== sanity test 398c: run fio to test AIO ================= 21:19:19 (1788571159) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.499934 s, 83.9 MB/s osc.lustre-OST0000-osc-ffff9efaa57e5800.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=179184: Fri Sep 4 21:19:58 2026 write: IOPS=87, BW=349KiB/s (358kB/s)(10.0MiB/29303msec); 0 zone resets slat (usec): min=29, max=11079, avg=284.08, stdev=847.78 clat (msec): min=31, max=351, avg=182.68, stdev=44.89 lat (msec): min=31, max=352, avg=182.97, stdev=44.91 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 191, max= 510, per=25.05%, avg=349.14, stdev=68.92, samples=58 iops : min= 47, max= 127, avg=86.95, stdev=17.25, samples=58 lat (msec) : 50=0.12%, 100=0.66%, 250=91.41%, 500=7.81% cpu : usr=0.21%, sys=1.00%, ctx=2737, 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=179185: Fri Sep 4 21:19:58 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29372msec); 0 zone resets slat (usec): min=28, max=17745, avg=311.80, stdev=1023.95 clat (msec): min=23, max=349, avg=182.58, stdev=45.55 lat (msec): min=23, max=349, avg=182.90, stdev=45.54 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 351] bw ( KiB/s): min= 167, max= 542, per=25.00%, avg=348.45, stdev=73.07, samples=58 iops : min= 41, max= 135, avg=86.76, stdev=18.27, samples=58 lat (msec) : 50=0.12%, 100=0.90%, 250=92.15%, 500=6.84% cpu : usr=0.22%, sys=1.06%, ctx=2929, 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=179186: Fri Sep 4 21:19:58 2026 write: IOPS=87, BW=349KiB/s (358kB/s)(10.0MiB/29329msec); 0 zone resets slat (usec): min=30, max=19148, avg=319.76, stdev=965.06 clat (msec): min=26, max=351, avg=182.85, stdev=45.32 lat (msec): min=26, max=351, avg=183.17, stdev=45.29 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 351] bw ( KiB/s): min= 215, max= 518, per=25.04%, avg=349.02, stdev=64.84, samples=58 iops : min= 53, max= 129, avg=86.91, stdev=16.23, samples=58 lat (msec) : 50=0.08%, 100=0.90%, 250=90.62%, 500=8.40% cpu : usr=0.19%, sys=1.15%, ctx=2909, 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=179187: Fri Sep 4 21:19:58 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29362msec); 0 zone resets slat (usec): min=32, max=16838, avg=289.78, stdev=865.54 clat (msec): min=26, max=338, avg=182.37, stdev=44.66 lat (msec): min=27, max=338, avg=182.66, stdev=44.64 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 326], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 175, max= 510, per=24.96%, avg=348.00, stdev=73.60, samples=58 iops : min= 43, max= 127, avg=86.64, stdev=18.40, samples=58 lat (msec) : 50=0.08%, 100=0.82%, 250=91.64%, 500=7.46% cpu : usr=0.23%, sys=1.08%, ctx=2844, 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=1395KiB/s (1428kB/s), 349KiB/s-349KiB/s (357kB/s-358kB/s), io=40.0MiB (41.9MB), run=29303-29372msec 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=179202: Fri Sep 4 21:20:46 2026 read: IOPS=34, BW=137KiB/s (141kB/s)(5048KiB/36765msec) slat (msec): min=2, max=237, avg=16.27, stdev=10.57 clat (msec): min=33, max=468, avg=214.02, stdev=51.60 lat (msec): min=74, max=482, avg=230.29, stdev=53.18 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 56, max= 229, per=25.00%, avg=136.24, stdev=33.46, samples=72 iops : min= 14, max= 57, avg=33.56, stdev= 8.36, samples=72 write: IOPS=35, BW=141KiB/s (145kB/s)(5192KiB/36765msec); 0 zone resets slat (usec): min=31, max=29515, avg=293.43, stdev=1123.26 clat (msec): min=54, max=498, avg=224.92, stdev=53.49 lat (msec): min=54, max=498, avg=225.22, stdev=53.45 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 222], 60.00th=[ 234], | 70.00th=[ 247], 80.00th=[ 264], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 447], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 39, max= 222, per=24.78%, avg=140.74, stdev=33.61, samples=72 iops : min= 9, max= 55, avg=34.67, stdev= 8.40, samples=72 lat (msec) : 50=0.04%, 100=0.27%, 250=75.51%, 500=24.18% cpu : usr=0.24%, sys=1.79%, ctx=3708, 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=179203: Fri Sep 4 21:20:46 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(4976KiB/36380msec) slat (usec): min=38, max=67729, avg=16017.76, stdev=8501.75 clat (msec): min=35, max=428, avg=214.75, stdev=51.18 lat (msec): min=35, max=446, avg=230.78, stdev=53.25 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 71, max= 247, per=25.01%, avg=136.30, stdev=34.66, samples=71 iops : min= 17, max= 61, avg=33.58, stdev= 8.62, samples=71 write: IOPS=36, BW=145KiB/s (148kB/s)(5264KiB/36380msec); 0 zone resets slat (usec): min=31, max=32323, avg=322.77, stdev=1255.67 clat (msec): min=60, max=485, avg=223.11, stdev=46.87 lat (msec): min=60, max=486, avg=223.44, stdev=46.85 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 153], 10.00th=[ 163], 20.00th=[ 186], | 30.00th=[ 201], 40.00th=[ 211], 50.00th=[ 222], 60.00th=[ 232], | 70.00th=[ 243], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 342], 99.50th=[ 405], 99.90th=[ 481], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 71, max= 230, per=25.47%, avg=144.69, stdev=31.98, samples=71 iops : min= 17, max= 57, avg=35.68, stdev= 8.10, samples=71 lat (msec) : 50=0.20%, 100=0.23%, 250=76.33%, 500=23.24% cpu : usr=0.28%, sys=1.69%, ctx=3879, 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=179204: Fri Sep 4 21:20:46 2026 read: IOPS=33, BW=136KiB/s (139kB/s)(4984KiB/36699msec) slat (usec): min=3513, max=59550, avg=16390.56, stdev=8416.46 clat (msec): min=86, max=390, avg=215.25, stdev=47.98 lat (msec): min=100, max=406, avg=231.65, stdev=49.49 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 236], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 68, max= 231, per=24.92%, avg=135.83, stdev=34.71, samples=72 iops : min= 17, max= 57, avg=33.44, stdev= 8.69, samples=72 write: IOPS=35, BW=143KiB/s (147kB/s)(5256KiB/36699msec); 0 zone resets slat (usec): min=29, max=24194, avg=355.69, stdev=1478.26 clat (msec): min=97, max=396, avg=223.63, stdev=47.02 lat (msec): min=99, max=396, avg=224.00, stdev=47.04 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 264], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 380], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 62, max= 263, per=25.10%, avg=142.54, stdev=35.30, samples=72 iops : min= 15, max= 65, avg=35.15, stdev= 8.84, samples=72 lat (msec) : 100=0.12%, 250=74.65%, 500=25.23% cpu : usr=0.27%, sys=1.73%, ctx=3858, 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=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=179205: Fri Sep 4 21:20:46 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(5060KiB/36527msec) slat (usec): min=3471, max=65814, avg=16494.49, stdev=8550.45 clat (msec): min=99, max=414, avg=215.57, stdev=48.80 lat (msec): min=104, max=436, avg=232.07, stdev=50.57 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 69, max= 215, per=25.31%, avg=137.94, stdev=30.29, samples=72 iops : min= 17, max= 53, avg=33.97, stdev= 7.58, samples=72 write: IOPS=35, BW=142KiB/s (145kB/s)(5180KiB/36527msec); 0 zone resets slat (usec): min=31, max=22288, avg=284.18, stdev=982.21 clat (msec): min=87, max=419, avg=221.53, stdev=45.08 lat (msec): min=87, max=419, avg=221.82, stdev=45.06 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 232], | 70.00th=[ 243], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 401], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 74, max= 223, per=24.88%, avg=141.29, stdev=34.64, samples=72 iops : min= 18, max= 55, avg=34.82, stdev= 8.67, samples=72 lat (msec) : 100=0.08%, 250=76.52%, 500=23.40% cpu : usr=0.21%, sys=1.69%, ctx=3681, 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=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=546KiB/s (559kB/s), 136KiB/s-139KiB/s (139kB/s-142kB/s), io=19.6MiB (20.5MB), run=36380-36765msec WRITE: bw=568KiB/s (582kB/s), 141KiB/s-145KiB/s (145kB/s-148kB/s), io=20.4MiB (21.4MB), run=36380-36765msec 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=179221: Fri Sep 4 21:20:57 2026 read: IOPS=1, BW=74.9MiB/s (78.5MB/s)(40.0MiB/534msec) slat (nsec): min=38147k, max=38147k, avg=38147159.00, stdev= 0.00 clat (nsec): min=467882k, max=467882k, avg=467881809.00, stdev= 0.00 lat (nsec): min=506034k, max=506034k, avg=506033505.00, 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=0.19%, sys=2.06%, ctx=6, 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=74.9MiB/s (78.5MB/s), 74.9MiB/s-74.9MiB/s (78.5MB/s-78.5MB/s), io=40.0MiB (41.9MB), run=534-534msec 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