== sanity test 398c: run fio to test AIO ================= 23:02:18 (1780455738) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.42254 s, 99.3 MB/s osc.lustre-OST0000-osc-ffff89f451087000.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=182599: Tue Jun 2 23:02:55 2026 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29147msec); 0 zone resets slat (usec): min=46, max=26101, avg=332.29, stdev=954.59 clat (msec): min=30, max=353, avg=181.66, stdev=51.45 lat (msec): min=32, max=353, avg=181.99, stdev=51.44 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 109], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 187, max= 582, per=25.04%, avg=349.04, stdev=79.14, samples=57 iops : min= 46, max= 145, avg=86.89, stdev=19.87, samples=57 lat (msec) : 50=0.47%, 100=2.62%, 250=85.82%, 500=11.09% cpu : usr=0.21%, sys=1.24%, ctx=2832, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=182600: Tue Jun 2 23:02:55 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29369msec); 0 zone resets slat (usec): min=37, max=21750, avg=322.09, stdev=940.45 clat (msec): min=27, max=365, avg=182.71, stdev=50.14 lat (msec): min=30, max=365, avg=183.04, stdev=50.12 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 114], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 211, max= 512, per=24.88%, avg=346.84, stdev=70.32, samples=58 iops : min= 52, max= 128, avg=86.36, stdev=17.69, samples=58 lat (msec) : 50=0.08%, 100=2.46%, 250=86.25%, 500=11.21% cpu : usr=0.21%, sys=1.20%, ctx=2437, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=182601: Tue Jun 2 23:02:55 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29369msec); 0 zone resets slat (usec): min=36, max=24387, avg=345.28, stdev=945.59 clat (msec): min=25, max=354, avg=182.45, stdev=50.68 lat (msec): min=26, max=354, avg=182.80, stdev=50.66 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 112], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 223, max= 512, per=24.88%, avg=346.83, stdev=75.12, samples=58 iops : min= 55, max= 128, avg=86.36, stdev=18.84, samples=58 lat (msec) : 50=0.20%, 100=2.70%, 250=86.25%, 500=10.86% cpu : usr=0.16%, sys=1.19%, ctx=2787, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=182602: Tue Jun 2 23:02:55 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29368msec); 0 zone resets slat (usec): min=42, max=19770, avg=345.79, stdev=973.12 clat (msec): min=19, max=343, avg=182.61, stdev=50.55 lat (msec): min=19, max=343, avg=182.96, stdev=50.54 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 114], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 219, max= 512, per=24.88%, avg=346.90, stdev=74.05, samples=58 iops : min= 54, max= 128, avg=86.36, stdev=18.63, samples=58 lat (msec) : 20=0.04%, 100=2.27%, 250=87.15%, 500=10.55% cpu : usr=0.18%, sys=1.13%, ctx=2792, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=1395KiB/s (1428kB/s), 349KiB/s-351KiB/s (357kB/s-360kB/s), io=40.0MiB (41.9MB), run=29147-29369msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=182616: Tue Jun 2 23:03:34 2026 read: IOPS=39, BW=158KiB/s (161kB/s)(5048KiB/32022msec) slat (usec): min=2708, max=91476, avg=14527.32, stdev=8858.46 clat (msec): min=35, max=388, avg=187.97, stdev=53.13 lat (msec): min=72, max=410, avg=202.50, stdev=55.89 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 82, max= 304, per=25.00%, avg=156.51, stdev=41.30, samples=63 iops : min= 20, max= 76, avg=38.63, stdev=10.35, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5192KiB/32022msec); 0 zone resets slat (usec): min=55, max=12078, avg=371.35, stdev=862.21 clat (msec): min=31, max=398, avg=194.16, stdev=52.95 lat (msec): min=35, max=398, avg=194.54, stdev=52.96 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 178], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 54, max= 263, per=24.80%, avg=161.67, stdev=48.13, samples=63 iops : min= 13, max= 65, avg=39.92, stdev=12.14, samples=63 lat (msec) : 50=0.08%, 100=2.11%, 250=85.23%, 500=12.58% cpu : usr=0.24%, sys=1.81%, ctx=4489, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182617: Tue Jun 2 23:03:34 2026 read: IOPS=38, BW=156KiB/s (159kB/s)(4976KiB/31988msec) slat (usec): min=2324, max=86489, avg=14510.37, stdev=8986.20 clat (msec): min=67, max=398, avg=186.14, stdev=53.15 lat (msec): min=79, max=414, avg=200.65, stdev=56.41 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 75, max= 264, per=24.70%, avg=154.60, stdev=43.51, samples=63 iops : min= 18, max= 66, avg=38.16, stdev=10.96, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5264KiB/31988msec); 0 zone resets slat (usec): min=43, max=11409, avg=347.98, stdev=829.06 clat (msec): min=72, max=426, avg=195.88, stdev=53.74 lat (msec): min=72, max=426, avg=196.23, stdev=53.75 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 376], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 95, max= 272, per=25.27%, avg=164.78, stdev=45.27, samples=63 iops : min= 23, max= 68, avg=40.68, stdev=11.40, samples=63 lat (msec) : 100=2.27%, 250=85.27%, 500=12.46% cpu : usr=0.22%, sys=1.98%, ctx=4382, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182618: Tue Jun 2 23:03:34 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31756msec) slat (usec): min=84, max=61809, avg=14153.83, stdev=8477.53 clat (msec): min=14, max=400, avg=186.82, stdev=53.41 lat (msec): min=14, max=418, avg=200.97, stdev=56.38 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 71, max= 264, per=24.97%, avg=156.30, stdev=42.09, samples=63 iops : min= 17, max= 66, avg=38.59, stdev=10.59, samples=63 write: IOPS=41, BW=166KiB/s (169kB/s)(5256KiB/31756msec); 0 zone resets slat (usec): min=53, max=17362, avg=388.32, stdev=1053.38 clat (msec): min=15, max=396, avg=195.12, stdev=54.36 lat (msec): min=15, max=396, avg=195.51, stdev=54.40 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 71, max= 288, per=25.12%, avg=163.78, stdev=45.08, samples=63 iops : min= 17, max= 72, avg=40.44, stdev=11.36, samples=63 lat (msec) : 20=0.12%, 50=0.12%, 100=2.38%, 250=84.10%, 500=13.28% cpu : usr=0.22%, sys=1.99%, ctx=4449, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182619: Tue Jun 2 23:03:34 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5060KiB/31984msec) slat (usec): min=2856, max=73608, avg=14353.18, stdev=8658.30 clat (msec): min=77, max=399, avg=187.95, stdev=53.32 lat (msec): min=80, max=411, avg=202.31, stdev=56.00 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 82, max= 320, per=25.27%, avg=158.17, stdev=42.72, samples=63 iops : min= 20, max= 80, avg=39.05, stdev=10.72, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5180KiB/31984msec); 0 zone resets slat (usec): min=42, max=13890, avg=381.09, stdev=948.68 clat (msec): min=73, max=389, avg=194.23, stdev=51.80 lat (msec): min=73, max=389, avg=194.61, stdev=51.80 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 351], 99.90th=[ 384], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 82, max= 288, per=24.70%, avg=161.06, stdev=45.53, samples=63 iops : min= 20, max= 72, avg=39.78, stdev=11.49, samples=63 lat (msec) : 100=1.80%, 250=86.37%, 500=11.84% cpu : usr=0.26%, sys=1.89%, ctx=4337, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=627KiB/s (642kB/s), 156KiB/s-158KiB/s (159kB/s-162kB/s), io=19.6MiB (20.5MB), run=31756-32022msec WRITE: bw=652KiB/s (668kB/s), 162KiB/s-166KiB/s (166kB/s-169kB/s), io=20.4MiB (21.4MB), run=31756-32022msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=182627: Tue Jun 2 23:03:41 2026 read: IOPS=2, BW=81.5MiB/s (85.4MB/s)(40.0MiB/491msec) slat (nsec): min=51915k, max=51915k, avg=51915468.00, stdev= 0.00 clat (nsec): min=420513k, max=420513k, avg=420513451.00, stdev= 0.00 lat (nsec): min=472433k, max=472433k, avg=472433438.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.20%, sys=2.24%, ctx=10, majf=0, minf=7 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=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=81.5MiB/s (85.4MB/s), 81.5MiB/s-81.5MiB/s (85.4MB/s-85.4MB/s), io=40.0MiB (41.9MB), run=491-491msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout