== sanity test 398c: run fio to test AIO ================= 15:32:09 (1777577529) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.520324 s, 80.6 MB/s osc.lustre-OST0000-osc-ffff9ba184ddf000.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=189916: Thu Apr 30 15:32:48 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29509msec); 0 zone resets slat (usec): min=51, max=10682, avg=376.95, stdev=756.67 clat (msec): min=16, max=340, avg=183.26, stdev=37.01 lat (msec): min=17, max=340, avg=183.65, stdev=36.99 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 239], | 99.00th=[ 326], 99.50th=[ 330], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 342] bw ( KiB/s): min= 232, max= 487, per=24.97%, avg=346.57, stdev=56.52, samples=58 iops : min= 58, max= 121, avg=86.26, stdev=14.12, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=96.52%, 500=3.20% cpu : usr=0.18%, sys=1.35%, ctx=2869, 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=189917: Thu Apr 30 15:32:48 2026 write: IOPS=86, BW=348KiB/s (356kB/s)(10.0MiB/29440msec); 0 zone resets slat (usec): min=49, max=11557, avg=383.75, stdev=838.49 clat (msec): min=17, max=359, avg=183.00, stdev=38.17 lat (msec): min=17, max=359, avg=183.39, stdev=38.17 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 232, max= 490, per=25.04%, avg=347.50, stdev=59.68, samples=58 iops : min= 58, max= 122, avg=86.48, stdev=14.92, samples=58 lat (msec) : 20=0.04%, 50=0.20%, 100=0.20%, 250=95.70%, 500=3.87% cpu : usr=0.19%, sys=1.41%, ctx=2927, 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=189918: Thu Apr 30 15:32:48 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29509msec); 0 zone resets slat (usec): min=50, max=12946, avg=366.99, stdev=888.34 clat (msec): min=19, max=331, avg=183.23, stdev=36.01 lat (msec): min=20, max=331, avg=183.60, stdev=36.01 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 226], 95.00th=[ 234], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 234, max= 518, per=24.96%, avg=346.50, stdev=56.68, samples=58 iops : min= 58, max= 129, avg=86.24, stdev=14.17, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 250=97.15%, 500=2.73% cpu : usr=0.15%, sys=1.18%, ctx=2347, 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=189919: Thu Apr 30 15:32:48 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29376msec); 0 zone resets slat (usec): min=48, max=10813, avg=369.61, stdev=827.80 clat (msec): min=37, max=339, avg=183.10, stdev=37.88 lat (msec): min=38, max=339, avg=183.47, stdev=37.85 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 208, max= 455, per=25.07%, avg=347.95, stdev=52.65, samples=58 iops : min= 52, max= 113, avg=86.59, stdev=13.13, samples=58 lat (msec) : 50=0.20%, 100=0.35%, 250=95.74%, 500=3.71% cpu : usr=0.26%, sys=1.35%, ctx=2928, 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 Run status group 0 (all jobs): WRITE: bw=1388KiB/s (1421kB/s), 347KiB/s-349KiB/s (355kB/s-357kB/s), io=40.0MiB (41.9MB), run=29376-29509msec 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=189934: Thu Apr 30 15:33:37 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(5048KiB/38586msec) slat (usec): min=2737, max=98963, avg=16971.81, stdev=10020.90 clat (msec): min=74, max=492, avg=228.52, stdev=66.59 lat (msec): min=91, max=540, avg=245.50, stdev=69.68 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 435], 99.50th=[ 443], 99.90th=[ 485], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 57, max= 202, per=25.06%, avg=130.33, stdev=37.06, samples=76 iops : min= 14, max= 50, avg=32.03, stdev= 9.35, samples=76 write: IOPS=33, BW=135KiB/s (138kB/s)(5192KiB/38586msec); 0 zone resets slat (usec): min=54, max=12498, avg=416.14, stdev=978.66 clat (msec): min=32, max=460, avg=232.82, stdev=60.11 lat (msec): min=32, max=460, avg=233.23, stdev=60.04 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 236], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 317], 95.00th=[ 351], | 99.00th=[ 418], 99.50th=[ 439], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 43, max= 215, per=24.86%, avg=134.50, stdev=38.20, samples=76 iops : min= 10, max= 53, avg=33.07, stdev= 9.58, samples=76 lat (msec) : 50=0.04%, 100=0.08%, 250=68.67%, 500=31.21% cpu : usr=0.27%, sys=1.87%, ctx=4263, 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=189935: Thu Apr 30 15:33:37 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(4976KiB/38495msec) slat (msec): min=3, max=105, avg=16.92, stdev= 9.79 clat (msec): min=97, max=723, avg=228.28, stdev=67.55 lat (msec): min=114, max=733, avg=245.20, stdev=70.78 