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cpumanager: test NUMA node support for CPU assign (2)

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This batch of tests adds a fake topology on which each numa node
has multiple sockets. We didn't find yet a real HW topology in the wild
like this, but we need one to fully exercise the code.

So, until we find a HW topology, we add a fake one flipping
the NUMA/socket config of the existing xeon dual gold 6320.

Signed-off-by: Francesco Romani <fromani@redhat.com>
This commit is contained in:
Francesco Romani 2021-10-15 08:37:42 +02:00 committed by Kevin Klues
parent 547996f3f6
commit 4bae656835
3 changed files with 301 additions and 0 deletions
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50
pkg/kubelet/cm/cpumanager/cpu_assignment_test.go
View File

@ -18,6 +18,7 @@ package cpumanager
import (
"reflect"
"sort"
"testing"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
@ -79,12 +80,43 @@ func TestCPUAccumulatorFreeSockets(t *testing.T) {
mustParseCPUSet(t, "1-78"),
[]int{},
},
{
"dual numa, multi socket per per socket, HT, 4 sockets free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-79"),
[]int{0, 1, 2, 3},
},
{
"dual numa, multi socket per per socket, HT, 3 sockets free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-19,21-79"),
[]int{0, 1, 3},
},
{
"dual numa, multi socket per per socket, HT, 2 sockets free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-59,61-78"),
[]int{0, 1},
},
{
"dual numa, multi socket per per socket, HT, 1 sockets free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "1-19,21-38,41-60,61-78"),
[]int{1},
},
{
"dual numa, multi socket per per socket, HT, 0 sockets free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-40,42-49,51-68,71-79"),
[]int{},
},
}
for _, tc := range testCases {
t.Run(tc.description, func(t *testing.T) {
acc := newCPUAccumulator(tc.topo, tc.availableCPUs, 0)
result := acc.freeSockets()
sort.Ints(result)
if !reflect.DeepEqual(result, tc.expect) {
t.Errorf("expected %v to equal %v", result, tc.expect)
@ -160,6 +192,24 @@ func TestCPUAccumulatorFreeNUMANodes(t *testing.T) {
mustParseCPUSet(t, "1-9,11-59,61-78"),
[]int{},
},
{
"dual numa, multi socket per per socket, HT, 2 NUMA node free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-79"),
[]int{0, 1},
},
{
"dual numa, multi socket per per socket, HT, 1 NUMA node free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-9,11-79"),
[]int{1},
},
{
"dual numa, multi socket per per socket, HT, 0 sockets free",
fakeTopoMultiSocketDualSocketPerNumaHT,
mustParseCPUSet(t, "0-9,11-59,61-79"),
[]int{},
},
}
for _, tc := range testCases {

95
pkg/kubelet/cm/cpumanager/policy_test.go
View File

@ -515,4 +515,99 @@ var (
79: {CoreID: 39, SocketID: 1, NUMANodeID: 3},
},
}
/*
FAKE Topology from dual xeon gold 6230
(see: topoDualSocketMultiNumaPerSocketHT).
We flip NUMA cells and Sockets to exercise the code.
TODO(fromanirh): replace with a real-world topology
once we find a suitable one.
