== sanity test 398c: run fio to test AIO ================= 12:24:16 (1772472256) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.604511 s, 69.4 MB/s osc.lustre-OST0000-osc-ffff8dd6c7887800.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=183778: Mon Mar 2 12:24:54 2026 write: IOPS=96, BW=386KiB/s (396kB/s)(10.0MiB/26505msec); 0 zone resets slat (usec): min=22, max=14703, avg=152.88, stdev=537.39 clat (msec): min=23, max=331, avg=165.30, stdev=43.14 lat (msec): min=23, max=331, avg=165.46, stdev=43.14 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 106], 10.00th=[ 122], 20.00th=[ 131], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 184], 80.00th=[ 205], 90.00th=[ 218], 95.00th=[ 239], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 125, max= 526, per=25.12%, avg=385.37, stdev=94.25, samples=52 iops : min= 31, max= 131, avg=95.88, stdev=23.56, samples=52 lat (msec) : 50=0.04%, 100=2.85%, 250=93.28%, 500=3.83% cpu : usr=0.15%, sys=0.84%, ctx=1518, 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=183779: Mon Mar 2 12:24:54 2026 write: IOPS=96, BW=384KiB/s (393kB/s)(10.0MiB/26660msec); 0 zone resets slat (usec): min=22, max=26310, avg=166.82, stdev=707.53 clat (msec): min=24, max=338, avg=165.46, stdev=43.98 lat (msec): min=24, max=338, avg=165.63, stdev=43.98 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 169], | 70.00th=[ 188], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 218, max= 581, per=24.87%, avg=381.50, stdev=88.88, samples=52 iops : min= 54, max= 145, avg=94.92, stdev=22.24, samples=52 lat (msec) : 50=0.43%, 100=1.72%, 250=93.63%, 500=4.22% cpu : usr=0.18%, sys=0.89%, ctx=1849, 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=183780: Mon Mar 2 12:24:54 2026 write: IOPS=96, BW=385KiB/s (394kB/s)(10.0MiB/26592msec); 0 zone resets slat (usec): min=22, max=35705, avg=204.30, stdev=1012.54 clat (msec): min=19, max=347, avg=165.41, stdev=43.81 lat (msec): min=19, max=347, avg=165.62, stdev=43.83 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 148, max= 566, per=25.03%, avg=384.00, stdev=87.78, samples=52 iops : min= 37, max= 141, avg=95.54, stdev=21.94, samples=52 lat (msec) : 20=0.04%, 50=0.16%, 100=1.56%, 250=94.53%, 500=3.71% cpu : usr=0.17%, sys=1.12%, ctx=1920, 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=183781: Mon Mar 2 12:24:54 2026 write: IOPS=95, BW=384KiB/s (393kB/s)(10.0MiB/26689msec); 0 zone resets slat (usec): min=21, max=34578, avg=248.73, stdev=1086.87 clat (msec): min=20, max=349, avg=165.36, stdev=41.69 lat (msec): min=20, max=349, avg=165.62, stdev=41.75 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 122], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 288], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 351] bw ( KiB/s): min= 206, max= 521, per=24.94%, avg=382.58, stdev=82.97, samples=52 iops : min= 51, max= 130, avg=95.21, stdev=20.76, samples=52 lat (msec) : 50=0.23%, 100=2.11%, 250=94.84%, 500=2.81% cpu : usr=0.21%, sys=1.12%, ctx=2399, 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=1535KiB/s (1572kB/s), 384KiB/s-386KiB/s (393kB/s-396kB/s), io=40.0MiB (41.9MB), run=26505-26689msec 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=183795: Mon Mar 2 12:25:36 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(5048KiB/32386msec) slat (usec): min=50, max=184272, avg=16023.13, stdev=10659.30 clat (msec): min=10, max=507, avg=189.16, stdev=51.56 lat (msec): min=18, max=519, avg=205.19, stdev=53.22 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 116], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 489], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 67, max= 232, per=24.89%, avg=154.10, stdev=36.57, samples=63 iops : min= 16, max= 58, avg=38.00, stdev= 9.17, samples=63 write: IOPS=40, BW=160KiB/s (164kB/s)(5192KiB/32386msec); 0 zone resets slat (usec): min=25, max=15167, avg=289.53, stdev=990.50 clat (msec): min=74, max=495, avg=195.72, stdev=49.64 lat (msec): min=74, max=495, avg=196.01, stdev=49.64 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 430], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 45, max= 238, per=24.73%, avg=159.52, stdev=39.84, samples=63 iops : min= 11, max= 59, avg=39.37, stdev=10.03, samples=63 lat (msec) : 20=0.08%, 100=1.72%, 250=87.03%, 500=11.13%, 750=0.04% cpu : usr=0.33%, sys=2.03%, ctx=4383, 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=183796: Mon Mar 2 12:25:36 2026 read: IOPS=38, BW=155KiB/s (158kB/s)(4976KiB/32194msec) slat (usec): min=2798, max=69620, avg=15676.75, stdev=8146.91 clat (msec): min=78, max=361, avg=188.58, stdev=45.20 lat (msec): min=94, max=372, avg=204.27, stdev=46.89 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 45, max= 264, per=24.97%, avg=154.54, stdev=39.21, samples=63 iops : min= 11, max= 66, avg=38.11, stdev= 9.83, samples=63 write: IOPS=40, BW=164KiB/s (167kB/s)(5264KiB/32194msec); 0 zone resets slat (usec): min=32, max=21301, avg=234.72, stdev=913.72 clat (msec): min=30, max=377, avg=195.03, stdev=46.77 lat (msec): min=30, max=377, avg=195.27, stdev=46.77 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 63, max= 262, per=25.42%, avg=163.94, stdev=42.66, samples=63 iops : min= 15, max= 65, avg=40.49, stdev=10.77, samples=63 lat (msec) : 50=0.04%, 100=0.90%, 250=88.63%, 500=10.43% cpu : usr=0.32%, sys=2.01%, ctx=4151, 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=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=183797: Mon Mar 2 12:25:36 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32057msec) slat (usec): min=38, max=61161, avg=15658.45, stdev=8283.23 clat (msec): min=12, max=393, avg=188.73, stdev=48.62 lat (msec): min=12, max=409, avg=204.40, stdev=50.25 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 55, max= 231, per=25.09%, avg=155.32, stdev=35.89, samples=63 iops : min= 13, max= 57, avg=38.35, stdev= 9.07, samples=63 write: IOPS=40, BW=164KiB/s (168kB/s)(5256KiB/32057msec); 0 zone resets slat (usec): min=23, max=12284, avg=249.62, stdev=828.12 clat (msec): min=93, max=388, avg=195.72, stdev=45.37 lat (msec): min=93, max=388, avg=195.98, stdev=45.37 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 363], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 78, max= 268, per=25.26%, avg=162.94, stdev=38.31, samples=63 iops : min= 19, max= 67, avg=40.19, stdev= 9.63, samples=63 lat (msec) : 20=0.27%, 100=0.78%, 250=88.28%, 500=10.66% cpu : usr=0.29%, sys=1.94%, ctx=3984, 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=183798: Mon Mar 2 12:25:36 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(5060KiB/32284msec) slat (usec): min=3357, max=50391, avg=15584.05, stdev=7930.81 clat (msec): min=50, max=366, avg=188.91, stdev=44.33 lat (msec): min=60, max=383, avg=204.51, stdev=45.62 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 63, max= 232, per=25.24%, avg=156.25, stdev=36.18, samples=63 iops : min= 15, max= 58, avg=38.56, stdev= 9.15, samples=63 write: IOPS=40, BW=160KiB/s (164kB/s)(5180KiB/32284msec); 0 zone resets slat (usec): min=31, max=14335, avg=232.48, stdev=750.39 clat (msec): min=95, max=398, avg=195.96, stdev=43.53 lat (msec): min=95, max=398, avg=196.20, stdev=43.53 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 268], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 376], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 73, max= 254, per=24.74%, avg=159.59, stdev=37.13, samples=63 iops : min= 18, max= 63, avg=39.38, stdev= 9.32, samples=63 lat (msec) : 100=0.47%, 250=89.41%, 500=10.12% cpu : usr=0.23%, sys=1.97%, ctx=4086, 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=620KiB/s (635kB/s), 155KiB/s-157KiB/s (158kB/s-160kB/s), io=19.6MiB (20.5MB), run=32057-32386msec WRITE: bw=645KiB/s (661kB/s), 160KiB/s-164KiB/s (164kB/s-168kB/s), io=20.4MiB (21.4MB), run=32057-32386msec 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=183809: Mon Mar 2 12:25:47 2026 read: IOPS=1, BW=58.9MiB/s (61.8MB/s)(40.0MiB/679msec) slat (nsec): min=36613k, max=36613k, avg=36612730.00, stdev= 0.00 clat (nsec): min=620535k, max=620535k, avg=620534830.00, stdev= 0.00 lat (nsec): min=657152k, max=657152k, avg=657151863.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.06%, ctx=11, 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=58.9MiB/s (61.8MB/s), 58.9MiB/s-58.9MiB/s (61.8MB/s-61.8MB/s), io=40.0MiB (41.9MB), run=679-679msec 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