HDD 已死
hdd : 2T 379 ssd : 1T 598
在任何状态下都是几十倍，但是价格都很便宜。
nvme 4k randread
🤒 sudo fio /home/martins3/core/vn/docs/kernel/code/aio/4k-read.fio
[sudo] password for martins3:
trash: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=128
fio-3.33
Starting 1 process
Jobs: 1 (f=1): [r(1)][100.0%][r=3039MiB/s][r=778k IOPS][eta 00m:00s]
trash: (groupid=0, jobs=1): err= 0: pid=960477: Wed Feb 1 18:00:08 2023
read: IOPS=802k, BW=3133MiB/s (3285MB/s)(30.6GiB/10001msec)
slat (nsec): min=428, max=147498, avg=780.67, stdev=372.69
clat (usec): min=11, max=6450, avg=158.53, stdev=29.83
lat (usec): min=11, max=6451, avg=159.31, stdev=29.88
clat percentiles (usec):
| 1.00th=[ 118], 5.00th=[ 127], 10.00th=[ 137], 20.00th=[ 139],
| 30.00th=[ 151], 40.00th=[ 161], 50.00th=[ 165], 60.00th=[ 167],
| 70.00th=[ 169], 80.00th=[ 172], 90.00th=[ 176], 95.00th=[ 180],
| 99.00th=[ 194], 99.50th=[ 198], 99.90th=[ 215], 99.95th=[ 223],
| 99.99th=[ 355]
bw ( MiB/s): min= 3020, max= 3624, per=100.00%, avg=3138.85, stdev=213.14, samples=19
iops : min=773296, max=927744, avg=803546.95, stdev=54563.89, samples=19
lat (usec) : 20=0.01%, 50=0.01%, 100=0.01%, 250=99.98%, 500=0.01%
lat (usec) : 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 10=0.01%
cpu : usr=34.74%, sys=63.02%, ctx=124580, majf=0, minf=138
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
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=0.1%
issued rwts: total=8021669,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=128
Run status group 0 (all jobs):
READ: bw=3133MiB/s (3285MB/s), 3133MiB/s-3133MiB/s (3285MB/s-3285MB/s), io=30.6GiB (32.9GB), run=10001-10001msec
Disk stats (read/write):
nvme1n1: ios=7935963/0, merge=0/0, ticks=349055/0, in_queue=349055, util=98.94%
nvme 256 read
🧀 sudo fio /home/martins3/core/vn/docs/kernel/code/aio/4k-read.fio
trash: (g=0): rw=read, bs=(R) 256KiB-256KiB, (W) 256KiB-256KiB, (T) 256KiB-256KiB, ioengine=libaio, iodepth=128
fio-3.33
Starting 1 process
Jobs: 1 (f=1): [R(1)][100.0%][r=6806MiB/s][r=27.2k IOPS][eta 00m:00s]
trash: (groupid=0, jobs=1): err= 0: pid=960644: Wed Feb 1 18:00:33 2023
read: IOPS=27.2k, BW=6795MiB/s (7125MB/s)(66.4GiB/10005msec)
slat (usec): min=2, max=166, avg= 3.14, stdev= 1.06
clat (usec): min=4329, max=9334, avg=4704.77, stdev=94.96
lat (usec): min=4334, max=9337, avg=4707.91, stdev=95.30
clat percentiles (usec):
| 1.00th=[ 4686], 5.00th=[ 4686], 10.00th=[ 4686], 20.00th=[ 4686],
| 30.00th=[ 4686], 40.00th=[ 4686], 50.00th=[ 4686], 60.00th=[ 4686],
| 70.00th=[ 4686], 80.00th=[ 4686], 90.00th=[ 4686], 95.00th=[ 4686],
| 99.00th=[ 4752], 99.50th=[ 4752], 99.90th=[ 6325], 99.95th=[ 7111],
| 99.99th=[ 8356]
bw ( MiB/s): min= 6728, max= 6810, per=100.00%, avg=6795.17, stdev=23.07, samples=20
iops : min=26912, max=27240, avg=27180.70, stdev=92.25, samples=20
lat (msec) : 10=100.00%
cpu : usr=1.05%, sys=11.19%, ctx=271919, majf=0, minf=8202
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
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=0.1%
issued rwts: total=271934,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=128
Run status group 0 (all jobs):
READ: bw=6795MiB/s (7125MB/s), 6795MiB/s-6795MiB/s (7125MB/s-7125MB/s), io=66.4GiB (71.3GB), run=10005-10005msec
Disk stats (read/write):
nvme1n1: ios=269008/0, merge=0/0, ticks=1265202/0, in_queue=1265201, util=99.05%
hdd 256 read
🤒 sudo fio /home/martins3/core/vn/docs/kernel/code/aio/4k-read.fio
trash: (g=0): rw=read, bs=(R) 256KiB-256KiB, (W) 256KiB-256KiB, (T) 256KiB-256KiB, ioengine=libaio, iodepth=128
fio-3.33
Starting 1 process
Jobs: 1 (f=1): [R(1)][100.0%][r=225MiB/s][r=900 IOPS][eta 00m:00s]
trash: (groupid=0, jobs=1): err= 0: pid=961821: Wed Feb 1 18:02:22 2023
read: IOPS=854, BW=214MiB/s (224MB/s)(2167MiB/10151msec)
slat (usec): min=2, max=392528, avg=92.12, stdev=4403.49
clat (msec): min=114, max=587, avg=148.78, stdev=44.83
lat (msec): min=114, max=590, avg=148.87, stdev=45.08
clat percentiles (msec):
| 1.00th=[ 131], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142],
| 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 142],
| 70.00th=[ 142], 80.00th=[ 144], 90.00th=[ 148], 95.00th=[ 153],
| 99.00th=[ 506], 99.50th=[ 542], 99.90th=[ 575], 99.95th=[ 584],
| 99.99th=[ 592]
bw ( KiB/s): min= 6144, max=232960, per=100.00%, avg=218675.20, stdev=50052.91, samples=20
iops : min= 24, max= 910, avg=854.20, stdev=195.52, samples=20
lat (msec) : 250=98.34%, 500=0.57%, 750=1.10%
cpu : usr=0.02%, sys=0.39%, ctx=7315, majf=0, minf=8202
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.2%, 32=0.4%, >=64=99.3%
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=0.1%
issued rwts: total=8669,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=128
Run status group 0 (all jobs):
READ: bw=214MiB/s (224MB/s), 214MiB/s-214MiB/s (224MB/s-224MB/s), io=2167MiB (2273MB), run=10151-10151msec
Disk stats (read/write):
sda: ios=4349/0, merge=4318/0, ticks=641120/0, in_queue=641120, util=99.06%
hdd 4k randread
🧀 sudo fio /home/martins3/core/vn/docs/kernel/code/aio/4k-read.fio
trash: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=128
fio-3.33
Starting 1 process
Jobs: 1 (f=1): [r(1)][100.0%][r=7584KiB/s][r=1896 IOPS][eta 00m:00s]
trash: (groupid=0, jobs=1): err= 0: pid=962514: Wed Feb 1 18:03:41 2023
read: IOPS=1895, BW=7582KiB/s (7764kB/s)(74.6MiB/10076msec)
slat (nsec): min=1224, max=37451k, avg=523051.98, stdev=1486974.92
clat (msec): min=42, max=2079, avg=66.88, stdev=28.96
lat (msec): min=42, max=2083, avg=67.40, stdev=29.01
clat percentiles (msec):
| 1.00th=[ 48], 5.00th=[ 52], 10.00th=[ 53], 20.00th=[ 57],
| 30.00th=[ 60], 40.00th=[ 62], 50.00th=[ 65], 60.00th=[ 68],
| 70.00th=[ 71], 80.00th=[ 74], 90.00th=[ 81], 95.00th=[ 88],
| 99.00th=[ 116], 99.50th=[ 128], 99.90th=[ 176], 99.95th=[ 203],
| 99.99th=[ 2056]
bw ( KiB/s): min= 6848, max= 7936, per=100.00%, avg=7588.80, stdev=308.70, samples=20
iops : min= 1712, max= 1984, avg=1897.20, stdev=77.17, samples=20
lat (msec) : 50=1.97%, 100=95.75%, 250=2.24%, 500=0.01%, 750=0.01%
lat (msec) : 1000=0.01%, 2000=0.01%, >=2000=0.01%
cpu : usr=0.08%, sys=0.26%, ctx=21525, majf=0, minf=138
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.2%, >=64=99.7%
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=0.1%
issued rwts: total=19099,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=128
Run status group 0 (all jobs):
READ: bw=7582KiB/s (7764kB/s), 7582KiB/s-7582KiB/s (7764kB/s-7764kB/s), io=74.6MiB (78.2MB), run=10076-10076msec
Disk stats (read/write):
sda: ios=18812/0, merge=0/0, ticks=594244/0, in_queue=594244, util=98.86%
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