*/
fakeTopoMultiSocketDualSocketPerNumaHT = &topology.CPUTopology{
NumCPUs: 80,
NumSockets: 4,
NumCores: 40,
NumNUMANodes: 2,
CPUDetails: map[int]topology.CPUInfo{
0: {CoreID: 0, SocketID: 0, NUMANodeID: 0},
1: {CoreID: 1, SocketID: 0, NUMANodeID: 0},
2: {CoreID: 2, SocketID: 0, NUMANodeID: 0},
3: {CoreID: 3, SocketID: 0, NUMANodeID: 0},
4: {CoreID: 4, SocketID: 0, NUMANodeID: 0},
5: {CoreID: 5, SocketID: 0, NUMANodeID: 0},
6: {CoreID: 6, SocketID: 0, NUMANodeID: 0},
7: {CoreID: 7, SocketID: 0, NUMANodeID: 0},
8: {CoreID: 8, SocketID: 0, NUMANodeID: 0},
9: {CoreID: 9, SocketID: 0, NUMANodeID: 0},
10: {CoreID: 10, SocketID: 1, NUMANodeID: 0},
11: {CoreID: 11, SocketID: 1, NUMANodeID: 0},
12: {CoreID: 12, SocketID: 1, NUMANodeID: 0},
13: {CoreID: 13, SocketID: 1, NUMANodeID: 0},
14: {CoreID: 14, SocketID: 1, NUMANodeID: 0},
15: {CoreID: 15, SocketID: 1, NUMANodeID: 0},
16: {CoreID: 16, SocketID: 1, NUMANodeID: 0},
17: {CoreID: 17, SocketID: 1, NUMANodeID: 0},
18: {CoreID: 18, SocketID: 1, NUMANodeID: 0},
19: {CoreID: 19, SocketID: 1, NUMANodeID: 0},
20: {CoreID: 20, SocketID: 2, NUMANodeID: 1},
21: {CoreID: 21, SocketID: 2, NUMANodeID: 1},
22: {CoreID: 22, SocketID: 2, NUMANodeID: 1},
23: {CoreID: 23, SocketID: 2, NUMANodeID: 1},
24: {CoreID: 24, SocketID: 2, NUMANodeID: 1},
25: {CoreID: 25, SocketID: 2, NUMANodeID: 1},
26: {CoreID: 26, SocketID: 2, NUMANodeID: 1},
27: {CoreID: 27, SocketID: 2, NUMANodeID: 1},
28: {CoreID: 28, SocketID: 2, NUMANodeID: 1},
29: {CoreID: 29, SocketID: 2, NUMANodeID: 1},
30: {CoreID: 30, SocketID: 3, NUMANodeID: 1},
31: {CoreID: 31, SocketID: 3, NUMANodeID: 1},
32: {CoreID: 32, SocketID: 3, NUMANodeID: 1},
33: {CoreID: 33, SocketID: 3, NUMANodeID: 1},
34: {CoreID: 34, SocketID: 3, NUMANodeID: 1},
35: {CoreID: 35, SocketID: 3, NUMANodeID: 1},
36: {CoreID: 36, SocketID: 3, NUMANodeID: 1},
37: {CoreID: 37, SocketID: 3, NUMANodeID: 1},
38: {CoreID: 38, SocketID: 3, NUMANodeID: 1},
39: {CoreID: 39, SocketID: 3, NUMANodeID: 1},
40: {CoreID: 0, SocketID: 0, NUMANodeID: 0},
41: {CoreID: 1, SocketID: 0, NUMANodeID: 0},
42: {CoreID: 2, SocketID: 0, NUMANodeID: 0},
43: {CoreID: 3, SocketID: 0, NUMANodeID: 0},
44: {CoreID: 4, SocketID: 0, NUMANodeID: 0},
45: {CoreID: 5, SocketID: 0, NUMANodeID: 0},
46: {CoreID: 6, SocketID: 0, NUMANodeID: 0},
47: {CoreID: 7, SocketID: 0, NUMANodeID: 0},
48: {CoreID: 8, SocketID: 0, NUMANodeID: 0},
49: {CoreID: 9, SocketID: 0, NUMANodeID: 0},
50: {CoreID: 10, SocketID: 1, NUMANodeID: 0},
51: {CoreID: 11, SocketID: 1, NUMANodeID: 0},
52: {CoreID: 12, SocketID: 1, NUMANodeID: 0},
53: {CoreID: 13, SocketID: 1, NUMANodeID: 0},
