== sanity test 398c: run fio to test AIO ================= 08:01:46 (1786968106) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.576486 s, 72.8 MB/s osc.lustre-OST0000-osc-ffff961a42dca800.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=180209: Mon Aug 17 08:02:22 2026 write: IOPS=102, BW=410KiB/s (420kB/s)(10.0MiB/24947msec); 0 zone resets slat (usec): min=36, max=17850, avg=264.44, stdev=783.03 clat (msec): min=36, max=293, avg=154.83, stdev=44.31 lat (msec): min=36, max=294, avg=155.10, stdev=44.34 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 92], 10.00th=[ 103], 20.00th=[ 117], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 174], 80.00th=[ 190], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 268], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 231, max= 638, per=24.97%, avg=409.73, stdev=106.42, samples=49 iops : min= 57, max= 159, avg=102.02, stdev=26.70, samples=49 lat (msec) : 50=0.04%, 100=8.48%, 250=87.93%, 500=3.55% cpu : usr=0.19%, sys=1.23%, ctx=2404, 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=180210: Mon Aug 17 08:02:22 2026 write: IOPS=102, BW=411KiB/s (420kB/s)(10.0MiB/24944msec); 0 zone resets slat (usec): min=35, max=18227, avg=268.91, stdev=755.45 clat (msec): min=9, max=310, avg=154.48, stdev=43.79 lat (msec): min=9, max=310, avg=154.75, stdev=43.80 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 96], 10.00th=[ 103], 20.00th=[ 118], | 30.00th=[ 129], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 174], 80.00th=[ 192], 90.00th=[ 215], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 313] bw ( KiB/s): min= 238, max= 670, per=24.93%, avg=409.16, stdev=105.94, samples=49 iops : min= 59, max= 167, avg=101.88, stdev=26.58, samples=49 lat (msec) : 10=0.04%, 20=0.12%, 50=0.04%, 100=7.73%, 250=89.41% lat (msec) : 500=2.66% cpu : usr=0.19%, sys=1.30%, ctx=2758, 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=180211: Mon Aug 17 08:02:22 2026 write: IOPS=103, BW=413KiB/s (422kB/s)(10.0MiB/24822msec); 0 zone resets slat (usec): min=36, max=16029, avg=280.48, stdev=780.21 clat (msec): min=18, max=310, avg=154.72, stdev=45.41 lat (msec): min=18, max=310, avg=155.00, stdev=45.42 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 93], 10.00th=[ 103], 20.00th=[ 117], | 30.00th=[ 129], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 157], | 70.00th=[ 174], 80.00th=[ 192], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 249, max= 646, per=25.12%, avg=412.20, stdev=101.30, samples=49 iops : min= 62, max= 161, avg=102.63, stdev=25.38, samples=49 lat (msec) : 20=0.04%, 50=0.16%, 100=7.77%, 250=88.48%, 500=3.55% cpu : usr=0.21%, sys=1.34%, ctx=2834, 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=180212: Mon Aug 17 08:02:22 2026 write: IOPS=102, BW=410KiB/s (420kB/s)(10.0MiB/24952msec); 0 zone resets slat (usec): min=36, max=16625, avg=255.39, stdev=852.26 clat (msec): min=20, max=303, avg=154.43, stdev=44.87 lat (msec): min=20, max=303, avg=154.69, stdev=44.93 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 96], 10.00th=[ 103], 20.00th=[ 118], | 30.00th=[ 129], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 157], | 70.00th=[ 174], 80.00th=[ 190], 90.00th=[ 218], 95.00th=[ 239], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 239, max= 638, per=24.91%, avg=408.80, stdev=96.76, samples=49 iops : min= 59, max= 159, avg=101.80, stdev=24.29, samples=49 lat (msec) : 50=0.27%, 100=7.50%, 250=88.95%, 500=3.28% cpu : usr=0.12%, sys=1.21%, ctx=2143, 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=1642KiB/s (1681kB/s), 410KiB/s-413KiB/s (420kB/s-422kB/s), io=40.0MiB (41.9MB), run=24822-24952msec 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=180226: Mon Aug 17 08:03:02 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5048KiB/30388msec) slat (usec): min=2934, max=63493, avg=13373.30, stdev=7637.55 clat (msec): min=39, max=339, avg=179.55, stdev=45.17 lat (msec): min=46, max=348, avg=192.92, stdev=47.13 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 112], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 39, max= 287, per=25.12%, avg=165.02, stdev=41.11, samples=60 iops : min= 9, max= 71, avg=40.80, stdev=10.35, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5192KiB/30388msec); 0 zone resets slat (usec): min=38, max=13501, avg=284.81, stdev=816.74 clat (msec): min=77, max=344, avg=183.31, stdev=42.56 lat (msec): min=80, max=344, avg=183.60, stdev=42.57 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 255, per=24.85%, avg=170.00, stdev=43.05, samples=60 iops : min= 7, max= 63, avg=42.05, stdev=10.76, samples=60 lat (msec) : 50=0.04%, 100=1.02%, 250=92.42%, 500=6.52% cpu : usr=0.24%, sys=1.93%, ctx=4294, 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=180227: Mon Aug 17 08:03:02 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(4976KiB/30442msec) slat (usec): min=2459, max=79832, avg=13483.53, stdev=8032.34 clat (msec): min=35, max=341, avg=178.57, stdev=44.87 lat (msec): min=53, max=365, avg=192.06, stdev=47.11 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 280, per=24.57%, avg=161.42, stdev=48.14, samples=60 iops : min= 7, max= 70, avg=39.90, stdev=12.01, samples=60 write: IOPS=43, BW=173KiB/s (177kB/s)(5264KiB/30442msec); 0 zone resets slat (usec): min=43, max=14360, avg=271.60, stdev=748.89 clat (msec): min=42, max=325, avg=185.77, stdev=43.25 lat (msec): min=42, max=326, avg=186.04, stdev=43.25 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 117], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 259], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 85, max= 279, per=25.18%, avg=172.25, stdev=37.85, samples=60 iops : min= 21, max= 69, avg=42.62, stdev= 9.54, samples=60 lat (msec) : 50=0.12%, 100=1.02%, 250=91.48%, 500=7.38% cpu : usr=0.31%, sys=1.91%, ctx=4492, 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=180228: Mon Aug 17 08:03:02 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(4984KiB/30128msec) slat (usec): min=86, max=64918, avg=13406.91, stdev=7595.63 clat (msec): min=18, max=347, avg=180.69, stdev=46.60 lat (msec): min=19, max=374, avg=194.11, stdev=48.49 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 95, max= 263, per=25.17%, avg=165.36, stdev=37.96, samples=59 iops : min= 23, max= 65, avg=40.90, stdev= 9.50, samples=59 write: IOPS=43, BW=174KiB/s (179kB/s)(5256KiB/30128msec); 0 zone resets slat (usec): min=47, max=17453, avg=285.82, stdev=843.49 clat (msec): min=53, max=373, avg=182.08, stdev=42.81 lat (msec): min=53, max=374, avg=182.37, stdev=42.79 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 63, max= 256, per=25.42%, avg=173.85, stdev=47.34, samples=59 iops : min= 15, max= 64, avg=43.05, stdev=11.90, samples=59 lat (msec) : 20=0.08%, 50=0.08%, 100=1.29%, 250=91.99%, 500=6.56% cpu : usr=0.30%, sys=1.97%, ctx=4281, 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=180229: Mon Aug 17 08:03:02 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5060KiB/30505msec) slat (usec): min=127, max=64664, avg=13483.00, stdev=7708.98 clat (msec): min=16, max=356, avg=180.60, stdev=46.26 lat (msec): min=25, max=387, avg=194.09, stdev=48.30 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 39, max= 263, per=24.98%, avg=164.13, stdev=41.59, samples=60 iops : min= 9, max= 65, avg=40.60, stdev=10.46, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5180KiB/30505msec); 0 zone resets slat (usec): min=47, max=12662, avg=297.85, stdev=733.99 clat (msec): min=40, max=328, avg=184.39, stdev=43.28 lat (msec): min=41, max=328, avg=184.69, stdev=43.24 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 47, max= 278, per=24.53%, avg=167.80, stdev=41.27, samples=60 iops : min= 11, max= 69, avg=41.52, stdev=10.34, samples=60 lat (msec) : 20=0.04%, 50=0.27%, 100=1.56%, 250=90.86%, 500=7.27% cpu : usr=0.30%, sys=1.91%, ctx=4504, 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=658KiB/s (674kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=19.6MiB (20.5MB), run=30128-30505msec WRITE: bw=685KiB/s (701kB/s), 170KiB/s-174KiB/s (174kB/s-179kB/s), io=20.4MiB (21.4MB), run=30128-30505msec 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=180239: Mon Aug 17 08:03:12 2026 read: IOPS=2, BW=102MiB/s (106MB/s)(40.0MiB/394msec) slat (nsec): min=18639k, max=18639k, avg=18639083.00, stdev= 0.00 clat (nsec): min=358606k, max=358606k, avg=358605938.00, stdev= 0.00 lat (nsec): min=377250k, max=377250k, avg=377250099.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.31%, ctx=3, 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=102MiB/s (106MB/s), 102MiB/s-102MiB/s (106MB/s-106MB/s), io=40.0MiB (41.9MB), run=394-394msec 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