * t_closed);
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-syncrec-%s-#%d",
- .format_args = "T4i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-syncrec-%s-#%d",
+ .format_args = "T4i4",
+ };
+
struct
{
u32 caller, depth;
ed = ELOG_DATA (&vlib_global_main.elog_main, e);
ed->depth = (int) vlib_worker_threads[0].recursion_level - 1;
- ed->caller = elog_global_id_for_msg_name
- (vlib_worker_threads[0].barrier_caller);
+ ed->caller = elog_string (&vlib_global_main.elog_main,
+ (char *) vlib_worker_threads[0].barrier_caller);
}
static inline void
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-relrrec-#%d",
- .format_args = "i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-relrrec-#%d",
+ .format_args = "i4",
+ };
+
struct
{
u32 depth;
if (!vlib_worker_threads->barrier_elog_enabled)
return;
- /* *INDENT-OFF* */
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "bar-rel-#%d-e%d-u%d-t%d",
- .format_args = "i4i4i4i4",
- };
- /* *INDENT-ON* */
+ ELOG_TYPE_DECLARE (e) = {
+ .format = "bar-rel-#%d-e%d-u%d-t%d",
+ .format_args = "i4i4i4i4",
+ };
+
struct
{
u32 count, t_entry, t_update_main, t_closed_total;
uword
os_get_nthreads (void)
{
- u32 len;
-
- len = vec_len (vlib_thread_stacks);
- if (len == 0)
- return 1;
- else
- return len;
+ return vec_len (vlib_thread_stacks);
}
void
- ((i32) ((*tr1)->no_data_structure_clone)));
}
-static uword *
-clib_sysfs_list_to_bitmap (char *filename)
-{
- FILE *fp;
- uword *r = 0;
-
- fp = fopen (filename, "r");
-
- if (fp != NULL)
- {
- u8 *buffer = 0;
- vec_validate (buffer, 256 - 1);
- if (fgets ((char *) buffer, 256, fp))
- {
- unformat_input_t in;
- unformat_init_string (&in, (char *) buffer,
- strlen ((char *) buffer));
- if (unformat (&in, "%U", unformat_bitmap_list, &r) != 1)
- clib_warning ("unformat_bitmap_list failed");
- unformat_free (&in);
- }
- vec_free (buffer);
- fclose (fp);
- }
- return r;
-}
-
/* Called early in the init sequence */
pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
}
- /* as many threads as stacks... */
- vec_validate_aligned (vlib_worker_threads, vec_len (vlib_thread_stacks) - 1,
- CLIB_CACHE_LINE_BYTES);
-
- /* Preallocate thread 0 */
+ /* Set up thread 0 */
+ vec_validate_aligned (vlib_worker_threads, 0, CLIB_CACHE_LINE_BYTES);
_vec_len (vlib_worker_threads) = 1;
w = vlib_worker_threads;
w->thread_mheap = clib_mem_get_heap ();
w->thread_id = pthread_self ();
tm->n_vlib_mains = 1;
+ vlib_get_thread_core_numa (w, w->cpu_id);
+
if (tm->sched_policy != ~0)
{
struct sched_param sched_param;
{
uword c;
/* *INDENT-OFF* */
- clib_bitmap_foreach (c, tr->coremask, ({
+ clib_bitmap_foreach (c, tr->coremask) {
if (clib_bitmap_get(avail_cpu, c) == 0)
return clib_error_return (0, "cpu %u is not available to be used"
" for the '%s' thread",c, tr->name);
avail_cpu = clib_bitmap_set(avail_cpu, c, 0);
- }));
-/* *INDENT-ON* */
-
+ }
+ /* *INDENT-ON* */
}
else
{
for (j = 0; j < tr->count; j++)
{
+ /* Do not use CPU 0 by default - leave it to the host and IRQs */
+ uword avail_c0 = clib_bitmap_get (avail_cpu, 0);
+ avail_cpu = clib_bitmap_set (avail_cpu, 0, 0);
+
uword c = clib_bitmap_first_set (avail_cpu);
+ /* Use CPU 0 as a last resort */
+ if (c == ~0 && avail_c0)
+ {
+ c = 0;
+ avail_c0 = 0;
+ }
+
if (c == ~0)
return clib_error_return (0,
"no available cpus to be used for"
" the '%s' thread", tr->name);
+ avail_cpu = clib_bitmap_set (avail_cpu, 0, avail_c0);
avail_cpu = clib_bitmap_set (avail_cpu, c, 0);
tr->coremask = clib_bitmap_set (tr->coremask, c, 1);
}
tm->n_vlib_mains = n_vlib_mains;
+ /*
+ * Allocate the remaining worker threads, and thread stack vector slots
+ * from now on, calls to os_get_nthreads() will return the correct
+ * answer.