54: {CoreID: 14, SocketID: 1, NUMANodeID: 0},
55: {CoreID: 15, SocketID: 1, NUMANodeID: 0},
56: {CoreID: 16, SocketID: 1, NUMANodeID: 0},
57: {CoreID: 17, SocketID: 1, NUMANodeID: 0},
58: {CoreID: 18, SocketID: 1, NUMANodeID: 0},
59: {CoreID: 19, SocketID: 1, NUMANodeID: 0},
60: {CoreID: 20, SocketID: 2, NUMANodeID: 1},
61: {CoreID: 21, SocketID: 2, NUMANodeID: 1},
62: {CoreID: 22, SocketID: 2, NUMANodeID: 1},
63: {CoreID: 23, SocketID: 2, NUMANodeID: 1},
64: {CoreID: 24, SocketID: 2, NUMANodeID: 1},
65: {CoreID: 25, SocketID: 2, NUMANodeID: 1},
66: {CoreID: 26, SocketID: 2, NUMANodeID: 1},
67: {CoreID: 27, SocketID: 2, NUMANodeID: 1},
68: {CoreID: 28, SocketID: 2, NUMANodeID: 1},
69: {CoreID: 29, SocketID: 2, NUMANodeID: 1},
70: {CoreID: 30, SocketID: 3, NUMANodeID: 1},
71: {CoreID: 31, SocketID: 3, NUMANodeID: 1},
72: {CoreID: 32, SocketID: 3, NUMANodeID: 1},
73: {CoreID: 33, SocketID: 3, NUMANodeID: 1},
74: {CoreID: 34, SocketID: 3, NUMANodeID: 1},
75: {CoreID: 35, SocketID: 3, NUMANodeID: 1},
76: {CoreID: 36, SocketID: 3, NUMANodeID: 1},
77: {CoreID: 37, SocketID: 3, NUMANodeID: 1},
78: {CoreID: 38, SocketID: 3, NUMANodeID: 1},
79: {CoreID: 39, SocketID: 3, NUMANodeID: 1},
},
}
)

156
pkg/kubelet/cm/cpumanager/topology/topology_test.go
View File

@ -230,7 +230,163 @@ func Test_Discover(t *testing.T) {
},
wantErr: false,
},
{
// FAKE Topology from dual xeon gold 6230
// (see: dual xeon gold 6230).
// We flip NUMA cells and Sockets to exercise the code.
// TODO(fromanirh): replace with a real-world topology
// once we find a suitable one.
// Note: this is a fake topology. Thus, there is not a "correct"
// representation. This one was created following the these concepts:
// 1. be internally consistent (most important rule)
// 2. be as close as possible as existing HW topologies
// 3. if possible, minimize chances wrt existing HW topologies.
name: "DualNumaMultiSocketPerNumaHT",
machineInfo: cadvisorapi.MachineInfo{
NumCores: 80,
NumSockets: 4,
Topology: []cadvisorapi.Node{
{Id: 0,
Cores: []cadvisorapi.Core{
{SocketID: 0, Id: 0, Threads: []int{0, 40}},
{SocketID: 0, Id: 1, Threads: []int{1, 41}},
{SocketID: 0, Id: 2, Threads: []int{2, 42}},
{SocketID: 0, Id: 8, Threads: []int{3, 43}},
{SocketID: 0, Id: 9, Threads: []int{4, 44}},
{SocketID: 0, Id: 16, Threads: []int{5, 45}},
{SocketID: 0, Id: 17, Threads: []int{6, 46}},
{SocketID: 0, Id: 18, Threads: []int{7, 47}},
{SocketID: 0, Id: 24, Threads: []int{8, 48}},
{SocketID: 0, Id: 25, Threads: []int{9, 49}},
{SocketID: 1, Id: 3, Threads: []int{10, 50}},
{SocketID: 1, Id: 4, Threads: []int{11, 51}},
