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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.provision;
import com.yahoo.config.provision.NodeResources.Architecture;
import com.yahoo.config.provision.NodeResources.DiskSpeed;
import com.yahoo.config.provision.NodeResources.GpuResources;
import com.yahoo.config.provision.NodeResources.StorageType;
import org.junit.jupiter.api.Test;
import java.util.function.Supplier;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
/**
* @author bratseth
*/
class NodeResourcesTest {
@Test
void testCost() {
assertEquals(5.408, new NodeResources(32, 128, 1200, 1).cost(), 0.0001);
}
@Test
void testToString() {
assertEquals("[vcpu: 1.0, memory: 10.0 Gb, disk: 100.0 Gb, architecture: any]",
new NodeResources(1., 10., 100., 0).toString());
assertEquals("[vcpu: 0.3, memory: 3.3 Gb, disk: 33.3 Gb, bandwidth: 0.3 Gbps, architecture: any]",
new NodeResources(1 / 3., 10 / 3., 100 / 3., 0.3).toString());
assertEquals("[vcpu: 0.7, memory: 9.0 Gb, disk: 66.7 Gb, bandwidth: 0.7 Gbps, architecture: any]",
new NodeResources(2 / 3., 8.97, 200 / 3., 0.67).toString());
}
@Test
void testInvalid() {
assertInvalid("vcpu", () -> new NodeResources(Double.NaN, 1.0, 1.0, 1.0));
assertInvalid("memory", () -> new NodeResources(1.0, Double.NaN, 1.0, 1.0));
assertInvalid("disk", () -> new NodeResources(1.0, 1.0, Double.NaN, 1.0));
assertInvalid("bandwidth", () -> new NodeResources(1.0, 1.0, 1.0, Double.NaN));
}
@Test
void testSatisfies() {
var hostResources = new NodeResources(1, 2, 3, 1);
assertTrue(hostResources.satisfies(new NodeResources(1, 2, 3, 1)));
assertTrue(hostResources.satisfies(new NodeResources(1, 1, 1, 1)));
assertFalse(hostResources.satisfies(new NodeResources(2, 2, 3, 1)));
assertFalse(hostResources.satisfies(new NodeResources(1, 3, 3, 1)));
assertFalse(hostResources.satisfies(new NodeResources(1, 2, 4, 1)));
var gpuHostResources = new NodeResources(1, 2, 3, 1,
NodeResources.DiskSpeed.fast,
NodeResources.StorageType.local,
NodeResources.Architecture.x86_64,
new NodeResources.GpuResources(1, 16));
assertTrue(gpuHostResources.satisfies(new NodeResources(1, 2, 3, 1,
NodeResources.DiskSpeed.fast,
NodeResources.StorageType.local,
NodeResources.Architecture.x86_64,
new NodeResources.GpuResources(1, 16))));
assertFalse(gpuHostResources.satisfies(new NodeResources(1, 2, 3, 1,
NodeResources.DiskSpeed.fast,
NodeResources.StorageType.local,
NodeResources.Architecture.x86_64,
new NodeResources.GpuResources(1, 32))));
assertFalse(hostResources.satisfies(gpuHostResources));
}
@Test
void benchmark() {
NodeResources [] resources = new NodeResources[100];
for (int i = 0; i < resources.length; i++) {
resources[i] = new NodeResources(1 / 3., 10 / 3., 100 / 3., 0.3);
}
int NUM_ITER = 100; // Use at least 100000 for proper benchmarking
long warmup = runTest(resources, NUM_ITER);
long start = System.nanoTime();
long benchmark = runTest(resources, NUM_ITER);
long duration = System.nanoTime() - start;
System.out.println("NodeResources.toString() took " + duration / 1000000 + " ms");
assertEquals(warmup, benchmark);
}
@Test
void testSpecifyFully() {
NodeResources empty = new NodeResources(0, 0, 0, 0).with(DiskSpeed.any);
assertEquals(0, empty.withUnspecifiedFieldsFrom(empty).vcpu());
assertEquals(3, empty.withUnspecifiedFieldsFrom(empty.withVcpu(3)).vcpu());
assertEquals(2, empty.withVcpu(2).withUnspecifiedFieldsFrom(empty.withVcpu(3)).vcpu());
