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-rw-r--r--test/benchmarks/README.md81
1 files changed, 60 insertions, 21 deletions
diff --git a/test/benchmarks/README.md b/test/benchmarks/README.md
index 9ff602cf1..d1bbabf6f 100644
--- a/test/benchmarks/README.md
+++ b/test/benchmarks/README.md
@@ -13,33 +13,51 @@ To run benchmarks you will need:
* Docker installed (17.09.0 or greater).
-The easiest way to run benchmarks is to use the script at
-//scripts/benchmark.sh.
+The easiest way to setup runsc for running benchmarks is to use the make file.
+From the root directory:
-If not using the script, you will need:
+* Download images: `make load-all-images`
+* Install runsc suitable for benchmarking, which should probably not have
+ strace or debug logs enabled. For example:`make configure RUNTIME=myrunsc
+ ARGS=--platform=kvm`.
+* Restart docker: `sudo service docker restart`
-* `runsc` configured with docker
+You should now have a runtime with the following options configured in
+`/etc/docker/daemon.json`
-Note: benchmarks call the runtime by name. If docker can run it with
-`--runtime=` flag, these tools should work.
+```
+"myrunsc": {
+ "path": "/tmp/myrunsc/runsc",
+ "runtimeArgs": [
+ "--debug-log",
+ "/tmp/bench/logs/runsc.log.%TEST%.%TIMESTAMP%.%COMMAND%",
+ "--platform=kvm"
+ ]
+ },
+
+```
+
+This runtime has been configured with a debugging off and strace logs off and is
+using kvm for demonstration.
## Running benchmarks
-The easiest way to run is with the script at //scripts/benchmarks.sh. The script
-will run all benchmarks under //test/benchmarks if a target is not provided.
+Given the runtime above runtime `myrunsc`, run benchmarks with the following:
-```bash
-./script/benchmarks.sh //path/to/target
+```
+make sudo TARGETS=//path/to:target ARGS="--runtime=myrunsc -test.v \
+ -test.bench=." OPTIONS="-c opt
```
-If you want to run benchmarks manually:
-
-* Run `make load-all-images` from `//`
-* Run with:
+For example, to run only the Iperf tests:
-```bash
-bazel test --test_arg=--runtime=RUNTIME -c opt --test_output=streamed --test_timeout=600 --test_arg=-test.bench=. --nocache_test_results //path/to/target
```
+make sudo TARGETS=//test/benchmarks/network:network_test \
+ ARGS="--runtime=myrunsc -test.v -test.bench=Iperf" OPTIONS="-c opt"
+```
+
+Benchmarks are run with root as some benchmarks require root privileges to do
+things like drop caches.
## Writing benchmarks
@@ -69,6 +87,7 @@ var h harness.Harness
func BenchmarkMyCoolOne(b *testing.B) {
machine, err := h.GetMachine()
// check err
+ defer machine.CleanUp()
ctx := context.Background()
container := machine.GetContainer(ctx, b)
@@ -82,7 +101,7 @@ func BenchmarkMyCoolOne(b *testing.B) {
Image: "benchmarks/my-cool-image",
Env: []string{"MY_VAR=awesome"},
other options...see dockerutil
- }, "sh", "-c", "echo MY_VAR" ...)
+ }, "sh", "-c", "echo MY_VAR")
//check err
b.StopTimer()
@@ -107,12 +126,32 @@ Some notes on the above:
flags, remote virtual machines (eventually), and other services.
* Respect `b.N` in that users of the benchmark may want to "run for an hour"
or something of the sort.
-* Use the `b.ReportMetric` method to report custom metrics.
+* Use the `b.ReportMetric()` method to report custom metrics.
* Set the timer if time is useful for reporting. There isn't a way to turn off
default metrics in testing.B (B/op, allocs/op, ns/op).
* Take a look at dockerutil at //pkg/test/dockerutil to see all methods
available from containers. The API is based on the "official"
[docker API for golang](https://pkg.go.dev/mod/github.com/docker/docker).
-* `harness.GetMachine` marks how many machines this tests needs. If you have a
- client and server and to mark them as multiple machines, call it
- `GetMachine` twice.
+* `harness.GetMachine()` marks how many machines this tests needs. If you have
+ a client and server and to mark them as multiple machines, call
+ `harness.GetMachine()` twice.
+
+## Profiling
+
+For profiling, the runtime is required to have the `--profile` flag enabled.
+This flag loosens seccomp filters so that the runtime can write profile data to
+disk. This configuration is not recommended for production.
+
+* Install runsc with the `--profile` flag: `make configure RUNTIME=myrunsc
+ ARGS="--profile --platform=kvm --vfs2"`. The kvm and vfs2 flags are not
+ required, but are included for demonstration.
+* Restart docker: `sudo service docker restart`
+
+To run and generate CPU profiles fs_test test run:
+
+```
+make sudo TARGETS=//test/benchmarks/fs:fs_test \
+ ARGS="--runtime=myrunsc -test.v -test.bench=. --pprof-cpu" OPTIONS="-c opt"
+```
+
+Profiles would be at: `/tmp/profile/myrunsc/CONTAINERNAME/cpu.pprof`