== sanity test 398c: run fio to test AIO ================= 02:55:50 (1772178950) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.183788 s, 228 MB/s osc.lustre-OST0000-osc-ffff9f1dc01ab800.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=148779: Fri Feb 27 02:56:43 2026 write: IOPS=52, BW=208KiB/s (213kB/s)(10.0MiB/49196msec); 0 zone resets slat (usec): min=37, max=5499, avg=222.79, stdev=255.55 clat (msec): min=32, max=615, avg=307.07, stdev=78.06 lat (msec): min=32, max=615, avg=307.30, stdev=78.05 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 197], 10.00th=[ 218], 20.00th=[ 243], | 30.00th=[ 262], 40.00th=[ 284], 50.00th=[ 300], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 510], 99.50th=[ 542], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 617] bw ( KiB/s): min= 128, max= 417, per=25.03%, avg=208.01, stdev=49.18, samples=97 iops : min= 32, max= 104, avg=51.71, stdev=12.35, samples=97 lat (msec) : 50=0.23%, 100=0.35%, 250=24.14%, 500=74.18%, 750=1.09% cpu : usr=0.08%, sys=0.82%, ctx=3086, 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=148780: Fri Feb 27 02:56:43 2026 write: IOPS=52, BW=208KiB/s (213kB/s)(10.0MiB/49218msec); 0 zone resets slat (usec): min=47, max=3959, avg=221.36, stdev=196.43 clat (msec): min=56, max=727, avg=306.97, stdev=77.77 lat (msec): min=56, max=727, avg=307.19, stdev=77.79 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 194], 10.00th=[ 218], 20.00th=[ 243], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 405], 95.00th=[ 443], | 99.00th=[ 506], 99.50th=[ 542], 99.90th=[ 667], 99.95th=[ 701], | 99.99th=[ 726] bw ( KiB/s): min= 127, max= 347, per=25.01%, avg=207.87, stdev=46.17, samples=97 iops : min= 31, max= 86, avg=51.67, stdev=11.60, samples=97 lat (msec) : 100=0.66%, 250=23.55%, 500=74.61%, 750=1.17% cpu : usr=0.09%, sys=0.84%, ctx=3124, 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=148781: Fri Feb 27 02:56:43 2026 write: IOPS=51, BW=208KiB/s (213kB/s)(10.0MiB/49241msec); 0 zone resets slat (usec): min=45, max=6486, avg=232.23, stdev=268.66 clat (msec): min=77, max=689, avg=307.14, stdev=75.59 lat (msec): min=77, max=689, avg=307.37, stdev=75.61 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 197], 10.00th=[ 218], 20.00th=[ 245], | 30.00th=[ 264], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 368], 90.00th=[ 409], 95.00th=[ 443], | 99.00th=[ 493], 99.50th=[ 535], 99.90th=[ 575], 99.95th=[ 634], | 99.99th=[ 693] bw ( KiB/s): min= 128, max= 347, per=24.96%, avg=207.44, stdev=44.36, samples=97 iops : min= 32, max= 86, avg=51.57, stdev=11.13, samples=97 lat (msec) : 100=0.66%, 250=22.23%, 500=76.21%, 750=0.90% cpu : usr=0.08%, sys=0.86%, ctx=3041, 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=148782: Fri Feb 27 02:56:43 2026 write: IOPS=51, BW=208KiB/s (213kB/s)(10.0MiB/49242msec); 0 zone resets slat (usec): min=38, max=6084, avg=229.85, stdev=233.03 clat (msec): min=77, max=690, avg=307.18, stdev=78.00 lat (msec): min=77, max=690, avg=307.41, stdev=78.01 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 192], 10.00th=[ 218], 20.00th=[ 243], | 30.00th=[ 264], 40.00th=[ 279], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 409], 95.00th=[ 435], | 99.00th=[ 518], 99.50th=[ 550], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 135, max= 418, per=25.02%, avg=207.93, stdev=44.90, samples=97 iops : min= 33, max= 104, avg=51.69, stdev=11.28, samples=97 lat (msec) : 100=0.74%, 250=23.09%, 500=74.80%, 750=1.37% cpu : usr=0.09%, sys=0.87%, ctx=3110, 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=832KiB/s (852kB/s), 208KiB/s-208KiB/s (213kB/s-213kB/s), io=40.0MiB (41.9MB), run=49196-49242msec 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=148799: Fri Feb 27 02:57:17 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/30980msec) slat (usec): min=1320, max=19966, avg=4035.81, stdev=1708.57 clat (msec): min=4, max=254, avg=121.98, stdev=31.40 lat (msec): min=8, max=259, avg=126.03, stdev=31.81 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 82], 10.00th=[ 88], 20.00th=[ 99], | 30.00th=[ 107], 40.00th=[ 113], 50.00th=[ 118], 60.00th=[ 126], | 70.00th=[ 134], 80.00th=[ 144], 90.00th=[ 163], 95.00th=[ 178], | 99.00th=[ 220], 99.50th=[ 228], 99.90th=[ 247], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 71, max= 272, per=25.13%, avg=162.59, stdev=46.70, samples=61 iops : min= 17, max= 68, avg=40.52, stdev=11.70, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5192KiB/30980msec); 0 zone resets slat (usec): min=59, max=4474, avg=215.08, stdev=190.42 clat (msec): min=81, max=454, avg=258.40, stdev=69.81 lat (msec): min=81, max=454, avg=258.62, stdev=69.82 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 150], 10.00th=[ 169], 20.00th=[ 199], | 30.00th=[ 218], 40.00th=[ 239], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 426], 99.50th=[ 435], 99.90th=[ 451], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 103, max= 247, per=24.72%, avg=166.61, stdev=32.41, samples=61 iops : min= 25, max= 61, avg=41.54, stdev= 8.06, samples=61 lat (msec) : 10=0.12%, 20=0.16%, 50=0.27%, 100=10.31%, 250=62.19% lat (msec) : 500=26.95% cpu : usr=0.21%, sys=1.69%, ctx=4898, 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=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=148800: Fri Feb 27 02:57:17 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4976KiB/30957msec) slat (usec): min=62, max=16404, avg=4075.15, stdev=1791.00 clat (msec): min=2, max=256, avg=121.50, stdev=29.57 lat (msec): min=5, max=264, avg=125.59, stdev=30.08 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 82], 10.00th=[ 90], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 113], 50.00th=[ 120], 60.00th=[ 127], | 70.00th=[ 133], 80.00th=[ 142], 90.00th=[ 159], 95.00th=[ 174], | 99.00th=[ 218], 99.50th=[ 228], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 72, max= 264, per=24.66%, avg=159.56, stdev=47.40, samples=61 iops : min= 18, max= 66, avg=39.77, stdev=11.80, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5264KiB/30957msec); 0 zone resets slat (usec): min=41, max=5376, avg=219.01, stdev=241.34 clat (msec): min=40, max=453, avg=257.24, stdev=70.93 lat (msec): min=40, max=454, avg=257.46, stdev=70.94 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 157], 10.00th=[ 171], 20.00th=[ 199], | 30.00th=[ 218], 40.00th=[ 234], 50.00th=[ 251], 60.00th=[ 271], | 70.00th=[ 296], 80.00th=[ 317], 90.00th=[ 355], 95.00th=[ 384], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 447], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 79, max= 246, per=25.09%, avg=169.08, stdev=36.72, samples=61 iops : min= 19, max= 61, avg=42.16, stdev= 9.22, samples=61 lat (msec) : 4=0.04%, 20=0.12%, 50=0.51%, 100=10.23%, 250=63.12% lat (msec) : 500=25.98% cpu : usr=0.21%, sys=1.68%, ctx=4765, 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=148801: Fri Feb 27 02:57:17 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4984KiB/30980msec) slat (usec): min=1520, max=22436, avg=4098.71, stdev=1788.20 clat (msec): min=3, max=268, avg=123.03, stdev=29.48 lat (msec): min=8, max=275, avg=127.13, stdev=30.01 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 83], 10.00th=[ 91], 20.00th=[ 100], | 30.00th=[ 108], 40.00th=[ 114], 50.00th=[ 121], 60.00th=[ 127], | 70.00th=[ 136], 80.00th=[ 144], 90.00th=[ 161], 95.00th=[ 174], | 99.00th=[ 