+ */
vec_validate_aligned (vlib_worker_threads, first_index - 1,
CLIB_CACHE_LINE_BYTES);
-
+ vec_validate (vlib_thread_stacks, vec_len (vlib_worker_threads) - 1);
return 0;
}
__os_thread_index = w - vlib_worker_threads;
+ vlib_process_start_switch_stack (vlib_get_main_by_index (__os_thread_index),
+ 0);
rv = (void *) clib_calljmp
((uword (*)(uword)) w->thread_function,
(uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
return rv;
}
-static void
-vlib_get_thread_core_socket (vlib_worker_thread_t * w, unsigned cpu_id)
+void
+vlib_get_thread_core_numa (vlib_worker_thread_t * w, unsigned cpu_id)
{
const char *sys_cpu_path = "/sys/devices/system/cpu/cpu";
+ const char *sys_node_path = "/sys/devices/system/node/node";
+ clib_bitmap_t *nbmp = 0, *cbmp = 0;
+ u32 node;
u8 *p = 0;
- int core_id = -1, socket_id = -1;
+ int core_id = -1, numa_id = -1;
p = format (p, "%s%u/topology/core_id%c", sys_cpu_path, cpu_id, 0);
clib_sysfs_read ((char *) p, "%d", &core_id);
vec_reset_length (p);
- p =
- format (p, "%s%u/topology/physical_package_id%c", sys_cpu_path, cpu_id,
- 0);
- clib_sysfs_read ((char *) p, "%d", &socket_id);
+
+ /* *INDENT-OFF* */
+ clib_sysfs_read ("/sys/devices/system/node/online", "%U",
+ unformat_bitmap_list, &nbmp);
+ clib_bitmap_foreach (node, nbmp) {
+ p = format (p, "%s%u/cpulist%c", sys_node_path, node, 0);
+ clib_sysfs_read ((char *) p, "%U", unformat_bitmap_list, &cbmp);
+ if (clib_bitmap_get (cbmp, cpu_id))
+ numa_id = node;
+ vec_reset_length (cbmp);
+ vec_reset_length (p);
+ }
+ /* *INDENT-ON* */
+ vec_free (nbmp);
+ vec_free (cbmp);
vec_free (p);
w->core_id = core_id;
- w->socket_id = socket_id;
+ w->numa_id = numa_id;
}
static clib_error_t *
vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned cpu_id)
{
+ clib_mem_main_t *mm = &clib_mem_main;
vlib_thread_main_t *tm = &vlib_thread_main;
void *(*fp_arg) (void *) = fp;
+ void *numa_heap;
w->cpu_id = cpu_id;
- vlib_get_thread_core_socket (w, cpu_id);
+ vlib_get_thread_core_numa (w, cpu_id);
+
+ /* Set up NUMA-bound heap if indicated */
+ if (mm->per_numa_mheaps[w->numa_id] == 0)
+ {
+ /* If the user requested a NUMA heap, create it... */
+ if (tm->numa_heap_size)
+ {
+ clib_mem_set_numa_affinity (w->numa_id, 1 /* force */ );
+ numa_heap = clib_mem_create_heap (0 /* DIY */ , tm->numa_heap_size,
+ 1 /* is_locked */ ,
+ "numa %u heap", w->numa_id);
+ clib_mem_set_default_numa_affinity ();
+ mm->per_numa_mheaps[w->numa_id] = numa_heap;
+ }
+ else
+ {
+ /* Or, use the main heap */
+ mm->per_numa_mheaps[w->numa_id] = w->thread_mheap;
+ }
+ }
+
if (tm->cb.vlib_launch_thread_cb && !w->registration->use_pthreads)
return tm->cb.vlib_launch_thread_cb (fp, (void *) w, cpu_id);
else
static clib_error_t *
start_workers (vlib_main_t * vm)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
int i, j;
vlib_worker_thread_t *w;
vlib_main_t *vm_clone;
vlib_node_runtime_t *rt;
u32 n_vlib_mains = tm->n_vlib_mains;
u32 worker_thread_index;
- u8 *main_heap = clib_mem_get_per_cpu_heap ();
+ clib_mem_heap_t *main_heap = clib_mem_get_per_cpu_heap ();
+ vlib_stats_register_mem_heap (main_heap);
vec_reset_length (vlib_worker_threads);
/* Set up the main thread */
vec_add2_aligned (vlib_worker_threads, w, 1, CLIB_CACHE_LINE_BYTES);
w->elog_track.name = "main thread";
- elog_track_register (&vm->elog_main, &w->elog_track);
+ elog_track_register (vlib_get_elog_main (), &w->elog_track);
if (vec_len (tm->thread_prefix))
{
vlib_set_thread_name ((char *) w->name);
}
- vm->elog_main.lock =
+ vgm->elog_main.lock =
clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
- vm->elog_main.lock[0] = 0;
+ vgm->elog_main.lock[0] = 0;
- if (n_vlib_mains > 1)
- {
- /* Replace hand-crafted length-1 vector with a real vector */
- vlib_mains = 0;
+ clib_callback_data_init (&vm->vlib_node_runtime_perf_callbacks,
+ &vm->worker_thread_main_loop_callback_lock);
