Move ResourceSnapshot out of PsInfoCollector (we'll be using creating this snapshot with cgroups which has nothing to do with ps) and also only collect resources from alive workers.
PiperOrigin-RevId: 601125773
Change-Id: I3dc2c2d62fd15caf3d58b13ac1a96ddd6471aee6
diff --git a/src/main/java/com/google/devtools/build/lib/metrics/ResourceSnapshot.java b/src/main/java/com/google/devtools/build/lib/metrics/ResourceSnapshot.java
new file mode 100644
index 0000000..99009f7
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/metrics/ResourceSnapshot.java
@@ -0,0 +1,38 @@
+// Copyright 2024 The Bazel Authors. All rights reserved.
+//
+// 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 com.google.devtools.build.lib.metrics;
+
+import com.google.auto.value.AutoValue;
+import com.google.common.collect.ImmutableMap;
+import java.time.Instant;
+
+/** Contains a snapshot of the resource usage of multiple processes. */
+@AutoValue
+public abstract class ResourceSnapshot {
+ /** Overall memory consumption by all descendant processes including initial process. */
+ public abstract ImmutableMap<Long, Integer> getPidToMemoryInKb();
+
+ /** Time when this snapshot was collected. */
+ public abstract Instant getCollectionTime();
+
+ public static ResourceSnapshot create(
+ ImmutableMap<Long, Integer> pidToMemoryInKb, Instant collectionTime) {
+ return new AutoValue_ResourceSnapshot(pidToMemoryInKb, collectionTime);
+ }
+
+ public static ResourceSnapshot createEmpty() {
+ return new AutoValue_ResourceSnapshot(ImmutableMap.of(), Instant.now());
+ }
+}
