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author | Dan Albert <danalbert@google.com> | 2016-01-14 16:43:34 -0800 |
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committer | Dan Albert <danalbert@google.com> | 2016-01-22 14:51:24 -0800 |
commit | 3186be22b6598fbd467b126347d1c7f48ccb7f71 (patch) | |
tree | 2b176d3ce027fa5340160978effeb88ec9054aaa /gcc-4.8.1/libgo/go/encoding/json/bench_test.go | |
parent | a45222a0e5951558bd896b0513bf638eb376e086 (diff) | |
download | toolchain_gcc-3186be22b6598fbd467b126347d1c7f48ccb7f71.tar.gz toolchain_gcc-3186be22b6598fbd467b126347d1c7f48ccb7f71.tar.bz2 toolchain_gcc-3186be22b6598fbd467b126347d1c7f48ccb7f71.zip |
Check in a pristine copy of GCC 4.8.1.
The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.
GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.
Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3
Diffstat (limited to 'gcc-4.8.1/libgo/go/encoding/json/bench_test.go')
-rw-r--r-- | gcc-4.8.1/libgo/go/encoding/json/bench_test.go | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/gcc-4.8.1/libgo/go/encoding/json/bench_test.go b/gcc-4.8.1/libgo/go/encoding/json/bench_test.go new file mode 100644 index 000000000..29dbc26d4 --- /dev/null +++ b/gcc-4.8.1/libgo/go/encoding/json/bench_test.go @@ -0,0 +1,189 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Large data benchmark. +// The JSON data is a summary of agl's changes in the +// go, webkit, and chromium open source projects. +// We benchmark converting between the JSON form +// and in-memory data structures. + +package json + +import ( + "bytes" + "compress/gzip" + "io/ioutil" + "os" + "testing" +) + +type codeResponse struct { + Tree *codeNode `json:"tree"` + Username string `json:"username"` +} + +type codeNode struct { + Name string `json:"name"` + Kids []*codeNode `json:"kids"` + CLWeight float64 `json:"cl_weight"` + Touches int `json:"touches"` + MinT int64 `json:"min_t"` + MaxT int64 `json:"max_t"` + MeanT int64 `json:"mean_t"` +} + +var codeJSON []byte +var codeStruct codeResponse + +func codeInit() { + f, err := os.Open("testdata/code.json.gz") + if err != nil { + panic(err) + } + defer f.Close() + gz, err := gzip.NewReader(f) + if err != nil { + panic(err) + } + data, err := ioutil.ReadAll(gz) + if err != nil { + panic(err) + } + + codeJSON = data + + if err := Unmarshal(codeJSON, &codeStruct); err != nil { + panic("unmarshal code.json: " + err.Error()) + } + + if data, err = Marshal(&codeStruct); err != nil { + panic("marshal code.json: " + err.Error()) + } + + if !bytes.Equal(data, codeJSON) { + println("different lengths", len(data), len(codeJSON)) + for i := 0; i < len(data) && i < len(codeJSON); i++ { + if data[i] != codeJSON[i] { + println("re-marshal: changed at byte", i) + println("orig: ", string(codeJSON[i-10:i+10])) + println("new: ", string(data[i-10:i+10])) + break + } + } + panic("re-marshal code.json: different result") + } +} + +func BenchmarkCodeEncoder(b *testing.B) { + if codeJSON == nil { + b.StopTimer() + codeInit() + b.StartTimer() + } + enc := NewEncoder(ioutil.Discard) + for i := 0; i < b.N; i++ { + if err := enc.Encode(&codeStruct); err != nil { + b.Fatal("Encode:", err) + } + } + b.SetBytes(int64(len(codeJSON))) +} + +func BenchmarkCodeMarshal(b *testing.B) { + if codeJSON == nil { + b.StopTimer() + codeInit() + b.StartTimer() + } + for i := 0; i < b.N; i++ { + if _, err := Marshal(&codeStruct); err != nil { + b.Fatal("Marshal:", err) + } + } + b.SetBytes(int64(len(codeJSON))) +} + +func BenchmarkCodeDecoder(b *testing.B) { + if codeJSON == nil { + b.StopTimer() + codeInit() + b.StartTimer() + } + var buf bytes.Buffer + dec := NewDecoder(&buf) + var r codeResponse + for i := 0; i < b.N; i++ { + buf.Write(codeJSON) + // hide EOF + buf.WriteByte('\n') + buf.WriteByte('\n') + buf.WriteByte('\n') + if err := dec.Decode(&r); err != nil { + b.Fatal("Decode:", err) + } + } + b.SetBytes(int64(len(codeJSON))) +} + +func BenchmarkCodeUnmarshal(b *testing.B) { + if codeJSON == nil { + b.StopTimer() + codeInit() + b.StartTimer() + } + for i := 0; i < b.N; i++ { + var r codeResponse + if err := Unmarshal(codeJSON, &r); err != nil { + b.Fatal("Unmmarshal:", err) + } + } + b.SetBytes(int64(len(codeJSON))) +} + +func BenchmarkCodeUnmarshalReuse(b *testing.B) { + if codeJSON == nil { + b.StopTimer() + codeInit() + b.StartTimer() + } + var r codeResponse + for i := 0; i < b.N; i++ { + if err := Unmarshal(codeJSON, &r); err != nil { + b.Fatal("Unmmarshal:", err) + } + } +} + +func BenchmarkUnmarshalString(b *testing.B) { + data := []byte(`"hello, world"`) + var s string + + for i := 0; i < b.N; i++ { + if err := Unmarshal(data, &s); err != nil { + b.Fatal("Unmarshal:", err) + } + } +} + +func BenchmarkUnmarshalFloat64(b *testing.B) { + var f float64 + data := []byte(`3.14`) + + for i := 0; i < b.N; i++ { + if err := Unmarshal(data, &f); err != nil { + b.Fatal("Unmarshal:", err) + } + } +} + +func BenchmarkUnmarshalInt64(b *testing.B) { + var x int64 + data := []byte(`3`) + + for i := 0; i < b.N; i++ { + if err := Unmarshal(data, &x); err != nil { + b.Fatal("Unmarshal:", err) + } + } +} |