(live) [/mnt] bash -x /root/fio.sh ++ nproc + fio --ioengine=libaio --filesize=1G --ramp_time=2s --runtime=1m --numjobs=40 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=write --blocksize=1m --iodepth=64 --readwrite=write --unlink=1 write: (g=0): rw=write, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=64 ... fio-3.41 Starting 40 processes write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) write: Laying out IO file (1 file / 1024MiB) Jobs: 38 (f=26): [W(1),f(1),W(2),f(1),W(5),f(3),W(1),f(1),_(1),W(1),f(1),W(5),f(1),W(1),E(1),W(2),f(3),W(5),f(1),W(3)][82.6%][w=1044MiB/s][w=1043 IOPS][eta 00m:04s] write: (groupid=0, jobs=40): err= 0: pid=3522: Thu Jul 30 12:43:45 2026 write: IOPS=2049, BW=2207MiB/s (2314MB/s)(34.5GiB/16019msec); 0 zone resets slat (usec): min=160, max=1336, avg=320.07, stdev=84.77 clat (msec): min=113, max=5331, avg=1187.40, stdev=588.29 lat (msec): min=113, max=5331, avg=1187.72, stdev=588.28 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 514], 10.00th=[ 592], 20.00th=[ 693], | 30.00th=[ 793], 40.00th=[ 911], 50.00th=[ 1045], 60.00th=[ 1200], | 70.00th=[ 1385], 80.00th=[ 1636], 90.00th=[ 2005], 95.00th=[ 2333], | 99.00th=[ 3004], 99.50th=[ 3272], 99.90th=[ 4077], 99.95th=[ 4329], | 99.99th=[ 4732] bw ( MiB/s): min= 678, max= 5091, per=100.00%, avg=2292.74, stdev=18.75, samples=1234 iops : min= 678, max= 5065, avg=2291.65, stdev=18.67, samples=1234 lat (msec) : 250=0.07%, 500=4.76%, 750=23.51%, 1000=22.25%, 2000=46.14% lat (msec) : >=2000=10.95% cpu : usr=0.77%, sys=1.07%, ctx=32012, majf=0, minf=1498 IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0% issued rwts: total=0,32831,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=64 Run status group 0 (all jobs): WRITE: bw=2207MiB/s (2314MB/s), 2207MiB/s-2207MiB/s (2314MB/s-2314MB/s), io=34.5GiB (37.1GB), run=16019-16019msec ++ nproc + fio --ioengine=libaio --filesize=1G --ramp_time=2s --runtime=1m --numjobs=40 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=randwrite --blocksize=4k --iodepth=256 --readwrite=randwrite --unlink=1 randwrite: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=256 ... fio-3.41 Starting 40 processes randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) randwrite: Laying out IO file (1 file / 1024MiB) Jobs: 40 (f=40): [w(40)][39.9%][w=272MiB/s][w=69.5k IOPS][eta 01m:35s] randwrite: (groupid=0, jobs=40): err= 0: pid=3723: Thu Jul 30 12:44:49 2026 write: IOPS=68.5k, BW=268MiB/s (281MB/s)(15.8GiB/60156msec); 0 zone resets slat (usec): min=3, max=615, avg=12.23, stdev= 5.66 clat (msec): min=9, max=1110, avg=149.25, stdev=115.11 lat (msec): min=9, max=1110, avg=149.26, stdev=115.11 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 29], 10.00th=[ 37], 20.00th=[ 54], | 30.00th=[ 72], 40.00th=[ 93], 50.00th=[ 117], 60.00th=[ 146], | 70.00th=[ 182], 80.00th=[ 230], 90.00th=[ 305], 95.00th=[ 380], | 99.00th=[ 535], 99.50th=[ 592], 99.90th=[ 751], 99.95th=[ 818], | 99.99th=[ 927] bw ( KiB/s): min=219384, max=298290, per=100.00%, avg=274960.29, stdev=357.67, samples=4800 iops : min=54846, max=74571, avg=68737.48, stdev=89.39, samples=4800 lat (msec) : 10=0.01%, 20=0.89%, 50=16.94%, 100=25.30%, 250=40.41% lat (msec) : 500=15.22%, 750=1.38%, 1000=0.10%, 2000=0.01% cpu : usr=1.40%, sys=2.79%, ctx=4011612, majf=0, minf=13382 IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=0,4122837,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=256 Run status group 0 (all jobs): WRITE: bw=268MiB/s (281MB/s), 268MiB/s-268MiB/s (281MB/s-281MB/s), io=15.8GiB (16.9GB), run=60156-60156msec ++ nproc + fio --ioengine=libaio --filesize=1G --ramp_time=2s --runtime=1m --numjobs=40 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=read --blocksize=1m --iodepth=64 --readwrite=read --unlink=1 read: (g=0): rw=read, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=64 ... fio-3.41 Starting 40 processes read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) read: Laying out IO file (1 file / 1024MiB) Jobs: 39 (f=14): [f(1),_(1),R(1),f(2),R(2),f(3),R(1),f(3),R(1),f(4),R(1),f(2),R(2),f(1),R(2),f(3),R(1),f(4),R(1),f(2),R(2)][83.3%][r=2414MiB/s][r=2413 IOPS][eta 00m:03s] read: (groupid=0, jobs=40): err= 0: pid=3831: Thu Jul 30 12:45:40 2026 read: IOPS=2708, BW=2918MiB/s (3060MB/s)(34.3GiB/12028msec) slat (usec): min=105, max=434, avg=172.41, stdev=33.02 clat (msec): min=207, max=3501, avg=906.10, stdev=405.29 lat (msec): min=207, max=3501, avg=906.27, stdev=405.29 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 506], 10.00th=[ 527], 20.00th=[ 558], | 30.00th=[ 600], 40.00th=[ 709], 50.00th=[ 776], 60.00th=[ 902], | 70.00th=[ 1045], 80.00th=[ 1217], 90.00th=[ 1485], 95.00th=[ 1720], | 99.00th=[ 2198], 99.50th=[ 2366], 99.90th=[ 2769], 99.95th=[ 2937], | 99.99th=[ 3138] bw ( MiB/s): min= 1746, max= 4953, per=100.00%, avg=2969.19, stdev=14.48, samples=934 iops : min= 1746, max= 4947, avg=2965.47, stdev=14.46, samples=934 lat (msec) : 250=0.02%, 500=4.60%, 750=46.00%, 1000=22.69%, 2000=32.14% lat (msec) : >=2000=2.29% cpu : usr=0.13%, sys=1.29%, ctx=31886, majf=0, minf=1499 IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0% issued rwts: total=32576,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=64 Run status group 0 (all jobs): READ: bw=2918MiB/s (3060MB/s), 2918MiB/s-2918MiB/s (3060MB/s-3060MB/s), io=34.3GiB (36.8GB), run=12028-12028msec ++ nproc + fio --ioengine=libaio --filesize=1G --ramp_time=2s --runtime=1m --numjobs=40 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=randread --blocksize=4k --iodepth=256 --readwrite=randread --unlink=1 randread: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=256 ... fio-3.41 Starting 40 processes randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) randread: Laying out IO file (1 file / 1024MiB) Jobs: 40 (f=40): [r(40)][97.1%][r=1167MiB/s][r=299k IOPS][eta 00m:01s] randread: (groupid=0, jobs=40): err= 0: pid=3977: Thu Jul 30 12:47:03 2026 read: IOPS=323k, BW=1264MiB/s (1326MB/s)(38.8GiB/31386msec) slat (nsec): min=1951, max=3871.6k, avg=13542.58, stdev=22234.78 clat (usec): min=241, max=259329, avg=31605.23, stdev=24594.92 lat (usec): min=247, max=259339, avg=31618.77, stdev=24594.91 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 66], 95.00th=[ 82], | 99.00th=[ 116], 99.50th=[ 131], 99.90th=[ 161], 99.95th=[ 171], | 99.99th=[ 197] bw ( MiB/s): min= 1022, max= 1369, per=100.00%, avg=1267.68, stdev= 1.88, samples=2480 iops : min=261843, max=350473, avg=324524.90, stdev=482.49, samples=2480 lat (usec) : 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01% lat (msec) : 2=0.01%, 4=0.31%, 10=14.47%, 20=26.40%, 50=40.40% lat (msec) : 