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 251], 80.00th=[ 275], 90.00th=[ 313], 95.00th=[ 355], | 99.00th=[ 464], 99.50th=[ 481], 99.90th=[ 550], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 39, max= 216, per=24.75%, avg=128.70, stdev=36.80, samples=76 iops : min= 9, max= 54, avg=31.62, stdev= 9.25, samples=76 write: IOPS=34, BW=137KiB/s (140kB/s)(5264KiB/38495msec); 0 zone resets slat (usec): min=50, max=15692, avg=415.93, stdev=1073.18 clat (msec): min=105, max=661, avg=233.00, stdev=64.73 lat (msec): min=105, max=662, avg=233.42, stdev=64.71 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 279], 90.00th=[ 321], 95.00th=[ 363], | 99.00th=[ 443], 99.50th=[ 464], 99.90th=[ 523], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 39, max= 230, per=25.26%, avg=136.67, stdev=38.56, samples=76 iops : min= 9, max= 57, avg=33.63, stdev= 9.75, samples=76 lat (msec) : 100=0.04%, 250=69.96%, 500=29.73%, 750=0.27% cpu : usr=0.25%, sys=1.82%, ctx=4379, 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=189936: Thu Apr 30 15:33:37 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(4984KiB/38534msec) slat (usec): min=3617, max=86037, avg=16723.84, stdev=9540.02 clat (msec): min=46, max=595, avg=228.07, stdev=69.78 lat (msec): min=55, max=677, avg=244.80, stdev=72.14 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 230], | 70.00th=[ 249], 80.00th=[ 279], 90.00th=[ 321], 95.00th=[ 372], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 575], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 58, max= 222, per=24.92%, avg=129.58, stdev=37.62, samples=76 iops : min= 14, max= 55, avg=31.84, stdev= 9.51, samples=76 write: IOPS=34, BW=136KiB/s (140kB/s)(5256KiB/38534msec); 0 zone resets slat (usec): min=53, max=13133, avg=423.31, stdev=1003.34 clat (msec): min=70, max=686, avg=233.16, stdev=68.22 lat (msec): min=70, max=686, avg=233.59, stdev=68.16 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 157], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 321], 95.00th=[ 368], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 39, max= 233, per=25.12%, avg=135.88, stdev=39.66, samples=76 iops : min= 9, max= 58, avg=33.43, stdev= 9.99, samples=76 lat (msec) : 50=0.04%, 100=0.16%, 250=69.49%, 500=30.00%, 750=0.31% cpu : usr=0.22%, sys=1.73%, ctx=4357, 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=189937: Thu Apr 30 15:33:37 2026 read: IOPS=32, BW=132KiB/s (135kB/s)(5060KiB/38434msec) slat (usec): min=59, max=98297, avg=16763.68, stdev=9985.32 clat (msec): min=24, max=599, avg=227.66, stdev=68.28 lat (msec): min=42, max=628, avg=244.43, stdev=71.25 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 251], 80.00th=[ 275], 90.00th=[ 317], 95.00th=[ 363], | 99.00th=[ 443], 99.50th=[ 460], 99.90th=[ 575], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 31, max= 194, per=25.20%, avg=131.04, stdev=33.33, samples=76 iops : min= 7, max= 48, avg=32.18, stdev= 8.41, samples=76 write: IOPS=33, BW=135KiB/s (138kB/s)(5180KiB/38434msec); 0 zone resets slat (usec): min=57, max=18456, avg=415.09, stdev=1069.58 clat (msec): min=95, max=801, avg=234.94, stdev=67.73 lat (msec): min=96, max=801, avg=235.35, stdev=67.72 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 157], 10.00th=[ 171], 20.00th=[ 186], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 275], 90.00th=[ 330], 95.00th=[ 372], | 99.00th=[ 447], 99.50th=[ 468], 99.90th=[ 743], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 47, max= 238, per=24.82%, avg=134.26, stdev=40.79, samples=76 iops : min= 11, max= 59, avg=33.01, stdev=10.26, samples=76 lat (msec) : 50=0.20%, 100=0.16%, 250=69.88%, 500=29.49%, 750=0.23% lat (msec) : 1000=0.04% cpu : usr=0.27%, sys=1.86%, ctx=4404, 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=520KiB/s (533kB/s), 129KiB/s-132KiB/s (132kB/s-135kB/s), io=19.6MiB (20.5MB), run=38434-38586msec WRITE: bw=541KiB/s (554kB/s), 135KiB/s-137KiB/s (138kB/s-140kB/s), io=20.4MiB (21.4MB), run=38434-38586msec 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=189947: Thu Apr 30 15:33:49 2026 read: IOPS=1, BW=46.2MiB/s (48.5MB/s)(40.0MiB/865msec) slat (nsec): min=35729k, max=35729k, avg=35729087.00, stdev= 0.00 clat (nsec): min=797036k, max=797036k, avg=797035570.00, stdev= 0.00 lat (nsec): min=832769k, max=832769k, avg=832768665.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.39%, ctx=5, 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=46.2MiB/s (48.5MB/s), 46.2MiB/s-46.2MiB/s (48.5MB/s-48.5MB/s), io=40.0MiB (41.9MB), run=865-865msec 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