== sanity test 398c: run fio to test AIO ================= 21:47:14 (1767322034) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.529884 s, 79.2 MB/s osc.lustre-OST0000-osc-ffff9814cbb11000.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=186854: Thu Jan 1 21:47:47 2026 write: IOPS=107, BW=430KiB/s (440kB/s)(10.0MiB/23826msec); 0 zone resets slat (usec): min=23, max=12115, avg=178.05, stdev=653.08 clat (msec): min=12, max=319, avg=148.54, stdev=40.17 lat (msec): min=12, max=319, avg=148.72, stdev=40.16 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 92], 10.00th=[ 101], 20.00th=[ 117], | 30.00th=[ 129], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 240, max= 621, per=24.92%, avg=427.64, stdev=92.28, samples=47 iops : min= 60, max= 155, avg=106.57, stdev=23.14, samples=47 lat (msec) : 20=0.04%, 50=0.12%, 100=10.12%, 250=87.70%, 500=2.03% cpu : usr=0.22%, sys=1.08%, ctx=2545, 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=186855: Thu Jan 1 21:47:47 2026 write: IOPS=107, BW=429KiB/s (440kB/s)(10.0MiB/23843msec); 0 zone resets slat (usec): min=23, max=15071, avg=200.07, stdev=826.21 clat (msec): min=19, max=320, avg=148.15, stdev=40.29 lat (msec): min=20, max=320, avg=148.35, stdev=40.30 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 89], 10.00th=[ 102], 20.00th=[ 115], | 30.00th=[ 127], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 176], 90.00th=[ 199], 95.00th=[ 226], | 99.00th=[ 268], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 321] bw ( KiB/s): min= 192, max= 621, per=24.99%, avg=428.81, stdev=90.81, samples=47 iops : min= 48, max= 155, avg=106.85, stdev=22.76, samples=47 lat (msec) : 20=0.04%, 50=0.82%, 100=8.44%, 250=88.36%, 500=2.34% cpu : usr=0.23%, sys=1.10%, ctx=2977, 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=186856: Thu Jan 1 21:47:47 2026 write: IOPS=107, BW=430KiB/s (440kB/s)(10.0MiB/23828msec); 0 zone resets slat (usec): min=22, max=19138, avg=152.78, stdev=667.20 clat (msec): min=33, max=319, avg=148.04, stdev=39.24 lat (msec): min=33, max=319, avg=148.19, stdev=39.26 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 101], 20.00th=[ 114], | 30.00th=[ 129], 40.00th=[ 136], 50.00th=[ 146], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 197], 95.00th=[ 224], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 321] bw ( KiB/s): min= 232, max= 637, per=24.88%, avg=426.91, stdev=86.93, samples=47 iops : min= 58, max= 159, avg=106.40, stdev=21.80, samples=47 lat (msec) : 50=0.20%, 100=10.08%, 250=87.73%, 500=1.99% cpu : usr=0.16%, sys=0.82%, ctx=1903, 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=186857: Thu Jan 1 21:47:47 2026 write: IOPS=107, BW=429KiB/s (440kB/s)(10.0MiB/23856msec); 0 zone resets slat (usec): min=23, max=12586, avg=182.27, stdev=608.48 clat (msec): min=17, max=297, avg=148.37, stdev=39.98 lat (msec): min=18, max=297, avg=148.55, stdev=39.99 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 92], 10.00th=[ 101], 20.00th=[ 116], | 30.00th=[ 128], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 153], | 70.00th=[ 161], 80.00th=[ 178], 90.00th=[ 201], 95.00th=[ 224], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 255, max= 640, per=24.94%, avg=428.00, stdev=91.79, samples=47 iops : min= 63, max= 160, avg=106.66, stdev=23.02, samples=47 lat (msec) : 20=0.04%, 50=0.39%, 100=9.26%, 250=88.63%, 500=1.68% cpu : usr=0.19%, sys=0.99%, ctx=2892, 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=1717KiB/s (1758kB/s), 429KiB/s-430KiB/s (440kB/s-440kB/s), io=40.0MiB (41.9MB), run=23826-23856msec 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=186871: Thu Jan 1 21:48:24 2026 read: IOPS=46, BW=187KiB/s (191kB/s)(5048KiB/27028msec) slat (usec): min=2298, max=58750, avg=12410.86, stdev=6703.90 clat (msec): min=20, max=314, avg=159.11, stdev=38.88 lat (msec): min=30, max=318, avg=171.53, stdev=39.78 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 87, max= 296, per=24.91%, avg=184.85, stdev=40.27, samples=53 iops : min= 21, max= 74, avg=45.81, stdev=10.19, samples=53 write: IOPS=48, BW=192KiB/s (197kB/s)(5192KiB/27028msec); 0 zone resets slat (usec): min=34, max=9302, avg=177.54, stdev=597.65 clat (msec): min=18, max=295, avg=163.49, stdev=36.99 lat (msec): min=19, max=295, avg=163.67, stdev=36.96 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 100, max= 278, per=24.76%, avg=191.15, stdev=39.29, samples=53 iops : min= 25, max= 69, avg=47.42, stdev= 9.82, samples=53 lat (msec) : 20=0.04%, 50=0.27%, 100=3.05%, 250=94.26%, 500=2.38% cpu : usr=0.28%, sys=1.99%, ctx=4598, 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=186872: Thu Jan 1 21:48:24 2026 read: IOPS=46, BW=185KiB/s (189kB/s)(4976KiB/26891msec) slat (usec): min=2369, max=53211, avg=12420.40, stdev=6698.18 clat (msec): min=25, max=302, avg=158.33, stdev=37.58 lat (msec): min=35, max=311, avg=170.76, stdev=38.22 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 255], 99.50th=[ 268], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 81, max= 256, per=24.87%, avg=184.57, stdev=36.44, samples=53 iops : min= 20, max= 64, avg=45.75, stdev= 9.12, samples=53 write: IOPS=48, BW=196KiB/s (200kB/s)(5264KiB/26891msec); 0 zone resets slat (usec): min=30, max=12252, avg=183.93, stdev=634.87 clat (msec): min=79, max=302, avg=162.97, stdev=35.69 lat (msec): min=79, max=303, avg=163.16, stdev=35.69 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 111], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 104, max= 295, per=25.40%, avg=196.11, stdev=42.97, samples=53 iops : min= 26, max= 73, avg=48.66, stdev=10.78, samples=53 lat (msec) : 50=0.16%, 100=2.97%, 250=95.43%, 500=1.45% cpu : usr=0.27%, sys=1.73%, ctx=4229, 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=186873: Thu Jan 1 21:48:24 2026 read: IOPS=46, BW=186KiB/s (190kB/s)(4984KiB/26817msec) slat (usec): min=56, max=56241, avg=12377.74, stdev=6701.21 clat (msec): min=7, max=294, avg=158.45, stdev=38.09 lat (msec): min=17, max=329, avg=170.83, stdev=38.61 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 103], 10.00th=[ 114], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 118, max= 256, per=25.03%, avg=185.72, stdev=38.89, samples=53 iops : min= 29, max= 64, avg=46.06, stdev= 9.78, samples=53 write: IOPS=48, BW=196KiB/s (201kB/s)(5256KiB/26817msec); 0 zone resets slat (usec): min=23, max=17031, avg=212.14, stdev=768.10 clat (msec): min=35, max=302, avg=163.78, stdev=35.66 lat (msec): min=35, max=302, avg=163.99, stdev=35.64 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 207], 95.00th=[ 226], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 102, max= 296, per=25.22%, avg=194.72, stdev=42.40, samples=53 iops : min= 25, max= 74, avg=48.30, stdev=10.63, samples=53 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=3.09%, 250=94.96% lat (msec) : 500=1.72% cpu : usr=0.26%, sys=1.85%, ctx=4407, 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=186874: Thu Jan 1 21:48:24 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(5060KiB/26951msec) slat (usec): min=2086, max=46896, avg=12404.25, stdev=6576.52 clat (msec): min=63, max=289, avg=158.25, stdev=36.77 lat (msec): min=73, max=298, avg=170.66, stdev=37.39 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 87, max= 287, per=25.30%, avg=187.74, stdev=39.24, samples=53 iops : min= 21, max= 71, avg=46.55, stdev= 9.81, samples=53 write: IOPS=48, BW=192KiB/s (197kB/s)(5180KiB/26951msec); 0 zone resets slat (usec): min=34, max=7024, avg=155.80, stdev=364.60 clat (msec): min=60, max=300, avg=163.57, stdev=36.97 lat (msec): min=60, max=301, avg=163.73, stdev=36.96 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 232], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 95, max= 301, per=24.86%, avg=191.94, stdev=37.63, samples=53 iops : min= 23, max= 75, avg=47.58, stdev= 9.53, samples=53 lat (msec) : 100=3.09%, 250=94.77%, 500=2.15% cpu : usr=0.29%, sys=2.04%, ctx=4495, 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=742KiB/s (760kB/s), 185KiB/s-188KiB/s (189kB/s-192kB/s), io=19.6MiB (20.5MB), run=26817-27028msec WRITE: bw=773KiB/s (792kB/s), 192KiB/s-196KiB/s (197kB/s-201kB/s), io=20.4MiB (21.4MB), run=26817-27028msec 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=186882: Thu Jan 1 21:48:34 2026 read: IOPS=1, BW=75.5MiB/s (79.1MB/s)(40.0MiB/530msec) slat (nsec): min=55877k, max=55877k, avg=55877381.00, stdev= 0.00 clat (nsec): min=446998k, max=446998k, avg=446997822.00, stdev= 0.00 lat (nsec): min=502879k, max=502879k, avg=502879129.00, 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=1.13%, ctx=8, majf=0, minf=10 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=75.5MiB/s (79.1MB/s), 75.5MiB/s-75.5MiB/s (79.1MB/s-79.1MB/s), io=40.0MiB (41.9MB), run=530-530msec 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