Github user jpeach commented on a diff in the pull request:
https://github.com/apache/trafficserver/pull/956#discussion_r77443795
--- Diff: iocore/eventsystem/UnixEventProcessor.cc ---
@@ -152,6 +155,59 @@ EventProcessor::start(int n_event_threads, size_t
stacksize)
#else
Debug("iocore_thread", "EThread: %d %s: %d", i, obj_name,
obj->logical_index);
#endif // HWLOC_API_VERSION
+ }
+#endif // TS_USE_HWLOC
+
+ snprintf(thr_name, MAX_THREAD_NAME_LENGTH, "[ET_NET %d]", i);
+#if TS_USE_HWLOC
+ if (obj_count > 0) {
+ hwloc_membind_policy_t mem_policy = HWLOC_MEMBIND_DEFAULT;
+ hwloc_nodeset_t nodeset = hwloc_bitmap_alloc();
+ int num_nodes = 0;
+
+ hwloc_cpuset_to_nodeset(ink_get_topology(), obj->cpuset, nodeset);
+ num_nodes =
hwloc_get_nbobjs_inside_cpuset_by_type(ink_get_topology(), obj->cpuset,
HWLOC_OBJ_NODE);
+
+ if (num_nodes == 1) {
+ mem_policy = HWLOC_MEMBIND_BIND;
+ } else if (num_nodes > 1) {
+ mem_policy = HWLOC_MEMBIND_INTERLEAVE;
+ }
+
+ if (mem_policy != HWLOC_MEMBIND_DEFAULT) {
+ hwloc_set_membind_nodeset(ink_get_topology(), nodeset, mem_policy,
HWLOC_MEMBIND_THREAD);
+ }
+
+ if (ats_hugepage_enabled()) {
+ stack = ats_alloc_hugepage(stacksize);
--- End diff --
Why is is helpful to use huge pages for stacks? Especially if the stack is
smaller than a huge page?
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