== sanity test 398c: run fio to test AIO ================= 23:55:40 (1789271740) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.569299 s, 73.7 MB/s osc.lustre-OST0000-osc-ffff8ead1132d800.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=179746: Sat Sep 12 23:56:15 2026 write: IOPS=103, BW=413KiB/s (423kB/s)(10.0MiB/24775msec); 0 zone resets slat (usec): min=20, max=9537, avg=162.13, stdev=526.56 clat (msec): min=24, max=289, avg=154.45, stdev=43.54 lat (msec): min=24, max=290, avg=154.62, stdev=43.53 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 121], | 30.00th=[ 129], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 255, max= 612, per=25.09%, avg=412.73, stdev=85.48, samples=49 iops : min= 63, max= 153, avg=102.86, stdev=21.39, samples=49 lat (msec) : 50=0.43%, 100=6.48%, 250=90.20%, 500=2.89% cpu : usr=0.15%, sys=0.90%, ctx=2148, 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=179747: Sat Sep 12 23:56:15 2026 write: IOPS=102, BW=412KiB/s (421kB/s)(10.0MiB/24879msec); 0 zone resets slat (usec): min=21, max=17236, avg=119.93, stdev=482.30 clat (msec): min=21, max=308, avg=154.31, stdev=41.73 lat (msec): min=21, max=312, avg=154.43, stdev=41.74 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 99], 10.00th=[ 108], 20.00th=[ 121], | 30.00th=[ 131], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 188], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 309] bw ( KiB/s): min= 251, max= 637, per=24.85%, avg=408.73, stdev=96.72, samples=49 iops : min= 62, max= 159, avg=101.86, stdev=24.19, samples=49 lat (msec) : 50=0.59%, 100=5.04%, 250=92.93%, 500=1.45% cpu : usr=0.13%, sys=0.75%, ctx=1439, 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=179748: Sat Sep 12 23:56:15 2026 write: IOPS=102, BW=411KiB/s (421kB/s)(10.0MiB/24897msec); 0 zone resets slat (usec): min=20, max=25757, avg=129.39, stdev=693.26 clat (msec): min=43, max=288, avg=154.69, stdev=42.50 lat (msec): min=43, max=289, avg=154.82, stdev=42.49 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 95], 10.00th=[ 107], 20.00th=[ 121], | 30.00th=[ 131], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 171], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 243], | 99.00th=[ 251], 99.50th=[ 255], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 288] bw ( KiB/s): min= 252, max= 513, per=24.79%, avg=407.73, stdev=83.89, samples=49 iops : min= 63, max= 128, avg=101.59, stdev=20.98, samples=49 lat (msec) : 50=0.04%, 100=9.34%, 250=88.52%, 500=2.11% cpu : usr=0.18%, sys=0.62%, ctx=1208, 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=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=179749: Sat Sep 12 23:56:15 2026 write: IOPS=102, BW=412KiB/s (421kB/s)(10.0MiB/24883msec); 0 zone resets slat (usec): min=20, max=11309, avg=153.83, stdev=468.42 clat (msec): min=19, max=312, avg=154.40, stdev=42.55 lat (msec): min=19, max=312, avg=154.56, stdev=42.53 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 99], 10.00th=[ 109], 20.00th=[ 123], | 30.00th=[ 130], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 169], 80.00th=[ 186], 90.00th=[ 211], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 232, max= 537, per=24.91%, avg=409.82, stdev=81.02, samples=49 iops : min= 58, max= 134, avg=102.12, stdev=20.25, samples=49 lat (msec) : 20=0.04%, 50=0.35%, 100=6.02%, 250=89.73%, 500=3.87% cpu : usr=0.16%, sys=0.97%, ctx=2618, 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=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=1645KiB/s (1685kB/s), 411KiB/s-413KiB/s (421kB/s-423kB/s), io=40.0MiB (41.9MB), run=24775-24897msec 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=179763: Sat Sep 12 23:56:57 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(5048KiB/33008msec) slat (usec): min=36, max=79304, avg=14544.78, stdev=9059.76 clat (msec): min=90, max=434, avg=193.80, stdev=50.39 lat (msec): min=98, max=474, avg=208.35, stdev=52.16 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 405], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 79, max= 239, per=25.26%, avg=152.80, stdev=36.64, samples=65 iops : min= 19, max= 59, avg=37.75, stdev= 9.16, samples=65 write: IOPS=39, BW=157KiB/s (161kB/s)(5192KiB/33008msec); 0 zone resets slat (usec): min=32, max=24797, avg=177.80, stdev=803.90 clat (msec): min=91, max=411, avg=201.92, stdev=49.12 lat (msec): min=91, max=411, avg=202.10, stdev=49.18 