== sanity test 398c: run fio to test AIO ================= 11:43:24 (1772469804) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.538155 s, 77.9 MB/s osc.lustre-OST0000-osc-ffff934d0ecdd000.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=182237: Mon Mar 2 11:44:04 2026 write: IOPS=81, BW=327KiB/s (335kB/s)(10.0MiB/31330msec); 0 zone resets slat (usec): min=22, max=18291, avg=167.26, stdev=778.12 clat (msec): min=17, max=392, avg=194.79, stdev=49.88 lat (msec): min=18, max=392, avg=194.96, stdev=49.87 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 393] bw ( KiB/s): min= 182, max= 510, per=24.93%, avg=325.79, stdev=67.67, samples=62 iops : min= 45, max= 127, avg=81.05, stdev=16.95, samples=62 lat (msec) : 20=0.04%, 50=0.08%, 100=0.12%, 250=88.20%, 500=11.56% cpu : usr=0.17%, sys=0.82%, ctx=2095, 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=182238: Mon Mar 2 11:44:04 2026 write: IOPS=81, BW=327KiB/s (335kB/s)(10.0MiB/31331msec); 0 zone resets slat (usec): min=22, max=20633, avg=156.89, stdev=684.28 clat (msec): min=25, max=402, avg=194.92, stdev=50.07 lat (msec): min=26, max=403, avg=195.07, stdev=50.07 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 393], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 174, max= 518, per=24.93%, avg=325.79, stdev=73.51, samples=62 iops : min= 43, max= 129, avg=81.03, stdev=18.42, samples=62 lat (msec) : 50=0.20%, 100=0.47%, 250=86.72%, 500=12.62% cpu : usr=0.20%, sys=0.93%, ctx=2176, 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=182239: Mon Mar 2 11:44:04 2026 write: IOPS=82, BW=328KiB/s (336kB/s)(10.0MiB/31179msec); 0 zone resets slat (usec): min=27, max=17684, avg=179.57, stdev=715.63 clat (msec): min=26, max=379, avg=194.49, stdev=50.18 lat (msec): min=26, max=379, avg=194.67, stdev=50.19 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 380] bw ( KiB/s): min= 151, max= 517, per=25.12%, avg=328.31, stdev=75.54, samples=61 iops : min= 37, max= 129, avg=81.69, stdev=18.92, samples=61 lat (msec) : 50=0.23%, 100=1.91%, 250=86.21%, 500=11.64% cpu : usr=0.15%, sys=0.74%, ctx=2301, majf=0, minf=11 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=182240: Mon Mar 2 11:44:04 2026 write: IOPS=81, BW=327KiB/s (335kB/s)(10.0MiB/31299msec); 0 zone resets slat (usec): min=22, max=12109, avg=153.72, stdev=621.21 clat (msec): min=27, max=391, avg=195.10, stdev=49.52 lat (msec): min=27, max=391, avg=195.25, stdev=49.53 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 205, max= 512, per=24.95%, avg=326.03, stdev=82.73, samples=62 iops : min= 51, max= 128, avg=81.11, stdev=20.74, samples=62 lat (msec) : 50=0.12%, 100=0.51%, 250=85.86%, 500=13.52% cpu : usr=0.13%, sys=0.54%, ctx=1486, majf=0, minf=11 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=1307KiB/s (1339kB/s), 327KiB/s-328KiB/s (335kB/s-336kB/s), io=40.0MiB (41.9MB), run=31179-31331msec 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=182255: Mon Mar 2 11:44:43 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5048KiB/29543msec) slat (msec): min=2, max=103, avg=13.85, stdev= 8.38 clat (msec): min=13, max=356, avg=173.21, stdev=47.01 lat (msec): min=25, max=366, avg=187.07, stdev=48.64 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 71, max= 261, per=24.90%, avg=169.05, stdev=39.93, samples=58 iops : min= 17, max= 65, avg=41.88, stdev= 9.98, samples=58 write: IOPS=43, BW=176KiB/s (180kB/s)(5192KiB/29543msec); 0 zone resets slat (usec): min=27, max=9109, avg=187.87, stdev=571.38 clat (msec): min=12, max=325, avg=179.61, stdev=42.93 lat (msec): min=12, max=325, avg=179.80, stdev=42.92 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 57, max= 256, per=24.73%, avg=174.83, stdev=46.16, samples=58 iops : min= 14, max= 64, avg=43.34, stdev=11.52, samples=58 lat (msec) : 20=0.08%, 50=0.20%, 100=1.76%, 250=91.37%, 500=6.60% cpu : usr=0.28%, sys=1.81%, ctx=4248, 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=182256: Mon Mar 2 11:44:43 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4976KiB/29376msec) slat (usec): min=2786, max=63649, avg=13617.56, stdev=8109.58 clat (msec): min=38, max=325, avg=172.98, stdev=43.21 lat (msec): min=66, max=331, avg=186.61, stdev=44.86 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 35, max= 256, per=24.84%, avg=168.67, stdev=41.96, samples=58 iops : min= 8, max= 64, avg=41.79, stdev=10.52, samples=58 write: IOPS=44, BW=179KiB/s (183kB/s)(5264KiB/29376msec); 0 zone resets slat (usec): min=22, max=17694, avg=220.96, stdev=952.84 clat (msec): min=71, max=343, avg=178.75, stdev=41.29 lat (msec): min=71, max=343, avg=178.97, stdev=41.28 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 122], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 99, max= 288, per=25.34%, avg=179.12, stdev=41.55, samples=58 iops : min= 24, max= 72, avg=44.41, stdev=10.40, samples=58 lat (msec) : 50=0.04%, 100=1.48%, 250=92.42%, 500=6.05% cpu : usr=0.24%, sys=1.71%, ctx=4362, 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=182257: Mon Mar 2 11:44:43 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4984KiB/29537msec) slat (usec): min=2249, max=81325, avg=13846.29, stdev=8171.72 clat (msec): min=14, max=315, avg=172.58, stdev=42.96 lat (msec): min=35, max=337, avg=186.43, stdev=44.76 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 253], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 49, max= 256, per=24.80%, avg=168.40, stdev=40.45, samples=58 iops : min= 12, max= 64, avg=41.72, stdev=10.11, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5256KiB/29537msec); 0 zone resets slat (usec): min=21, max=22142, avg=220.24, stdev=1094.16 clat (msec): min=59, max=332, avg=179.92, stdev=43.45 lat (msec): min=60, max=332, avg=180.14, stdev=43.43 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 117], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 63, max= 272, per=25.02%, avg=176.88, stdev=47.15, samples=58 iops : min= 15, max= 68, avg=43.86, stdev=11.77, samples=58 lat (msec) : 20=0.04%, 50=0.04%, 100=1.99%, 250=91.48%, 500=6.45% cpu : usr=0.31%, sys=1.92%, ctx=4408, 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=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=182258: Mon Mar 2 11:44:43 2026 read: IOPS=43, BW=172KiB/s (176kB/s)(5060KiB/29413msec) slat (usec): min=47, max=59432, avg=14015.80, stdev=8302.92 clat (msec): min=18, max=335, avg=173.51, stdev=43.24 lat (msec): min=24, max=346, avg=187.53, stdev=45.04 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 326], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 106, max= 235, per=25.33%, avg=172.00, stdev=30.32, samples=58 iops : min= 26, max= 58, avg=42.60, stdev= 7.53, samples=58 write: IOPS=44, BW=176KiB/s (180kB/s)(5180KiB/29413msec); 0 zone resets slat (usec): min=31, max=11928, avg=171.33, stdev=542.12 clat (msec): min=25, max=332, avg=179.44, stdev=42.27 lat (msec): min=25, max=332, avg=179.62, stdev=42.26 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 253], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 87, max= 272, per=24.76%, avg=175.09, stdev=45.47, samples=58 iops : min= 21, max= 68, avg=43.40, stdev=11.38, samples=58 lat (msec) : 20=0.04%, 50=0.20%, 100=1.17%, 250=93.28%, 500=5.31% cpu : usr=0.26%, sys=1.88%, ctx=4205, 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=679KiB/s (696kB/s), 169KiB/s-172KiB/s (173kB/s-176kB/s), io=19.6MiB (20.5MB), run=29376-29543msec WRITE: bw=707KiB/s (724kB/s), 176KiB/s-179KiB/s (180kB/s-183kB/s), io=20.4MiB (21.4MB), run=29376-29543msec 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=182266: Mon Mar 2 11:44:54 2026 read: IOPS=2, BW=84.7MiB/s (88.9MB/s)(40.0MiB/472msec) slat (nsec): min=42514k, max=42514k, avg=42514344.00, stdev= 0.00 clat (nsec): min=408486k, max=408486k, avg=408485557.00, stdev= 0.00 lat (nsec): min=451004k, max=451004k, avg=451003678.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.91%, ctx=3, majf=0, minf=10 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=84.7MiB/s (88.9MB/s), 84.7MiB/s-84.7MiB/s (88.9MB/s-88.9MB/s), io=40.0MiB (41.9MB), run=472-472msec 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