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楼主 |
发表于 2021-11-16 15:40:58
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挂载到2T大盘鸡的速度。估计是跑了阵列卡缓存。速度太猛了 4K 200多M
root@NVMe:/data# time dd if=/dev/zero of=test bs=1M count=500
500+0 records in
500+0 records out
524288000 bytes (524 MB, 500 MiB) copied, 1.85985 s, 282 MB/s
real 0m1.863s
user 0m0.000s
sys 0m0.355s
root@NVMe:/data# rm /test
root@NVMe:/data# time dd if=/dev/zero of=test bs=4K count=20000
20000+0 records in
20000+0 records out
81920000 bytes (82 MB, 78 MiB) copied, 0.346423 s, 236 MB/s
real 0m0.495s
user 0m0.000s
sys 0m0.106s
root@NVMe:/data# time dd if=/dev/zero of=test bs=4K count=100000
100000+0 records in
100000+0 records out
409600000 bytes (410 MB, 391 MiB) copied, 1.92306 s, 213 MB/s
real 0m1.946s
user 0m0.013s
sys 0m0.292s
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