mirror of https://github.com/tidwall/tile38.git
635 lines
20 KiB
Go
635 lines
20 KiB
Go
package main
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import (
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"fmt"
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"math"
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"math/rand"
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"net"
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"os"
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"strconv"
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"strings"
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"sync/atomic"
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"time"
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"github.com/tidwall/redbench"
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"github.com/tidwall/tile38/core"
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)
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var (
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hostname = "127.0.0.1"
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port = 9851
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clients = 50
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requests = 100000
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quiet = false
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pipeline = 1
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csv = false
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json = false
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tests = "PING,SET,GET,INTERSECTS,WITHIN,NEARBY,EVAL"
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redis = false
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)
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var addr string
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func showHelp() bool {
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gitsha := ""
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if core.GitSHA == "" || core.GitSHA == "0000000" {
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gitsha = ""
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} else {
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gitsha = " (git:" + core.GitSHA + ")"
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}
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fmt.Fprintf(os.Stdout, "tile38-benchmark %s%s\n\n", core.Version, gitsha)
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fmt.Fprintf(os.Stdout, "Usage: tile38-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests>]\n")
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fmt.Fprintf(os.Stdout, " -h <hostname> Server hostname (default: %s)\n", hostname)
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fmt.Fprintf(os.Stdout, " -p <port> Server port (default: %d)\n", port)
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fmt.Fprintf(os.Stdout, " -c <clients> Number of parallel connections (default %d)\n", clients)
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fmt.Fprintf(os.Stdout, " -n <requests> Total number or requests (default %d)\n", requests)
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fmt.Fprintf(os.Stdout, " -q Quiet. Just show query/sec values\n")
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fmt.Fprintf(os.Stdout, " -P <numreq> Pipeline <numreq> requests. Default 1 (no pipeline).\n")
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fmt.Fprintf(os.Stdout, " -t <tests> Only run the comma separated list of tests. The test\n")
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fmt.Fprintf(os.Stdout, " names are the same as the ones produced as output.\n")
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fmt.Fprintf(os.Stdout, " --csv Output in CSV format.\n")
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fmt.Fprintf(os.Stdout, " --json Request JSON responses (default is RESP output)\n")
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fmt.Fprintf(os.Stdout, " --redis Runs against a Redis server\n")
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fmt.Fprintf(os.Stdout, "\n")
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return false
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}
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func parseArgs() bool {
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defer func() {
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if v := recover(); v != nil {
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if v, ok := v.(string); ok && v == "bad arg" {
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showHelp()
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}
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}
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}()
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args := os.Args[1:]
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readArg := func(arg string) string {
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if len(args) == 0 {
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panic("bad arg")
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}
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var narg = args[0]
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args = args[1:]
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return narg
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}
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readIntArg := func(arg string) int {
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n, err := strconv.ParseUint(readArg(arg), 10, 64)
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if err != nil {
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panic("bad arg")
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}
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return int(n)
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}
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badArg := func(arg string) bool {
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fmt.Fprintf(os.Stderr, "Unrecognized option or bad number of args for: '%s'\n", arg)
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return false
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}
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for len(args) > 0 {
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arg := readArg("")
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if arg == "--help" || arg == "-?" {
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return showHelp()
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}
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if !strings.HasPrefix(arg, "-") {
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args = append([]string{arg}, args...)
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break
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}
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switch arg {
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default:
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return badArg(arg)
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case "-h":
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hostname = readArg(arg)
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case "-p":
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port = readIntArg(arg)
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case "-c":
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clients = readIntArg(arg)
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if clients <= 0 {
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clients = 1
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}
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case "-n":
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requests = readIntArg(arg)
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if requests <= 0 {
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requests = 0
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}
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case "-q":
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quiet = true
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case "-P":
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pipeline = readIntArg(arg)
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if pipeline <= 0 {
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pipeline = 1
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}
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case "-t":
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tests = readArg(arg)
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case "--csv":
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csv = true
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case "--json":
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json = true
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case "--redis":
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redis = true
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}
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}
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return true
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}
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func fillOpts() *redbench.Options {
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opts := *redbench.DefaultOptions
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opts.CSV = csv
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opts.Clients = clients
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opts.Pipeline = pipeline
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opts.Quiet = quiet
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opts.Requests = requests
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opts.Stderr = os.Stderr
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opts.Stdout = os.Stdout
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return &opts
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}
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func randPoint() (lat, lon float64) {
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return rand.Float64()*180 - 90, rand.Float64()*360 - 180
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}
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func isValidRect(minlat, minlon, maxlat, maxlon float64) bool {
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return minlat > -90 && maxlat < 90 && minlon > -180 && maxlon < 180
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}
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func randRect(meters float64) (minlat, minlon, maxlat, maxlon float64) {
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for {
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lat, lon := randPoint()
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maxlat, _ = destinationPoint(lat, lon, meters, 0)
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_, maxlon = destinationPoint(lat, lon, meters, 90)
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minlat, _ = destinationPoint(lat, lon, meters, 180)
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_, minlon = destinationPoint(lat, lon, meters, 270)
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if isValidRect(minlat, minlon, maxlat, maxlon) {
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return
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}
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}
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}
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func prepFn(conn net.Conn) bool {
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if json {
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conn.Write([]byte("output json\r\n"))
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resp := make([]byte, 100)
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conn.Read(resp)
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}
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return true
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}
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func main() {
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rand.Seed(time.Now().UnixNano())
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if !parseArgs() {
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return
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}
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opts := fillOpts()
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addr = fmt.Sprintf("%s:%d", hostname, port)
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for _, test := range strings.Split(tests, ",") {
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "PING":
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redbench.Bench("PING", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf, "PING")
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},
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)
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case "GEOADD":
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//GEOADD key longitude latitude member
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if redis {
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var i int64
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redbench.Bench("GEOADD", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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lat, lon := randPoint()
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return redbench.AppendCommand(buf, "GEOADD", "key:bench",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"id:"+strconv.FormatInt(i, 10),
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)
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},
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)
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}
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case "SET", "SET-POINT", "SET-RECT", "SET-STRING":
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if redis {
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redbench.Bench("SET", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf, "SET", "key:__rand_int__", "xxx")
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},
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)
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} else {
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var i int64
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "SET", "SET-POINT":
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redbench.Bench("SET (point)", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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lat, lon := randPoint()
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return redbench.AppendCommand(buf, "SET", "key:bench", "id:"+strconv.FormatInt(i, 10), "POINT",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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)
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "SET", "SET-RECT":
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redbench.Bench("SET (rect)", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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minlat, minlon, maxlat, maxlon := randRect(10000)
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return redbench.AppendCommand(buf, "SET", "key:bench", "id:"+strconv.FormatInt(i, 10), "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64),
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)
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "SET", "SET-STRING":
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redbench.Bench("SET (string)", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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return redbench.AppendCommand(buf, "SET", "key:bench", "id:"+strconv.FormatInt(i, 10), "STRING", "xxx")
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},
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)
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}
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}
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case "GET":
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if redis {
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redbench.Bench("GET", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf, "GET", "key:__rand_int__")
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},
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)
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} else {
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var i int64
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redbench.Bench("GET (point)", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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return redbench.AppendCommand(buf, "GET", "key:bench", "id:"+strconv.FormatInt(i, 10), "POINT")
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},
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)
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redbench.Bench("GET (rect)", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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return redbench.AppendCommand(buf, "GET", "key:bench", "id:"+strconv.FormatInt(i, 10), "BOUNDS")
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},
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)
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redbench.Bench("GET (string)", addr, opts, prepFn,
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func(buf []byte) []byte {
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i := atomic.AddInt64(&i, 1)
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return redbench.AppendCommand(buf, "GET", "key:bench", "id:"+strconv.FormatInt(i, 10), "OBJECT")
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},
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)
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}
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case "INTERSECTS",
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"INTERSECTS-RECT", "INTERSECTS-RECT-1000", "INTERSECTS-RECT-10000", "INTERSECTS-RECT-100000",
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"INTERSECTS-CIRCLE", "INTERSECTS-CIRCLE-1000", "INTERSECTS-CIRCLE-10000", "INTERSECTS-CIRCLE-100000":
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if redis {
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break
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "INTERSECTS", "INTERSECTS-CIRCLE", "INTERSECTS-CIRCLE-1000":
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redbench.Bench("INTERSECTS (intersects-circle 1km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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lat, lon := randPoint()
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return redbench.AppendCommand(buf,
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"INTERSECTS", "key:bench", "COUNT", "CIRCLE",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"1000")
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "INTERSECTS", "INTERSECTS-CIRCLE", "INTERSECTS-CIRCLE-10000":
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redbench.Bench("INTERSECTS (intersects-circle 10km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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lat, lon := randPoint()
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return redbench.AppendCommand(buf,
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"INTERSECTS", "key:bench", "COUNT", "CIRCLE",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"10000")
