mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
603 lines
16 KiB
Go
603 lines
16 KiB
Go
package command
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import (
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"bufio"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/pb"
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"io"
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"math"
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"math/rand"
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"os"
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"runtime"
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"runtime/pprof"
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"sort"
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"sync"
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"time"
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"google.golang.org/grpc"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/security"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/chrislusf/seaweedfs/weed/wdclient"
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)
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type BenchmarkOptions struct {
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masters *string
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concurrency *int
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numberOfFiles *int
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fileSize *int
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idListFile *string
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write *bool
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deletePercentage *int
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read *bool
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sequentialRead *bool
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collection *string
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replication *string
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diskType *string
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cpuprofile *string
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maxCpu *int
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grpcDialOption grpc.DialOption
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masterClient *wdclient.MasterClient
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fsync *bool
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useTcp *bool
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}
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var (
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b BenchmarkOptions
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sharedBytes []byte
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isSecure bool
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)
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func init() {
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cmdBenchmark.Run = runBenchmark // break init cycle
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cmdBenchmark.IsDebug = cmdBenchmark.Flag.Bool("debug", false, "verbose debug information")
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b.masters = cmdBenchmark.Flag.String("master", "localhost:9333", "SeaweedFS master location")
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b.concurrency = cmdBenchmark.Flag.Int("c", 16, "number of concurrent write or read processes")
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b.fileSize = cmdBenchmark.Flag.Int("size", 1024, "simulated file size in bytes, with random(0~63) bytes padding")
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b.numberOfFiles = cmdBenchmark.Flag.Int("n", 1024*1024, "number of files to write for each thread")
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b.idListFile = cmdBenchmark.Flag.String("list", os.TempDir()+"/benchmark_list.txt", "list of uploaded file ids")
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b.write = cmdBenchmark.Flag.Bool("write", true, "enable write")
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b.deletePercentage = cmdBenchmark.Flag.Int("deletePercent", 0, "the percent of writes that are deletes")
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b.read = cmdBenchmark.Flag.Bool("read", true, "enable read")
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b.sequentialRead = cmdBenchmark.Flag.Bool("readSequentially", false, "randomly read by ids from \"-list\" specified file")
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b.collection = cmdBenchmark.Flag.String("collection", "benchmark", "write data to this collection")
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b.replication = cmdBenchmark.Flag.String("replication", "000", "replication type")
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b.diskType = cmdBenchmark.Flag.String("disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
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b.cpuprofile = cmdBenchmark.Flag.String("cpuprofile", "", "cpu profile output file")
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b.maxCpu = cmdBenchmark.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
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b.fsync = cmdBenchmark.Flag.Bool("fsync", false, "flush data to disk after write")
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b.useTcp = cmdBenchmark.Flag.Bool("useTcp", false, "send data via tcp")
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sharedBytes = make([]byte, 1024)
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}
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var cmdBenchmark = &Command{
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UsageLine: "benchmark -master=localhost:9333 -c=10 -n=100000",
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Short: "benchmark by writing millions of files and reading them out",
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Long: `benchmark on an empty SeaweedFS file system.
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Two tests during benchmark:
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1) write lots of small files to the system
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2) read the files out
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The file content is mostly zeros, but no compression is done.
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You can choose to only benchmark read or write.
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During write, the list of uploaded file ids is stored in "-list" specified file.
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You can also use your own list of file ids to run read test.
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Write speed and read speed will be collected.
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The numbers are used to get a sense of the system.
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Usually your network or the hard drive is the real bottleneck.
