== sanity test 398c: run fio to test AIO ================= 06:15:27 (1787566527) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.310555 s, 135 MB/s osc.lustre-OST0000-osc-ffff8d3118597800.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=181292: Mon Aug 24 06:15:59 2026 write: IOPS=104, BW=418KiB/s (428kB/s)(10.0MiB/24508msec); 0 zone resets slat (usec): min=27, max=14671, avg=189.93, stdev=642.39 clat (msec): min=45, max=298, avg=152.27, stdev=36.76 lat (msec): min=45, max=298, avg=152.46, stdev=36.73 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 101], 10.00th=[ 109], 20.00th=[ 124], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 279, max= 638, per=24.76%, avg=413.71, stdev=79.96, samples=48 iops : min= 69, max= 159, avg=103.02, stdev=20.06, samples=48 lat (msec) : 50=0.12%, 100=4.77%, 250=94.41%, 500=0.70% cpu : usr=0.18%, sys=0.99%, ctx=2286, majf=0, minf=8 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=181293: Mon Aug 24 06:15:59 2026 write: IOPS=104, BW=420KiB/s (430kB/s)(10.0MiB/24396msec); 0 zone resets slat (usec): min=28, max=15048, avg=181.63, stdev=634.61 clat (msec): min=24, max=269, avg=152.14, stdev=36.51 lat (msec): min=24, max=269, avg=152.32, stdev=36.52 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 100], 10.00th=[ 108], 20.00th=[ 124], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 249], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 295, max= 689, per=25.01%, avg=417.88, stdev=83.02, samples=48 iops : min= 73, max= 172, avg=104.08, stdev=20.84, samples=48 lat (msec) : 50=0.23%, 100=4.92%, 250=93.98%, 500=0.86% cpu : usr=0.22%, sys=1.03%, ctx=2535, majf=0, minf=8 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=181294: Mon Aug 24 06:15:59 2026 write: IOPS=104, BW=419KiB/s (429kB/s)(10.0MiB/24449msec); 0 zone resets slat (usec): min=27, max=10858, avg=177.36, stdev=523.01 clat (msec): min=16, max=265, avg=152.03, stdev=36.65 lat (msec): min=16, max=265, avg=152.21, stdev=36.65 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 97], 10.00th=[ 109], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 182], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 253], 99.95th=[ 257], | 99.99th=[ 266] bw ( KiB/s): min= 271, max= 671, per=24.92%, avg=416.35, stdev=77.31, samples=48 iops : min= 67, max= 167, avg=103.67, stdev=19.38, samples=48 lat (msec) : 20=0.08%, 50=0.23%, 100=5.23%, 250=94.02%, 500=0.43% cpu : usr=0.19%, sys=0.98%, ctx=2597, 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=181295: Mon Aug 24 06:15:59 2026 write: IOPS=104, BW=419KiB/s (429kB/s)(10.0MiB/24420msec); 0 zone resets slat (usec): min=29, max=9646, avg=180.61, stdev=510.06 clat (msec): min=25, max=258, avg=151.91, stdev=37.27 lat (msec): min=25, max=258, avg=152.09, stdev=37.27 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 96], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 245], 99.50th=[ 251], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 263, max= 671, per=24.95%, avg=416.98, stdev=82.00, samples=48 iops : min= 65, max= 167, avg=103.83, stdev=20.58, samples=48 lat (msec) : 50=0.35%, 100=5.43%, 250=93.67%, 500=0.55% cpu : usr=0.16%, sys=0.97%, ctx=2699, 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 Run status group 0 (all jobs): WRITE: bw=1671KiB/s (1711kB/s), 418KiB/s-420KiB/s (428kB/s-430kB/s), io=40.0MiB (41.9MB), run=24396-24508msec 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=181309: Mon Aug 24 06:16:34 2026 read: IOPS=43, BW=176KiB/s (180kB/s)(5048KiB/28710msec) slat (usec): min=77, max=95842, avg=12899.17, stdev=7790.46 clat (msec): min=19, max=334, avg=170.39, stdev=44.10 lat (msec): min=19, max=352, avg=183.29, stdev=45.72 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 249], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 80, max= 280, per=24.85%, avg=173.45, stdev=38.24, samples=56 iops : min= 20, max= 70, avg=42.91, stdev= 9.61, samples=56 write: IOPS=45, BW=181KiB/s (185kB/s)(5192KiB/28710msec); 0 zone resets slat (usec): min=30, max=9990, avg=201.83, stdev=628.03 clat (msec): min=19, max=338, avg=173.14, stdev=41.13 lat (msec): min=19, max=338, avg=173.35, stdev=41.15 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 116], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 103, max= 310, per=24.63%, avg=179.04, stdev=37.62, samples=56 iops : min= 25, max= 77, avg=44.29, stdev= 9.48, samples=56 