== sanity test 398c: run fio to test AIO ================= 18:33:40 (1780526020) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.160679 s, 261 MB/s osc.lustre-OST0000-osc-ffff9956ebe30800.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=157158: Wed Jun 3 18:34:14 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30764msec); 0 zone resets slat (usec): min=45, max=786, avg=232.13, stdev=107.84 clat (msec): min=46, max=427, avg=191.71, stdev=49.28 lat (msec): min=46, max=428, avg=191.94, stdev=49.30 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 284], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 426] bw ( KiB/s): min= 144, max= 581, per=24.89%, avg=331.23, stdev=68.92, samples=61 iops : min= 36, max= 145, avg=82.80, stdev=17.22, samples=61 lat (msec) : 50=0.55%, 100=0.74%, 250=90.27%, 500=8.44% cpu : usr=0.15%, sys=1.57%, ctx=2864, 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=157159: Wed Jun 3 18:34:14 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30754msec); 0 zone resets slat (usec): min=58, max=842, avg=236.66, stdev=102.09 clat (msec): min=54, max=421, avg=191.72, stdev=50.17 lat (msec): min=55, max=421, avg=191.96, stdev=50.20 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 288], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 152, max= 613, per=24.88%, avg=331.10, stdev=69.94, samples=61 iops : min= 38, max= 153, avg=82.77, stdev=17.47, samples=61 lat (msec) : 100=1.60%, 250=89.53%, 500=8.87% cpu : usr=0.12%, sys=1.66%, ctx=2905, 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=157160: Wed Jun 3 18:34:14 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30754msec); 0 zone resets slat (usec): min=59, max=978, avg=238.14, stdev=108.11 clat (msec): min=50, max=427, avg=191.64, stdev=50.22 lat (msec): min=50, max=428, avg=191.88, stdev=50.25 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 168, max= 613, per=24.89%, avg=331.23, stdev=70.73, samples=61 iops : min= 42, max= 153, avg=82.80, stdev=17.67, samples=61 lat (msec) : 100=1.60%, 250=89.69%, 500=8.71% cpu : usr=0.13%, sys=1.62%, ctx=2899, 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=157161: Wed Jun 3 18:34:14 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30754msec); 0 zone resets slat (usec): min=51, max=1079, avg=228.37, stdev=110.73 clat (msec): min=11, max=423, avg=191.83, stdev=51.19 lat (msec): min=11, max=424, avg=192.06, stdev=51.21 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 127], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 426] bw ( KiB/s): min= 144, max= 626, per=24.88%, avg=331.18, stdev=72.20, samples=61 iops : min= 36, max= 156, avg=82.79, stdev=18.02, samples=61 lat (msec) : 20=0.04%, 50=0.16%, 100=2.07%, 250=89.10%, 500=8.63% cpu : usr=0.18%, sys=1.51%, ctx=2988, 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=1331KiB/s (1363kB/s), 333KiB/s-333KiB/s (341kB/s-341kB/s), io=40.0MiB (41.9MB), run=30754-30764msec 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=157175: Wed Jun 3 18:34:36 2026 read: IOPS=65, BW=262KiB/s (268kB/s)(5048KiB/19269msec) slat (usec): min=1079, max=7650, avg=2539.38, stdev=893.76 clat (msec): min=2, max=164, avg=76.78, stdev=14.38 lat (msec): min=5, max=166, avg=79.32, stdev=14.50 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 74], 50.00th=[ 77], 60.00th=[ 80], | 70.00th=[ 83], 80.00th=[ 87], 90.00th=[ 94], 95.00th=[ 101], | 99.00th=[ 112], 99.50th=[ 117], 99.90th=[ 148], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 176, max= 360, per=25.28%, avg=262.87, stdev=52.52, samples=38 iops : min= 44, max= 90, avg=65.71, stdev=13.13, samples=38 write: IOPS=67, BW=269KiB/s (276kB/s)(5192KiB/19269msec); 0 zone resets slat (usec): min=60, max=580, avg=185.20, stdev=86.39 clat (msec): min=39, max=278, avg=159.56, stdev=37.71 lat (msec): min=39, max=279, avg=159.75, stdev=37.71 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 100], 10.00th=[ 113], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 209], 95.00th=[ 230], | 99.00th=[ 264], 99.50th=[ 268], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 192, max= 376, per=24.84%, avg=269.05, stdev=40.77, samples=38 iops : min= 48, max= 94, avg=67.26, stdev=10.19, samples=38 lat (msec) : 4=0.04%, 10=0.08%, 20=0.16%, 50=0.55%, 100=48.59% lat (msec) : 250=49.65%, 500=0.94% cpu : usr=0.22%, sys=2.29%, ctx=4930, 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=157176: Wed Jun 3 18:34:36 2026 read: IOPS=64, BW=258KiB/s (264kB/s)(4976KiB/19268msec) slat (usec): min=57, max=6999, avg=2548.91, stdev=890.70 clat (msec): min=3, max=184, avg=76.97, stdev=14.26 lat (msec): min=6, max=188, avg=79.52, stdev=14.39 