== sanity test 398c: run fio to test AIO ================= 11:45:40 (1783352740) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.176088 s, 238 MB/s osc.lustre-OST0000-osc-ffff966ff4089800.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=146320: Mon Jul 6 11:46:24 2026 write: IOPS=62, BW=250KiB/s (256kB/s)(10.0MiB/41033msec); 0 zone resets slat (usec): min=33, max=2149, avg=272.53, stdev=173.11 clat (msec): min=35, max=757, avg=255.90, stdev=78.53 lat (msec): min=35, max=757, avg=256.18, stdev=78.54 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 161], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 226], 50.00th=[ 239], 60.00th=[ 255], | 70.00th=[ 279], 80.00th=[ 309], 90.00th=[ 359], 95.00th=[ 405], | 99.00th=[ 506], 99.50th=[ 531], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 136, max= 418, per=25.07%, avg=249.90, stdev=62.61, samples=81 iops : min= 34, max= 104, avg=62.33, stdev=15.75, samples=81 lat (msec) : 50=0.08%, 100=0.55%, 250=57.19%, 500=41.02%, 750=1.05% lat (msec) : 1000=0.12% cpu : usr=0.14%, sys=1.31%, ctx=2944, 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=146321: Mon Jul 6 11:46:24 2026 write: IOPS=62, BW=249KiB/s (255kB/s)(10.0MiB/41070msec); 0 zone resets slat (usec): min=34, max=2884, avg=257.91, stdev=183.62 clat (msec): min=74, max=553, avg=256.21, stdev=74.61 lat (msec): min=74, max=553, avg=256.46, stdev=74.64 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 161], 10.00th=[ 176], 20.00th=[ 201], | 30.00th=[ 215], 40.00th=[ 226], 50.00th=[ 241], 60.00th=[ 257], | 70.00th=[ 279], 80.00th=[ 309], 90.00th=[ 359], 95.00th=[ 405], | 99.00th=[ 493], 99.50th=[ 518], 99.90th=[ 542], 99.95th=[ 550], | 99.99th=[ 558] bw ( KiB/s): min= 135, max= 412, per=24.99%, avg=249.14, stdev=62.82, samples=81 iops : min= 33, max= 103, avg=62.15, stdev=15.83, samples=81 lat (msec) : 100=0.62%, 250=56.45%, 500=42.19%, 750=0.74% cpu : usr=0.18%, sys=1.19%, ctx=2830, 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=146322: Mon Jul 6 11:46:24 2026 write: IOPS=62, BW=249KiB/s (255kB/s)(10.0MiB/41056msec); 0 zone resets slat (usec): min=43, max=2416, avg=259.14, stdev=170.87 clat (msec): min=40, max=647, avg=256.19, stdev=76.75 lat (msec): min=41, max=647, avg=256.45, stdev=76.77 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 165], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 211], 40.00th=[ 224], 50.00th=[ 241], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 313], 90.00th=[ 363], 95.00th=[ 405], | 99.00th=[ 498], 99.50th=[ 531], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 651] bw ( KiB/s): min= 135, max= 412, per=25.02%, avg=249.43, stdev=64.05, samples=81 iops : min= 33, max= 103, avg=62.22, stdev=16.14, samples=81 lat (msec) : 50=0.62%, 250=55.78%, 500=42.70%, 750=0.90% cpu : usr=0.14%, sys=1.22%, ctx=2948, 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=146323: Mon Jul 6 11:46:24 2026 write: IOPS=62, BW=249KiB/s (255kB/s)(10.0MiB/41057msec); 0 zone resets slat (usec): min=52, max=6702, avg=264.26, stdev=219.95 clat (msec): min=36, max=623, avg=256.05, stdev=74.73 lat (msec): min=36, max=623, avg=256.32, stdev=74.75 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 199], | 30.00th=[ 211], 40.00th=[ 224], 50.00th=[ 241], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 309], 90.00th=[ 359], 95.00th=[ 409], | 99.00th=[ 493], 99.50th=[ 523], 99.90th=[ 550], 99.95th=[ 558], | 99.99th=[ 625] bw ( KiB/s): min= 135, max= 412, per=25.00%, avg=249.23, stdev=64.23, samples=81 iops : min= 33, max= 103, avg=62.17, stdev=16.17, samples=81 lat (msec) : 50=0.04%, 100=0.16%, 250=55.94%, 500=42.97%, 750=0.90% cpu : usr=0.15%, sys=1.22%, ctx=2983, 