/usr/share/gocode/src/github.com/opencontainers/runc/libcontainer/cgroups/fs/cpu_test.go is in golang-github-opencontainers-runc-dev 0.0.8+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | // +build linux
package fs
import (
"fmt"
"strconv"
"testing"
"github.com/opencontainers/runc/libcontainer/cgroups"
)
func TestCpuSetShares(t *testing.T) {
helper := NewCgroupTestUtil("cpu", t)
defer helper.cleanup()
const (
sharesBefore = 1024
sharesAfter = 512
)
helper.writeFileContents(map[string]string{
"cpu.shares": strconv.Itoa(sharesBefore),
})
helper.CgroupData.config.Resources.CpuShares = sharesAfter
cpu := &CpuGroup{}
if err := cpu.Set(helper.CgroupPath, helper.CgroupData.config); err != nil {
t.Fatal(err)
}
value, err := getCgroupParamUint(helper.CgroupPath, "cpu.shares")
if err != nil {
t.Fatalf("Failed to parse cpu.shares - %s", err)
}
if value != sharesAfter {
t.Fatal("Got the wrong value, set cpu.shares failed.")
}
}
func TestCpuSetBandWidth(t *testing.T) {
helper := NewCgroupTestUtil("cpu", t)
defer helper.cleanup()
const (
quotaBefore = 8000
quotaAfter = 5000
periodBefore = 10000
periodAfter = 7000
rtRuntimeBefore = 8000
rtRuntimeAfter = 5000
rtPeriodBefore = 10000
rtPeriodAfter = 7000
)
helper.writeFileContents(map[string]string{
"cpu.cfs_quota_us": strconv.Itoa(quotaBefore),
"cpu.cfs_period_us": strconv.Itoa(periodBefore),
"cpu.rt_runtime_us": strconv.Itoa(rtRuntimeBefore),
"cpu.rt_period_us": strconv.Itoa(rtPeriodBefore),
})
helper.CgroupData.config.Resources.CpuQuota = quotaAfter
helper.CgroupData.config.Resources.CpuPeriod = periodAfter
helper.CgroupData.config.Resources.CpuRtRuntime = rtRuntimeAfter
helper.CgroupData.config.Resources.CpuRtPeriod = rtPeriodAfter
cpu := &CpuGroup{}
if err := cpu.Set(helper.CgroupPath, helper.CgroupData.config); err != nil {
t.Fatal(err)
}
quota, err := getCgroupParamUint(helper.CgroupPath, "cpu.cfs_quota_us")
if err != nil {
t.Fatalf("Failed to parse cpu.cfs_quota_us - %s", err)
}
if quota != quotaAfter {
t.Fatal("Got the wrong value, set cpu.cfs_quota_us failed.")
}
period, err := getCgroupParamUint(helper.CgroupPath, "cpu.cfs_period_us")
if err != nil {
t.Fatalf("Failed to parse cpu.cfs_period_us - %s", err)
}
if period != periodAfter {
t.Fatal("Got the wrong value, set cpu.cfs_period_us failed.")
}
rtRuntime, err := getCgroupParamUint(helper.CgroupPath, "cpu.rt_runtime_us")
if err != nil {
t.Fatalf("Failed to parse cpu.rt_runtime_us - %s", err)
}
if rtRuntime != rtRuntimeAfter {
t.Fatal("Got the wrong value, set cpu.rt_runtime_us failed.")
}
rtPeriod, err := getCgroupParamUint(helper.CgroupPath, "cpu.rt_period_us")
if err != nil {
t.Fatalf("Failed to parse cpu.rt_period_us - %s", err)
}
if rtPeriod != rtPeriodAfter {
t.Fatal("Got the wrong value, set cpu.rt_period_us failed.")
}
}
func TestCpuStats(t *testing.T) {
helper := NewCgroupTestUtil("cpu", t)
defer helper.cleanup()
const (
kNrPeriods = 2000
kNrThrottled = 200
kThrottledTime = uint64(18446744073709551615)
)
cpuStatContent := fmt.Sprintf("nr_periods %d\n nr_throttled %d\n throttled_time %d\n",
kNrPeriods, kNrThrottled, kThrottledTime)
helper.writeFileContents(map[string]string{
"cpu.stat": cpuStatContent,
})
cpu := &CpuGroup{}
actualStats := *cgroups.NewStats()
err := cpu.GetStats(helper.CgroupPath, &actualStats)
if err != nil {
t.Fatal(err)
}
expectedStats := cgroups.ThrottlingData{
Periods: kNrPeriods,
ThrottledPeriods: kNrThrottled,
ThrottledTime: kThrottledTime}
expectThrottlingDataEquals(t, expectedStats, actualStats.CpuStats.ThrottlingData)
}
func TestNoCpuStatFile(t *testing.T) {
helper := NewCgroupTestUtil("cpu", t)
defer helper.cleanup()
cpu := &CpuGroup{}
actualStats := *cgroups.NewStats()
err := cpu.GetStats(helper.CgroupPath, &actualStats)
if err != nil {
t.Fatal("Expected not to fail, but did")
}
}
func TestInvalidCpuStat(t *testing.T) {
helper := NewCgroupTestUtil("cpu", t)
defer helper.cleanup()
cpuStatContent := `nr_periods 2000
nr_throttled 200
throttled_time fortytwo`
helper.writeFileContents(map[string]string{
"cpu.stat": cpuStatContent,
})
cpu := &CpuGroup{}
actualStats := *cgroups.NewStats()
err := cpu.GetStats(helper.CgroupPath, &actualStats)
if err == nil {
t.Fatal("Expected failed stat parsing.")
}
}
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