215], 99.50th=[ 224], 99.90th=[ 247], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 56, max= 280, per=24.81%, avg=160.52, stdev=46.44, samples=61 iops : min= 14, max= 70, avg=40.02, stdev=11.60, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5256KiB/30980msec); 0 zone resets slat (usec): min=56, max=4452, avg=221.14, stdev=224.48 clat (msec): min=62, max=467, avg=255.90, stdev=72.28 lat (msec): min=62, max=467, avg=256.12, stdev=72.29 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 150], 10.00th=[ 169], 20.00th=[ 194], | 30.00th=[ 213], 40.00th=[ 230], 50.00th=[ 249], 60.00th=[ 268], | 70.00th=[ 292], 80.00th=[ 321], 90.00th=[ 359], 95.00th=[ 384], | 99.00th=[ 435], 99.50th=[ 451], 99.90th=[ 464], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 80, max= 272, per=24.84%, avg=167.39, stdev=37.38, samples=61 iops : min= 20, max= 68, avg=41.74, stdev= 9.33, samples=61 lat (msec) : 4=0.04%, 10=0.04%, 50=0.23%, 100=10.16%, 250=64.06% lat (msec) : 500=25.47% cpu : usr=0.17%, sys=1.70%, ctx=4844, 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=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=148802: Fri Feb 27 02:57:17 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(5060KiB/30917msec) slat (usec): min=1487, max=16231, avg=4072.36, stdev=1706.12 clat (msec): min=13, max=264, avg=124.49, stdev=29.71 lat (msec): min=20, max=272, avg=128.57, stdev=30.08 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 86], 10.00th=[ 92], 20.00th=[ 101], | 30.00th=[ 108], 40.00th=[ 114], 50.00th=[ 121], 60.00th=[ 129], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 163], 95.00th=[ 178], | 99.00th=[ 207], 99.50th=[ 228], 99.90th=[ 241], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 64, max= 256, per=25.33%, avg=163.87, stdev=42.23, samples=61 iops : min= 16, max= 64, avg=40.85, stdev=10.51, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5180KiB/30917msec); 0 zone resets slat (usec): min=50, max=4590, avg=215.88, stdev=228.46 clat (msec): min=53, max=472, avg=255.60, stdev=70.26 lat (msec): min=53, max=472, avg=255.82, stdev=70.27 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 150], 10.00th=[ 167], 20.00th=[ 194], | 30.00th=[ 213], 40.00th=[ 232], 50.00th=[ 249], 60.00th=[ 268], | 70.00th=[ 296], 80.00th=[ 317], 90.00th=[ 351], 95.00th=[ 384], | 99.00th=[ 426], 99.50th=[ 435], 99.90th=[ 451], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 63, max= 240, per=24.70%, avg=166.49, stdev=34.71, samples=61 iops : min= 15, max= 60, avg=41.51, stdev= 8.71, samples=61 lat (msec) : 20=0.08%, 50=0.16%, 100=9.92%, 250=64.77%, 500=25.08% cpu : usr=0.19%, sys=1.68%, ctx=4755, majf=0, minf=15 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=648KiB/s (663kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=19.6MiB (20.5MB), run=30917-30980msec WRITE: bw=674KiB/s (691kB/s), 168KiB/s-170KiB/s (172kB/s-174kB/s), io=20.4MiB (21.4MB), run=30917-30980msec 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=148809: Fri Feb 27 02:57:21 2026 read: IOPS=7, BW=308MiB/s (323MB/s)(40.0MiB/130msec) slat (nsec): min=10931k, max=10931k, avg=10931218.00, stdev= 0.00 clat (nsec): min=111056k, max=111056k, avg=111056139.00, stdev= 0.00 lat (nsec): min=121991k, max=121991k, avg=121991372.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 111], | 70.00th=[ 111], 80.00th=[ 111], 90.00th=[ 111], 95.00th=[ 111], | 99.00th=[ 111], 99.50th=[ 111], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.98%, ctx=40, 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=308MiB/s (323MB/s), 308MiB/s-308MiB/s (323MB/s-323MB/s), io=40.0MiB (41.9MB), run=130-130msec 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