== sanity test 398c: run fio to test AIO ================= 16:57:21 (1786654641) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.461334 s, 90.9 MB/s osc.lustre-OST0000-osc-ffff8bc3856ef800.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=180136: Thu Aug 13 16:57:57 2026 write: IOPS=104, BW=417KiB/s (427kB/s)(10.0MiB/24543msec); 0 zone resets slat (usec): min=35, max=19247, avg=247.25, stdev=809.98 clat (msec): min=15, max=353, avg=152.93, stdev=39.10 lat (msec): min=15, max=353, avg=153.18, stdev=39.08 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 93], 10.00th=[ 110], 20.00th=[ 122], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 247], 99.50th=[ 264], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 256, max= 652, per=25.17%, avg=417.88, stdev=81.72, samples=48 iops : min= 64, max= 163, avg=104.19, stdev=20.50, samples=48 lat (msec) : 20=0.04%, 50=0.43%, 100=5.66%, 250=92.89%, 500=0.98% cpu : usr=0.13%, sys=1.21%, ctx=2339, 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=180137: Thu Aug 13 16:57:57 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24662msec); 0 zone resets slat (usec): min=37, max=11677, avg=262.33, stdev=669.52 clat (msec): min=38, max=337, avg=153.31, stdev=37.25 lat (msec): min=38, max=337, avg=153.58, stdev=37.26 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 124], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 218], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 255, max= 644, per=24.87%, avg=412.90, stdev=81.74, samples=49 iops : min= 63, max= 161, avg=102.92, stdev=20.49, samples=49 lat (msec) : 50=0.12%, 100=5.23%, 250=93.55%, 500=1.09% cpu : usr=0.21%, sys=1.37%, ctx=2723, 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=180138: Thu Aug 13 16:57:57 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24652msec); 0 zone resets slat (usec): min=37, max=9010, avg=279.03, stdev=630.54 clat (msec): min=19, max=281, avg=153.07, stdev=37.33 lat (msec): min=19, max=281, avg=153.36, stdev=37.35 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 95], 10.00th=[ 110], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 215], | 99.00th=[ 249], 99.50th=[ 266], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 284] bw ( KiB/s): min= 295, max= 636, per=25.01%, avg=415.17, stdev=78.61, samples=48 iops : min= 73, max= 159, avg=103.48, stdev=19.70, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=5.35%, 250=93.75%, 500=0.78% cpu : usr=0.22%, sys=1.38%, ctx=3045, 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=180139: Thu Aug 13 16:57:57 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24674msec); 0 zone resets slat (usec): min=47, max=19975, avg=277.88, stdev=818.14 clat (msec): min=30, max=355, avg=153.18, stdev=37.44 lat (msec): min=32, max=355, avg=153.46, stdev=37.44 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 96], 10.00th=[ 111], 20.00th=[ 123], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 236], 99.50th=[ 253], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 355] bw ( KiB/s): min= 256, max= 644, per=24.89%, avg=413.18, stdev=81.84, samples=49 iops : min= 64, max= 161, avg=102.98, stdev=20.50, samples=49 lat (msec) : 50=0.20%, 100=6.56%, 250=92.66%, 500=0.59% cpu : usr=0.21%, sys=1.30%, ctx=2779, 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 Run status group 0 (all jobs): WRITE: bw=1660KiB/s (1700kB/s), 415KiB/s-417KiB/s (425kB/s-427kB/s), io=40.0MiB (41.9MB), run=24543-24674msec 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=180154: Thu Aug 13 16:58:44 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5048KiB/36951msec) slat (usec): min=2663, max=72677, avg=16243.23, stdev=9576.51 clat (msec): min=19, max=512, avg=217.40, stdev=59.24 lat (msec): min=28, max=518, avg=233.65, stdev=62.06 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 132], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 384], 99.50th=[ 418], 99.90th=[ 510], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 30, max= 239, per=25.04%, avg=135.73, stdev=38.39, samples=73 iops : min= 7, max= 59, avg=33.47, stdev= 9.61, samples=73 write: IOPS=35, BW=141KiB/s (144kB/s)(5192KiB/36951msec); 0 zone resets slat (usec): min=45, max=22260, avg=349.02, stdev=1177.16 clat (msec): min=101, max=514, avg=224.49, stdev=58.88 lat (msec): min=101, max=514, avg=224.84, stdev=58.88 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 401], 99.50th=[ 422], 99.90th=[ 477], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 38, max= 247, per=24.79%, avg=140.04, stdev=36.79, samples=73 iops : min= 9, max= 61, avg=34.56, stdev= 9.15, samples=73 lat (msec) : 20=0.04%, 100=0.16%, 250=74.02%, 500=25.66%, 750=0.12% cpu : usr=0.26%, sys=1.71%, ctx=4406, 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=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=180155: Thu Aug 13 16:58:44 2026 read: IOPS=33, BW=136KiB/s (139kB/s)(4976KiB/36689msec) slat (usec): min=101, max=73739, avg=15990.50, stdev=9515.81 clat (msec): min=31, max=478, avg=216.16, stdev=60.75 lat (msec): min=40, max=511, avg=232.15, stdev=63.46 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 132], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 393], 99.50th=[ 435], 99.90th=[ 464], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 63, max= 247, per=24.92%, avg=135.07, stdev=40.18, samples=72 iops : min= 15, max= 61, avg=33.31, stdev=10.09, samples=72 write: IOPS=35, BW=143KiB/s (147kB/s)(5264KiB/36689msec); 0 zone resets slat (usec): min=54, max=14064, avg=263.88, stdev=697.80 clat (msec): min=99, max=525, avg=225.64, stdev=61.38 lat (msec): min=100, max=525, avg=225.91, stdev=61.43 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 309], 95.00th=[ 342], | 99.00th=[ 414], 99.50th=[ 456], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 63, max= 223, per=25.44%, avg=143.74, stdev=35.04, samples=72 iops : min= 15, max= 55, avg=35.47, stdev= 8.71, samples=72 lat (msec) : 50=0.16%, 100=0.12%, 250=73.44%, 500=26.13%, 750=0.16% cpu : usr=0.24%, sys=1.74%, ctx=4391, 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=180156: Thu Aug 13 16:58:44 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4984KiB/36960msec) slat (usec): min=2457, max=90979, avg=16045.46, stdev=9522.04 clat (msec): min=83, max=468, avg=218.45, stdev=59.40 lat (msec): min=96, max=501, avg=234.50, stdev=61.69 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 262], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 384], 99.50th=[ 422], 99.90th=[ 460], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 38, max= 215, per=24.88%, avg=134.85, stdev=37.22, samples=73 iops : min= 9, max= 53, avg=33.23, stdev= 9.30, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5256KiB/36960msec); 0 zone resets slat (usec): min=41, max=8223, avg=261.34, stdev=587.36 clat (msec): min=89, max=513, avg=224.23, stdev=59.03 lat (msec): min=89, max=513, avg=224.49, stdev=59.05 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 142], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 188], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 268], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 388], 99.50th=[ 414], 99.90th=[ 456], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 71, max= 231, per=25.04%, avg=141.49, stdev=38.18, samples=73 iops : min= 17, max= 57, avg=34.90, stdev= 9.55, samples=73 lat (msec) : 100=0.35%, 250=73.59%, 500=26.02%, 750=0.04% cpu : usr=0.26%, sys=2.03%, ctx=4439, 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=180157: Thu Aug 13 16:58:44 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/36913msec) slat (usec): min=2610, max=77599, avg=16000.06, stdev=9561.51 clat (msec): min=48, max=440, avg=215.67, stdev=58.88 lat (msec): min=55, max=449, avg=231.68, stdev=61.35 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 133], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 414], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 48, max= 216, per=25.23%, avg=136.77, stdev=39.68, samples=73 iops : min= 12, max= 54, avg=33.71, stdev= 9.91, samples=73 write: IOPS=35, BW=140KiB/s (144kB/s)(5180KiB/36913msec); 0 zone resets slat (usec): min=54, max=33445, avg=372.89, stdev=1612.18 clat (msec): min=101, max=469, avg=226.86, stdev=57.79 lat (msec): min=101, max=469, avg=227.24, stdev=57.90 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 309], 95.00th=[ 338], | 99.00th=[ 409], 99.50th=[ 422], 99.90th=[ 451], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 56, max= 215, per=24.77%, avg=139.96, stdev=33.76, samples=73 iops : min= 14, max= 53, avg=34.53, stdev= 8.44, samples=73 lat (msec) : 50=0.04%, 100=0.08%, 250=73.48%, 500=26.41% cpu : usr=0.19%, sys=1.82%, ctx=4591, 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=543KiB/s (556kB/s), 135KiB/s-137KiB/s (138kB/s-140kB/s), io=19.6MiB (20.5MB), run=36689-36960msec WRITE: bw=565KiB/s (579kB/s), 140KiB/s-143KiB/s (144kB/s-147kB/s), io=20.4MiB (21.4MB), run=36689-36960msec 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=180167: Thu Aug 13 16:58:54 2026 read: IOPS=2, BW=84.2MiB/s (88.3MB/s)(40.0MiB/475msec) slat (nsec): min=35668k, max=35668k, avg=35668356.00, stdev= 0.00 clat (nsec): min=419509k, max=419509k, avg=419509104.00, stdev= 0.00 lat (nsec): min=455182k, max=455182k, avg=455181976.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.69%, ctx=13, 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=84.2MiB/s (88.3MB/s), 84.2MiB/s-84.2MiB/s (88.3MB/s-88.3MB/s), io=40.0MiB (41.9MB), run=475-475msec 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