== sanity test 398c: run fio to test AIO ================= 21:46:14 (1786067174) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.615323 s, 68.2 MB/s osc.lustre-OST0000-osc-ffff936d0b025000.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=178224: Thu Aug 6 21:46:57 2026 write: IOPS=75, BW=303KiB/s (311kB/s)(10.0MiB/33756msec); 0 zone resets slat (usec): min=51, max=12119, avg=431.23, stdev=838.25 clat (msec): min=43, max=425, avg=209.09, stdev=46.24 lat (msec): min=43, max=426, avg=209.52, stdev=46.27 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 407, per=24.92%, avg=302.28, stdev=64.27, samples=67 iops : min= 1, max= 101, avg=75.21, stdev=16.12, samples=67 lat (msec) : 50=0.04%, 100=0.04%, 250=85.55%, 500=14.38% cpu : usr=0.14%, sys=1.36%, ctx=2778, 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=178225: Thu Aug 6 21:46:57 2026 write: IOPS=76, BW=305KiB/s (312kB/s)(10.0MiB/33567msec); 0 zone resets slat (usec): min=51, max=14901, avg=524.22, stdev=1029.42 clat (msec): min=23, max=432, avg=208.90, stdev=45.89 lat (msec): min=26, max=432, avg=209.43, stdev=45.94 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 355], 99.50th=[ 414], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 144, max= 407, per=25.09%, avg=304.33, stdev=53.92, samples=66 iops : min= 36, max= 101, avg=75.73, stdev=13.50, samples=66 lat (msec) : 50=0.16%, 100=0.08%, 250=84.38%, 500=15.39% cpu : usr=0.24%, sys=1.69%, ctx=3141, 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=178226: Thu Aug 6 21:46:57 2026 write: IOPS=76, BW=304KiB/s (312kB/s)(10.0MiB/33658msec); 0 zone resets slat (usec): min=48, max=16325, avg=415.43, stdev=953.77 clat (msec): min=30, max=395, avg=208.99, stdev=43.94 lat (msec): min=31, max=395, avg=209.41, stdev=43.93 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 262], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 124, max= 399, per=24.99%, avg=303.14, stdev=64.18, samples=66 iops : min= 31, max= 99, avg=75.45, stdev=16.14, samples=66 lat (msec) : 50=0.04%, 250=83.71%, 500=16.25% cpu : usr=0.16%, sys=1.21%, ctx=2274, 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=178227: Thu Aug 6 21:46:57 2026 write: IOPS=75, BW=303KiB/s (311kB/s)(10.0MiB/33755msec); 0 zone resets slat (usec): min=50, max=16492, avg=391.95, stdev=870.93 clat (msec): min=32, max=393, avg=208.89, stdev=46.55 lat (msec): min=33, max=393, avg=209.28, stdev=46.55 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 393] bw ( KiB/s): min= 127, max= 470, per=25.21%, avg=305.79, stdev=61.63, samples=66 iops : min= 31, max= 117, avg=76.09, stdev=15.44, samples=66 lat (msec) : 50=0.04%, 100=0.31%, 250=83.12%, 500=16.52% cpu : usr=0.15%, sys=1.13%, ctx=1909, 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=1213KiB/s (1243kB/s), 303KiB/s-305KiB/s (311kB/s-312kB/s), io=40.0MiB (41.9MB), run=33567-33756msec 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=178243: Thu Aug 6 21:47:47 2026 read: IOPS=29, BW=117KiB/s (120kB/s)(5048KiB/43095msec) slat (usec): min=3047, max=86719, avg=18235.34, stdev=8540.05 clat (msec): min=35, max=500, avg=253.30, stdev=60.72 lat (msec): min=78, max=538, avg=271.55, stdev=63.03 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 165], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 236], 50.00th=[ 249], 60.00th=[ 264], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 426], 99.50th=[ 460], 99.90th=[ 489], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 48, max= 191, per=24.99%, avg=116.19, stdev=31.74, samples=85 iops : min= 12, max= 47, avg=28.55, stdev= 7.98, samples=85 write: IOPS=30, BW=120KiB/s (123kB/s)(5192KiB/43095msec); 0 zone resets slat (usec): min=56, max=11809, avg=475.62, stdev=1005.42 clat (msec): min=114, max=460, avg=263.25, stdev=56.34 lat (msec): min=114, max=460, avg=263.73, stdev=56.35 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 171], 10.00th=[ 190], 20.00th=[ 220], | 30.00th=[ 232], 40.00th=[ 247], 50.00th=[ 259], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 309], 90.00th=[ 338], 95.00th=[ 359], | 99.00th=[ 401], 99.50th=[ 414], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 41, max= 183, per=24.74%, avg=119.74, stdev=31.51, samples=85 iops : min= 10, max= 45, avg=29.46, stdev= 7.87, samples=85 lat (msec) : 50=0.04%, 100=0.04%, 250=45.82%, 500=54.06%, 750=0.04% cpu : usr=0.20%, sys=1.92%, ctx=4788, 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=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=178244: Thu Aug 6 21:47:47 2026 read: IOPS=29, BW=116KiB/s (119kB/s)(4976KiB/42715msec) slat (usec): min=65, max=80412, avg=18368.14, stdev=8947.13 clat (msec): min=100, max=507, avg=255.24, stdev=59.75 lat (msec): min=105, max=534, avg=273.62, stdev=61.94 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 167], 10.00th=[ 182], 20.00th=[ 205], | 30.00th=[ 222], 40.00th=[ 241], 50.00th=[ 253], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 300], 90.00th=[ 334], 95.00th=[ 363], | 99.00th=[ 422], 99.50th=[ 439], 99.90th=[ 472], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 32, max= 231, per=24.89%, avg=115.73, stdev=31.49, samples=84 iops : min= 8, max= 57, avg=28.46, stdev= 7.91, samples=84 write: IOPS=30, BW=123KiB/s (126kB/s)(5264KiB/42715msec); 0 zone resets slat (usec): min=52, max=13264, avg=511.16, stdev=1065.82 clat (msec): min=103, max=455, avg=259.64, stdev=57.44 lat (msec): min=103, max=455, avg=260.16, stdev=57.52 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 174], 10.00th=[ 190], 20.00th=[ 211], | 30.00th=[ 226], 40.00th=[ 245], 50.00th=[ 257], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 309], 90.00th=[ 338], 95.00th=[ 363], | 99.00th=[ 405], 99.50th=[ 414], 99.90th=[ 435], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 47, max= 200, per=25.36%, avg=122.74, stdev=30.10, samples=84 iops : min= 11, max= 50, avg=30.19, stdev= 7.57, samples=84 lat (msec) : 250=46.88%, 500=53.09%, 750=0.04% cpu : usr=0.22%, sys=2.05%, ctx=4798, 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=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=178245: Thu Aug 6 21:47:47 2026 read: IOPS=28, BW=116KiB/s (118kB/s)(4984KiB/43074msec) slat (usec): min=3185, max=64376, avg=18510.57, stdev=8641.70 clat (msec): min=104, max=450, avg=256.88, stdev=59.71 lat (msec): min=113, max=486, avg=275.40, stdev=61.97 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 169], 10.00th=[ 184], 20.00th=[ 205], | 30.00th=[ 224], 40.00th=[ 239], 50.00th=[ 253], 60.00th=[ 268], | 70.00th=[ 284], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 368], | 99.00th=[ 405], 99.50th=[ 422], 99.90th=[ 447], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 47, max= 207, per=24.81%, avg=115.35, stdev=29.58, samples=85 iops : min= 11, max= 51, avg=28.35, stdev= 7.38, samples=85 write: IOPS=30, BW=122KiB/s (125kB/s)(5256KiB/43074msec); 0 zone resets slat (usec): min=52, max=18355, avg=495.68, stdev=1030.77 clat (msec): min=114, max=445, avg=260.24, stdev=55.94 lat (msec): min=115, max=446, avg=260.74, stdev=55.97 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 174], 10.00th=[ 190], 20.00th=[ 215], | 30.00th=[ 230], 40.00th=[ 245], 50.00th=[ 259], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 305], 90.00th=[ 334], 95.00th=[ 363], | 99.00th=[ 397], 99.50th=[ 418], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 47, max= 200, per=25.03%, avg=121.16, stdev=32.56, samples=85 iops : min= 11, max= 50, avg=29.81, stdev= 8.17, samples=85 lat (msec) : 250=46.05%, 500=53.95% cpu : usr=0.20%, sys=1.95%, ctx=4616, 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=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=178246: Thu Aug 6 21:47:47 2026 read: IOPS=29, BW=118KiB/s (120kB/s)(5060KiB/43043msec) slat (usec): min=3380, max=77107, avg=18168.61, stdev=8538.24 clat (msec): min=91, max=453, avg=254.12, stdev=58.64 lat (msec): min=97, max=474, avg=272.30, stdev=60.75 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 169], 10.00th=[ 184], 20.00th=[ 203], | 30.00th=[ 222], 40.00th=[ 234], 50.00th=[ 249], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 305], 90.00th=[ 334], 95.00th=[ 363], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 451], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 42, max= 191, per=25.19%, avg=117.12, stdev=31.10, samples=85 iops : min= 10, max= 47, avg=28.79, stdev= 7.79, samples=85 write: IOPS=30, BW=120KiB/s (123kB/s)(5180KiB/43043msec); 0 zone resets slat (usec): min=53, max=20321, avg=513.85, stdev=1185.03 clat (msec): min=41, max=445, avg=262.25, stdev=56.37 lat (msec): min=42, max=446, avg=262.76, stdev=56.45 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 178], 10.00th=[ 194], 20.00th=[ 213], | 30.00th=[ 232], 40.00th=[ 245], 50.00th=[ 259], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 309], 90.00th=[ 338], 95.00th=[ 363], | 99.00th=[ 401], 99.50th=[ 422], 99.90th=[ 439], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 47, max= 215, per=24.77%, avg=119.87, stdev=30.18, samples=85 iops : min= 11, max= 53, avg=29.48, stdev= 7.59, samples=85 lat (msec) : 50=0.04%, 100=0.08%, 250=47.38%, 500=52.50% cpu : usr=0.22%, sys=1.85%, ctx=4721, 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=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=466KiB/s (477kB/s), 116KiB/s-118KiB/s (118kB/s-120kB/s), io=19.6MiB (20.5MB), run=42715-43095msec WRITE: bw=485KiB/s (496kB/s), 120KiB/s-123KiB/s (123kB/s-126kB/s), io=20.4MiB (21.4MB), run=42715-43095msec 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=178256: Thu Aug 6 21:47:56 2026 read: IOPS=1, BW=70.4MiB/s (73.8MB/s)(40.0MiB/568msec) slat (nsec): min=18936k, max=18936k, avg=18936291.00, stdev= 0.00 clat (nsec): min=520520k, max=520520k, avg=520519781.00, stdev= 0.00 lat (nsec): min=539460k, max=539460k, avg=539460306.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.29%, ctx=3, 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=70.4MiB/s (73.8MB/s), 70.4MiB/s-70.4MiB/s (73.8MB/s-73.8MB/s), io=40.0MiB (41.9MB), run=568-568msec 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