== sanity test 398c: run fio to test AIO ================= 11:49:12 (1786981752) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.650095 s, 64.5 MB/s osc.lustre-OST0000-osc-ffff8f4fed8dd000.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=180603: Mon Aug 17 11:49:46 2026 write: IOPS=112, BW=449KiB/s (459kB/s)(10.0MiB/22831msec); 0 zone resets slat (usec): min=37, max=11554, avg=242.06, stdev=639.46 clat (msec): min=12, max=322, avg=141.49, stdev=33.55 lat (msec): min=13, max=324, avg=141.74, stdev=33.57 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 101], 10.00th=[ 107], 20.00th=[ 121], | 30.00th=[ 128], 40.00th=[ 132], 50.00th=[ 138], 60.00th=[ 142], | 70.00th=[ 148], 80.00th=[ 159], 90.00th=[ 180], 95.00th=[ 213], | 99.00th=[ 251], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 232, max= 640, per=24.96%, avg=447.53, stdev=86.85, samples=45 iops : min= 58, max= 160, avg=111.51, stdev=21.66, samples=45 lat (msec) : 20=0.04%, 50=0.31%, 100=4.69%, 250=94.10%, 500=0.86% cpu : usr=0.15%, sys=1.37%, ctx=2617, 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=180604: Mon Aug 17 11:49:46 2026 write: IOPS=112, BW=451KiB/s (462kB/s)(10.0MiB/22706msec); 0 zone resets slat (usec): min=40, max=14823, avg=276.65, stdev=797.73 clat (msec): min=18, max=327, avg=141.30, stdev=32.80 lat (msec): min=19, max=327, avg=141.58, stdev=32.82 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 122], | 30.00th=[ 127], 40.00th=[ 132], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 146], 80.00th=[ 157], 90.00th=[ 182], 95.00th=[ 211], | 99.00th=[ 257], 99.50th=[ 266], 99.90th=[ 296], 99.95th=[ 326], | 99.99th=[ 330] bw ( KiB/s): min= 279, max= 640, per=25.12%, avg=450.32, stdev=79.61, samples=44 iops : min= 69, max= 160, avg=112.23, stdev=19.93, samples=44 lat (msec) : 20=0.04%, 50=0.20%, 100=5.20%, 250=93.05%, 500=1.52% cpu : usr=0.28%, sys=1.55%, ctx=3014, 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=180605: Mon Aug 17 11:49:46 2026 write: IOPS=112, BW=449KiB/s (460kB/s)(10.0MiB/22802msec); 0 zone resets slat (usec): min=36, max=12257, avg=195.90, stdev=555.76 clat (msec): min=27, max=264, avg=141.45, stdev=32.18 lat (msec): min=28, max=264, avg=141.65, stdev=32.18 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 121], | 30.00th=[ 127], 40.00th=[ 133], 50.00th=[ 138], 60.00th=[ 142], | 70.00th=[ 146], 80.00th=[ 157], 90.00th=[ 180], 95.00th=[ 218], | 99.00th=[ 253], 99.50th=[ 262], 99.90th=[ 264], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 233, max= 640, per=25.04%, avg=448.96, stdev=86.82, samples=45 iops : min= 58, max= 160, avg=111.89, stdev=21.66, samples=45 lat (msec) : 50=0.12%, 100=5.55%, 250=92.66%, 500=1.68% cpu : usr=0.18%, sys=1.09%, ctx=1987, 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=180606: Mon Aug 17 11:49:46 2026 write: IOPS=112, BW=448KiB/s (459kB/s)(10.0MiB/22834msec); 0 zone resets slat (usec): min=35, max=24175, avg=208.60, stdev=754.92 clat (msec): min=17, max=260, avg=141.72, stdev=31.50 lat (msec): min=18, max=260, avg=141.93, stdev=31.54 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 102], 10.00th=[ 110], 20.00th=[ 122], | 30.00th=[ 128], 40.00th=[ 132], 50.00th=[ 136], 60.00th=[ 140], | 70.00th=[ 146], 80.00th=[ 159], 90.00th=[ 182], 95.00th=[ 207], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 259], | 99.99th=[ 262] bw ( KiB/s): min= 234, max= 648, per=24.95%, avg=447.31, stdev=93.03, samples=45 iops : min= 58, max= 162, avg=111.47, stdev=23.24, samples=45 lat (msec) : 20=0.04%, 50=0.04%, 100=4.34%, 250=94.77%, 500=0.82% cpu : usr=0.18%, sys=1.08%, ctx=1624, 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=1794KiB/s (1837kB/s), 448KiB/s-451KiB/s (459kB/s-462kB/s), io=40.0MiB (41.9MB), run=22706-22834msec 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=180622: Mon Aug 17 11:50:30 2026 read: IOPS=38, BW=153KiB/s (156kB/s)(5048KiB/33061msec) slat (usec): min=72, max=76866, avg=15051.59, stdev=8446.05 clat (msec): min=36, max=365, avg=193.03, stdev=45.04 lat (msec): min=36, max=389, avg=208.08, stdev=46.42 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 20, max= 239, per=24.91%, avg=150.98, stdev=38.08, samples=65 iops : min= 5, max= 59, avg=37.25, stdev= 9.47, samples=65 write: IOPS=39, BW=157KiB/s (161kB/s)(5192KiB/33061msec); 0 zone resets slat (usec): min=40, max=18016, avg=342.95, stdev=1027.67 clat (msec): min=36, max=388, avg=200.22, stdev=43.29 lat (msec): min=36, max=389, avg=200.57, stdev=43.27 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 27, max= 214, per=24.67%, avg=155.65, stdev=37.16, samples=65 iops : min= 6, max= 53, avg=38.43, stdev= 9.32, samples=65 lat (msec) : 50=0.23%, 100=0.94%, 250=89.06%, 500=9.77% cpu : usr=0.25%, sys=2.25%, ctx=4339, 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=180623: Mon Aug 17 11:50:30 2026 read: IOPS=37, BW=152KiB/s (156kB/s)(4976KiB/32762msec) slat (usec): min=2713, max=67661, avg=14854.30, stdev=8113.68 clat (msec): min=14, max=371, avg=192.86, stdev=45.29 lat (msec): min=41, max=381, avg=207.72, stdev=46.66 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 34, max= 238, per=24.94%, avg=151.12, stdev=35.13, samples=64 iops : min= 8, max= 59, avg=37.28, stdev= 8.81, samples=64 write: IOPS=40, BW=161KiB/s (165kB/s)(5264KiB/32762msec); 0 zone resets slat (usec): min=49, max=16087, avg=298.79, stdev=855.24 clat (msec): min=47, max=392, avg=198.34, stdev=43.50 lat (msec): min=47, max=393, avg=198.65, stdev=43.50 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 78, max= 247, per=25.48%, avg=160.75, stdev=37.46, samples=64 iops : min= 19, max= 61, avg=39.70, stdev= 9.30, samples=64 lat (msec) : 20=0.04%, 50=0.08%, 100=0.43%, 250=89.02%, 500=10.43% cpu : usr=0.25%, sys=2.09%, ctx=4443, 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=180624: Mon Aug 17 11:50:30 2026 read: IOPS=37, BW=152KiB/s (156kB/s)(4984KiB/32800msec) slat (usec): min=88, max=57252, avg=14794.88, stdev=8447.69 clat (msec): min=27, max=391, avg=195.08, stdev=46.10 lat (msec): min=32, max=406, avg=209.89, stdev=47.67 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 79, max= 227, per=25.00%, avg=151.52, stdev=32.32, samples=64 iops : min= 19, max= 56, avg=37.39, stdev= 8.09, samples=64 write: IOPS=40, BW=160KiB/s (164kB/s)(5256KiB/32800msec); 0 zone resets slat (usec): min=37, max=13062, avg=282.73, stdev=756.15 clat (msec): min=75, max=357, avg=199.32, stdev=42.68 lat (msec): min=75, max=360, avg=199.60, stdev=42.71 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 71, max= 239, per=25.15%, avg=158.72, stdev=39.44, samples=64 iops : min= 17, max= 59, avg=39.20, stdev= 9.82, samples=64 lat (msec) : 50=0.16%, 100=0.23%, 250=88.98%, 500=10.62% cpu : usr=0.23%, sys=2.13%, ctx=4260, 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=180625: Mon Aug 17 11:50:30 2026 read: IOPS=38, BW=154KiB/s (157kB/s)(5060KiB/32918msec) slat (usec): min=2868, max=87567, avg=14943.83, stdev=8395.59 clat (msec): min=35, max=364, avg=192.00, stdev=43.10 lat (msec): min=56, max=384, avg=206.95, stdev=44.79 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 13, max= 231, per=25.28%, avg=153.18, stdev=38.47, samples=65 iops : min= 3, max= 57, avg=37.82, stdev= 9.64, samples=65 write: IOPS=39, BW=157KiB/s (161kB/s)(5180KiB/32918msec); 0 zone resets slat (usec): min=50, max=18387, avg=309.76, stdev=932.20 clat (msec): min=56, max=431, avg=199.84, stdev=43.15 lat (msec): min=56, max=431, avg=200.15, stdev=43.15 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 34, max= 222, per=24.78%, avg=156.34, stdev=35.48, samples=65 iops : min= 8, max= 55, avg=38.60, stdev= 8.85, samples=65 lat (msec) : 50=0.04%, 100=0.55%, 250=89.45%, 500=9.96% cpu : usr=0.22%, sys=1.96%, ctx=4136, 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=607KiB/s (622kB/s), 152KiB/s-154KiB/s (156kB/s-157kB/s), io=19.6MiB (20.5MB), run=32762-33061msec WRITE: bw=632KiB/s (647kB/s), 157KiB/s-161KiB/s (161kB/s-165kB/s), io=20.4MiB (21.4MB), run=32762-33061msec 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=180635: Mon Aug 17 11:50:41 2026 read: IOPS=1, BW=75.8MiB/s (79.4MB/s)(40.0MiB/528msec) slat (nsec): min=28503k, max=28503k, avg=28502709.00, stdev= 0.00 clat (nsec): min=482721k, max=482721k, avg=482720717.00, stdev= 0.00 lat (nsec): min=511228k, max=511228k, avg=511227729.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.28%, ctx=8, 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=75.8MiB/s (79.4MB/s), 75.8MiB/s-75.8MiB/s (79.4MB/s-79.4MB/s), io=40.0MiB (41.9MB), run=528-528msec 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