== sanity test 398c: run fio to test AIO ================= 16:57:28 (1782248248) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.626756 s, 66.9 MB/s osc.lustre-OST0000-osc-ffff976b81e50800.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=180657: Tue Jun 23 16:58:15 2026 write: IOPS=76, BW=305KiB/s (312kB/s)(10.0MiB/33571msec); 0 zone resets slat (usec): min=43, max=22184, avg=433.49, stdev=1267.45 clat (msec): min=35, max=370, avg=208.06, stdev=54.86 lat (msec): min=35, max=371, avg=208.49, stdev=54.88 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 152, max= 512, per=24.87%, avg=303.45, stdev=75.82, samples=66 iops : min= 38, max= 128, avg=75.42, stdev=19.00, samples=66 lat (msec) : 50=0.08%, 100=1.91%, 250=78.05%, 500=19.96% cpu : usr=0.16%, sys=1.23%, ctx=2481, 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=180658: Tue Jun 23 16:58:15 2026 write: IOPS=76, BW=306KiB/s (313kB/s)(10.0MiB/33465msec); 0 zone resets slat (usec): min=49, max=29016, avg=523.83, stdev=1499.56 clat (msec): min=33, max=370, avg=207.85, stdev=56.33 lat (msec): min=33, max=370, avg=208.38, stdev=56.34 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 372] bw ( KiB/s): min= 151, max= 528, per=25.08%, avg=305.98, stdev=76.87, samples=66 iops : min= 37, max= 132, avg=76.06, stdev=19.29, samples=66 lat (msec) : 50=0.16%, 100=1.33%, 250=77.62%, 500=20.90% cpu : usr=0.21%, sys=1.47%, ctx=2927, 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=180659: Tue Jun 23 16:58:15 2026 write: IOPS=76, BW=308KiB/s (315kB/s)(10.0MiB/33285msec); 0 zone resets slat (usec): min=36, max=16919, avg=464.94, stdev=1283.94 clat (msec): min=50, max=406, avg=207.30, stdev=54.78 lat (msec): min=51, max=407, avg=207.78, stdev=54.82 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 161], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 409] bw ( KiB/s): min= 167, max= 528, per=25.10%, avg=306.27, stdev=73.41, samples=66 iops : min= 41, max= 132, avg=76.15, stdev=18.39, samples=66 lat (msec) : 100=1.95%, 250=79.53%, 500=18.52% cpu : usr=0.23%, sys=1.30%, ctx=2442, 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=180660: Tue Jun 23 16:58:15 2026 write: IOPS=76, BW=305KiB/s (313kB/s)(10.0MiB/33543msec); 0 zone resets slat (usec): min=51, max=35437, avg=566.82, stdev=1711.70 clat (msec): min=20, max=394, avg=207.92, stdev=55.12 lat (msec): min=20, max=394, avg=208.49, stdev=55.09 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 397] bw ( KiB/s): min= 184, max= 512, per=24.97%, avg=304.62, stdev=69.54, samples=66 iops : min= 46, max= 128, avg=75.71, stdev=17.46, samples=66 lat (msec) : 50=0.16%, 100=1.37%, 250=77.73%, 500=20.74% cpu : usr=0.20%, sys=1.44%, ctx=2902, 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=1220KiB/s (1249kB/s), 305KiB/s-308KiB/s (312kB/s-315kB/s), io=40.0MiB (41.9MB), run=33285-33571msec 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=180675: Tue Jun 23 16:59:03 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(5048KiB/38642msec) slat (usec): min=2976, max=58107, avg=17779.66, stdev=8938.32 clat (msec): min=112, max=380, avg=226.83, stdev=42.97 lat (msec): min=133, max=393, avg=244.62, stdev=44.31 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 161], 10.00th=[ 174], 20.00th=[ 190], | 30.00th=[ 203], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 236], | 70.00th=[ 249], 80.00th=[ 264], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 363], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 51, max= 231, per=25.08%, avg=130.16, stdev=30.40, samples=76 iops : min= 12, max= 57, avg=32.05, stdev= 7.62, samples=76 write: IOPS=33, BW=134KiB/s (138kB/s)(5192KiB/38642msec); 0 zone resets slat (usec): min=53, max=19967, avg=488.37, stdev=1414.79 clat (msec): min=125, max=388, avg=234.24, stdev=44.10 lat (msec): min=127, max=392, avg=234.73, stdev=44.05 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 243], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 44, max= 200, per=24.81%, avg=133.97, stdev=28.58, samples=76 iops : min= 11, max= 50, avg=33.01, stdev= 7.19, samples=76 lat (msec) : 250=68.32%, 500=31.68% cpu : usr=0.27%, sys=2.07%, ctx=4449, 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=180676: Tue Jun 23 16:59:03 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(4976KiB/38234msec) slat (usec): min=53, max=61726, avg=17628.72, stdev=9071.79 clat (msec): min=9, max=455, avg=228.06, stdev=47.80 lat (msec): min=11, max=472, avg=245.70, stdev=48.51 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 351], 99.50th=[ 393], 99.90th=[ 430], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 79, max= 190, per=24.99%, avg=129.69, stdev=26.99, samples=75 iops : min= 19, max= 47, avg=31.93, stdev= 6.70, samples=75 write: IOPS=34, BW=138KiB/s (141kB/s)(5264KiB/38234msec); 0 zone resets slat (usec): min=44, max=15869, avg=492.74, stdev=1155.66 clat (msec): min=55, max=437, avg=231.14, stdev=46.19 lat (msec): min=55, max=437, avg=231.64, stdev=46.12 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 163], 10.00th=[ 180], 20.00th=[ 192], | 30.00th=[ 205], 40.00th=[ 218], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 393], 99.90th=[ 409], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 79, max= 239, per=25.50%, avg=137.71, stdev=30.13, samples=75 iops : min= 19, max= 59, avg=33.96, stdev= 7.64, samples=75 lat (msec) : 10=0.04%, 100=0.20%, 250=68.28%, 500=31.48% cpu : usr=0.31%, sys=2.10%, ctx=4367, 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=180677: Tue Jun 23 16:59:03 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(4984KiB/38551msec) slat (usec): min=3524, max=63147, avg=17458.04, stdev=9098.47 clat (msec): min=36, max=458, avg=227.57, stdev=50.30 lat (msec): min=43, max=473, avg=245.04, stdev=51.28 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 159], 10.00th=[ 169], 20.00th=[ 186], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 426], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 51, max= 199, per=24.86%, avg=129.04, stdev=29.34, samples=76 iops : min= 12, max= 49, avg=31.76, stdev= 7.33, samples=76 write: IOPS=34, BW=136KiB/s (140kB/s)(5256KiB/38551msec); 0 zone resets slat (usec): min=59, max=18741, avg=515.56, stdev=1245.02 clat (msec): min=51, max=474, avg=233.02, stdev=44.87 lat (msec): min=51, max=475, avg=233.53, stdev=44.89 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 169], 10.00th=[ 180], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 447], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 55, max= 236, per=25.16%, avg=135.88, stdev=35.67, samples=76 iops : min= 13, max= 59, avg=33.50, stdev= 8.99, samples=76 lat (msec) : 50=0.04%, 100=0.12%, 250=68.05%, 500=31.80% cpu : usr=0.30%, sys=2.26%, ctx=4491, 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=180678: Tue Jun 23 16:59:03 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(5060KiB/38614msec) slat (usec): min=3480, max=63139, avg=17603.68, stdev=9132.95 clat (msec): min=103, max=389, avg=228.17, stdev=44.89 lat (msec): min=117, max=395, avg=245.78, stdev=45.70 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 161], 10.00th=[ 171], 20.00th=[ 188], | 30.00th=[ 203], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 239], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 79, max= 191, per=25.19%, avg=130.74, stdev=25.94, samples=76 iops : min= 19, max= 47, avg=32.22, stdev= 6.45, samples=76 write: IOPS=33, BW=134KiB/s (137kB/s)(5180KiB/38614msec); 0 zone resets slat (usec): min=55, max=15855, avg=516.05, stdev=1266.25 clat (msec): min=36, max=400, avg=233.98, stdev=46.28 lat (msec): min=37, max=400, avg=234.49, stdev=46.26 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 169], 10.00th=[ 180], 20.00th=[ 197], | 30.00th=[ 207], 40.00th=[ 218], 50.00th=[ 228], 60.00th=[ 241], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 388], 99.90th=[ 393], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 62, max= 224, per=24.67%, avg=133.20, stdev=30.92, samples=76 iops : min= 15, max= 56, avg=32.80, stdev= 7.84, samples=76 lat (msec) : 50=0.04%, 100=0.04%, 250=68.01%, 500=31.91% cpu : usr=0.24%, sys=2.17%, ctx=4530, 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=519KiB/s (532kB/s), 129KiB/s-131KiB/s (132kB/s-134kB/s), io=19.6MiB (20.5MB), run=38234-38642msec WRITE: bw=541KiB/s (554kB/s), 134KiB/s-138KiB/s (137kB/s-141kB/s), io=20.4MiB (21.4MB), run=38234-38642msec 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=180688: Tue Jun 23 16:59:14 2026 read: IOPS=1, BW=45.6MiB/s (47.8MB/s)(40.0MiB/878msec) slat (nsec): min=52082k, max=52082k, avg=52081995.00, stdev= 0.00 clat (nsec): min=790662k, max=790662k, avg=790661531.00, stdev= 0.00 lat (nsec): min=842749k, max=842749k, avg=842748588.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.37%, 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=45.6MiB/s (47.8MB/s), 45.6MiB/s-45.6MiB/s (47.8MB/s-47.8MB/s), io=40.0MiB (41.9MB), run=878-878msec 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