== sanity test 398c: run fio to test AIO ================= 23:18:22 (1788751102) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.514552 s, 81.5 MB/s osc.lustre-OST0000-osc-ffff8a90c292a800.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=180394: Sun Sep 6 23:19:00 2026 write: IOPS=100, BW=404KiB/s (414kB/s)(10.0MiB/25358msec); 0 zone resets slat (usec): min=23, max=21157, avg=256.82, stdev=908.34 clat (msec): min=21, max=325, avg=158.08, stdev=39.60 lat (msec): min=21, max=326, avg=158.34, stdev=39.58 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 99], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 169], 80.00th=[ 186], 90.00th=[ 207], 95.00th=[ 232], | 99.00th=[ 288], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 254, max= 638, per=24.94%, avg=401.96, stdev=78.30, samples=50 iops : min= 63, max= 159, avg=100.10, stdev=19.60, samples=50 lat (msec) : 50=0.16%, 100=5.39%, 250=91.80%, 500=2.66% cpu : usr=0.22%, sys=1.25%, ctx=2376, 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=180395: Sun Sep 6 23:19:00 2026 write: IOPS=100, BW=403KiB/s (413kB/s)(10.0MiB/25394msec); 0 zone resets slat (usec): min=22, max=21177, avg=215.64, stdev=825.55 clat (msec): min=25, max=316, avg=157.74, stdev=39.43 lat (msec): min=25, max=316, avg=157.95, stdev=39.40 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 104], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 111, max= 640, per=24.86%, avg=400.78, stdev=84.62, samples=50 iops : min= 27, max= 160, avg=99.82, stdev=21.16, samples=50 lat (msec) : 50=0.20%, 100=4.10%, 250=92.77%, 500=2.93% cpu : usr=0.31%, sys=1.04%, ctx=1642, 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=180396: Sun Sep 6 23:19:00 2026 write: IOPS=100, BW=403KiB/s (413kB/s)(10.0MiB/25399msec); 0 zone resets slat (usec): min=23, max=15706, avg=262.03, stdev=872.41 clat (msec): min=26, max=326, avg=157.74, stdev=39.76 lat (msec): min=27, max=326, avg=158.00, stdev=39.77 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 101], 10.00th=[ 116], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 226], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 136, max= 638, per=24.85%, avg=400.52, stdev=88.67, samples=50 iops : min= 34, max= 159, avg=99.76, stdev=22.17, samples=50 lat (msec) : 50=0.31%, 100=4.65%, 250=91.99%, 500=3.05% cpu : usr=0.24%, sys=1.31%, ctx=2497, 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=180397: Sun Sep 6 23:19:00 2026 write: IOPS=100, BW=403KiB/s (413kB/s)(10.0MiB/25398msec); 0 zone resets slat (usec): min=21, max=10786, avg=193.66, stdev=640.12 clat (msec): min=13, max=340, avg=157.88, stdev=39.94 lat (msec): min=13, max=340, avg=158.08, stdev=39.93 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 105], 10.00th=[ 115], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 186], 90.00th=[ 211], 95.00th=[ 230], | 99.00th=[ 279], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 330], | 99.99th=[ 342] bw ( KiB/s): min= 224, max= 637, per=24.83%, avg=400.22, stdev=82.05, samples=50 iops : min= 56, max= 159, avg=99.68, stdev=20.49, samples=50 lat (msec) : 20=0.04%, 50=0.16%, 100=3.32%, 250=92.93%, 500=3.55% cpu : usr=0.22%, sys=0.96%, ctx=1667, 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=1613KiB/s (1651kB/s), 403KiB/s-404KiB/s (413kB/s-414kB/s), io=40.0MiB (41.9MB), run=25358-25399msec 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=180411: Sun Sep 6 23:19:41 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5048KiB/30619msec) slat (usec): min=3030, max=68448, avg=14138.67, stdev=8186.96 clat (msec): min=28, max=457, avg=180.67, stdev=46.10 lat (msec): min=37, max=478, avg=194.81, stdev=47.55 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 426], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 78, max= 263, per=25.21%, avg=164.88, stdev=32.97, samples=60 iops : min= 19, max= 65, avg=40.77, stdev= 8.26, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5192KiB/30619msec); 0 zone resets slat (usec): min=25, max=13959, avg=298.98, stdev=933.38 clat (msec): min=88, max=426, avg=184.32, stdev=43.26 lat (msec): min=88, max=426, avg=184.62, stdev=43.26 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 401], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 62, max= 278, per=24.94%, avg=169.87, stdev=41.36, samples=60 iops : min= 15, max= 69, avg=42.00, stdev=10.39, samples=60 lat (msec) : 50=0.12%, 100=0.70%, 250=92.03%, 500=7.15% cpu : usr=0.33%, sys=2.00%, ctx=4241, 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=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=180412: Sun Sep 6 23:19:41 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(4976KiB/30438msec) slat (usec): min=2621, max=53366, avg=14436.42, stdev=8280.50 clat (msec): min=43, max=467, avg=179.23, stdev=45.25 lat (msec): min=73, max=478, avg=193.69, stdev=47.12 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 409], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 71, max= 264, per=24.93%, avg=163.07, stdev=39.16, samples=60 iops : min= 17, max= 66, avg=40.30, stdev= 9.84, samples=60 write: IOPS=43, BW=173KiB/s (177kB/s)(5264KiB/30438msec); 0 zone resets slat (usec): min=28, max=12742, avg=240.01, stdev=709.69 clat (msec): min=63, max=467, avg=183.92, stdev=42.81 lat (msec): min=63, max=467, avg=184.16, stdev=42.80 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 124], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 384], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 94, max= 263, per=25.43%, avg=173.17, stdev=39.47, samples=60 iops : min= 23, max= 65, avg=42.83, stdev= 9.90, samples=60 lat (msec) : 50=0.04%, 100=1.25%, 250=91.80%, 500=6.91% cpu : usr=0.32%, sys=2.19%, ctx=4419, 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=180413: Sun Sep 6 23:19:41 2026 read: IOPS=40, BW=163KiB/s (166kB/s)(4984KiB/30656msec) slat (msec): min=2, max=222, avg=14.46, stdev=10.11 clat (msec): min=13, max=417, avg=181.32, stdev=46.93 lat (msec): min=19, max=432, avg=195.80, stdev=48.30 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 309], 99.50th=[ 342], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 62, max= 254, per=24.76%, avg=161.92, stdev=37.56, samples=60 iops : min= 15, max= 63, avg=40.00, stdev= 9.39, samples=60 write: IOPS=42, BW=171KiB/s (176kB/s)(5256KiB/30656msec); 0 zone resets slat (usec): min=30, max=13715, avg=280.36, stdev=776.96 clat (msec): min=19, max=424, avg=183.85, stdev=46.41 lat (msec): min=20, max=424, avg=184.13, stdev=46.40 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 388], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 64, max= 288, per=24.92%, avg=169.72, stdev=49.09, samples=60 iops : min= 16, max= 72, avg=41.97, stdev=12.33, samples=60 lat (msec) : 20=0.16%, 50=0.23%, 100=1.56%, 250=90.55%, 500=7.50% cpu : usr=0.24%, sys=2.06%, ctx=4229, 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=180414: Sun Sep 6 23:19:41 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5060KiB/30484msec) slat (usec): min=54, max=62312, avg=14367.78, stdev=8392.14 clat (msec): min=9, max=372, avg=178.60, stdev=45.55 lat (msec): min=35, max=417, avg=192.98, stdev=47.27 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 264], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 111, max= 278, per=25.40%, avg=166.08, stdev=39.47, samples=60 iops : min= 27, max= 69, avg=41.05, stdev= 9.89, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5180KiB/30484msec); 0 zone resets slat (usec): min=24, max=19200, avg=260.74, stdev=825.04 clat (msec): min=41, max=516, avg=187.21, stdev=44.95 lat (msec): min=41, max=516, avg=187.47, stdev=44.96 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 120], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 485], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 79, max= 244, per=24.86%, avg=169.30, stdev=34.92, samples=60 iops : min= 19, max= 61, avg=41.87, stdev= 8.75, samples=60 lat (msec) : 10=0.04%, 50=0.16%, 100=1.02%, 250=91.45%, 500=7.30% lat (msec) : 750=0.04% cpu : usr=0.32%, sys=2.06%, ctx=4123, 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=655KiB/s (670kB/s), 163KiB/s-166KiB/s (166kB/s-170kB/s), io=19.6MiB (20.5MB), run=30438-30656msec WRITE: bw=681KiB/s (698kB/s), 170KiB/s-173KiB/s (174kB/s-177kB/s), io=20.4MiB (21.4MB), run=30438-30656msec 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=180424: Sun Sep 6 23:19:51 2026 read: IOPS=1, BW=58.7MiB/s (61.6MB/s)(40.0MiB/681msec) slat (nsec): min=40940k, max=40940k, avg=40940355.00, stdev= 0.00 clat (nsec): min=621487k, max=621487k, avg=621487184.00, stdev= 0.00 lat (nsec): min=662432k, max=662432k, avg=662431659.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] lat (msec) : 750=100.00% cpu : usr=0.15%, sys=1.91%, 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=58.7MiB/s (61.6MB/s), 58.7MiB/s-58.7MiB/s (61.6MB/s-61.6MB/s), io=40.0MiB (41.9MB), run=681-681msec 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