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 240, per=24.96%, avg=157.25, stdev=38.84, samples=65 iops : min= 17, max= 60, avg=38.86, stdev= 9.75, samples=65 lat (msec) : 100=0.35%, 250=85.31%, 500=14.34% cpu : usr=0.23%, sys=1.50%, ctx=3892, 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=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=179764: Sat Sep 12 23:56:57 2026 read: IOPS=37, BW=150KiB/s (154kB/s)(4976KiB/33111msec) slat (usec): min=35, max=82145, avg=14510.20, stdev=8798.39 clat (msec): min=88, max=406, avg=195.90, stdev=49.44 lat (msec): min=92, max=458, avg=210.41, stdev=51.02 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 71, max= 239, per=24.74%, avg=149.68, stdev=37.38, samples=65 iops : min= 17, max= 59, avg=36.97, stdev= 9.36, samples=65 write: IOPS=39, BW=159KiB/s (163kB/s)(5264KiB/33111msec); 0 zone resets slat (usec): min=25, max=16752, avg=153.24, stdev=573.28 clat (msec): min=102, max=400, avg=202.58, stdev=48.81 lat (msec): min=103, max=400, avg=202.74, stdev=48.81 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 87, max= 254, per=25.28%, avg=159.25, stdev=33.04, samples=65 iops : min= 21, max= 63, avg=39.37, stdev= 8.28, samples=65 lat (msec) : 100=0.27%, 250=85.20%, 500=14.53% cpu : usr=0.26%, sys=1.46%, ctx=4175, 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=179765: Sat Sep 12 23:56:57 2026 read: IOPS=37, BW=150KiB/s (154kB/s)(4984KiB/33119msec) slat (usec): min=37, max=154133, avg=14875.14, stdev=10383.14 clat (msec): min=23, max=355, avg=196.22, stdev=47.77 lat (msec): min=33, max=381, avg=211.10, stdev=49.40 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 63, max= 231, per=24.79%, avg=149.98, stdev=34.36, samples=65 iops : min= 15, max= 57, avg=37.05, stdev= 8.62, samples=65 write: IOPS=39, BW=159KiB/s (163kB/s)(5256KiB/33119msec); 0 zone resets slat (usec): min=28, max=5524, avg=156.82, stdev=421.93 clat (msec): min=67, max=424, avg=201.13, stdev=50.94 lat (msec): min=68, max=424, avg=201.29, stdev=50.93 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 296], | 99.00th=[ 359], 99.50th=[ 405], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 71, max= 272, per=24.97%, avg=157.32, stdev=42.34, samples=65 iops : min= 17, max= 68, avg=38.88, stdev=10.61, samples=65 lat (msec) : 50=0.08%, 100=0.66%, 250=85.43%, 500=13.83% cpu : usr=0.22%, sys=1.30%, ctx=3907, 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=179766: Sat Sep 12 23:56:57 2026 read: IOPS=38, BW=153KiB/s (156kB/s)(5060KiB/33122msec) slat (usec): min=48, max=89249, avg=14534.01, stdev=8923.11 clat (msec): min=18, max=422, avg=196.04, stdev=50.44 lat (msec): min=26, max=451, avg=210.58, stdev=52.11 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 76, max= 231, per=25.20%, avg=152.45, stdev=32.70, samples=65 iops : min= 19, max= 57, avg=37.66, stdev= 8.14, samples=65 write: IOPS=39, BW=156KiB/s (160kB/s)(5180KiB/33122msec); 0 zone resets slat (usec): min=25, max=7359, avg=152.54, stdev=459.76 clat (msec): min=29, max=419, avg=201.07, stdev=50.63 lat (msec): min=30, max=419, avg=201.22, stdev=50.62 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 292], | 99.00th=[ 347], 99.50th=[ 372], 99.90th=[ 414], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 55, max= 252, per=24.70%, avg=155.58, stdev=39.79, samples=65 iops : min= 13, max= 63, avg=38.46, stdev=10.00, samples=65 lat (msec) : 20=0.04%, 50=0.04%, 100=0.39%, 250=84.84%, 500=14.69% cpu : usr=0.18%, sys=1.53%, ctx=3871, 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=606KiB/s (620kB/s), 150KiB/s-153KiB/s (154kB/s-157kB/s), io=19.6MiB (20.5MB), run=33008-33122msec WRITE: bw=631KiB/s (646kB/s), 156KiB/s-159KiB/s (160kB/s-163kB/s), io=20.4MiB (21.4MB), run=33008-33122msec 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=179775: Sat Sep 12 23:57:10 2026 read: IOPS=1, BW=76.9MiB/s (80.7MB/s)(40.0MiB/520msec) slat (nsec): min=24375k, max=24375k, avg=24374963.00, stdev= 0.00 clat (nsec): min=475926k, max=475926k, avg=475926140.00, stdev= 0.00 lat (nsec): min=500307k, max=500307k, avg=500306601.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.31%, ctx=13, majf=0, minf=7 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=76.9MiB/s (80.7MB/s), 76.9MiB/s-76.9MiB/s (80.7MB/s-80.7MB/s), io=40.0MiB (41.9MB), run=520-520msec 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