mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-07 20:30:36 -05:00
metrics: Detect partialCached candidates
This commit adds a "cache potential" column when running `hugo --templateMetrics --templateMetricsHints`. This is only calculated when `--templateMetricsHints` is set, as these calculations has an negative effect on the other timings. This gives a value for partials only, and is a number between 0-100 that indicates if `partial` can be replaced with `partialCached`. 100 means that all execution of the same partial resulted in the same output. You should do some manual research before going "all cache".
This commit is contained in:
parent
e2e8bcbec3
commit
5800a20a25
5 changed files with 192 additions and 19 deletions
|
@ -242,6 +242,7 @@ func initHugoBuildCommonFlags(cmd *cobra.Command) {
|
|||
|
||||
cmd.Flags().BoolVar(&nitro.AnalysisOn, "stepAnalysis", false, "display memory and timing of different steps of the program")
|
||||
cmd.Flags().Bool("templateMetrics", false, "display metrics about template executions")
|
||||
cmd.Flags().Bool("templateMetricsHints", false, "calculate some improvement hints when combined with --templateMetrics")
|
||||
cmd.Flags().Bool("pluralizeListTitles", true, "pluralize titles in lists using inflect")
|
||||
cmd.Flags().Bool("preserveTaxonomyNames", false, `preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")`)
|
||||
cmd.Flags().BoolP("forceSyncStatic", "", false, "copy all files when static is changed.")
|
||||
|
@ -477,6 +478,7 @@ func (c *commandeer) initializeFlags(cmd *cobra.Command) {
|
|||
"noTimes",
|
||||
"noChmod",
|
||||
"templateMetrics",
|
||||
"templateMetricsHints",
|
||||
}
|
||||
|
||||
// Remove these in Hugo 0.23.
|
||||
|
|
2
deps/deps.go
vendored
2
deps/deps.go
vendored
|
@ -135,7 +135,7 @@ func New(cfg DepsCfg) (*Deps, error) {
|
|||
}
|
||||
|
||||
if cfg.Cfg.GetBool("templateMetrics") {
|
||||
d.Metrics = metrics.NewProvider()
|
||||
d.Metrics = metrics.NewProvider(cfg.Cfg.GetBool("templateMetricsHints"))
|
||||
}
|
||||
|
||||
return d, nil
|
||||
|
|
|
@ -17,7 +17,10 @@ package metrics
|
|||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
@ -31,21 +34,48 @@ type Provider interface {
|
|||
// WriteMetrics will write a summary of the metrics to w.
|
||||
WriteMetrics(w io.Writer)
|
||||
|
||||
// TrackValue tracks the value for diff calculations etc.
|
||||
TrackValue(key, value string)
|
||||
|
||||
// Reset clears the metric store.
|
||||
Reset()
|
||||
}
|
||||
|
||||
type diff struct {
|
||||
baseline string
|
||||
count int
|
||||
simSum int
|
||||
}
|
||||
|
||||
func (d *diff) add(v string) *diff {
|
||||
if d.baseline == "" {
|
||||
d.baseline = v
|
||||
d.count = 1
|
||||
d.simSum = 100 // If we get only one it is very cache friendly.
|
||||
return d
|
||||
}
|
||||
|
||||
d.simSum += howSimilar(v, d.baseline)
|
||||
d.count++
|
||||
|
||||
return d
|
||||
}
|
||||
|
||||
// Store provides storage for a set of metrics.
|
||||
type Store struct {
|
||||
metrics map[string][]time.Duration
|
||||
mu *sync.Mutex
|
||||
calculateHints bool
|
||||
metrics map[string][]time.Duration
|
||||
mu sync.Mutex
|
||||
diffs map[string]*diff
|
||||
diffmu sync.Mutex
|
||||
}
|
||||
|
||||
// NewProvider returns a new instance of a metric store.
