== sanity test 398c: run fio to test AIO ================= 15:08:46 (1783969726) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.629427 s, 66.6 MB/s osc.lustre-OST0000-osc-ffff91045871c800.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=179414: Mon Jul 13 15:09:25 2026 write: IOPS=91, BW=366KiB/s (375kB/s)(10.0MiB/27951msec); 0 zone resets slat (usec): min=35, max=12303, avg=261.96, stdev=752.32 clat (msec): min=39, max=340, avg=174.30, stdev=38.63 lat (msec): min=39, max=340, avg=174.56, stdev=38.61 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 321], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 183, max= 512, per=25.04%, avg=366.29, stdev=66.73, samples=55 iops : min= 45, max= 128, avg=91.20, stdev=16.71, samples=55 lat (msec) : 50=0.08%, 100=0.59%, 250=95.31%, 500=4.02% cpu : usr=0.19%, sys=1.18%, ctx=2569, majf=0, minf=9 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=179415: Mon Jul 13 15:09:25 2026 write: IOPS=91, BW=367KiB/s (376kB/s)(10.0MiB/27866msec); 0 zone resets slat (usec): min=34, max=14814, avg=227.17, stdev=770.86 clat (msec): min=12, max=332, avg=173.85, stdev=39.02 lat (msec): min=12, max=332, avg=174.08, stdev=39.00 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 118], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 253, max= 520, per=25.04%, avg=366.35, stdev=66.27, samples=55 iops : min= 63, max= 130, avg=91.20, stdev=16.59, samples=55 lat (msec) : 20=0.04%, 50=0.04%, 100=1.29%, 250=95.16%, 500=3.48% cpu : usr=0.12%, sys=1.07%, ctx=1946, 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=179416: Mon Jul 13 15:09:25 2026 write: IOPS=91, BW=366KiB/s (375kB/s)(10.0MiB/27949msec); 0 zone resets slat (usec): min=46, max=15370, avg=283.74, stdev=925.47 clat (msec): min=22, max=340, avg=173.66, stdev=38.74 lat (msec): min=23, max=340, avg=173.94, stdev=38.74 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 292], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 223, max= 504, per=24.94%, avg=364.87, stdev=62.82, samples=55 iops : min= 55, max= 126, avg=90.82, stdev=15.73, samples=55 lat (msec) : 50=0.27%, 100=0.90%, 250=95.31%, 500=3.52% cpu : usr=0.15%, sys=1.37%, ctx=3025, 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=179417: Mon Jul 13 15:09:25 2026 write: IOPS=91, BW=366KiB/s (375kB/s)(10.0MiB/27993msec); 0 zone resets slat (usec): min=38, max=11167, avg=251.14, stdev=701.07 clat (msec): min=18, max=334, avg=174.17, stdev=39.27 lat (msec): min=19, max=334, avg=174.42, stdev=39.25 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 334] bw ( KiB/s): min= 216, max= 509, per=24.92%, avg=364.51, stdev=59.62, samples=55 iops : min= 54, max= 127, avg=90.75, stdev=14.92, samples=55 lat (msec) : 20=0.04%, 50=0.27%, 100=0.62%, 250=94.92%, 500=4.14% cpu : usr=0.15%, sys=1.20%, ctx=2748, 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 Run status group 0 (all jobs): WRITE: bw=1463KiB/s (1498kB/s), 366KiB/s-367KiB/s (375kB/s-376kB/s), io=40.0MiB (41.9MB), run=27866-27993msec 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=179431: Mon Jul 13 15:10:04 2026 read: IOPS=40, BW=162KiB/s (165kB/s)(5048KiB/31245msec) slat (usec): min=2555, max=63079, avg=13927.29, stdev=8446.69 clat (msec): min=33, max=427, avg=183.42, stdev=60.04 lat (msec): min=39, max=440, avg=197.35, stdev=63.05 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 192], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 55, max= 347, per=25.16%, avg=161.52, stdev=50.68, samples=61 iops : min= 13, max= 86, avg=39.90, stdev=12.74, samples=61 write: IOPS=41, BW=166KiB/s (170kB/s)(5192KiB/31245msec); 0 zone resets slat (usec): min=41, max=15492, avg=307.79, stdev=891.97 clat (msec): min=55, max=448, avg=190.41, stdev=59.65 lat (msec): min=55, max=448, avg=190.73, stdev=59.67 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 104], 10.00th=[ 117], 20.00th=[ 138], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 296], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 426], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 56, max= 342, per=24.94%, avg=166.61, stdev=55.93, samples=61 iops : min= 14, max= 85, avg=41.23, stdev=13.97, samples=61 lat (msec) : 50=0.04%, 100=4.84%, 250=80.55%, 500=14.57% cpu : usr=0.27%, sys=1.81%, ctx=4450, 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=179432: Mon Jul 13 15:10:04 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(4976KiB/30595msec) slat (usec): min=64, max=69920, avg=13585.94, stdev=8276.62 clat (msec): min=11, max=423, avg=183.25, stdev=60.49 lat (msec): min=12, max=449, avg=196.84, stdev=63.53 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 97], 10.00th=[ 111], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 