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=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=997KiB/s (1021kB/s), 249KiB/s-250KiB/s (255kB/s-256kB/s), io=40.0MiB (41.9MB), run=41033-41070msec 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=146339: Mon Jul 6 11:46:59 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(5048KiB/31394msec) slat (usec): min=1429, max=13916, avg=4072.21, stdev=1653.89 clat (msec): min=4, max=314, avg=123.61, stdev=34.32 lat (msec): min=8, max=321, avg=127.68, stdev=34.85 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 78], 10.00th=[ 86], 20.00th=[ 96], | 30.00th=[ 105], 40.00th=[ 114], 50.00th=[ 123], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 150], 90.00th=[ 167], 95.00th=[ 184], | 99.00th=[ 213], 99.50th=[ 243], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 87, max= 280, per=25.27%, avg=161.21, stdev=44.02, samples=62 iops : min= 21, max= 70, avg=40.10, stdev=11.12, samples=62 write: IOPS=41, BW=165KiB/s (169kB/s)(5192KiB/31394msec); 0 zone resets slat (usec): min=56, max=3850, avg=265.83, stdev=243.95 clat (msec): min=79, max=559, avg=261.73, stdev=74.73 lat (msec): min=80, max=560, avg=262.00, stdev=74.73 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 153], 10.00th=[ 169], 20.00th=[ 197], | 30.00th=[ 215], 40.00th=[ 236], 50.00th=[ 255], 60.00th=[ 279], | 70.00th=[ 300], 80.00th=[ 326], 90.00th=[ 363], 95.00th=[ 393], | 99.00th=[ 456], 99.50th=[ 481], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 88, max= 255, per=24.85%, avg=165.00, stdev=39.81, samples=62 iops : min= 22, max= 63, avg=41.03, stdev= 9.96, samples=62 lat (msec) : 10=0.16%, 20=0.12%, 50=0.23%, 100=11.41%, 250=61.09% lat (msec) : 500=26.88%, 750=0.12% cpu : usr=0.19%, sys=2.01%, ctx=5074, 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=146340: Mon Jul 6 11:46:59 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(4976KiB/31432msec) slat (usec): min=1360, max=19426, avg=4041.97, stdev=1649.53 clat (msec): min=2, max=253, avg=121.53, stdev=32.35 lat (msec): min=7, max=259, avg=125.58, stdev=32.80 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 77], 10.00th=[ 85], 20.00th=[ 96], | 30.00th=[ 106], 40.00th=[ 113], 50.00th=[ 121], 60.00th=[ 128], | 70.00th=[ 136], 80.00th=[ 146], 90.00th=[ 163], 95.00th=[ 178], | 99.00th=[ 207], 99.50th=[ 213], 99.90th=[ 247], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 64, max= 263, per=24.71%, avg=157.65, stdev=50.02, samples=62 iops : min= 16, max= 65, avg=39.19, stdev=12.48, samples=62 write: IOPS=41, BW=167KiB/s (171kB/s)(5264KiB/31432msec); 0 zone resets slat (usec): min=39, max=2546, avg=261.76, stdev=198.06 clat (msec): min=31, max=512, avg=262.64, stdev=75.63 lat (msec): min=32, max=512, avg=262.90, stdev=75.64 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 148], 10.00th=[ 167], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 236], 50.00th=[ 262], 60.00th=[ 284], | 70.00th=[ 300], 80.00th=[ 326], 90.00th=[ 359], 95.00th=[ 393], | 99.00th=[ 460], 99.50th=[ 481], 99.90th=[ 510], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 71, max= 288, per=25.14%, avg=166.94, stdev=41.21, samples=62 iops : min= 17, max= 72, avg=41.52, stdev=10.34, samples=62 lat (msec) : 4=0.04%, 10=0.12%, 20=0.16%, 50=0.43%, 100=11.68% lat (msec) : 250=60.16%, 500=27.34%, 750=0.08% cpu : usr=0.23%, sys=1.91%, ctx=4972, 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=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=146341: Mon Jul 6 11:46:59 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4984KiB/31395msec) slat (usec): min=37, max=14369, avg=3986.00, stdev=1645.69 clat (msec): min=2, max=374, avg=121.99, stdev=32.42 lat (msec): min=5, max=384, avg=125.98, stdev=33.02 