|
||||
func NewProvider() Provider {
|
||||
func NewProvider(calculateHints bool) Provider {
|
||||
return &Store{
|
||||
metrics: make(map[string][]time.Duration),
|
||||
mu: &sync.Mutex{},
|
||||
calculateHints: calculateHints,
|
||||
metrics: make(map[string][]time.Duration),
|
||||
diffs: make(map[string]*diff),
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -54,6 +84,32 @@ func (s *Store) Reset() {
|
|||
s.mu.Lock()
|
||||
s.metrics = make(map[string][]time.Duration)
|
||||
s.mu.Unlock()
|
||||
s.diffmu.Lock()
|
||||
s.diffs = make(map[string]*diff)
|
||||
s.diffmu.Unlock()
|
||||
}
|
||||
|
||||
// TrackValue tracks the value for diff calculations etc.
|
||||
func (s *Store) TrackValue(key, value string) {
|
||||
if !s.calculateHints {
|
||||
return
|
||||
}
|
||||
|
||||
s.diffmu.Lock()
|
||||
var (
|
||||
d *diff
|
||||
found bool
|
||||
)
|
||||
|
||||
d, found = s.diffs[key]
|
||||
|
||||
if !found {
|
||||
d = &diff{}
|
||||
s.diffs[key] = d
|
||||
}
|
||||
|
||||
d.add(value)
|
||||
s.diffmu.Unlock()
|
||||
}
|
||||
|
||||
// MeasureSince adds a measurement for key to the metric store.
|
||||
|
@ -74,6 +130,12 @@ func (s *Store) WriteMetrics(w io.Writer) {
|
|||
var sum time.Duration
|
||||
var max time.Duration
|
||||
|
||||
diff, found := s.diffs[k]
|
||||
cacheFactor := 0
|
||||
if found {
|
||||
cacheFactor = int(math.Floor(float64(diff.simSum) / float64(diff.count)))
|
||||
}
|
||||
|
||||
for _, d := range v {
|
||||
sum += d
|
||||
if d > max {
|
||||
|
@ -83,31 +145,42 @@ func (s *Store) WriteMetrics(w io.Writer) {
|
|||
|
||||
avg := time.Duration(int(sum) / len(v))
|
||||
|
||||
results[i] = result{key: k, count: len(v), max: max, sum: sum, avg: avg}
|
||||
results[i] = result{key: k, count: len(v), max: max, sum: sum, avg: avg, cacheFactor: cacheFactor}
|
||||
i++
|
||||
}
|
||||
|
||||
s.mu.Unlock()
|
||||
|
||||
// sort and print results
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5s %s\n", "cumulative", "average", "maximum", "", "")
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5s %s\n", "duration", "duration", "duration", "count", "template")
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5s %s\n", "----------", "--------", "--------", "-----", "--------")
|
||||
if s.calculateHints {
|
||||
fmt.Fprintf(w, " %9s %13s %12s %12s %5s %s\n", "cache", "cumulative", "average", "maximum", "", "")
|
||||
fmt.Fprintf(w, " %9s %13s %12s %12s %5s %s\n", "potential", "duration", "duration", "duration", "count", "template")
|
||||
fmt.Fprintf(w, " %9s %13s %12s %12s %5s %s\n", "-----", "----------", "--------", "--------", "-----", "--------")
|
||||
} else {
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5s %s\n", "cumulative", "average", "maximum", "", "")
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5s %s\n", "duration", "duration", "duration", "count", "template")
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5s %s\n", "----------", "--------", "--------", "-----", "--------")
|
||||
|
||||
}
|
||||
|
||||
sort.Sort(bySum(results))
|
||||
for _, v := range results {
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5d %s\n", v.sum, v.avg, v.max, v.count, v.key)
|
||||
if s.calculateHints {
|
||||
fmt.Fprintf(w, " %9d %13s %12s %12s %5d %s\n", v.cacheFactor, v.sum, v.avg, v.max, v.count, v.key)
|
||||
} else {
|
||||
fmt.Fprintf(w, " %13s %12s %12s %5d %s\n", v.sum, v.avg, v.max, v.count, v.key)
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// A result represents the calculated results for a given metric.
|
||||
type result struct {
|
||||
key string
|
||||
count int
|
||||
sum time.Duration
|
||||
max time.Duration
|
||||
avg time.Duration
|
||||
key string
|
||||
count int
|
||||
cacheFactor int
|
||||
sum time.Duration
|
||||
max time.Duration
|
||||
avg time.Duration
|
||||
}
|
||||
|
||||
type bySum []result
|
||||
|
@ -115,3 +188,43 @@ type bySum []result
|
|||
func (b bySum) Len() int { return len(b) }
|
||||
func (b bySum) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
|
||||
func (b bySum) Less(i, j int) bool { return b[i].sum > b[j].sum }
|
||||
|
||||
// howSimilar is a naive diff implementation that returns
|
||||
// a number between 0-100 indicating how similar a and b are.
