== sanity test 398c: run fio to test AIO ================= 23:05:13 (1784084713) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.204036 s, 206 MB/s osc.lustre-OST0000-osc-ffff8f4980a8a800.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=159980: Tue Jul 14 23:06:23 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65060msec); 0 zone resets slat (usec): min=36, max=6629, avg=245.30, stdev=334.48 clat (msec): min=106, max=861, avg=405.86, stdev=105.23 lat (msec): min=106, max=861, avg=406.11, stdev=105.24 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 243], 10.00th=[ 284], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 447], 80.00th=[ 493], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 667], 99.50th=[ 718], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 87, max= 286, per=24.94%, avg=156.87, stdev=40.06, samples=129 iops : min= 21, max= 71, avg=38.98, stdev=10.08, samples=129 lat (msec) : 250=6.02%, 500=75.78%, 750=17.77%, 1000=0.43% cpu : usr=0.08%, sys=0.64%, ctx=3078, 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=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=159981: Tue Jul 14 23:06:23 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65080msec); 0 zone resets slat (usec): min=36, max=7335, avg=252.81, stdev=380.69 clat (msec): min=106, max=898, avg=406.08, stdev=104.76 lat (msec): min=106, max=898, avg=406.34, stdev=104.77 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 245], 10.00th=[ 284], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 667], 99.50th=[ 735], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 902] bw ( KiB/s): min= 79, max= 305, per=24.93%, avg=156.78, stdev=40.40, samples=129 iops : min= 19, max= 76, avg=38.96, stdev=10.17, samples=129 lat (msec) : 250=6.05%, 500=77.73%, 750=15.78%, 1000=0.43% cpu : usr=0.08%, sys=0.63%, ctx=3255, 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=159982: Tue Jul 14 23:06:23 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65083msec); 0 zone resets slat (usec): min=40, max=6958, avg=228.44, stdev=310.35 clat (msec): min=48, max=899, avg=406.14, stdev=103.57 lat (msec): min=48, max=900, avg=406.37, stdev=103.59 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 575], | 99.00th=[ 667], 99.50th=[ 751], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 902] bw ( KiB/s): min= 55, max= 264, per=24.96%, avg=157.02, stdev=41.07, samples=129 iops : min= 13, max= 66, avg=39.02, stdev=10.36, samples=129 lat (msec) : 50=0.04%, 250=5.78%, 500=76.64%, 750=17.07%, 1000=0.47% cpu : usr=0.09%, sys=0.60%, ctx=3092, 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=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=159983: Tue Jul 14 23:06:23 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65041msec); 0 zone resets slat (usec): min=35, max=11265, avg=244.60, stdev=404.77 clat (msec): min=73, max=877, avg=406.04, stdev=105.68 lat (msec): min=73, max=877, avg=406.28, stdev=105.69 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 667], 99.50th=[ 760], 99.90th=[ 852], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 71, max= 305, per=24.93%, avg=156.84, stdev=41.02, samples=129 iops : min= 17, max= 76, avg=38.98, stdev=10.35, samples=129 lat (msec) : 100=0.16%, 250=5.59%, 500=76.17%, 750=17.58%, 1000=0.51% cpu : usr=0.09%, sys=0.62%, ctx=3124, 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=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=629KiB/s (644kB/s), 157KiB/s-157KiB/s (161kB/s-161kB/s), io=40.0MiB (41.9MB), run=65041-65083msec 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=160002: Tue Jul 14 23:07:00 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(5048KiB/34084msec) slat (usec): min=1333, max=24273, avg=4446.89, stdev=2266.41 clat (msec): min=4, max=295, avg=131.56, stdev=38.11 lat (msec): min=8, max=309, avg=136.01, stdev=38.91 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 84], 10.00th=[ 89], 20.00th=[ 101], | 30.00th=[ 109], 40.00th=[ 117], 50.00th=[ 128], 60.00th=[ 138], | 70.00th=[ 148], 80.00th=[ 163], 90.00th=[ 182], 95.00th=[ 203], | 99.00th=[ 245], 99.50th=[ 257], 99.90th=[ 284], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 63, max= 280, per=25.06%, avg=147.36, stdev=51.96, samples=67 iops : min= 15, max= 70, avg=36.66, stdev=13.07, samples=67 write: IOPS=38, BW=152KiB/s (156kB/s)(5192KiB/34084msec); 0 zone resets slat (usec): min=56, max=3634, avg=233.07, stdev=239.31 clat (msec): min=49, max=652, avg=286.98, stdev=97.76 lat (msec): min=49, max=653, avg=287.21, stdev=97.78 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 144], 10.00th=[ 171], 20.00th=[ 201], | 30.00th=[ 232], 40.00th=[ 257], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 330], 80.00th=[ 363], 90.00th=[ 409], 95.00th=[ 451], | 99.00th=[ 600], 99.50th=[ 625], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 71, max= 256, per=24.76%, avg=151.55, stdev=40.97, samples=67 iops : min= 17, max= 64, avg=37.70, stdev=10.30, samples=67 lat (msec) : 10=0.04%, 20=0.08%, 50=0.39%, 100=9.92%, 250=57.46% lat (msec) : 500=30.39%, 750=1.72% cpu : usr=0.15%, sys=1.55%, ctx=4968, 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=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=160003: Tue Jul 14 23:07:00 2026 read: IOPS=36, BW=146KiB/s (149kB/s)(4976KiB/34084msec) slat (usec): min=51, max=19070, avg=4406.48, stdev=2221.39 clat (msec): min=3, max=264, avg=129.10, stdev=37.03 lat (msec): min=6, max=272, avg=133.51, stdev=37.78 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 79], 10.00th=[ 89], 20.00th=[ 101], | 30.00th=[ 109], 40.00th=[ 115], 50.00th=[ 125], 60.00th=[ 134], | 70.00th=[ 144], 80.00th=[ 159], 90.00th=[ 180], 95.00th=[ 199], | 99.00th=[ 234], 99.50th=[ 245], 99.90th=[ 259], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 39, max= 272, per=24.70%, avg=145.22, stdev=54.38, samples=67 iops : min= 9, max= 68, avg=36.13, stdev=13.65, samples=67 write: IOPS=38, BW=154KiB/s (158kB/s)(5264KiB/34084msec); 0 zone resets slat (usec): min=56, max=4015, avg=224.34, stdev=232.88 clat (msec): min=43, max=672, avg=287.72, stdev=100.00 lat (msec): min=43, max=672, avg=287.95, stdev=100.02 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 144], 10.00th=[ 171], 20.00th=[ 201], | 30.00th=[ 232], 40.00th=[ 262], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 330], 80.00th=[ 359], 90.00th=[ 409], 95.00th=[ 451], | 99.00th=[ 600], 99.50th=[ 625], 99.90th=[ 651], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 71, max= 272, per=25.13%, avg=153.78, stdev=40.76, samples=67 iops : min= 17, max= 68, avg=38.27, stdev=10.29, samples=67 lat (msec) : 4=0.04%, 10=0.08%, 20=0.16%, 50=0.27%, 100=9.92% lat (msec) : 250=56.17%, 500=31.56%, 750=1.80% cpu : usr=0.19%, sys=1.46%, ctx=4966, 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=160004: Tue Jul 14 23:07:00 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(4984KiB/34051msec) slat (usec): min=1311, max=18923, avg=4514.88, stdev=2253.16 clat (msec): min=3, max=284, avg=131.80, stdev=37.98 lat (msec): min=6, max=297, avg=136.32, stdev=38.73 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 83], 10.00th=[ 90], 20.00th=[ 103], | 30.00th=[ 111], 40.00th=[ 118], 50.00th=[ 128], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 163], 90.00th=[ 180], 95.00th=[ 197], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 262], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 39, max= 280, per=24.94%, avg=146.63, stdev=49.83, samples=67 iops : min= 9, max= 70, avg=36.48, stdev=12.52, samples=67 write: IOPS=38, BW=154KiB/s (158kB/s)(5256KiB/34051msec); 0 zone resets slat (usec): min=57, max=3185, avg=231.56, stdev=214.26 clat (msec): min=69, max=657, avg=284.34, stdev=95.84 lat (msec): min=69, max=657, avg=284.57, stdev=95.86 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 144], 10.00th=[ 174], 20.00th=[ 201], | 30.00th=[ 228], 40.00th=[ 255], 50.00th=[ 279], 60.00th=[ 305], | 70.00th=[ 326], 80.00th=[ 355], 90.00th=[ 401], 95.00th=[ 451], | 99.00th=[ 600], 99.50th=[ 634], 99.90th=[ 651], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 79, max= 248, per=25.06%, avg=153.37, stdev=43.96, samples=67 iops : min= 19, max= 62, avg=38.16, stdev=11.09, samples=67 lat (msec) : 4=0.08%, 10=0.12%, 20=0.04%, 50=0.31%, 100=8.63% lat (msec) : 250=58.48%, 500=30.86%, 750=1.48% cpu : usr=0.18%, sys=1.50%, ctx=4966, 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=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=160005: Tue Jul 14 23:07:00 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(5060KiB/34011msec) slat (usec): min=1245, max=17275, avg=4535.46, stdev=2263.96 clat (msec): min=8, max=332, avg=131.40, stdev=38.27 lat (msec): min=11, max=340, avg=135.94, stdev=38.92 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 83], 10.00th=[ 88], 20.00th=[ 101], | 30.00th=[ 110], 40.00th=[ 116], 50.00th=[ 127], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 161], 90.00th=[ 180], 95.00th=[ 203], | 99.00th=[ 251], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 64, max= 296, per=25.37%, avg=149.16, stdev=50.80, samples=67 iops : min= 16, max= 74, avg=37.10, stdev=12.74, samples=67 write: IOPS=38, BW=152KiB/s (156kB/s)(5180KiB/34011msec); 0 zone resets slat (usec): min=59, max=2807, avg=229.21, stdev=213.43 clat (msec): min=51, max=677, avg=286.54, stdev=94.66 lat (msec): min=52, max=678, avg=286.77, stdev=94.67 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 148], 10.00th=[ 176], 20.00th=[ 205], | 30.00th=[ 232], 40.00th=[ 257], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 326], 80.00th=[ 359], 90.00th=[ 405], 95.00th=[ 451], | 99.00th=[ 584], 99.50th=[ 617], 99.90th=[ 659], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 64, max= 240, per=24.80%, avg=151.78, stdev=41.18, samples=67 iops : min= 16, max= 60, avg=37.76, stdev=10.40, samples=67 lat (msec) : 10=0.04%, 20=0.04%, 50=0.23%, 100=10.27%, 250=56.60% lat (msec) : 500=31.48%, 750=1.33% cpu : usr=0.15%, sys=1.57%, ctx=5070, 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=589KiB/s (603kB/s), 146KiB/s-149KiB/s (149kB/s-152kB/s), io=19.6MiB (20.5MB), run=34011-34084msec WRITE: bw=613KiB/s (628kB/s), 152KiB/s-154KiB/s (156kB/s-158kB/s), io=20.4MiB (21.4MB), run=34011-34084msec 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=160013: Tue Jul 14 23:07:04 2026 read: IOPS=6, BW=272MiB/s (285MB/s)(40.0MiB/147msec) slat (nsec): min=13555k, max=13555k, avg=13554573.00, stdev= 0.00 clat (nsec): min=126841k, max=126841k, avg=126840505.00, stdev= 0.00 lat (nsec): min=140399k, max=140399k, avg=140398898.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 127], | 70.00th=[ 127], 80.00th=[ 127], 90.00th=[ 127], 95.00th=[ 127], | 99.00th=[ 127], 99.50th=[ 127], 99.90th=[ 127], 99.95th=[ 127], | 99.99th=[ 127] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.53%, ctx=42, 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=272MiB/s (285MB/s), 272MiB/s-272MiB/s (285MB/s-285MB/s), io=40.0MiB (41.9MB), run=147-147msec 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