阿里云轻量应用服务器与ECS服务器性能对比,我们选择阿里云同一地域、同一型号的轻量服务器和ECS服务器作对比。

轻量服务器与ECS所选配置:1核心、1G内存、20G SSD硬盘。性能对比数据如下所示

CPU性能对比:

轻量服务器CPU性能测试:

阿里云轻量应用服务器与ECS服务器性能对比-阿里云轻量应用服务器

轻量应用服务器CPU性能测试


ECS服务器CPU性能测试:
阿里云轻量应用服务器与ECS服务器性能对比-阿里云轻量应用服务器

ECS服务器cpu性能测试


根据上面的对比可以发现,轻量应用服务器 的性能和 ECS 并没有差距,大家都是新一代的 Xeon CPU,同样的虚拟化技术。只不过轻量应用服务器不可以持续高负载占用。

磁盘性能对比:

轻量应用服务器磁盘性能跑分:
/dev/vda:
Timing cached reads: 21070 MB in 2.00 seconds = 10549.25 MB/sec
Timing buffered disk reads: 270 MB in 3.01 seconds = 89.76 MB/sec
[root@izbp1auqkyqtj4iozs7athz dev]# fio --bs=4k --ioengine=libaio --iodepth=1 --direct=1 --rw=read --time_based --runtime=600 --refill_buffers --norandommap --randrepeat=0 --group_reporting --name=fio-read --size=10G --filename=/dev/vda
fio-read: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=1
fio-2.2.8
Starting 1 process
Jobs: 1 (f=1): [R(1)] [100.0% done] [7200KB/0KB/0KB /s] [1800/0/0 iops] [eta 00m:00s]
fio-read: (groupid=0, jobs=1): err= 0: pid=24361: Sun Sep 10 15:04:27 2017
read : io=4206.7MB, bw=7179.3KB/s, iops=1794, runt=600004msec
slat (usec): min=3, max=165, avg= 6.78, stdev= 2.02
clat (usec): min=2, max=84748, avg=548.56, stdev=2727.93
lat (usec): min=131, max=84755, avg=555.59, stdev=2727.93
clat percentiles (usec):
| 1.00th=[ 141], 5.00th=[ 241], 10.00th=[ 302], 20.00th=[ 306],
| 30.00th=[ 314], 40.00th=[ 322], 50.00th=[ 334], 60.00th=[ 350],
| 70.00th=[ 362], 80.00th=[ 382], 90.00th=[ 442], 95.00th=[ 502],
| 99.00th=[ 1012], 99.50th=[23936], 99.90th=[40704], 99.95th=[42752],
| 99.99th=[68096]
bw (KB /s): min= 4624, max= 7784, per=100.00%, avg=7182.85, stdev=181.15
lat (usec) : 4=0.01%, 250=6.25%, 500=88.69%, 750=3.79%, 1000=0.27%
lat (msec) : 2=0.36%, 4=0.06%, 10=0.03%, 20=0.04%, 50=0.48%
lat (msec) : 100=0.04%
cpu : usr=0.50%, sys=1.81%, ctx=1076903, majf=1, minf=33
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=1076894/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: io=4206.7MB, aggrb=7179KB/s, minb=7179KB/s, maxb=7179KB/s, mint=600004msec, maxt=600004msec
Disk stats (read/write):
vda: ios=1078167/690, merge=0/399, ticks=598805/4230, in_queue=602927, util=98.01%

ECS服务器磁盘性能跑分:
/dev/vdb:
Timing cached reads: 19778 MB in 2.00 seconds = 9901.01 MB/sec
Timing buffered disk reads: 270 MB in 3.02 seconds = 89.54 MB/sec
[root@iZbp1258gr0v9v184jdqqkZ dev]# fio --bs=4k --ioengine=libaio --iodepth=1 --direct=1 --rw=read --time_based --runtime=600 --refill_buffers --norandommap --randrepeat=0 --group_reporting --name=fio-read --size=10G --filename=/dev/vdb
fio-read: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=1
fio-2.2.8
Starting 1 process
Jobs: 1 (f=1): [R(1)] [100.0% done] [6940KB/0KB/0KB /s] [1735/0/0 iops] [eta 00m:00s]
fio-read: (groupid=0, jobs=1): err= 0: pid=9552: Sun Sep 10 15:23:44 2017
read : io=4218.9MB, bw=7200.2KB/s, iops=1800, runt=600001msec
slat (usec): min=3, max=344, avg= 6.97, stdev= 2.32
clat (usec): min=1, max=85711, avg=546.79, stdev=4741.30
lat (usec): min=145, max=85717, avg=553.99, stdev=4741.28
clat percentiles (usec):
| 1.00th=[ 147], 5.00th=[ 149], 10.00th=[ 151], 20.00th=[ 153],
| 30.00th=[ 155], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 199],
| 70.00th=[ 229], 80.00th=[ 241], 90.00th=[ 249], 95.00th=[ 270],
| 99.00th=[ 374], 99.50th=[56576], 99.90th=[67072], 99.95th=[67072],
| 99.99th=[67072]
bw (KB /s): min= 6380, max= 7624, per=100.00%, avg=7202.00, stdev=111.69
lat (usec) : 2=0.01%, 50=0.01%, 250=90.56%, 500=8.76%, 750=0.06%
lat (usec) : 1000=0.02%
lat (msec) : 2=0.02%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
lat (msec) : 100=0.55%
cpu : usr=0.50%, sys=1.98%, ctx=1080029, majf=0, minf=34
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=1080027/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: io=4218.9MB, aggrb=7200KB/s, minb=7200KB/s, maxb=7200KB/s, mint=600001msec, maxt=600001msec
Disk stats (read/write):
vdb: ios=1079640/0, merge=0/0, ticks=589523/0, in_queue=589382, util=98.27%

轻量应用服务器的20G SSD系统盘和ECS的20G SSD云盘的性能都是一致的,都是1800的iops,也都是90M左右的读写没有差距。

综上,阿里云轻量应用服务器和ECS服务器的CPU性能及磁盘性能都是差不多的,只是轻量应用服务器无法进行持续的高负载运行,CPU不能做长时间的高负载占用。所以,如果我们想用轻量服务器来进行持续的渲染、转码、机器学习等持续高负载操作就显得杯水车薪了,轻量服务器也不支持 Nvme 这样的超高性能的 SSD。

轻量服务器适用于初级建站的用户,使用轻量服务器对技术要就较低,阿里云提供从域名、网站、安全、运维、应用管理等一站式图形化界面,降低了用户使用云计算的门槛。

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