== sanity test 398c: run fio to test AIO ================= 05:19:24 (1788599964) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.445993 s, 94.0 MB/s osc.lustre-OST0000-osc-ffff88e60679e000.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=180048: Sat Sep 5 05:20:00 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25938msec); 0 zone resets slat (usec): min=22, max=19381, avg=200.68, stdev=787.89 clat (msec): min=22, max=308, avg=161.02, stdev=39.77 lat (msec): min=22, max=308, avg=161.22, stdev=39.78 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 218], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 309] bw ( KiB/s): min= 254, max= 542, per=24.86%, avg=392.59, stdev=78.97, samples=51 iops : min= 63, max= 135, avg=97.76, stdev=19.77, samples=51 lat (msec) : 50=0.08%, 100=4.53%, 250=92.19%, 500=3.20% cpu : usr=0.21%, sys=0.91%, ctx=2859, 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=180049: Sat Sep 5 05:20:00 2026 write: IOPS=98, BW=396KiB/s (405kB/s)(10.0MiB/25859msec); 0 zone resets slat (usec): min=21, max=17718, avg=175.63, stdev=703.68 clat (msec): min=60, max=321, avg=161.31, stdev=38.92 lat (msec): min=60, max=322, avg=161.49, stdev=38.93 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 190], 90.00th=[ 215], 95.00th=[ 236], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 321] bw ( KiB/s): min= 247, max= 638, per=25.01%, avg=394.96, stdev=90.48, samples=51 iops : min= 61, max= 159, avg=98.37, stdev=22.66, samples=51 lat (msec) : 100=4.41%, 250=93.16%, 500=2.42% cpu : usr=0.24%, sys=0.97%, ctx=2244, 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=180050: Sat Sep 5 05:20:00 2026 write: IOPS=98, BW=396KiB/s (405kB/s)(10.0MiB/25891msec); 0 zone resets slat (usec): min=22, max=13026, avg=189.87, stdev=684.32 clat (msec): min=21, max=299, avg=160.82, stdev=40.46 lat (msec): min=21, max=299, avg=161.01, stdev=40.45 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 103], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 566, per=25.03%, avg=395.20, stdev=79.18, samples=51 iops : min= 63, max= 141, avg=98.43, stdev=19.84, samples=51 lat (msec) : 50=0.16%, 100=4.41%, 250=91.95%, 500=3.48% cpu : usr=0.19%, sys=0.95%, ctx=2191, 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=180051: Sat Sep 5 05:20:00 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25923msec); 0 zone resets slat (usec): min=22, max=14024, avg=180.87, stdev=643.14 clat (msec): min=12, max=337, avg=161.01, stdev=39.97 lat (msec): min=13, max=338, avg=161.20, stdev=39.97 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 101], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 263, max= 532, per=24.98%, avg=394.41, stdev=74.20, samples=51 iops : min= 65, max= 133, avg=98.22, stdev=18.58, samples=51 lat (msec) : 20=0.04%, 50=0.08%, 100=4.80%, 250=91.48%, 500=3.59% cpu : usr=0.16%, sys=0.92%, ctx=2410, 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=1579KiB/s (1617kB/s), 395KiB/s-396KiB/s (404kB/s-405kB/s), io=40.0MiB (41.9MB), run=25859-25938msec 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=180065: Sat Sep 5 05:20:41 2026 read: IOPS=39, BW=160KiB/s (164kB/s)(5048KiB/31594msec) slat (usec): min=33, max=66759, avg=13969.93, stdev=8169.64 clat (msec): min=41, max=437, avg=187.82, stdev=49.49 lat (msec): min=49, max=504, avg=201.80, stdev=51.88 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 87, max= 232, per=25.29%, avg=159.58, stdev=35.45, samples=62 iops : min= 21, max= 58, avg=39.37, stdev= 8.92, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5192KiB/31594msec); 0 zone resets slat (usec): min=23, max=11406, avg=206.80, stdev=598.00 clat (msec): min=20, max=392, avg=192.32, stdev=48.02 lat (msec): min=20, max=392, avg=192.53, stdev=48.02 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 313], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 63, max= 253, per=25.05%, avg=164.56, stdev=35.85, samples=62 iops : min= 15, max= 63, avg=40.61, stdev= 8.95, samples=62 lat (msec) : 50=0.08%, 100=0.66%, 250=87.73%, 500=11.52% cpu : usr=0.25%, sys=1.76%, ctx=4100, 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=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=180066: Sat Sep 5 05:20:41 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(4976KiB/31798msec) slat (usec): min=38, max=151369, avg=13671.81, stdev=9013.08 clat (msec): min=34, max=418, avg=188.08, stdev=49.25 lat (msec): min=46, max=427, avg=201.76, stdev=51.44 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 384], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 87, max= 277, per=24.62%, avg=155.33, stdev=40.23, samples=63 iops : min= 21, max= 69, avg=38.32, stdev=10.06, samples=63 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31798msec); 0 zone resets slat (usec): min=25, max=25280, avg=225.81, stdev=905.10 clat (msec): min=96, max=363, avg=193.71, stdev=47.80 lat (msec): min=99, max=363, avg=193.93, stdev=47.78 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 95, max= 252, per=25.15%, avg=165.24, stdev=34.62, samples=63 iops : min= 23, max= 63, avg=40.81, stdev= 8.71, samples=63 lat (msec) : 50=0.04%, 100=0.51%, 250=87.46%, 500=11.99% cpu : usr=0.25%, sys=1.70%, ctx=4205, majf=0, minf=15 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=180067: Sat Sep 5 05:20:41 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31714msec) slat (usec): min=2765, max=66397, avg=14023.13, stdev=8209.06 clat (msec): min=33, max=446, avg=187.66, stdev=48.22 lat (msec): min=43, max=457, avg=201.69, stdev=50.33 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 384], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 67, max= 223, per=24.81%, avg=156.57, stdev=34.68, samples=63 iops : min= 16, max= 55, avg=38.62, stdev= 8.65, samples=63 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31714msec); 0 zone resets slat (usec): min=24, max=16749, avg=235.02, stdev=746.78 clat (msec): min=93, max=385, avg=191.72, stdev=47.29 lat (msec): min=93, max=385, avg=191.96, stdev=47.27 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 74, max= 261, per=24.99%, avg=164.21, stdev=42.67, samples=63 iops : min= 18, max= 65, avg=40.54, stdev=10.75, samples=63 lat (msec) : 50=0.04%, 100=0.59%, 250=88.01%, 500=11.37% cpu : usr=0.27%, sys=1.79%, ctx=4029, 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=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=180068: Sat Sep 5 05:20:41 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5060KiB/31797msec) slat (usec): min=2396, max=93073, avg=13988.32, stdev=8233.84 clat (msec): min=42, max=456, avg=188.12, stdev=48.41 lat (msec): min=77, max=468, avg=202.11, stdev=50.52 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 338], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 52, max= 247, per=25.08%, avg=158.27, stdev=35.65, samples=63 iops : min= 13, max= 61, avg=39.06, stdev= 8.88, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5180KiB/31797msec); 0 zone resets slat (usec): min=24, max=15008, avg=240.31, stdev=858.47 clat (msec): min=77, max=379, avg=192.07, stdev=46.98 lat (msec): min=77, max=379, avg=192.32, stdev=46.99 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 67, max= 256, per=24.63%, avg=161.81, stdev=39.63, samples=63 iops : min= 16, max= 64, avg=39.94, stdev= 9.95, samples=63 lat (msec) : 50=0.04%, 100=0.47%, 250=89.02%, 500=10.47% cpu : usr=0.25%, sys=1.79%, ctx=4333, majf=0, minf=15 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=631KiB/s (646kB/s), 156KiB/s-160KiB/s (160kB/s-164kB/s), io=19.6MiB (20.5MB), run=31594-31798msec WRITE: bw=657KiB/s (673kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31594-31798msec 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=180077: Sat Sep 5 05:20:53 2026 read: IOPS=1, BW=63.6MiB/s (66.7MB/s)(40.0MiB/629msec) slat (nsec): min=51166k, max=51166k, avg=51166433.00, stdev= 0.00 clat (nsec): min=545800k, max=545800k, avg=545800232.00, stdev= 0.00 lat (nsec): min=596971k, max=596971k, avg=596971350.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=0.96%, ctx=7, majf=0, minf=7 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=63.6MiB/s (66.7MB/s), 63.6MiB/s-63.6MiB/s (66.7MB/s-66.7MB/s), io=40.0MiB (41.9MB), run=629-629msec 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