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vendor: patch template init in trace pkg for performance 

Temporarily include a fork of golang/net package
that includes a performance patch. Measured performance
gain is ~60ms for every `docker run` command.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi 2016-04-07 11:00:54 -07:00
parent 1fbdd354c2
commit 07fe6947a4
4 changed files with 41 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
hack/vendor.sh
View File

@ -20,7 +20,8 @@ clone git github.com/mattn/go-sqlite3 v1.1.0
clone git github.com/mistifyio/go-zfs v2.1.1 clone git github.com/mistifyio/go-zfs v2.1.1
clone git github.com/tchap/go-patricia v2.1.0 clone git github.com/tchap/go-patricia v2.1.0
clone git github.com/vdemeester/shakers 24d7f1d6a71aa5d9cbe7390e4afb66b7eef9e1b3 clone git github.com/vdemeester/shakers 24d7f1d6a71aa5d9cbe7390e4afb66b7eef9e1b3
clone git golang.org/x/net 47990a1ba55743e6ef1affd3a14e5bac8553615d https://github.com/golang/net.git # forked golang.org/x/net package includes a patch for lazy loading trace templates
clone git golang.org/x/net 78cb2c067747f08b343f20614155233ab4ea2ad3 https://github.com/tonistiigi/net.git
clone git golang.org/x/sys eb2c74142fd19a79b3f237334c7384d5167b1b46 https://github.com/golang/sys.git clone git golang.org/x/sys eb2c74142fd19a79b3f237334c7384d5167b1b46 https://github.com/golang/sys.git
clone git github.com/docker/go-units 651fc226e7441360384da338d0fd37f2440ffbe3 clone git github.com/docker/go-units 651fc226e7441360384da338d0fd37f2440ffbe3
clone git github.com/docker/go-connections v0.2.0 clone git github.com/docker/go-connections v0.2.0

20
vendor/src/golang.org/x/net/trace/events.go vendored
View File

@ -21,11 +21,6 @@ import (
"time" "time"
) )
var eventsTmpl = template.Must(template.New("events").Funcs(template.FuncMap{
"elapsed": elapsed,
"trimSpace": strings.TrimSpace,
}).Parse(eventsHTML))
const maxEventsPerLog = 100 const maxEventsPerLog = 100
type bucket struct { type bucket struct {
@ -101,7 +96,7 @@ func RenderEvents(w http.ResponseWriter, req *http.Request, sensitive bool) {
famMu.RLock() famMu.RLock()
defer famMu.RUnlock() defer famMu.RUnlock()
if err := eventsTmpl.Execute(w, data); err != nil { if err := eventsTmpl().Execute(w, data); err != nil {
log.Printf("net/trace: Failed executing template: %v", err) log.Printf("net/trace: Failed executing template: %v", err)
} }
} }
@ -421,6 +416,19 @@ func freeEventLog(el *eventLog) {
} }
} }
var eventsTmplCache *template.Template
var eventsTmplOnce sync.Once
func eventsTmpl() *template.Template {
eventsTmplOnce.Do(func() {
eventsTmplCache = template.Must(template.New("events").Funcs(template.FuncMap{
"elapsed": elapsed,
"trimSpace": strings.TrimSpace,
}).Parse(eventsHTML))
})
return eventsTmplCache
}
const eventsHTML = ` const eventsHTML = `
<html> <html>
<head> <head>

15
vendor/src/golang.org/x/net/trace/histogram.go vendored
View File

@ -12,6 +12,7 @@ import (
"html/template" "html/template"
"log" "log"
"math" "math"
"sync"
"golang.org/x/net/internal/timeseries" "golang.org/x/net/internal/timeseries"
) )
@ -320,15 +321,20 @@ func (h *histogram) newData() *data {
func (h *histogram) html() template.HTML { func (h *histogram) html() template.HTML {
buf := new(bytes.Buffer) buf := new(bytes.Buffer)
if err := distTmpl.Execute(buf, h.newData()); err != nil { if err := distTmpl().Execute(buf, h.newData()); err != nil {
buf.Reset() buf.Reset()
log.Printf("net/trace: couldn't execute template: %v", err) log.Printf("net/trace: couldn't execute template: %v", err)
} }
return template.HTML(buf.String()) return template.HTML(buf.String())
} }
// Input: data var distTmplCache *template.Template
var distTmpl = template.Must(template.New("distTmpl").Parse(` var distTmplOnce sync.Once
func distTmpl() *template.Template {
distTmplOnce.Do(func() {
// Input: data
distTmplCache = template.Must(template.New("distTmpl").Parse(`
<table> <table>
<tr> <tr>
<td style="padding:0.25em">Count: {{.Count}}</td> <td style="padding:0.25em">Count: {{.Count}}</td>
@ -354,3 +360,6 @@ var distTmpl = template.Must(template.New("distTmpl").Parse(`
{{end}} {{end}}
</table> </table>
`)) `))
})
return distTmplCache
}

18
vendor/src/golang.org/x/net/trace/trace.go vendored
View File

@ -232,7 +232,7 @@ func Render(w io.Writer, req *http.Request, sensitive bool) {
completedMu.RLock() completedMu.RLock()
defer completedMu.RUnlock() defer completedMu.RUnlock()
if err := pageTmpl.ExecuteTemplate(w, "Page", data); err != nil { if err := pageTmpl().ExecuteTemplate(w, "Page", data); err != nil {
log.Printf("net/trace: Failed executing template: %v", err) log.Printf("net/trace: Failed executing template: %v", err)
} }
} }
@ -888,10 +888,18 @@ func elapsed(d time.Duration) string {
return string(b) return string(b)
} }
var pageTmpl = template.Must(template.New("Page").Funcs(template.FuncMap{ var pageTmplCache *template.Template
"elapsed": elapsed, var pageTmplOnce sync.Once
"add": func(a, b int) int { return a + b },
}).Parse(pageHTML)) func pageTmpl() *template.Template {
pageTmplOnce.Do(func() {
pageTmplCache = template.Must(template.New("Page").Funcs(template.FuncMap{
"elapsed": elapsed,
"add": func(a, b int) int { return a + b },
}).Parse(pageHTML))
})
return pageTmplCache
}
const pageHTML = ` const pageHTML = `
{{template "Prolog" .}} {{template "Prolog" .}}