100=16.38%, 250=2.14%, 500=0.01% cpu : usr=3.52%, sys=11.57%, ctx=9447956, majf=0, minf=8368 IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=10149787,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=256 Run status group 0 (all jobs): READ: bw=1264MiB/s (1326MB/s), 1264MiB/s-1264MiB/s (1326MB/s-1326MB/s), io=38.8GiB (41.6GB), run=31386-31386msec + fio --ioengine=libaio --filesize=16G --ramp_time=2s --runtime=1m --numjobs=1 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=write --blocksize=1m --iodepth=1 --readwrite=write --unlink=1 write: (g=0): rw=write, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=1 fio-3.41 Starting 1 process write: Laying out IO file (1 file / 16384MiB) Jobs: 1 (f=1): [W(1)][95.5%][w=365MiB/s][w=365 IOPS][eta 00m:02s] write: (groupid=0, jobs=1): err= 0: pid=4067: Thu Jul 30 12:47:46 2026 write: IOPS=391, BW=392MiB/s (411MB/s)(15.3GiB/39887msec); 0 zone resets slat (usec): min=76, max=555, avg=214.83, stdev=25.96 clat (usec): min=1768, max=49009, avg=2328.65, stdev=1589.87 lat (usec): min=1959, max=49256, avg=2543.48, stdev=1590.77 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 2040], 10.00th=[ 2073], 20.00th=[ 2114], | 30.00th=[ 2147], 40.00th=[ 2180], 50.00th=[ 2180], 60.00th=[ 2245], | 70.00th=[ 2278], 80.00th=[ 2311], 90.00th=[ 2376], 95.00th=[ 2474], | 99.00th=[ 3884], 99.50th=[ 6325], 99.90th=[33162], 99.95th=[43254], | 99.99th=[47449] bw ( KiB/s): min=342016, max=439150, per=100.00%, avg=402277.28, stdev=21089.90, samples=79 iops : min= 334, max= 428, avg=392.71, stdev=20.57, samples=79 lat (msec) : 2=1.27%, 4=97.81%, 10=0.56%, 20=0.16%, 50=0.20% cpu : usr=2.04%, sys=7.89%, ctx=15632, majf=0, minf=39 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=0,15630,0,0 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=392MiB/s (411MB/s), 392MiB/s-392MiB/s (411MB/s-411MB/s), io=15.3GiB (16.4GB), run=39887-39887msec + fio --ioengine=libaio --filesize=16G --ramp_time=2s --runtime=1m --numjobs=1 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=randwrite --blocksize=4k --iodepth=1 --readwrite=randwrite --unlink=1 randwrite: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=1 fio-3.41 Starting 1 process randwrite: Laying out IO file (1 file / 16384MiB) Jobs: 1 (f=1): [w(1)][100.0%][w=7735KiB/s][w=1933 IOPS][eta 00m:00s] randwrite: (groupid=0, jobs=1): err= 0: pid=4112: Thu Jul 30 12:48:48 2026 write: IOPS=1921, BW=7685KiB/s (7869kB/s)(450MiB/60001msec); 0 zone resets slat (usec): min=7, max=247, avg=32.25, stdev= 7.22 clat (usec): min=196, max=47035, avg=479.25, stdev=402.33 lat (usec): min=250, max=47071, avg=511.50, stdev=402.66 clat percentiles (usec): | 1.00th=[ 289], 5.00th=[ 343], 10.00th=[ 371], 20.00th=[ 412], | 30.00th=[ 437], 40.00th=[ 453], 50.00th=[ 474], 60.00th=[ 490], | 70.00th=[ 510], 80.00th=[ 537], 90.00th=[ 570], 95.00th=[ 594], | 99.00th=[ 668], 99.50th=[ 775], 99.90th=[ 1123], 99.95th=[ 1680], | 99.99th=[18744] bw ( KiB/s): min= 5563, max= 8216, per=100.00%, avg=7686.86, stdev=389.62, samples=120 iops : min= 1390, max= 2054, avg=1921.63, stdev=97.44, samples=120 lat (usec) : 250=0.03%, 500=64.86%, 750=34.54%, 1000=0.41% lat (msec) : 2=0.11%, 4=0.01%, 10=0.01%, 20=0.02%, 50=0.01% cpu : usr=3.93%, sys=9.48%, ctx=115274, majf=0, minf=40 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=0,115272,0,0 