assertEquals(0, empty.withUnspecifiedFieldsFrom(empty).memoryGb());
assertEquals(3, empty.withUnspecifiedFieldsFrom(empty.withMemoryGb(3)).memoryGb());
assertEquals(2, empty.withMemoryGb(2).withUnspecifiedFieldsFrom(empty.withMemoryGb(3)).memoryGb());
assertEquals(0, empty.withUnspecifiedFieldsFrom(empty).diskGb());
assertEquals(3, empty.withUnspecifiedFieldsFrom(empty.withDiskGb(3)).diskGb());
assertEquals(2, empty.withDiskGb(2).withUnspecifiedFieldsFrom(empty.withDiskGb(3)).diskGb());
assertEquals(0, empty.withUnspecifiedFieldsFrom(empty).bandwidthGbps());
assertEquals(3, empty.withUnspecifiedFieldsFrom(empty.withBandwidthGbps(3)).bandwidthGbps());
assertEquals(2, empty.withBandwidthGbps(2).withUnspecifiedFieldsFrom(empty.withBandwidthGbps(3)).bandwidthGbps());
assertEquals(Architecture.any, empty.withUnspecifiedFieldsFrom(empty).architecture());
assertEquals(Architecture.arm64, empty.withUnspecifiedFieldsFrom(empty.with(Architecture.arm64)).architecture());
assertEquals(Architecture.x86_64, empty.with(Architecture.x86_64).withUnspecifiedFieldsFrom(empty.with(Architecture.arm64)).architecture());
assertEquals(DiskSpeed.any, empty.withUnspecifiedFieldsFrom(empty).diskSpeed());
assertEquals(DiskSpeed.fast, empty.withUnspecifiedFieldsFrom(empty.with(DiskSpeed.fast)).diskSpeed());
assertEquals(DiskSpeed.slow, empty.with(DiskSpeed.slow).withUnspecifiedFieldsFrom(empty.with(DiskSpeed.fast)).diskSpeed());
assertEquals(StorageType.any, empty.withUnspecifiedFieldsFrom(empty).storageType());
assertEquals(StorageType.local, empty.withUnspecifiedFieldsFrom(empty.with(StorageType.local)).storageType());
assertEquals(StorageType.remote, empty.with(StorageType.remote).withUnspecifiedFieldsFrom(empty.with(StorageType.local)).storageType());
}
@Test
void testJoiningResources() {
var resources = new NodeResources(1, 2, 3, 1,
NodeResources.DiskSpeed.fast,
NodeResources.StorageType.local,
NodeResources.Architecture.x86_64,
new NodeResources.GpuResources(4, 16));
assertNotInterchangeable(resources, resources.with(NodeResources.DiskSpeed.slow));
assertNotInterchangeable(resources, resources.with(NodeResources.StorageType.remote));
assertNotInterchangeable(resources, resources.with(NodeResources.Architecture.arm64));
var other = resources.with(new NodeResources.GpuResources(4, 32));
var expected = resources.withVcpu(2)
.withMemoryGb(4)
.withDiskGb(6)
.withBandwidthGbps(2)
.with(new NodeResources.GpuResources(1, 192));
var actual = resources.add(other);
assertEquals(expected, actual);
// Subtracted back to original resources - but GPU is flattened to count=1
expected = resources.with(new NodeResources.GpuResources(1, 64));
actual = actual.subtract(other);
assertEquals(expected, actual);
}
private void assertInvalid(String valueName, Supplier<NodeResources> nodeResources) {
try {
nodeResources.get();
fail("Expected exception");
}
catch (IllegalArgumentException e) {
assertEquals(valueName + " cannot be NaN", e.getMessage());
}
}
private long runTest(NodeResources [] resouces, int num) {
long sum = 0;
for (int i = 0; i < num; i++) {
for (NodeResources ns :resouces) {
sum += ns.toString().length();
}
}
return sum;
}
private void assertNotInterchangeable(NodeResources a, NodeResources b) {
try {
a.add(b);
fail();
}
catch (IllegalArgumentException e) {
assertEquals(a + " and " + b + " are not interchangeable", e.getMessage());
}
}
}
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