== sanity test 398c: run fio to test AIO ================= 19:15:20 (1787872520) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.439804 s, 95.4 MB/s osc.lustre-OST0000-osc-ffff9d0ec7d92000.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=180757: Thu Aug 27 19:15:58 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29809msec); 0 zone resets slat (usec): min=29, max=27392, avg=180.54, stdev=750.30 clat (msec): min=77, max=337, avg=184.99, stdev=43.86 lat (msec): min=77, max=337, avg=185.18, stdev=43.88 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 215, max= 510, per=24.97%, avg=342.53, stdev=72.45, samples=59 iops : min= 53, max= 127, avg=85.19, stdev=18.14, samples=59 lat (msec) : 100=1.25%, 250=89.34%, 500=9.41% cpu : usr=0.15%, sys=0.82%, ctx=1820, 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=180758: Thu Aug 27 19:15:58 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29843msec); 0 zone resets slat (usec): min=29, max=16398, avg=210.65, stdev=723.81 clat (msec): min=21, max=340, avg=184.97, stdev=42.11 lat (msec): min=21, max=340, avg=185.19, stdev=42.10 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 342] bw ( KiB/s): min= 233, max= 502, per=24.91%, avg=341.78, stdev=61.87, samples=59 iops : min= 58, max= 125, avg=84.98, stdev=15.49, samples=59 lat (msec) : 50=0.12%, 100=0.98%, 250=91.84%, 500=7.07% cpu : usr=0.21%, sys=0.94%, ctx=2429, 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=180759: Thu Aug 27 19:15:58 2026 write: IOPS=86, BW=345KiB/s (353kB/s)(10.0MiB/29690msec); 0 zone resets slat (usec): min=29, max=24751, avg=237.96, stdev=870.29 clat (msec): min=19, max=337, avg=184.94, stdev=43.33 lat (msec): min=20, max=337, avg=185.18, stdev=43.32 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 121], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 151, max= 463, per=25.11%, avg=344.47, stdev=61.55, samples=58 iops : min= 37, max= 115, avg=85.66, stdev=15.40, samples=58 lat (msec) : 20=0.04%, 50=0.04%, 100=1.45%, 250=90.39%, 500=8.09% cpu : usr=0.15%, sys=1.02%, ctx=2714, 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=180760: Thu Aug 27 19:15:58 2026 write: IOPS=85, BW=343KiB/s (352kB/s)(10.0MiB/29827msec); 0 zone resets slat (usec): min=28, max=21997, avg=184.48, stdev=719.65 clat (msec): min=19, max=334, avg=184.79, stdev=42.10 lat (msec): min=19, max=335, avg=184.98, stdev=42.10 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 130], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 143, max= 510, per=24.97%, avg=342.58, stdev=70.40, samples=59 iops : min= 35, max= 127, avg=85.17, stdev=17.61, samples=59 lat (msec) : 20=0.04%, 100=1.21%, 250=91.05%, 500=7.70% cpu : usr=0.19%, sys=0.90%, ctx=2559, 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=1373KiB/s (1405kB/s), 343KiB/s-345KiB/s (351kB/s-353kB/s), io=40.0MiB (41.9MB), run=29690-29843msec 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=180774: Thu Aug 27 19:16:36 2026 read: IOPS=39, BW=160KiB/s (164kB/s)(5048KiB/31600msec) slat (usec): min=2748, max=90019, avg=13373.89, stdev=8427.29 clat (msec): min=17, max=436, avg=186.75, stdev=54.13 lat (msec): min=40, max=466, avg=200.13, stdev=56.21 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 87, max= 238, per=24.99%, avg=158.16, stdev=37.13, samples=62 iops : min= 21, max= 59, avg=39.03, stdev= 9.31, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5192KiB/31600msec); 0 zone resets slat (usec): min=33, max=10118, avg=231.30, stdev=620.50 clat (msec): min=61, max=417, avg=191.69, stdev=51.50 lat (msec): min=61, max=417, avg=191.93, stdev=51.49 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 255], 95.00th=[ 296], | 99.00th=[ 359], 99.50th=[ 388], 99.90th=[ 414], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 65, max= 295, per=24.81%, avg=163.48, stdev=48.13, samples=62 iops : min= 16, max= 73, avg=40.34, stdev=12.03, samples=62 lat (msec) : 20=0.04%, 50=0.04%, 100=1.68%, 250=86.95%, 500=11.29% cpu : usr=0.23%, sys=1.55%, ctx=4348, 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=180775: Thu Aug 27 19:16:36 2026 read: IOPS=39, BW=159KiB/s (162kB/s)(4976KiB/31385msec) slat (usec): min=34, max=85991, avg=13517.34, stdev=8276.66 clat (msec): min=13, max=419, avg=185.33, stdev=52.22 lat (msec): min=26, max=441, avg=198.86, stdev=54.43 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 112], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 64, max= 269, per=24.90%, avg=157.65, stdev=39.79, samples=62 iops : min= 16, max= 67, avg=38.89, stdev= 9.94, samples=62 write: IOPS=41, BW=168KiB/s (172kB/s)(5264KiB/31385msec); 0 zone resets slat (usec): min=34, max=9173, avg=219.94, stdev=630.32 clat (msec): min=28, max=392, avg=193.01, stdev=48.92 lat (msec): min=28, max=397, avg=193.24, stdev=48.94 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 292], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 88, max= 287, per=25.41%, avg=167.45, stdev=40.88, samples=62 iops : min= 22, max= 71, avg=41.32, stdev=10.19, samples=62 lat (msec) : 20=0.04%, 50=0.23%, 100=1.37%, 250=87.15%, 500=11.21% cpu : usr=0.24%, sys=1.60%, ctx=4351, 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=180776: Thu Aug 27 19:16:36 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31673msec) slat (msec): min=2, max=159, avg=14.06, stdev=10.11 clat (msec): min=6, max=506, avg=187.58, stdev=57.67 lat (msec): min=11, max=522, avg=201.65, stdev=59.94 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 372], 99.50th=[ 443], 99.90th=[ 493], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 72, max= 255, per=24.59%, avg=155.65, stdev=42.59, samples=62 iops : min= 18, max= 63, avg=38.39, stdev=10.61, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31673msec); 0 zone resets slat (usec): min=31, max=12896, avg=257.30, stdev=808.12 clat (msec): min=41, max=480, avg=192.19, stdev=55.94 lat (msec): min=42, max=480, avg=192.45, stdev=55.93 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 230], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 368], 99.50th=[ 422], 99.90th=[ 477], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 48, max= 255, per=24.76%, avg=163.16, stdev=42.19, samples=62 iops : min= 12, max= 63, avg=40.27, stdev=10.56, samples=62 lat (msec) : 10=0.04%, 50=0.23%, 100=1.99%, 250=84.49%, 500=13.20% lat (msec) : 750=0.04% cpu : usr=0.24%, sys=1.64%, ctx=4377, 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=180777: Thu Aug 27 19:16:36 2026 read: IOPS=40, BW=161KiB/s (164kB/s)(5060KiB/31512msec) slat (usec): min=2539, max=80819, avg=13589.47, stdev=8337.19 clat (msec): min=38, max=383, avg=185.94, stdev=52.18 lat (msec): min=51, max=416, avg=199.54, stdev=54.36 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 80, max= 271, per=25.30%, avg=160.16, stdev=40.12, samples=62 iops : min= 20, max= 67, avg=39.53, stdev= 9.97, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5180KiB/31512msec); 0 zone resets slat (usec): min=34, max=11096, avg=205.58, stdev=643.91 clat (msec): min=49, max=431, avg=191.85, stdev=49.94 lat (msec): min=49, max=431, avg=192.06, stdev=49.94 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 72, max= 253, per=24.83%, avg=163.65, stdev=41.02, samples=62 iops : min= 18, max= 63, avg=40.40, stdev=10.28, samples=62 lat (msec) : 50=0.12%, 100=1.25%, 250=87.30%, 500=11.33% cpu : usr=0.23%, sys=1.57%, ctx=4324, 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=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=634KiB/s (649kB/s), 157KiB/s-161KiB/s (161kB/s-164kB/s), io=19.6MiB (20.5MB), run=31385-31673msec WRITE: bw=660KiB/s (675kB/s), 164KiB/s-168KiB/s (168kB/s-172kB/s), io=20.4MiB (21.4MB), run=31385-31673msec 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=180785: Thu Aug 27 19:16:45 2026 read: IOPS=2, BW=84.2MiB/s (88.3MB/s)(40.0MiB/475msec) slat (nsec): min=23733k, max=23733k, avg=23733373.00, stdev= 0.00 clat (nsec): min=429295k, max=429295k, avg=429294850.00, stdev= 0.00 lat (nsec): min=453033k, max=453033k, avg=453033231.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.32%, ctx=9, 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