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 71], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 81], | 70.00th=[ 84], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 101], | 99.00th=[ 114], 99.50th=[ 121], 99.90th=[ 153], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 144, max= 344, per=24.88%, avg=258.76, stdev=53.33, samples=38 iops : min= 36, max= 86, avg=64.68, stdev=13.33, samples=38 write: IOPS=68, BW=273KiB/s (280kB/s)(5264KiB/19268msec); 0 zone resets slat (usec): min=61, max=794, avg=183.62, stdev=86.33 clat (msec): min=40, max=315, avg=158.64, stdev=39.34 lat (msec): min=40, max=316, avg=158.83, stdev=39.34 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 100], 10.00th=[ 111], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 184, max= 360, per=25.20%, avg=272.95, stdev=43.85, samples=38 iops : min= 46, max= 90, avg=68.24, stdev=10.96, samples=38 lat (msec) : 4=0.04%, 10=0.04%, 20=0.16%, 50=0.82%, 100=47.77% lat (msec) : 250=50.00%, 500=1.17% cpu : usr=0.19%, sys=2.26%, ctx=4816, 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=157177: Wed Jun 3 18:34:36 2026 read: IOPS=64, BW=258KiB/s (265kB/s)(4984KiB/19290msec) slat (usec): min=1059, max=6988, avg=2539.34, stdev=854.52 clat (msec): min=3, max=116, avg=75.76, stdev=13.96 lat (msec): min=5, max=120, avg=78.30, stdev=14.11 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 66], | 30.00th=[ 69], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 79], | 70.00th=[ 82], 80.00th=[ 86], 90.00th=[ 93], 95.00th=[ 101], | 99.00th=[ 110], 99.50th=[ 113], 99.90th=[ 115], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 136, max= 376, per=24.85%, avg=258.47, stdev=64.62, samples=38 iops : min= 34, max= 94, avg=64.61, stdev=16.16, samples=38 write: IOPS=68, BW=272KiB/s (279kB/s)(5256KiB/19290msec); 0 zone resets slat (usec): min=63, max=645, avg=186.11, stdev=87.58 clat (msec): min=18, max=281, avg=159.74, stdev=39.26 lat (msec): min=18, max=281, avg=159.93, stdev=39.26 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 101], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 208, max= 352, per=24.90%, avg=269.63, stdev=33.65, samples=38 iops : min= 52, max= 88, avg=67.39, stdev= 8.42, samples=38 lat (msec) : 4=0.04%, 10=0.08%, 20=0.31%, 50=0.90%, 100=47.50% lat (msec) : 250=49.96%, 500=1.21% cpu : usr=0.23%, sys=2.25%, ctx=4947, 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=157178: Wed Jun 3 18:34:36 2026 read: IOPS=65, BW=263KiB/s (270kB/s)(5060KiB/19206msec) slat (usec): min=1061, max=8043, avg=2537.94, stdev=878.52 clat (msec): min=4, max=174, avg=76.41, stdev=13.60 lat (msec): min=6, max=177, avg=78.95, stdev=13.72 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 80], | 70.00th=[ 83], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 99], | 99.00th=[ 110], 99.50th=[ 113], 99.90th=[ 161], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 168, max= 352, per=25.36%, avg=263.79, stdev=53.50, samples=38 iops : min= 42, max= 88, avg=65.95, stdev=13.38, samples=38 write: IOPS=67, BW=270KiB/s (276kB/s)(5180KiB/19206msec); 0 zone resets slat (usec): min=50, max=729, avg=186.00, stdev=87.82 clat (msec): min=43, max=278, avg=159.29, stdev=38.08 lat (msec): min=44, max=278, avg=159.48, stdev=38.08 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 101], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 200, max= 360, per=24.79%, avg=268.45, stdev=41.08, samples=38 iops : min= 50, max= 90, avg=67.11, stdev=10.27, samples=38 lat (msec) : 10=0.12%, 20=0.08%, 50=0.47%, 100=49.38%, 250=48.95% lat (msec) : 500=1.02% cpu : usr=0.19%, sys=2.31%, ctx=4945, 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=1040KiB/s (1065kB/s), 258KiB/s-263KiB/s (264kB/s-270kB/s), io=19.6MiB (20.5MB), run=19206-19290msec WRITE: bw=1083KiB/s (1109kB/s), 269KiB/s-273KiB/s (276kB/s-280kB/s), io=20.4MiB (21.4MB), run=19206-19290msec 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=157184: Wed Jun 3 18:34:40 2026 read: IOPS=7, BW=313MiB/s (328MB/s)(40.0MiB/128msec) slat (nsec): min=13534k, max=13534k, avg=13533958.00, stdev= 0.00 clat (nsec): min=109075k, max=109075k, avg=109075209.00, stdev= 0.00 lat (nsec): min=122612k, max=122612k, avg=122612100.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 110], | 70.00th=[ 110], 80.00th=[ 110], 90.00th=[ 110], 95.00th=[ 110], | 99.00th=[ 110], 99.50th=[ 110], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=9.45%, ctx=37, 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=313MiB/s (328MB/s), 313MiB/s-313MiB/s (328MB/s-328MB/s), io=40.0MiB (41.9MB), run=128-128msec 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