== sanity test 398c: run fio to test AIO ================= 17:44:59 (1790718299) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.375251 s, 112 MB/s osc.lustre-OST0000-osc-ffff8f4c0c6cb800.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=180072: Tue Sep 29 17:45:36 2026 write: IOPS=93, BW=373KiB/s (382kB/s)(10.0MiB/27442msec); 0 zone resets slat (usec): min=30, max=10836, avg=217.35, stdev=731.28 clat (msec): min=20, max=302, avg=171.14, stdev=38.07 lat (msec): min=20, max=302, avg=171.36, stdev=38.05 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 262], 99.50th=[ 268], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 253, max= 569, per=25.02%, avg=372.04, stdev=68.19, samples=54 iops : min= 63, max= 142, avg=92.59, stdev=17.09, samples=54 lat (msec) : 50=0.08%, 100=1.95%, 250=95.12%, 500=2.85% cpu : usr=0.20%, sys=0.93%, ctx=2580, majf=0, minf=8 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=180073: Tue Sep 29 17:45:36 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27540msec); 0 zone resets slat (usec): min=28, max=9419, avg=216.75, stdev=661.47 clat (msec): min=11, max=327, avg=171.42, stdev=39.85 lat (msec): min=11, max=328, avg=171.64, stdev=39.85 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 117], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 296], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 253, max= 555, per=24.98%, avg=371.41, stdev=68.14, samples=54 iops : min= 63, max= 138, avg=92.44, stdev=17.09, samples=54 lat (msec) : 20=0.08%, 50=0.16%, 100=2.54%, 250=94.18%, 500=3.05% cpu : usr=0.17%, sys=1.13%, ctx=2879, 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=180074: Tue Sep 29 17:45:36 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27543msec); 0 zone resets slat (usec): min=22, max=14123, avg=189.61, stdev=578.52 clat (msec): min=28, max=293, avg=171.40, stdev=38.01 lat (msec): min=29, max=293, avg=171.59, stdev=38.03 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 253, max= 504, per=24.88%, avg=370.00, stdev=63.42, samples=54 iops : min= 63, max= 126, avg=92.09, stdev=15.95, samples=54 lat (msec) : 50=0.08%, 100=2.07%, 250=94.41%, 500=3.44% cpu : usr=0.18%, sys=0.96%, ctx=2569, 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=180075: Tue Sep 29 17:45:36 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27542msec); 0 zone resets slat (usec): min=28, max=18721, avg=180.38, stdev=616.22 clat (msec): min=15, max=287, avg=171.46, stdev=38.55 lat (msec): min=20, max=287, avg=171.64, stdev=38.55 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 113], 10.00th=[ 129], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 245], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 254, max= 559, per=24.90%, avg=370.22, stdev=70.77, samples=54 iops : min= 63, max= 139, avg=92.15, stdev=17.75, samples=54 lat (msec) : 20=0.04%, 50=0.66%, 100=1.56%, 250=95.23%, 500=2.50% cpu : usr=0.16%, sys=0.91%, ctx=2317, 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 Run status group 0 (all jobs): WRITE: bw=1487KiB/s (1523kB/s), 372KiB/s-373KiB/s (381kB/s-382kB/s), io=40.0MiB (41.9MB), run=27442-27543msec 20% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=180089: Tue Sep 29 17:46:17 2026 read: IOPS=37, BW=151KiB/s (154kB/s)(5048KiB/33463msec) slat (usec): min=2776, max=58131, avg=14162.45, stdev=7659.12 clat (msec): min=41, max=406, avg=196.89, stdev=45.22 lat (msec): min=47, max=416, avg=211.06, stdev=46.45 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 133], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 88, max= 231, per=25.18%, avg=150.59, stdev=32.46, samples=66 iops : min= 22, max= 57, avg=37.20, stdev= 8.06, samples=66 write: IOPS=38, BW=155KiB/s (159kB/s)(5192KiB/33463msec); 0 zone resets slat (usec): min=36, max=13401, avg=178.23, stdev=614.32 clat (msec): min=69, max=390, avg=204.56, stdev=42.53 lat (msec): min=69, max=390, avg=204.74, stdev=42.54 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 236], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 359], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 88, max= 216, per=24.87%, avg=154.92, stdev=32.59, samples=66 iops : min= 22, max= 54, avg=38.29, stdev= 8.24, samples=66 lat (msec) : 50=0.04%, 100=0.08%, 250=87.81%, 500=12.07% cpu : usr=0.25%, sys=1.84%, ctx=4648, 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=180090: Tue Sep 29 17:46:17 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(4976KiB/33323msec) slat (usec): min=146, max=60087, avg=14364.85, stdev=7902.39 clat (msec): min=55, max=419, avg=197.94, stdev=46.92 lat (msec): min=65, max=434, avg=212.31, stdev=48.32 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 405], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 271, per=24.80%, avg=148.30, stdev=36.91, samples=66 iops : min= 17, max= 67, avg=36.62, stdev= 9.24, samples=66 write: IOPS=39, BW=158KiB/s (162kB/s)(5264KiB/33323msec); 0 zone resets slat (usec): min=33, max=27567, avg=248.76, stdev=1234.25 clat (msec): min=53, max=359, avg=203.52, stdev=42.94 lat (msec): min=53, max=360, avg=203.77, stdev=42.91 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 182], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 56, max= 240, per=25.28%, avg=157.48, stdev=33.61, samples=66 iops : min= 14, max= 60, avg=38.92, stdev= 8.44, samples=66 lat (msec) : 100=0.78%, 250=86.60%, 500=12.62% cpu : usr=0.24%, sys=1.67%, ctx=4515, 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=180091: Tue Sep 29 17:46:17 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(4984KiB/33465msec) slat (usec): min=3350, max=67771, avg=14114.49, stdev=7914.33 clat (msec): min=79, max=396, avg=197.91, stdev=45.26 lat (msec): min=91, max=414, avg=212.04, stdev=46.84 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 338], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 72, max= 239, per=24.84%, avg=148.52, stdev=34.21, samples=66 iops : min= 18, max= 59, avg=36.68, stdev= 8.50, samples=66 write: IOPS=39, BW=157KiB/s (161kB/s)(5256KiB/33465msec); 0 zone resets slat (usec): min=30, max=14658, avg=210.71, stdev=743.58 clat (msec): min=92, max=396, avg=204.02, stdev=42.04 lat (msec): min=92, max=396, avg=204.23, stdev=42.05 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 342], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 71, max= 223, per=25.07%, avg=156.20, stdev=34.61, samples=66 iops : min= 17, max= 55, avg=38.59, stdev= 8.74, samples=66 lat (msec) : 100=0.12%, 250=87.66%, 500=12.23% cpu : usr=0.25%, sys=1.53%, ctx=4154, 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=180092: Tue Sep 29 17:46:17 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(5060KiB/33506msec) slat (msec): min=3, max=182, avg=14.23, stdev= 9.97 clat (msec): min=34, max=468, avg=196.70, stdev=48.03 lat (msec): min=42, max=476, avg=210.94, stdev=49.49 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 397], 99.90th=[ 435], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 79, max= 216, per=25.09%, avg=150.02, stdev=33.70, samples=66 iops : min= 19, max= 54, avg=37.05, stdev= 8.44, samples=66 write: IOPS=38, BW=155KiB/s (158kB/s)(5180KiB/33506msec); 0 zone resets slat (usec): min=30, max=9319, avg=194.25, stdev=600.24 clat (msec): min=59, max=455, avg=205.24, stdev=46.39 lat (msec): min=59, max=455, avg=205.43, stdev=46.39 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 296], | 99.00th=[ 359], 99.50th=[ 401], 99.90th=[ 439], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 64, max= 233, per=24.57%, avg=153.09, stdev=31.50, samples=66 iops : min= 16, max= 58, avg=37.83, stdev= 7.88, samples=66 lat (msec) : 50=0.12%, 100=0.35%, 250=88.20%, 500=11.33% cpu : usr=0.33%, sys=1.64%, ctx=4574, 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=599KiB/s (613kB/s), 149KiB/s-151KiB/s (153kB/s-155kB/s), io=19.6MiB (20.5MB), run=33323-33506msec WRITE: bw=624KiB/s (638kB/s), 155KiB/s-158KiB/s (158kB/s-162kB/s), io=20.4MiB (21.4MB), run=33323-33506msec 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=180101: Tue Sep 29 17:46:26 2026 read: IOPS=1, BW=77.1MiB/s (80.8MB/s)(40.0MiB/519msec) slat (nsec): min=66026k, max=66026k, avg=66025741.00, stdev= 0.00 clat (nsec): min=413136k, max=413136k, avg=413135552.00, stdev= 0.00 lat (nsec): min=479165k, max=479165k, avg=479165260.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.51%, ctx=5, 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=77.1MiB/s (80.8MB/s), 77.1MiB/s-77.1MiB/s (80.8MB/s-80.8MB/s), io=40.0MiB (41.9MB), run=519-519msec 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