== sanity test 398c: run fio to test AIO ================= 00:48:08 (1789188488) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.209476 s, 200 MB/s osc.lustre-OST0000-osc-ffff8889c95ad000.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=147118: Sat Sep 12 00:49:17 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65121msec); 0 zone resets slat (usec): min=25, max=4466, avg=160.82, stdev=266.78 clat (msec): min=55, max=763, avg=406.50, stdev=103.25 lat (msec): min=55, max=763, avg=406.67, stdev=103.26 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 243], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 550], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 676], 99.90th=[ 743], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 56, max= 344, per=24.96%, avg=156.78, stdev=44.69, samples=129 iops : min= 14, max= 86, avg=38.98, stdev=11.21, samples=129 lat (msec) : 100=0.82%, 250=5.16%, 500=75.74%, 750=18.20%, 1000=0.08% cpu : usr=0.09%, sys=0.48%, ctx=2699, 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=147119: Sat Sep 12 00:49:17 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65121msec); 0 zone resets slat (usec): min=24, max=5107, avg=160.97, stdev=260.05 clat (msec): min=84, max=751, avg=406.44, stdev=102.07 lat (msec): min=84, max=751, avg=406.60, stdev=102.08 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 239], 10.00th=[ 279], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 493], 90.00th=[ 531], 95.00th=[ 575], | 99.00th=[ 651], 99.50th=[ 667], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 751] bw ( KiB/s): min= 71, max= 328, per=24.99%, avg=156.91, stdev=42.57, samples=129 iops : min= 17, max= 82, avg=39.02, stdev=10.70, samples=129 lat (msec) : 100=0.62%, 250=5.59%, 500=76.17%, 750=17.58%, 1000=0.04% cpu : usr=0.09%, sys=0.48%, ctx=2880, 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=147120: Sat Sep 12 00:49:17 2026 write: IOPS=39, BW=158KiB/s (161kB/s)(10.0MiB/64968msec); 0 zone resets slat (usec): min=22, max=9658, avg=177.84, stdev=402.82 clat (msec): min=68, max=751, avg=405.70, stdev=105.42 lat (msec): min=68, max=751, avg=405.88, stdev=105.42 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 232], 10.00th=[ 275], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 456], 80.00th=[ 489], 90.00th=[ 535], 95.00th=[ 575], | 99.00th=[ 676], 99.50th=[ 693], 99.90th=[ 726], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 63, max= 371, per=24.98%, avg=156.87, stdev=44.76, samples=129 iops : min= 15, max= 92, avg=39.01, stdev=11.21, samples=129 lat (msec) : 100=0.94%, 250=6.05%, 500=75.23%, 750=17.73%, 1000=0.04% cpu : usr=0.10%, sys=0.51%, ctx=2728, 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=147121: Sat Sep 12 00:49:17 2026 write: IOPS=39, BW=158KiB/s (161kB/s)(10.0MiB/64970msec); 0 zone resets slat (usec): min=24, max=5069, avg=171.52, stdev=289.65 clat (msec): min=55, max=747, avg=405.60, stdev=102.33 lat (msec): min=56, max=747, avg=405.77, stdev=102.34 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 241], 10.00th=[ 284], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 489], 90.00th=[ 535], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 709], 99.90th=[ 726], 99.95th=[ 735], | 99.99th=[ 751] bw ( KiB/s): min= 56, max= 352, per=24.99%, avg=156.96, stdev=41.92, samples=129 iops : min= 14, max= 88, avg=39.03, stdev=10.53, samples=129 lat (msec) : 100=0.27%, 250=5.98%, 500=76.60%, 750=17.15% cpu : usr=0.10%, sys=0.53%, ctx=2708, 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=629KiB/s (644kB/s), 157KiB/s-158KiB/s (161kB/s-161kB/s), io=40.0MiB (41.9MB), run=64968-65121msec 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=147140: Sat Sep 12 00:50:02 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(5048KiB/40881msec) slat (usec): min=38, max=226835, avg=5695.77, stdev=8825.35 clat (msec): min=5, max=612, avg=163.28, stdev=48.19 lat (msec): min=10, max=619, avg=168.98, stdev=49.36 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 102], 10.00th=[ 114], 20.00th=[ 129], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 266], 99.50th=[ 292], 99.90th=[ 531], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 56, max= 224, per=25.10%, avg=122.98, stdev=38.56, samples=81 iops : min= 14, max= 56, avg=30.43, stdev= 9.70, samples=81 write: IOPS=31, BW=127KiB/s (130kB/s)(5192KiB/40881msec); 0 zone resets slat (usec): min=33, max=6019, avg=175.00, stdev=332.96 clat (msec): min=58, max=709, avg=339.11, stdev=86.10 lat (msec): min=58, max=709, avg=339.28, stdev=86.09 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 203], 10.00th=[ 230], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 338], 60.00th=[ 359], | 70.00th=[ 380], 80.00th=[ 405], 90.00th=[ 443], 95.00th=[ 489], | 99.00th=[ 550], 99.50th=[ 617], 99.90th=[ 701], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 16, max= 223, per=24.80%, avg=126.47, stdev=33.30, samples=81 iops : min= 4, max= 55, avg=31.30, stdev= 8.35, samples=81 lat (msec) : 10=0.20%, 20=0.12%, 50=0.62%, 100=1.72%, 250=52.42% lat (msec) : 500=42.73%, 750=2.19% cpu : usr=0.17%, sys=1.20%, ctx=5025, majf=0, minf=15 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=147141: Sat Sep 12 00:50:02 2026 read: IOPS=30, BW=122KiB/s (125kB/s)(4976KiB/40923msec) slat (usec): min=1370, max=21309, avg=5418.93, stdev=2732.67 clat (msec): min=6, max=294, avg=162.33, stdev=40.44 lat (msec): min=11, max=301, avg=167.75, stdev=41.17 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 230], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 47, max= 232, per=24.64%, avg=120.72, stdev=40.65, samples=81 iops : min= 11, max= 58, avg=29.86, stdev=10.29, samples=81 write: IOPS=32, BW=129KiB/s (132kB/s)(5264KiB/40923msec); 0 zone resets slat (usec): min=29, max=8346, avg=190.18, stdev=340.99 clat (msec): min=97, max=609, avg=337.88, stdev=80.12 lat (msec): min=97, max=609, avg=338.07, stdev=80.14 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 207], 10.00th=[ 230], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 321], 50.00th=[ 342], 60.00th=[ 359], | 70.00th=[ 380], 80.00th=[ 401], 90.00th=[ 439], 95.00th=[ 468], | 99.00th=[ 523], 99.50th=[ 550], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 55, max= 192, per=25.06%, avg=127.80, stdev=25.90, samples=81 iops : min= 13, max= 48, avg=31.63, stdev= 6.52, samples=81 lat (msec) : 10=0.04%, 20=0.04%, 50=0.27%, 100=1.88%, 250=53.12% lat (msec) : 500=43.55%, 750=1.09% cpu : usr=0.20%, sys=1.23%, ctx=5171, 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=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=147142: Sat Sep 12 00:50:02 2026 read: IOPS=30, BW=122KiB/s (125kB/s)(4984KiB/40912msec) slat (usec): min=1447, max=18669, avg=5445.88, stdev=2557.69 clat (msec): min=6, max=325, avg=164.37, stdev=40.60 lat (msec): min=11, max=336, avg=169.82, stdev=41.12 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 103], 10.00th=[ 114], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 232], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 56, max= 215, per=24.89%, avg=121.98, stdev=38.09, samples=81 iops : min= 14, max= 53, avg=30.17, stdev= 9.52, samples=81 write: IOPS=32, BW=128KiB/s (132kB/s)(5256KiB/40912msec); 0 zone resets slat (usec): min=27, max=8133, avg=178.23, stdev=336.46 clat (msec): min=44, max=623, avg=336.09, stdev=80.25 lat (msec): min=44, max=623, avg=336.27, stdev=80.27 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 201], 10.00th=[ 230], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 338], 60.00th=[ 355], | 70.00th=[ 376], 80.00th=[ 405], 90.00th=[ 435], 95.00th=[ 464], | 99.00th=[ 527], 99.50th=[ 558], 99.90th=[ 609], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 79, max= 208, per=25.04%, avg=127.69, stdev=30.04, samples=81 iops : min= 19, max= 52, avg=31.60, stdev= 7.65, samples=81 lat (msec) : 10=0.08%, 20=0.08%, 50=0.27%, 100=1.88%, 250=52.50% lat (msec) : 500=44.06%, 750=1.13% cpu : usr=0.20%, sys=1.17%, ctx=5005, majf=0, minf=15 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=147143: Sat Sep 12 00:50:02 2026 read: IOPS=30, BW=124KiB/s (127kB/s)(5060KiB/40881msec) slat (usec): min=1406, max=21313, avg=5346.38, stdev=2624.90 clat (msec): min=6, max=304, avg=163.65, stdev=39.88 lat (msec): min=13, max=311, avg=169.00, stdev=40.53 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 230], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 32, max= 200, per=25.21%, avg=123.53, stdev=34.81, samples=81 iops : min= 8, max= 50, avg=30.57, stdev= 8.72, samples=81 write: IOPS=31, BW=127KiB/s (130kB/s)(5180KiB/40881msec); 0 zone resets slat (usec): min=34, max=8699, avg=179.93, stdev=352.03 clat (msec): min=91, max=641, avg=338.89, stdev=81.30 lat (msec): min=91, max=641, avg=339.08, stdev=81.31 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 205], 10.00th=[ 230], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 321], 50.00th=[ 342], 60.00th=[ 359], | 70.00th=[ 380], 80.00th=[ 401], 90.00th=[ 443], 95.00th=[ 477], | 99.00th=[ 542], 99.50th=[ 558], 99.90th=[ 634], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 71, max= 192, per=24.75%, avg=126.25, stdev=27.74, samples=81 iops : min= 17, max= 48, avg=31.25, stdev= 7.05, samples=81 lat (msec) : 10=0.08%, 50=0.20%, 100=1.91%, 250=53.63%, 500=42.58% lat (msec) : 750=1.60% cpu : usr=0.17%, sys=1.24%, ctx=5136, majf=1, 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=490KiB/s (502kB/s), 122KiB/s-124KiB/s (125kB/s-127kB/s), io=19.6MiB (20.5MB), run=40881-40923msec WRITE: bw=511KiB/s (523kB/s), 127KiB/s-129KiB/s (130kB/s-132kB/s), io=20.4MiB (21.4MB), run=40881-40923msec 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=147152: Sat Sep 12 00:50:06 2026 read: IOPS=5, BW=219MiB/s (229MB/s)(40.0MiB/183msec) slat (nsec): min=13157k, max=13157k, avg=13156871.00, stdev= 0.00 clat (nsec): min=161920k, max=161920k, avg=161919562.00, stdev= 0.00 lat (nsec): min=175111k, max=175111k, avg=175111310.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 163], 95.00th=[ 163], | 99.00th=[ 163], 99.50th=[ 163], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] lat (msec) : 250=100.00% cpu : usr=0.55%, sys=5.49%, ctx=44, majf=0, minf=9 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=219MiB/s (229MB/s), 219MiB/s-219MiB/s (229MB/s-229MB/s), io=40.0MiB (41.9MB), run=183-183msec 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