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Another thing to watch is whether the volumes are evenly distributed
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to each volume server. Because the 7 more benchmark volumes are randomly distributed
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to servers with free slots, it's highly possible some servers have uneven amount of
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benchmark volumes. To remedy this, you can use this to grow the benchmark volumes
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before starting the benchmark command:
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http://localhost:9333/vol/grow?collection=benchmark&count=5
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After benchmarking, you can clean up the written data by deleting the benchmark collection
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http://localhost:9333/col/delete?collection=benchmark
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`,
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}
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var (
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wait sync.WaitGroup
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writeStats *stats
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readStats *stats
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)
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func runBenchmark(cmd *Command, args []string) bool {
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util.LoadConfiguration("security", false)
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b.grpcDialOption = security.LoadClientTLS(util.GetViper(), "grpc.client")
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fmt.Printf("This is SeaweedFS version %s %s %s\n", util.Version(), runtime.GOOS, runtime.GOARCH)
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if *b.maxCpu < 1 {
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*b.maxCpu = runtime.NumCPU()
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}
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runtime.GOMAXPROCS(*b.maxCpu)
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if *b.cpuprofile != "" {
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f, err := os.Create(*b.cpuprofile)
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if err != nil {
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glog.Fatal(err)
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}
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pprof.StartCPUProfile(f)
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defer pprof.StopCPUProfile()
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}
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b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "", "client", "", "", pb.ServerAddresses(*b.masters).ToAddressMap())
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go b.masterClient.KeepConnectedToMaster()
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b.masterClient.WaitUntilConnected()
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if *b.write {
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benchWrite()
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}
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if *b.read {
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benchRead()
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}
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return true
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}
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func benchWrite() {
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fileIdLineChan := make(chan string)
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finishChan := make(chan bool)
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writeStats = newStats(*b.concurrency)
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idChan := make(chan int)
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go writeFileIds(*b.idListFile, fileIdLineChan, finishChan)
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for i := 0; i < *b.concurrency; i++ {
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wait.Add(1)
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go writeFiles(idChan, fileIdLineChan, &writeStats.localStats[i])
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}
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writeStats.start = time.Now()
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writeStats.total = *b.numberOfFiles
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go writeStats.checkProgress("Writing Benchmark", finishChan)
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for i := 0; i < *b.numberOfFiles; i++ {
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idChan <- i
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}
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close(idChan)
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wait.Wait()
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writeStats.end = time.Now()
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wait.Add(2)
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finishChan <- true
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finishChan <- true
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wait.Wait()
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close(finishChan)
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writeStats.printStats()
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}
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func benchRead() {
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fileIdLineChan := make(chan string)
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finishChan := make(chan bool)
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readStats = newStats(*b.concurrency)
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go readFileIds(*b.idListFile, fileIdLineChan)
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readStats.start = time.Now()
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readStats.total = *b.numberOfFiles
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go readStats.checkProgress("Randomly Reading Benchmark", finishChan)
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for i := 0; i < *b.concurrency; i++ {
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wait.Add(1)
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go readFiles(fileIdLineChan, &readStats.localStats[i])
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}
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wait.Wait()
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wait.Add(1)
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finishChan <- true
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wait.Wait()
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close(finishChan)
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readStats.end = time.Now()
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readStats.printStats()
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}
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type delayedFile struct {
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enterTime time.Time
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fp *operation.FilePart
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}
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func writeFiles(idChan chan int, fileIdLineChan chan string, s *stat) {
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defer wait.Done()
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delayedDeleteChan := make(chan *delayedFile, 100)
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var waitForDeletions sync.WaitGroup
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for i := 0; i < 7; i++ {
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waitForDeletions.Add(1)
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go func() {
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defer waitForDeletions.Done()
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for df := range delayedDeleteChan {
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if df.enterTime.After(time.Now()) {
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time.Sleep(df.enterTime.Sub(time.Now()))
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}
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var jwtAuthorization security.EncodedJwt
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if isSecure {
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jwtAuthorization = operation.LookupJwt(b.masterClient.GetMaster(), b.grpcDialOption, df.fp.Fid)
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}
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if e := util.Delete(fmt.Sprintf("http://%s/%s", df.fp.Server, df.fp.Fid), string(jwtAuthorization)); e == nil {
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s.completed++
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} else {
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s.failed++
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}
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}
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}()
