== sanity test 398c: run fio to test AIO ================= 12:11:06 (1788624666) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.511157 s, 82.1 MB/s osc.lustre-OST0000-osc-ffff92f91eb1d000.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=145445: Sat Sep 5 12:14:20 2026 write: IOPS=13, BW=55.2KiB/s (56.5kB/s)(10.0MiB/185613msec); 0 zone resets slat (usec): min=21, max=29717, avg=237.24, stdev=1154.18 clat (msec): min=290, max=2440, avg=1158.91, stdev=313.21 lat (msec): min=290, max=2440, avg=1159.15, stdev=313.22 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 659], 10.00th=[ 768], 20.00th=[ 902], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1418], 90.00th=[ 1569], 95.00th=[ 1687], | 99.00th=[ 1955], 99.50th=[ 2106], 99.90th=[ 2366], 99.95th=[ 2400], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 254, per=26.00%, avg=57.20, stdev=29.22, samples=352 iops : min= 1, max= 63, avg=13.84, stdev= 7.35, samples=352 lat (msec) : 500=1.25%, 750=7.89%, 1000=19.73%, 2000=70.35%, >=2000=0.78% cpu : usr=0.04%, sys=0.19%, ctx=1788, 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=145446: Sat Sep 5 12:14:20 2026 write: IOPS=13, BW=55.2KiB/s (56.6kB/s)(10.0MiB/185409msec); 0 zone resets slat (usec): min=22, max=17327, avg=191.88, stdev=824.65 clat (msec): min=144, max=2341, avg=1158.16, stdev=312.52 lat (msec): min=145, max=2341, avg=1158.36, stdev=312.51 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 667], 10.00th=[ 785], 20.00th=[ 902], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1687], | 99.00th=[ 1972], 99.50th=[ 2089], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 143, per=26.06%, avg=57.34, stdev=34.21, samples=351 iops : min= 1, max= 35, avg=13.87, stdev= 8.58, samples=351 lat (msec) : 250=0.16%, 500=1.76%, 750=6.76%, 1000=19.88%, 2000=70.74% lat (msec) : >=2000=0.70% cpu : usr=0.04%, sys=0.18%, ctx=1664, 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=145447: Sat Sep 5 12:14:20 2026 write: IOPS=13, BW=55.2KiB/s (56.5kB/s)(10.0MiB/185487msec); 0 zone resets slat (usec): min=21, max=21259, avg=184.68, stdev=833.36 clat (msec): min=290, max=2411, avg=1158.09, stdev=314.40 lat (msec): min=291, max=2412, avg=1158.28, stdev=314.42 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 659], 10.00th=[ 776], 20.00th=[ 902], | 30.00th=[ 995], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1385], 90.00th=[ 1536], 95.00th=[ 1687], | 99.00th=[ 2022], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 246, per=25.77%, avg=56.70, stdev=29.02, samples=355 iops : min= 1, max= 61, avg=13.71, stdev= 7.29, samples=355 lat (msec) : 500=1.33%, 750=7.70%, 1000=21.25%, 2000=68.48%, >=2000=1.25% cpu : usr=0.04%, sys=0.19%, ctx=1698, 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=145448: Sat Sep 5 12:14:20 2026 write: IOPS=13, BW=55.2KiB/s (56.5kB/s)(10.0MiB/185574msec); 0 zone resets slat (usec): min=22, max=15004, avg=173.08, stdev=738.08 clat (msec): min=386, max=2439, avg=1158.44, stdev=307.69 lat (msec): min=386, max=2440, avg=1158.62, stdev=307.70 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 659], 10.00th=[ 785], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1284], 80.00th=[ 1385], 90.00th=[ 1569], 95.00th=[ 1703], | 99.00th=[ 1905], 99.50th=[ 2072], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 254, per=26.30%, avg=57.86, stdev=30.84, samples=348 iops : min= 1, max= 63, avg=14.00, stdev= 7.74, samples=348 lat (msec) : 500=1.25%, 750=7.15%, 1000=20.55%, 2000=70.39%, >=2000=0.66% cpu : usr=0.04%, sys=0.18%, ctx=1613, 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=221KiB/s (226kB/s), 55.2KiB/s-55.2KiB/s (56.5kB/s-56.6kB/s), io=40.0MiB (41.9MB), run=185409-185613msec 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=145484: Sat Sep 5 12:16:16 2026 read: IOPS=11, BW=46.0KiB/s (48.1kB/s)(5048KiB/107433msec) slat (usec): min=2945, max=55717, avg=14278.36, stdev=7912.34 clat (msec): min=41, max=920, avg=410.49, stdev=105.56 lat (msec): min=55, max=943, avg=424.78, stdev=106.75 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 249], 10.00th=[ 284], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 489], 90.00th=[ 550], 95.00th=[ 592], | 99.00th=[ 693], 99.50th=[ 718], 99.90th=[ 835], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 127, per=25.22%, avg=46.90, stdev=21.44, samples=211 iops : min= 1, max= 31, avg=11.28, stdev= 5.41, samples=211 write: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5192KiB/107433msec); 0 zone resets slat (usec): min=24, max=16085, avg=307.56, stdev=1029.57 clat (msec): min=357, max=1977, avg=907.79, stdev=235.57 lat (msec): min=357, max=1977, avg=908.09, stdev=235.58 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 575], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1351], | 99.00th=[ 1536], 99.50th=[ 1687], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 6, max= 112, per=24.66%, avg=47.83, stdev=19.76, samples=213 iops : min= 1, max= 28, avg=11.51, stdev= 4.96, samples=213 lat (msec) : 50=0.04%, 100=0.08%, 250=2.42%, 500=39.18%, 750=20.08% lat (msec) : 1000=22.30%, 2000=15.90% cpu : usr=0.11%, sys=0.68%, ctx=4720, 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=145485: Sat Sep 5 12:16:16 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(4976KiB/107511msec) slat (msec): min=2, max=362, avg=14.63, stdev=12.45 clat (msec): min=35, max=831, avg=411.82, stdev=104.10 lat (msec): min=44, max=856, avg=426.46, stdev=104.73 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 259], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 493], 90.00th=[ 550], 95.00th=[ 592], | 99.00th=[ 667], 99.50th=[ 701], 99.90th=[ 793], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 6, max= 144, per=24.64%, avg=45.83, stdev=22.19, samples=212 iops : min= 1, max= 36, avg=11.01, stdev= 5.58, samples=212 write: IOPS=12, BW=48.0KiB/s (50.1kB/s)(5264KiB/107511msec); 0 zone resets slat (usec): min=25, max=28121, avg=261.07, stdev=975.66 clat (msec): min=250, max=1941, avg=901.26, stdev=241.86 lat (msec): min=250, max=1941, avg=901.53, stdev=241.81 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 558], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1334], | 99.00th=[ 1586], 99.50th=[ 1737], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 104, per=24.89%, avg=48.30, stdev=19.93, samples=213 iops : min= 1, max= 26, avg=11.63, stdev= 5.03, samples=213 lat (msec) : 50=0.12%, 100=0.23%, 250=1.64%, 500=39.22%, 750=21.45% lat (msec) : 1000=21.76%, 2000=15.59% cpu : usr=0.10%, sys=0.62%, ctx=4761, 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=145486: Sat Sep 5 12:16:16 2026 read: IOPS=11, BW=46.5KiB/s (47.6kB/s)(4984KiB/107129msec) slat (usec): min=36, max=56625, avg=14109.58, stdev=8168.99 clat (msec): min=21, max=1395, avg=407.69, stdev=113.67 lat (msec): min=30, max=1410, avg=421.81, stdev=114.99 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 255], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 693], 99.50th=[ 776], 99.90th=[ 1167], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 133, per=25.05%, avg=46.60, stdev=22.64, samples=210 iops : min= 1, max= 33, avg=11.20, stdev= 5.73, samples=210 write: IOPS=12, BW=49.1KiB/s (50.2kB/s)(5256KiB/107129msec); 0 zone resets slat (usec): min=25, max=24669, avg=327.68, stdev=1267.71 clat (msec): min=262, max=1919, avg=903.14, stdev=242.56 lat (msec): min=262, max=1919, avg=903.47, stdev=242.54 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 760], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1569], 99.50th=[ 1653], 99.90th=[ 1905], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 15, max= 104, per=25.14%, avg=48.76, stdev=17.63, samples=211 iops : min= 3, max= 26, avg=11.74, stdev= 4.43, samples=211 lat (msec) : 50=0.12%, 100=0.35%, 250=1.76%, 500=39.80%, 750=20.08% lat (msec) : 1000=22.19%, 2000=15.70% cpu : usr=0.11%, sys=0.71%, ctx=5072, 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=145487: Sat Sep 5 12:16:16 2026 read: IOPS=11, BW=47.4KiB/s (48.6kB/s)(5060KiB/106665msec) slat (usec): min=3056, max=57149, avg=13952.26, stdev=7738.65 clat (msec): min=29, max=897, avg=407.67, stdev=108.83 lat (msec): min=37, max=916, avg=421.63, stdev=110.18 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 247], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 376], 50.00th=[ 409], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 493], 90.00th=[ 550], 95.00th=[ 584], | 99.00th=[ 684], 99.50th=[ 718], 99.90th=[ 785], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 152, per=25.47%, avg=47.38, stdev=19.64, samples=210 iops : min= 1, max= 38, avg=11.39, stdev= 4.99, samples=210 write: IOPS=12, BW=48.6KiB/s (49.7kB/s)(5180KiB/106665msec); 0 zone resets slat (usec): min=26, max=14434, avg=285.72, stdev=888.06 clat (msec): min=281, max=1944, avg=903.39, stdev=250.82 lat (msec): min=281, max=1944, avg=903.67, stdev=250.77 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 558], 10.00th=[ 625], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1368], | 99.00th=[ 1636], 99.50th=[ 1821], 99.90th=[ 1888], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 95, per=24.87%, avg=48.25, stdev=18.67, samples=210 iops : min= 1, max= 23, avg=11.61, stdev= 4.67, samples=210 lat (msec) : 50=0.08%, 100=0.39%, 250=2.34%, 500=38.67%, 750=22.07% lat (msec) : 1000=20.90%, 2000=15.55% cpu : usr=0.09%, sys=0.67%, ctx=4602, 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=187KiB/s (191kB/s), 46.3KiB/s-47.4KiB/s (47.4kB/s-48.6kB/s), io=19.6MiB (20.5MB), run=106665-107511msec WRITE: bw=194KiB/s (199kB/s), 48.3KiB/s-49.1KiB/s (49.5kB/s-50.2kB/s), io=20.4MiB (21.4MB), run=106665-107511msec 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=145507: Sat Sep 5 12:16:27 2026 read: IOPS=1, BW=78.4MiB/s (82.2MB/s)(40.0MiB/510msec) slat (nsec): min=22710k, max=22710k, avg=22709922.00, stdev= 0.00 clat (nsec): min=476804k, max=476804k, avg=476803606.00, stdev= 0.00 lat (nsec): min=499519k, max=499519k, avg=499519015.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.55%, ctx=23, 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=78.4MiB/s (82.2MB/s), 78.4MiB/s-78.4MiB/s (82.2MB/s-82.2MB/s), io=40.0MiB (41.9MB), run=510-510msec 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