== sanity test 398c: run fio to test AIO ================= 01:51:06 (1786081866) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.474082 s, 88.5 MB/s osc.lustre-OST0000-osc-ffff8b7b11b22000.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=180318: Fri Aug 7 01:51:45 2026 write: IOPS=85, BW=342KiB/s (350kB/s)(10.0MiB/29957msec); 0 zone resets slat (usec): min=50, max=23268, avg=384.43, stdev=991.61 clat (msec): min=18, max=373, avg=186.59, stdev=38.07 lat (msec): min=18, max=373, avg=186.98, stdev=38.06 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 136], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 376] bw ( KiB/s): min= 231, max= 488, per=25.07%, avg=340.71, stdev=56.46, samples=59 iops : min= 57, max= 122, avg=84.81, stdev=14.19, samples=59 lat (msec) : 20=0.04%, 50=0.08%, 100=1.02%, 250=93.36%, 500=5.51% cpu : usr=0.23%, sys=1.33%, ctx=2844, 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=180319: Fri Aug 7 01:51:45 2026 write: IOPS=85, BW=340KiB/s (348kB/s)(10.0MiB/30113msec); 0 zone resets slat (usec): min=41, max=13943, avg=359.01, stdev=831.77 clat (msec): min=19, max=321, avg=187.15, stdev=37.79 lat (msec): min=19, max=321, avg=187.51, stdev=37.75 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 133], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 236], 95.00th=[ 249], | 99.00th=[ 279], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 254, max= 453, per=25.01%, avg=339.93, stdev=50.25, samples=59 iops : min= 63, max= 113, avg=84.63, stdev=12.59, samples=59 lat (msec) : 20=0.04%, 50=0.23%, 100=0.70%, 250=94.30%, 500=4.73% cpu : usr=0.18%, sys=1.36%, ctx=3034, 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=180320: Fri Aug 7 01:51:45 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30064msec); 0 zone resets slat (usec): min=47, max=17565, avg=351.89, stdev=855.93 clat (msec): min=21, max=328, avg=187.14, stdev=38.32 lat (msec): min=26, max=329, avg=187.49, stdev=38.28 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 134], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 239, max= 503, per=24.99%, avg=339.68, stdev=57.36, samples=59 iops : min= 59, max= 125, avg=84.56, stdev=14.34, samples=59 lat (msec) : 50=0.20%, 100=0.66%, 250=92.77%, 500=6.37% cpu : usr=0.20%, sys=1.27%, ctx=2633, 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=180321: Fri Aug 7 01:51:45 2026 write: IOPS=84, BW=340KiB/s (348kB/s)(10.0MiB/30119msec); 0 zone resets slat (usec): min=49, max=17095, avg=325.46, stdev=878.24 clat (msec): min=22, max=318, avg=187.15, stdev=37.48 lat (msec): min=22, max=318, avg=187.47, stdev=37.48 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 134], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 317] bw ( KiB/s): min= 247, max= 463, per=24.98%, avg=339.42, stdev=52.61, samples=59 iops : min= 61, max= 115, avg=84.49, stdev=13.17, samples=59 lat (msec) : 50=0.12%, 100=0.70%, 250=93.71%, 500=5.47% cpu : usr=0.13%, sys=1.18%, ctx=2519, 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=1360KiB/s (1393kB/s), 340KiB/s-342KiB/s (348kB/s-350kB/s), io=40.0MiB (41.9MB), run=29957-30119msec 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=180336: Fri Aug 7 01:52:23 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(5048KiB/29632msec) slat (usec): min=3363, max=55493, avg=12941.54, stdev=6585.92 clat (msec): min=17, max=333, avg=173.11, stdev=40.44 lat (msec): min=29, max=362, avg=186.06, stdev=41.77 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 116], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 104, max= 255, per=24.85%, avg=168.22, stdev=38.36, samples=58 iops : min= 26, max= 63, avg=41.52, stdev= 9.59, samples=58 write: IOPS=43, BW=175KiB/s (179kB/s)(5192KiB/29632msec); 0 zone resets slat (usec): min=52, max=23840, avg=367.80, stdev=1017.31 clat (msec): min=17, max=321, avg=181.61, stdev=39.44 lat (msec): min=17, max=321, avg=181.99, stdev=39.43 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 87, max= 303, per=24.68%, avg=174.00, stdev=39.84, samples=58 iops : min= 21, max= 75, avg=42.98, stdev=10.03, samples=58 lat (msec) : 20=0.08%, 50=0.27%, 100=0.98%, 250=94.45%, 500=4.22% cpu : usr=0.22%, sys=2.10%, ctx=4495, 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=180337: Fri