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 77], 10.00th=[ 85], 20.00th=[ 95], | 30.00th=[ 105], 40.00th=[ 114], 50.00th=[ 122], 60.00th=[ 129], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 161], 95.00th=[ 178], | 99.00th=[ 203], 99.50th=[ 213], 99.90th=[ 247], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 64, max= 312, per=25.03%, avg=159.71, stdev=49.86, samples=62 iops : min= 16, max= 78, avg=39.73, stdev=12.47, samples=62 write: IOPS=41, BW=167KiB/s (171kB/s)(5256KiB/31395msec); 0 zone resets slat (usec): min=57, max=8066, avg=275.02, stdev=342.66 clat (msec): min=49, max=709, avg=262.12, stdev=80.08 lat (msec): min=49, max=710, avg=262.40, stdev=80.10 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 150], 10.00th=[ 169], 20.00th=[ 194], | 30.00th=[ 215], 40.00th=[ 234], 50.00th=[ 255], 60.00th=[ 284], | 70.00th=[ 305], 80.00th=[ 321], 90.00th=[ 359], 95.00th=[ 397], | 99.00th=[ 472], 99.50th=[ 558], 99.90th=[ 659], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 88, max= 288, per=25.11%, avg=166.74, stdev=41.84, samples=62 iops : min= 22, max= 72, avg=41.47, stdev=10.50, samples=62 lat (msec) : 4=0.08%, 10=0.04%, 20=0.16%, 50=0.23%, 100=12.38% lat (msec) : 250=60.27%, 500=26.41%, 750=0.43% cpu : usr=0.20%, sys=1.97%, ctx=4955, 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=146342: Mon Jul 6 11:46:59 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(5060KiB/31431msec) slat (usec): min=1394, max=21339, avg=4067.29, stdev=1623.37 clat (msec): min=14, max=351, avg=123.59, stdev=32.71 lat (msec): min=18, max=357, avg=127.67, stdev=33.19 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 80], 10.00th=[ 87], 20.00th=[ 97], | 30.00th=[ 106], 40.00th=[ 114], 50.00th=[ 123], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 165], 95.00th=[ 182], | 99.00th=[ 209], 99.50th=[ 241], 99.90th=[ 279], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 272, per=25.29%, avg=161.37, stdev=44.26, samples=62 iops : min= 17, max= 68, avg=40.13, stdev=11.08, samples=62 write: IOPS=41, BW=165KiB/s (169kB/s)(5180KiB/31431msec); 0 zone resets slat (usec): min=50, max=2752, avg=265.04, stdev=206.64 clat (msec): min=50, max=592, avg=262.61, stdev=76.55 lat (msec): min=50, max=592, avg=262.88, stdev=76.55 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 197], | 30.00th=[ 215], 40.00th=[ 236], 50.00th=[ 259], 60.00th=[ 284], | 70.00th=[ 305], 80.00th=[ 321], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 460], 99.50th=[ 518], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 88, max= 264, per=24.76%, avg=164.42, stdev=41.51, samples=62 iops : min= 22, max= 66, avg=40.89, stdev=10.42, samples=62 lat (msec) : 20=0.08%, 50=0.27%, 100=11.91%, 250=60.00%, 500=27.42% lat (msec) : 750=0.31% cpu : usr=0.25%, sys=1.93%, ctx=5048, 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=638KiB/s (654kB/s), 158KiB/s-161KiB/s (162kB/s-165kB/s), io=19.6MiB (20.5MB), run=31394-31432msec WRITE: bw=665KiB/s (681kB/s), 165KiB/s-167KiB/s (169kB/s-171kB/s), io=20.4MiB (21.4MB), run=31394-31432msec 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=146350: Mon Jul 6 11:47:04 2026 read: IOPS=4, BW=199MiB/s (209MB/s)(40.0MiB/201msec) slat (nsec): min=15033k, max=15033k, avg=15032632.00, stdev= 0.00 clat (nsec): min=175459k, max=175459k, avg=175459086.00, stdev= 0.00 lat (nsec): min=190497k, max=190497k, avg=190496562.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 176], 95.00th=[ 176], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.00%, ctx=37, 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=199MiB/s (209MB/s), 199MiB/s-199MiB/s (209MB/s-209MB/s), io=40.0MiB (41.9MB), run=201-201msec 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