{SocketID: 1, Id: 10, Threads: []int{12, 52}},
{SocketID: 1, Id: 11, Threads: []int{13, 53}},
{SocketID: 1, Id: 12, Threads: []int{14, 54}},
{SocketID: 1, Id: 19, Threads: []int{15, 55}},
{SocketID: 1, Id: 20, Threads: []int{16, 56}},
{SocketID: 1, Id: 26, Threads: []int{17, 57}},
{SocketID: 1, Id: 27, Threads: []int{18, 58}},
{SocketID: 1, Id: 28, Threads: []int{19, 59}},
},
},
{Id: 1,
Cores: []cadvisorapi.Core{
{SocketID: 2, Id: 0, Threads: []int{20, 60}},
{SocketID: 2, Id: 1, Threads: []int{21, 61}},
{SocketID: 2, Id: 2, Threads: []int{22, 62}},
{SocketID: 2, Id: 8, Threads: []int{23, 63}},
{SocketID: 2, Id: 9, Threads: []int{24, 64}},
{SocketID: 2, Id: 16, Threads: []int{25, 65}},
{SocketID: 2, Id: 17, Threads: []int{26, 66}},
{SocketID: 2, Id: 18, Threads: []int{27, 67}},
{SocketID: 2, Id: 24, Threads: []int{28, 68}},
{SocketID: 2, Id: 25, Threads: []int{29, 69}},
{SocketID: 3, Id: 3, Threads: []int{30, 70}},
{SocketID: 3, Id: 4, Threads: []int{31, 71}},
{SocketID: 3, Id: 10, Threads: []int{32, 72}},
{SocketID: 3, Id: 11, Threads: []int{33, 73}},
{SocketID: 3, Id: 12, Threads: []int{34, 74}},
{SocketID: 3, Id: 19, Threads: []int{35, 75}},
{SocketID: 3, Id: 20, Threads: []int{36, 76}},
{SocketID: 3, Id: 26, Threads: []int{37, 77}},
{SocketID: 3, Id: 27, Threads: []int{38, 78}},
{SocketID: 3, Id: 28, Threads: []int{39, 79}},
},
},
},
},
want: &CPUTopology{
NumCPUs: 80,
NumSockets: 4,
NumCores: 40,
NumNUMANodes: 2,
CPUDetails: map[int]CPUInfo{
0: {CoreID: 0, SocketID: 0, NUMANodeID: 0},
1: {CoreID: 1, SocketID: 0, NUMANodeID: 0},
2: {CoreID: 2, SocketID: 0, NUMANodeID: 0},
3: {CoreID: 3, SocketID: 0, NUMANodeID: 0},
4: {CoreID: 4, SocketID: 0, NUMANodeID: 0},
5: {CoreID: 5, SocketID: 0, NUMANodeID: 0},
6: {CoreID: 6, SocketID: 0, NUMANodeID: 0},
7: {CoreID: 7, SocketID: 0, NUMANodeID: 0},
8: {CoreID: 8, SocketID: 0, NUMANodeID: 0},
9: {CoreID: 9, SocketID: 0, NUMANodeID: 0},
10: {CoreID: 10, SocketID: 1, NUMANodeID: 0},
11: {CoreID: 11, SocketID: 1, NUMANodeID: 0},
12: {CoreID: 12, SocketID: 1, NUMANodeID: 0},
13: {CoreID: 13, SocketID: 1, NUMANodeID: 0},
14: {CoreID: 14, SocketID: 1, NUMANodeID: 0},
15: {CoreID: 15, SocketID: 1, NUMANodeID: 0},
16: {CoreID: 16, SocketID: 1, NUMANodeID: 0},
17: {CoreID: 17, SocketID: 1, NUMANodeID: 0},
18: {CoreID: 18, SocketID: 1, NUMANodeID: 0},
19: {CoreID: 19, SocketID: 1, NUMANodeID: 0},
20: {CoreID: 20, SocketID: 2, NUMANodeID: 1},
21: {CoreID: 21, SocketID: 2, NUMANodeID: 1},
22: {CoreID: 22, SocketID: 2, NUMANodeID: 1},
23: {CoreID: 23, SocketID: 2, NUMANodeID: 1},
24: {CoreID: 24, SocketID: 2, NUMANodeID: 1},
