== sanity test 398c: run fio to test AIO ================= 00:37:01 (1790743021) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.460888 s, 91.0 MB/s osc.lustre-OST0000-osc-ffff99a202cd4800.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=180720: Wed Sep 30 00:37:38 2026 write: IOPS=94, BW=379KiB/s (388kB/s)(10.0MiB/27044msec); 0 zone resets slat (usec): min=28, max=20127, avg=164.63, stdev=634.58 clat (msec): min=10, max=381, avg=167.96, stdev=43.97 lat (msec): min=11, max=381, avg=168.13, stdev=43.96 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 108], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 253], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 239, max= 526, per=25.07%, avg=379.62, stdev=78.80, samples=53 iops : min= 59, max= 131, avg=94.49, stdev=19.71, samples=53 lat (msec) : 20=0.04%, 50=0.04%, 100=1.52%, 250=93.24%, 500=5.16% cpu : usr=0.17%, sys=0.91%, ctx=2569, 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=180721: Wed Sep 30 00:37:38 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26856msec); 0 zone resets slat (usec): min=28, max=21362, avg=147.29, stdev=632.51 clat (msec): min=83, max=372, avg=167.50, stdev=44.96 lat (msec): min=83, max=372, avg=167.65, stdev=44.95 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 114], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 152, max= 526, per=25.16%, avg=380.87, stdev=83.60, samples=53 iops : min= 38, max= 131, avg=94.81, stdev=20.93, samples=53 lat (msec) : 100=2.15%, 250=93.12%, 500=4.73% cpu : usr=0.17%, sys=0.76%, ctx=2090, 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=180722: Wed Sep 30 00:37:38 2026 write: IOPS=95, BW=383KiB/s (392kB/s)(10.0MiB/26752msec); 0 zone resets slat (usec): min=28, max=11612, avg=197.30, stdev=669.51 clat (msec): min=13, max=416, avg=166.81, stdev=45.71 lat (msec): min=14, max=416, avg=167.01, stdev=45.69 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 247], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 418] bw ( KiB/s): min= 200, max= 574, per=25.14%, avg=380.58, stdev=81.77, samples=53 iops : min= 50, max= 143, avg=94.72, stdev=20.42, samples=53 lat (msec) : 20=0.04%, 50=0.16%, 100=2.89%, 250=91.99%, 500=4.92% cpu : usr=0.17%, sys=1.00%, ctx=3263, 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=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=180723: Wed Sep 30 00:37:38 2026 write: IOPS=94, BW=379KiB/s (388kB/s)(10.0MiB/27054msec); 0 zone resets slat (usec): min=26, max=12312, avg=139.37, stdev=540.94 clat (msec): min=51, max=346, avg=167.95, stdev=42.41 lat (msec): min=52, max=346, avg=168.09, stdev=42.42 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 113], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 215], 95.00th=[ 243], | 99.00th=[ 305], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 144, max= 638, per=24.96%, avg=377.85, stdev=84.68, samples=53 iops : min= 36, max= 159, avg=94.06, stdev=21.17, samples=53 lat (msec) : 100=1.84%, 250=93.83%, 500=4.34% cpu : usr=0.13%, sys=0.77%, ctx=1802, 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=1514KiB/s (1550kB/s), 379KiB/s-383KiB/s (388kB/s-392kB/s), io=40.0MiB (41.9MB), run=26752-27054msec 0% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=180737: Wed Sep 30 00:38:20 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5048KiB/31789msec) slat (usec): min=2310, max=67177, avg=13921.45, stdev=8317.81 clat (msec): min=28, max=427, avg=187.15, stdev=55.23 lat (msec): min=38, max=444, avg=201.07, stdev=57.36 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 106], 10.00th=[ 123], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 363], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 32, max= 237, per=24.92%, avg=157.27, stdev=41.03, samples=62 iops : min= 8, max= 59, avg=38.84, stdev=10.35, samples=62 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31789msec); 0 zone resets slat (usec): min=33, max=5292, avg=158.74, stdev=339.40 clat (msec): min=36, max=405, avg=190.95, stdev=48.92 lat (msec): min=36, max=405, avg=191.11, stdev=48.91 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 380], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 26, max= 304, per=24.78%, avg=162.79, stdev=43.27, samples=62 iops : min= 6, max= 76, avg=40.23, stdev=10.88, samples=62 lat (msec) : 50=0.35%, 100=1.72%, 250=85.62%, 500=12.30% cpu : usr=0.26%, sys=1.55%, ctx=4526, 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=180738: Wed Sep 30 00:38:20 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4976KiB/31680msec) slat (usec): min=2755, max=56486, avg=14129.41, stdev=8150.58 clat (msec): min=29, max=377, avg=185.44, stdev=49.63 lat (msec): min=36, max=424, avg=199.57, stdev=51.79 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 37, max= 253, per=24.88%, avg=157.00, stdev=41.75, samples=62 iops : min= 9, max= 63, avg=38.77, stdev=10.54, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31680msec); 0 zone resets slat (usec): min=28, max=16223, avg=175.42, stdev=617.56 clat (msec): min=75, max=405, avg=192.71, stdev=49.92 lat (msec): min=75, max=405, avg=192.89, stdev=49.89 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 75, max= 280, per=25.33%, avg=166.42, stdev=44.96, samples=62 iops : min= 18, max= 70, avg=41.13, stdev=11.34, samples=62 lat (msec) : 50=0.16%, 100=1.41%, 250=87.30%, 500=11.13% cpu : usr=0.27%, sys=1.64%, ctx=4289, 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=180739: Wed Sep 30 00:38:20 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31778msec) slat (usec): min=2444, max=64308, avg=13847.29, stdev=8279.71 clat (msec): min=15, max=418, avg=186.51, stdev=51.59 lat (msec): min=22, max=428, avg=200.36, stdev=53.44 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 111], 10.00th=[ 123], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 53, max= 254, per=24.80%, avg=156.48, stdev=43.44, samples=62 iops : min= 13, max= 63, avg=38.65, stdev=10.95, samples=62 write: IOPS=41, BW=165KiB/s (169kB/s)(5256KiB/31778msec); 0 zone resets slat (usec): min=30, max=15297, avg=205.53, stdev=770.86 clat (msec): min=57, max=418, avg=192.88, stdev=50.01 lat (msec): min=57, max=418, avg=193.09, stdev=50.01 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 330], 99.90th=[ 355], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 59, max= 264, per=24.99%, avg=164.18, stdev=44.16, samples=62 iops : min= 14, max= 66, avg=40.56, stdev=11.11, samples=62 lat (msec) : 20=0.08%, 100=1.33%, 250=86.45%, 500=12.15% cpu : usr=0.28%, sys=1.53%, ctx=4565, 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=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=180740: Wed Sep 30 00:38:20 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(5060KiB/31603msec) slat (usec): min=48, max=69813, avg=13860.46, stdev=8549.63 clat (msec): min=23, max=400, avg=188.78, stdev=53.64 lat (msec): min=23, max=426, avg=202.65, stdev=55.63 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 79, max= 232, per=25.37%, avg=160.06, stdev=32.12, samples=62 iops : min= 19, max= 58, avg=39.55, stdev= 8.12, samples=62 write: IOPS=40, BW=164KiB/s (168kB/s)(5180KiB/31603msec); 0 zone resets slat (usec): min=33, max=14261, avg=215.74, stdev=805.69 clat (msec): min=90, max=367, avg=191.81, stdev=50.72 lat (msec): min=90, max=367, avg=192.03, stdev=50.69 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 115], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 71, max= 324, per=24.83%, avg=163.11, stdev=46.80, samples=62 iops : min= 17, max= 81, avg=40.32, stdev=11.83, samples=62 lat (msec) : 50=0.16%, 100=1.33%, 250=84.88%, 500=13.63% cpu : usr=0.18%, sys=1.65%, ctx=4361, 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=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=631KiB/s (646kB/s), 157KiB/s-160KiB/s (161kB/s-164kB/s), io=19.6MiB (20.5MB), run=31603-31789msec WRITE: bw=657KiB/s (673kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31603-31789msec 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=180749: Wed Sep 30 00:38:29 2026 read: IOPS=1, BW=77.7MiB/s (81.4MB/s)(40.0MiB/515msec) slat (nsec): min=44292k, max=44292k, avg=44291884.00, stdev= 0.00 clat (nsec): min=445963k, max=445963k, avg=445963016.00, stdev= 0.00 lat (nsec): min=490260k, max=490260k, avg=490260140.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.19%, sys=2.92%, ctx=12, 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=77.7MiB/s (81.4MB/s), 77.7MiB/s-77.7MiB/s (81.4MB/s-81.4MB/s), io=40.0MiB (41.9MB), run=515-515msec 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