- vec_validate_aligned (vlib_mains, tm->n_vlib_mains - 1,
- CLIB_CACHE_LINE_BYTES);
- _vec_len (vlib_mains) = 0;
- vec_add1_aligned (vlib_mains, vm, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (vgm->vlib_mains, n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
+ _vec_len (vgm->vlib_mains) = 0;
+ vec_add1_aligned (vgm->vlib_mains, vm, CLIB_CACHE_LINE_BYTES);
+ if (n_vlib_mains > 1)
+ {
vlib_worker_threads->wait_at_barrier =
clib_mem_alloc_aligned (sizeof (u32), CLIB_CACHE_LINE_BYTES);
vlib_worker_threads->workers_at_barrier =
/* Without update or refork */
*vlib_worker_threads->node_reforks_required = 0;
- vm->need_vlib_worker_thread_node_runtime_update = 0;
+ vgm->need_vlib_worker_thread_node_runtime_update = 0;
/* init timing */
vm->barrier_epoch = 0;
vm->barrier_no_close_before = 0;
worker_thread_index = 1;
+ clib_spinlock_init (&vm->worker_thread_main_loop_callback_lock);
for (i = 0; i < vec_len (tm->registrations); i++)
{
vlib_node_main_t *nm, *nm_clone;
- vlib_buffer_free_list_t *fl_clone, *fl_orig;
- vlib_buffer_free_list_t *orig_freelist_pool;
int k;
tr = tm->registrations[i];
vec_add2 (vlib_worker_threads, w, 1);
/* Currently unused, may not really work */
if (tr->mheap_size)
- {
-#if USE_DLMALLOC == 0
- w->thread_mheap =
- mheap_alloc (0 /* use VM */ , tr->mheap_size);
-#else
- w->thread_mheap = create_mspace (tr->mheap_size,
- 0 /* unlocked */ );
-#endif
- }
+ w->thread_mheap = clib_mem_create_heap (0, tr->mheap_size,
+ /* unlocked */ 0,
+ "%s%d heap",
+ tr->name, k);
else
w->thread_mheap = main_heap;
w->elog_track.name =
(char *) format (0, "%s %d", tr->name, k + 1);
vec_add1 (w->elog_track.name, 0);
- elog_track_register (&vm->elog_main, &w->elog_track);
+ elog_track_register (vlib_get_elog_main (), &w->elog_track);
if (tr->no_data_structure_clone)
continue;
vm_clone = clib_mem_alloc_aligned (sizeof (*vm_clone),
CLIB_CACHE_LINE_BYTES);
- clib_memcpy (vm_clone, vlib_mains[0], sizeof (*vm_clone));
+ clib_memcpy (vm_clone, vlib_get_first_main (),
+ sizeof (*vm_clone));
vm_clone->thread_index = worker_thread_index;
vm_clone->heap_base = w->thread_mheap;
vm_clone->heap_aligned_base = (void *)
(((uword) w->thread_mheap) & ~(VLIB_FRAME_ALIGN - 1));
- vm_clone->init_functions_called =
- hash_create (0, /* value bytes */ 0);
vm_clone->pending_rpc_requests = 0;
vec_validate (vm_clone->pending_rpc_requests, 0);
_vec_len (vm_clone->pending_rpc_requests) = 0;
clib_memset (&vm_clone->random_buffer, 0,
sizeof (vm_clone->random_buffer));
+ clib_spinlock_init
+ (&vm_clone->worker_thread_main_loop_callback_lock);
+ clib_callback_data_init
+ (&vm_clone->vlib_node_runtime_perf_callbacks,
+ &vm_clone->worker_thread_main_loop_callback_lock);
- nm = &vlib_mains[0]->node_main;
+ nm = &vlib_get_first_main ()->node_main;
nm_clone = &vm_clone->node_main;
/* fork next frames array, preserving node runtime indices */
nm_clone->next_frames = vec_dup_aligned (nm->next_frames,
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
vec_dup_aligned (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
CLIB_CACHE_LINE_BYTES);
+ clib_interrupt_init (
+ &nm_clone->interrupts,
+ vec_len (nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT]));
vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
{
vlib_node_t *n = vlib_get_node (vm, rt->node_index);
nm_clone->processes = vec_dup_aligned (nm->processes,
CLIB_CACHE_LINE_BYTES);
- /* zap the (per worker) frame freelists, etc */
- nm_clone->frame_sizes = 0;
+ /* Create per-thread frame freelist */
+ nm_clone->frame_sizes = vec_new (vlib_frame_size_t, 1);
+#ifdef VLIB_SUPPORTS_ARBITRARY_SCALAR_SIZES
nm_clone->frame_size_hash = hash_create (0, sizeof (uword));
+#endif
+ nm_clone->node_by_error = nm->node_by_error;
/* Packet trace buffers are guaranteed to be empty, nothing to do here */
clib_mem_set_heap (oldheap);
- vec_add1_aligned (vlib_mains, vm_clone, CLIB_CACHE_LINE_BYTES);
