== sanity test 398c: run fio to test AIO ================= 15:47:38 (1780343258) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.428354 s, 97.9 MB/s osc.lustre-OST0000-osc-ffff8e47c8dd4000.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=181558: Mon Jun 1 15:48:16 2026 write: IOPS=89, BW=359KiB/s (367kB/s)(10.0MiB/28548msec); 0 zone resets slat (usec): min=49, max=16859, avg=355.45, stdev=933.72 clat (msec): min=44, max=305, avg=176.93, stdev=36.66 lat (msec): min=48, max=305, avg=177.29, stdev=36.68 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 125], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 243, max= 509, per=24.88%, avg=356.82, stdev=64.21, samples=56 iops : min= 60, max= 127, avg=88.80, stdev=16.11, samples=56 lat (msec) : 50=0.04%, 100=0.20%, 250=95.16%, 500=4.61% cpu : usr=0.15%, sys=1.36%, ctx=2214, 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=181559: Mon Jun 1 15:48:16 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28524msec); 0 zone resets slat (usec): min=51, max=14094, avg=350.37, stdev=869.05 clat (msec): min=21, max=304, avg=177.01, stdev=36.11 lat (msec): min=22, max=304, avg=177.37, stdev=36.11 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 230], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 251, max= 508, per=24.95%, avg=357.77, stdev=65.41, samples=56 iops : min= 62, max= 127, avg=89.04, stdev=16.40, samples=56 lat (msec) : 50=0.08%, 250=96.68%, 500=3.24% cpu : usr=0.17%, sys=1.27%, ctx=2413, 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=181560: Mon Jun 1 15:48:16 2026 write: IOPS=90, BW=361KiB/s (370kB/s)(10.0MiB/28332msec); 0 zone resets slat (usec): min=49, max=17212, avg=492.18, stdev=1316.05 clat (msec): min=10, max=369, avg=176.38, stdev=39.16 lat (msec): min=11, max=369, avg=176.88, stdev=39.16 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 124], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 251, max= 508, per=25.16%, avg=360.79, stdev=63.86, samples=56 iops : min= 62, max= 127, avg=89.80, stdev=16.03, samples=56 lat (msec) : 20=0.04%, 50=0.20%, 100=0.90%, 250=94.57%, 500=4.30% cpu : usr=0.25%, sys=1.66%, ctx=3053, 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=181561: Mon Jun 1 15:48:16 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28497msec); 0 zone resets slat (usec): min=53, max=16983, avg=414.09, stdev=1081.75 clat (msec): min=18, max=308, avg=176.87, stdev=36.52 lat (msec): min=18, max=308, avg=177.28, stdev=36.54 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 126], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 251, max= 494, per=25.04%, avg=359.04, stdev=63.14, samples=56 iops : min= 62, max= 123, avg=89.34, stdev=15.79, samples=56 lat (msec) : 20=0.04%, 50=0.04%, 100=0.82%, 250=95.51%, 500=3.59% cpu : usr=0.21%, sys=1.44%, ctx=2956, 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=1435KiB/s (1469kB/s), 359KiB/s-361KiB/s (367kB/s-370kB/s), io=40.0MiB (41.9MB), run=28332-28548msec 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=181575: Mon Jun 1 15:48:53 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(5048KiB/29043msec) slat (usec): min=2936, max=57349, avg=13253.08, stdev=6835.76 clat (msec): min=53, max=295, avg=170.08, stdev=35.92 lat (msec): min=64, max=304, avg=183.34, stdev=37.04 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 85, max= 278, per=25.09%, avg=173.12, stdev=36.21, samples=57 iops : min= 21, max= 69, avg=42.88, stdev= 9.07, samples=57 write: IOPS=44, BW=179KiB/s (183kB/s)(5192KiB/29043msec); 0 zone resets slat (usec): min=57, max=15406, avg=464.49, stdev=1017.44 clat (msec): min=33, max=316, avg=176.70, stdev=34.43 lat (msec): min=33, max=317, avg=177.17, stdev=34.42 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 222], 95.00th=[ 234], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 78, max= 278, per=24.87%, avg=178.79, stdev=41.21, samples=57 iops : min= 19, max= 69, avg=44.30, stdev=10.38, samples=57 lat (msec) : 50=0.04%, 100=0.62%, 250=97.50%, 500=1.84% cpu : usr=0.28%, sys=2.46%, ctx=4639, 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=181576: Mon Jun 1 15:48:53 2026 read: IOPS=42, BW=172KiB/s (176kB/s)(4976KiB/29006msec) slat (usec): min=3059, max=61512, avg=13434.22, stdev=6993.00 clat (msec): min=41, max=364, avg=170.65, stdev=38.49 lat (msec): min=60, max=377, avg=184.10, stdev=39.57 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 330], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 78, max= 263, per=24.83%, avg=171.33, stdev=34.00, samples=57 iops : min= 19, max= 65, avg=42.42, stdev= 8.54, samples=57 write: IOPS=45, BW=181KiB/s (186kB/s)(5264KiB/29006msec); 0 zone resets slat (usec): min=60, max=13609, avg=396.37, stdev=863.08 clat (msec): min=20, max=352, avg=175.98, stdev=37.70 lat (msec): min=21, max=352, avg=176.38, stdev=37.71 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 239], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 338], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 103, max= 278, per=25.30%, avg=181.89, stdev=41.21, samples=57 iops : min= 25, max= 69, avg=45.07, stdev=10.35, samples=57 lat (msec) : 50=0.12%, 100=0.90%, 250=96.25%, 500=2.73% cpu : usr=0.31%, sys=2.39%, ctx=4664, 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=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=181577: Mon Jun 1 15:48:53 2026 read: IOPS=42, BW=172KiB/s (176kB/s)(4984KiB/29036msec) slat (usec): min=3030, max=50938, avg=13576.25, stdev=6945.64 clat (msec): min=10, max=284, avg=169.65, stdev=36.80 lat (msec): min=22, max=302, avg=183.23, stdev=37.72 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 87, max= 264, per=24.83%, avg=171.32, stdev=38.30, samples=57 iops : min= 21, max= 66, avg=42.42, stdev= 9.59, samples=57 write: IOPS=45, BW=181KiB/s (185kB/s)(5256KiB/29036msec); 0 zone resets slat (usec): min=55, max=13845, avg=484.69, stdev=1092.51 clat (msec): min=30, max=322, avg=177.41, stdev=34.92 lat (msec): min=30, max=322, avg=177.90, stdev=34.98 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 264], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 111, max= 270, per=25.02%, avg=179.88, stdev=37.82, samples=57 iops : min= 27, max= 67, avg=44.58, stdev= 9.54, samples=57 lat (msec) : 20=0.04%, 50=0.08%, 100=0.86%, 250=96.60%, 500=2.42% cpu : usr=0.29%, sys=2.36%, ctx=4765, 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=181578: Mon Jun 1 15:48:53 2026 read: IOPS=43, BW=174KiB/s (179kB/s)(5060KiB/28998msec) slat (usec): min=58, max=46594, avg=13313.17, stdev=6647.57 clat (msec): min=21, max=291, avg=170.62, stdev=37.20 lat (msec): min=21, max=310, avg=183.95, stdev=38.79 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 95, max= 256, per=25.27%, avg=174.37, stdev=36.91, samples=57 iops : min= 23, max= 64, avg=43.18, stdev= 9.25, samples=57 write: IOPS=44, BW=179KiB/s (183kB/s)(5180KiB/28998msec); 0 zone resets slat (usec): min=59, max=13891, avg=426.00, stdev=994.44 clat (msec): min=25, max=340, avg=177.66, stdev=36.27 lat (msec): min=27, max=340, avg=178.09, stdev=36.23 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 239], | 99.00th=[ 268], 99.50th=[ 288], 99.90th=[ 317], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 119, max= 310, per=24.77%, avg=178.12, stdev=37.10, samples=57 iops : min= 29, max= 77, avg=44.14, stdev= 9.32, samples=57 lat (msec) : 50=0.12%, 100=1.02%, 250=96.05%, 500=2.81% cpu : usr=0.29%, sys=2.40%, ctx=4583, 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=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=691KiB/s (708kB/s), 172KiB/s-174KiB/s (176kB/s-179kB/s), io=19.6MiB (20.5MB), run=28998-29043msec WRITE: bw=719KiB/s (737kB/s), 179KiB/s-181KiB/s (183kB/s-186kB/s), io=20.4MiB (21.4MB), run=28998-29043msec 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=181587: Mon Jun 1 15:49:01 2026 read: IOPS=2, BW=97.8MiB/s (103MB/s)(40.0MiB/409msec) slat (nsec): min=27079k, max=27079k, avg=27078759.00, stdev= 0.00 clat (nsec): min=362006k, max=362006k, avg=362006233.00, stdev= 0.00 lat (nsec): min=389090k, max=389090k, avg=389089824.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.19%, ctx=9, majf=0, minf=8 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=97.8MiB/s (103MB/s), 97.8MiB/s-97.8MiB/s (103MB/s-103MB/s), io=40.0MiB (41.9MB), run=409-409msec 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