== sanity test 398c: run fio to test AIO ================= 13:44:56 (1788803096) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.413078 s, 102 MB/s osc.lustre-OST0000-osc-ffff9e09c345b000.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=179901: Mon Sep 7 13:45:31 2026 write: IOPS=95, BW=380KiB/s (390kB/s)(10.0MiB/26913msec); 0 zone resets slat (usec): min=28, max=15474, avg=278.28, stdev=854.44 clat (msec): min=21, max=305, avg=167.32, stdev=40.69 lat (msec): min=22, max=305, avg=167.61, stdev=40.70 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 109], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 260, max= 518, per=24.92%, avg=379.09, stdev=72.94, samples=53 iops : min= 65, max= 129, avg=94.38, stdev=18.25, samples=53 lat (msec) : 50=0.08%, 100=2.62%, 250=94.10%, 500=3.20% cpu : usr=0.20%, sys=1.24%, ctx=2434, 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=179902: Mon Sep 7 13:45:31 2026 write: IOPS=95, BW=383KiB/s (392kB/s)(10.0MiB/26759msec); 0 zone resets slat (usec): min=29, max=13579, avg=232.32, stdev=742.75 clat (msec): min=22, max=426, avg=166.80, stdev=43.63 lat (msec): min=24, max=426, avg=167.04, stdev=43.63 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 105], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 208, max= 597, per=25.02%, avg=380.53, stdev=83.86, samples=53 iops : min= 52, max= 149, avg=94.74, stdev=21.01, samples=53 lat (msec) : 50=0.04%, 100=3.52%, 250=92.62%, 500=3.83% cpu : usr=0.20%, sys=1.09%, ctx=2170, 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=179903: Mon Sep 7 13:45:31 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26836msec); 0 zone resets slat (usec): min=29, max=21862, avg=222.23, stdev=832.47 clat (msec): min=52, max=346, avg=166.95, stdev=41.26 lat (msec): min=53, max=347, avg=167.18, stdev=41.27 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 252, max= 567, per=25.02%, avg=380.62, stdev=77.12, samples=53 iops : min= 63, max= 141, avg=94.77, stdev=19.32, samples=53 lat (msec) : 100=2.66%, 250=93.67%, 500=3.67% cpu : usr=0.20%, sys=0.99%, ctx=1699, 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=179904: Mon Sep 7 13:45:31 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26806msec); 0 zone resets slat (usec): min=31, max=20184, avg=302.87, stdev=963.90 clat (msec): min=27, max=351, avg=166.53, stdev=41.87 lat (msec): min=27, max=352, avg=166.84, stdev=41.89 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 109], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 253, max= 534, per=25.04%, avg=380.92, stdev=80.31, samples=53 iops : min= 63, max= 133, avg=94.85, stdev=20.16, samples=53 lat (msec) : 50=0.27%, 100=1.13%, 250=94.69%, 500=3.91% cpu : usr=0.23%, sys=1.14%, ctx=2637, 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=1522KiB/s (1558kB/s), 380KiB/s-383KiB/s (390kB/s-392kB/s), io=40.0MiB (41.9MB), run=26759-26913msec 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=179918: Mon Sep 7 13:46:07 2026 read: IOPS=47, BW=191KiB/s (195kB/s)(5048KiB/26479msec) slat (msec): min=2, max=136, avg=11.78, stdev= 6.82 clat (msec): min=33, max=292, avg=156.37, stdev=36.29 lat (msec): min=41, max=304, avg=168.16, stdev=37.63 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 106], 10.00th=[ 115], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 86, max= 272, per=24.99%, avg=189.17, stdev=38.69, samples=52 iops : min= 21, max= 68, avg=46.79, stdev= 9.68, samples=52 write: IOPS=49, BW=196KiB/s (201kB/s)(5192KiB/26479msec); 0 zone resets slat (usec): min=32, max=9266, avg=269.69, stdev=669.40 clat (msec): min=71, max=297, avg=160.38, stdev=33.02 lat (msec): min=71, max=297, avg=160.66, stdev=33.00 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 116], 10.00th=[ 124], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 71, max= 287, per=24.76%, avg=195.35, stdev=44.61, samples=52 iops : min= 17, max= 71, avg=48.35, stdev=11.13, samples=52 lat (msec) : 50=0.12%, 100=1.68%, 250=96.48%, 500=1.72% cpu : usr=0.33%, sys=1.98%, ctx=3955, 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=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=179919: Mon Sep 7 13:46:07 2026 read: IOPS=47, BW=188KiB/s (193kB/s)(4976KiB/26460msec) slat (usec): min=2777, max=39888, avg=11627.75, stdev=5778.88 clat (msec): min=33, max=281, avg=155.44, stdev=33.44 lat (msec): min=38, max=307, avg=167.08, stdev=34.71 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 107], 10.00th=[ 115], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 251], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 99, max= 288, per=24.70%, avg=186.94, stdev=42.24, samples=52 iops : min= 24, max= 72, avg=46.23, stdev=10.57, samples=52 write: IOPS=49, BW=199KiB/s (204kB/s)(5264KiB/26460msec); 0 zone resets slat (usec): min=29, max=14078, avg=305.28, stdev=800.59 clat (msec): min=89, max=327, avg=161.68, stdev=33.43 lat (msec): min=89, max=327, avg=161.99, stdev=33.45 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 115], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 262], 99.50th=[ 288], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 87, max= 286, per=25.23%, avg=199.08, stdev=41.32, samples=52 iops : min= 21, max= 71, avg=49.29, stdev=10.35, samples=52 lat (msec) : 50=0.04%, 100=1.41%, 250=97.30%, 500=1.25% cpu : usr=0.31%, sys=2.11%, ctx=4245, 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=179920: Mon Sep 7 13:46:07 2026 read: IOPS=47, BW=190KiB/s (194kB/s)(4984KiB/26300msec) slat (usec): min=66, max=41046, avg=11786.47, stdev=5884.77 clat (msec): min=42, max=301, avg=155.36, stdev=34.16 lat (msec): min=43, max=314, avg=167.16, stdev=35.83 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 96, max= 287, per=25.04%, avg=189.56, stdev=36.21, samples=52 iops : min= 24, max= 71, avg=46.88, stdev= 9.03, samples=52 write: IOPS=49, BW=200KiB/s (205kB/s)(5256KiB/26300msec); 0 zone resets slat (usec): min=36, max=10260, avg=274.26, stdev=586.00 clat (msec): min=86, max=298, avg=160.74, stdev=34.45 lat (msec): min=86, max=298, avg=161.01, stdev=34.42 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 266], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 103, max= 279, per=25.20%, avg=198.83, stdev=41.06, samples=52 iops : min= 25, max= 69, avg=49.21, stdev=10.28, samples=52 lat (msec) : 50=0.08%, 100=1.52%, 250=96.60%, 500=1.80% cpu : usr=0.32%, sys=2.18%, ctx=4404, 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=179921: Mon Sep 7 13:46:07 2026 read: IOPS=47, BW=191KiB/s (196kB/s)(5060KiB/26429msec) slat (usec): min=2933, max=52556, avg=11740.25, stdev=5793.56 clat (msec): min=32, max=312, avg=156.73, stdev=34.53 lat (msec): min=39, max=322, avg=168.48, stdev=35.79 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 108], 10.00th=[ 116], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 257], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 99, max= 303, per=25.26%, avg=191.23, stdev=39.75, samples=52 iops : min= 24, max= 75, avg=47.31, stdev= 9.95, samples=52 write: IOPS=48, BW=196KiB/s (201kB/s)(5180KiB/26429msec); 0 zone resets slat (usec): min=34, max=12672, avg=282.50, stdev=760.22 clat (msec): min=35, max=338, avg=159.67, stdev=33.65 lat (msec): min=35, max=338, avg=159.95, stdev=33.63 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 262], 99.50th=[ 296], 99.90th=[ 326], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 111, max= 327, per=24.76%, avg=195.33, stdev=44.48, samples=52 iops : min= 27, max= 81, avg=48.35, stdev=11.14, samples=52 lat (msec) : 50=0.12%, 100=1.05%, 250=97.58%, 500=1.25% cpu : usr=0.37%, sys=2.10%, ctx=4606, 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=758KiB/s (776kB/s), 188KiB/s-191KiB/s (193kB/s-196kB/s), io=19.6MiB (20.5MB), run=26300-26479msec WRITE: bw=789KiB/s (808kB/s), 196KiB/s-200KiB/s (201kB/s-205kB/s), io=20.4MiB (21.4MB), run=26300-26479msec 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=179931: Mon Sep 7 13:46:16 2026 read: IOPS=2, BW=89.7MiB/s (94.0MB/s)(40.0MiB/446msec) slat (nsec): min=32013k, max=32013k, avg=32012705.00, stdev= 0.00 clat (nsec): min=391086k, max=391086k, avg=391086455.00, stdev= 0.00 lat (nsec): min=423104k, max=423104k, avg=423104169.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.92%, ctx=3, 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=89.7MiB/s (94.0MB/s), 89.7MiB/s-89.7MiB/s (94.0MB/s-94.0MB/s), io=40.0MiB (41.9MB), run=446-446msec 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