== sanity test 398c: run fio to test AIO ================= 00:33:04 (1788841984) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.340358 s, 123 MB/s osc.lustre-OST0000-osc-ffff8b6b8a262000.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=180352: Tue Sep 8 00:33:39 2026 write: IOPS=94, BW=377KiB/s (386kB/s)(10.0MiB/27169msec); 0 zone resets slat (usec): min=22, max=10346, avg=203.06, stdev=625.90 clat (msec): min=25, max=319, avg=169.04, stdev=50.22 lat (msec): min=26, max=320, avg=169.24, stdev=50.21 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 70], 10.00th=[ 103], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 236], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 321] bw ( KiB/s): min= 248, max= 830, per=24.97%, avg=376.32, stdev=112.18, samples=53 iops : min= 62, max= 207, avg=93.66, stdev=28.02, samples=53 lat (msec) : 50=0.08%, 100=9.41%, 250=84.73%, 500=5.78% cpu : usr=0.13%, sys=0.92%, ctx=2847, 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=180353: Tue Sep 8 00:33:39 2026 write: IOPS=94, BW=379KiB/s (388kB/s)(10.0MiB/27050msec); 0 zone resets slat (usec): min=27, max=15981, avg=228.56, stdev=759.47 clat (msec): min=20, max=378, avg=168.62, stdev=51.45 lat (msec): min=20, max=378, avg=168.85, stdev=51.42 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 72], 10.00th=[ 99], 20.00th=[ 129], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 240, max= 806, per=25.09%, avg=378.06, stdev=114.11, samples=53 iops : min= 60, max= 201, avg=94.09, stdev=28.48, samples=53 lat (msec) : 50=0.86%, 100=9.34%, 250=83.98%, 500=5.82% cpu : usr=0.20%, sys=1.20%, ctx=3102, 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=180354: Tue Sep 8 00:33:39 2026 write: IOPS=94, BW=377KiB/s (386kB/s)(10.0MiB/27168msec); 0 zone resets slat (usec): min=21, max=26633, avg=195.03, stdev=840.54 clat (msec): min=34, max=338, avg=169.08, stdev=49.87 lat (msec): min=34, max=338, avg=169.28, stdev=49.87 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 77], 10.00th=[ 102], 20.00th=[ 129], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 234], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 338] bw ( KiB/s): min= 184, max= 766, per=24.96%, avg=376.08, stdev=114.79, samples=53 iops : min= 46, max= 191, avg=93.62, stdev=28.68, samples=53 lat (msec) : 50=0.82%, 100=8.55%, 250=86.17%, 500=4.45% cpu : usr=0.16%, sys=0.88%, ctx=2321, 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=180355: Tue Sep 8 00:33:39 2026 write: IOPS=94, BW=378KiB/s (387kB/s)(10.0MiB/27116msec); 0 zone resets slat (usec): min=29, max=34517, avg=236.30, stdev=967.38 clat (msec): min=21, max=332, avg=168.82, stdev=51.19 lat (msec): min=21, max=332, avg=169.06, stdev=51.14 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 72], 10.00th=[ 102], 20.00th=[ 130], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 207], 90.00th=[ 236], 95.00th=[ 257], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 216, max= 798, per=25.02%, avg=377.09, stdev=114.35, samples=53 iops : min= 54, max= 199, avg=93.87, stdev=28.55, samples=53 lat (msec) : 50=0.78%, 100=8.95%, 250=83.01%, 500=7.27% cpu : usr=0.17%, sys=1.03%, ctx=2932, 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=1508KiB/s (1544kB/s), 377KiB/s-379KiB/s (386kB/s-388kB/s), io=40.0MiB (41.9MB), run=27050-27169msec 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=180369: Tue Sep 8 00:34:15 2026 read: IOPS=42, BW=172KiB/s (176kB/s)(5048KiB/29353msec) slat (usec): min=2607, max=54859, avg=12241.99, stdev=6305.22 clat (msec): min=60, max=286, avg=172.71, stdev=38.50 lat (msec): min=67, max=305, avg=184.95, stdev=39.92 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 76, max= 256, per=25.07%, avg=171.26, stdev=42.11, samples=58 iops : min= 19, max= 64, avg=42.36, stdev=10.53, samples=58 write: IOPS=44, BW=177KiB/s (181kB/s)(5192KiB/29353msec); 0 zone resets slat (usec): min=33, max=24236, avg=226.53, stdev=941.75 clat (msec): min=75, max=312, avg=178.48, stdev=38.04 lat (msec): min=75, max=312, avg=178.71, stdev=38.05 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 45, max= 296, per=24.83%, avg=176.53, stdev=42.43, samples=58 iops : min= 11, max= 74, avg=43.71, stdev=10.64, samples=58 lat (msec) : 100=1.95%, 250=95.16%, 500=2.89% cpu : usr=0.27%, sys=1.60%, ctx=4356, 