== sanity test 398c: run fio to test AIO ================= 01:08:03 (1788844083) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.674302 s, 62.2 MB/s osc.lustre-OST0000-osc-ffff93d6e09d0800.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=180023: Tue Sep 8 01:08:44 2026 write: IOPS=80, BW=321KiB/s (329kB/s)(10.0MiB/31856msec); 0 zone resets slat (usec): min=27, max=15909, avg=174.14, stdev=665.24 clat (msec): min=68, max=326, avg=195.87, stdev=46.73 lat (msec): min=68, max=330, avg=196.05, stdev=46.74 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 209], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 126, max= 512, per=25.38%, avg=326.11, stdev=80.67, samples=62 iops : min= 31, max= 128, avg=81.15, stdev=20.20, samples=62 lat (msec) : 100=0.62%, 250=84.80%, 500=14.57% cpu : usr=0.13%, sys=0.58%, ctx=969, 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=180024: Tue Sep 8 01:08:44 2026 write: IOPS=80, BW=321KiB/s (329kB/s)(10.0MiB/31874msec); 0 zone resets slat (usec): min=29, max=23822, avg=301.43, stdev=1145.64 clat (msec): min=15, max=361, avg=196.03, stdev=47.45 lat (msec): min=16, max=361, avg=196.34, stdev=47.44 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 355], | 99.99th=[ 363] bw ( KiB/s): min= 229, max= 510, per=25.33%, avg=325.48, stdev=68.03, samples=62 iops : min= 57, max= 127, avg=80.98, stdev=16.97, samples=62 lat (msec) : 20=0.04%, 50=0.16%, 100=0.55%, 250=85.20%, 500=14.06% cpu : usr=0.19%, sys=1.07%, ctx=2678, 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=180025: Tue Sep 8 01:08:44 2026 write: IOPS=80, BW=322KiB/s (329kB/s)(10.0MiB/31834msec); 0 zone resets slat (usec): min=30, max=23672, avg=258.40, stdev=926.66 clat (msec): min=35, max=376, avg=196.38, stdev=47.42 lat (msec): min=35, max=376, avg=196.64, stdev=47.40 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 224], 80.00th=[ 241], 90.00th=[ 259], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 334], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 115, max= 509, per=24.96%, avg=320.78, stdev=74.28, samples=63 iops : min= 28, max= 127, avg=79.79, stdev=18.55, samples=63 lat (msec) : 50=0.08%, 100=1.29%, 250=84.22%, 500=14.41% cpu : usr=0.19%, sys=0.91%, ctx=2660, 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=180026: Tue Sep 8 01:08:44 2026 write: IOPS=81, BW=324KiB/s (332kB/s)(10.0MiB/31569msec); 0 zone resets slat (usec): min=28, max=30318, avg=293.58, stdev=1133.23 clat (msec): min=16, max=398, avg=196.72, stdev=50.47 lat (msec): min=16, max=398, avg=197.02, stdev=50.43 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 266], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 189, max= 509, per=25.22%, avg=324.02, stdev=72.39, samples=62 iops : min= 47, max= 127, avg=80.63, stdev=18.06, samples=62 lat (msec) : 20=0.04%, 50=0.12%, 100=1.60%, 250=82.38%, 500=15.86% cpu : usr=0.27%, sys=1.06%, ctx=2947, 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 Run status group 0 (all jobs): WRITE: bw=1285KiB/s (1316kB/s), 321KiB/s-324KiB/s (329kB/s-332kB/s), io=40.0MiB (41.9MB), run=31569-31874msec 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=180041: Tue Sep 8 01:09:27 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35604msec) slat (usec): min=35, max=68683, avg=15847.67, stdev=8847.12 clat (msec): min=29, max=389, avg=209.26, stdev=55.26 lat (msec): min=39, max=401, avg=225.12, stdev=57.40 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 126], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 384], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 77, max= 227, per=25.12%, avg=141.44, stdev=38.17, samples=70 iops : min= 19, max= 56, avg=34.84, stdev= 9.56, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35604msec); 0 zone resets slat (usec): min=30, max=17585, avg=305.92, stdev=1050.02 clat (msec): min=64, max=385, avg=216.36, stdev=51.78 lat (msec): min=64, max=385, avg=216.66, stdev=51.76 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 53, max= 231, per=24.86%, avg=145.66, stdev=34.77, samples=70 iops : min= 13, max= 57, avg=35.91, stdev= 8.65, samples=70 lat (msec) : 