== sanity test 398c: run fio to test AIO ================= 22:26:18 (1767324378) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.248346 s, 169 MB/s osc.lustre-OST0000-osc-ffff9fd84802c000.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=187512: Thu Jan 1 22:26:39 2026 write: IOPS=161, BW=645KiB/s (661kB/s)(10.0MiB/15874msec); 0 zone resets slat (usec): min=22, max=4730, avg=126.91, stdev=310.00 clat (msec): min=20, max=183, avg=98.75, stdev=24.47 lat (msec): min=20, max=183, avg=98.88, stdev=24.48 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 80], | 30.00th=[ 87], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 105], | 70.00th=[ 112], 80.00th=[ 120], 90.00th=[ 130], 95.00th=[ 138], | 99.00th=[ 161], 99.50th=[ 163], 99.90th=[ 180], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 504, max= 1072, per=24.97%, avg=644.32, stdev=121.95, samples=31 iops : min= 126, max= 268, avg=160.84, stdev=30.59, samples=31 lat (msec) : 50=3.12%, 100=50.90%, 250=45.98% cpu : usr=0.24%, sys=1.17%, ctx=2077, 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=187513: Thu Jan 1 22:26:39 2026 write: IOPS=161, BW=647KiB/s (662kB/s)(10.0MiB/15829msec); 0 zone resets slat (usec): min=21, max=13018, avg=144.63, stdev=431.91 clat (msec): min=8, max=240, avg=98.49, stdev=25.32 lat (msec): min=8, max=240, avg=98.64, stdev=25.33 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 87], 40.00th=[ 92], 50.00th=[ 97], 60.00th=[ 104], | 70.00th=[ 112], 80.00th=[ 118], 90.00th=[ 128], 95.00th=[ 138], | 99.00th=[ 165], 99.50th=[ 167], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 241] bw ( KiB/s): min= 507, max= 1078, per=25.08%, avg=647.00, stdev=122.93, samples=31 iops : min= 126, max= 269, avg=161.48, stdev=30.77, samples=31 lat (msec) : 10=0.04%, 50=3.16%, 100=51.88%, 250=44.92% cpu : usr=0.28%, sys=1.36%, ctx=2181, 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=187514: Thu Jan 1 22:26:39 2026 write: IOPS=161, BW=645KiB/s (661kB/s)(10.0MiB/15872msec); 0 zone resets slat (usec): min=22, max=10289, avg=165.07, stdev=443.64 clat (msec): min=11, max=235, avg=98.66, stdev=24.93 lat (msec): min=21, max=236, avg=98.83, stdev=24.93 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 71], 20.00th=[ 81], | 30.00th=[ 86], 40.00th=[ 92], 50.00th=[ 99], 60.00th=[ 105], | 70.00th=[ 111], 80.00th=[ 118], 90.00th=[ 128], 95.00th=[ 138], | 99.00th=[ 169], 99.50th=[ 180], 99.90th=[ 203], 99.95th=[ 222], | 99.99th=[ 236] bw ( KiB/s): min= 504, max= 1075, per=24.96%, avg=643.90, stdev=119.12, samples=31 iops : min= 126, max= 268, avg=160.71, stdev=29.77, samples=31 lat (msec) : 20=0.04%, 50=2.73%, 100=50.31%, 250=46.91% cpu : usr=0.29%, sys=1.54%, ctx=2688, 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=187515: Thu Jan 1 22:26:39 2026 write: IOPS=163, BW=653KiB/s (668kB/s)(10.0MiB/15690msec); 0 zone resets slat (usec): min=23, max=7961, avg=182.06, stdev=409.62 clat (msec): min=10, max=192, avg=97.77, stdev=24.90 lat (msec): min=10, max=193, avg=97.95, stdev=24.89 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 56], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 86], 40.00th=[ 92], 50.00th=[ 99], 60.00th=[ 104], | 70.00th=[ 111], 80.00th=[ 120], 90.00th=[ 130], 95.00th=[ 138], | 99.00th=[ 155], 99.50th=[ 163], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 468, max= 1199, per=25.10%, avg=647.68, stdev=138.64, samples=31 iops : min= 117, max= 299, avg=161.68, stdev=34.63, samples=31 lat (msec) : 20=0.16%, 50=3.91%, 100=50.66%, 250=45.27% cpu : usr=0.29%, sys=1.70%, ctx=2990, 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=2580KiB/s (2642kB/s), 645KiB/s-653KiB/s (661kB/s-668kB/s), io=40.0MiB (41.9MB), run=15690-15874msec 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=187527: Thu Jan 1 22:26:57 2026 read: IOPS=93, BW=375KiB/s (384kB/s)(5048KiB/13451msec) slat (usec): min=88, max=21117, avg=6045.88, stdev=2875.65 clat (msec): min=8, max=164, avg=78.70, stdev=18.08 lat (msec): min=16, max=166, avg=84.75, stdev=18.58 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 69], 40.00th=[ 72], 50.00th=[ 78], 60.00th=[ 82], | 70.00th=[ 87], 80.00th=[ 92], 90.00th=[ 102], 95.00th=[ 111], | 99.00th=[ 128], 99.50th=[ 144], 99.90th=[ 161], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 253, max= 488, per=25.02%, avg=373.04, stdev=63.89, samples=26 iops : min= 63, max= 122, avg=92.92, stdev=16.02, samples=26 write: IOPS=96, BW=386KiB/s (395kB/s)(5192KiB/13451msec); 0 zone resets slat (usec): min=31, max=5091, avg=174.02, stdev=370.10 clat (msec): min=27, max=138, avg=81.44, stdev=15.77 lat (msec): min=27, max=138, avg=81.62, stdev=15.76 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 58], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 73], 40.00th=[ 77], 50.00th=[ 81], 60.00th=[ 86], | 70.00th=[ 90], 80.00th=[ 95], 90.00th=[ 103], 95.00th=[ 109], | 99.00th=[ 122], 99.50th=[ 127], 99.90th=[ 133], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 296, max= 528, per=24.67%, avg=383.19, stdev=52.14, samples=26 iops : min= 74, max= 132, avg=95.46, stdev=13.03, samples=26 lat (msec) : 10=0.04%, 50=1.45%, 100=86.99%, 250=11.52% cpu : usr=0.40%, sys=3.21%, ctx=4632, 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=187528: Thu Jan 1 22:26:57 2026 read: IOPS=93, BW=373KiB/s (382kB/s)(4976KiB/13340msec) slat (usec): min=1690, max=22649, avg=6007.20, stdev=2846.89 clat (msec): min=8, max=146, avg=78.34, stdev=16.59 lat (msec): min=16, max=150, avg=84.35, stdev=17.19 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 65], | 30.00th=[ 69], 40.00th=[ 73], 50.00th=[ 78], 60.00th=[ 81], | 70.00th=[ 86], 80.00th=[ 92], 90.00th=[ 101], 95.00th=[ 109], | 99.00th=[ 123], 99.50th=[ 125], 99.90th=[ 138], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 269, max= 472, per=24.95%, avg=371.96, stdev=55.45, samples=26 iops : min= 67, max= 118, avg=92.65, stdev=13.94, samples=26 write: IOPS=98, BW=395KiB/s (404kB/s)(5264KiB/13340msec); 0 zone resets slat (usec): min=25, max=4531, avg=161.12, stdev=298.60 clat (msec): min=43, max=137, avg=80.99, stdev=14.97 lat (msec): min=43, max=137, avg=81.15, stdev=14.98 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 58], 10.00th=[ 63], 20.00th=[ 68], | 30.00th=[ 73], 40.00th=[ 78], 50.00th=[ 81], 60.00th=[ 85], | 70.00th=[ 89], 80.00th=[ 94], 90.00th=[ 101], 95.00th=[ 106], | 99.00th=[ 122], 99.50th=[ 126], 99.90th=[ 134], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 280, max= 495, per=25.49%, avg=395.92, stdev=58.21, samples=26 iops : min= 70, max= 123, avg=98.62, stdev=14.50, samples=26 lat (msec) : 10=0.04%, 20=0.04%, 50=1.17%, 100=88.24%, 250=10.51% cpu : usr=0.39%, sys=3.22%, ctx=4475, 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=187529: Thu Jan 1 22:26:57 2026 read: IOPS=93, BW=372KiB/s (381kB/s)(4984KiB/13396msec) slat (usec): min=1708, max=23888, avg=6091.09, stdev=2996.64 clat (msec): min=12, max=138, avg=77.97, stdev=17.08 lat (msec): min=17, max=147, avg=84.07, stdev=17.67 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 72], 50.00th=[ 77], 60.00th=[ 81], | 70.00th=[ 86], 80.00th=[ 93], 90.00th=[ 102], 95.00th=[ 110], | 99.00th=[ 126], 99.50th=[ 129], 99.90th=[ 138], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 261, max= 487, per=25.00%, avg=372.77, stdev=65.01, samples=26 iops : min= 65, max= 121, avg=92.81, stdev=16.20, samples=26 write: IOPS=98, BW=392KiB/s (402kB/s)(5256KiB/13396msec); 0 zone resets slat (usec): min=24, max=6167, avg=161.25, stdev=301.45 clat (msec): min=45, max=146, avg=82.00, stdev=16.24 lat (msec): min=45, max=146, avg=82.17, stdev=16.24 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 58], 10.00th=[ 62], 20.00th=[ 68], | 30.00th=[ 73], 40.00th=[ 78], 50.00th=[ 81], 60.00th=[ 86], | 70.00th=[ 90], 80.00th=[ 95], 90.00th=[ 104], 95.00th=[ 112], | 99.00th=[ 124], 99.50th=[ 138], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 295, max= 488, per=25.13%, avg=390.19, stdev=52.76, samples=26 iops : min= 73, max= 122, avg=97.19, stdev=13.30, samples=26 lat (msec) : 20=0.08%, 50=1.17%, 100=86.68%, 250=12.07% cpu : usr=0.43%, sys=2.96%, ctx=4569, 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=187530: Thu Jan 1 22:26:57 2026 read: IOPS=95, BW=382KiB/s (391kB/s)(5060KiB/13235msec) slat (usec): min=44, max=21607, avg=6036.72, stdev=2920.51 clat (msec): min=7, max=129, avg=78.13, stdev=17.08 lat (msec): min=7, max=136, avg=84.17, stdev=17.66 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 65], | 30.00th=[ 69], 40.00th=[ 73], 50.00th=[ 78], 60.00th=[ 82], | 70.00th=[ 87], 80.00th=[ 93], 90.00th=[ 102], 95.00th=[ 109], | 99.00th=[ 121], 99.50th=[ 122], 99.90th=[ 125], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 280, max= 468, per=25.60%, avg=381.73, stdev=49.59, samples=26 iops : min= 70, max= 117, avg=95.12, stdev=12.44, samples=26 write: IOPS=97, BW=391KiB/s (401kB/s)(5180KiB/13235msec); 0 zone resets slat (usec): min=26, max=3450, avg=156.51, stdev=241.63 clat (msec): min=24, max=143, avg=80.90, stdev=15.08 lat (msec): min=25, max=143, avg=81.06, stdev=15.08 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 69], | 30.00th=[ 73], 40.00th=[ 77], 50.00th=[ 81], 60.00th=[ 84], | 70.00th=[ 88], 80.00th=[ 93], 90.00th=[ 102], 95.00th=[ 108], | 99.00th=[ 121], 99.50th=[ 126], 99.90th=[ 133], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 293, max= 496, per=25.18%, avg=391.00, stdev=51.87, samples=26 iops : min= 73, max= 124, avg=97.38, stdev=13.02, samples=26 lat (msec) : 10=0.08%, 20=0.16%, 50=1.29%, 100=87.58%, 250=10.90% cpu : usr=0.36%, sys=3.00%, ctx=4539, 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=1492KiB/s (1528kB/s), 372KiB/s-382KiB/s (381kB/s-391kB/s), io=19.6MiB (20.5MB), run=13235-13451msec WRITE: bw=1553KiB/s (1590kB/s), 386KiB/s-395KiB/s (395kB/s-404kB/s), io=20.4MiB (21.4MB), run=13235-13451msec 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=187536: Thu Jan 1 22:27:02 2026 read: IOPS=3, BW=159MiB/s (167MB/s)(40.0MiB/251msec) slat (nsec): min=17758k, max=17758k, avg=17758267.00, stdev= 0.00 clat (nsec): min=218719k, max=218719k, avg=218718706.00, stdev= 0.00 lat (nsec): min=236482k, max=236482k, avg=236481892.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 220], 95.00th=[ 220], | 99.00th=[ 220], 99.50th=[ 220], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.40%, ctx=12, 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=159MiB/s (167MB/s), 159MiB/s-159MiB/s (167MB/s-167MB/s), io=40.0MiB (41.9MB), run=251-251msec 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