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}
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random := rand.New(rand.NewSource(time.Now().UnixNano()))
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volumeTcpClient := wdclient.NewVolumeTcpClient()
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for id := range idChan {
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start := time.Now()
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fileSize := int64(*b.fileSize + random.Intn(64))
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fp := &operation.FilePart{
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Reader: &FakeReader{id: uint64(id), size: fileSize, random: random},
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FileSize: fileSize,
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MimeType: "image/bench", // prevent gzip benchmark content
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Fsync: *b.fsync,
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}
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ar := &operation.VolumeAssignRequest{
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Count: 1,
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Collection: *b.collection,
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Replication: *b.replication,
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DiskType: *b.diskType,
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}
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if assignResult, err := operation.Assign(b.masterClient.GetMaster, b.grpcDialOption, ar); err == nil {
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fp.Server, fp.Fid, fp.Collection = assignResult.Url, assignResult.Fid, *b.collection
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if !isSecure && assignResult.Auth != "" {
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isSecure = true
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}
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if *b.useTcp {
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if uploadByTcp(volumeTcpClient, fp) {
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fileIdLineChan <- fp.Fid
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s.completed++
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s.transferred += fileSize
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} else {
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s.failed++
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}
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} else if _, err := fp.Upload(0, b.masterClient.GetMaster, false, assignResult.Auth, b.grpcDialOption); err == nil {
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if random.Intn(100) < *b.deletePercentage {
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s.total++
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delayedDeleteChan <- &delayedFile{time.Now().Add(time.Second), fp}
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} else {
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fileIdLineChan <- fp.Fid
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}
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s.completed++
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s.transferred += fileSize
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} else {
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s.failed++
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fmt.Printf("Failed to write with error:%v\n", err)
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}
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writeStats.addSample(time.Now().Sub(start))
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if *cmdBenchmark.IsDebug {
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fmt.Printf("writing %d file %s\n", id, fp.Fid)
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}
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} else {
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s.failed++
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println("writing file error:", err.Error())
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}
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}
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close(delayedDeleteChan)
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waitForDeletions.Wait()
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}
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func readFiles(fileIdLineChan chan string, s *stat) {
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defer wait.Done()
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for fid := range fileIdLineChan {
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if len(fid) == 0 {
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continue
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}
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if fid[0] == '#' {
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continue
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}
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if *cmdBenchmark.IsDebug {
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fmt.Printf("reading file %s\n", fid)
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}
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start := time.Now()
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var bytesRead int
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var err error
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urls, err := b.masterClient.LookupFileId(fid)
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if err != nil {
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s.failed++
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println("!!!! ", fid, " location not found!!!!!")
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continue
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}
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var bytes []byte
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for _, url := range urls {
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bytes, _, err = util.Get(url)
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if err == nil {
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break
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}
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}
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bytesRead = len(bytes)
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if err == nil {
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s.completed++
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s.transferred += int64(bytesRead)
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readStats.addSample(time.Now().Sub(start))
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} else {
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s.failed++
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fmt.Printf("Failed to read %s error:%v\n", fid, err)
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}
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}
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}
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func writeFileIds(fileName string, fileIdLineChan chan string, finishChan chan bool) {
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file, err := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
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if err != nil {
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glog.Fatalf("File to create file %s: %s\n", fileName, err)
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}
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defer file.Close()
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for {
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select {
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case <-finishChan:
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wait.Done()
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return
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case line := <-fileIdLineChan:
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file.Write([]byte(line))
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file.Write([]byte("\n"))
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}
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}
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}
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func uploadByTcp(volumeTcpClient *wdclient.VolumeTcpClient, fp *operation.FilePart) bool {
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err := volumeTcpClient.PutFileChunk(fp.Server, fp.Fid, uint32(fp.FileSize), fp.Reader)
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if err != nil {
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glog.Errorf("upload chunk err: %v", err)
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return false
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}
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return true
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}
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func readFileIds(fileName string, fileIdLineChan chan string) {
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file, err := os.Open(fileName) // For read access.