lat (msec) : 20=0.20%, 50=0.43%, 100=1.64%, 250=93.20%, 500=4.53% cpu : usr=0.25%, sys=1.52%, ctx=4135, 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=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=181310: Mon Aug 24 06:16:34 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(4976KiB/28566msec) slat (usec): min=39, max=64223, avg=12485.63, stdev=7347.61 clat (msec): min=66, max=356, avg=170.59, stdev=43.92 lat (msec): min=88, max=393, avg=183.09, stdev=45.80 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 109], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 347], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 79, max= 303, per=24.87%, avg=173.57, stdev=38.26, samples=56 iops : min= 19, max= 75, avg=42.93, stdev= 9.62, samples=56 write: IOPS=46, BW=184KiB/s (189kB/s)(5264KiB/28566msec); 0 zone resets slat (usec): min=34, max=11144, avg=220.45, stdev=771.06 clat (msec): min=33, max=335, avg=173.62, stdev=41.06 lat (msec): min=33, max=335, avg=173.84, stdev=41.06 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 330], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 111, max= 296, per=25.39%, avg=184.55, stdev=44.50, samples=56 iops : min= 27, max= 74, avg=45.70, stdev=11.22, samples=56 lat (msec) : 50=0.12%, 100=1.91%, 250=93.32%, 500=4.65% cpu : usr=0.26%, sys=1.60%, ctx=4091, 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=181311: Mon Aug 24 06:16:34 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(4984KiB/28645msec) slat (usec): min=2627, max=48861, avg=12439.77, stdev=6939.21 clat (msec): min=44, max=314, avg=169.50, stdev=42.02 lat (msec): min=74, max=337, avg=181.95, stdev=43.48 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 72, max= 264, per=24.91%, avg=173.84, stdev=43.68, samples=56 iops : min= 18, max= 66, avg=43.00, stdev=11.00, samples=56 write: IOPS=45, BW=183KiB/s (188kB/s)(5256KiB/28645msec); 0 zone resets slat (usec): min=32, max=6864, avg=183.94, stdev=526.05 clat (msec): min=80, max=357, avg=174.04, stdev=40.79 lat (msec): min=80, max=357, avg=174.22, stdev=40.80 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 296], 99.50th=[ 321], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 95, max= 286, per=25.06%, avg=182.20, stdev=42.24, samples=56 iops : min= 23, max= 71, avg=45.11, stdev=10.59, samples=56 lat (msec) : 50=0.04%, 100=1.29%, 250=94.22%, 500=4.45% cpu : usr=0.22%, sys=1.66%, ctx=4283, 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=181312: Mon Aug 24 06:16:34 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(5060KiB/28642msec) slat (usec): min=2414, max=61886, avg=12152.56, stdev=6799.82 clat (msec): min=55, max=314, avg=168.50, stdev=41.71 lat (msec): min=70, max=343, avg=180.66, stdev=43.27 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 111], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 103, max= 247, per=25.26%, avg=176.29, stdev=38.42, samples=56 iops : min= 25, max= 61, avg=43.62, stdev= 9.68, samples=56 write: IOPS=45, BW=181KiB/s (185kB/s)(5180KiB/28642msec); 0 zone resets slat (usec): min=30, max=15354, avg=179.25, stdev=639.68 clat (msec): min=89, max=369, avg=175.79, stdev=41.60 lat (msec): min=90, max=369, avg=175.97, stdev=41.62 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 117], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 111, max= 280, per=24.74%, avg=179.86, stdev=38.39, samples=56 iops : min= 27, max= 70, avg=44.54, stdev= 9.62, samples=56 lat (msec) : 100=1.45%, 250=93.79%, 500=4.77% cpu : usr=0.31%, sys=1.65%, ctx=4428, 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=699KiB/s (716kB/s), 174KiB/s-177KiB/s (178kB/s-181kB/s), io=19.6MiB (20.5MB), run=28566-28710msec WRITE: bw=728KiB/s (745kB/s), 181KiB/s-184KiB/s (185kB/s-189kB/s), io=20.4MiB (21.4MB), run=28566-28710msec 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=181321: Mon Aug 24 06:16:43 2026 read: IOPS=2, BW=109MiB/s (115MB/s)(40.0MiB/366msec) slat (nsec): min=37047k, max=37047k, avg=37046857.00, stdev= 0.00 clat (nsec): min=315606k, max=315606k, avg=315605947.00, stdev= 0.00 lat (nsec): min=352657k, max=352657k, avg=352657277.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.19%, ctx=10, 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=109MiB/s (115MB/s), 109MiB/s-109MiB/s (115MB/s-115MB/s), io=40.0MiB (41.9MB), run=366-366msec 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