|
||||
// 100 is when all words in a also exists in b.
|
||||
func howSimilar(a, b string) int {
|
||||
|
||||
if a == b {
|
||||
return 100
|
||||
}
|
||||
|
||||
// Give some weight to the word positions.
|
||||
const partitionSize = 4
|
||||
|
||||
af, bf := strings.Fields(a), strings.Fields(b)
|
||||
if len(bf) > len(af) {
|
||||
af, bf = bf, af
|
||||
}
|
||||
|
||||
m1 := make(map[string]bool)
|
||||
for i, x := range bf {
|
||||
partition := partition(i, partitionSize)
|
||||
key := x + "/" + strconv.Itoa(partition)
|
||||
m1[key] = true
|
||||
}
|
||||
|
||||
common := 0
|
||||
for i, x := range af {
|
||||
partition := partition(i, partitionSize)
|
||||
key := x + "/" + strconv.Itoa(partition)
|
||||
if m1[key] {
|
||||
common++
|
||||
}
|
||||
}
|
||||
|
||||
return int(math.Floor((float64(common) / float64(len(af)) * 100)))
|
||||
}
|
||||
|
||||
func partition(d, scale int) int {
|
||||
return int(math.Floor((float64(d) / float64(scale)))) * scale
|
||||
}
|
||||
|
|
50
metrics/metrics_test.go
Normal file
50
metrics/metrics_test.go
Normal file
|
@ -0,0 +1,50 @@
|
|||
// Copyright 2017 The Hugo Authors. All rights reserved.
|
||||
//
|
||||
// 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 metrics
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
func TestSimilarPercentage(t *testing.T) {
|
||||
assert := require.New(t)
|
||||
|
||||
sentence := "this is some words about nothing, Hugo!"
|
||||
words := strings.Fields(sentence)
|
||||
for i, j := 0, len(words)-1; i < j; i, j = i+1, j-1 {
|
||||
words[i], words[j] = words[j], words[i]
|
||||
}
|
||||
sentenceReversed := strings.Join(words, " ")
|
||||
|
||||
assert.Equal(100, howSimilar("Hugo Rules", "Hugo Rules"))
|
||||
assert.Equal(50, howSimilar("Hugo Rules", "Hugo Rocks"))
|
||||
assert.Equal(66, howSimilar("The Hugo Rules", "The Hugo Rocks"))
|
||||
assert.Equal(66, howSimilar("The Hugo Rules", "The Hugo"))
|
||||
assert.Equal(66, howSimilar("The Hugo", "The Hugo Rules"))
|
||||
assert.Equal(0, howSimilar("Totally different", "Not Same"))
|
||||
assert.Equal(14, howSimilar(sentence, sentenceReversed))
|
||||
|
||||
}
|
||||
|
||||
func BenchmarkHowSimilar(b *testing.B) {
|
||||
s1 := "Hugo is cool and " + strings.Repeat("fun ", 10) + "!"
|
||||
s2 := "Hugo is cool and " + strings.Repeat("cool ", 10) + "!"
|
||||
|
||||
for i := 0; i < b.N; i++ {
|
||||
howSimilar(s1, s2)
|
||||
}
|
||||
}
|
|
@ -77,10 +77,18 @@ func (ns *Namespace) Include(name string, contextList ...interface{}) (interface
|
|||
}
|
||||
|
||||
if _, ok := templ.Template.(*texttemplate.Template); ok {
|
||||
return b.String(), nil
|
||||
s := b.String()
|
||||
if ns.deps.Metrics != nil {
|
||||
ns.deps.Metrics.TrackValue(n, s)
|
||||
}
|
||||
return s, nil
|
||||
}
|
||||
|
||||
return template.HTML(b.String()), nil
|
||||
s := b.String()
|
||||
if ns.deps.Metrics != nil {
|
||||
ns.deps.Metrics.TrackValue(n, s)
|
||||
}
|
||||
return template.HTML(s), nil
|
||||
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue