== sanity test 398c: run fio to test AIO ================= 17:16:00 (1788642960) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.542625 s, 77.3 MB/s osc.lustre-OST0000-osc-ffff898dc6307000.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=180206: Sat Sep 5 17:16:41 2026 write: IOPS=89, BW=356KiB/s (365kB/s)(10.0MiB/28726msec); 0 zone resets slat (usec): min=28, max=14056, avg=225.84, stdev=755.31 clat (msec): min=49, max=307, avg=178.54, stdev=40.23 lat (msec): min=49, max=308, avg=178.77, stdev=40.22 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 223, max= 504, per=24.95%, avg=355.58, stdev=74.43, samples=57 iops : min= 55, max= 126, avg=88.58, stdev=18.60, samples=57 lat (msec) : 50=0.04%, 100=1.33%, 250=92.93%, 500=5.70% cpu : usr=0.19%, sys=1.02%, ctx=2567, 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=180207: Sat Sep 5 17:16:41 2026 write: IOPS=89, BW=356KiB/s (365kB/s)(10.0MiB/28737msec); 0 zone resets slat (usec): min=28, max=21285, avg=256.28, stdev=933.21 clat (msec): min=27, max=301, avg=178.44, stdev=40.50 lat (msec): min=27, max=301, avg=178.70, stdev=40.48 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 239, max= 512, per=24.95%, avg=355.56, stdev=64.79, samples=57 iops : min= 59, max= 128, avg=88.56, stdev=16.18, samples=57 lat (msec) : 50=0.04%, 100=1.60%, 250=93.24%, 500=5.12% cpu : usr=0.18%, sys=0.99%, ctx=2808, 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=180208: Sat Sep 5 17:16:41 2026 write: IOPS=89, BW=357KiB/s (366kB/s)(10.0MiB/28644msec); 0 zone resets slat (usec): min=29, max=20915, avg=232.21, stdev=835.97 clat (msec): min=32, max=300, avg=178.57, stdev=41.08 lat (msec): min=32, max=300, avg=178.80, stdev=41.04 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 114], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 250, max= 512, per=25.02%, avg=356.50, stdev=69.01, samples=56 iops : min= 62, max= 128, avg=88.80, stdev=17.25, samples=56 lat (msec) : 50=0.08%, 100=2.03%, 250=92.34%, 500=5.55% cpu : usr=0.18%, sys=0.91%, ctx=2603, 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=180209: Sat Sep 5 17:16:41 2026 write: IOPS=89, BW=356KiB/s (365kB/s)(10.0MiB/28733msec); 0 zone resets slat (usec): min=28, max=14863, avg=253.56, stdev=889.91 clat (msec): min=31, max=303, avg=179.07, stdev=40.51 lat (msec): min=31, max=303, avg=179.32, stdev=40.48 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 118], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 305] bw ( KiB/s): min= 250, max= 508, per=24.94%, avg=355.42, stdev=62.95, samples=57 iops : min= 62, max= 127, avg=88.54, stdev=15.71, samples=57 lat (msec) : 50=0.20%, 100=1.13%, 250=93.32%, 500=5.35% cpu : usr=0.18%, sys=0.97%, ctx=2617, 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=1425KiB/s (1460kB/s), 356KiB/s-357KiB/s (365kB/s-366kB/s), io=40.0MiB (41.9MB), run=28644-28737msec 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=180224: Sat Sep 5 17:17:19 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(5048KiB/29981msec) slat (usec): min=2777, max=58783, avg=12910.80, stdev=6997.07 clat (msec): min=20, max=351, avg=175.78, stdev=41.43 lat (msec): min=31, max=379, avg=188.70, stdev=43.05 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 117], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 52, max= 255, per=24.96%, avg=166.95, stdev=39.66, samples=59 iops : min= 13, max= 63, avg=41.24, stdev= 9.91, samples=59 write: IOPS=43, BW=173KiB/s (177kB/s)(5192KiB/29981msec); 0 zone resets slat (usec): min=29, max=12364, avg=249.95, stdev=682.40 clat (msec): min=32, max=328, avg=182.27, stdev=39.28 lat (msec): min=33, max=328, avg=182.52, stdev=39.27 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 44, max= 246, per=24.80%, avg=172.61, stdev=35.34, samples=59 iops : min= 11, max= 61, avg=42.68, stdev= 8.82, samples=59 lat (msec) : 50=0.20%, 100=0.70%, 250=94.30%, 500=4.80% cpu : usr=0.22%, sys=1.83%, ctx=4548, 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=180225: Sat Sep 5 17:17:19 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(4976KiB/29867msec) slat (usec): min=2430, max=60697, avg=12908.50, stdev=7243.47 