-
- vm_clone->error_main.counters = vec_dup_aligned
- (vlib_mains[0]->error_main.counters, CLIB_CACHE_LINE_BYTES);
- vm_clone->error_main.counters_last_clear = vec_dup_aligned
- (vlib_mains[0]->error_main.counters_last_clear,
- CLIB_CACHE_LINE_BYTES);
-
- /* Fork the vlib_buffer_main_t free lists, etc. */
- orig_freelist_pool = vm_clone->buffer_free_list_pool;
- vm_clone->buffer_free_list_pool = 0;
-
- /* *INDENT-OFF* */
- pool_foreach (fl_orig, orig_freelist_pool,
- ({
- pool_get_aligned (vm_clone->buffer_free_list_pool,
- fl_clone, CLIB_CACHE_LINE_BYTES);
- ASSERT (fl_orig - orig_freelist_pool
- == fl_clone - vm_clone->buffer_free_list_pool);
-
- fl_clone[0] = fl_orig[0];
- fl_clone->buffers = 0;
- vec_validate(fl_clone->buffers, 0);
- vec_reset_length(fl_clone->buffers);
- fl_clone->n_alloc = 0;
- }));
-/* *INDENT-ON* */
+ vec_add1_aligned (vgm->vlib_mains, vm_clone,
+ CLIB_CACHE_LINE_BYTES);
+
+ /* Switch to the stats segment ... */
+ void *oldheap = vlib_stats_push_heap (0);
+ vm_clone->error_main.counters =
+ vec_dup_aligned (vlib_get_first_main ()->error_main.counters,
+ CLIB_CACHE_LINE_BYTES);
+ vlib_stats_pop_heap2 (vm_clone->error_main.counters,
+ worker_thread_index, oldheap, 1);
+
+ vm_clone->error_main.counters_last_clear = vec_dup_aligned (
+ vlib_get_first_main ()->error_main.counters_last_clear,
+ CLIB_CACHE_LINE_BYTES);
worker_thread_index++;
}
vec_add2 (vlib_worker_threads, w, 1);
if (tr->mheap_size)
{
-#if USE_DLMALLOC == 0
- w->thread_mheap =
- mheap_alloc (0 /* use VM */ , tr->mheap_size);
-#else
- w->thread_mheap =
- create_mspace (tr->mheap_size, 0 /* locked */ );
-#endif
+ w->thread_mheap = clib_mem_create_heap (0, tr->mheap_size,
+ /* locked */ 0,
+ "%s%d heap",
+ tr->name, j);
}
else
w->thread_mheap = main_heap;
(char *) format (0, "%s %d", tr->name, j + 1);
w->registration = tr;
vec_add1 (w->elog_track.name, 0);
- elog_track_register (&vm->elog_main, &w->elog_track);
+ elog_track_register (vlib_get_elog_main (), &w->elog_track);
}
}
}
{
uword c;
/* *INDENT-OFF* */
- clib_bitmap_foreach (c, tr->coremask, ({
+ clib_bitmap_foreach (c, tr->coremask) {
w = vlib_worker_threads + worker_thread_index++;
err = vlib_launch_thread_int (vlib_worker_thread_bootstrap_fn,
w, c);
if (err)
clib_error_report (err);
- }));
+ }
/* *INDENT-ON* */
}
}
vlib_node_main_t *nm, *nm_clone;
vlib_main_t *vm_clone;
vlib_node_runtime_t *rt;
- never_inline void
- vlib_node_runtime_sync_stats (vlib_main_t * vm,
- vlib_node_runtime_t * r,
- uword n_calls,
- uword n_vectors, uword n_clocks);
ASSERT (vlib_get_thread_index () == 0);
- vm = vlib_mains[0];
+ vm = vlib_get_first_main ();
nm = &vm->node_main;
ASSERT (*vlib_worker_threads->wait_at_barrier == 1);
vlib_node_sync_stats (vm, n);
}
- for (i = 1; i < vec_len (vlib_mains); i++)
+ for (i = 1; i < vlib_get_n_threads (); i++)
{
vlib_node_t *n;
- vm_clone = vlib_mains[i];
+ vm_clone = vlib_get_main_by_index (i);
nm_clone = &vm_clone->node_main;
for (j = 0; j < vec_len (nm_clone->nodes); j++)
int j;
- vm = vlib_mains[0];
+ vm = vlib_get_first_main ();
nm = &vm->node_main;
vm_clone = vlib_get_main ();
nm_clone = &vm_clone->node_main;
clib_memcpy_fast (&vm_clone->error_main, &vm->error_main,
sizeof (vm->error_main));
j = vec_len (vm->error_main.counters) - 1;
+
+ /* Switch to the stats segment ... */
+ void *oldheap = vlib_stats_push_heap (0);
vec_validate_aligned (old_counters, j, CLIB_CACHE_LINE_BYTES);
- vec_validate_aligned (old_counters_all_clear, j, CLIB_CACHE_LINE_BYTES);
vm_clone->error_main.counters = old_counters;
+ vlib_stats_pop_heap2 (vm_clone->error_main.counters, vm_clone->thread_index,
+ oldheap, 0);
+
+ vec_validate_aligned (old_counters_all_clear, j, CLIB_CACHE_LINE_BYTES);
vm_clone->error_main.counters_last_clear = old_counters_all_clear;
nm_clone = &vm_clone->node_main;
clib_mem_alloc_no_fail (vec_len (nm->nodes) * sizeof (*new_n_clone));
for (j = 0; j < vec_len (nm->nodes); j++)
{
- vlib_node_t *old_n_clone;
- vlib_node_t *new_n;
-
- new_n = nm->nodes[j];
- old_n_clone = old_nodes_clone[j];
+ vlib_node_t *new_n = nm->nodes[j];
clib_memcpy_fast (new_n_clone, new_n, sizeof (*new_n));
/* none of the copied nodes have enqueue rights given out */
}
else
{
+ vlib_node_t *old_n_clone = old_nodes_clone[j];
/* Copy stats if the old data is valid */
clib_memcpy_fast (&new_n_clone->stats_total,
&old_n_clone->stats_total,
/* keep previous node state */
new_n_clone->state = old_n_clone->state;
+ new_n_clone->flags = old_n_clone->flags;
}
vec_add1 (nm_clone->nodes, new_n_clone);
new_n_clone++;
{
rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
rt->state = old_rt[j].state;
+ rt->flags = old_rt[j].flags;
clib_memcpy_fast (rt->runtime_data, old_rt[j].runtime_data,
VLIB_NODE_RUNTIME_DATA_SIZE);
}
nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT] =
vec_dup_aligned (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT],
CLIB_CACHE_LINE_BYTES);
+ clib_interrupt_resize (
+ &nm_clone->interrupts,
+ vec_len (nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT]));
vec_foreach (rt, nm_clone->nodes_by_type[VLIB_NODE_TYPE_INPUT])
{
{
rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
rt->state = old_rt[j].state;
+ rt->flags = old_rt[j].flags;
clib_memcpy_fast (rt->runtime_data, old_rt[j].runtime_data,
VLIB_NODE_RUNTIME_DATA_SIZE);
}
{
rt = vlib_node_get_runtime (vm_clone, old_rt[j].node_index);
rt->state = old_rt[j].state;
+ rt->flags = old_rt[j].flags;
clib_memcpy_fast (rt->runtime_data, old_rt[j].runtime_data,
VLIB_NODE_RUNTIME_DATA_SIZE);
}
nm_clone->processes = vec_dup_aligned (nm->processes,
CLIB_CACHE_LINE_BYTES);
+ nm_clone->node_by_error = nm->node_by_error;
}
void
;
else if (unformat (input, "skip-cores %u", &tm->skip_cores))
;
+ else if (unformat (input, "numa-heap-size %U",
+ unformat_memory_size, &tm->numa_heap_size))
+ ;
else if (unformat (input, "coremask-%s %U", &name,
unformat_bitmap_mask, &bitmap) ||
unformat (input, "corelist-%s %U", &name,
return clib_error_return (0,
"corelist cannot be set for '%s' threads",
name);
+ if (tr->count)
+ return clib_error_return
+ (0, "core placement of '%s' threads is already configured",
+ name);
tr->coremask = bitmap;
tr->count = clib_bitmap_count_set_bits (tr->coremask);
return clib_error_return (0, "no such thread type 3 '%s'", name);
tr = (vlib_thread_registration_t *) p[0];
+
if (tr->fixed_count)
return clib_error_return
- (0, "number of %s threads not configurable", tr->name);
+ (0, "number of '%s' threads not configurable", name);
+ if (tr->count)
+ return clib_error_return
+ (0, "number of '%s' threads is already configured", name);
+
tr->count = count;
}
else
VLIB_EARLY_CONFIG_FUNCTION (cpu_config, "cpu");
-void vnet_main_fixup (vlib_fork_fixup_t which) __attribute__ ((weak));
-void
-vnet_main_fixup (vlib_fork_fixup_t which)
-{
-}
-
-void
-vlib_worker_thread_fork_fixup (vlib_fork_fixup_t which)
-{
- vlib_main_t *vm = vlib_get_main ();
-
- if (vlib_mains == 0)
- return;
-
- ASSERT (vlib_get_thread_index () == 0);
- vlib_worker_thread_barrier_sync (vm);
-
- switch (which)
- {
- case VLIB_WORKER_THREAD_FORK_FIXUP_NEW_SW_IF_INDEX:
- vnet_main_fixup (VLIB_WORKER_THREAD_FORK_FIXUP_NEW_SW_IF_INDEX);
- break;
-
- default:
- ASSERT (0);
- }
- vlib_worker_thread_barrier_release (vm);
-}
-
/*
* Enforce minimum open time to minimize packet loss due to Rx overflow,
* based on a test based heuristic that barrier should be open for at least
#endif
void
-vlib_worker_thread_barrier_sync_int (vlib_main_t * vm)
+vlib_worker_thread_initial_barrier_sync_and_release (vlib_main_t * vm)
+{
+ f64 deadline;
+ f64 now = vlib_time_now (vm);
+ u32 count = vlib_get_n_threads () - 1;
+
+ /* No worker threads? */
+ if (count == 0)
+ return;
+
+ deadline = now + BARRIER_SYNC_TIMEOUT;