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=180370: Tue Sep 8 00:34:15 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(4976KiB/29272msec) slat (usec): min=2997, max=53383, avg=12445.10, stdev=6393.32 clat (msec): min=35, max=347, avg=174.38, stdev=39.00 lat (msec): min=40, max=363, avg=186.83, stdev=40.68 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 113], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 69, max= 312, per=24.77%, avg=169.19, stdev=42.27, samples=58 iops : min= 17, max= 78, avg=41.84, stdev=10.66, samples=58 write: IOPS=44, BW=180KiB/s (184kB/s)(5264KiB/29272msec); 0 zone resets slat (usec): min=30, max=13283, avg=219.29, stdev=691.85 clat (msec): min=77, max=322, avg=177.13, stdev=38.35 lat (msec): min=77, max=322, avg=177.35, stdev=38.36 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 108, max= 279, per=25.28%, avg=179.74, stdev=42.37, samples=58 iops : min= 27, max= 69, avg=44.50, stdev=10.57, samples=58 lat (msec) : 50=0.04%, 100=1.56%, 250=94.84%, 500=3.55% cpu : usr=0.25%, sys=1.76%, ctx=4250, 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=180371: Tue Sep 8 00:34:15 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(4984KiB/29338msec) slat (usec): min=2660, max=63168, avg=12127.97, stdev=6122.66 clat (msec): min=60, max=328, avg=173.65, stdev=40.71 lat (msec): min=69, max=336, avg=185.78, stdev=41.84 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 239], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 53, max= 296, per=24.88%, avg=169.90, stdev=44.56, samples=58 iops : min= 13, max= 74, avg=42.02, stdev=11.17, samples=58 write: IOPS=44, BW=179KiB/s (183kB/s)(5256KiB/29338msec); 0 zone resets slat (usec): min=34, max=31730, avg=277.38, stdev=1206.50 clat (msec): min=78, max=326, avg=177.99, stdev=37.92 lat (msec): min=78, max=326, avg=178.27, stdev=37.94 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 118], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 83, max= 296, per=25.08%, avg=178.31, stdev=44.16, samples=58 iops : min= 20, max= 74, avg=44.14, stdev=11.08, samples=58 lat (msec) : 100=2.03%, 250=95.08%, 500=2.89% cpu : usr=0.23%, sys=1.86%, ctx=4646, 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=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=180372: Tue Sep 8 00:34:15 2026 read: IOPS=43, BW=173KiB/s (178kB/s)(5060KiB/29184msec) slat (usec): min=38, max=52250, avg=12208.63, stdev=6285.61 clat (msec): min=21, max=294, avg=172.91, stdev=40.93 lat (msec): min=21, max=314, avg=185.13, stdev=42.39 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 284], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 111, max= 336, per=25.23%, avg=172.33, stdev=41.02, samples=58 iops : min= 27, max= 84, avg=42.62, stdev=10.30, samples=58 write: IOPS=44, BW=177KiB/s (182kB/s)(5180KiB/29184msec); 0 zone resets slat (usec): min=34, max=6033, avg=228.60, stdev=520.49 clat (msec): min=67, max=335, avg=178.89, stdev=38.61 lat (msec): min=68, max=335, avg=179.12, stdev=38.59 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 230], 95.00th=[ 245], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 300], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 103, max= 263, per=24.83%, avg=176.55, stdev=39.48, samples=58 iops : min= 25, max= 65, avg=43.69, stdev= 9.89, samples=58 lat (msec) : 50=0.16%, 100=1.95%, 250=93.98%, 500=3.91% cpu : usr=0.30%, sys=1.88%, ctx=4592, 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=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=684KiB/s (700kB/s), 170KiB/s-173KiB/s (174kB/s-178kB/s), io=19.6MiB (20.5MB), run=29184-29353msec WRITE: bw=712KiB/s (729kB/s), 177KiB/s-180KiB/s (181kB/s-184kB/s), io=20.4MiB (21.4MB), run=29184-29353msec 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=180380: Tue Sep 8 00:34:23 2026 read: IOPS=1, BW=72.6MiB/s (76.1MB/s)(40.0MiB/551msec) slat (nsec): min=51109k, max=51109k, avg=51109128.00, stdev= 0.00 clat (nsec): min=484561k, max=484561k, avg=484560992.00, stdev= 0.00 lat (nsec): min=535674k, max=535674k, avg=535673842.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.00%, ctx=6, 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=72.6MiB/s (76.1MB/s), 72.6MiB/s-72.6MiB/s (76.1MB/s-76.1MB/s), io=40.0MiB (41.9MB), run=551-551msec 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