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Merge pull request #88415 from ingvagabund/readme-for-metrics-based-scheduler-perf-tests

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scheduler_perf: describe how to run BenchmarkPerfScheduling manually
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Kubernetes Prow Robot 2020-02-24 13:11:47 -08:00 committed by GitHub
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36
test/integration/scheduler_perf/README.md
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@ -31,14 +31,42 @@ Currently the test suite has the following:
How To Run
------
## Density tests
```shell
# In Kubernetes root path
make generated_files
cd test/integration/scheduler_perf
./test-performance.sh
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=true -logtostderr=true -run=." KUBE_TIMEOUT="--timeout=60m" SHORT="--short=false"
```
## Benchmark tests
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling"
```
The benchmark suite runs all the tests specified under config/performance-config.yaml.
Once the benchmark is finished, JSON file with metrics is available in the current directory (test/integration/scheduler_perf). Look for `BenchmarkPerfScheduling_YYYY-MM-DDTHH:MM:SSZ.json`.
You can use `-data-items-dir` to generate the metrics file elsewhere.
In case you want to run a specific test in the suite, you can specify the test through `-bench` flag:
Also, bench time is explicitly set to 1ns (`-benchtime=1ns` flag) so each test is run only once.
Otherwise, the golang benchmark framework will try to run a test more than once in case it ran for less than 1s.
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling/SchedulingBasic/5000Nodes/5000InitPods/1000PodsToSchedule"
```
To produce a cpu profile:
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TIMEOUT="-timeout=3600s" KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling -cpuprofile ~/cpu-profile.out"
```
<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/test/component/scheduler/perf/README.md?pixel)]()

52
test/integration/scheduler_perf/test-performance.sh
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@ -1,52 +0,0 @@
#!/usr/bin/env bash
# Copyright 2014 The Kubernetes Authors.
#
# 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.
set -o errexit
set -o nounset
set -o pipefail
KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../../../
source "${KUBE_ROOT}/hack/lib/init.sh"
kube::golang::setup_env
DIR_BASENAME=$(dirname "${BASH_SOURCE[0]}")
pushd "${DIR_BASENAME}"
cleanup() {
popd 2> /dev/null
kube::etcd::cleanup
kube::log::status "performance test cleanup complete"
}
trap cleanup EXIT
kube::etcd::start
# We are using the benchmark suite to do profiling. Because it only runs a few pods and
# theoretically it has less variance.
if ${RUN_BENCHMARK:-false}; then
kube::log::status "performance test (benchmark) compiling"
go test -c -o "perf.test"
kube::log::status "performance test (benchmark) start"
"./perf.test" -test.bench=. -test.run=xxxx -test.cpuprofile=prof.out -test.short=false
kube::log::status "...benchmark tests finished"
fi
# Running density tests. It might take a long time.
kube::log::status "performance test (density) start"
go test -test.run=. -test.timeout=60m -test.short=false
kube::log::status "...density tests finished"