+ *vlib_worker_threads->wait_at_barrier = 1;
+ while (*vlib_worker_threads->workers_at_barrier != count)
+ {
+ if ((now = vlib_time_now (vm)) > deadline)
+ {
+ fformat (stderr, "%s: worker thread deadlock\n", __FUNCTION__);
+ os_panic ();
+ }
+ CLIB_PAUSE ();
+ }
+ *vlib_worker_threads->wait_at_barrier = 0;
+}
+
+/**
+ * Return true if the wroker thread barrier is held
+ */
+u8
+vlib_worker_thread_barrier_held (void)
+{
+ if (vlib_get_n_threads () < 2)
+ return (1);
+
+ return (*vlib_worker_threads->wait_at_barrier == 1);
+}
+
+void
+vlib_worker_thread_barrier_sync_int (vlib_main_t * vm, const char *func_name)
{
f64 deadline;
f64 now;
f64 t_entry;
f64 t_open;
f64 t_closed;
+ f64 max_vector_rate;
u32 count;
+ int i;
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
ASSERT (vlib_get_thread_index () == 0);
- count = vec_len (vlib_mains) - 1;
+ vlib_worker_threads[0].barrier_caller = func_name;
+ count = vlib_get_n_threads () - 1;
/* Record entry relative to last close */
now = vlib_time_now (vm);
return;
}
+ if (PREDICT_FALSE (vec_len (vm->barrier_perf_callbacks) != 0))
+ clib_call_callbacks (vm->barrier_perf_callbacks, vm,
+ vm->clib_time.last_cpu_time, 0 /* enter */ );
+
+ /*
+ * Need data to decide if we're working hard enough to honor
+ * the barrier hold-down timer.
+ */
+ max_vector_rate = 0.0;
+ for (i = 1; i < vlib_get_n_threads (); i++)
+ {
+ vlib_main_t *ovm = vlib_get_main_by_index (i);
+ max_vector_rate = clib_max (max_vector_rate,
+ (f64) vlib_last_vectors_per_main_loop (ovm));
+ }
+
vlib_worker_threads[0].barrier_sync_count++;
/* Enforce minimum barrier open time to minimize packet loss */
ASSERT (vm->barrier_no_close_before <= (now + BARRIER_MINIMUM_OPEN_LIMIT));
- while (1)
+ /*
+ * If any worker thread seems busy, which we define
+ * as a vector rate above 10, we enforce the barrier hold-down timer
+ */
+ if (max_vector_rate > 10.0)
{
- now = vlib_time_now (vm);
- /* Barrier hold-down timer expired? */
- if (now >= vm->barrier_no_close_before)
- break;
- if ((vm->barrier_no_close_before - now)
- > (2.0 * BARRIER_MINIMUM_OPEN_LIMIT))
+ while (1)
{
- clib_warning ("clock change: would have waited for %.4f seconds",
- (vm->barrier_no_close_before - now));
- break;
+ now = vlib_time_now (vm);
+ /* Barrier hold-down timer expired? */
+ if (now >= vm->barrier_no_close_before)
+ break;
+ if ((vm->barrier_no_close_before - now)
+ > (2.0 * BARRIER_MINIMUM_OPEN_LIMIT))
+ {
+ clib_warning
+ ("clock change: would have waited for %.4f seconds",
+ (vm->barrier_no_close_before - now));
+ break;
+ }
}
}
/* Record time of closure */
}
-void vlib_stat_segment_lock (void) __attribute__ ((weak));
-void
-vlib_stat_segment_lock (void)
-{
-}
-
-void vlib_stat_segment_unlock (void) __attribute__ ((weak));
-void
-vlib_stat_segment_unlock (void)
-{
-}
-
void
vlib_worker_thread_barrier_release (vlib_main_t * vm)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
f64 deadline;
f64 now;
f64 minimum_open;
f64 t_update_main = 0.0;
int refork_needed = 0;
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
ASSERT (vlib_get_thread_index () == 0);
}
/* Update (all) node runtimes before releasing the barrier, if needed */
- if (vm->need_vlib_worker_thread_node_runtime_update)
+ if (vgm->need_vlib_worker_thread_node_runtime_update)
{
/*
* Lock stat segment here, so we's safe when
/* Do stats elements on main thread */
worker_thread_node_runtime_update_internal ();
- vm->need_vlib_worker_thread_node_runtime_update = 0;
+ vgm->need_vlib_worker_thread_node_runtime_update = 0;
/* Do per thread rebuilds in parallel */
refork_needed = 1;
clib_atomic_fetch_add (vlib_worker_threads->node_reforks_required,
- (vec_len (vlib_mains) - 1));
+ (vlib_get_n_threads () - 1));
now = vlib_time_now (vm);
t_update_main = now - vm->barrier_epoch;
}
deadline = now + BARRIER_SYNC_TIMEOUT;
+ /*
+ * Note when we let go of the barrier.
+ * Workers can use this to derive a reasonably accurate
+ * time offset. See vlib_time_now(...)
+ */
+ vm->time_last_barrier_release = vlib_time_now (vm);
+ CLIB_MEMORY_STORE_BARRIER ();
+
*vlib_worker_threads->wait_at_barrier = 0;
while (*vlib_worker_threads->workers_at_barrier > 0)
barrier_trace_release (t_entry, t_closed_total, t_update_main);
+ if (PREDICT_FALSE (vec_len (vm->barrier_perf_callbacks) != 0))
+ clib_call_callbacks (vm->barrier_perf_callbacks, vm,
+ vm->clib_time.last_cpu_time, 1 /* leave */ );
}
-/*
- * Check the frame queue to see if any frames are available.
- * If so, pull the packets off the frames and put them to
- * the handoff node.
+/**
+ * Wait until each of the workers has been once around the track
*/
-int
-vlib_frame_queue_dequeue (vlib_main_t * vm, vlib_frame_queue_main_t * fqm)
+void
+vlib_worker_wait_one_loop (void)
{
- u32 thread_id = vm->thread_index;
- vlib_frame_queue_t *fq = fqm->vlib_frame_queues[thread_id];
- vlib_frame_queue_elt_t *elt;
- u32 *from, *to;
- vlib_frame_t *f;
- int msg_type;
- int processed = 0;
- u32 n_left_to_node;
- u32 vectors = 0;
-
- ASSERT (fq);
- ASSERT (vm == vlib_mains[thread_id]);
-
- if (PREDICT_FALSE (fqm->node_index == ~0))
- return 0;
- /*
- * Gather trace data for frame queues
- */
- if (PREDICT_FALSE (fq->trace))
- {
- frame_queue_trace_t *fqt;
- frame_queue_nelt_counter_t *fqh;
- u32 elix;
-
- fqt = &fqm->frame_queue_traces[thread_id];
-
- fqt->nelts = fq->nelts;
- fqt->head = fq->head;
- fqt->head_hint = fq->head_hint;
- fqt->tail = fq->tail;
- fqt->threshold = fq->vector_threshold;
- fqt->n_in_use = fqt->tail - fqt->head;
- if (fqt->n_in_use >= fqt->nelts)
- {
- // if beyond max then use max
- fqt->n_in_use = fqt->nelts - 1;
- }
-
- /* Record the number of elements in use in the histogram */
- fqh = &fqm->frame_queue_histogram[thread_id];
- fqh->count[fqt->n_in_use]++;
-
- /* Record a snapshot of the elements in use */
- for (elix = 0; elix < fqt->nelts; elix++)
- {
- elt = fq->elts + ((fq->head + 1 + elix) & (fq->nelts - 1));
- if (1 || elt->valid)
- {
- fqt->n_vectors[elix] = elt->n_vectors;
- }
- }
- fqt->written = 1;
- }
-
- while (1)
- {
- if (fq->head == fq->tail)
- {
- fq->head_hint = fq->head;
- return processed;
- }
-
- elt = fq->elts + ((fq->head + 1) & (fq->nelts - 1));
-
- if (!elt->valid)
- {
- fq->head_hint = fq->head;
- return processed;
- }
-
- from = elt->buffer_index;
- msg_type = elt->msg_type;
-
- ASSERT (msg_type == VLIB_FRAME_QUEUE_ELT_DISPATCH_FRAME);
- ASSERT (elt->n_vectors <= VLIB_FRAME_SIZE);
-
- f = vlib_get_frame_to_node (vm, fqm->node_index);
-
- to = vlib_frame_vector_args (f);
+ vlib_global_main_t *vgm = vlib_get_global_main ();
+ ASSERT (vlib_get_thread_index () == 0);
- n_left_to_node = elt->n_vectors;
+ if (vlib_get_n_threads () < 2)
+ return;
- while (n_left_to_node >= 4)
- {
- to[0] = from[0];
- to[1] = from[1];
- to[2] = from[2];
- to[3] = from[3];
- to += 4;
- from += 4;
- n_left_to_node -= 4;
- }
+ if (vlib_worker_thread_barrier_held ())
+ return;
- while (n_left_to_node > 0)
- {
- to[0] = from[0];
- to++;
- from++;
- n_left_to_node--;
- }
+ u32 *counts = 0;
+ u32 ii;
- vectors += elt->n_vectors;
- f->n_vectors = elt->n_vectors;
- vlib_put_frame_to_node (vm, fqm->node_index, f);
+ vec_validate (counts, vlib_get_n_threads () - 1);
- elt->valid = 0;
- elt->n_vectors = 0;
- elt->msg_type = 0xfefefefe;
- CLIB_MEMORY_BARRIER ();
- fq->head++;
- processed++;
+ /* record the current loop counts */
+ vec_foreach_index (ii, vgm->vlib_mains)
+ counts[ii] = vgm->vlib_mains[ii]->main_loop_count;
- /*
- * Limit the number of packets pushed into the graph
- */
