| Random write | Random Read | |||
|---|---|---|---|---|
| RAIDZ1 (LZ) | 82.5MiB/s-82.5MiB/s | 99.2MiB/s-99.2MiB/s | ||
Tech details
root@truenas:/mnt/pool/shared/user# sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --name=test --filename=test --bs=4k --size=4G --readwrite=randwrite --ramp_time=4
test: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=1
fio-3.33
Starting 1 process
test: Laying out IO file (1 file / 4096MiB)
Jobs: 1 (f=0): [f(1)][100.0%][w=147MiB/s][w=37.6k IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=41307: Thu Apr 10 12:49:43 2025
write: IOPS=21.1k, BW=82.5MiB/s (86.5MB/s)(3672MiB/44503msec); 0 zone resets
slat (usec): min=4, max=80062, avg=45.37, stdev=167.42
clat (nsec): min=614, max=4072.6k, avg=1133.86, stdev=6985.89
lat (usec): min=5, max=80072, avg=46.50, stdev=167.70
clat percentiles (nsec):
| 1.00th=[ 740], 5.00th=[ 836], 10.00th=[ 884], 20.00th=[ 924],
| 30.00th=[ 956], 40.00th=[ 972], 50.00th=[ 996], 60.00th=[ 1020],
| 70.00th=[ 1048], 80.00th=[ 1080], 90.00th=[ 1192], 95.00th=[ 1384],
| 99.00th=[ 2008], 99.50th=[ 3312], 99.90th=[24704], 99.95th=[41728],
| 99.99th=[72192]
bw ( KiB/s): min=48766, max=137119, per=98.81%, avg=83487.14, stdev=11581.15, samples=87
iops : min=12191, max=34279, avg=20872.08, stdev=2895.09, samples=87
lat (nsec) : 750=1.20%, 1000=50.42%
lat (usec) : 2=47.36%, 4=0.59%, 10=0.14%, 20=0.16%, 50=0.10%
lat (usec) : 100=0.02%, 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=3.69%, sys=85.07%, ctx=107206, majf=0, minf=37
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 rwts: total=0,940003,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: bw=82.5MiB/s (86.5MB/s), 82.5MiB/s-82.5MiB/s (86.5MB/s-86.5MB/s), io=3672MiB (3850MB), run=44503-44503msec
root@truenas:/mnt/pool/shared/user# sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --name=test --filename=test --bs=4k --size=4G --readwrite=randread --ramp_time=4
test: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=1
fio-3.33
Starting 1 process
Jobs: 1 (f=1): [r(1)][91.3%][r=160MiB/s][r=41.0k IOPS][eta 00m:04s]
test: (groupid=0, jobs=1): err= 0: pid=41962: Thu Apr 10 12:50:58 2025
read: IOPS=25.4k, BW=99.2MiB/s (104MB/s)(3708MiB/37391msec)
slat (usec): min=2, max=467, avg=38.12, stdev=11.50
clat (nsec): min=587, max=54938, avg=738.69, stdev=251.78
lat (usec): min=3, max=470, avg=38.86, stdev=11.53
clat percentiles (nsec):
| 1.00th=[ 636], 5.00th=[ 668], 10.00th=[ 684], 20.00th=[ 692],
| 30.00th=[ 700], 40.00th=[ 708], 50.00th=[ 716], 60.00th=[ 724],
| 70.00th=[ 740], 80.00th=[ 756], 90.00th=[ 804], 95.00th=[ 876],
| 99.00th=[ 1012], 99.50th=[ 1096], 99.90th=[ 2416], 99.95th=[ 3056],
| 99.99th=[14144]
bw ( KiB/s): min=91048, max=157648, per=98.65%, avg=100191.19, stdev=8691.21, samples=74
iops : min=22762, max=39412, avg=25047.76, stdev=2172.79, samples=74
lat (nsec) : 750=76.93%, 1000=21.93%
lat (usec) : 2=1.03%, 4=0.08%, 10=0.01%, 20=0.01%, 50=0.01%
lat (usec) : 100=0.01%
cpu : usr=2.95%, sys=96.97%, ctx=420, majf=0, minf=37
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 rwts: total=949364,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: bw=99.2MiB/s (104MB/s), 99.2MiB/s-99.2MiB/s (104MB/s-104MB/s), io=3708MiB (3889MB), run=37391-37391msec
