snapshot of https://github.com/livekit/livekit.git @ 08c5433449c106943231037d0b892895f6e92d3b (2026-09-15)

pkg/routing/selector/sysload.go

@@ -0,0 +1,45 @@
+// Copyright 2023 LiveKit, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package selector
+
+import (
+	"github.com/livekit/protocol/livekit"
+)
+
+// SystemLoadSelector eliminates nodes that surpass has a per-cpu node higher than SysloadLimit
+// then selects a node from nodes that are not overloaded
+type SystemLoadSelector struct {
+	SysloadLimit float32
+	SortBy       string
+	Algorithm    string
+}
+
+func (s *SystemLoadSelector) filterNodes(nodes []*livekit.Node) ([]*livekit.Node, error) {
+	nodes, err := FilterNodesByCriteria(nodes, s.SysloadLimit, GetNodeSysload)
+	if err != nil {
+		return nil, err
+	}
+
+	return nodes, nil
+}
+
+func (s *SystemLoadSelector) SelectNode(nodes []*livekit.Node) (*livekit.Node, error) {
+	nodes, err := s.filterNodes(nodes)
+	if err != nil {
+		return nil, err
+	}
+
+	return SelectSortedNode(nodes, s.SortBy, s.Algorithm)
+}