ceph-gobench/ceph-gobench.go

96 lines
2.5 KiB
Go

package main
import (
"fmt"
"log"
"math/rand"
"sync"
"time"
)
//future feature
func makeoffsets(threads int64, bs int64, objsize int64) [][]int64 {
var offsets [][]int64
for i := int64(0); i < threads; i++ {
s1 := rand.NewSource(i)
r1 := rand.New(s1)
localoffsets := make([]int64, 0, objsize-bs)
for i := int64(0); i < objsize-bs; i += bs {
localoffsets = append(localoffsets, i)
}
r1.Shuffle(len(localoffsets), func(i, j int) {
localoffsets[i], localoffsets[j] = localoffsets[j], localoffsets[i]
})
offsets = append(offsets, localoffsets)
}
return offsets
}
func bench(cephconn *Cephconnection, osddevice Device, buffs *[][]byte, offset [][]int64, params *Params,
wg *sync.WaitGroup, result chan []string) {
defer wg.Done()
threadresult := make(chan string, params.threadsCount)
var osdresults []string
for i := int64(0); i < params.threadsCount; i++ {
go bench_thread(cephconn, osddevice, buffs, offset[i], params, threadresult, i)
}
for i := int64(0); i < params.threadsCount; i++ {
osdresults = append(osdresults, <-threadresult)
}
close(threadresult)
result <- osdresults
}
func bench_thread(cephconn *Cephconnection, osddevice Device, buffs *[][]byte, offset []int64, params *Params,
result chan string, threadnum int64) {
time.Sleep(time.Second * time.Duration(1)) // prepare objects
result <- fmt.Sprintf("Host: %v Osdname: %v Threadnum: %v", osddevice.Info.Hostname, osddevice.Name, threadnum)
}
func main() {
params := Route()
cephconn := connectioninit(params)
defer cephconn.conn.Shutdown()
// https://tracker.ceph.com/issues/24114
time.Sleep(time.Millisecond * 100)
var buffs [][]byte
for i := int64(0); i < 2*params.threadsCount; i++ {
buffs = append(buffs, make([]byte, params.blocksize))
}
for num := range buffs {
_, err := rand.Read(buffs[num])
if err != nil {
log.Fatalln(err)
}
}
osddevices := GetOsds(cephconn, params)
offsets := makeoffsets(params.threadsCount, params.blocksize, params.objectsize)
var wg sync.WaitGroup
results := make(chan []string, len(osddevices)*int(params.threadsCount))
for _, osd := range osddevices {
wg.Add(1)
if params.parallel == true {
go bench(cephconn, osd, &buffs, offsets, &params, &wg, results)
} else {
bench(cephconn, osd, &buffs, offsets, &params, &wg, results)
log.Printf("%v \n", <-results)
}
}
if params.parallel == true {
go func() {
wg.Wait()
close(results)
}()
for message := range results {
log.Printf("%v \n", message)
}
}
}