== sanity test 398c: run fio to test AIO ================= 18:06:27 (1788818787) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.443161 s, 94.6 MB/s osc.lustre-OST0000-osc-ffff9ac251a64000.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=180606: Mon Sep 7 18:07:01 2026 write: IOPS=109, BW=438KiB/s (449kB/s)(10.0MiB/23355msec); 0 zone resets slat (usec): min=23, max=17043, avg=151.56, stdev=574.91 clat (msec): min=18, max=319, avg=145.55, stdev=43.28 lat (msec): min=26, max=328, avg=145.71, stdev=43.29 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 92], 10.00th=[ 107], 20.00th=[ 120], | 30.00th=[ 127], 40.00th=[ 131], 50.00th=[ 136], 60.00th=[ 140], | 70.00th=[ 150], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 241], | 99.00th=[ 292], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 239, max= 824, per=25.05%, avg=438.11, stdev=110.50, samples=46 iops : min= 59, max= 206, avg=109.24, stdev=27.69, samples=46 lat (msec) : 20=0.04%, 50=0.08%, 100=6.80%, 250=88.63%, 500=4.45% cpu : usr=0.20%, sys=1.01%, ctx=2017, 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=180607: Mon Sep 7 18:07:01 2026 write: IOPS=109, BW=437KiB/s (448kB/s)(10.0MiB/23409msec); 0 zone resets slat (usec): min=21, max=10368, avg=135.50, stdev=470.65 clat (msec): min=16, max=306, avg=145.32, stdev=44.23 lat (msec): min=17, max=306, avg=145.46, stdev=44.21 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 96], 10.00th=[ 109], 20.00th=[ 118], | 30.00th=[ 126], 40.00th=[ 131], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 148], 80.00th=[ 163], 90.00th=[ 207], 95.00th=[ 245], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 207, max= 808, per=24.92%, avg=435.85, stdev=116.79, samples=46 iops : min= 51, max= 202, avg=108.63, stdev=29.24, samples=46 lat (msec) : 20=0.04%, 50=0.08%, 100=6.05%, 250=89.10%, 500=4.73% cpu : usr=0.14%, sys=0.83%, ctx=1717, 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=180608: Mon Sep 7 18:07:01 2026 write: IOPS=109, BW=438KiB/s (449kB/s)(10.0MiB/23374msec); 0 zone resets slat (usec): min=22, max=10006, avg=153.33, stdev=502.09 clat (msec): min=16, max=311, avg=144.97, stdev=43.87 lat (msec): min=16, max=311, avg=145.13, stdev=43.85 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 93], 10.00th=[ 109], 20.00th=[ 120], | 30.00th=[ 125], 40.00th=[ 130], 50.00th=[ 136], 60.00th=[ 140], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 207], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 191, max= 872, per=25.00%, avg=437.26, stdev=123.00, samples=46 iops : min= 47, max= 218, avg=109.04, stdev=30.83, samples=46 lat (msec) : 20=0.04%, 50=0.20%, 100=6.64%, 250=88.05%, 500=5.08% cpu : usr=0.21%, sys=0.95%, ctx=2400, 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=180609: Mon Sep 7 18:07:01 2026 write: IOPS=109, BW=439KiB/s (449kB/s)(10.0MiB/23345msec); 0 zone resets slat (usec): min=26, max=11038, avg=175.71, stdev=601.53 clat (msec): min=22, max=316, avg=145.20, stdev=43.75 lat (msec): min=22, max=316, avg=145.38, stdev=43.76 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 92], 10.00th=[ 107], 20.00th=[ 120], | 30.00th=[ 125], 40.00th=[ 132], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 205], 95.00th=[ 249], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 247, max= 832, per=25.04%, avg=438.00, stdev=111.30, samples=46 iops : min= 61, max= 208, avg=109.22, stdev=27.90, samples=46 lat (msec) : 50=0.27%, 100=7.15%, 250=87.73%, 500=4.84% cpu : usr=0.26%, sys=1.04%, ctx=2442, 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=1750KiB/s (1792kB/s), 437KiB/s-439KiB/s (448kB/s-449kB/s), io=40.0MiB (41.9MB), run=23345-23409msec 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=180625: Mon Sep 7 18:07:41 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(5048KiB/30806msec) slat (usec): min=48, max=62583, avg=13924.41, stdev=7652.33 clat (msec): min=13, max=345, avg=181.86, stdev=41.86 lat (msec): min=13, max=363, avg=195.80, stdev=43.27 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 338], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 95, max= 231, per=25.20%, avg=162.82, stdev=33.04, samples=61 iops : min= 23, max= 57, avg=40.20, stdev= 8.25, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5192KiB/30806msec); 0 zone resets slat (usec): min=30, max=13367, avg=245.24, stdev=826.37 clat (msec): min=58, max=333, avg=188.67, stdev=40.72 lat (msec): min=59, max=333, avg=188.92, stdev=40.71 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 104, max= 247, per=24.97%, avg=167.80, stdev=33.39, samples=61 iops : min= 26, max= 61, avg=41.46, stdev= 8.37, samples=61 lat (msec) : 20=0.23%, 50=0.08%, 100=0.51%, 250=91.88%, 500=7.30% cpu : usr=0.31%, sys=1.91%, ctx=4388, 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=180626: Mon Sep 7 18:07:41 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4976KiB/31042msec) slat (usec): min=2853, max=68908, avg=14187.69, stdev=7646.77 clat (msec): min=22, max=341, avg=182.95, stdev=39.86 lat (msec): min=42, max=366, avg=197.15, stdev=41.22 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 82, max= 271, per=24.63%, avg=159.10, stdev=36.25, samples=61 iops : min= 20, max= 67, avg=39.28, stdev= 9.06, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5264KiB/31042msec); 0 zone resets slat (usec): min=26, max=18025, avg=259.43, stdev=989.08 clat (msec): min=50, max=334, avg=188.48, stdev=38.44 lat (msec): min=51, max=334, avg=188.74, stdev=38.46 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 313], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 103, max= 227, per=25.23%, avg=169.52, stdev=32.94, samples=61 iops : min= 25, max= 56, avg=41.89, stdev= 8.26, samples=61 lat (msec) : 50=0.04%, 100=0.59%, 250=93.36%, 500=6.02% cpu : usr=0.29%, sys=1.95%, ctx=4280, 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=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=180627: Mon Sep 7 18:07:41 2026 read: IOPS=40, BW=161KiB/s (164kB/s)(4984KiB/31049msec) slat (usec): min=3041, max=73200, avg=14165.59, stdev=7989.53 clat (msec): min=21, max=363, avg=183.49, stdev=43.86 lat (msec): min=33, max=398, avg=197.66, stdev=45.28 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 74, max= 238, per=24.73%, avg=159.79, stdev=37.54, samples=61 iops : min= 18, max= 59, avg=39.44, stdev= 9.37, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31049msec); 0 zone resets slat (usec): min=35, max=12580, avg=232.94, stdev=769.34 clat (msec): min=46, max=346, avg=187.20, stdev=38.71 lat (msec): min=47, max=346, avg=187.44, stdev=38.70 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 71, max= 279, per=24.98%, avg=167.87, stdev=38.79, samples=61 iops : min= 17, max= 69, avg=41.46, stdev= 9.72, samples=61 lat (msec) : 50=0.12%, 100=1.02%, 250=92.97%, 500=5.90% cpu : usr=0.31%, sys=1.93%, ctx=4613, 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=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=180628: Mon Sep 7 18:07:41 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/31016msec) slat (usec): min=2967, max=55577, avg=14183.49, stdev=7795.86 clat (msec): min=20, max=327, avg=182.26, stdev=39.72 lat (msec): min=25, max=368, avg=196.45, stdev=41.32 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 79, max= 287, per=25.23%, avg=162.98, stdev=36.82, samples=61 iops : min= 19, max= 71, avg=40.26, stdev= 9.15, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/31016msec); 0 zone resets slat (usec): min=29, max=15422, avg=229.45, stdev=787.91 clat (msec): min=99, max=370, avg=189.00, stdev=39.33 lat (msec): min=99, max=370, avg=189.23, stdev=39.34 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 363], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 111, max= 248, per=24.73%, avg=166.21, stdev=34.87, samples=61 iops : min= 27, max= 62, avg=41.07, stdev= 8.73, samples=61 lat (msec) : 50=0.12%, 100=0.62%, 250=92.89%, 500=6.37% cpu : usr=0.30%, sys=1.86%, ctx=4210, 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=646KiB/s (662kB/s), 160KiB/s-164KiB/s (164kB/s-168kB/s), io=19.6MiB (20.5MB), run=30806-31049msec WRITE: bw=673KiB/s (689kB/s), 167KiB/s-170KiB/s (171kB/s-174kB/s), io=20.4MiB (21.4MB), run=30806-31049msec 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=180637: Mon Sep 7 18:07:51 2026 read: IOPS=2, BW=89.1MiB/s (93.4MB/s)(40.0MiB/449msec) slat (nsec): min=25542k, max=25542k, avg=25541514.00, stdev= 0.00 clat (nsec): min=404168k, max=404168k, avg=404168478.00, stdev= 0.00 lat (nsec): min=429716k, max=429716k, avg=429716081.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.67%, ctx=5, majf=0, minf=10 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=89.1MiB/s (93.4MB/s), 89.1MiB/s-89.1MiB/s (93.4MB/s-93.4MB/s), io=40.0MiB (41.9MB), run=449-449msec 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