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=7685KiB/s (7869kB/s), 7685KiB/s-7685KiB/s (7869kB/s-7869kB/s), io=450MiB (472MB), run=60001-60001msec + fio --ioengine=libaio --filesize=16G --ramp_time=2s --runtime=1m --numjobs=1 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=read --blocksize=1m --iodepth=1 --readwrite=read --unlink=1 read: (g=0): rw=read, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=1 fio-3.41 Starting 1 process read: Laying out IO file (1 file / 16384MiB) Jobs: 1 (f=1): [R(1)][94.7%][r=435MiB/s][r=435 IOPS][eta 00m:02s] read: (groupid=0, jobs=1): err= 0: pid=4156: Thu Jul 30 12:49:35 2026 read: IOPS=462, BW=462MiB/s (485MB/s)(15.1GiB/33429msec) slat (usec): min=65, max=392, avg=192.78, stdev=35.33 clat (usec): min=1289, max=46057, avg=1963.04, stdev=638.04 lat (usec): min=1485, max=46283, avg=2155.82, stdev=641.08 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1582], 10.00th=[ 1631], 20.00th=[ 1680], | 30.00th=[ 1729], 40.00th=[ 1827], 50.00th=[ 2057], 60.00th=[ 2114], | 70.00th=[ 2147], 80.00th=[ 2180], 90.00th=[ 2212], 95.00th=[ 2278], | 99.00th=[ 2343], 99.50th=[ 2409], 99.90th=[ 2868], 99.95th=[ 7832], | 99.99th=[36963] bw ( KiB/s): min=405504, max=563200, per=100.00%, avg=473726.85, stdev=51771.72, samples=66 iops : min= 396, max= 550, avg=462.52, stdev=50.61, samples=66 lat (msec) : 2=43.68%, 4=56.26%, 10=0.01%, 20=0.02%, 50=0.03% cpu : usr=0.63%, sys=10.07%, ctx=15451, majf=0, minf=39 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=15447,0,0,0 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=462MiB/s (485MB/s), 462MiB/s-462MiB/s (485MB/s-485MB/s), io=15.1GiB (16.2GB), run=33429-33429msec + fio --ioengine=libaio --filesize=16G --ramp_time=2s --runtime=1m --numjobs=1 --direct=1 --verify=0 --randrepeat=0 --group_reporting --directory=/mnt --name=randread --blocksize=4k --iodepth=1 --readwrite=randread --unlink=1 randread: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=1 fio-3.41 Starting 1 process randread: Laying out IO file (1 file / 16384MiB) Jobs: 1 (f=1): [r(1)][100.0%][r=13.9MiB/s][r=3564 IOPS][eta 00m:00s] randread: (groupid=0, jobs=1): err= 0: pid=4202: Thu Jul 30 12:50:56 2026 read: IOPS=3546, BW=13.9MiB/s (14.5MB/s)(831MiB/60001msec) slat (usec): min=3, max=245, avg=18.64, stdev= 9.47 clat (usec): min=47, max=14969, avg=257.78, stdev=97.42 lat (usec): min=126, max=14983, avg=276.42, stdev=99.47 clat percentiles (usec): | 1.00th=[ 151], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 202], | 30.00th=[ 210], 40.00th=[ 221], 50.00th=[ 233], 60.00th=[ 255], | 70.00th=[ 306], 80.00th=[ 326], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 441], 99.50th=[ 465], 99.90th=[ 611], 99.95th=[ 766], | 99.99th=[ 1532] bw ( KiB/s): min=10144, max=15840, per=100.00%, avg=14190.49, stdev=1058.94, samples=120 iops : min= 2536, max= 3960, avg=3547.57, stdev=264.74, samples=120 lat (usec) : 50=0.01%, 250=56.33%, 500=43.43%, 750=0.19%, 1000=0.03% lat (msec) : 2=0.02%, 4=0.01%, 10=0.01%, 20=0.01% cpu : usr=4.46%, sys=10.19%, ctx=212801, majf=0, minf=337 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=212798,0,0,0 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=13.9MiB/s (14.5MB/s), 13.9MiB/s-13.9MiB/s (14.5MB/s-14.5MB/s), io=831MiB (872MB), run=60001-60001msec (live) [/mnt]