== sanity test 398c: run fio to test AIO ================= 00:07:44 (1786766864) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.425546 s, 98.6 MB/s osc.lustre-OST0000-osc-ffff9d899822e000.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=180054: Sat Aug 15 00:08:21 2026 write: IOPS=97, BW=389KiB/s (399kB/s)(10.0MiB/26296msec); 0 zone resets slat (usec): min=50, max=11719, avg=338.87, stdev=765.94 clat (msec): min=21, max=320, avg=163.12, stdev=33.09 lat (msec): min=22, max=320, avg=163.46, stdev=33.07 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 110], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 163], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 186], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 256, max= 537, per=24.90%, avg=387.69, stdev=64.90, samples=52 iops : min= 64, max= 134, avg=96.56, stdev=16.22, samples=52 lat (msec) : 50=0.04%, 100=2.97%, 250=95.08%, 500=1.91% cpu : usr=0.21%, sys=1.40%, ctx=2751, 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=180055: Sat Aug 15 00:08:21 2026 write: IOPS=97, BW=390KiB/s (399kB/s)(10.0MiB/26287msec); 0 zone resets slat (usec): min=49, max=15550, avg=294.98, stdev=739.41 clat (msec): min=33, max=356, avg=163.34, stdev=32.58 lat (msec): min=33, max=356, avg=163.63, stdev=32.58 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 224], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 355] bw ( KiB/s): min= 248, max= 510, per=24.90%, avg=387.71, stdev=67.28, samples=52 iops : min= 62, max= 127, avg=96.58, stdev=16.85, samples=52 lat (msec) : 50=0.04%, 100=2.58%, 250=95.20%, 500=2.19% cpu : usr=0.17%, sys=1.20%, ctx=2611, 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=180056: Sat Aug 15 00:08:21 2026 write: IOPS=98, BW=393KiB/s (403kB/s)(10.0MiB/26030msec); 0 zone resets slat (usec): min=52, max=15915, avg=344.38, stdev=904.30 clat (msec): min=14, max=479, avg=162.12, stdev=36.00 lat (msec): min=15, max=479, avg=162.46, stdev=35.94 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 108], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 203], 95.00th=[ 222], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 481] bw ( KiB/s): min= 251, max= 609, per=25.27%, avg=393.43, stdev=63.65, samples=51 iops : min= 62, max= 152, avg=97.98, stdev=15.96, samples=51 lat (msec) : 20=0.04%, 50=0.23%, 100=3.05%, 250=94.26%, 500=2.42% cpu : usr=0.20%, sys=1.38%, ctx=2591, 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=180057: Sat Aug 15 00:08:21 2026 write: IOPS=97, BW=390KiB/s (400kB/s)(10.0MiB/26226msec); 0 zone resets slat (usec): min=50, max=10633, avg=335.32, stdev=719.50 clat (msec): min=17, max=377, avg=162.80, stdev=34.39 lat (msec): min=18, max=377, avg=163.15, stdev=34.33 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 226], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 253, max= 534, per=25.16%, avg=391.69, stdev=63.90, samples=51 iops : min= 63, max= 133, avg=97.53, stdev=15.96, samples=51 lat (msec) : 20=0.08%, 50=0.12%, 100=3.09%, 250=95.23%, 500=1.48% cpu : usr=0.18%, sys=1.42%, ctx=2888, 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=1558KiB/s (1595kB/s), 389KiB/s-393KiB/s (399kB/s-403kB/s), io=40.0MiB (41.9MB), run=26030-26296msec 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=180071: Sat Aug 15 00:09:01 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5048KiB/31972msec) slat (usec): min=3480, max=62498, avg=14262.12, stdev=7519.83 clat (msec): min=93, max=352, avg=187.91, stdev=43.76 lat (msec): min=103, max=367, avg=202.18, stdev=45.22 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 124], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 80, max= 223, per=25.14%, avg=157.37, stdev=34.00, samples=63 iops : min= 20, max= 55, avg=38.87, stdev= 8.47, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5192KiB/31972msec); 0 zone resets slat (usec): min=60, max=15362, avg=383.40, stdev=913.33 clat (msec): min=34, max=362, avg=194.43, stdev=42.18 lat (msec): min=38, max=362, avg=194.82, stdev=42.19 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 351], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 45, max= 272, per=24.86%, avg=162.08, stdev=35.93, samples=63 iops : min= 11, max= 68, avg=40.06, stdev= 8.99, samples=63 lat (msec) : 50=0.04%, 100=0.20%, 250=90.90%, 500=8.87% cpu : usr=0.23%, sys=1.85%, ctx=4581, 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=180072: Sat Aug 15 00:09:01 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(4976KiB/31774msec) slat (usec): min=90, max=54540, avg=14453.45, stdev=7827.00 clat (msec): min=22, max=370, avg=188.69, stdev=44.87 lat (msec): min=22, max=388, avg=203.15, stdev=46.03 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 124], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 347], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 103, max= 254, per=24.87%, avg=155.70, stdev=33.31, samples=63 iops : min= 25, max= 63, avg=38.46, stdev= 8.34, samples=63 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31774msec); 0 zone resets slat (usec): min=53, max=13966, avg=333.06, stdev=868.36 clat (msec): min=78, max=378, avg=193.63, stdev=43.37 lat (msec): min=79, max=378, avg=193.96, stdev=43.40 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 95, max= 280, per=25.33%, avg=165.14, stdev=39.33, samples=63 iops : min= 23, max= 70, avg=40.83, stdev= 9.85, samples=63 lat (msec) : 50=0.08%, 100=0.51%, 250=89.65%, 500=9.77% cpu : usr=0.21%, sys=2.03%, ctx=4248, 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=180073: Sat Aug 15 00:09:01 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(4984KiB/31960msec) slat (usec): min=3467, max=53114, avg=14154.26, stdev=7422.86 clat (msec): min=38, max=379, avg=187.04, stdev=44.59 lat (msec): min=55, max=395, avg=201.20, stdev=46.17 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 124], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 59, max= 247, per=24.94%, avg=156.11, stdev=41.03, samples=63 iops : min= 14, max= 61, avg=38.56, stdev=10.24, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5256KiB/31960msec); 0 zone resets slat (usec): min=56, max=22875, avg=354.29, stdev=999.44 clat (msec): min=83, max=364, avg=194.56, stdev=45.25 lat (msec): min=83, max=364, avg=194.91, stdev=45.23 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 52, max= 253, per=25.15%, avg=163.95, stdev=40.57, samples=63 iops : min= 13, max= 63, avg=40.52, stdev=10.14, samples=63 lat (msec) : 50=0.04%, 100=0.55%, 250=89.06%, 500=10.35% cpu : usr=0.21%, sys=1.95%, ctx=4477, 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=180074: Sat Aug 15 00:09:01 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5060KiB/32024msec) slat (usec): min=3061, max=58358, avg=14444.90, stdev=7820.05 clat (msec): min=51, max=335, avg=188.59, stdev=43.36 lat (msec): min=69, max=362, avg=203.04, stdev=44.90 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 67, max= 272, per=25.22%, avg=157.86, stdev=38.16, samples=63 iops : min= 16, max= 68, avg=39.00, stdev= 9.55, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5180KiB/32024msec); 0 zone resets slat (usec): min=58, max=21107, avg=439.51, stdev=1331.06 clat (msec): min=100, max=356, avg=194.02, stdev=42.14 lat (msec): min=100, max=356, avg=194.47, stdev=42.12 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 67, max= 271, per=24.74%, avg=161.32, stdev=37.66, samples=63 iops : min= 16, max= 67, avg=39.84, stdev= 9.41, samples=63 lat (msec) : 100=0.35%, 250=90.00%, 500=9.65% cpu : usr=0.29%, sys=2.21%, ctx=4446, 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=627KiB/s (642kB/s), 156KiB/s-158KiB/s (160kB/s-162kB/s), io=19.6MiB (20.5MB), run=31774-32024msec WRITE: bw=652KiB/s (668kB/s), 162KiB/s-166KiB/s (166kB/s-170kB/s), io=20.4MiB (21.4MB), run=31774-32024msec 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=180083: Sat Aug 15 00:09:10 2026 read: IOPS=2, BW=116MiB/s (122MB/s)(40.0MiB/345msec) slat (nsec): min=21163k, max=21163k, avg=21162652.00, stdev= 0.00 clat (nsec): min=314615k, max=314615k, avg=314615193.00, stdev= 0.00 lat (nsec): min=335793k, max=335793k, avg=335793163.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.78%, ctx=5, 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=116MiB/s (122MB/s), 116MiB/s-116MiB/s (122MB/s-122MB/s), io=40.0MiB (41.9MB), run=345-345msec 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