== sanity test 398c: run fio to test AIO ================= 12:15:02 (1786205702) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.271723 s, 154 MB/s osc.lustre-OST0000-osc-ffff93f909e53800.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=195314: Sat Aug 8 12:15:20 2026 write: IOPS=195, BW=780KiB/s (799kB/s)(10.0MiB/13123msec); 0 zone resets slat (usec): min=41, max=3827, avg=257.64, stdev=310.14 clat (msec): min=9, max=226, avg=81.66, stdev=18.79 lat (msec): min=9, max=227, avg=81.92, stdev=18.79 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 69], | 30.00th=[ 72], 40.00th=[ 75], 50.00th=[ 80], 60.00th=[ 85], | 70.00th=[ 90], 80.00th=[ 96], 90.00th=[ 105], 95.00th=[ 113], | 99.00th=[ 131], 99.50th=[ 140], 99.90th=[ 188], 99.95th=[ 203], | 99.99th=[ 228] bw ( KiB/s): min= 517, max= 1177, per=25.32%, avg=782.40, stdev=133.69, samples=25 iops : min= 129, max= 294, avg=195.44, stdev=33.44, samples=25 lat (msec) : 10=0.08%, 20=0.20%, 50=2.42%, 100=82.38%, 250=14.92% cpu : usr=0.36%, sys=2.87%, ctx=2610, 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=195315: Sat Aug 8 12:15:20 2026 write: IOPS=193, BW=773KiB/s (791kB/s)(10.0MiB/13252msec); 0 zone resets slat (usec): min=35, max=3689, avg=214.91, stdev=248.28 clat (msec): min=18, max=131, avg=82.25, stdev=16.57 lat (msec): min=19, max=132, avg=82.46, stdev=16.57 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 69], | 30.00th=[ 72], 40.00th=[ 77], 50.00th=[ 81], 60.00th=[ 86], | 70.00th=[ 90], 80.00th=[ 96], 90.00th=[ 106], 95.00th=[ 111], | 99.00th=[ 124], 99.50th=[ 128], 99.90th=[ 131], 99.95th=[ 131], | 99.99th=[ 132] bw ( KiB/s): min= 549, max= 974, per=24.87%, avg=768.58, stdev=114.54, samples=26 iops : min= 137, max= 243, avg=191.96, stdev=28.66, samples=26 lat (msec) : 20=0.04%, 50=1.68%, 100=82.73%, 250=15.55% cpu : usr=0.29%, sys=2.42%, ctx=2547, 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=195316: Sat Aug 8 12:15:20 2026 write: IOPS=193, BW=773KiB/s (792kB/s)(10.0MiB/13245msec); 0 zone resets slat (usec): min=42, max=3941, avg=252.20, stdev=280.05 clat (msec): min=27, max=148, avg=82.18, stdev=17.02 lat (msec): min=27, max=148, avg=82.44, stdev=17.04 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 64], 20.00th=[ 69], | 30.00th=[ 73], 40.00th=[ 75], 50.00th=[ 80], 60.00th=[ 85], | 70.00th=[ 90], 80.00th=[ 96], 90.00th=[ 106], 95.00th=[ 113], | 99.00th=[ 128], 99.50th=[ 132], 99.90th=[ 136], 99.95th=[ 144], | 99.99th=[ 148] bw ( KiB/s): min= 533, max= 1012, per=24.94%, avg=770.50, stdev=116.92, samples=26 iops : min= 133, max= 253, avg=192.46, stdev=29.28, samples=26 lat (msec) : 50=1.56%, 100=82.62%, 250=15.82% cpu : usr=0.42%, sys=2.79%, ctx=2587, 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=195317: Sat Aug 8 12:15:20 2026 write: IOPS=193, BW=773KiB/s (791kB/s)(10.0MiB/13255msec); 0 zone resets slat (usec): min=42, max=4333, avg=247.65, stdev=269.27 clat (msec): min=19, max=195, avg=82.27, stdev=17.25 lat (msec): min=20, max=195, avg=82.52, stdev=17.26 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 69], | 30.00th=[ 73], 40.00th=[ 77], 50.00th=[ 80], 60.00th=[ 85], | 70.00th=[ 90], 80.00th=[ 96], 90.00th=[ 106], 95.00th=[ 113], | 99.00th=[ 127], 99.50th=[ 132], 99.90th=[ 157], 99.95th=[ 190], | 99.99th=[ 197] bw ( KiB/s): min= 525, max= 1019, per=24.95%, avg=771.08, stdev=116.96, samples=26 iops : min= 131, max= 254, avg=192.58, stdev=29.23, samples=26 lat (msec) : 20=0.04%, 50=1.52%, 100=83.40%, 250=15.04% cpu : usr=0.32%, sys=2.83%, ctx=2553, 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=3090KiB/s (3164kB/s), 773KiB/s-780KiB/s (791kB/s-799kB/s), io=40.0MiB (41.9MB), run=13123-13255msec 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=195328: Sat Aug 8 12:15:38 2026 read: IOPS=87, BW=350KiB/s (358kB/s)(5048KiB/14441msec) slat (usec): min=1751, max=24990, avg=5762.84, stdev=2420.04 clat (msec): min=12, max=165, avg=85.19, stdev=22.03 lat (msec): min=22, max=177, avg=90.96, stdev=23.16 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 66], | 30.00th=[ 71], 40.00th=[ 77], 50.00th=[ 83], 60.00th=[ 89], | 70.00th=[ 96], 80.00th=[ 106], 90.00th=[ 115], 95.00th=[ 124], | 99.00th=[ 146], 99.50th=[ 157], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 216, max= 455, per=24.96%, avg=346.75, stdev=67.60, samples=28 iops : min= 54, max= 113, avg=86.32, stdev=16.82, samples=28 write: IOPS=89, BW=360KiB/s (368kB/s)(5192KiB/14441msec); 0 zone resets slat (usec): min=42, max=3774, avg=266.89, stdev=302.71 clat (msec): min=32, max=194, avg=88.46, stdev=22.10 lat (msec): min=32, max=195, avg=88.73, stdev=22.12 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 63], 20.00th=[ 70], | 30.00th=[ 77], 40.00th=[ 81], 50.00th=[ 87], 60.00th=[ 92], | 70.00th=[ 99], 80.00th=[ 105], 90.00th=[ 117], 95.00th=[ 127], | 99.00th=[ 157], 99.50th=[ 167], 99.90th=[ 184], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 224, max= 552, per=24.82%, avg=358.86, stdev=77.53, samples=28 iops : min= 56, max= 138, avg=89.39, stdev=19.39, samples=28 lat (msec) : 20=0.04%, 50=1.80%, 100=72.50%, 250=25.66% cpu : usr=0.35%, sys=3.55%, ctx=4589, 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=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=195329: Sat Aug 8 12:15:38 2026 read: IOPS=86, BW=345KiB/s (353kB/s)(4976KiB/14432msec) slat (usec): min=1802, max=21371, avg=5771.86, stdev=2381.41 clat (msec): min=24, max=165, avg=85.94, stdev=21.85 lat (msec): min=31, max=173, avg=91.72, stdev=22.94 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 67], | 30.00th=[ 72], 40.00th=[ 79], 50.00th=[ 84], 60.00th=[ 89], | 70.00th=[ 97], 80.00th=[ 105], 90.00th=[ 115], 95.00th=[ 125], | 99.00th=[ 142], 99.50th=[ 153], 99.90th=[ 163], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 216, max= 504, per=24.67%, avg=342.68, stdev=69.15, samples=28 iops : min= 54, max= 126, avg=85.32, stdev=17.19, samples=28 write: IOPS=91, BW=365KiB/s (373kB/s)(5264KiB/14432msec); 0 zone resets slat (usec): min=56, max=3793, avg=260.31, stdev=304.03 clat (msec): min=36, max=182, avg=87.85, stdev=21.90 lat (msec): min=36, max=182, avg=88.11, stdev=21.92 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 69], | 30.00th=[ 75], 40.00th=[ 81], 50.00th=[ 87], 60.00th=[ 92], | 70.00th=[ 97], 80.00th=[ 105], 90.00th=[ 114], 95.00th=[ 126], | 99.00th=[ 161], 99.50th=[ 171], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 208, max= 558, per=25.12%, avg=363.18, stdev=77.15, samples=28 iops : min= 52, max= 139, avg=90.46, stdev=19.32, samples=28 lat (msec) : 50=1.48%, 100=73.40%, 250=25.12% cpu : usr=0.39%, sys=3.50%, ctx=4600, 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=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=195330: Sat Aug 8 12:15:38 2026 read: IOPS=86, BW=346KiB/s (354kB/s)(4984KiB/14400msec) slat (usec): min=68, max=20315, avg=5704.02, stdev=2479.07 clat (msec): min=9, max=164, avg=85.00, stdev=21.87 lat (msec): min=9, max=182, avg=90.71, stdev=23.10 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 66], | 30.00th=[ 72], 40.00th=[ 78], 50.00th=[ 84], 60.00th=[ 90], | 70.00th=[ 97], 80.00th=[ 104], 