== sanity test 398c: run fio to test AIO ================= 17:05:48 (1787778348) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.526176 s, 79.7 MB/s osc.lustre-OST0000-osc-ffff9951e6e38800.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=179648: Wed Aug 26 17:06:25 2026 write: IOPS=98, BW=394KiB/s (404kB/s)(10.0MiB/25985msec); 0 zone resets slat (usec): min=21, max=16811, avg=178.69, stdev=816.66 clat (msec): min=20, max=419, avg=162.05, stdev=37.25 lat (msec): min=21, max=419, avg=162.23, stdev=37.24 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 418] bw ( KiB/s): min= 262, max= 638, per=25.23%, avg=395.06, stdev=68.63, samples=51 iops : min= 65, max= 159, avg=98.29, stdev=17.19, samples=51 lat (msec) : 50=0.04%, 100=3.16%, 250=94.61%, 500=2.19% cpu : usr=0.19%, sys=0.85%, ctx=1256, 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=179649: Wed Aug 26 17:06:25 2026 write: IOPS=98, BW=392KiB/s (401kB/s)(10.0MiB/26117msec); 0 zone resets slat (usec): min=22, max=14621, avg=168.79, stdev=736.23 clat (msec): min=25, max=328, avg=162.33, stdev=37.76 lat (msec): min=26, max=328, avg=162.50, stdev=37.75 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 230], | 99.00th=[ 259], 99.50th=[ 292], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 255, max= 614, per=25.11%, avg=393.22, stdev=62.69, samples=51 iops : min= 63, max= 153, avg=97.86, stdev=15.74, samples=51 lat (msec) : 50=0.20%, 100=3.67%, 250=93.98%, 500=2.15% cpu : usr=0.16%, sys=0.91%, ctx=1446, 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=179650: Wed Aug 26 17:06:25 2026 write: IOPS=97, BW=392KiB/s (401kB/s)(10.0MiB/26145msec); 0 zone resets slat (usec): min=21, max=15216, avg=189.17, stdev=634.19 clat (msec): min=37, max=283, avg=162.29, stdev=34.39 lat (msec): min=37, max=284, avg=162.48, stdev=34.39 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 251], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 255, max= 630, per=25.03%, avg=391.90, stdev=65.56, samples=51 iops : min= 63, max= 157, avg=97.51, stdev=16.47, samples=51 lat (msec) : 50=0.27%, 100=2.15%, 250=96.52%, 500=1.05% cpu : usr=0.21%, sys=1.06%, ctx=2461, 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=179651: Wed Aug 26 17:06:25 2026 write: IOPS=97, BW=392KiB/s (401kB/s)(10.0MiB/26154msec); 0 zone resets slat (usec): min=22, max=21605, avg=226.43, stdev=977.98 clat (msec): min=13, max=287, avg=162.25, stdev=34.66 lat (msec): min=13, max=287, avg=162.48, stdev=34.62 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 115], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 209], 95.00th=[ 222], | 99.00th=[ 251], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 255, max= 550, per=24.99%, avg=391.41, stdev=64.40, samples=51 iops : min= 63, max= 137, avg=97.41, stdev=16.17, samples=51 lat (msec) : 20=0.04%, 50=0.23%, 100=3.79%, 250=94.92%, 500=1.02% cpu : usr=0.20%, sys=1.11%, ctx=2136, 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=1566KiB/s (1604kB/s), 392KiB/s-394KiB/s (401kB/s-404kB/s), io=40.0MiB (41.9MB), run=25985-26154msec 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=179665: Wed Aug 26 17:07:05 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/30949msec) slat (usec): min=36, max=59983, avg=13841.02, stdev=7939.74 clat (msec): min=30, max=310, avg=182.08, stdev=42.89 lat (msec): min=55, max=337, avg=195.93, stdev=44.39 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 94, max= 238, per=25.27%, avg=162.51, stdev=33.11, samples=61 iops : min= 23, max= 59, avg=40.20, stdev= 8.31, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5192KiB/30949msec); 0 zone resets slat (usec): min=28, max=10318, avg=212.02, stdev=640.59 clat (msec): min=46, max=356, avg=187.99, stdev=42.75 lat (msec): min=46, max=356, avg=188.20, stdev=42.76 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 95, max= 256, per=25.06%, avg=167.64, stdev=41.42, samples=61 iops : min= 23, max= 64, avg=41.48, stdev=10.48, samples=61 lat (msec) : 50=0.16%, 100=1.33%, 250=91.52%, 500=6.99% cpu : usr=0.24%, sys=1.83%, ctx=3962, 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=179666: Wed Aug 26 17:07:05 2026 read: IOPS=39, BW=160KiB/s (163kB/s)(4976KiB/31180msec) slat (usec): min=30, max=59056, avg=13913.10, stdev=8150.12 