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authorDave Barach <dave@barachs.net>2020-01-21 12:34:55 -0500
committerFlorin Coras <florin.coras@gmail.com>2020-02-05 23:38:56 +0000
commita690fdbfe179e0ea65818c03b52535bf9210efd0 (patch)
tree345200955b873dbc2f5bb6857b1acc7966ffed90 /src/vlib/threads.c
parent86e8bce44f43c1f3c50a3397f9ab850f484f4cad (diff)
vppinfra: numa vector placement support
Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I7e7d95a089dd849c1f01ecea84529d8dbf239f21
Diffstat (limited to 'src/vlib/threads.c')
-rw-r--r--src/vlib/threads.c35
1 files changed, 29 insertions, 6 deletions
diff --git a/src/vlib/threads.c b/src/vlib/threads.c
index e6733d55b6f..a827e3594e8 100644
--- a/src/vlib/threads.c
+++ b/src/vlib/threads.c
@@ -577,12 +577,12 @@ vlib_worker_thread_bootstrap_fn (void *arg)
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";
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);
@@ -590,11 +590,11 @@ vlib_get_thread_core_socket (vlib_worker_thread_t * w, unsigned cpu_id)
p =
format (p, "%s%u/topology/physical_package_id%c", sys_cpu_path, cpu_id,
0);
- clib_sysfs_read ((char *) p, "%d", &socket_id);
+ clib_sysfs_read ((char *) p, "%d", &numa_id);
vec_free (p);
w->core_id = core_id;
- w->socket_id = socket_id;
+ w->numa_id = numa_id;
}
static clib_error_t *
@@ -602,9 +602,29 @@ vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned cpu_id)
{
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);
+ os_set_numa_index (w->numa_id);
+
+ /* Set up NUMA-bound heap if indicated */
+ if (clib_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;
+ }
+ else
+ {
+ /* Or, use the main heap */
+ clib_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
@@ -1242,6 +1262,9 @@ cpu_config (vlib_main_t * vm, unformat_input_t * input)
;
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,