== sanity test 398c: run fio to test AIO ================= 10:45:19 (1774881919) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.58009 s, 72.3 MB/s osc.lustre-OST0000-osc-ffff8907de86a800.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=182520: Mon Mar 30 10:46:00 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30052msec); 0 zone resets slat (usec): min=36, max=20779, avg=287.59, stdev=884.38 clat (msec): min=16, max=365, avg=186.66, stdev=46.49 lat (msec): min=17, max=365, avg=186.95, stdev=46.48 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 224], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 175, max= 629, per=24.88%, avg=338.85, stdev=75.50, samples=59 iops : min= 43, max= 157, avg=84.34, stdev=18.88, samples=59 lat (msec) : 20=0.04%, 50=0.08%, 100=0.51%, 250=87.93%, 500=11.45% cpu : usr=0.14%, sys=1.16%, ctx=2506, majf=0, minf=8 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=182521: Mon Mar 30 10:46:00 2026 write: IOPS=85, BW=342KiB/s (350kB/s)(10.0MiB/29963msec); 0 zone resets slat (usec): min=36, max=16004, avg=300.57, stdev=856.70 clat (msec): min=13, max=364, avg=186.14, stdev=46.00 lat (msec): min=13, max=365, avg=186.45, stdev=45.99 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 121], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 192, max= 541, per=24.99%, avg=340.39, stdev=66.00, samples=59 iops : min= 48, max= 135, avg=84.69, stdev=16.53, samples=59 lat (msec) : 20=0.04%, 50=0.16%, 100=0.94%, 250=89.53%, 500=9.34% cpu : usr=0.19%, sys=1.16%, ctx=3009, majf=0, minf=8 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=182522: Mon Mar 30 10:46:00 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29896msec); 0 zone resets slat (usec): min=36, max=13554, avg=259.72, stdev=708.09 clat (msec): min=14, max=360, avg=186.27, stdev=47.02 lat (msec): min=14, max=360, avg=186.54, stdev=47.01 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 115], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 128, max= 557, per=25.06%, avg=341.31, stdev=72.72, samples=59 iops : min= 32, max= 139, avg=84.95, stdev=18.19, samples=59 lat (msec) : 20=0.04%, 50=0.04%, 100=1.56%, 250=87.07%, 500=11.29% cpu : usr=0.14%, sys=1.10%, ctx=2197, 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=182523: Mon Mar 30 10:46:00 2026 write: IOPS=85, BW=341KiB/s (350kB/s)(10.0MiB/29995msec); 0 zone resets slat (usec): min=35, max=17842, avg=287.02, stdev=813.37 clat (msec): min=29, max=334, avg=186.38, stdev=44.72 lat (msec): min=29, max=335, avg=186.67, stdev=44.77 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 199, max= 509, per=24.95%, avg=339.80, stdev=66.43, samples=59 iops : min= 49, max= 127, avg=84.58, stdev=16.63, samples=59 lat (msec) : 50=0.08%, 100=1.33%, 250=89.61%, 500=8.98% cpu : usr=0.14%, sys=1.20%, ctx=2334, 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 Run status group 0 (all jobs): WRITE: bw=1363KiB/s (1396kB/s), 341KiB/s-343KiB/s (349kB/s-351kB/s), io=40.0MiB (41.9MB), run=29896-30052msec 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=182537: Mon Mar 30 10:46:43 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(5048KiB/34035msec) slat (usec): min=57, max=60763, avg=14164.06, stdev=7938.48 clat (msec): min=63, max=417, avg=201.75, stdev=49.74 lat (msec): min=68, max=447, avg=215.92, stdev=51.52 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 224], 80.00th=[ 243], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 405], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 55, max= 232, per=25.21%, avg=147.24, stdev=32.02, samples=67 iops : min= 13, max= 58, avg=36.28, stdev= 8.10, samples=67 write: IOPS=38, BW=153KiB/s (156kB/s)(5192KiB/34035msec); 0 zone resets slat (usec): min=40, max=11765, avg=281.47, stdev=655.43 clat (msec): min=44, max=433, avg=208.81, stdev=45.71 lat (msec): min=45, max=433, avg=209.09, stdev=45.73 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 47, max= 221, per=24.99%, avg=151.91, stdev=37.31, samples=67 iops : min= 11, max= 55, avg=37.45, stdev= 9.39, samples=67 lat (msec) : 50=0.04%, 100=0.55%, 250=82.42%, 500=16.99% cpu : usr=0.20%, sys=1.90%, ctx=4545, 