190], | 70.00th=[ 211], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 384], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 307, per=25.31%, avg=162.52, stdev=45.79, samples=60 iops : min= 17, max= 76, avg=40.17, stdev=11.54, samples=60 write: IOPS=43, BW=172KiB/s (176kB/s)(5264KiB/30595msec); 0 zone resets slat (usec): min=39, max=36278, avg=307.53, stdev=1331.17 clat (msec): min=32, max=423, avg=184.98, stdev=59.52 lat (msec): min=32, max=423, avg=185.30, stdev=59.50 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 132], | 30.00th=[ 148], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 211], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 397], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 63, max= 350, per=25.87%, avg=172.80, stdev=60.12, samples=60 iops : min= 15, max= 87, avg=42.73, stdev=15.06, samples=60 lat (msec) : 20=0.04%, 50=0.39%, 100=4.14%, 250=80.39%, 500=15.04% cpu : usr=0.25%, sys=1.80%, ctx=4528, 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=179433: Mon Jul 13 15:10:04 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4984KiB/31255msec) slat (usec): min=2802, max=73560, avg=13683.97, stdev=8365.67 clat (msec): min=16, max=420, avg=182.57, stdev=60.03 lat (msec): min=45, max=450, avg=196.25, stdev=62.93 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 100], 10.00th=[ 109], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 209], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 405], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 63, max= 336, per=24.91%, avg=159.93, stdev=53.81, samples=61 iops : min= 15, max= 84, avg=39.54, stdev=13.52, samples=61 write: IOPS=42, BW=168KiB/s (172kB/s)(5256KiB/31255msec); 0 zone resets slat (usec): min=38, max=18780, avg=264.39, stdev=843.55 clat (msec): min=83, max=441, avg=191.94, stdev=59.23 lat (msec): min=83, max=442, avg=192.20, stdev=59.27 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 105], 10.00th=[ 120], 20.00th=[ 140], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 243], 90.00th=[ 268], 95.00th=[ 296], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 426], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 63, max= 315, per=25.15%, avg=168.02, stdev=52.45, samples=61 iops : min= 15, max= 78, avg=41.54, stdev=13.12, samples=61 lat (msec) : 20=0.04%, 50=0.04%, 100=4.61%, 250=79.53%, 500=15.78% cpu : usr=0.26%, sys=1.83%, ctx=4206, 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=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=179434: Mon Jul 13 15:10:04 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5060KiB/31217msec) slat (usec): min=2301, max=68628, avg=13677.98, stdev=8261.09 clat (msec): min=36, max=423, avg=183.10, stdev=60.90 lat (msec): min=43, max=455, avg=196.79, stdev=63.66 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 100], 10.00th=[ 109], 20.00th=[ 128], | 30.00th=[ 144], 40.00th=[ 161], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 209], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 351], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 63, max= 318, per=25.38%, avg=162.93, stdev=53.36, samples=61 iops : min= 15, max= 79, avg=40.30, stdev=13.36, samples=61 write: IOPS=41, BW=166KiB/s (170kB/s)(5180KiB/31217msec); 0 zone resets slat (usec): min=43, max=8175, avg=249.83, stdev=524.89 clat (msec): min=62, max=484, avg=191.19, stdev=61.75 lat (msec): min=62, max=484, avg=191.44, stdev=61.75 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 138], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 78, max= 370, per=24.89%, avg=166.30, stdev=54.94, samples=61 iops : min= 19, max= 92, avg=41.11, stdev=13.77, samples=61 lat (msec) : 50=0.04%, 100=4.18%, 250=80.35%, 500=15.43% cpu : usr=0.25%, sys=1.85%, ctx=4186, 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=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=642KiB/s (657kB/s), 159KiB/s-163KiB/s (163kB/s-167kB/s), io=19.6MiB (20.5MB), run=30595-31255msec WRITE: bw=668KiB/s (684kB/s), 166KiB/s-172KiB/s (170kB/s-176kB/s), io=20.4MiB (21.4MB), run=30595-31255msec 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=179443: Mon Jul 13 15:10:14 2026 read: IOPS=1, BW=76.5MiB/s (80.2MB/s)(40.0MiB/523msec) slat (nsec): min=24621k, max=24621k, avg=24620531.00, stdev= 0.00 clat (nsec): min=466716k, max=466716k, avg=466715832.00, stdev= 0.00 lat (nsec): min=491340k, max=491340k, avg=491340052.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.30%, ctx=9, majf=0, minf=8 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=76.5MiB/s (80.2MB/s), 76.5MiB/s-76.5MiB/s (80.2MB/s-80.2MB/s), io=40.0MiB (41.9MB), run=523-523msec 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