- if (vectors >= fq->vector_threshold)
- {
- fq->head_hint = fq->head;
- return processed;
- }
+ /* spin until each changes, apart from the main thread, or we'd be
+ * a while */
+ for (ii = 1; ii < vec_len (counts); ii++)
+ {
+ while (counts[ii] == vgm->vlib_mains[ii]->main_loop_count)
+ CLIB_PAUSE ();
}
- ASSERT (0);
- return processed;
+
+ vec_free (counts);
+ return;
}
void
vlib_worker_thread_fn (void *arg)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
vlib_worker_thread_t *w = (vlib_worker_thread_t *) arg;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_main_t *vm = vlib_get_main ();
clib_error_t *e;
- ASSERT (vm->thread_index == vlib_get_thread_index ());
+ vlib_process_finish_switch_stack (vm);
- vm->cpu_index = clib_get_current_cpu_index ();
- vm->numa_node = clib_get_current_numa_node ();
+ ASSERT (vm->thread_index == vlib_get_thread_index ());
vlib_worker_thread_init (w);
clib_time_init (&vm->clib_time);
clib_mem_set_heap (w->thread_mheap);
- /* Wait until the dpdk init sequence is complete */
- while (tm->extern_thread_mgmt && tm->worker_thread_release == 0)
- vlib_worker_thread_barrier_check ();
+ vm->worker_init_functions_called = hash_create (0, 0);
- e = vlib_call_init_exit_functions
- (vm, vm->worker_init_function_registrations, 1 /* call_once */ );
+ e = vlib_call_init_exit_functions_no_sort (
+ vm, &vgm->worker_init_function_registrations, 1 /* call_once */,
+ 0 /* is_global */);
if (e)
clib_error_report (e);
+ /* Wait until the dpdk init sequence is complete */
+ while (tm->extern_thread_mgmt && tm->worker_thread_release == 0)
+ vlib_worker_thread_barrier_check ();
+
vlib_worker_loop (vm);
}
vlib_frame_queue_main_t *fqm;
vlib_frame_queue_t *fq;
int i;
+ u32 num_threads;
if (frame_queue_nelts == 0)
- frame_queue_nelts = FRAME_QUEUE_NELTS;
+ frame_queue_nelts = FRAME_QUEUE_MAX_NELTS;
- ASSERT (frame_queue_nelts >= 8);
+ num_threads = 1 /* main thread */ + tm->n_threads;
+ ASSERT (frame_queue_nelts >= 8 + num_threads);
vec_add2 (tm->frame_queue_mains, fqm, 1);
fqm->node_index = node_index;
fqm->frame_queue_nelts = frame_queue_nelts;
- fqm->queue_hi_thresh = frame_queue_nelts - 2;
+ fqm->queue_hi_thresh = frame_queue_nelts - num_threads;
vec_validate (fqm->vlib_frame_queues, tm->n_vlib_mains - 1);
vec_validate (fqm->per_thread_data, tm->n_vlib_mains - 1);
VLIB_INIT_FUNCTION (threads_init);
+
+static clib_error_t *
+show_clock_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ int i;
+ int verbose = 0;
+ clib_timebase_t _tb, *tb = &_tb;
+
+ (void) unformat (input, "verbose %=", &verbose, 1);
+
+ clib_timebase_init (tb, 0 /* GMT */ , CLIB_TIMEBASE_DAYLIGHT_NONE,
+ &vm->clib_time);
+
+ vlib_cli_output (vm, "%U, %U GMT", format_clib_time, &vm->clib_time,
+ verbose, format_clib_timebase_time,
+ clib_timebase_now (tb));
+
+ if (vlib_get_n_threads () == 1)
+ return 0;
+
+ vlib_cli_output (vm, "Time last barrier release %.9f",
+ vm->time_last_barrier_release);
+
+ for (i = 1; i < vlib_get_n_threads (); i++)
+ {
+ vlib_main_t *ovm = vlib_get_main_by_index (i);
+ if (ovm == 0)
+ continue;
+
+ vlib_cli_output (vm, "%d: %U", i, format_clib_time, &ovm->clib_time,
+ verbose);
+
+ vlib_cli_output (
+ vm, "Thread %d offset %.9f error %.9f", i, ovm->time_offset,
+ vm->time_last_barrier_release - ovm->time_last_barrier_release);
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (f_command, static) =
+{
+ .path = "show clock",
+ .short_help = "show clock",
+ .function = show_clock_command_fn,
+};
+/* *INDENT-ON* */
+
+vlib_thread_main_t *
+vlib_get_thread_main_not_inline (void)
+{
+ return vlib_get_thread_main ();
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff