== sanity test 398c: run fio to test AIO ================= 11:50:05 (1787845805) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.429045 s, 97.8 MB/s osc.lustre-OST0000-osc-ffff9ecd86177800.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=179537: Thu Aug 27 11:50:52 2026 write: IOPS=71, BW=287KiB/s (294kB/s)(10.0MiB/35723msec); 0 zone resets slat (usec): min=28, max=14904, avg=228.92, stdev=885.65 clat (msec): min=31, max=366, avg=222.21, stdev=48.81 lat (msec): min=31, max=366, avg=222.45, stdev=48.81 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 153], 10.00th=[ 163], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 151, max= 389, per=24.89%, avg=284.99, stdev=53.19, samples=71 iops : min= 37, max= 97, avg=70.83, stdev=13.35, samples=71 lat (msec) : 50=0.08%, 100=0.66%, 250=71.60%, 500=27.66% cpu : usr=0.14%, sys=0.78%, ctx=2006, 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=179538: Thu Aug 27 11:50:52 2026 write: IOPS=71, BW=287KiB/s (294kB/s)(10.0MiB/35620msec); 0 zone resets slat (usec): min=27, max=15788, avg=228.63, stdev=910.08 clat (msec): min=30, max=386, avg=222.24, stdev=48.16 lat (msec): min=35, max=386, avg=222.48, stdev=48.14 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 264], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 167, max= 405, per=25.05%, avg=286.80, stdev=54.35, samples=70 iops : min= 41, max= 101, avg=71.27, stdev=13.64, samples=70 lat (msec) : 50=0.04%, 100=0.66%, 250=70.70%, 500=28.59% cpu : usr=0.19%, sys=0.74%, ctx=1338, 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=179539: Thu Aug 27 11:50:52 2026 write: IOPS=71, BW=286KiB/s (293kB/s)(10.0MiB/35772msec); 0 zone resets slat (usec): min=30, max=18178, avg=244.56, stdev=819.88 clat (msec): min=28, max=371, avg=222.37, stdev=46.48 lat (msec): min=29, max=372, avg=222.62, stdev=46.51 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 153], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 264], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 151, max= 384, per=24.88%, avg=284.85, stdev=53.77, samples=71 iops : min= 37, max= 96, avg=70.80, stdev=13.52, samples=71 lat (msec) : 50=0.12%, 100=0.04%, 250=69.69%, 500=30.16% cpu : usr=0.20%, sys=0.79%, ctx=2501, 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=179540: Thu Aug 27 11:50:52 2026 write: IOPS=71, BW=286KiB/s (293kB/s)(10.0MiB/35764msec); 0 zone resets slat (usec): min=30, max=26608, avg=292.53, stdev=1116.61 clat (msec): min=24, max=372, avg=222.30, stdev=47.66 lat (msec): min=24, max=372, avg=222.59, stdev=47.66 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 155], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 262], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 182, max= 405, per=24.89%, avg=285.04, stdev=49.18, samples=71 iops : min= 45, max= 101, avg=70.85, stdev=12.36, samples=71 lat (msec) : 50=0.12%, 100=0.23%, 250=69.18%, 500=30.47% cpu : usr=0.25%, sys=0.92%, ctx=2588, 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=1145KiB/s (1173kB/s), 286KiB/s-287KiB/s (293kB/s-294kB/s), io=40.0MiB (41.9MB), run=35620-35772msec 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=179556: Thu Aug 27 11:51:35 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(5048KiB/34003msec) slat (usec): min=51, max=66809, avg=14244.30, stdev=7673.12 clat (msec): min=21, max=390, avg=199.70, stdev=48.68 lat (msec): min=39, max=417, avg=213.95, stdev=50.24 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 132], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 64, max= 215, per=25.08%, avg=147.75, stdev=32.37, samples=67 iops : min= 16, max= 53, avg=36.46, stdev= 8.11, samples=67 write: IOPS=38, BW=153KiB/s (156kB/s)(5192KiB/34003msec); 0 zone resets slat (usec): min=31, max=8888, avg=220.74, stdev=622.14 clat (msec): min=32, max=373, avg=208.94, stdev=45.52 lat (msec): min=33, max=373, avg=209.16, stdev=45.51 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 70, max= 239, per=24.82%, avg=152.13, stdev=33.31, samples=67 iops : min= 17, max= 59, avg=37.57, stdev= 8.32, samples=67 lat (msec) : 50=0.12%, 100=0.90%, 250=82.58%, 500=16.41% cpu : usr=0.29%, sys=1.64%, ctx=4139, 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=179557: Thu Aug 27 11:51:35 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(4976KiB/34048msec) slat (usec): min=3451, max=56335, avg=14584.83, stdev=7863.60 clat (msec): min=39, max=416, avg=202.58, stdev=47.39 lat (msec): min=50, max=436, avg=217.17, stdev=48.96 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 209], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 78, max= 215, per=24.54%, avg=144.54, stdev=31.49, samples=67 iops : min= 19, max= 53, avg=35.66, stdev= 7.86, samples=67 write: IOPS=38, BW=155KiB/s (158kB/s)(5264KiB/34048msec); 0 zone resets slat (usec): min=31, max=7623, avg=211.89, stdev=529.64 clat (msec): min=30, max=351, avg=206.55, stdev=42.69 lat (msec): min=30, max=351, avg=206.76, stdev=42.70 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 146], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 228], 80.00th=[ 241], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 87, max= 240, per=25.13%, avg=154.03, stdev=34.95, samples=67 iops : min= 21, max= 60, avg=38.03, stdev= 8.73, samples=67 lat (msec) : 50=0.08%, 100=0.82%, 250=84.80%, 500=14.30% cpu : usr=0.25%, sys=1.51%, ctx=4645, 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=179558: Thu Aug 27 11:51:35 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(4984KiB/33949msec) slat (usec): min=37, max=68426, avg=14187.79, stdev=7792.95 clat (msec): min=51, max=390, avg=202.48, stdev=45.99 lat (msec): min=62, max=429, avg=216.68, stdev=47.39 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 79, max= 247, per=24.86%, avg=146.42, stdev=31.68, samples=67 iops : min= 19, max= 61, avg=36.12, stdev= 7.91, samples=67 write: IOPS=38, BW=155KiB/s (159kB/s)(5256KiB/33949msec); 0 zone resets slat (usec): min=34, max=9146, avg=220.61, stdev=606.94 clat (msec): min=56, max=377, avg=207.10, stdev=43.46 lat (msec): min=56, max=377, avg=207.33, stdev=43.46 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 71, max= 248, per=25.08%, avg=153.76, stdev=37.85, samples=67 iops : min= 17, max= 62, avg=37.97, stdev= 9.49, samples=67 lat (msec) : 100=0.66%, 250=83.87%, 500=15.47% cpu : usr=0.28%, sys=1.58%, ctx=4643, 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=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=179559: Thu Aug 27 11:51:35 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(5060KiB/34044msec) slat (usec): min=66, max=54286, avg=14154.27, stdev=7386.65 clat (msec): min=51, max=424, avg=201.04, stdev=46.85 lat (msec): min=53, max=435, avg=215.21, stdev=48.25 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 133], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 359], 99.90th=[ 393], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 63, max= 231, per=25.07%, avg=147.64, stdev=32.07, samples=67 iops : min= 15, max= 57, avg=36.43, stdev= 8.04, samples=67 write: IOPS=38, BW=152KiB/s (156kB/s)(5180KiB/34044msec); 0 zone resets slat (usec): min=36, max=15382, avg=224.42, stdev=774.92 clat (msec): min=43, max=394, avg=208.20, stdev=45.54 lat (msec): min=44, max=394, avg=208.43, stdev=45.52 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 268], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 94, max= 239, per=24.59%, avg=150.73, stdev=30.93, samples=67 iops : min= 23, max= 59, avg=37.21, stdev= 7.72, samples=67 lat (msec) : 50=0.08%, 100=0.98%, 250=83.52%, 500=15.43% cpu : usr=0.27%, sys=1.53%, ctx=4480, 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=589KiB/s (604kB/s), 146KiB/s-149KiB/s (150kB/s-152kB/s), io=19.6MiB (20.5MB), run=33949-34048msec WRITE: bw=614KiB/s (628kB/s), 152KiB/s-155KiB/s (156kB/s-159kB/s), io=20.4MiB (21.4MB), run=33949-34048msec 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=179568: Thu Aug 27 11:51:45 2026 read: IOPS=1, BW=74.9MiB/s (78.5MB/s)(40.0MiB/534msec) slat (nsec): min=30688k, max=30688k, avg=30688354.00, stdev= 0.00 clat (nsec): min=469177k, max=469177k, avg=469177403.00, stdev= 0.00 lat (nsec): min=499870k, max=499870k, avg=499869632.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=0.94%, ctx=12, 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=74.9MiB/s (78.5MB/s), 74.9MiB/s-74.9MiB/s (78.5MB/s-78.5MB/s), io=40.0MiB (41.9MB), run=534-534msec 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