== sanity test 398c: run fio to test AIO ================= 04:49:04 (1789548544) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.551542 s, 76.0 MB/s osc.lustre-OST0000-osc-ffff9820458a7000.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=147423: Wed Sep 16 04:50:54 2026 write: IOPS=25, BW=101KiB/s (104kB/s)(10.0MiB/101075msec); 0 zone resets slat (usec): min=21, max=16634, avg=192.48, stdev=690.78 clat (msec): min=129, max=1396, avg=630.48, stdev=196.59 lat (msec): min=129, max=1396, avg=630.68, stdev=196.60 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 347], 10.00th=[ 384], 20.00th=[ 464], | 30.00th=[ 518], 40.00th=[ 575], 50.00th=[ 625], 60.00th=[ 659], | 70.00th=[ 718], 80.00th=[ 785], 90.00th=[ 885], 95.00th=[ 986], | 99.00th=[ 1150], 99.50th=[ 1284], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1401] bw ( KiB/s): min= 24, max= 230, per=24.82%, avg=100.50, stdev=39.87, samples=201 iops : min= 6, max= 57, avg=24.71, stdev= 9.96, samples=201 lat (msec) : 250=1.84%, 500=24.65%, 750=48.52%, 1000=21.02%, 2000=3.98% cpu : usr=0.05%, sys=0.31%, ctx=2664, 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=147424: Wed Sep 16 04:50:54 2026 write: IOPS=25, BW=101KiB/s (104kB/s)(10.0MiB/101064msec); 0 zone resets slat (usec): min=22, max=11076, avg=185.99, stdev=555.17 clat (msec): min=130, max=1394, avg=630.61, stdev=198.18 lat (msec): min=130, max=1394, avg=630.80, stdev=198.21 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 334], 10.00th=[ 393], 20.00th=[ 468], | 30.00th=[ 523], 40.00th=[ 567], 50.00th=[ 617], 60.00th=[ 659], | 70.00th=[ 718], 80.00th=[ 785], 90.00th=[ 902], 95.00th=[ 995], | 99.00th=[ 1133], 99.50th=[ 1217], 99.90th=[ 1334], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 231, per=25.19%, avg=102.02, stdev=39.00, samples=198 iops : min= 1, max= 57, avg=25.09, stdev= 9.76, samples=198 lat (msec) : 250=1.91%, 500=24.49%, 750=48.67%, 1000=20.27%, 2000=4.65% cpu : usr=0.06%, sys=0.31%, ctx=2454, 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=147425: Wed Sep 16 04:50:54 2026 write: IOPS=25, BW=101KiB/s (104kB/s)(10.0MiB/100895msec); 0 zone resets slat (usec): min=23, max=16391, avg=216.73, stdev=763.76 clat (msec): min=122, max=1341, avg=630.11, stdev=196.76 lat (msec): min=123, max=1341, avg=630.32, stdev=196.80 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 334], 10.00th=[ 384], 20.00th=[ 464], | 30.00th=[ 523], 40.00th=[ 567], 50.00th=[ 617], 60.00th=[ 659], | 70.00th=[ 718], 80.00th=[ 785], 90.00th=[ 885], 95.00th=[ 986], | 99.00th=[ 1150], 99.50th=[ 1250], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 16, max= 241, per=24.92%, avg=100.92, stdev=38.65, samples=200 iops : min= 4, max= 60, avg=24.81, stdev= 9.66, samples=200 lat (msec) : 250=1.80%, 500=23.98%, 750=49.49%, 1000=20.31%, 2000=4.41% cpu : usr=0.07%, sys=0.36%, ctx=2816, 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=147426: Wed Sep 16 04:50:54 2026 write: IOPS=25, BW=101KiB/s (104kB/s)(10.0MiB/101075msec); 0 zone resets slat (usec): min=21, max=12321, avg=176.45, stdev=491.97 clat (msec): min=129, max=1395, avg=630.61, stdev=195.49 lat (msec): min=129, max=1395, avg=630.78, stdev=195.50 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 330], 10.00th=[ 393], 20.00th=[ 468], | 30.00th=[ 527], 40.00th=[ 567], 50.00th=[ 617], 60.00th=[ 667], | 70.00th=[ 709], 80.00th=[ 785], 90.00th=[ 894], 95.00th=[ 986], | 99.00th=[ 1133], 99.50th=[ 1217], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1401] bw ( KiB/s): min= 15, max= 232, per=24.82%, avg=100.52, stdev=37.98, samples=201 iops : min= 3, max= 58, avg=24.71, stdev= 9.51, samples=201 lat (msec) : 250=1.95%, 500=23.12%, 750=50.70%, 1000=19.45%, 2000=4.77% cpu : usr=0.06%, sys=0.30%, ctx=2405, 