V2EX = way to explore
V2EX 是一个关于分享和探索的地方
现在注册
已注册用户请  登录
V2EX  ›  Vtrois  ›  全部回复第 1 页 / 共 1 页
回复总数  2
下面是使用 dsync 的返回结果
北京三区 S2:
[root@VM_37_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 98.123 s, 2.7 MB/s

real 1m38.137s
user 0m0.014s
sys 0m0.535s

北京一区 S1:
[root@VM_25_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 66.7693 s, 4.0 MB/s

real 1m6.810s
user 0m0.019s
sys 0m0.826s

香港一区 S1:
[root@VM_31_4_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 110.715 s, 2.4 MB/s

real 1m50.731s
user 0m0.018s
刚拿了几台小水管的普通云盘机器测了一下供参考。

北京三区 S2:
[root@VM_37_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.24492 s, 216 MB/s

real 0m1.247s
user 0m0.001s
sys 0m0.218s

[root@VM_37_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 0.949805 s, 283 MB/s
real 0m1.004s
user 0m0.000s
sys 0m0.242s

[root@VM_37_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 0.774501 s, 347 MB/s
real 0m0.804s
user 0m0.000s
sys 0m0.242s

北京一区 S1:
[root@VM_25_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.78932 s, 150 MB/s
real 0m1.863s
user 0m0.001s
sys 0m0.320s

[root@VM_25_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.3384 s, 201 MB/s
real 0m1.424s
user 0m0.001s
sys 0m0.368s

[root@VM_25_8_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.35347 s, 198 MB/s
real 0m1.399s
user 0m0.000s
sys 0m0.368s

香港一区 S1:
[root@VM_31_4_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 2.09602 s, 128 MB/s
real 0m2.811s
user 0m0.001s
sys 0m0.282s

[root@VM_31_4_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 2.46486 s, 109 MB/s
real 0m2.919s
user 0m0.004s
sys 0m0.290s

[root@VM_31_4_centos ~]# time dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.89162 s, 142 MB/s
real 0m3.032s
user 0m0.000s
sys 0m0.296s
关于   ·   帮助文档   ·   博客   ·   API   ·   FAQ   ·   实用小工具   ·   868 人在线   最高记录 6679   ·     Select Language
创意工作者们的社区
World is powered by solitude
VERSION: 3.9.8.5 · 10ms · UTC 21:56 · PVG 05:56 · LAX 13:56 · JFK 16:56
Developed with CodeLauncher
♥ Do have faith in what you're doing.