== sanity test 398c: run fio to test AIO ================= 20:37:31 (1788395851) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.424318 s, 98.8 MB/s osc.lustre-OST0000-osc-ffff8e1ad2dd7000.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=181542: Wed Sep 2 20:38:10 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29334msec); 0 zone resets slat (usec): min=26, max=11580, avg=179.39, stdev=670.60 clat (msec): min=93, max=349, avg=182.02, stdev=37.48 lat (msec): min=95, max=350, avg=182.20, stdev=37.50 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 288], 99.50th=[ 321], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 241, max= 501, per=24.99%, avg=348.60, stdev=57.92, samples=58 iops : min= 60, max= 125, avg=86.74, stdev=14.50, samples=58 lat (msec) : 100=0.47%, 250=95.90%, 500=3.63% cpu : usr=0.11%, sys=0.73%, ctx=1902, majf=0, minf=8 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=181543: Wed Sep 2 20:38:10 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29346msec); 0 zone resets slat (usec): min=28, max=18428, avg=194.41, stdev=730.43 clat (msec): min=30, max=360, avg=182.01, stdev=38.17 lat (msec): min=30, max=360, avg=182.20, stdev=38.21 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 279], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 119, max= 486, per=24.90%, avg=347.38, stdev=65.63, samples=58 iops : min= 29, max= 121, avg=86.41, stdev=16.43, samples=58 lat (msec) : 50=0.04%, 100=0.78%, 250=95.08%, 500=4.10% cpu : usr=0.15%, sys=0.90%, ctx=2632, 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=181544: Wed Sep 2 20:38:10 2026 write: IOPS=87, BW=350KiB/s (359kB/s)(10.0MiB/29227msec); 0 zone resets slat (usec): min=28, max=10299, avg=201.63, stdev=664.23 clat (msec): min=13, max=376, avg=182.23, stdev=39.39 lat (msec): min=14, max=376, avg=182.43, stdev=39.38 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 342], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 224, max= 510, per=25.01%, avg=348.90, stdev=60.08, samples=58 iops : min= 56, max= 127, avg=86.84, stdev=14.99, samples=58 lat (msec) : 20=0.04%, 50=0.12%, 100=0.31%, 250=94.80%, 500=4.73% cpu : usr=0.16%, sys=0.85%, ctx=2542, 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=181545: Wed Sep 2 20:38:10 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29337msec); 0 zone resets slat (usec): min=28, max=11142, avg=214.82, stdev=668.32 clat (msec): min=15, max=360, avg=182.22, stdev=39.18 lat (msec): min=15, max=360, avg=182.44, stdev=39.16 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 238, max= 463, per=24.98%, avg=348.48, stdev=59.17, samples=58 iops : min= 59, max= 115, avg=86.71, stdev=14.79, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=0.27%, 250=94.45%, 500=5.16% cpu : usr=0.20%, sys=0.90%, ctx=2983, 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=1396KiB/s (1429kB/s), 349KiB/s-350KiB/s (357kB/s-359kB/s), io=40.0MiB (41.9MB), run=29227-29346msec 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=181559: Wed Sep 2 20:38:51 2026 read: IOPS=38, BW=156KiB/s (159kB/s)(5048KiB/32461msec) slat (usec): min=2839, max=59104, avg=14489.88, stdev=8168.53 clat (msec): min=31, max=394, avg=191.64, stdev=48.05 lat (msec): min=45, max=432, avg=206.14, stdev=49.58 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 380], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 95, max= 232, per=25.21%, avg=155.06, stdev=36.46, samples=64 iops : min= 23, max= 58, avg=38.31, stdev= 9.18, samples=64 write: IOPS=39, BW=160KiB/s (164kB/s)(5192KiB/32461msec); 0 zone resets slat (usec): min=30, max=7493, avg=181.13, stdev=524.66 clat (msec): min=48, max=406, avg=197.05, stdev=46.22 lat (msec): min=48, max=407, avg=197.23, stdev=46.20 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 56, max= 256, per=24.98%, avg=159.84, stdev=39.48, samples=64 iops : min= 14, max= 64, avg=39.52, stdev= 9.92, samples=64 lat (msec) : 50=0.12%, 100=0.16%, 250=87.03%, 500=12.70% cpu : usr=0.28%, sys=1.45%, ctx=3433, 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=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=181560: Wed Sep 2 20:38:51 2026 read: IOPS=38, BW=153KiB/s (156kB/s)(4976KiB/32599msec) slat (usec): min=3033, max=48638, avg=14434.22, stdev=8100.80 clat (msec): min=22, max=363, avg=192.97, stdev=49.19 lat (msec): min=36, max=392, avg=207.41, stdev=50.38 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 351], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 79, max= 238, per=24.56%, avg=151.05, stdev=38.12, samples=64 iops : min= 19, max= 59, avg=37.33, stdev= 9.62, samples=64 write: IOPS=40, BW=161KiB/s (165kB/s)(5264KiB/32599msec); 0 zone resets slat (usec): min=28, max=17145, avg=251.21, stdev=903.06 clat (msec): min=21, max=364, avg=197.85, stdev=46.60 lat (msec): min=22, max=364, avg=198.11, stdev=46.58 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 80, max= 238, per=25.04%, avg=160.25, stdev=35.46, samples=64 iops : min= 20, max= 59, avg=39.61, stdev= 8.90, samples=64 lat (msec) : 50=0.27%, 100=0.51%, 250=86.09%, 500=13.12% cpu : usr=0.27%, sys=1.62%, ctx=3988, 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=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=181561: Wed Sep 2 20:38:51 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4984KiB/32329msec) slat (usec): min=31, max=59836, avg=14228.80, stdev=8307.22 clat (msec): min=33, max=395, avg=191.71, stdev=49.24 lat (msec): min=33, max=420, avg=205.95, stdev=51.02 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 79, max= 272, per=25.01%, avg=153.81, stdev=41.92, samples=64 iops : min= 19, max= 68, avg=38.00, stdev=10.53, samples=64 write: IOPS=40, BW=163KiB/s (166kB/s)(5256KiB/32329msec); 0 zone resets slat (usec): min=32, max=12508, avg=222.62, stdev=736.22 clat (msec): min=29, max=407, avg=197.42, stdev=46.03 lat (msec): min=29, max=407, avg=197.64, stdev=45.99 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 363], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 231, per=25.26%, avg=161.64, stdev=36.79, samples=64 iops : min= 17, max= 57, avg=39.97, stdev= 9.25, samples=64 lat (msec) : 50=0.16%, 100=0.43%, 250=86.45%, 500=12.97% cpu : usr=0.27%, sys=1.55%, ctx=3967, 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=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=181562: Wed Sep 2 20:38:51 2026 read: IOPS=38, BW=156KiB/s (159kB/s)(5060KiB/32488msec) slat (usec): min=3120, max=95722, avg=14299.94, stdev=8502.49 clat (msec): min=35, max=388, avg=191.12, stdev=44.58 lat (msec): min=44, max=435, avg=205.43, stdev=46.72 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 48, max= 248, per=25.28%, avg=155.45, stdev=41.03, samples=64 iops : min= 12, max= 62, avg=38.41, stdev=10.30, samples=64 write: IOPS=39, BW=159KiB/s (163kB/s)(5180KiB/32488msec); 0 zone resets slat (usec): min=29, max=13800, avg=211.68, stdev=683.18 clat (msec): min=107, max=435, avg=198.20, stdev=47.69 lat (msec): min=107, max=435, avg=198.41, stdev=47.69 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 88, max= 247, per=24.79%, avg=158.66, stdev=35.62, samples=64 iops : min= 22, max= 61, avg=39.22, stdev= 8.96, samples=64 lat (msec) : 50=0.04%, 100=0.12%, 250=87.85%, 500=11.99% cpu : usr=0.25%, sys=1.57%, ctx=4173, majf=0, minf=15 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=616KiB/s (630kB/s), 153KiB/s-156KiB/s (156kB/s-159kB/s), io=19.6MiB (20.5MB), run=32329-32599msec WRITE: bw=641KiB/s (656kB/s), 159KiB/s-163KiB/s (163kB/s-166kB/s), io=20.4MiB (21.4MB), run=32329-32599msec 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=181573: Wed Sep 2 20:39:03 2026 read: IOPS=2, BW=85.1MiB/s (89.2MB/s)(40.0MiB/470msec) slat (nsec): min=46352k, max=46352k, avg=46351547.00, stdev= 0.00 clat (nsec): min=399281k, max=399281k, avg=399280999.00, stdev= 0.00 lat (nsec): min=445638k, max=445638k, avg=445638174.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.92%, ctx=6, majf=0, minf=9 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=85.1MiB/s (89.2MB/s), 85.1MiB/s-85.1MiB/s (89.2MB/s-89.2MB/s), io=40.0MiB (41.9MB), run=470-470msec 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