featurebase/bench/random.go
2016-11-28 15:45:17 -07:00

100 lines
2.4 KiB
Go

package bench
import (
"fmt"
"flag"
"io/ioutil"
"context"
"math/rand"
"time"
)
// RandomSetBits sets bits randomly and deterministically based on a seed.
type RandomSetBits struct {
HasClient
BaseBitmapID int64
BaseProfileID int64
BitmapIDRange int64
ProfileIDRange int64
Iterations int // number of bits that will be set
Seed int64
DB string // DB to use in pilosa.
}
func (b *RandomSetBits) Usage() string {
return `
RandomSetBits sets random bits
Usage: RandomSetBits [arguments]
The following arguments are available:
-BaseBitmapID int
bitmap id to start from
-BitmapIDRange int
number of possible bitmap ids that can be set
-BaseProfileID int
profile id num to start from
-ProfileIDRange int
number of possible profile ids that can be set
-Iterations int
number of bits to set
-Seed int
Seed for RNG
-DB string
pilosa db to use
-ClientType string
Can be 'single' (all agents hitting one host) or 'round_robin'
`[1:]
}
func (b *RandomSetBits) ConsumeFlags(args []string) ([]string, error) {
fs := flag.NewFlagSet("RandomSetBits", flag.ContinueOnError)
fs.SetOutput(ioutil.Discard)
fs.Int64Var(&b.BaseBitmapID, "BaseBitmapID", 0, "")
fs.Int64Var(&b.BitmapIDRange, "BitmapIDRange", 100000, "")
fs.Int64Var(&b.BaseProfileID, "BaseProfileID", 0, "")
fs.Int64Var(&b.ProfileIDRange, "ProfileIDRange", 100000, "")
fs.Int64Var(&b.Seed, "Seed", 1, "")
fs.IntVar(&b.Iterations, "Iterations", 100, "")
fs.StringVar(&b.DB, "DB", "benchdb", "")
fs.StringVar(&b.ClientType, "ClientType", "single", "")
if err := fs.Parse(args); err != nil {
return nil, err
}
return fs.Args(), nil
}
// Run runs the RandomSetBits benchmark
func (b *RandomSetBits) Run(agentNum int) map[string]interface{} {
src := rand.NewSource(b.Seed + int64(agentNum))
rng := rand.New(src)
results := make(map[string]interface{})
if b.cli == nil {
results["error"] = fmt.Errorf("No client set for RandomSetBits agent: %v", agentNum)
return results
}
s := NewStats()
var start time.Time
for n := 0; n < b.Iterations; n++ {
bitmapID := rng.Int63n(b.BitmapIDRange)
profID := rng.Int63n(b.ProfileIDRange)
query := fmt.Sprintf("SetBit(%d, 'frame.n', %d)", b.BaseBitmapID+bitmapID, b.BaseProfileID+profID)
start = time.Now()
b.cli.ExecuteQuery(context.TODO(), b.DB, query, true)
s.Add(time.Now().Sub(start))
}
AddToResults(s, results)
return results
}