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nettrace: Add a new tracing library

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This commit introduces a new tracing library, that replaces
golang.org/x/net/trace, and supports (amongts other thing) nested
traces.

This is a minimal change, future patches will make use of the new
functionality.
This commit is contained in:
Alberto Bertogli
2022-03-07 01:13:34 +00:00
parent 3ebe5c5173
commit 9c6661eca2
18 changed files with 2276 additions and 54 deletions
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129
internal/nettrace/templates/index.html.tmpl Normal file
View File

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<!DOCTYPE html>
<html lang="en">
<head>
<style>
{{template "style.css"}}
</style>
<title>
{{if .Trace}}{{.Trace.Family}} - {{.Trace.Title}}
{{else if .BucketStr}}{{.Family}} - {{.BucketStr}}
{{else if .Latencies}}{{.Family}} - latency
{{else}}Traces
{{end}}
</title>
</head>
<body>
<h1>Traces</h1>
<table class="index">
{{range $name, $ftr := .FamTraces}}
<tr>
<td class="family">
<a href="?fam={{$name}}&b=0&all=true">
{{if eq $name $.Family}}<u>{{end}}
{{$name}}
{{if eq $name $.Family}}</u>{{end}}
</a>
</td>
<td class="bucket active">
{{$n := $ftr.LenActive}}
{{if and (eq $name $.Family) (eq "active" $.BucketStr)}}<u>{{end}}
<a href="?fam={{$name}}&b=-1&all={{$.AllGT}}"
{{if eq $n 0}}class="muted"{{end}}>
{{$n}} active</a>
{{if and (eq $name $.Family) (eq "active" $.BucketStr)}}</u>{{end}}
</td>
{{range $i, $b := $.Buckets}}
<td class="bucket">
{{$n := $ftr.LenBucket $i}}
{{if and (eq $name $.Family) (eq $b.String $.BucketStr)}}<u>{{end}}
<a href="?fam={{$name}}&b={{$i}}&all={{$.AllGT}}"
{{if eq $n 0}}class="muted"{{end}}>
&ge;{{$b}}</a>
{{if and (eq $name $.Family) (eq $b.String $.BucketStr)}}</u>{{end}}
</td>
{{end}}
<td class="bucket">
{{$n := $ftr.LenErrors}}
{{if and (eq $name $.Family) (eq "errors" $.BucketStr)}}<u>{{end}}
<a href="?fam={{$name}}&b=-2&all={{$.AllGT}}"
{{if eq $n 0}}class="muted"{{end}}>
errors</a>
{{if and (eq $name $.Family) (eq "errors" $.BucketStr)}}</u>{{end}}
</td>
<td class="bucket">
<a href="?fam={{$name}}&lat=true&all={{$.AllGT}}">[latency]</a>
</td>
</tr>
{{end}}
</table>
<br>
Show: <a href="?fam={{.Family}}&b={{.Bucket}}&all=false">
{{if not .AllGT}}<u>{{end}}
Only in bucket</a>
{{if not .AllGT}}</u>{{end}}
/
<a href="?fam={{.Family}}&b={{.Bucket}}&all=true">
{{if .AllGT}}<u>{{end}}
All &ge; bucket</a>
{{if .AllGT}}</u>{{end}}
<p>
<!--------------------------------------------->
{{if .Error}}
<p class="error">Error: {{.Error}}</p>
{{end}}
<!--------------------------------------------->
{{if .BucketStr}}
<h2>{{.Family}} - {{.BucketStr}}</h2>
<table class="trace">
<thead>
<tr>
<th>Timestamp</th>
<th>Elapsed (s)</th>
<th>Message</th>
</tr>
</thead>
<tbody>
<tr>
<td>&nbsp;</td>
</tr>
{{range .Traces}}
{{template "_single.html.tmpl" .}}<p>
{{end}}
</tbody>
</table>
<p>
{{end}}
<!--------------------------------------------->
{{if .Latencies}}
<h2>{{.Family}} - latency</h2>
{{template "_latency.html.tmpl" .}}<p>
{{end}}
<!--------------------------------------------->
{{if .Trace}}
<h2>{{.Trace.Family}} - <i>{{.Trace.Title}}</i></h2>
{{template "_recursive.html.tmpl" .}}<p>
{{end}}
</body>
</html>