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=405KiB/s (415kB/s), 101KiB/s-101KiB/s (104kB/s-104kB/s), io=40.0MiB (41.9MB), run=100895-101075msec 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=147449: Wed Sep 16 04:51:33 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(5048KiB/34791msec) slat (usec): min=1149, max=18431, avg=4526.07, stdev=2281.15 clat (msec): min=4, max=301, avg=135.66, stdev=41.25 lat (msec): min=8, max=304, avg=140.19, stdev=41.97 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 81], 10.00th=[ 92], 20.00th=[ 105], | 30.00th=[ 113], 40.00th=[ 122], 50.00th=[ 131], 60.00th=[ 140], | 70.00th=[ 150], 80.00th=[ 165], 90.00th=[ 192], 95.00th=[ 215], | 99.00th=[ 251], 99.50th=[ 262], 99.90th=[ 284], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 64, max= 240, per=25.22%, avg=144.77, stdev=44.52, samples=69 iops : min= 16, max= 60, avg=36.00, stdev=11.16, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5192KiB/34791msec); 0 zone resets slat (usec): min=25, max=3295, avg=143.60, stdev=209.93 clat (msec): min=46, max=585, avg=291.51, stdev=88.31 lat (msec): min=46, max=585, avg=291.66, stdev=88.32 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 213], | 30.00th=[ 232], 40.00th=[ 255], 50.00th=[ 279], 60.00th=[ 313], | 70.00th=[ 342], 80.00th=[ 376], 90.00th=[ 401], 95.00th=[ 447], | 99.00th=[ 523], 99.50th=[ 531], 99.90th=[ 550], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 63, max= 232, per=24.86%, avg=148.67, stdev=35.27, samples=69 iops : min= 15, max= 58, avg=36.99, stdev= 8.85, samples=69 lat (msec) : 10=0.12%, 20=0.16%, 50=0.35%, 100=7.30%, 250=60.35% lat (msec) : 500=30.90%, 750=0.82% cpu : usr=0.15%, sys=1.18%, ctx=4840, 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=147450: Wed Sep 16 04:51:33 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(4976KiB/34901msec) slat (usec): min=1325, max=23571, avg=4469.01, stdev=2328.11 clat (msec): min=4, max=293, avg=136.90, stdev=38.80 lat (msec): min=7, max=303, avg=141.37, stdev=39.58 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 84], 10.00th=[ 94], 20.00th=[ 107], | 30.00th=[ 115], 40.00th=[ 124], 50.00th=[ 132], 60.00th=[ 140], | 70.00th=[ 155], 80.00th=[ 169], 90.00th=[ 188], 95.00th=[ 209], | 99.00th=[ 247], 99.50th=[ 255], 99.90th=[ 271], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 56, max= 272, per=24.67%, avg=141.58, stdev=45.37, samples=69 iops : min= 14, max= 68, avg=35.20, stdev=11.41, samples=69 write: IOPS=37, BW=151KiB/s (154kB/s)(5264KiB/34901msec); 0 zone resets slat (usec): min=29, max=5522, avg=155.82, stdev=328.89 clat (msec): min=101, max=655, avg=289.62, stdev=87.67 lat (msec): min=101, max=655, avg=289.78, stdev=87.69 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 163], 10.00th=[ 182], 20.00th=[ 207], | 30.00th=[ 230], 40.00th=[ 255], 50.00th=[ 284], 60.00th=[ 313], | 70.00th=[ 338], 80.00th=[ 368], 90.00th=[ 401], 95.00th=[ 430], | 99.00th=[ 527], 99.50th=[ 535], 99.90th=[ 642], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 72, max= 232, per=25.09%, avg=150.01, stdev=37.14, samples=69 iops : min= 18, max= 58, avg=37.32, stdev= 9.27, samples=69 lat (msec) : 10=0.12%, 20=0.04%, 50=0.23%, 100=6.48%, 250=60.90% lat (msec) : 500=31.52%, 750=0.70% cpu : usr=0.19%, sys=1.12%, ctx=4889, 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=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=147451: Wed Sep 16 04:51:33 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(4984KiB/34832msec) slat (usec): min=20, max=20716, avg=4497.61, stdev=2275.55 clat (msec): min=5, max=295, avg=137.79, stdev=40.89 lat (msec): min=8, max=304, avg=142.29, stdev=41.54 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 85], 10.00th=[ 93], 20.00th=[ 107], | 30.00th=[ 115], 40.00th=[ 123], 50.00th=[ 132], 60.00th=[ 140], | 70.00th=[ 153], 80.00th=[ 165], 90.00th=[ 194], 95.00th=[ 220], | 99.00th=[ 253], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 56, max= 248, per=24.94%, avg=143.17, stdev=40.43, samples=69 iops : min= 14, max= 62, avg=35.61, stdev=10.17, samples=69 write: IOPS=37, BW=151KiB/s (155kB/s)(5256KiB/34832msec); 0 zone resets slat (usec): min=24, max=3478, avg=142.12, stdev=180.57 clat (msec): min=67, max=649, avg=288.79, stdev=86.34 lat (msec): min=67, max=649, avg=288.93, stdev=86.35 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 167], 10.00th=[ 184], 20.00th=[ 211], | 30.00th=[ 232], 40.00th=[ 255], 50.00th=[ 284], 60.00th=[ 313], | 70.00th=[ 342], 80.00th=[ 368], 90.00th=[ 401], 95.00th=[ 426], | 99.00th=[ 510], 99.50th=[ 527], 99.90th=[ 634], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 72, max= 240, per=25.04%, avg=149.74, stdev=37.02, samples=69 iops : min= 18, max= 60, avg=37.25, stdev= 9.24, samples=69 lat (msec) : 10=0.04%, 20=0.04%, 50=0.20%, 100=7.15%, 250=60.35% lat (msec) : 500=31.52%, 750=0.70% cpu : usr=0.17%, sys=1.16%, ctx=4961, 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=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=147452: Wed Sep 16 04:51:33 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(5060KiB/34792msec) slat (usec): min=1273, max=15901, avg=4508.15, stdev=2224.27 clat (msec): min=16, max=288, avg=136.77, stdev=39.30 lat (msec): min=18, max=291, avg=141.29, stdev=39.99 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 84], 10.00th=[ 93], 20.00th=[ 107], | 30.00th=[ 114], 40.00th=[ 123], 50.00th=[ 131], 60.00th=[ 140], | 70.00th=[ 153], 80.00th=[ 167], 90.00th=[ 192], 95.00th=[ 211], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 275], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 64, max= 240, per=25.28%, avg=145.12, stdev=44.41, samples=69 iops : min= 16, max= 60, avg=36.09, stdev=11.15, samples=69 write: IOPS=37, BW=149KiB/s (152kB/s)(5180KiB/34792msec); 0 zone resets slat (usec): min=24, max=4897, avg=145.67, stdev=210.38 clat (msec): min=68, max=629, avg=290.72, stdev=87.68 lat (msec): min=68, max=629, avg=290.86, stdev=87.68 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 165], 10.00th=[ 180], 20.00th=[ 209], | 30.00th=[ 234], 40.00th=[ 255], 50.00th=[ 284], 60.00th=[ 313], | 70.00th=[ 338], 80.00th=[ 368], 90.00th=[ 401], 95.00th=[ 439], | 99.00th=[ 527], 99.50th=[ 542], 99.90th=[ 592], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 63, max= 232, per=24.81%, avg=148.35, stdev=35.87, samples=69 iops : min= 15, max= 58, avg=36.90, stdev= 9.00, samples=69 lat (msec) : 20=0.04%, 50=0.23%, 100=6.60%, 250=60.98%, 500=31.37% lat (msec) : 750=0.78% cpu : usr=0.22%, sys=1.10%, ctx=5030, 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=575KiB/s (589kB/s), 143KiB/s-145KiB/s (146kB/s-149kB/s), io=19.6MiB (20.5MB), run=34791-34901msec WRITE: bw=599KiB/s (613kB/s), 149KiB/s-151KiB/s (152kB/s-155kB/s), io=20.4MiB (21.4MB), run=34791-34901msec 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=147461: Wed Sep 16 04:51:36 2026 read: IOPS=5, BW=230MiB/s (241MB/s)(40.0MiB/174msec) slat (nsec): min=13081k, max=13081k, avg=13081402.00, stdev= 0.00 clat (nsec): min=152066k, max=152066k, avg=152066168.00, stdev= 0.00 lat (nsec): min=165152k, max=165152k, avg=165152459.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 153], 80.00th=[ 153], 90.00th=[ 153], 95.00th=[ 153], | 99.00th=[ 153], 99.50th=[ 153], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.94%, ctx=42, 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=230MiB/s (241MB/s), 230MiB/s-230MiB/s (241MB/s-241MB/s), io=40.0MiB (41.9MB), run=174-174msec 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