goroutine vs python gevent #19
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python代码使用gevent运行。 from gevent import monkey; monkey.patch_all()
import gevent
def f(i):
sum = 0
for i in range(1000000000):
x = i
x += 1
x *= 2
x /= 3
x -= 5
sum += x
print sum
gevent.joinall([
gevent.spawn(f, 1),
gevent.spawn(f, 2),
gevent.spawn(f, 3),
])# time python ./gevent_demo.py
333328333333
333328333333
333328333333
real 0m0.592s
user 0m0.450s
sys 0m0.040s |
go代码package main
import (
"log"
"sync"
)
func f() {
sum := 0
for i := 0; i < 1000000000; i++ {
x := i
x += 1
x *= 2
x /= 3
x -= 5
sum += x
}
log.Printf("sum=%d", sum)
}
func main() {
wg := new(sync.WaitGroup)
wg.Add(3)
for i := 0; i < 3; i++ {
go func() {
f()
wg.Done()
}()
}
wg.Wait()
}运行 # go build ./goroutine_demo.go
# time ./goroutine_demo
2020/10/27 16:36:32 sum=333333328333333333
2020/10/27 16:36:32 sum=333333328333333333
2020/10/27 16:36:32 sum=333333328333333333
real 0m1.036s
user 0m3.082s
sys 0m0.008s |
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最近在接触python2.7版本中的gevent多线程，所以就想记录gevent多线程模型的性能和Golang goroutine性能之间的区别。
希望能达成的目标：
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