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, 90 insertions, 0 deletions

diff --git a/test/benchmarks/tools/ab_test.go b/test/benchmarks/tools/ab_test.go
new file mode 100644
index 000000000..28ee66ec1
--- /dev/null
+++ b/test/benchmarks/tools/ab_test.go
@@ -0,0 +1,90 @@
+// 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"
+
+// TestApacheBench checks the ApacheBench parsers on sample output.
+func TestApacheBench(t *testing.T) {
+	// Sample output from apachebench.
+	sampleData := `This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
+Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
+Licensed to The Apache Software Foundation, http://www.apache.org/
+
+Benchmarking 10.10.10.10 (be patient).....done
+
+
+Server Software:        Apache/2.4.38
+Server Hostname:        10.10.10.10
+Server Port:            80
+
+Document Path:          /latin10k.txt
+Document Length:        210 bytes
+
+Concurrency Level:      1
+Time taken for tests:   0.180 seconds
+Complete requests:      100
+Failed requests:        0
+Non-2xx responses:      100
+Total transferred:      38800 bytes
+HTML transferred:       21000 bytes
+Requests per second:    556.44 [#/sec] (mean)
+Time per request:       1.797 [ms] (mean)
+Time per request:       1.797 [ms] (mean, across all concurrent requests)
+Transfer rate:          210.84 [Kbytes/sec] received
+
+Connection Times (ms)
+              min  mean[+/-sd] median   max
+Connect:        0    0   0.2      0       2
+Processing:     1    2   1.0      1       8
+Waiting:        1    1   1.0      1       7
+Total:          1    2   1.2      1      10
+
+Percentage of the requests served within a certain time (ms)
+  50%      1
+  66%      2
+  75%      2
+  80%      2
+  90%      2
+  95%      3
+  98%      7
+  99%     10
+ 100%     10 (longest request)`
+
+	ab := ApacheBench{}
+	want := 210.84
+	got, err := ab.parseTransferRate(sampleData)
+	if err != nil {
+		t.Fatalf("failed to parse transfer rate with error: %v", err)
+	} else if got != want {
+		t.Fatalf("parseTransferRate got: %f, want: %f", got, want)
+	}
+
+	want = 2.0
+	got, err = ab.parseLatency(sampleData)
+	if err != nil {
+		t.Fatalf("failed to parse transfer rate with error: %v", err)
+	} else if got != want {
+		t.Fatalf("parseLatency got: %f, want: %f", got, want)
+	}
+
+	want = 556.44
+	got, err = ab.parseRequestsPerSecond(sampleData)
+	if err != nil {
+		t.Fatalf("failed to parse transfer rate with error: %v", err)
+	} else if got != want {
+		t.Fatalf("parseRequestsPerSecond got: %f, want: %f", got, want)
+	}
+}