Port nginx and move parsers to own package.

This change:
- Ports the nginx benchmark.
- Switches the Httpd benchmark to use 'hey' as a client.
- Moves all parsers to their own package 'tools'.

Parsers are moved to their own package because 1) parsing output of a command
is often dependent on the format of the command (e.g. 'fio --json'), 2) to
enable easier reuse, and 3) clean up and simplify actual running benchmarks
(no TestParser functions and ugly sample output in benchmark files).

PiperOrigin-RevId: 324144165

1 files changed, 81 insertions, 0 deletions

diff --git a/test/benchmarks/tools/hey_test.go b/test/benchmarks/tools/hey_test.go
new file mode 100644
index 000000000..e0cab1f52
--- /dev/null
+++ b/test/benchmarks/tools/hey_test.go
@@ -0,0 +1,81 @@
+// Copyright 2020 The gVisor 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.
+
+package tools
+
+import "testing"
+
+// TestHey checks the Hey parsers on sample output.
+func TestHey(t *testing.T) {
+	sampleData := `
+	Summary:
+          Total:	2.2391 secs
+          Slowest:	1.6292 secs
+          Fastest:	0.0066 secs
+          Average:	0.5351 secs
+          Requests/sec:	89.3202
+
+          Total data:	841200 bytes
+          Size/request:	4206 bytes
+
+        Response time histogram:
+          0.007 [1]	|
+          0.169 [0]	|
+          0.331 [149]	|■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
+          0.493 [0]	|
+          0.656 [0]	|
+          0.818 [0]	|
+          0.980 [0]	|
+          1.142 [0]	|
+          1.305 [0]	|
+          1.467 [49]	|■■■■■■■■■■■■■
+          1.629 [1]	|
+
+
+        Latency distribution:
+          10% in 0.2149 secs
+          25% in 0.2449 secs
+          50% in 0.2703 secs
+          75% in 1.3315 secs
+          90% in 1.4045 secs
+          95% in 1.4232 secs
+          99% in 1.4362 secs
+
+        Details (average, fastest, slowest):
+          DNS+dialup:	0.0002 secs, 0.0066 secs, 1.6292 secs
+          DNS-lookup:	0.0000 secs, 0.0000 secs, 0.0000 secs
+          req write:	0.0000 secs, 0.0000 secs, 0.0012 secs
+          resp wait:	0.5225 secs, 0.0064 secs, 1.4346 secs
+          resp read:	0.0122 secs, 0.0001 secs, 0.2006 secs
+
+        Status code distribution:
+          [200]	200 responses
+	`
+	hey := Hey{}
+	want := 89.3202
+	got, err := hey.parseRequestsPerSecond(sampleData)
+	if err != nil {
+		t.Fatalf("failed to parse request per second with: %v", err)
+	} else if got != want {
+		t.Fatalf("got: %f, want: %f", got, want)
+	}
+
+	want = 0.5351
+	got, err = hey.parseAverageLatency(sampleData)
+	if err != nil {
+		t.Fatalf("failed to parse average latency with: %v", err)
+	} else if got != want {
+		t.Fatalf("got: %f, want: %f", got, want)
+	}
+}