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authorOndrej Fabry <ofabry@cisco.com>2019-02-08 01:16:32 +0100
committerOndrej Fabry <ofabry@cisco.com>2019-02-08 01:16:32 +0100
commitfa21c9d726ebb807895a8571af9a16dab5cd8d6e (patch)
tree4597d483f90e374e89f3923324b531a56217a0f9 /examples/perf-bench
parent8ba70a7b13950593aab9863246f830eda450f06b (diff)
Generator improvements and cleanup
- generator now supports include-comments flag (as opt-in) - minor code cleanup in binapi-generator - remove obsolete unit tests - flatten examples from examples/cmd folder - introduce constant for checking compatibility in future versions Change-Id: I3545f2ba4b869a3b51d6d0de7e742f3f1e1be392 Signed-off-by: Ondrej Fabry <ofabry@cisco.com>
Diffstat (limited to 'examples/perf-bench')
-rw-r--r--examples/perf-bench/perf-bench.go126
1 files changed, 126 insertions, 0 deletions
diff --git a/examples/perf-bench/perf-bench.go b/examples/perf-bench/perf-bench.go
new file mode 100644
index 0000000..24d3ebb
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+++ b/examples/perf-bench/perf-bench.go
@@ -0,0 +1,126 @@
+// Copyright (c) 2017 Cisco and/or its affiliates.
+//
+// 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.
+
+// Binary simple-client is an example VPP management application that exercises the
+// govpp API on real-world use-cases.
+package main
+
+import (
+ "flag"
+ "fmt"
+ "log"
+ "time"
+
+ "github.com/pkg/profile"
+ "github.com/sirupsen/logrus"
+
+ "git.fd.io/govpp.git"
+ "git.fd.io/govpp.git/api"
+ "git.fd.io/govpp.git/core"
+ "git.fd.io/govpp.git/examples/bin_api/vpe"
+)
+
+const (
+ defaultSyncRequestCount = 1000
+ defaultAsyncRequestCount = 10000
+)
+
+func main() {
+ // parse optional flags
+ var sync, prof bool
+ var cnt int
+ flag.BoolVar(&sync, "sync", false, "run synchronous perf test")
+ flag.IntVar(&cnt, "count", 0, "count of requests to be sent to VPP")
+ flag.BoolVar(&prof, "prof", false, "generate profile data")
+ flag.Parse()
+
+ if cnt == 0 {
+ // no specific count defined - use defaults
+ if sync {
+ cnt = defaultSyncRequestCount
+ } else {
+ cnt = defaultAsyncRequestCount
+ }
+ }
+
+ if prof {
+ defer profile.Start().Stop()
+ }
+
+ // connect to VPP
+ conn, err := govpp.Connect("")
+ if err != nil {
+ log.Fatalln("Error:", err)
+ }
+ defer conn.Disconnect()
+
+ // create an API channel
+ ch, err := conn.NewAPIChannelBuffered(cnt, cnt)
+ if err != nil {
+ log.Fatalln("Error:", err)
+ }
+ defer ch.Close()
+
+ // log only errors
+ core.SetLogger(&logrus.Logger{Level: logrus.ErrorLevel})
+
+ // run the test & measure the time
+ start := time.Now()
+
+ if sync {
+ // run synchronous test
+ syncTest(ch, cnt)
+ } else {
+ // run asynchronous test
+ asyncTest(ch, cnt)
+ }
+
+ elapsed := time.Since(start)
+ fmt.Println("Test took:", elapsed)
+ fmt.Printf("Requests per second: %.0f\n", float64(cnt)/elapsed.Seconds())
+}
+
+func syncTest(ch api.Channel, cnt int) {
+ fmt.Printf("Running synchronous perf test with %d requests...\n", cnt)
+
+ for i := 0; i < cnt; i++ {
+ req := &vpe.ControlPing{}
+ reply := &vpe.ControlPingReply{}
+
+ if err := ch.SendRequest(req).ReceiveReply(reply); err != nil {
+ log.Fatalln("Error in reply:", err)
+ }
+ }
+}
+
+func asyncTest(ch api.Channel, cnt int) {
+ fmt.Printf("Running asynchronous perf test with %d requests...\n", cnt)
+
+ ctxChan := make(chan api.RequestCtx, cnt)
+
+ go func() {
+ for i := 0; i < cnt; i++ {
+ ctxChan <- ch.SendRequest(&vpe.ControlPing{})
+ }
+ close(ctxChan)
+ fmt.Printf("Sending asynchronous requests finished\n")
+ }()
+
+ for ctx := range ctxChan {
+ reply := &vpe.ControlPingReply{}
+ if err := ctx.ReceiveReply(reply); err != nil {
+ log.Fatalln("Error in reply:", err)
+ }
+ }
+}