Aug 7 01:52:23 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(4976KiB/29595msec) slat (usec): min=2669, max=56121, avg=13089.27, stdev=6775.02 clat (msec): min=9, max=365, avg=174.40, stdev=39.63 lat (msec): min=23, max=378, avg=187.50, stdev=41.02 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 330], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 71, max= 271, per=24.65%, avg=166.90, stdev=38.25, samples=58 iops : min= 17, max= 67, avg=41.19, stdev= 9.63, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5264KiB/29595msec); 0 zone resets slat (usec): min=49, max=11312, avg=315.96, stdev=666.92 clat (msec): min=24, max=304, avg=180.39, stdev=38.69 lat (msec): min=24, max=305, avg=180.71, stdev=38.67 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 134], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 249], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 95, max= 256, per=25.24%, avg=177.93, stdev=38.83, samples=58 iops : min= 23, max= 64, avg=43.95, stdev= 9.77, samples=58 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=1.17%, 250=94.61% lat (msec) : 500=4.10% cpu : usr=0.27%, sys=2.03%, ctx=4463, 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=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=180338: Fri Aug 7 01:52:23 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(4984KiB/29597msec) slat (usec): min=3212, max=54135, avg=12939.07, stdev=6745.41 clat (msec): min=29, max=354, avg=173.29, stdev=39.95 lat (msec): min=36, max=376, avg=186.24, stdev=41.24 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 95, max= 279, per=24.77%, avg=167.71, stdev=38.28, samples=58 iops : min= 23, max= 69, avg=41.40, stdev= 9.64, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5256KiB/29597msec); 0 zone resets slat (usec): min=49, max=15657, avg=384.15, stdev=960.29 clat (msec): min=52, max=309, avg=181.23, stdev=38.41 lat (msec): min=53, max=309, avg=181.62, stdev=38.38 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 111, max= 271, per=25.02%, avg=176.36, stdev=36.22, samples=58 iops : min= 27, max= 67, avg=43.55, stdev= 9.11, samples=58 lat (msec) : 50=0.04%, 100=1.02%, 250=94.38%, 500=4.57% cpu : usr=0.32%, sys=2.05%, ctx=4724, 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=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=180339: Fri Aug 7 01:52:23 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5060KiB/29609msec) slat (usec): min=89, max=48136, avg=12906.47, stdev=6854.83 clat (msec): min=17, max=302, avg=174.12, stdev=40.74 lat (msec): min=17, max=329, avg=187.03, stdev=41.99 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 87, max= 248, per=25.12%, avg=170.03, stdev=36.93, samples=58 iops : min= 21, max= 62, avg=41.98, stdev= 9.32, samples=58 write: IOPS=43, BW=175KiB/s (179kB/s)(5180KiB/29609msec); 0 zone resets slat (usec): min=59, max=15433, avg=356.97, stdev=774.39 clat (msec): min=36, max=307, avg=182.28, stdev=37.94 lat (msec): min=38, max=308, avg=182.64, stdev=37.88 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 127], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 95, max= 255, per=24.65%, avg=173.79, stdev=35.45, samples=58 iops : min= 23, max= 63, avg=42.90, stdev= 8.86, samples=58 lat (msec) : 20=0.12%, 50=0.12%, 100=0.98%, 250=93.98%, 500=4.80% cpu : usr=0.29%, sys=2.09%, ctx=4652, 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=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=677KiB/s (693kB/s), 168KiB/s-171KiB/s (172kB/s-175kB/s), io=19.6MiB (20.5MB), run=29595-29632msec WRITE: bw=705KiB/s (722kB/s), 175KiB/s-178KiB/s (179kB/s-182kB/s), io=20.4MiB (21.4MB), run=29595-29632msec 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=180349: Fri Aug 7 01:52:34 2026 read: IOPS=1, BW=73.3MiB/s (76.8MB/s)(40.0MiB/546msec) slat (nsec): min=59854k, max=59854k, avg=59853604.00, stdev= 0.00 clat (nsec): min=447122k, max=447122k, avg=447122047.00, stdev= 0.00 lat (nsec): min=507032k, max=507032k, avg=507031886.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.83%, ctx=6, 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=73.3MiB/s (76.8MB/s), 73.3MiB/s-73.3MiB/s (76.8MB/s-76.8MB/s), io=40.0MiB (41.9MB), run=546-546msec 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