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if err != nil {
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glog.Fatalf("File to read file %s: %s\n", fileName, err)
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}
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defer file.Close()
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random := rand.New(rand.NewSource(time.Now().UnixNano()))
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r := bufio.NewReader(file)
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if *b.sequentialRead {
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for {
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if line, err := Readln(r); err == nil {
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fileIdLineChan <- string(line)
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} else {
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break
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}
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}
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} else {
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lines := make([]string, 0, readStats.total)
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for {
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if line, err := Readln(r); err == nil {
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lines = append(lines, string(line))
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} else {
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break
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}
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}
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if len(lines) > 0 {
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for i := 0; i < readStats.total; i++ {
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fileIdLineChan <- lines[random.Intn(len(lines))]
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}
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}
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}
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close(fileIdLineChan)
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}
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const (
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benchResolution = 10000 // 0.1 microsecond
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benchBucket = 1000000000 / benchResolution
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)
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// An efficient statics collecting and rendering
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type stats struct {
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data []int
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overflow []int
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localStats []stat
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start time.Time
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end time.Time
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total int
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}
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type stat struct {
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completed int
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failed int
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total int
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transferred int64
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}
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var percentages = []int{50, 66, 75, 80, 90, 95, 98, 99, 100}
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func newStats(n int) *stats {
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return &stats{
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data: make([]int, benchResolution),
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overflow: make([]int, 0),
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localStats: make([]stat, n),
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}
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}
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func (s *stats) addSample(d time.Duration) {
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index := int(d / benchBucket)
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if index < 0 {
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fmt.Printf("This request takes %3.1f seconds, skipping!\n", float64(index)/10000)
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} else if index < len(s.data) {
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s.data[int(d/benchBucket)]++
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} else {
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s.overflow = append(s.overflow, index)
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}
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}
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func (s *stats) checkProgress(testName string, finishChan chan bool) {
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fmt.Printf("\n------------ %s ----------\n", testName)
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ticker := time.Tick(time.Second)
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lastCompleted, lastTransferred, lastTime := 0, int64(0), time.Now()
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for {
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select {
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case <-finishChan:
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wait.Done()
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return
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case t := <-ticker:
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completed, transferred, taken, total := 0, int64(0), t.Sub(lastTime), s.total
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for _, localStat := range s.localStats {
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completed += localStat.completed
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transferred += localStat.transferred
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total += localStat.total
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}
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fmt.Printf("Completed %d of %d requests, %3.1f%% %3.1f/s %3.1fMB/s\n",
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completed, total, float64(completed)*100/float64(total),
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float64(completed-lastCompleted)*float64(int64(time.Second))/float64(int64(taken)),
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float64(transferred-lastTransferred)*float64(int64(time.Second))/float64(int64(taken))/float64(1024*1024),