clat (msec): min=20, max=344, avg=184.39, stdev=42.22 lat (msec): min=54, max=358, avg=198.31, stdev=43.25 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 117], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 334], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 96, max= 264, per=24.65%, avg=158.49, stdev=38.55, samples=61 iops : min= 24, max= 66, avg=39.18, stdev= 9.73, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5264KiB/31180msec); 0 zone resets slat (usec): min=31, max=15683, avg=220.69, stdev=775.22 clat (msec): min=40, max=391, avg=190.73, stdev=43.71 lat (msec): min=40, max=391, avg=190.95, stdev=43.74 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 376], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 103, max= 256, per=25.26%, avg=169.02, stdev=39.04, samples=61 iops : min= 25, max= 64, avg=41.82, stdev= 9.82, samples=61 lat (msec) : 50=0.08%, 100=1.48%, 250=91.21%, 500=7.23% cpu : usr=0.28%, sys=1.88%, ctx=4183, 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=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=179667: Wed Aug 26 17:07:05 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4984KiB/31111msec) slat (usec): min=42, max=60851, avg=13738.30, stdev=8173.76 clat (msec): min=41, max=370, avg=182.79, stdev=44.93 lat (msec): min=61, max=386, avg=196.53, stdev=46.69 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 112], 10.00th=[ 128], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 255], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 79, max= 248, per=24.87%, avg=159.93, stdev=37.92, samples=61 iops : min= 19, max= 62, avg=39.54, stdev= 9.58, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31111msec); 0 zone resets slat (usec): min=24, max=18612, avg=236.90, stdev=980.34 clat (msec): min=38, max=334, avg=189.46, stdev=42.43 lat (msec): min=38, max=334, avg=189.70, stdev=42.45 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 122], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 241], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 80, max= 280, per=25.11%, avg=168.00, stdev=38.50, samples=61 iops : min= 20, max= 70, avg=41.57, stdev= 9.70, samples=61 lat (msec) : 50=0.16%, 100=1.84%, 250=90.78%, 500=7.23% cpu : usr=0.25%, sys=1.71%, ctx=4154, 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=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=179668: Wed Aug 26 17:07:05 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5060KiB/31189msec) slat (usec): min=45, max=68947, avg=13978.84, stdev=8123.23 clat (msec): min=18, max=350, avg=183.89, stdev=42.24 lat (msec): min=18, max=370, avg=197.87, stdev=43.56 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 94, max= 264, per=25.13%, avg=161.57, stdev=35.06, samples=61 iops : min= 23, max= 66, avg=39.95, stdev= 8.84, samples=61 write: IOPS=41, BW=166KiB/s (170kB/s)(5180KiB/31189msec); 0 zone resets slat (usec): min=30, max=15125, avg=229.42, stdev=891.35 clat (msec): min=48, max=358, avg=189.43, stdev=43.45 lat (msec): min=48, max=358, avg=189.67, stdev=43.51 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 87, max= 264, per=24.70%, avg=165.23, stdev=36.24, samples=61 iops : min= 21, max= 66, avg=40.87, stdev= 9.17, samples=61 lat (msec) : 20=0.04%, 50=0.08%, 100=1.29%, 250=90.78%, 500=7.81% cpu : usr=0.29%, sys=1.80%, ctx=4157, 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=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=643KiB/s (659kB/s), 160KiB/s-163KiB/s (163kB/s-167kB/s), io=19.6MiB (20.5MB), run=30949-31189msec WRITE: bw=670KiB/s (686kB/s), 166KiB/s-169KiB/s (170kB/s-173kB/s), io=20.4MiB (21.4MB), run=30949-31189msec 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=179677: Wed Aug 26 17:07:18 2026 read: IOPS=1, BW=56.0MiB/s (59.7MB/s)(40.0MiB/702msec) slat (nsec): min=61158k, max=61158k, avg=61157846.00, stdev= 0.00 clat (nsec): min=592718k, max=592718k, avg=592718374.00, stdev= 0.00 lat (nsec): min=653881k, max=653881k, avg=653881288.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=0.57%, 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=56.0MiB/s (59.7MB/s), 56.0MiB/s-56.0MiB/s (59.7MB/s-59.7MB/s), io=40.0MiB (41.9MB), run=702-702msec 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