== sanity test 398c: run fio to test AIO ================= 20:01:38 (1789689698) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.569069 s, 73.7 MB/s osc.lustre-OST0000-osc-ffff961fe0a93000.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=179959: Thu Sep 17 20:02:16 2026 write: IOPS=99, BW=397KiB/s (407kB/s)(10.0MiB/25791msec); 0 zone resets slat (usec): min=22, max=12209, avg=155.16, stdev=587.98 clat (msec): min=15, max=326, avg=159.74, stdev=42.67 lat (msec): min=15, max=326, avg=159.89, stdev=42.68 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 115], 10.00th=[ 120], 20.00th=[ 127], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 169], 80.00th=[ 192], 90.00th=[ 222], 95.00th=[ 247], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 111, max= 590, per=24.95%, avg=396.02, stdev=92.19, samples=51 iops : min= 27, max= 147, avg=98.61, stdev=23.04, samples=51 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=95.12%, 500=4.53% cpu : usr=0.18%, sys=0.85%, ctx=2175, 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=179960: Thu Sep 17 20:02:16 2026 write: IOPS=99, BW=397KiB/s (406kB/s)(10.0MiB/25798msec); 0 zone resets slat (usec): min=22, max=10119, avg=151.96, stdev=578.95 clat (msec): min=14, max=349, avg=159.64, stdev=42.71 lat (msec): min=14, max=349, avg=159.79, stdev=42.72 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 113], 10.00th=[ 120], 20.00th=[ 127], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 192], 90.00th=[ 218], 95.00th=[ 247], | 99.00th=[ 275], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 111, max= 534, per=24.95%, avg=395.92, stdev=91.56, samples=51 iops : min= 27, max= 133, avg=98.61, stdev=22.91, samples=51 lat (msec) : 20=0.04%, 50=0.12%, 100=0.66%, 250=94.26%, 500=4.92% cpu : usr=0.16%, sys=0.78%, ctx=2303, 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=179961: Thu Sep 17 20:02:16 2026 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25648msec); 0 zone resets slat (usec): min=29, max=22304, avg=178.86, stdev=822.79 clat (msec): min=16, max=393, avg=159.75, stdev=43.76 lat (msec): min=17, max=393, avg=159.94, stdev=43.82 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 114], 10.00th=[ 120], 20.00th=[ 127], | 30.00th=[ 134], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 188], 90.00th=[ 220], 95.00th=[ 251], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 376], | 99.99th=[ 393] bw ( KiB/s): min= 182, max= 598, per=25.17%, avg=399.42, stdev=87.89, samples=50 iops : min= 45, max= 149, avg=99.44, stdev=21.98, samples=50 lat (msec) : 20=0.04%, 50=0.27%, 100=0.70%, 250=93.83%, 500=5.16% cpu : usr=0.23%, sys=1.11%, ctx=2821, 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=179962: Thu Sep 17 20:02:16 2026 write: IOPS=99, BW=398KiB/s (407kB/s)(10.0MiB/25741msec); 0 zone resets slat (usec): min=29, max=19918, avg=171.16, stdev=774.49 clat (msec): min=28, max=326, avg=159.43, stdev=42.27 lat (msec): min=28, max=326, avg=159.61, stdev=42.31 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 115], 10.00th=[ 120], 20.00th=[ 127], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 190], 90.00th=[ 218], 95.00th=[ 245], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 110, max= 590, per=25.12%, avg=398.58, stdev=92.49, samples=50 iops : min= 27, max= 147, avg=99.26, stdev=23.13, samples=50 lat (msec) : 50=0.16%, 100=0.27%, 250=95.55%, 500=4.02% cpu : usr=0.22%, sys=0.89%, ctx=2677, 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=1588KiB/s (1626kB/s), 397KiB/s-399KiB/s (406kB/s-409kB/s), io=40.0MiB (41.9MB), run=25648-25798msec 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=179976: Thu Sep 17 20:02:59 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5048KiB/31784msec) slat (usec): min=3087, max=73029, avg=13579.23, stdev=7613.72 clat (msec): min=34, max=376, avg=187.81, stdev=39.38 lat (msec): min=54, max=389, avg=201.40, stdev=40.29 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 68, max= 248, per=25.07%, avg=157.68, stdev=32.10, samples=63 iops : min= 17, max= 62, avg=38.87, stdev= 8.05, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31784msec); 0 zone resets slat (usec): min=33, max=7680, avg=200.89, stdev=593.55 clat (msec): min=102, max=343, avg=192.67, stdev=37.96 lat (msec): min=102, max=343, avg=192.87, stdev=37.94 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 134], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 257], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 47, max= 263, per=24.83%, avg=162.67, stdev=41.06, samples=63 iops : min= 11, max= 65, avg=40.13, stdev=10.28, samples=63 lat (msec) : 50=0.08%, 100=0.23%, 250=93.83%, 500=5.86% cpu : usr=0.25%, sys=1.86%, ctx=4590, 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=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=179977: Thu Sep 17 20:02:59 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(4976KiB/31884msec) slat (usec): min=2665, max=58695, avg=14038.76, stdev=7611.02 clat (msec): min=23, max=351, avg=186.50, stdev=44.06 lat (msec): min=45, max=380, avg=200.55, stdev=45.21 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 60, max= 264, per=24.64%, avg=155.02, stdev=35.15, samples=63 iops : min= 15, max= 66, avg=38.22, stdev= 8.80, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5264KiB/31884msec); 0 zone resets slat (usec): min=29, max=14243, avg=206.58, stdev=696.47 clat (msec): min=42, max=349, avg=195.70, stdev=38.62 lat (msec): min=42, max=349, avg=195.91, stdev=38.61 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 96, max= 254, per=25.11%, avg=164.48, stdev=32.86, samples=63 iops : min= 24, max= 63, avg=40.57, stdev= 8.14, samples=63 lat (msec) : 50=0.16%, 100=0.47%, 250=91.88%, 500=7.50% cpu : usr=0.28%, sys=1.79%, ctx=4471, 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=179978: Thu Sep 17 20:02:59 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31654msec) slat (usec): min=54, max=69520, avg=13804.86, stdev=7604.66 clat (msec): min=22, max=385, avg=185.72, stdev=43.56 lat (msec): min=22, max=418, avg=199.53, stdev=44.96 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 122], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 372], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 279, per=24.99%, avg=157.16, stdev=39.20, samples=62 iops : min= 17, max= 69, avg=38.76, stdev= 9.80, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31654msec); 0 zone resets slat (usec): min=26, max=11878, avg=216.87, stdev=736.02 clat (msec): min=82, max=346, avg=195.49, stdev=39.99 lat (msec): min=83, max=346, avg=195.71, stdev=40.03 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 103, max= 239, per=25.21%, avg=165.10, stdev=32.75, samples=62 iops : min= 25, max= 59, avg=40.76, stdev= 8.19, samples=62 lat (msec) : 50=0.16%, 100=0.31%, 250=91.64%, 500=7.89% cpu : usr=0.25%, sys=1.88%, ctx=4238, 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=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=179979: Thu Sep 17 20:02:59 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5060KiB/31880msec) slat (usec): min=2711, max=59997, avg=13757.43, stdev=7228.03 clat (msec): min=19, max=416, avg=188.68, stdev=41.68 lat (msec): min=26, max=428, avg=202.44, stdev=42.73 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 126], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 384], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 53, max= 231, per=25.16%, avg=158.25, stdev=33.60, samples=63 iops : min= 13, max= 57, avg=39.02, stdev= 8.42, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5180KiB/31880msec); 0 zone resets slat (usec): min=23, max=13915, avg=187.66, stdev=630.53 clat (msec): min=41, max=351, avg=192.75, stdev=37.10 lat (msec): min=41, max=351, avg=192.93, stdev=37.09 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 255, per=24.72%, avg=161.90, stdev=35.66, samples=63 iops : min= 17, max= 63, avg=39.94, stdev= 8.90, samples=63 lat (msec) : 20=0.04%, 50=0.08%, 100=0.27%, 250=93.32%, 500=6.29% cpu : usr=0.24%, sys=1.80%, ctx=4370, 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=629KiB/s (645kB/s), 156KiB/s-159KiB/s (160kB/s-163kB/s), io=19.6MiB (20.5MB), run=31654-31884msec WRITE: bw=655KiB/s (671kB/s), 162KiB/s-166KiB/s (166kB/s-170kB/s), io=20.4MiB (21.4MB), run=31654-31884msec 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=179988: Thu Sep 17 20:03:11 2026 read: IOPS=1, BW=74.3MiB/s (77.0MB/s)(40.0MiB/538msec) slat (nsec): min=44760k, max=44760k, avg=44760165.00, stdev= 0.00 clat (nsec): min=475099k, max=475099k, avg=475099260.00, stdev= 0.00 lat (nsec): min=519867k, max=519867k, avg=519867158.00, 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=2.42%, ctx=6, 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=74.3MiB/s (77.0MB/s), 74.3MiB/s-74.3MiB/s (77.0MB/s-77.0MB/s), io=40.0MiB (41.9MB), run=538-538msec 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