== sanity test 398c: run fio to test AIO ================= 18:24:55 (1787869495) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.600466 s, 69.9 MB/s osc.lustre-OST0000-osc-ffff9f2538373800.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=179402: Thu Aug 27 18:25:35 2026 write: IOPS=89, BW=358KiB/s (367kB/s)(10.0MiB/28596msec); 0 zone resets slat (usec): min=24, max=16443, avg=169.78, stdev=663.78 clat (msec): min=37, max=356, avg=177.91, stdev=47.41 lat (msec): min=37, max=356, avg=178.08, stdev=47.42 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 262], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 359] bw ( KiB/s): min= 253, max= 518, per=24.92%, avg=356.59, stdev=79.87, samples=56 iops : min= 63, max= 129, avg=88.80, stdev=19.99, samples=56 lat (msec) : 50=0.04%, 100=0.47%, 250=90.55%, 500=8.95% cpu : usr=0.17%, sys=0.90%, ctx=2129, 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=179403: Thu Aug 27 18:25:35 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28518msec); 0 zone resets slat (usec): min=23, max=12807, avg=192.10, stdev=605.07 clat (msec): min=29, max=360, avg=177.77, stdev=48.40 lat (msec): min=30, max=360, avg=177.96, stdev=48.40 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 167, max= 590, per=25.06%, avg=358.59, stdev=80.99, samples=56 iops : min= 41, max= 147, avg=89.29, stdev=20.26, samples=56 lat (msec) : 50=0.12%, 100=1.09%, 250=90.74%, 500=8.05% cpu : usr=0.19%, sys=0.88%, ctx=2510, 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=179404: Thu Aug 27 18:25:35 2026 write: IOPS=90, BW=360KiB/s (369kB/s)(10.0MiB/28436msec); 0 zone resets slat (usec): min=23, max=14434, avg=181.11, stdev=677.43 clat (msec): min=31, max=352, avg=177.40, stdev=48.35 lat (msec): min=31, max=353, avg=177.58, stdev=48.36 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 112], 10.00th=[ 122], 20.00th=[ 133], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 243], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 245, max= 523, per=25.12%, avg=359.45, stdev=85.51, samples=56 iops : min= 61, max= 130, avg=89.50, stdev=21.39, samples=56 lat (msec) : 50=0.04%, 100=1.64%, 250=91.41%, 500=6.91% cpu : usr=0.18%, sys=0.89%, ctx=2253, 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=179405: Thu Aug 27 18:25:35 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28611msec); 0 zone resets slat (usec): min=27, max=17624, avg=186.97, stdev=713.88 clat (msec): min=29, max=356, avg=177.83, stdev=46.79 lat (msec): min=29, max=356, avg=178.02, stdev=46.79 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 112], 10.00th=[ 118], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 237, max= 547, per=24.90%, avg=356.38, stdev=76.16, samples=56 iops : min= 59, max= 136, avg=88.73, stdev=19.04, samples=56 lat (msec) : 50=0.12%, 100=1.37%, 250=91.21%, 500=7.30% cpu : usr=0.19%, sys=0.84%, ctx=2693, 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=1432KiB/s (1466kB/s), 358KiB/s-360KiB/s (366kB/s-369kB/s), io=40.0MiB (41.9MB), run=28436-28611msec 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=179419: Thu Aug 27 18:26:15 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5048KiB/32184msec) slat (usec): min=44, max=67964, avg=14607.05, stdev=10232.36 clat (msec): min=18, max=469, avg=192.81, stdev=86.09 lat (msec): min=18, max=526, avg=207.42, stdev=91.26 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 83], 20.00th=[ 116], | 30.00th=[ 146], 40.00th=[ 169], 50.00th=[ 188], 60.00th=[ 207], | 70.00th=[ 230], 80.00th=[ 253], 90.00th=[ 313], 95.00th=[ 359], | 99.00th=[ 426], 99.50th=[ 443], 99.90th=[ 460], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 79, max= 416, per=25.20%, avg=156.49, stdev=66.83, samples=63 iops : min= 19, max= 104, avg=38.67, stdev=16.82, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5192KiB/32184msec); 0 zone resets slat (usec): min=24, max=26752, avg=247.31, stdev=1018.48 clat (msec): min=17, max=521, avg=193.06, stdev=83.45 lat (msec): min=23, max=521, avg=193.31, stdev=83.49 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 86], 20.00th=[ 116], | 30.00th=[ 142], 40.00th=[ 169], 50.00th=[ 192], 60.00th=[ 211], | 70.00th=[ 234], 80.00th=[ 257], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 439], 99.50th=[ 468], 99.90th=[ 502], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 47, max= 560, per=24.93%, avg=161.30, stdev=87.19, samples=63 iops : min= 11, max= 140, avg=39.89, stdev=21.92, samples=63 lat (msec) : 20=0.16%, 50=0.78%, 100=13.36%, 250=64.02%, 500=21.60% lat (msec) : 750=0.08% cpu : usr=0.26%, sys=1.73%, ctx=4166, 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=179420: Thu Aug 27 18:26:15 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4976KiB/32282msec) slat (usec): min=38, max=73597, avg=14367.16, stdev=10281.39 clat (msec): min=18, max=480, avg=191.39, stdev=85.02 lat (msec): min=37, max=497, avg=205.76, stdev=90.22 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 80], 20.00th=[ 110], | 30.00th=[ 146], 40.00th=[ 169], 50.00th=[ 190], 60.00th=[ 211], | 70.00th=[ 230], 