== sanity test 398c: run fio to test AIO ================= 01:53:32 (1788760412) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.552767 s, 75.9 MB/s osc.lustre-OST0000-osc-ffff9d95b76d0000.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=180348: Mon Sep 7 01:54:12 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30052msec); 0 zone resets slat (usec): min=25, max=18534, avg=290.27, stdev=1038.74 clat (msec): min=33, max=465, avg=186.96, stdev=50.86 lat (msec): min=34, max=465, avg=187.25, stdev=50.87 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 110], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 401], | 99.99th=[ 468] bw ( KiB/s): min= 215, max= 547, per=25.06%, avg=341.03, stdev=75.48, samples=59 iops : min= 53, max= 136, avg=84.90, stdev=18.91, samples=59 lat (msec) : 50=0.04%, 100=3.75%, 250=83.98%, 500=12.23% cpu : usr=0.22%, sys=1.11%, ctx=2240, 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=180349: Mon Sep 7 01:54:12 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29839msec); 0 zone resets slat (usec): min=28, max=25611, avg=300.07, stdev=997.18 clat (msec): min=26, max=371, avg=186.03, stdev=51.81 lat (msec): min=26, max=371, avg=186.33, stdev=51.82 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 372] bw ( KiB/s): min= 175, max= 662, per=25.09%, avg=341.42, stdev=81.86, samples=59 iops : min= 43, max= 165, avg=85.00, stdev=20.50, samples=59 lat (msec) : 50=0.27%, 100=3.16%, 250=84.96%, 500=11.60% cpu : usr=0.24%, sys=1.16%, ctx=2841, 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=180350: Mon Sep 7 01:54:12 2026 write: IOPS=85, BW=342KiB/s (350kB/s)(10.0MiB/29936msec); 0 zone resets slat (usec): min=26, max=28217, avg=315.96, stdev=1146.91 clat (msec): min=12, max=383, avg=186.28, stdev=53.63 lat (msec): min=13, max=383, avg=186.60, stdev=53.65 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 107], 10.00th=[ 124], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 355], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 207, max= 572, per=25.11%, avg=341.69, stdev=76.85, samples=59 iops : min= 51, max= 143, avg=85.08, stdev=19.29, samples=59 lat (msec) : 20=0.08%, 50=0.47%, 100=3.09%, 250=84.10%, 500=12.27% cpu : usr=0.22%, sys=1.30%, ctx=2687, 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=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=180351: Mon Sep 7 01:54:12 2026 write: IOPS=85, BW=340KiB/s (349kB/s)(10.0MiB/30079msec); 0 zone resets slat (usec): min=29, max=22147, avg=292.14, stdev=1110.48 clat (msec): min=81, max=452, avg=186.96, stdev=51.74 lat (msec): min=81, max=454, avg=187.25, stdev=51.76 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 363], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 215, max= 581, per=25.07%, avg=341.19, stdev=75.44, samples=59 iops : min= 53, max= 145, avg=84.93, stdev=18.93, samples=59 lat (msec) : 100=3.24%, 250=84.77%, 500=11.99% cpu : usr=0.21%, sys=0.92%, ctx=2110, 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=1362KiB/s (1394kB/s), 340KiB/s-343KiB/s (349kB/s-351kB/s), io=40.0MiB (41.9MB), run=29839-30079msec 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=180366: Mon Sep 7 01:54:55 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(5048KiB/34462msec) slat (usec): min=34, max=64750, avg=15461.08, stdev=8006.00 clat (msec): min=18, max=425, avg=201.67, stdev=46.94 lat (msec): min=31, max=457, avg=217.14, stdev=48.62 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 363], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 87, max= 213, per=25.42%, avg=146.19, stdev=33.38, samples=68 iops : min= 21, max= 53, avg=36.04, stdev= 8.38, samples=68 write: IOPS=37, BW=151KiB/s (154kB/s)(5192KiB/34462msec); 0 zone resets slat (usec): min=35, max=13018, avg=320.55, stdev=957.43 clat (msec): min=21, max=415, avg=212.91, stdev=44.17 lat (msec): min=26, max=415, avg=213.23, stdev=44.15 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 401], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 80, max= 223, per=25.17%, avg=150.76, stdev=29.78, samples=68 iops : min= 20, max= 55, avg=37.18, stdev= 7.48, samples=68 lat (msec) : 20=0.04%, 50=0.20%, 100=0.94%, 250=82.42%, 500=16.41% cpu : usr=0.28%, sys=1.84%, ctx=4753, 