clat (msec): min=56, max=374, avg=176.60, stdev=41.65 lat (msec): min=82, max=398, avg=189.52, stdev=43.35 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 116], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 44, max= 261, per=24.83%, avg=166.12, stdev=38.14, samples=59 iops : min= 11, max= 65, avg=41.03, stdev= 9.54, samples=59 write: IOPS=44, BW=176KiB/s (180kB/s)(5264KiB/29867msec); 0 zone resets slat (usec): min=29, max=26821, avg=294.87, stdev=1173.57 clat (msec): min=95, max=415, avg=180.96, stdev=40.15 lat (msec): min=95, max=415, avg=181.25, stdev=40.13 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 247], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 380], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 103, max= 295, per=25.36%, avg=176.49, stdev=41.66, samples=59 iops : min= 25, max= 73, avg=43.64, stdev=10.40, samples=59 lat (msec) : 100=0.78%, 250=94.57%, 500=4.65% cpu : usr=0.24%, sys=1.81%, ctx=4702, 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=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=180226: Sat Sep 5 17:17:19 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(4984KiB/29637msec) slat (usec): min=53, max=50796, avg=12781.19, stdev=6694.29 clat (msec): min=29, max=350, avg=176.05, stdev=43.47 lat (msec): min=29, max=379, avg=188.84, stdev=45.06 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 247], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 95, max= 255, per=25.19%, avg=168.52, stdev=40.92, samples=58 iops : min= 23, max= 63, avg=41.62, stdev=10.21, samples=58 write: IOPS=44, BW=177KiB/s (182kB/s)(5256KiB/29637msec); 0 zone resets slat (usec): min=28, max=21489, avg=235.18, stdev=855.91 clat (msec): min=77, max=368, avg=181.06, stdev=39.94 lat (msec): min=77, max=369, avg=181.30, stdev=39.93 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 313], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 102, max= 246, per=25.43%, avg=177.02, stdev=37.33, samples=58 iops : min= 25, max= 61, avg=43.76, stdev= 9.40, samples=58 lat (msec) : 50=0.16%, 100=0.78%, 250=94.49%, 500=4.57% cpu : usr=0.25%, sys=1.62%, ctx=4241, 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=180227: Sat Sep 5 17:17:19 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(5060KiB/29929msec) slat (usec): min=2764, max=62564, avg=12808.47, stdev=6890.56 clat (msec): min=31, max=361, avg=177.97, stdev=41.34 lat (msec): min=37, max=392, avg=190.78, stdev=42.84 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 60, max= 280, per=25.30%, avg=169.25, stdev=41.43, samples=59 iops : min= 15, max= 70, avg=41.81, stdev=10.34, samples=59 write: IOPS=43, BW=173KiB/s (177kB/s)(5180KiB/29929msec); 0 zone resets slat (usec): min=32, max=7766, avg=243.15, stdev=601.56 clat (msec): min=73, max=360, avg=180.48, stdev=38.24 lat (msec): min=74, max=361, avg=180.73, stdev=38.20 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 127], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 87, max= 264, per=24.76%, avg=172.31, stdev=39.60, samples=59 iops : min= 21, max= 66, avg=42.58, stdev= 9.96, samples=59 lat (msec) : 50=0.04%, 100=0.59%, 250=94.49%, 500=4.88% cpu : usr=0.28%, sys=1.81%, ctx=4438, 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=669KiB/s (685kB/s), 167KiB/s-169KiB/s (171kB/s-173kB/s), io=19.6MiB (20.5MB), run=29637-29981msec WRITE: bw=697KiB/s (714kB/s), 173KiB/s-177KiB/s (177kB/s-182kB/s), io=20.4MiB (21.4MB), run=29637-29981msec 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=180235: Sat Sep 5 17:17:28 2026 read: IOPS=3, BW=136MiB/s (143MB/s)(40.0MiB/294msec) slat (nsec): min=22023k, max=22023k, avg=22022702.00, stdev= 0.00 clat (nsec): min=254722k, max=254722k, avg=254721601.00, stdev= 0.00 lat (nsec): min=276748k, max=276748k, avg=276748344.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 255], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.44%, ctx=7, 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=136MiB/s (143MB/s), 136MiB/s-136MiB/s (143MB/s-143MB/s), io=40.0MiB (41.9MB), run=294-294msec 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