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)
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lastCompleted, lastTransferred, lastTime = completed, transferred, t
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}
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}
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}
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func (s *stats) printStats() {
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completed, failed, transferred, total := 0, 0, int64(0), s.total
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for _, localStat := range s.localStats {
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completed += localStat.completed
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failed += localStat.failed
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transferred += localStat.transferred
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total += localStat.total
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}
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timeTaken := float64(int64(s.end.Sub(s.start))) / 1000000000
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fmt.Printf("\nConcurrency Level: %d\n", *b.concurrency)
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fmt.Printf("Time taken for tests: %.3f seconds\n", timeTaken)
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fmt.Printf("Completed requests: %d\n", completed)
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fmt.Printf("Failed requests: %d\n", failed)
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fmt.Printf("Total transferred: %d bytes\n", transferred)
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fmt.Printf("Requests per second: %.2f [#/sec]\n", float64(completed)/timeTaken)
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fmt.Printf("Transfer rate: %.2f [Kbytes/sec]\n", float64(transferred)/1024/timeTaken)
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n, sum := 0, 0
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min, max := 10000000, 0
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for i := 0; i < len(s.data); i++ {
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n += s.data[i]
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sum += s.data[i] * i
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if s.data[i] > 0 {
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if min > i {
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min = i
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}
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if max < i {
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max = i
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}
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}
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}
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n += len(s.overflow)
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for i := 0; i < len(s.overflow); i++ {
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sum += s.overflow[i]
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if min > s.overflow[i] {
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min = s.overflow[i]
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}
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if max < s.overflow[i] {
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max = s.overflow[i]
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}
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}
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avg := float64(sum) / float64(n)
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varianceSum := 0.0
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for i := 0; i < len(s.data); i++ {
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if s.data[i] > 0 {
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d := float64(i) - avg
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varianceSum += d * d * float64(s.data[i])
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}
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|
}
|
|
for i := 0; i < len(s.overflow); i++ {
|
|
d := float64(s.overflow[i]) - avg
|
|
varianceSum += d * d
|
|
}
|
|
std := math.Sqrt(varianceSum / float64(n))
|
|
fmt.Printf("\nConnection Times (ms)\n")
|
|
fmt.Printf(" min avg max std\n")
|
|
fmt.Printf("Total: %2.1f %3.1f %3.1f %3.1f\n", float32(min)/10, float32(avg)/10, float32(max)/10, std/10)
|
|
// printing percentiles
|
|
fmt.Printf("\nPercentage of the requests served within a certain time (ms)\n")
|
|
percentiles := make([]int, len(percentages))
|
|
for i := 0; i < len(percentages); i++ {
|
|
percentiles[i] = n * percentages[i] / 100
|
|
}
|
|
percentiles[len(percentiles)-1] = n
|
|
percentileIndex := 0
|
|
currentSum := 0
|
|
for i := 0; i < len(s.data); i++ {
|
|
currentSum += s.data[i]
|
|
if s.data[i] > 0 && percentileIndex < len(percentiles) && currentSum >= percentiles[percentileIndex] {
|
|
fmt.Printf(" %3d%% %5.1f ms\n", percentages[percentileIndex], float32(i)/10.0)
|
|
percentileIndex++
|
|
for percentileIndex < len(percentiles) && currentSum >= percentiles[percentileIndex] {
|
|
percentileIndex++
|
|
}
|
|
}
|
|
}
|
|
sort.Ints(s.overflow)
|
|
for i := 0; i < len(s.overflow); i++ {
|
|
currentSum++
|
|
if percentileIndex < len(percentiles) && currentSum >= percentiles[percentileIndex] {
|
|
fmt.Printf(" %3d%% %5.1f ms\n", percentages[percentileIndex], float32(s.overflow[i])/10.0)
|
|
percentileIndex++
|
|
for percentileIndex < len(percentiles) && currentSum >= percentiles[percentileIndex] {
|
|
percentileIndex++
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// a fake reader to generate content to upload
|
|
type FakeReader struct {
|
|
id uint64 // an id number
|
|
size int64 // max bytes
|
|
random *rand.Rand
|
|
}
|
|
|
|
func (l *FakeReader) Read(p []byte) (n int, err error) {
|
|
if l.size <= 0 {
|
|
return 0, io.EOF
|
|
}
|
|
if int64(len(p)) > l.size {
|
|
n = int(l.size)
|
|
} else {
|
|
n = len(p)
|
|
}
|
|
if n >= 8 {
|
|
for i := 0; i < 8; i++ {
|
|
p[i] = byte(l.id >> uint(i*8))
|
|
}
|
|
l.random.Read(p[8:])
|
|
}
|
|
l.size -= int64(n)
|
|
return
|
|
}
|
|
|
|
func (l *FakeReader) WriteTo(w io.Writer) (n int64, err error) {
|
|
size := int(l.size)
|
|
bufferSize := len(sharedBytes)
|
|
for size > 0 {
|
|
tempBuffer := sharedBytes
|
|
if size < bufferSize {
|
|
tempBuffer = sharedBytes[0:size]
|
|
}
|
|
count, e := w.Write(tempBuffer)
|
|
if e != nil {
|
|
return int64(size), e
|
|
}
|
|
size -= count
|
|
}
|
|
return l.size, nil
|
|
}
|
|
|
|
func Readln(r *bufio.Reader) ([]byte, error) {
|
|
var (
|
|
isPrefix = true
|
|
err error
|
|
line, ln []byte
|
|
)
|
|
for isPrefix && err == nil {
|
|
line, isPrefix, err = r.ReadLine()
|
|
ln = append(ln, line...)
|
|
}
|
|
return ln, err
|
|
}
|