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=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=180367: Mon Sep 7 01:54:55 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(4976KiB/34871msec) slat (usec): min=3833, max=83755, avg=15762.56, stdev=8582.56 clat (msec): min=29, max=369, avg=203.07, stdev=42.47 lat (msec): min=48, max=451, avg=218.85, stdev=44.05 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 22, max= 230, per=24.64%, avg=141.65, stdev=32.34, samples=69 iops : min= 5, max= 57, avg=34.91, stdev= 8.08, samples=69 write: IOPS=37, BW=151KiB/s (155kB/s)(5264KiB/34871msec); 0 zone resets slat (usec): min=34, max=16470, avg=279.60, stdev=917.07 clat (msec): min=99, max=406, avg=214.43, stdev=41.57 lat (msec): min=99, max=407, avg=214.71, stdev=41.61 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 180], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 249], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 384], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 82, max= 230, per=25.13%, avg=150.54, stdev=29.42, samples=69 iops : min= 20, max= 57, avg=37.14, stdev= 7.41, samples=69 lat (msec) : 50=0.08%, 100=0.20%, 250=83.63%, 500=16.09% cpu : usr=0.29%, sys=1.73%, ctx=4406, 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=180368: Mon Sep 7 01:54:55 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(4984KiB/34860msec) slat (usec): min=35, max=68630, avg=15797.29, stdev=8281.25 clat (msec): min=23, max=371, avg=205.56, stdev=45.84 lat (msec): min=38, max=396, avg=221.36, stdev=47.18 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 59, max= 216, per=24.84%, avg=142.81, stdev=29.14, samples=69 iops : min= 14, max= 54, avg=35.19, stdev= 7.36, samples=69 write: IOPS=37, BW=151KiB/s (154kB/s)(5256KiB/34860msec); 0 zone resets slat (usec): min=34, max=17630, avg=298.77, stdev=968.78 clat (msec): min=51, max=362, avg=212.93, stdev=43.66 lat (msec): min=52, max=362, avg=213.23, stdev=43.67 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 79, max= 222, per=25.05%, avg=150.06, stdev=33.64, samples=69 iops : min= 19, max= 55, avg=37.03, stdev= 8.43, samples=69 lat (msec) : 50=0.08%, 100=0.16%, 250=82.03%, 500=17.73% cpu : usr=0.25%, sys=1.88%, ctx=4410, 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=180369: Mon Sep 7 01:54:55 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(5060KiB/34809msec) slat (usec): min=3332, max=65669, avg=15762.81, stdev=8421.22 clat (msec): min=91, max=370, avg=205.93, stdev=43.01 lat (msec): min=112, max=376, avg=221.70, stdev=44.19 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 29, max= 214, per=25.16%, avg=144.68, stdev=30.49, samples=69 iops : min= 7, max= 53, avg=35.68, stdev= 7.68, samples=69 write: IOPS=37, BW=149KiB/s (152kB/s)(5180KiB/34809msec); 0 zone resets slat (usec): min=34, max=32119, avg=371.25, stdev=1368.98 clat (msec): min=74, max=399, avg=210.53, stdev=41.92 lat (msec): min=78, max=399, avg=210.91, stdev=41.94 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 207], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 51, max= 230, per=24.75%, avg=148.25, stdev=33.59, samples=69 iops : min= 12, max= 57, avg=36.55, stdev= 8.44, samples=69 lat (msec) : 100=0.08%, 250=84.96%, 500=14.96% cpu : usr=0.28%, sys=1.99%, ctx=4563, 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=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=575KiB/s (589kB/s), 143KiB/s-146KiB/s (146kB/s-150kB/s), io=19.6MiB (20.5MB), run=34462-34871msec WRITE: bw=599KiB/s (614kB/s), 149KiB/s-151KiB/s (152kB/s-155kB/s), io=20.4MiB (21.4MB), run=34462-34871msec 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=180379: Mon Sep 7 01:55:05 2026 read: IOPS=2, BW=99.5MiB/s (104MB/s)(40.0MiB/402msec) slat (nsec): min=29507k, max=29507k, avg=29507290.00, stdev= 0.00 clat (nsec): min=343331k, max=343331k, avg=343330579.00, stdev= 0.00 lat (nsec): min=372842k, max=372842k, avg=372842153.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.24%, ctx=5, 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=99.5MiB/s (104MB/s), 99.5MiB/s-99.5MiB/s (104MB/s-104MB/s), io=40.0MiB (41.9MB), run=402-402msec 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