Evgenii Stratonikov
d6ea4d0bbf
```
goos: linux
goarch: amd64
pkg: git.frostfs.info/TrueCloudLab/zapjournald
cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
│ 1 │ 2 │
│ sec/op │ sec/op vs base │
Logger/standard/no_fields-8 450.3n ± 2% 452.9n ± 3% ~ (p=0.138 n=10)
Logger/standard/application_fields-8 610.4n ± 1% 608.4n ± 1% ~ (p=0.325 n=10)
Logger/standard/journald_fields-8 595.8n ± 5% 604.5n ± 1% ~ (p=0.075 n=10)
Logger/journald/no_fields-8 1809.0n ± 4% 900.4n ± 1% -50.23% (p=0.000 n=10)
Logger/journald/application_fields-8 2.037µ ± 5% 1.087µ ± 1% -46.62% (p=0.000 n=10)
Logger/journald/journald_fields-8 2.054µ ± 4% 1.119µ ± 1% -45.52% (p=0.000 n=10)
geomean 1.036µ 753.1n -27.33%
│ 1 │ 2 │
│ B/op │ B/op vs base │
Logger/standard/no_fields-8 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
Logger/standard/application_fields-8 128.0 ± 0% 128.0 ± 0% ~ (p=1.000 n=10) ¹
Logger/standard/journald_fields-8 64.00 ± 0% 64.00 ± 0% ~ (p=1.000 n=10) ¹
Logger/journald/no_fields-8 1206.000 ± 0% 5.000 ± 0% -99.59% (p=0.000 n=10)
Logger/journald/application_fields-8 1494.0 ± 0% 133.0 ± 0% -91.10% (p=0.000 n=10)
Logger/journald/journald_fields-8 1478.00 ± 0% 85.00 ± 0% -94.25% (p=0.000 n=10)
geomean ² -83.36% ²
¹ all samples are equal
² summaries must be >0 to compute geomean
│ 1 │ 2 │
│ allocs/op │ allocs/op vs base │
Logger/standard/no_fields-8 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
Logger/standard/application_fields-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
Logger/standard/journald_fields-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
Logger/journald/no_fields-8 29.000 ± 0% 1.000 ± 0% -96.55% (p=0.000 n=10)
Logger/journald/application_fields-8 30.000 ± 0% 2.000 ± 0% -93.33% (p=0.000 n=10)
Logger/journald/journald_fields-8 31.000 ± 0% 3.000 ± 0% -90.32% (p=0.000 n=10)
geomean ² -75.38% ²
¹ all samples are equal
² summaries must be >0 to compute geomean
```
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package zapjournald
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import (
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"bytes"
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"strings"
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"go.uber.org/zap/buffer"
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)
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var pool = buffer.NewPool()
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func writeFieldBytes(buf *buffer.Buffer, name string, value []byte) {
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buf.Write([]byte(name))
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if bytes.ContainsRune(value, '\n') {
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// According to the format, if the value includes a newline
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// need to write the field name, plus a newline, then the
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// size (64bit LE), the field data and a final newline.
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buf.Write([]byte{'\n'})
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appendUint64Binary(buf, uint64(len(value)))
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} else {
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buf.Write([]byte{'='})
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}
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buf.Write(value)
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buf.Write([]byte{'\n'})
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}
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func writeField(buf *buffer.Buffer, name string, value string) {
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buf.Write([]byte(name))
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if strings.ContainsRune(value, '\n') {
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// According to the format, if the value includes a newline
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// need to write the field name, plus a newline, then the
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// size (64bit LE), the field data and a final newline.
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buf.Write([]byte{'\n'})
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// 1 allocation here.
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// binary.Write(w, binary.LittleEndian, uint64(len(value)))
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appendUint64Binary(buf, uint64(len(value)))
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} else {
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buf.Write([]byte{'='})
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}
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buf.WriteString(value)
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buf.Write([]byte{'\n'})
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}
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func appendUint64Binary(buf *buffer.Buffer, v uint64) {
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// Copied from https://github.com/golang/go/blob/go1.21.3/src/encoding/binary/binary.go#L119
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buf.Write([]byte{
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byte(v),
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byte(v >> 8),
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byte(v >> 16),
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byte(v >> 24),
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byte(v >> 32),
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byte(v >> 40),
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byte(v >> 48),
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byte(v >> 56),
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})
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}
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