90.00th=[ 114], 95.00th=[ 123], | 99.00th=[ 142], 99.50th=[ 148], 99.90th=[ 153], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 208, max= 528, per=24.90%, avg=345.89, stdev=85.49, samples=28 iops : min= 52, max= 132, avg=86.14, stdev=21.33, samples=28 write: IOPS=91, BW=365KiB/s (374kB/s)(5256KiB/14400msec); 0 zone resets slat (usec): min=49, max=2379, avg=265.10, stdev=289.17 clat (msec): min=30, max=185, avg=88.74, stdev=22.89 lat (msec): min=30, max=185, avg=89.00, stdev=22.91 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 69], | 30.00th=[ 75], 40.00th=[ 83], 50.00th=[ 88], 60.00th=[ 93], | 70.00th=[ 100], 80.00th=[ 107], 90.00th=[ 116], 95.00th=[ 129], | 99.00th=[ 157], 99.50th=[ 169], 99.90th=[ 182], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 248, max= 520, per=25.06%, avg=362.32, stdev=64.62, samples=28 iops : min= 62, max= 130, avg=90.25, stdev=16.16, samples=28 lat (msec) : 10=0.08%, 20=0.04%, 50=2.15%, 100=71.45%, 250=26.29% cpu : usr=0.36%, sys=3.46%, ctx=4641, majf=0, minf=16 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=195331: Sat Aug 8 12:15:38 2026 read: IOPS=87, BW=350KiB/s (359kB/s)(5060KiB/14438msec) slat (usec): min=1916, max=23605, avg=5676.78, stdev=2414.28 clat (msec): min=24, max=195, avg=85.64, stdev=22.18 lat (msec): min=28, max=202, avg=91.32, stdev=23.25 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 61], 20.00th=[ 67], | 30.00th=[ 72], 40.00th=[ 79], 50.00th=[ 83], 60.00th=[ 89], | 70.00th=[ 96], 80.00th=[ 104], 90.00th=[ 114], 95.00th=[ 127], | 99.00th=[ 144], 99.50th=[ 157], 99.90th=[ 190], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 240, max= 502, per=25.12%, avg=348.86, stdev=67.19, samples=28 iops : min= 60, max= 125, avg=86.89, stdev=16.77, samples=28 write: IOPS=89, BW=359KiB/s (367kB/s)(5180KiB/14438msec); 0 zone resets slat (usec): min=42, max=3132, avg=267.53, stdev=314.52 clat (msec): min=21, max=175, avg=88.04, stdev=21.74 lat (msec): min=21, max=175, avg=88.31, stdev=21.78 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 58], 10.00th=[ 62], 20.00th=[ 69], | 30.00th=[ 75], 40.00th=[ 81], 50.00th=[ 88], 60.00th=[ 93], | 70.00th=[ 99], 80.00th=[ 106], 90.00th=[ 115], 95.00th=[ 126], | 99.00th=[ 153], 99.50th=[ 165], 99.90th=[ 169], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 232, max= 544, per=24.63%, avg=356.18, stdev=71.66, samples=28 iops : min= 58, max= 136, avg=88.68, stdev=17.85, samples=28 lat (msec) : 50=1.56%, 100=73.28%, 250=25.16% cpu : usr=0.37%, sys=3.56%, ctx=4693, majf=0, minf=16 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=1390KiB/s (1423kB/s), 345KiB/s-350KiB/s (353kB/s-359kB/s), io=19.6MiB (20.5MB), run=14400-14441msec WRITE: bw=1447KiB/s (1481kB/s), 359KiB/s-365KiB/s (367kB/s-374kB/s), io=20.4MiB (21.4MB), run=14400-14441msec 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=195338: Sat Aug 8 12:15:43 2026 read: IOPS=4, BW=168MiB/s (176MB/s)(40.0MiB/238msec) slat (nsec): min=17761k, max=17761k, avg=17761257.00, stdev= 0.00 clat (nsec): min=207967k, max=207967k, avg=207967346.00, stdev= 0.00 lat (nsec): min=225733k, max=225733k, avg=225733326.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 209], 60.00th=[ 209], | 70.00th=[ 209], 80.00th=[ 209], 90.00th=[ 209], 95.00th=[ 209], | 99.00th=[ 209], 99.50th=[ 209], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.91%, 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=168MiB/s (176MB/s), 168MiB/s-168MiB/s (176MB/s-176MB/s), io=40.0MiB (41.9MB), run=238-238msec 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