80.00th=[ 257], 90.00th=[ 292], 95.00th=[ 355], | 99.00th=[ 426], 99.50th=[ 456], 99.90th=[ 477], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 54, max= 496, per=24.69%, avg=153.33, stdev=75.37, samples=63 iops : min= 13, max= 124, avg=37.87, stdev=18.95, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5264KiB/32282msec); 0 zone resets slat (usec): min=23, max=14581, avg=236.84, stdev=868.25 clat (msec): min=47, max=528, avg=195.94, stdev=82.83 lat (msec): min=47, max=528, avg=196.18, stdev=82.88 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 94], 20.00th=[ 123], | 30.00th=[ 146], 40.00th=[ 171], 50.00th=[ 194], 60.00th=[ 215], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 355], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 510], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 55, max= 488, per=25.13%, avg=162.59, stdev=80.53, samples=63 iops : min= 13, max= 122, avg=40.21, stdev=20.27, samples=63 lat (msec) : 20=0.04%, 50=0.82%, 100=13.24%, 250=63.09%, 500=22.73% lat (msec) : 750=0.08% cpu : usr=0.22%, sys=1.52%, ctx=4142, 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=179421: Thu Aug 27 18:26:15 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32123msec) slat (usec): min=40, max=99805, avg=14437.28, stdev=10383.39 clat (msec): min=13, max=465, avg=191.21, stdev=86.30 lat (msec): min=15, max=488, avg=205.66, stdev=91.37 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 80], 20.00th=[ 110], | 30.00th=[ 140], 40.00th=[ 165], 50.00th=[ 188], 60.00th=[ 211], | 70.00th=[ 232], 80.00th=[ 262], 90.00th=[ 305], 95.00th=[ 347], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 464], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 63, max= 528, per=25.02%, avg=155.35, stdev=75.67, samples=63 iops : min= 15, max= 132, avg=38.38, stdev=19.05, samples=63 write: IOPS=40, BW=164KiB/s (168kB/s)(5256KiB/32123msec); 0 zone resets slat (usec): min=25, max=16583, avg=197.25, stdev=735.41 clat (msec): min=26, max=507, avg=195.43, stdev=84.39 lat (msec): min=26, max=507, avg=195.63, stdev=84.42 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 63], 10.00th=[ 91], 20.00th=[ 116], | 30.00th=[ 146], 40.00th=[ 174], 50.00th=[ 197], 60.00th=[ 215], | 70.00th=[ 236], 80.00th=[ 253], 90.00th=[ 296], 95.00th=[ 359], | 99.00th=[ 426], 99.50th=[ 447], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 55, max= 480, per=25.19%, avg=162.97, stdev=79.48, samples=63 iops : min= 13, max= 120, avg=40.30, stdev=19.98, samples=63 lat (msec) : 20=0.16%, 50=0.78%, 100=13.55%, 250=63.32%, 500=22.11% lat (msec) : 750=0.08% cpu : usr=0.24%, sys=1.44%, ctx=4231, 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=179422: Thu Aug 27 18:26:15 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5060KiB/32264msec) slat (usec): min=50, max=81301, avg=14486.00, stdev=10100.79 clat (msec): min=17, max=459, avg=191.43, stdev=83.76 lat (msec): min=45, max=490, avg=205.92, stdev=89.03 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 85], 20.00th=[ 114], | 30.00th=[ 146], 40.00th=[ 167], 50.00th=[ 190], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 249], 90.00th=[ 305], 95.00th=[ 351], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 456], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 31, max= 456, per=25.09%, avg=155.81, stdev=75.05, samples=63 iops : min= 7, max= 114, avg=38.49, stdev=18.89, samples=63 write: IOPS=40, BW=161KiB/s (164kB/s)(5180KiB/32264msec); 0 zone resets slat (usec): min=27, max=12560, avg=209.72, stdev=645.87 clat (msec): min=44, max=490, avg=195.75, stdev=81.89 lat (msec): min=45, max=490, avg=195.96, stdev=81.91 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 87], 20.00th=[ 117], | 30.00th=[ 148], 40.00th=[ 174], 50.00th=[ 199], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 414], 99.50th=[ 468], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 62, max= 520, per=24.65%, avg=159.46, stdev=82.31, samples=63 iops : min= 15, max= 130, avg=39.43, stdev=20.70, samples=63 lat (msec) : 20=0.04%, 50=0.86%, 100=13.55%, 250=63.52%, 500=22.03% cpu : usr=0.23%, sys=1.48%, ctx=4180, 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=622KiB/s (637kB/s), 154KiB/s-157KiB/s (158kB/s-161kB/s), io=19.6MiB (20.5MB), run=32123-32282msec WRITE: bw=647KiB/s (663kB/s), 161KiB/s-164KiB/s (164kB/s-168kB/s), io=20.4MiB (21.4MB), run=32123-32282msec 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=179431: Thu Aug 27 18:26:22 2026 read: IOPS=3, BW=125MiB/s (131MB/s)(40.0MiB/319msec) slat (nsec): min=26964k, max=26964k, avg=26964240.00, stdev= 0.00 clat (nsec): min=274239k, max=274239k, avg=274238999.00, stdev= 0.00 lat (nsec): min=301210k, max=301210k, avg=301209538.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 275], 95.00th=[ 275], | 99.00th=[ 275], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.77%, ctx=4, majf=0, minf=9 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=125MiB/s (131MB/s), 125MiB/s-125MiB/s (131MB/s-131MB/s), io=40.0MiB (41.9MB), run=319-319msec 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