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bench_test.go
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bench_test.go
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// Copyright 2017-21 the original author or 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 pbf
import (
"context"
"io"
"os"
"runtime/trace"
"strconv"
"testing"
)
func BenchmarkLondon(b *testing.B) {
in, err := os.Open("testdata/greater-london.osm.pbf")
if err != nil {
b.Errorf("Error reading file: %v", err)
}
defer in.Close()
t, err := strconv.ParseBool(os.Getenv("PBF_TRACE"))
if err == nil && t {
f, e := os.Create("trace.out")
if e != nil {
b.Errorf("Error opening trace file: %v", e)
} else {
defer f.Close()
_ = trace.Start(f)
defer trace.Stop()
}
}
pbs, _ := strconv.Atoi(os.Getenv("PBF_PROTO_BUFFER_SIZE"))
icl, _ := strconv.Atoi(os.Getenv("PBF_INPUT_CHANNEL_LENGTH"))
ocl, _ := strconv.Atoi(os.Getenv("PBF_OUTPUT_CHANNEL_LENGTH"))
dcl, _ := strconv.Atoi(os.Getenv("PBF_DECODED_CHANNEL_LENGTH"))
ncpu, _ := strconv.Atoi(os.Getenv("PBF_NCPU"))
for n := 0; n < b.N; n++ {
if _, err = in.Seek(0, 0); err != nil {
b.Fatal(err)
}
if decoder, err := NewDecoder(context.Background(), in,
WithProtoBufferSize(pbs),
WithInputChannelLength(icl),
WithOutputChannelLength(ocl),
WithDecodedChannelLength(dcl),
WithNCpus(uint16(ncpu))); err != nil {
b.Fatal(err)
} else {
for {
if _, err := decoder.Decode(); err == io.EOF {
break
} else if err != nil {
b.Fatal(err)
}
}
}
}
}