== sanity test 398c: run fio to test AIO ================= 06:26:09 (1778840769) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.193313 s, 217 MB/s osc.lustre-OST0000-osc-ffff8d075019a000.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=161414: Fri May 15 06:26:44 2026 write: IOPS=79, BW=319KiB/s (327kB/s)(10.0MiB/32077msec); 0 zone resets slat (usec): min=62, max=764, avg=209.05, stdev=93.48 clat (msec): min=83, max=325, avg=200.05, stdev=38.77 lat (msec): min=83, max=326, avg=200.26, stdev=38.76 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 247], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 326] bw ( KiB/s): min= 216, max= 511, per=24.88%, avg=317.44, stdev=53.12, samples=63 iops : min= 54, max= 127, avg=79.35, stdev=13.24, samples=63 lat (msec) : 100=1.37%, 250=90.43%, 500=8.20% cpu : usr=0.12%, sys=1.32%, ctx=2881, 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=161415: Fri May 15 06:26:44 2026 write: IOPS=79, BW=319KiB/s (327kB/s)(10.0MiB/32067msec); 0 zone resets slat (usec): min=47, max=738, avg=211.48, stdev=90.28 clat (msec): min=54, max=324, avg=199.95, stdev=38.74 lat (msec): min=54, max=324, avg=200.16, stdev=38.74 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 249], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 326] bw ( KiB/s): min= 232, max= 511, per=24.94%, avg=318.21, stdev=52.90, samples=63 iops : min= 58, max= 127, avg=79.54, stdev=13.18, samples=63 lat (msec) : 100=1.37%, 250=89.80%, 500=8.83% cpu : usr=0.13%, sys=1.33%, ctx=2975, 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=161416: Fri May 15 06:26:44 2026 write: IOPS=79, BW=320KiB/s (327kB/s)(10.0MiB/32032msec); 0 zone resets slat (usec): min=40, max=752, avg=198.41, stdev=89.95 clat (msec): min=42, max=327, avg=199.89, stdev=39.63 lat (msec): min=43, max=327, avg=200.09, stdev=39.65 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 129], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 247], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 330] bw ( KiB/s): min= 232, max= 512, per=24.99%, avg=318.83, stdev=53.33, samples=63 iops : min= 58, max= 128, avg=79.70, stdev=13.30, samples=63 lat (msec) : 50=0.62%, 100=0.70%, 250=89.96%, 500=8.71% cpu : usr=0.12%, sys=1.31%, ctx=2704, 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=161417: Fri May 15 06:26:44 2026 write: IOPS=79, BW=320KiB/s (327kB/s)(10.0MiB/32043msec); 0 zone resets slat (usec): min=55, max=820, avg=216.64, stdev=93.46 clat (msec): min=24, max=364, avg=199.84, stdev=40.13 lat (msec): min=24, max=364, avg=200.06, stdev=40.13 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 247], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 363] bw ( KiB/s): min= 232, max= 548, per=24.98%, avg=318.79, stdev=52.90, samples=63 iops : min= 58, max= 137, avg=79.70, stdev=13.22, samples=63 lat (msec) : 50=0.27%, 100=1.21%, 250=89.69%, 500=8.83% cpu : usr=0.11%, sys=1.38%, ctx=2992, 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=1277KiB/s (1308kB/s), 319KiB/s-320KiB/s (327kB/s-327kB/s), io=40.0MiB (41.9MB), run=32032-32077msec 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=161432: Fri May 15 06:27:09 2026 read: IOPS=58, BW=232KiB/s (238kB/s)(5048KiB/21720msec) slat (usec): min=136, max=8562, avg=2888.67, stdev=1071.52 clat (msec): min=5, max=200, avg=84.30, stdev=16.13 lat (msec): min=9, max=204, avg=87.19, stdev=16.21 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 64], 10.00th=[ 67], 20.00th=[ 74], | 30.00th=[ 79], 40.00th=[ 82], 50.00th=[ 85], 60.00th=[ 88], | 70.00th=[ 92], 80.00th=[ 95], 90.00th=[ 102], 95.00th=[ 106], | 99.00th=[ 117], 99.50th=[ 142], 99.90th=[ 199], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 144, max= 320, per=25.28%, avg=232.35, stdev=48.18, samples=43 iops : min= 36, max= 80, avg=58.07, stdev=12.04, samples=43 write: IOPS=59, BW=239KiB/s (245kB/s)(5192KiB/21720msec); 0 zone resets slat (usec): min=62, max=778, avg=177.05, stdev=82.44 clat (msec): min=47, max=296, avg=182.48, stdev=41.68 lat (msec): min=47, max=297, avg=182.66, stdev=41.67 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 115], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 168, max= 320, per=24.88%, avg=238.14, stdev=34.25, samples=43 iops : min= 42, max= 80, avg=59.53, stdev= 8.56, samples=43 lat (msec) : 10=0.12%, 20=0.35%, 50=0.23%, 100=43.83%, 250=52.81% lat (msec) : 500=2.66% cpu : usr=0.12%, sys=1.97%, ctx=4992, 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=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=161433: Fri May 15 06:27:09 2026 read: IOPS=57, BW=228KiB/s (233kB/s)(4976KiB/21822msec) slat (usec): min=996, max=9048, avg=2872.67, stdev=1033.18 clat (msec): min=3, max=141, avg=83.89, stdev=14.39 lat (msec): min=6, max=142, avg=86.77, stdev=14.46 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 64], 10.00th=[ 68], 20.00th=[ 74], | 30.00th=[ 79], 40.00th=[ 82], 50.00th=[ 85], 60.00th=[ 88], | 70.00th=[ 91], 80.00th=[ 95], 90.00th=[ 102], 95.00th=[ 105], | 99.00th=[ 116], 99.50th=[ 117], 99.90th=[ 132], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 104, max= 328, per=24.75%, avg=227.44, stdev=48.84, samples=43 iops : min= 26, max= 82, avg=56.86, stdev=12.21, samples=43 write: IOPS=60, BW=241KiB/s (247kB/s)(5264KiB/21822msec); 0 zone resets slat (usec): min=63, max=795, avg=175.91, stdev=80.23 clat (msec): min=79, max=296, avg=182.16, stdev=39.41 lat (msec): min=79, max=296, avg=182.33, stdev=39.41 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 247], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 176, max= 320, per=25.19%, avg=241.05, stdev=31.79, samples=43 iops : min= 44, max= 80, avg=60.26, stdev= 7.96, samples=43 lat (msec) : 4=0.04%, 10=0.16%, 20=0.20%, 50=0.20%, 100=42.85% lat (msec) : 250=54.45%, 500=2.11% cpu : usr=0.14%, sys=1.92%, ctx=4927, 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=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=161434: Fri May 15 06:27:09 2026 read: IOPS=57, BW=228KiB/s (234kB/s)(4984KiB/21822msec) slat (usec): min=1089, max=7747, avg=2930.19, stdev=1056.88 clat (usec): min=1666, max=128600, avg=84272.64, stdev=14833.64 lat (msec): min=3, max=131, avg=87.20, stdev=14.93 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 74], | 30.00th=[ 80], 40.00th=[ 82], 50.00th=[ 85], 60.00th=[ 88], | 70.00th=[ 92], 80.00th=[ 96], 90.00th=[ 102], 95.00th=[ 106], | 99.00th=[ 115], 99.50th=[ 116], 99.90th=[ 123], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 136, max= 344, per=24.87%, avg=228.51, stdev=48.90, samples=43 iops : min= 34, max= 86, avg=57.12, stdev=12.23, samples=43 write: IOPS=60, BW=241KiB/s (247kB/s)(5256KiB/21822msec); 0 zone resets slat (usec): min=62, max=712, avg=177.18, stdev=80.44 clat (msec): min=50, max=290, avg=182.09, stdev=40.36 lat (msec): min=51, max=290, avg=182.27, stdev=40.36 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 215], 90.00th=[ 232], 95.00th=[ 249], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 184, max= 304, per=24.93%, avg=238.56, stdev=29.90, samples=43 iops : min= 46, max= 76, avg=59.63, stdev= 7.49, samples=43 lat (msec) : 2=0.04%, 4=0.04%, 10=0.08%, 20=0.39%, 50=0.16% lat (msec) : 100=42.93%, 250=54.02%, 500=2.34% cpu : usr=0.14%, sys=1.90%, ctx=4974, 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=161435: Fri May 15 06:27:09 2026 read: IOPS=58, BW=232KiB/s (238kB/s)(5060KiB/21771msec) slat (usec): min=1022, max=7780, avg=2902.37, stdev=1056.73 clat (msec): min=2, max=192, avg=84.20, stdev=14.81 lat (msec): min=6, max=195, avg=87.10, stdev=14.88 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 73], | 30.00th=[ 79], 40.00th=[ 81], 50.00th=[ 85], 60.00th=[ 88], | 70.00th=[ 91], 80.00th=[ 95], 90.00th=[ 102], 95.00th=[ 106], | 99.00th=[ 118], 99.50th=[ 124], 99.90th=[ 176], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 144, max= 320, per=25.40%, avg=233.42, stdev=45.85, samples=43 iops : min= 36, max= 80, avg=58.35, stdev=11.47, samples=43 write: IOPS=59, BW=238KiB/s (244kB/s)(5180KiB/21771msec); 0 zone resets slat (usec): min=56, max=1901, avg=174.25, stdev=99.59 clat (msec): min=83, max=306, avg=182.77, stdev=38.78 lat (msec): min=83, max=306, avg=182.95, stdev=38.78 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 176, max= 304, per=24.84%, avg=237.74, stdev=29.32, samples=43 iops : min= 44, max= 76, avg=59.42, stdev= 7.36, samples=43 lat (msec) : 4=0.08%, 10=0.08%, 20=0.12%, 50=0.16%, 100=43.48% lat (msec) : 250=53.75%, 500=2.34% cpu : usr=0.17%, sys=1.87%, ctx=4878, 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=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=920KiB/s (942kB/s), 228KiB/s-232KiB/s (233kB/s-238kB/s), io=19.6MiB (20.5MB), run=21720-21822msec WRITE: bw=957KiB/s (980kB/s), 238KiB/s-241KiB/s (244kB/s-247kB/s), io=20.4MiB (21.4MB), run=21720-21822msec 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=161442: Fri May 15 06:27:12 2026 read: IOPS=6, BW=276MiB/s (289MB/s)(40.0MiB/145msec) slat (nsec): min=9295.8k, max=9295.8k, avg=9295793.00, stdev= 0.00 clat (nsec): min=128638k, max=128638k, avg=128638021.00, stdev= 0.00 lat (nsec): min=137937k, max=137937k, avg=137936624.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 129], 95.00th=[ 129], | 99.00th=[ 129], 99.50th=[ 129], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.25%, ctx=38, 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=276MiB/s (289MB/s), 276MiB/s-276MiB/s (289MB/s-289MB/s), io=40.0MiB (41.9MB), run=145-145msec 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