X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Fthreads.c;h=82263797d931e4dfcb02e29b82d5ededab9f6537;hb=368104d06ad6d667a8cce152426916fc654b6627;hp=8a06887561785a755e2c28de7ae6808472830718;hpb=f617b145ebc2f6ea2ad9bc3b6fa26968a0493821;p=vpp.git diff --git a/src/vlib/threads.c b/src/vlib/threads.c index 8a068875617..82263797d93 100644 --- a/src/vlib/threads.c +++ b/src/vlib/threads.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -336,12 +337,24 @@ vlib_thread_init (vlib_main_t * vm) { 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); } @@ -583,16 +596,30 @@ 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, 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; @@ -608,7 +635,6 @@ vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned cpu_id) 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) @@ -617,7 +643,7 @@ vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned cpu_id) if (tm->numa_heap_size) { numa_heap = clib_mem_init_thread_safe_numa - (0 /* DIY */ , tm->numa_heap_size); + (0 /* DIY */ , tm->numa_heap_size, w->numa_id); clib_per_numa_mheaps[w->numa_id] = numa_heap; } else @@ -729,15 +755,8 @@ start_workers (vlib_main_t * vm) 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 = create_mspace (tr->mheap_size, + 0 /* unlocked */ ); else w->thread_mheap = main_heap; @@ -901,13 +920,8 @@ start_workers (vlib_main_t * vm) 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 } else w->thread_mheap = main_heap; @@ -1282,6 +1296,10 @@ cpu_config (vlib_main_t * vm, unformat_input_t * input) 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); @@ -1300,9 +1318,14 @@ cpu_config (vlib_main_t * vm, unformat_input_t * input) 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 @@ -1791,17 +1814,19 @@ vlib_frame_queue_main_init (u32 node_index, u32 frame_queue_nelts) 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); @@ -1874,10 +1899,16 @@ show_clock_command_fn (vlib_main_t * vm, { 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;