#include <signal.h>
#include <math.h>
#include <vppinfra/format.h>
+#include <vppinfra/time_range.h>
#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
-#include <vlib/unix/cj.h>
#include <vlib/stat_weak_inlines.h>
-DECLARE_CJ_GLOBAL_LOG;
-
-
u32
vl (void *p)
{
{
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);
}
__os_thread_index = w - vlib_worker_threads;
+ vlib_process_start_switch_stack (vlib_mains[__os_thread_index], 0);
rv = (void *) clib_calljmp
((uword (*)(uword)) w->thread_function,
(uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
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, 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", &numa_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;
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_numa (w, cpu_id);
- os_set_numa_index (w->numa_id);
/* Set up NUMA-bound heap if indicated */
- if (clib_per_numa_mheaps[w->numa_id] == 0)
+ if (mm->per_numa_mheaps[w->numa_id] == 0)
{
/* If the user requested a NUMA heap, create it... */
if (tm->numa_heap_size)
{
- numa_heap = clib_mem_init_thread_safe_numa
- (0 /* DIY */ , tm->numa_heap_size);
- clib_per_numa_mheaps[w->numa_id] = numa_heap;
+ 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 */
- clib_per_numa_mheaps[w->numa_id] = w->thread_mheap;
+ mm->per_numa_mheaps[w->numa_id] = w->thread_mheap;
}
}
clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
vm->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);
+ /* Replace hand-crafted length-1 vector with a real vector */
+ vlib_mains = 0;
+ vec_validate_aligned (vlib_mains, n_vlib_mains - 1, CLIB_CACHE_LINE_BYTES);
+ _vec_len (vlib_mains) = 0;
+ vec_add1_aligned (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 =
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++)
{
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;
_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_clone = &vm_clone->node_main;
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;
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_worker_threads->wait_at_barrier = 0;
}
+/**
+ * Return true if the wroker thread barrier is held
+ */
+u8
+vlib_worker_thread_barrier_held (void)
+{
+ if (vec_len (vlib_mains) < 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)
{
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.
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 */ );
+}
+
+/**
+ * Wait until each of the workers has been once around the track
+ */
+void
+vlib_worker_wait_one_loop (void)
+{
+ ASSERT (vlib_get_thread_index () == 0);
+
+ if (vec_len (vlib_mains) < 2)
+ return;
+
+ if (vlib_worker_thread_barrier_held ())
+ return;
+
+ u32 *counts = 0;
+ u32 ii;
+
+ vec_validate (counts, vec_len (vlib_mains) - 1);
+
+ /* record the current loop counts */
+ vec_foreach_index (ii, vlib_mains)
+ counts[ii] = vlib_mains[ii]->main_loop_count;
+
+ /* 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] == vlib_mains[ii]->main_loop_count)
+ CLIB_PAUSE ();
+ }
+
+ vec_free (counts);
+ return;
}
/*
vlib_main_t *vm = vlib_get_main ();
clib_error_t *e;
+ vlib_process_finish_switch_stack (vm);
+
ASSERT (vm->thread_index == vlib_get_thread_index ());
vlib_worker_thread_init (w);
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_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);
{
int i;
int verbose = 0;
+ clib_timebase_t _tb, *tb = &_tb;
(void) unformat (input, "verbose %=", &verbose, 1);
- vlib_cli_output (vm, "%U", format_clib_time, &vm->clib_time, verbose);
+ 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 (vec_len (vlib_mains) == 1)
return 0;
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