== sanity test 398c: run fio to test AIO ================= 01:35:00 (1788845700) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.536722 s, 78.1 MB/s osc.lustre-OST0000-osc-ffff8f7770339000.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=179402: Tue Sep 8 01:35:34 2026 write: IOPS=108, BW=433KiB/s (443kB/s)(10.0MiB/23666msec); 0 zone resets slat (usec): min=21, max=21072, avg=158.54, stdev=667.29 clat (msec): min=16, max=303, avg=147.03, stdev=36.89 lat (msec): min=17, max=303, avg=147.19, stdev=36.90 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 102], 10.00th=[ 108], 20.00th=[ 117], | 30.00th=[ 125], 40.00th=[ 132], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 159], 80.00th=[ 171], 90.00th=[ 197], 95.00th=[ 222], | 99.00th=[ 247], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 305] bw ( KiB/s): min= 247, max= 637, per=24.98%, avg=432.15, stdev=101.33, samples=46 iops : min= 61, max= 159, avg=107.72, stdev=25.46, samples=46 lat (msec) : 20=0.04%, 50=0.16%, 100=3.20%, 250=95.62%, 500=0.98% cpu : usr=0.16%, sys=0.97%, ctx=2164, 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=179403: Tue Sep 8 01:35:34 2026 write: IOPS=108, BW=433KiB/s (443kB/s)(10.0MiB/23646msec); 0 zone resets slat (usec): min=21, max=13135, avg=157.91, stdev=602.54 clat (msec): min=19, max=326, avg=146.88, stdev=35.83 lat (msec): min=19, max=326, avg=147.04, stdev=35.85 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 103], 10.00th=[ 108], 20.00th=[ 117], | 30.00th=[ 126], 40.00th=[ 133], 50.00th=[ 142], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 171], 90.00th=[ 197], 95.00th=[ 218], | 99.00th=[ 247], 99.50th=[ 317], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 135, max= 637, per=24.99%, avg=432.33, stdev=102.12, samples=46 iops : min= 33, max= 159, avg=107.76, stdev=25.61, samples=46 lat (msec) : 20=0.04%, 100=2.81%, 250=96.33%, 500=0.82% cpu : usr=0.18%, sys=0.92%, ctx=2003, 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=179404: Tue Sep 8 01:35:34 2026 write: IOPS=108, BW=433KiB/s (443kB/s)(10.0MiB/23663msec); 0 zone resets slat (usec): min=20, max=13153, avg=141.14, stdev=548.88 clat (msec): min=17, max=286, avg=146.92, stdev=36.02 lat (msec): min=17, max=286, avg=147.06, stdev=36.04 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 104], 10.00th=[ 108], 20.00th=[ 117], | 30.00th=[ 126], 40.00th=[ 132], 50.00th=[ 142], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 174], 90.00th=[ 197], 95.00th=[ 220], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 216, max= 638, per=24.94%, avg=431.48, stdev=95.10, samples=46 iops : min= 54, max= 159, avg=107.54, stdev=23.81, samples=46 lat (msec) : 20=0.04%, 50=0.04%, 100=2.23%, 250=96.25%, 500=1.45% cpu : usr=0.19%, sys=0.85%, ctx=1395, 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=179405: Tue Sep 8 01:35:34 2026 write: IOPS=108, BW=436KiB/s (446kB/s)(10.0MiB/23489msec); 0 zone resets slat (usec): min=20, max=14982, avg=197.25, stdev=716.39 clat (msec): min=27, max=315, avg=146.30, stdev=37.32 lat (msec): min=27, max=315, avg=146.50, stdev=37.30 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 103], 10.00th=[ 109], 20.00th=[ 116], | 30.00th=[ 124], 40.00th=[ 130], 50.00th=[ 138], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 171], 90.00th=[ 201], 95.00th=[ 218], | 99.00th=[ 264], 99.50th=[ 296], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 317] bw ( KiB/s): min= 231, max= 624, per=25.23%, avg=436.52, stdev=90.57, samples=46 iops : min= 57, max= 156, avg=108.78, stdev=22.73, samples=46 lat (msec) : 50=0.35%, 100=3.44%, 250=94.73%, 500=1.48% cpu : usr=0.22%, sys=1.19%, ctx=3256, 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=1731KiB/s (1772kB/s), 433KiB/s-436KiB/s (443kB/s-446kB/s), io=40.0MiB (41.9MB), run=23489-23666msec 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=179419: Tue Sep 8 01:36:15 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5048KiB/32186msec) slat (usec): min=37, max=80206, avg=13910.32, stdev=8860.78 clat (msec): min=48, max=365, avg=192.20, stdev=54.92 lat (msec): min=53, max=389, avg=206.12, stdev=57.28 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 128], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 87, max= 247, per=25.18%, avg=155.89, stdev=36.48, samples=63 iops : min= 21, max= 61, avg=38.46, stdev= 9.14, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5192KiB/32186msec); 0 zone resets slat (usec): min=25, max=9903, avg=183.99, stdev=552.37 clat (msec): min=84, max=342, avg=195.16, stdev=51.55 lat (msec): min=84, max=342, avg=195.34, stdev=51.56 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 116], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 56, max= 295, per=25.00%, avg=160.98, stdev=48.06, samples=63 iops : min= 14, max= 73, avg=39.75, stdev=12.02, samples=63 lat (msec) : 50=0.04%, 100=1.99%, 250=82.89%, 500=15.08% cpu : usr=0.25%, sys=1.67%, ctx=4421, 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=179420: Tue Sep 8 01:36:15 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4976KiB/32136msec) slat (usec): min=2548, max=60753, avg=14093.35, stdev=8627.02 clat (msec): min=22, max=375, avg=190.20, stdev=53.84 lat (msec): min=45, max=386, avg=204.30, stdev=56.11 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 80, max= 287, per=24.92%, avg=154.25, stdev=37.37, samples=63 iops : min= 20, max= 71, avg=38.08, stdev= 9.33, samples=63 write: IOPS=40, BW=164KiB/s (168kB/s)(5264KiB/32136msec); 0 zone resets slat (usec): min=30, max=13160, avg=165.61, stdev=578.72 clat (msec): min=35, max=441, avg=194.53, stdev=52.94 lat (msec): min=35, max=442, avg=194.70, stdev=52.96 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 414], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 79, max= 280, per=25.42%, avg=163.70, stdev=48.04, samples=63 iops : min= 19, max= 70, avg=40.44, stdev=11.98, samples=63 lat (msec) : 50=0.08%, 100=1.72%, 250=83.83%, 500=14.38% cpu : usr=0.27%, sys=1.56%, ctx=4153, 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=179421: Tue Sep 8 01:36:15 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4984KiB/32402msec) slat (msec): min=2, max=102, avg=14.00, stdev= 8.68 clat (msec): min=37, max=362, avg=190.72, stdev=53.21 lat (msec): min=55, max=426, avg=204.72, stdev=55.49 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 112], 10.00th=[ 128], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 79, max= 263, per=24.77%, avg=153.34, stdev=45.78, samples=64 iops : min= 19, max= 65, avg=37.84, stdev=11.43, samples=64 write: IOPS=40, BW=162KiB/s (166kB/s)(5256KiB/32402msec); 0 zone resets slat (usec): min=24, max=37993, avg=215.87, stdev=1226.26 clat (msec): min=48, max=351, avg=196.62, stdev=51.94 lat (msec): min=48, max=353, avg=196.84, stdev=52.01 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 116], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 79, max= 271, per=24.98%, avg=160.86, stdev=44.97, samples=64 iops : min= 19, max= 67, avg=39.70, stdev=11.23, samples=64 lat (msec) : 50=0.12%, 100=2.19%, 250=82.77%, 500=14.92% cpu : usr=0.22%, sys=1.68%, ctx=4448, 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=179422: Tue Sep 8 01:36:15 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(5060KiB/32402msec) slat (usec): min=49, max=82924, avg=14040.52, stdev=8578.70 clat (msec): min=33, max=364, avg=190.51, stdev=53.82 lat (msec): min=47, max=405, avg=204.55, stdev=56.13 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 72, max= 248, per=25.15%, avg=155.66, stdev=37.50, samples=64 iops : min= 18, max= 62, avg=38.42, stdev= 9.33, samples=64 write: IOPS=39, BW=160KiB/s (164kB/s)(5180KiB/32402msec); 0 zone resets slat (usec): min=32, max=13213, avg=189.09, stdev=619.85 clat (msec): min=84, max=355, avg=196.35, stdev=50.79 lat (msec): min=84, max=355, avg=196.54, stdev=50.77 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 224], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 296], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 78, max= 327, per=24.60%, avg=158.45, stdev=45.74, samples=64 iops : min= 19, max= 81, avg=39.09, stdev=11.43, samples=64 lat (msec) : 50=0.08%, 100=1.52%, 250=83.98%, 500=14.41% cpu : usr=0.23%, sys=1.65%, ctx=4175, 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=619KiB/s (634kB/s), 154KiB/s-157KiB/s (158kB/s-161kB/s), io=19.6MiB (20.5MB), run=32136-32402msec WRITE: bw=645KiB/s (660kB/s), 160KiB/s-164KiB/s (164kB/s-168kB/s), io=20.4MiB (21.4MB), run=32136-32402msec 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=179431: Tue Sep 8 01:36:31 2026 read: IOPS=1, BW=66.0MiB/s (69.2MB/s)(40.0MiB/606msec) slat (nsec): min=41733k, max=41733k, avg=41733463.00, stdev= 0.00 clat (nsec): min=540695k, max=540695k, avg=540695483.00, stdev= 0.00 lat (nsec): min=582433k, max=582433k, avg=582432879.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.82%, ctx=10, 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=66.0MiB/s (69.2MB/s), 66.0MiB/s-66.0MiB/s (69.2MB/s-69.2MB/s), io=40.0MiB (41.9MB), run=606-606msec 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