阿里云轻量和腾讯云轻量的 IO性能 测试对比
| 服务器 | CPU | 内存 | 硬盘 |
| 阿里云轻量服务器 | 2 | 1GB | ESSD 30GB |
| 腾讯云轻量服务器 | 1 | 2GB | SSD 50GB |
参考文档：https://www.xymww.com/a-li-qing-liang-vs-teng-xun-qing-liang-xing-neng-shi-ce.html
相关测试命令行
fio --name=randread --rw=randread --bs=4k --size=512M --numjobs=8 --iodepth=32 --runtime=30 --ioengine=libaio --direct=1 --group_reporting # 测试方式
apt install fio # debian安装fio
dd if=/dev/zero of=test bs=1M count=1024 # 磁盘IO性能测试（dd命令）
sysctl vm.swappiness=60 # 修改阿里云的swap交换内存的使用比例阿里云轻量 低配 测试记录
阿里云轻量服务器卡死原因：应用占用内存，由于阿里云内存过小，导致内存溢出占用，服务器硬盘又由于阿里云对硬盘的IO性能进行限制，导致服务器直接卡死、只能进入阿里云后台强制重启、才能启动，建议 阿里云 1G内存的服务器 swap交换内存设置为1G-1.5G。
阿里云轻量服务器 24元 配置：2核，1GB，ESSD-40GB，带宽30M
| 指标 | 阿里云轻量 低配 | 阿里云轻量 | 腾讯云轻量 |
|---|---|---|---|
| IOPS | 2361 ❌ | 3,412 ❌ | 25,300 ✅ |
| 带宽（读） | ~9.22 MiB/s ❌ | 13.3 MiB/s ❌ | 98.8 MiB/s ✅ |
| 平均延迟 | ~108.21 ms ❌ | 74.9 ms ❌ | 10.1 ms ✅ |
| p99.90 延迟 | 542 ms ❌ | 359 ms ❌ | 46.4 ms ✅ |
| p99.99 延迟 | 575 ms ❌ | 502 ms ❌ | 67.6 ms ✅ |
| 磁盘利用率 | 99.73% ⚠️ | 98.76% ⚠️ | 74.13% 👍 |
randread: (groupid=0, jobs=8): err= 0: pid=26720: Mon Dec 8 15:05:00 2025
read: IOPS=2361, BW=9445KiB/s (9672kB/s)(278MiB/30120msec)
slat (usec): min=2, max=19736, avg=70.47, stdev=742.71
clat (usec): min=1256, max=579752, avg=108207.38, stdev=46577.87
lat (usec): min=1262, max=579760, avg=108278.05, stdev=46580.97
clat percentiles (msec):
| 1.00th=[ 10], 5.00th=[ 61], 10.00th=[ 80], 20.00th=[ 91],
| 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 110], 60.00th=[ 110],
| 70.00th=[ 111], 80.00th=[ 120], 90.00th=[ 122], 95.00th=[ 161],
| 99.00th=[ 321], 99.50th=[ 409], 99.90th=[ 542], 99.95th=[ 558],
| 99.99th=[ 575]
bw ( KiB/s): min= 6304, max=28846, per=100.00%, avg=9449.43, stdev=352.77, samples=480
iops : min= 1576, max= 7210, avg=2362.33, stdev=88.17, samples=480
lat (msec) : 2=0.05%, 4=0.10%, 10=1.03%, 20=1.89%, 50=1.09%
lat (msec) : 100=27.44%, 250=66.54%, 500=1.64%, 750=0.22%
cpu : usr=0.22%, sys=0.39%, ctx=37996, majf=0, minf=351
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.2%, 32=99.7%, >=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=0.1%, 64=0.0%, >=64=0.0%
issued rwts: total=71122,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
READ: bw=9445KiB/s (9672kB/s), 9445KiB/s-9445KiB/s (9672kB/s-9672kB/s), io=278MiB (291MB), run=30120-30120msec
Disk stats (read/write):
vda: ios=71096/10, merge=29/23, ticks=7676199/670, in_queue=7676870, util=99.73% Speedtest by Ookla
Server: fdcservers.net - Hong Kong (id: 28912)
ISP: Alibaba
Idle Latency: 2.23 ms (jitter: 0.01ms, low: 2.22ms, high: 2.24ms)
Download: 10.24 Mbps (data used: 12.4 MB)
2.01 ms (jitter: 4.41ms, low: 1.78ms, high: 209.99ms)
Upload: 7.70 Mbps (data used: 12.1 MB)
2.13 ms (jitter: 3.67ms, low: 1.96ms, high: 211.33ms)
Packet Loss: 0.0%
Result URL: https://www.speedtest.net/result/c/7011de27-1863-4cb7-9e74-6598fc345f76
