Fix CPUPercent for windows and add functional test #1089
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samuelkarp
reviewed
Nov 17, 2017
agent/api/task_windows.go
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| @@ -62,7 +62,12 @@ func getCanonicalPath(path string) string { | |||
| // passed to Docker API. | |||
| func (task *Task) platformHostConfigOverride(hostConfig *docker.HostConfig) error { | |||
| task.overrideDefaultMemorySwappiness(hostConfig) | |||
| hostConfig.CPUPercent = hostConfig.CPUShares / int64(cpuShareScaleFactor) | |||
| // Convert the CPUShares to CPUPercent | |||
| hostConfig.CPUPercent = hostConfig.CPUShares * 100 / int64(cpuShareScaleFactor) | |||
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What's the 100 here? Please make a named constant expressing what this is.
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CPUPercent is the integer of percentage, this is the conversion: 25% -> 25
agent/functional_tests/util/utils.go
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| @@ -266,36 +266,36 @@ func DeleteCluster(t *testing.T, clusterName string) { | |||
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| // VerifyMetrics whether the response is as expected | |||
| // the expected value can be 0 or positive | |||
| func VerifyMetrics(cwclient *cloudwatch.CloudWatch, params *cloudwatch.GetMetricStatisticsInput, idleCluster bool) error { | |||
| func VerifyMetrics(cwclient *cloudwatch.CloudWatch, params *cloudwatch.GetMetricStatisticsInput, idleCluster bool) (error, *cloudwatch.Datapoint) { | |||
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Please reorder the return to be (*cloudwatch.Datapoint, error).
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| tdOverrides := make(map[string]string) | ||
| // Set the container cpu percentage 25% | ||
| tdOverrides["$$$$CPUSHARE$$$$"] = strconv.Itoa(cpuNum * 1024 / 4) |
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Can you * 0.25 instead of / 4 so that it's clearer with respect to your comment?
Can you add a constant for 1024? cpuSharesPerCore would be reasonable.
| assert.NoError(t, err, "Task is running, verify metrics for CPU utilization failed") | ||
| // Also verify the cpu usage is around 25% | ||
| assert.True(t, *metrics.Average < 0.3) |
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I think you can use assert.InDelta.
assert.InDelta(t, 0.25, *metrics.Average, 0.05)| @@ -0,0 +1,24 @@ | |||
| package main | |||
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This needs the license header.
| WORKDIR /gopath | ||
| COPY main.go . | ||
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| CMD ["go", "run", "main.go", "-concurrency", "1000"] |
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Why compile it at runtime?
RUN go build main.go -o cpuhog
ENTRYPOINT ["./cpuhog"]
CMD ["-concurrency", "1000"]
richardpen
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samuelkarp
approved these changes
Nov 17, 2017
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Summary
Implementation details
Testing
make release)go build -out amazon-ecs-agent.exe ./agent)make test) passgo test -timeout=25s ./agent/...) passmake run-integ-tests) pass.\scripts\run-integ-tests.ps1) passmake run-functional-tests) pass.\scripts\run-functional-tests.ps1) passNew tests cover the changes:
yes
Description for the changelog
Licensing
This contribution is under the terms of the Apache 2.0 License: