== sanity test 398c: run fio to test AIO ================= 11:26:19 (1779981979) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.397007 s, 106 MB/s osc.lustre-OST0000-osc-ffff9b5b4c0b8800.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=184148: Thu May 28 11:26:58 2026 write: IOPS=82, BW=331KiB/s (339kB/s)(10.0MiB/30901msec); 0 zone resets slat (usec): min=36, max=19640, avg=339.12, stdev=1020.36 clat (msec): min=30, max=318, avg=192.07, stdev=46.92 lat (msec): min=30, max=318, avg=192.41, stdev=46.94 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 182, max= 479, per=24.79%, avg=328.48, stdev=66.56, samples=61 iops : min= 45, max= 119, avg=81.66, stdev=16.64, samples=61 lat (msec) : 50=0.08%, 100=1.99%, 250=88.05%, 500=9.88% cpu : usr=0.14%, sys=1.08%, ctx=2440, 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=184149: Thu May 28 11:26:58 2026 write: IOPS=83, BW=332KiB/s (340kB/s)(10.0MiB/30832msec); 0 zone resets slat (usec): min=44, max=19426, avg=354.32, stdev=1082.41 clat (msec): min=26, max=335, avg=192.16, stdev=47.80 lat (msec): min=26, max=335, avg=192.52, stdev=47.82 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 334] bw ( KiB/s): min= 198, max= 571, per=24.93%, avg=330.26, stdev=69.38, samples=61 iops : min= 49, max= 142, avg=82.10, stdev=17.33, samples=61 lat (msec) : 50=0.16%, 100=2.07%, 250=86.02%, 500=11.76% cpu : usr=0.17%, sys=1.31%, ctx=2712, 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=184150: Thu May 28 11:26:58 2026 write: IOPS=82, BW=331KiB/s (339kB/s)(10.0MiB/30894msec); 0 zone resets slat (usec): min=37, max=26123, avg=328.13, stdev=1026.19 clat (msec): min=33, max=334, avg=192.11, stdev=47.15 lat (msec): min=33, max=334, avg=192.44, stdev=47.15 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 117], 10.00th=[ 133], 20.00th=[ 153], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 266], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 222, max= 512, per=24.79%, avg=328.46, stdev=68.16, samples=61 iops : min= 55, max= 128, avg=81.67, stdev=17.04, samples=61 lat (msec) : 50=0.43%, 100=2.38%, 250=85.98%, 500=11.21% cpu : usr=0.15%, sys=1.12%, ctx=2546, 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=184151: Thu May 28 11:26:58 2026 write: IOPS=82, BW=331KiB/s (339kB/s)(10.0MiB/30903msec); 0 zone resets slat (usec): min=49, max=18594, avg=368.46, stdev=1122.26 clat (msec): min=16, max=336, avg=191.92, stdev=46.90 lat (msec): min=17, max=336, avg=192.29, stdev=46.92 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 220], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 238, max= 506, per=24.78%, avg=328.38, stdev=64.19, samples=61 iops : min= 59, max= 126, avg=81.64, stdev=16.05, samples=61 lat (msec) : 20=0.08%, 50=0.08%, 100=1.13%, 250=87.66%, 500=11.05% cpu : usr=0.20%, sys=1.29%, ctx=3013, 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=1325KiB/s (1357kB/s), 331KiB/s-332KiB/s (339kB/s-340kB/s), io=40.0MiB (41.9MB), run=30832-30903msec 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=184166: Thu May 28 11:27:35 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5048KiB/31078msec) slat (usec): min=2499, max=65334, avg=14005.42, stdev=7709.62 clat (msec): min=53, max=334, avg=184.30, stdev=42.12 lat (msec): min=63, max=340, avg=198.31, stdev=43.50 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 91, max= 247, per=25.07%, avg=161.70, stdev=32.26, samples=61 iops : min= 22, max= 61, avg=39.87, stdev= 8.15, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31078msec); 0 zone resets slat (usec): min=55, max=16033, avg=318.95, stdev=832.86 clat (msec): min=73, max=356, avg=187.16, stdev=38.17 lat (msec): min=74, max=356, avg=187.49, stdev=38.18 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 251], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 88, max= 255, per=24.82%, avg=166.77, stdev=40.15, samples=61 iops : min= 22, max= 63, avg=41.16, stdev=10.06, samples=61 lat (msec) : 100=1.05%, 250=92.89%, 500=6.05% cpu : usr=0.18%, sys=1.93%, ctx=4570, 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=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=184167: Thu May 28 11:27:35 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4976KiB/31035msec) slat (usec): min=3041, max=63817, avg=13891.49, stdev=7768.42 clat (msec): min=26, max=337, avg=183.09, stdev=42.12 lat (msec): min=33, max=363, avg=196.99, stdev=43.72 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 326], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 88, max= 232, per=24.74%, avg=159.57, stdev=36.01, samples=61 iops : min= 22, max= 58, avg=39.34, stdev= 9.02, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5264KiB/31035msec); 0 zone resets slat (usec): min=52, max=18669, avg=333.90, stdev=939.11 clat (msec): min=61, max=357, avg=188.92, stdev=40.47 lat (msec): min=61, max=357, avg=189.26, stdev=40.53 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 87, max= 254, per=25.21%, avg=169.39, stdev=40.86, samples=61 iops : min= 21, max= 63, avg=41.80, stdev=10.23, samples=61 lat (msec) : 50=0.08%, 100=0.86%, 250=92.23%, 500=6.84% cpu : usr=0.25%, sys=2.02%, ctx=4485, 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=184168: Thu May 28 11:27:35 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4984KiB/30974msec) slat (usec): min=78, max=63783, avg=13999.21, stdev=8006.45 clat (msec): min=22, max=386, avg=183.62, stdev=43.06 lat (msec): min=22, max=402, avg=197.63, stdev=44.61 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 72, max= 238, per=24.97%, avg=161.03, stdev=35.35, samples=61 iops : min= 18, max= 59, avg=39.74, stdev= 8.84, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5256KiB/30974msec); 0 zone resets slat (usec): min=52, max=10643, avg=318.44, stdev=677.57 clat (msec): min=45, max=369, avg=188.79, stdev=40.78 lat (msec): min=46, max=369, avg=189.11, stdev=40.80 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 80, max= 248, per=25.21%, avg=169.41, stdev=42.22, samples=61 iops : min= 20, max= 62, avg=41.80, stdev=10.61, samples=61 lat (msec) : 50=0.20%, 100=0.82%, 250=92.66%, 500=6.33% cpu : usr=0.24%, sys=2.00%, ctx=4540, 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=184169: Thu May 28 11:27:35 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/31039msec) slat (usec): min=2624, max=55158, avg=13884.78, stdev=7684.24 clat (msec): min=44, max=349, avg=181.64, stdev=40.82 lat (msec): min=51, max=365, avg=195.54, stdev=42.31 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 246, per=25.27%, avg=163.02, stdev=36.43, samples=61 iops : min= 17, max= 61, avg=40.23, stdev= 9.14, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/31039msec); 0 zone resets slat (usec): min=40, max=15612, avg=326.66, stdev=835.66 clat (msec): min=85, max=346, avg=189.61, stdev=40.21 lat (msec): min=85, max=346, avg=189.95, stdev=40.23 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 91, max= 248, per=24.74%, avg=166.26, stdev=36.03, samples=61 iops : min= 22, max= 62, avg=41.00, stdev= 9.06, samples=61 lat (msec) : 50=0.04%, 100=0.82%, 250=92.27%, 500=6.88% cpu : usr=0.29%, sys=1.96%, ctx=4381, 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=646KiB/s (661kB/s), 160KiB/s-163KiB/s (164kB/s-167kB/s), io=19.6MiB (20.5MB), run=30974-31078msec WRITE: bw=672KiB/s (688kB/s), 167KiB/s-170KiB/s (171kB/s-174kB/s), io=20.4MiB (21.4MB), run=30974-31078msec 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=184177: Thu May 28 11:27:45 2026 read: IOPS=2, BW=92.6MiB/s (97.1MB/s)(40.0MiB/432msec) slat (nsec): min=35707k, max=35707k, avg=35707396.00, stdev= 0.00 clat (nsec): min=365974k, max=365974k, avg=365973807.00, stdev= 0.00 lat (nsec): min=401685k, max=401685k, avg=401685433.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.46%, sys=3.02%, ctx=8, majf=0, minf=7 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=92.6MiB/s (97.1MB/s), 92.6MiB/s-92.6MiB/s (97.1MB/s-97.1MB/s), io=40.0MiB (41.9MB), run=432-432msec 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