25: {CoreID: 25, SocketID: 2, NUMANodeID: 1},
26: {CoreID: 26, SocketID: 2, NUMANodeID: 1},
27: {CoreID: 27, SocketID: 2, NUMANodeID: 1},
28: {CoreID: 28, SocketID: 2, NUMANodeID: 1},
29: {CoreID: 29, SocketID: 2, NUMANodeID: 1},
30: {CoreID: 30, SocketID: 3, NUMANodeID: 1},
31: {CoreID: 31, SocketID: 3, NUMANodeID: 1},
32: {CoreID: 32, SocketID: 3, NUMANodeID: 1},
33: {CoreID: 33, SocketID: 3, NUMANodeID: 1},
34: {CoreID: 34, SocketID: 3, NUMANodeID: 1},
35: {CoreID: 35, SocketID: 3, NUMANodeID: 1},
36: {CoreID: 36, SocketID: 3, NUMANodeID: 1},
37: {CoreID: 37, SocketID: 3, NUMANodeID: 1},
38: {CoreID: 38, SocketID: 3, NUMANodeID: 1},
39: {CoreID: 39, SocketID: 3, NUMANodeID: 1},
40: {CoreID: 0, SocketID: 0, NUMANodeID: 0},
41: {CoreID: 1, SocketID: 0, NUMANodeID: 0},
42: {CoreID: 2, SocketID: 0, NUMANodeID: 0},
43: {CoreID: 3, SocketID: 0, NUMANodeID: 0},
44: {CoreID: 4, SocketID: 0, NUMANodeID: 0},
45: {CoreID: 5, SocketID: 0, NUMANodeID: 0},
46: {CoreID: 6, SocketID: 0, NUMANodeID: 0},
47: {CoreID: 7, SocketID: 0, NUMANodeID: 0},
48: {CoreID: 8, SocketID: 0, NUMANodeID: 0},
49: {CoreID: 9, SocketID: 0, NUMANodeID: 0},
50: {CoreID: 10, SocketID: 1, NUMANodeID: 0},
51: {CoreID: 11, SocketID: 1, NUMANodeID: 0},
52: {CoreID: 12, SocketID: 1, NUMANodeID: 0},
53: {CoreID: 13, SocketID: 1, NUMANodeID: 0},
54: {CoreID: 14, SocketID: 1, NUMANodeID: 0},
55: {CoreID: 15, SocketID: 1, NUMANodeID: 0},
56: {CoreID: 16, SocketID: 1, NUMANodeID: 0},
57: {CoreID: 17, SocketID: 1, NUMANodeID: 0},
58: {CoreID: 18, SocketID: 1, NUMANodeID: 0},
59: {CoreID: 19, SocketID: 1, NUMANodeID: 0},
60: {CoreID: 20, SocketID: 2, NUMANodeID: 1},
61: {CoreID: 21, SocketID: 2, NUMANodeID: 1},
62: {CoreID: 22, SocketID: 2, NUMANodeID: 1},
63: {CoreID: 23, SocketID: 2, NUMANodeID: 1},
64: {CoreID: 24, SocketID: 2, NUMANodeID: 1},
65: {CoreID: 25, SocketID: 2, NUMANodeID: 1},
66: {CoreID: 26, SocketID: 2, NUMANodeID: 1},
67: {CoreID: 27, SocketID: 2, NUMANodeID: 1},
68: {CoreID: 28, SocketID: 2, NUMANodeID: 1},
69: {CoreID: 29, SocketID: 2, NUMANodeID: 1},
70: {CoreID: 30, SocketID: 3, NUMANodeID: 1},
71: {CoreID: 31, SocketID: 3, NUMANodeID: 1},
72: {CoreID: 32, SocketID: 3, NUMANodeID: 1},
73: {CoreID: 33, SocketID: 3, NUMANodeID: 1},
74: {CoreID: 34, SocketID: 3, NUMANodeID: 1},
75: {CoreID: 35, SocketID: 3, NUMANodeID: 1},
76: {CoreID: 36, SocketID: 3, NUMANodeID: 1},
77: {CoreID: 37, SocketID: 3, NUMANodeID: 1},
78: {CoreID: 38, SocketID: 3, NUMANodeID: 1},
79: {CoreID: 39, SocketID: 3, NUMANodeID: 1},
},
},
wantErr: false,
},
{
name: "DualSocketNoHT",
machineInfo: cadvisorapi.MachineInfo{