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=182538: Mon Mar 30 10:46:43 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(4976KiB/34304msec) slat (usec): min=3134, max=53285, avg=14435.66, stdev=7806.76 clat (msec): min=52, max=448, avg=202.87, stdev=49.17 lat (msec): min=62, max=459, avg=217.31, stdev=50.55 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 430], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 71, max= 240, per=24.61%, avg=143.74, stdev=35.40, samples=68 iops : min= 17, max= 60, avg=35.40, stdev= 8.96, samples=68 write: IOPS=38, BW=153KiB/s (157kB/s)(5264KiB/34304msec); 0 zone resets slat (usec): min=39, max=16403, avg=297.05, stdev=873.26 clat (msec): min=87, max=381, avg=209.08, stdev=45.38 lat (msec): min=88, max=381, avg=209.38, stdev=45.39 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 71, max= 225, per=25.15%, avg=152.94, stdev=36.62, samples=68 iops : min= 17, max= 56, avg=37.69, stdev= 9.23, samples=68 lat (msec) : 100=0.23%, 250=82.70%, 500=17.07% cpu : usr=0.21%, sys=1.77%, ctx=4110, 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=182539: Mon Mar 30 10:46:43 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(4984KiB/34307msec) slat (usec): min=2667, max=55539, avg=14367.50, stdev=7637.29 clat (msec): min=36, max=394, avg=203.16, stdev=48.33 lat (msec): min=58, max=421, avg=217.54, stdev=49.82 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 380], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 71, max= 231, per=24.74%, avg=144.47, stdev=30.52, samples=68 iops : min= 17, max= 57, avg=35.59, stdev= 7.69, samples=68 write: IOPS=38, BW=153KiB/s (157kB/s)(5256KiB/34307msec); 0 zone resets slat (usec): min=38, max=52880, avg=346.81, stdev=1645.26 clat (msec): min=50, max=385, avg=208.29, stdev=45.31 lat (msec): min=50, max=386, avg=208.64, stdev=45.31 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 72, max= 241, per=24.98%, avg=151.88, stdev=39.42, samples=68 iops : min= 18, max= 60, avg=37.44, stdev= 9.96, samples=68 lat (msec) : 50=0.04%, 100=0.47%, 250=83.16%, 500=16.33% cpu : usr=0.27%, sys=2.10%, ctx=4689, 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=182540: Mon Mar 30 10:46:43 2026 read: IOPS=36, BW=148KiB/s (151kB/s)(5060KiB/34276msec) slat (usec): min=2021, max=81507, avg=14721.62, stdev=7847.24 clat (msec): min=17, max=510, avg=203.77, stdev=49.81 lat (msec): min=43, max=520, avg=218.49, stdev=51.60 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 372], 99.90th=[ 405], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 71, max= 216, per=25.11%, avg=146.62, stdev=28.81, samples=68 iops : min= 17, max= 54, avg=36.10, stdev= 7.26, samples=68 write: IOPS=37, BW=151KiB/s (155kB/s)(5180KiB/34276msec); 0 zone resets slat (usec): min=38, max=18515, avg=325.26, stdev=1042.16 clat (msec): min=52, max=418, avg=207.33, stdev=45.57 lat (msec): min=52, max=418, avg=207.66, stdev=45.57 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 144], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 393], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 63, max= 243, per=24.69%, avg=150.10, stdev=38.52, samples=68 iops : min= 15, max= 60, avg=36.99, stdev= 9.76, samples=68 lat (msec) : 20=0.04%, 100=0.12%, 250=83.40%, 500=16.41%, 750=0.04% cpu : usr=0.25%, sys=1.95%, ctx=4336, 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=585KiB/s (599kB/s), 145KiB/s-148KiB/s (149kB/s-152kB/s), io=19.6MiB (20.5MB), run=34035-34307msec WRITE: bw=609KiB/s (624kB/s), 151KiB/s-153KiB/s (155kB/s-157kB/s), io=20.4MiB (21.4MB), run=34035-34307msec 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=182550: Mon Mar 30 10:46:55 2026 read: IOPS=2, BW=91.0MiB/s (96.4MB/s)(40.0MiB/435msec) slat (nsec): min=51147k, max=51147k, avg=51146986.00, stdev= 0.00 clat (nsec): min=353319k, max=353319k, avg=353319453.00, stdev= 0.00 lat (nsec): min=404471k, max=404471k, avg=404471204.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.30%, ctx=14, 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=91.0MiB/s (96.4MB/s), 91.0MiB/s-91.0MiB/s (96.4MB/s-96.4MB/s), io=40.0MiB (41.9MB), run=435-435msec 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