== sanity test 398c: run fio to test AIO ================= 14:34:32 (1763408072) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.656935 s, 63.8 MB/s osc.lustre-OST0000-osc-ffff97e0b183a800.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=183077: Mon Nov 17 14:35:08 2025 write: IOPS=91, BW=368KiB/s (377kB/s)(10.0MiB/27834msec); 0 zone resets slat (usec): min=27, max=22487, avg=172.34, stdev=633.85 clat (msec): min=19, max=312, avg=173.54, stdev=37.97 lat (msec): min=19, max=312, avg=173.72, stdev=37.94 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 122], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 268], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 313] bw ( KiB/s): min= 254, max= 558, per=25.17%, avg=367.73, stdev=59.28, samples=55 iops : min= 63, max= 139, avg=91.53, stdev=14.78, samples=55 lat (msec) : 20=0.04%, 50=0.20%, 100=0.94%, 250=94.65%, 500=4.18% cpu : usr=0.13%, sys=0.96%, ctx=2771, 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=183078: Mon Nov 17 14:35:08 2025 write: IOPS=91, BW=365KiB/s (374kB/s)(10.0MiB/28018msec); 0 zone resets slat (usec): min=27, max=16664, avg=154.74, stdev=672.59 clat (msec): min=35, max=328, avg=174.22, stdev=37.64 lat (msec): min=35, max=328, avg=174.38, stdev=37.63 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 288], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 330] bw ( KiB/s): min= 246, max= 510, per=24.96%, avg=364.65, stdev=65.34, samples=55 iops : min= 61, max= 127, avg=90.76, stdev=16.30, samples=55 lat (msec) : 50=0.04%, 100=0.66%, 250=96.37%, 500=2.93% cpu : usr=0.16%, sys=0.74%, ctx=2013, 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=183079: Mon Nov 17 14:35:08 2025 write: IOPS=91, BW=365KiB/s (374kB/s)(10.0MiB/28018msec); 0 zone resets slat (usec): min=26, max=8877, avg=122.59, stdev=430.03 clat (msec): min=97, max=301, avg=174.09, stdev=36.52 lat (msec): min=97, max=301, avg=174.22, stdev=36.54 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 125], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 253, max= 510, per=24.97%, avg=364.87, stdev=57.91, samples=55 iops : min= 63, max= 127, avg=90.85, stdev=14.50, samples=55 lat (msec) : 100=0.59%, 250=95.66%, 500=3.75% cpu : usr=0.11%, sys=0.68%, ctx=1637, 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=183080: Mon Nov 17 14:35:08 2025 write: IOPS=91, BW=366KiB/s (375kB/s)(10.0MiB/27969msec); 0 zone resets slat (usec): min=27, max=12897, avg=174.07, stdev=597.32 clat (msec): min=27, max=344, avg=173.69, stdev=37.49 lat (msec): min=27, max=345, avg=173.87, stdev=37.49 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 123], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 159, max= 512, per=25.08%, avg=366.45, stdev=61.39, samples=55 iops : min= 39, max= 128, avg=91.24, stdev=15.36, samples=55 lat (msec) : 50=0.12%, 100=1.29%, 250=95.51%, 500=3.09% cpu : usr=0.13%, sys=0.90%, ctx=2816, 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=1462KiB/s (1497kB/s), 365KiB/s-368KiB/s (374kB/s-377kB/s), io=40.0MiB (41.9MB), run=27834-28018msec 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=183093: Mon Nov 17 14:35:43 2025 read: IOPS=43, BW=174KiB/s (178kB/s)(5048KiB/29019msec) slat (usec): min=2593, max=56924, avg=11704.97, stdev=5311.62 clat (msec): min=16, max=338, avg=171.10, stdev=37.62 lat (msec): min=29, max=351, avg=182.81, stdev=38.56 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 117], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 103, max= 262, per=25.14%, avg=173.47, stdev=38.51, samples=57 iops : min= 25, max= 65, avg=42.88, stdev= 9.67, samples=57 write: IOPS=44, BW=179KiB/s (183kB/s)(5192KiB/29019msec); 0 zone resets slat (usec): min=29, max=5674, avg=162.71, stdev=401.72 clat (msec): min=103, max=318, avg=177.55, stdev=36.02 lat (msec): min=103, max=318, avg=177.72, stdev=36.02 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 128], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 104, max= 260, per=24.88%, avg=178.67, stdev=38.17, samples=57 iops : min= 26, max= 65, avg=44.18, stdev= 9.53, samples=57 lat (msec) : 20=0.04%, 100=0.43%, 250=96.52%, 500=3.01% cpu : usr=0.14%, sys=1.53%, ctx=4405, 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=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=183094: Mon Nov 17 14:35:43 2025 read: IOPS=43, BW=173KiB/s (177kB/s)(4976KiB/28842msec) slat (usec): min=33, max=54162, avg=11950.56, stdev=5453.12 clat (msec): min=15, max=348, avg=170.30, stdev=40.02 lat (msec): min=16, max=358, avg=182.25, stdev=41.41 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 96, max= 262, per=24.84%, avg=171.39, stdev=42.31, samples=57 iops : min= 24, max= 65, avg=42.35, stdev=10.59, samples=57 write: IOPS=45, BW=183KiB/s (187kB/s)(5264KiB/28842msec); 0 zone resets slat (usec): min=29, max=12838, avg=178.52, stdev=621.23 clat (msec): min=47, max=315, avg=177.67, stdev=36.42 lat (msec): min=47, max=316, avg=177.86, stdev=36.45 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 111, max= 261, per=25.35%, avg=181.98, stdev=39.73, samples=57 iops : min= 27, max= 65, avg=45.02, stdev=10.00, samples=57 lat (msec) : 20=0.12%, 50=0.23%, 100=0.70%, 250=95.27%, 500=3.67% cpu : usr=0.23%, sys=1.41%, ctx=4031, 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=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=183095: Mon Nov 17 14:35:43 2025 read: IOPS=43, BW=172KiB/s (176kB/s)(4984KiB/28950msec) slat (usec): min=2764, max=56259, avg=11878.83, stdev=5562.58 clat (msec): min=85, max=324, avg=170.32, stdev=38.22 lat (msec): min=95, max=333, avg=182.20, stdev=39.45 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 94, max= 315, per=24.90%, avg=171.81, stdev=42.06, samples=57 iops : min= 23, max= 78, avg=42.44, stdev=10.50, samples=57 write: IOPS=45, BW=182KiB/s (186kB/s)(5256KiB/28950msec); 0 zone resets slat (usec): min=30, max=16609, avg=170.69, stdev=608.15 clat (msec): min=41, max=322, avg=177.46, stdev=36.91 lat (msec): min=41, max=322, avg=177.63, stdev=36.93 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 119, max= 280, per=25.11%, avg=180.30, stdev=39.72, samples=57 iops : min= 29, max= 70, avg=44.56, stdev= 9.97, samples=57 lat (msec) : 50=0.04%, 100=0.74%, 250=95.70%, 500=3.52% cpu : usr=0.21%, sys=1.51%, ctx=3885, 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=183096: Mon Nov 17 14:35:43 2025 read: IOPS=43, BW=174KiB/s (178kB/s)(5060KiB/29073msec) slat (msec): min=2, max=146, avg=12.07, stdev= 6.70 clat (msec): min=16, max=329, avg=170.82, stdev=40.36 lat (msec): min=29, max=352, avg=182.89, stdev=41.66 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 87, max= 270, per=24.96%, avg=172.23, stdev=42.05, samples=57 iops : min= 21, max= 67, avg=42.56, stdev=10.52, samples=57 write: IOPS=44, BW=178KiB/s (182kB/s)(5180KiB/29073msec); 0 zone resets slat (usec): min=31, max=16760, avg=186.82, stdev=697.37 clat (msec): min=30, max=302, avg=178.65, stdev=38.97 lat (msec): min=32, max=304, avg=178.84, stdev=38.92 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 104, max= 268, per=24.44%, avg=175.49, stdev=33.49, samples=57 iops : min= 26, max= 67, avg=43.39, stdev= 8.41, samples=57 lat (msec) : 20=0.08%, 50=0.23%, 100=1.29%, 250=94.41%, 500=3.98% cpu : usr=0.19%, sys=1.48%, ctx=4593, 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=690KiB/s (707kB/s), 172KiB/s-174KiB/s (176kB/s-178kB/s), io=19.6MiB (20.5MB), run=28842-29073msec WRITE: bw=719KiB/s (736kB/s), 178KiB/s-183KiB/s (182kB/s-187kB/s), io=20.4MiB (21.4MB), run=28842-29073msec 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=183105: Mon Nov 17 14:35:54 2025 read: IOPS=1, BW=77.8MiB/s (81.6MB/s)(40.0MiB/514msec) slat (nsec): min=42200k, max=42200k, avg=42200320.00, stdev= 0.00 clat (nsec): min=448541k, max=448541k, avg=448541387.00, stdev= 0.00 lat (nsec): min=490747k, max=490747k, avg=490746549.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.53%, ctx=7, 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=77.8MiB/s (81.6MB/s), 77.8MiB/s-77.8MiB/s (81.6MB/s-81.6MB/s), io=40.0MiB (41.9MB), run=514-514msec 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