50=0.12%, 100=0.35%, 250=74.84%, 500=24.69% cpu : usr=0.32%, sys=1.82%, ctx=4360, 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=180042: Tue Sep 8 01:09:27 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4976KiB/35570msec) slat (usec): min=39, max=66762, avg=15705.34, stdev=8724.03 clat (msec): min=40, max=411, avg=210.37, stdev=55.93 lat (msec): min=49, max=419, avg=226.08, stdev=58.17 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 38, max= 240, per=24.77%, avg=139.44, stdev=39.43, samples=70 iops : min= 9, max= 60, avg=34.36, stdev= 9.89, samples=70 write: IOPS=36, BW=148KiB/s (152kB/s)(5264KiB/35570msec); 0 zone resets slat (usec): min=32, max=17741, avg=305.86, stdev=936.95 clat (msec): min=93, max=430, avg=215.09, stdev=53.83 lat (msec): min=94, max=430, avg=215.40, stdev=53.86 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 405], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 38, max= 231, per=25.26%, avg=148.01, stdev=39.28, samples=70 iops : min= 9, max= 57, avg=36.50, stdev= 9.83, samples=70 lat (msec) : 50=0.08%, 100=0.20%, 250=75.66%, 500=24.06% cpu : usr=0.28%, sys=1.96%, ctx=4306, 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=180043: Tue Sep 8 01:09:27 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35268msec) slat (usec): min=52, max=70950, avg=16185.34, stdev=8925.19 clat (msec): min=34, max=424, avg=210.62, stdev=54.02 lat (msec): min=40, max=450, avg=226.81, stdev=55.88 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 393], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 86, max= 215, per=25.08%, avg=141.20, stdev=31.17, samples=69 iops : min= 21, max= 53, avg=34.80, stdev= 7.80, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35268msec); 0 zone resets slat (usec): min=29, max=19084, avg=306.65, stdev=997.89 clat (msec): min=92, max=391, avg=213.28, stdev=51.43 lat (msec): min=92, max=392, avg=213.59, stdev=51.41 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 64, max= 256, per=25.34%, avg=148.51, stdev=41.44, samples=69 iops : min= 16, max= 64, avg=36.62, stdev=10.36, samples=69 lat (msec) : 50=0.12%, 100=0.43%, 250=76.05%, 500=23.40% cpu : usr=0.36%, sys=1.94%, ctx=4574, 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=180044: Tue Sep 8 01:09:27 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5060KiB/35615msec) slat (usec): min=53, max=61168, avg=15878.23, stdev=8622.74 clat (msec): min=30, max=382, avg=209.98, stdev=53.31 lat (msec): min=30, max=402, avg=225.88, stdev=55.04 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 55, max= 223, per=25.21%, avg=141.91, stdev=33.86, samples=70 iops : min= 13, max= 55, avg=34.96, stdev= 8.45, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5180KiB/35615msec); 0 zone resets slat (usec): min=31, max=12113, avg=303.53, stdev=914.90 clat (msec): min=92, max=379, avg=216.52, stdev=53.10 lat (msec): min=92, max=379, avg=216.82, stdev=53.09 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 264], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 87, max= 239, per=24.69%, avg=144.70, stdev=35.61, samples=70 iops : min= 21, max= 59, avg=35.66, stdev= 8.94, samples=70 lat (msec) : 50=0.12%, 100=0.31%, 250=74.49%, 500=25.08% cpu : usr=0.25%, sys=1.90%, ctx=4449, 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=563KiB/s (577kB/s), 140KiB/s-142KiB/s (143kB/s-145kB/s), io=19.6MiB (20.5MB), run=35268-35615msec WRITE: bw=587KiB/s (601kB/s), 145KiB/s-149KiB/s (149kB/s-153kB/s), io=20.4MiB (21.4MB), run=35268-35615msec 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=180053: Tue Sep 8 01:09:38 2026 read: IOPS=1, BW=62.3MiB/s (65.3MB/s)(40.0MiB/642msec) slat (nsec): min=49283k, max=49283k, avg=49283467.00, stdev= 0.00 clat (nsec): min=556677k, max=556677k, avg=556676651.00, stdev= 0.00 lat (nsec): min=606637k, max=606637k, avg=606637191.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.34%, ctx=7, 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=62.3MiB/s (65.3MB/s), 62.3MiB/s-62.3MiB/s (65.3MB/s-65.3MB/s), io=40.0MiB (41.9MB), run=642-642msec 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