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feat(replay): add latency distributions

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Tarun Pothulapati 2025-04-24 15:09:44 +05:30
parent 680722d8ff
commit da6df521c7
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GPG key ID: 82B504CB6F6C9902
4 changed files with 30 additions and 1 deletions
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1
tools/replay/go.mod
View file

@ -13,6 +13,7 @@ require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
github.com/gookit/color v1.4.2 // indirect
github.com/influxdata/tdigest v0.0.1 // indirect
github.com/mattn/go-runewidth v0.0.13 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/rivo/uniseg v0.2.0 // indirect

7
tools/replay/go.sum
View file

@ -9,8 +9,11 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/gookit/color v1.4.2 h1:tXy44JFSFkKnELV6WaMo/lLfu/meqITX3iAV52do7lk=
github.com/gookit/color v1.4.2/go.mod h1:fqRyamkC1W8uxl+lxCQxOT09l/vYfZ+QeiX3rKQHCoQ=
github.com/influxdata/tdigest v0.0.1 h1:XpFptwYmnEKUqmkcDjrzffswZ3nvNeevbUSLPP/ZzIY=
github.com/influxdata/tdigest v0.0.1/go.mod h1:Z0kXnxzbTC2qrx4NaIzYkE1k66+6oEDQTvL95hQFh5Y=
github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@ -27,11 +30,15 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778 h1:QldyIu/L63oPpyvQmHgvgickp1Yw510KJOqX7H24mg8=
github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778/go.mod h1:2MuV+tbUrU1zIOPMxZ5EncGwgmMJsa+9ucAQZXxsObs=
golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/BESIg2ze4Pgfh/aI8c=
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d h1:SZxvLBoTP5yHO3Frd4z4vrF+DBX9vMVanchswa69toE=
golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gonum.org/v1/gonum v0.0.0-20181121035319-3f7ecaa7e8ca/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
gonum.org/v1/netlib v0.0.0-20181029234149-ec6d1f5cefe6/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

12
tools/replay/main.go
View file

@ -19,14 +19,24 @@ var fPace = flag.Bool("pace", true, "whether to pace the traffic according to th
var fSkip = flag.Uint("skip", 0, "skip N records")
func RenderTable(area *pterm.AreaPrinter, files []string, workers []FileWorker) {
tableData := pterm.TableData{{"file", "parsed", "processed", "delayed", "clients"}}
tableData := pterm.TableData{{"file", "parsed", "processed", "delayed", "clients", "p50(us)", "p75(us)", "p90(us)", "p99(us)"}}
for i := range workers {
workers[i].latencyMu.Lock()
p50 := workers[i].latencyDigest.Quantile(0.5)
p75 := workers[i].latencyDigest.Quantile(0.75)
p90 := workers[i].latencyDigest.Quantile(0.9)
p99 := workers[i].latencyDigest.Quantile(0.99)
workers[i].latencyMu.Unlock()
tableData = append(tableData, []string{
files[i],
fmt.Sprint(atomic.LoadUint64(&workers[i].parsed)),
fmt.Sprint(atomic.LoadUint64(&workers[i].processed)),
fmt.Sprint(atomic.LoadUint64(&workers[i].delayed)),
fmt.Sprint(atomic.LoadUint64(&workers[i].clients)),
fmt.Sprintf("%.0f", p50),
fmt.Sprintf("%.0f", p75),
fmt.Sprintf("%.0f", p90),
fmt.Sprintf("%.0f", p99),
})
}
content, _ := pterm.DefaultTable.WithHasHeader().WithBoxed().WithData(tableData).Srender()

11
tools/replay/workers.go
View file

@ -10,6 +10,7 @@ import (
"sync/atomic"
"time"
"github.com/influxdata/tdigest"
"github.com/redis/go-redis/v9"
)
@ -56,6 +57,9 @@ type FileWorker struct {
delayed uint64
parsed uint64
clients uint64
latencyDigest *tdigest.TDigest
latencyMu sync.Mutex
}
func (c *ClientWorker) Run(pace bool, worker *FileWorker) {
@ -74,7 +78,13 @@ func (c *ClientWorker) Run(pace bool, worker *FileWorker) {
time.Sleep(lag)
}
start := time.Now()
c.pipe.Do(context.Background(), msg.values...).Result()
latency := float64(time.Since(start).Microseconds())
worker.latencyMu.Lock()
worker.latencyDigest.Add(latency, 1)
worker.latencyMu.Unlock()
atomic.AddUint64(&worker.processed, 1)
if msg.HasMore == 0 {
@ -106,6 +116,7 @@ func NewClient(w *FileWorker, pace bool) *ClientWorker {
}
func (w *FileWorker) Run(file string, wg *sync.WaitGroup) {
w.latencyDigest = tdigest.NewWithCompression(1000)
clients := make(map[uint32]*ClientWorker, 0)
recordId := uint64(0)
err := parseRecords(file, func(r Record) bool {