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "INTERSECTS", "INTERSECTS-CIRCLE", "INTERSECTS-CIRCLE-100000":
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redbench.Bench("INTERSECTS (intersects-circle 100km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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lat, lon := randPoint()
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return redbench.AppendCommand(buf,
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"INTERSECTS", "key:bench", "COUNT", "CIRCLE",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"100000")
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},
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)
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}
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// INTERSECTS-BOUNDS
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "INTERSECTS", "INTERSECTS-BOUNDS", "INTERSECTS-BOUNDS-1000":
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minlat, minlon, maxlat, maxlon := randRect(1000)
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redbench.Bench("INTERSECTS (intersects-bounds 1km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf,
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"INTERSECTS", "key:bench", "COUNT", "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64))
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "INTERSECTS", "INTERSECTS-BOUNDS", "INTERSECTS-BOUNDS-10000":
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minlat, minlon, maxlat, maxlon := randRect(10000)
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redbench.Bench("INTERSECTS (intersects-bounds 10km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf,
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"INTERSECTS", "key:bench", "COUNT", "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64))
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "INTERSECTS", "INTERSECTS-BOUNDS", "INTERSECTS-BOUNDS-100000":
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minlat, minlon, maxlat, maxlon := randRect(10000)
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redbench.Bench("INTERSECTS (intersects-bounds 100km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf,
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"INTERSECTS", "key:bench", "COUNT", "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64))
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},
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)
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}
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case "WITHIN",
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"WITHIN-RECT", "WITHIN-RECT-1000", "WITHIN-RECT-10000", "WITHIN-RECT-100000",
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"WITHIN-CIRCLE", "WITHIN-CIRCLE-1000", "WITHIN-CIRCLE-10000", "WITHIN-CIRCLE-100000":
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if redis {
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break
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "WITHIN", "WITHIN-CIRCLE", "WITHIN-CIRCLE-1000":
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redbench.Bench("WITHIN (within-circle 1km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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lat, lon := randPoint()
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return redbench.AppendCommand(buf,
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"WITHIN", "key:bench", "COUNT", "CIRCLE",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"1000")
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "WITHIN", "WITHIN-CIRCLE", "WITHIN-CIRCLE-10000":
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redbench.Bench("WITHIN (within-circle 10km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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lat, lon := randPoint()
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return redbench.AppendCommand(buf,
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"WITHIN", "key:bench", "COUNT", "CIRCLE",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"10000")
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "WITHIN", "WITHIN-CIRCLE", "WITHIN-CIRCLE-100000":
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redbench.Bench("WITHIN (within-circle 100km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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lat, lon := randPoint()
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return redbench.AppendCommand(buf,
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"WITHIN", "key:bench", "COUNT", "CIRCLE",
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strconv.FormatFloat(lat, 'f', 5, 64),
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strconv.FormatFloat(lon, 'f', 5, 64),
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"100000")
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},
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)
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}
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// WITHIN-BOUNDS
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "WITHIN", "WITHIN-BOUNDS", "WITHIN-BOUNDS-1000":
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minlat, minlon, maxlat, maxlon := randRect(1000)
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redbench.Bench("WITHIN (within-bounds 1km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf,
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"WITHIN", "key:bench", "COUNT", "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64))
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "WITHIN", "WITHIN-BOUNDS", "WITHIN-BOUNDS-10000":
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minlat, minlon, maxlat, maxlon := randRect(10000)
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redbench.Bench("WITHIN (within-bounds 10km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf,
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"WITHIN", "key:bench", "COUNT", "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64))
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},
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)
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}
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switch strings.ToUpper(strings.TrimSpace(test)) {
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case "WITHIN", "WITHIN-BOUNDS", "WITHIN-BOUNDS-100000":
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minlat, minlon, maxlat, maxlon := randRect(10000)
