== sanity test 398c: run fio to test AIO ================= 20:08:20 (1787875700) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.282243 s, 149 MB/s osc.lustre-OST0000-osc-ffff8f8e10f3f000.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=180217: Thu Aug 27 20:08:51 2026 write: IOPS=108, BW=435KiB/s (446kB/s)(10.0MiB/23530msec); 0 zone resets slat (usec): min=22, max=13539, avg=178.01, stdev=553.98 clat (msec): min=13, max=312, avg=146.56, stdev=40.60 lat (msec): min=13, max=313, avg=146.74, stdev=40.61 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 93], 10.00th=[ 101], 20.00th=[ 113], | 30.00th=[ 124], 40.00th=[ 131], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 178], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 254, max= 718, per=24.95%, avg=432.93, stdev=95.09, samples=46 iops : min= 63, max= 179, avg=107.80, stdev=23.75, samples=46 lat (msec) : 20=0.08%, 50=0.04%, 100=9.73%, 250=88.32%, 500=1.84% cpu : usr=0.19%, sys=1.21%, ctx=2842, 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=180218: Thu Aug 27 20:08:51 2026 write: IOPS=108, BW=434KiB/s (444kB/s)(10.0MiB/23602msec); 0 zone resets slat (usec): min=28, max=18033, avg=208.36, stdev=847.30 clat (msec): min=20, max=301, avg=147.22, stdev=39.92 lat (msec): min=20, max=301, avg=147.43, stdev=39.92 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 104], 20.00th=[ 116], | 30.00th=[ 125], 40.00th=[ 132], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 207], 95.00th=[ 228], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 251, max= 646, per=24.87%, avg=431.57, stdev=90.97, samples=46 iops : min= 62, max= 161, avg=107.48, stdev=22.74, samples=46 lat (msec) : 50=0.12%, 100=8.79%, 250=88.91%, 500=2.19% cpu : usr=0.20%, sys=1.01%, ctx=2907, 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=180219: Thu Aug 27 20:08:51 2026 write: IOPS=108, BW=434KiB/s (444kB/s)(10.0MiB/23603msec); 0 zone resets slat (usec): min=22, max=16003, avg=178.56, stdev=613.28 clat (msec): min=35, max=311, avg=146.97, stdev=39.95 lat (msec): min=35, max=311, avg=147.15, stdev=39.95 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 93], 10.00th=[ 104], 20.00th=[ 116], | 30.00th=[ 125], 40.00th=[ 133], 50.00th=[ 140], 60.00th=[ 146], | 70.00th=[ 157], 80.00th=[ 178], 90.00th=[ 203], 95.00th=[ 232], | 99.00th=[ 255], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 256, max= 654, per=24.77%, avg=429.78, stdev=87.51, samples=46 iops : min= 64, max= 163, avg=107.02, stdev=21.88, samples=46 lat (msec) : 50=0.16%, 100=8.09%, 250=89.77%, 500=1.99% cpu : usr=0.16%, sys=0.94%, ctx=2373, 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=180220: Thu Aug 27 20:08:51 2026 write: IOPS=108, BW=434KiB/s (445kB/s)(10.0MiB/23585msec); 0 zone resets slat (usec): min=22, max=14579, avg=190.48, stdev=724.33 clat (msec): min=26, max=305, avg=147.16, stdev=39.79 lat (msec): min=26, max=305, avg=147.35, stdev=39.80 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 96], 10.00th=[ 104], 20.00th=[ 116], | 30.00th=[ 125], 40.00th=[ 131], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 178], 90.00th=[ 205], 95.00th=[ 230], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 305] bw ( KiB/s): min= 251, max= 638, per=24.91%, avg=432.22, stdev=88.21, samples=46 iops : min= 62, max= 159, avg=107.65, stdev=22.03, samples=46 lat (msec) : 50=0.08%, 100=7.50%, 250=90.35%, 500=2.07% cpu : usr=0.17%, sys=1.17%, ctx=2749, 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=1735KiB/s (1777kB/s), 434KiB/s-435KiB/s (444kB/s-446kB/s), io=40.0MiB (41.9MB), run=23530-23603msec 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=180233: Thu Aug 27 20:09:21 2026 read: IOPS=56, BW=224KiB/s (230kB/s)(5048KiB/22514msec) slat (usec): min=43, max=49317, avg=10161.44, stdev=6182.46 clat (msec): min=22, max=334, avg=132.03, stdev=41.14 lat (msec): min=22, max=343, avg=142.20, stdev=43.65 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 77], 10.00th=[ 86], 20.00th=[ 97], | 30.00th=[ 108], 40.00th=[ 117], 50.00th=[ 127], 60.00th=[ 136], | 70.00th=[ 150], 80.00th=[ 165], 90.00th=[ 190], 95.00th=[ 209], | 99.00th=[ 241], 99.50th=[ 259], 99.90th=[ 309], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 119, max= 348, per=25.45%, avg=222.66, stdev=58.41, samples=44 iops : min= 29, max= 87, avg=55.25, stdev=14.56, samples=44 write: IOPS=57, BW=231KiB/s (236kB/s)(5192KiB/22514msec); 0 zone resets slat (usec): min=33, max=14222, avg=231.47, stdev=714.77 clat (msec): min=42, max=309, avg=138.65, stdev=42.53 lat (msec): min=44, max=309, avg=138.88, stdev=42.55 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 85], 10.00th=[ 92], 20.00th=[ 103], | 30.00th=[ 111], 40.00th=[ 121], 50.00th=[ 131], 60.00th=[ 142], | 70.00th=[ 155], 80.00th=[ 171], 90.00th=[ 199], 95.00th=[ 222], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 143, max= 380, per=25.25%, avg=230.05, stdev=61.74, samples=44 iops : min= 35, max= 95, avg=57.09, stdev=15.40, samples=44 lat (msec) : 50=0.31%, 100=20.00%, 250=78.32%, 500=1.37% cpu : usr=0.30%, sys=2.09%, ctx=4788, 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=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=180234: Thu Aug 27 20:09:21 2026 read: IOPS=54, BW=218KiB/s (223kB/s)(4976KiB/22813msec) slat (msec): min=2, max=157, avg=10.63, stdev= 7.57 clat (msec): min=20, max=480, avg=134.71, stdev=47.08 lat (msec): min=25, max=500, avg=145.35, stdev=49.74 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 79], 10.00th=[ 86], 20.00th=[ 95], | 30.00th=[ 107], 40.00th=[ 117], 50.00th=[ 127], 60.00th=[ 138], | 70.00th=[ 153], 80.00th=[ 169], 90.00th=[ 190], 95.00th=[ 213], | 99.00th=[ 296], 99.50th=[ 359], 99.90th=[ 468], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 79, max= 350, per=24.88%, avg=217.67, stdev=61.57, samples=45 iops : min= 19, max= 87, avg=53.98, stdev=15.38, samples=45 write: IOPS=57, BW=231KiB/s (236kB/s)(5264KiB/22813msec); 0 zone resets slat (usec): min=23, max=12198, avg=203.86, stdev=659.00 clat (msec): min=38, max=443, avg=137.42, stdev=44.58 lat (msec): min=39, max=443, avg=137.63, stdev=44.59 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 85], 10.00th=[ 92], 20.00th=[ 103], | 30.00th=[ 110], 40.00th=[ 120], 50.00th=[ 131], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 167], 90.00th=[ 190], 95.00th=[ 213], | 99.00th=[ 284], 99.50th=[ 334], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 104, max= 427, per=25.38%, avg=231.24, stdev=67.37, samples=45 iops : min= 26, max= 106, avg=57.38, stdev=16.77, samples=45 lat (msec) : 50=0.12%, 100=21.02%, 250=76.99%, 500=1.88% cpu : usr=0.39%, sys=2.13%, ctx=4495, 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=180235: Thu Aug 27 20:09:21 2026 read: IOPS=54, BW=218KiB/s (223kB/s)(4984KiB/22910msec) slat (msec): min=2, max=220, avg=10.41, stdev= 9.19 clat (msec): min=8, max=568, avg=133.72, stdev=49.85 lat (msec): min=16, max=583, avg=144.14, stdev=52.54 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 77], 10.00th=[ 86], 20.00th=[ 97], | 30.00th=[ 105], 40.00th=[ 115], 50.00th=[ 126], 60.00th=[ 138], | 70.00th=[ 150], 80.00th=[ 167], 90.00th=[ 192], 95.00th=[ 215], | 99.00th=[ 259], 99.50th=[ 313], 99.90th=[ 531], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 83, max= 404, per=24.67%, avg=215.87, stdev=71.22, samples=45 iops : min= 20, max= 101, avg=53.56, stdev=17.83, samples=45 write: IOPS=57, BW=229KiB/s (235kB/s)(5256KiB/22910msec); 0 zone resets slat (usec): min=25, max=3652, avg=176.58, stdev=334.53 clat (msec): min=19, max=582, avg=139.27, stdev=53.43 lat (msec): min=19, max=583, avg=139.45, stdev=53.43 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 82], 10.00th=[ 90], 20.00th=[ 101], | 30.00th=[ 110], 40.00th=[ 120], 50.00th=[ 131], 60.00th=[ 144], | 70.00th=[ 155], 80.00th=[ 176], 90.00th=[ 197], 95.00th=[ 220], | 99.00th=[ 275], 99.50th=[ 498], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 76, max= 396, per=24.85%, avg=226.40, stdev=69.33, samples=45 iops : min= 19, max= 99, avg=56.18, stdev=17.33, samples=45 lat (msec) : 10=0.04%, 20=0.16%, 50=0.62%, 100=21.13%, 250=76.33% lat (msec) : 500=1.37%, 750=0.35% cpu : usr=0.27%, sys=2.01%, ctx=4721, 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=180236: Thu Aug 27 20:09:21 2026 read: IOPS=55, BW=222KiB/s (227kB/s)(5060KiB/22795msec) slat (usec): min=1842, max=64605, avg=10335.84, stdev=6299.66 clat (msec): min=33, max=315, avg=133.22, stdev=43.04 lat (msec): min=38, max=326, avg=143.56, stdev=45.55 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 97], | 30.00th=[ 106], 40.00th=[ 115], 50.00th=[ 126], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 169], 90.00th=[ 197], 95.00th=[ 215], | 99.00th=[ 271], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 83, max= 343, per=25.34%, avg=221.71, stdev=61.38, samples=45 iops : min= 20, max= 85, avg=55.02, stdev=15.36, samples=45 write: IOPS=56, BW=227KiB/s (233kB/s)(5180KiB/22795msec); 0 zone resets slat (usec): min=25, max=12268, avg=204.41, stdev=652.29 clat (msec): min=47, max=310, avg=138.80, stdev=41.02 lat (msec): min=47, max=310, avg=139.01, stdev=41.04 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 84], 10.00th=[ 92], 20.00th=[ 102], | 30.00th=[ 111], 40.00th=[ 123], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 159], 80.00th=[ 174], 90.00th=[ 192], 95.00th=[ 209], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 83, max= 407, per=24.94%, avg=227.24, stdev=65.68, samples=45 iops : min= 20, max= 101, avg=56.38, stdev=16.40, samples=45 lat (msec) : 50=0.12%, 100=20.86%, 250=77.46%, 500=1.56% cpu : usr=0.31%, sys=2.05%, ctx=4699, 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=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=876KiB/s (897kB/s), 218KiB/s-224KiB/s (223kB/s-230kB/s), io=19.6MiB (20.5MB), run=22514-22910msec WRITE: bw=912KiB/s (934kB/s), 227KiB/s-231KiB/s (233kB/s-236kB/s), io=20.4MiB (21.4MB), run=22514-22910msec 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=180248: Thu Aug 27 20:09:31 2026 read: IOPS=2, BW=89.5MiB/s (93.8MB/s)(40.0MiB/447msec) slat (nsec): min=42022k, max=42022k, avg=42021914.00, stdev= 0.00 clat (nsec): min=367273k, max=367273k, avg=367272563.00, stdev= 0.00 lat (nsec): min=409301k, max=409301k, avg=409300623.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.22%, sys=3.14%, ctx=6, 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=89.5MiB/s (93.8MB/s), 89.5MiB/s-89.5MiB/s (93.8MB/s-93.8MB/s), io=40.0MiB (41.9MB), run=447-447msec 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