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redbench.Bench("WITHIN (within-bounds 100km)", addr, opts, prepFn,
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func(buf []byte) []byte {
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return redbench.AppendCommand(buf,
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"WITHIN", "key:bench", "COUNT", "BOUNDS",
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strconv.FormatFloat(minlat, 'f', 5, 64),
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strconv.FormatFloat(minlon, 'f', 5, 64),
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strconv.FormatFloat(maxlat, 'f', 5, 64),
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strconv.FormatFloat(maxlon, 'f', 5, 64))
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},
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)
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}
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case "NEARBY",
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"NEARBY-KNN", "NEARBY-KNN-1", "NEARBY-KNN-10", "NEARBY-KNN-100",
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"NEARBY-POINT", "NEARBY-POINT-1000", "NEARBY-POINT-10000", "NEARBY-POINT-100000":
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if redis {
|
|
break
|
|
}
|
|
switch strings.ToUpper(strings.TrimSpace(test)) {
|
|
case "NEARBY", "NEARBY-KNN", "NEARBY-KNN-1":
|
|
redbench.Bench("NEARBY (limit 1)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf,
|
|
"NEARBY", "key:bench", "LIMIT", "1", "COUNT", "POINT",
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
)
|
|
},
|
|
)
|
|
}
|
|
switch strings.ToUpper(strings.TrimSpace(test)) {
|
|
case "NEARBY", "NEARBY-KNN", "NEARBY-KNN-10":
|
|
redbench.Bench("NEARBY (limit 10)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf,
|
|
"NEARBY", "key:bench", "LIMIT", "10", "COUNT", "POINT",
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
)
|
|
},
|
|
)
|
|
}
|
|
switch strings.ToUpper(strings.TrimSpace(test)) {
|
|
case "NEARBY", "NEARBY-KNN", "NEARBY-KNN-100":
|
|
redbench.Bench("NEARBY (limit 100)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf,
|
|
"NEARBY", "key:bench", "LIMIT", "100", "COUNT", "POINT",
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
)
|
|
},
|
|
)
|
|
}
|
|
switch strings.ToUpper(strings.TrimSpace(test)) {
|
|
case "NEARBY", "NEARBY-POINT", "NEARBY-POINT-1000":
|
|
redbench.Bench("NEARBY (point 1km)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf,
|
|
"NEARBY", "key:bench", "COUNT", "POINT",
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
"1000",
|
|
)
|
|
},
|
|
)
|
|
}
|
|
switch strings.ToUpper(strings.TrimSpace(test)) {
|
|
case "NEARBY", "NEARBY-POINT", "NEARBY-POINT-10000":
|
|
redbench.Bench("NEARBY (point 10km)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf,
|
|
"NEARBY", "key:bench", "COUNT", "POINT",
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
"10000",
|
|
)
|
|
},
|
|
)
|
|
}
|
|
switch strings.ToUpper(strings.TrimSpace(test)) {
|
|
case "NEARBY", "NEARBY-POINT", "NEARBY-POINT-100000":
|
|
redbench.Bench("NEARBY (point 100km)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf,
|
|
"NEARBY", "key:bench", "COUNT", "POINT",
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
"100000",
|
|
)
|
|
},
|
|
)
|
|
}
|
|
case "EVAL":
|
|
if !redis {
|
|
var i int64
|
|
get_script := "return tile38.call('GET', KEYS[1], ARGV[1], 'point')"
|
|
get4_script :=
|
|
"a = tile38.call('GET', KEYS[1], ARGV[1], 'point');" +
|
|
"b = tile38.call('GET', KEYS[1], ARGV[2], 'point');" +
|
|
"c = tile38.call('GET', KEYS[1], ARGV[3], 'point');" +
|
|
"d = tile38.call('GET', KEYS[1], ARGV[4], 'point');" +
|
|
"return d"
|
|
|
|
set_script := "return tile38.call('SET', KEYS[1], ARGV[1], 'point', ARGV[2], ARGV[3])"
|
|
if !opts.Quiet {
|
|
fmt.Println("Scripts to run:")
|
|
fmt.Println("GET SCRIPT: " + get_script)
|
|
fmt.Println("GET FOUR SCRIPT: " + get4_script)
|
|
fmt.Println("SET SCRIPT: " + set_script)
|
|
}
|
|
|
|
redbench.Bench("EVAL (set point)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
i := atomic.AddInt64(&i, 1)
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf, "EVAL", set_script, "1",
|
|
"key:bench",
|
|
"id:"+strconv.FormatInt(i, 10),
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
)
|
|
},
|
|
)
|
|
redbench.Bench("EVALNA (set point)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
i := atomic.AddInt64(&i, 1)
|
|
lat, lon := randPoint()
|
|
return redbench.AppendCommand(buf, "EVALNA", set_script, "1",
|
|
"key:bench",
|
|
"id:"+strconv.FormatInt(i, 10),
|
|
strconv.FormatFloat(lat, 'f', 5, 64),
|
|
strconv.FormatFloat(lon, 'f', 5, 64),
|
|
)
|
|
},
|
|
)
|
|
redbench.Bench("EVALRO (get point)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
i := atomic.AddInt64(&i, 1)
|
|
return redbench.AppendCommand(buf, "EVALRO", get_script, "1", "key:bench", "id:"+strconv.FormatInt(i, 10))
|
|
},
|
|
)
|
|
redbench.Bench("EVALRO (get 4 points)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
i := atomic.AddInt64(&i, 1)
|
|
return redbench.AppendCommand(buf, "EVALRO", get4_script, "1",
|
|
"key:bench",
|
|
"id:"+strconv.FormatInt(i, 10),
|
|
"id:"+strconv.FormatInt(i+1, 10),
|
|
"id:"+strconv.FormatInt(i+2, 10),
|
|
"id:"+strconv.FormatInt(i+3, 10),
|
|
)
|
|
},
|
|
)
|
|
redbench.Bench("EVALNA (get point)", addr, opts, prepFn,
|
|
func(buf []byte) []byte {
|
|
i := atomic.AddInt64(&i, 1)
|
|
return redbench.AppendCommand(buf, "EVALNA", get_script, "1", "key:bench", "id:"+strconv.FormatInt(i, 10))
|
|
},
|
|
)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const earthRadius = 6371e3
|
|
|
|
func toRadians(deg float64) float64 { return deg * math.Pi / 180 }
|
|
func toDegrees(rad float64) float64 { return rad * 180 / math.Pi }
|
|
|
|
// destinationPoint return the destination from a point based on a distance and bearing.
|
|
func destinationPoint(lat, lon, meters, bearingDegrees float64) (destLat, destLon float64) {
|
|
// see http://williams.best.vwh.net/avform.htm#LL
|
|
δ := meters / earthRadius // angular distance in radians
|
|
θ := toRadians(bearingDegrees)
|
|
φ1 := toRadians(lat)
|
|
λ1 := toRadians(lon)
|
|
φ2 := math.Asin(math.Sin(φ1)*math.Cos(δ) + math.Cos(φ1)*math.Sin(δ)*math.Cos(θ))
|
|
λ2 := λ1 + math.Atan2(math.Sin(θ)*math.Sin(δ)*math.Cos(φ1), math.Cos(δ)-math.Sin(φ1)*math.Sin(φ2))
|
|
λ2 = math.Mod(λ2+3*math.Pi, 2*math.Pi) - math.Pi // normalise to -180..+180°
|
|
return toDegrees(φ2), toDegrees(λ2)
|
|
}
|