== sanity test 398c: run fio to test AIO ================= 01:44:40 (1790747080) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.539507 s, 77.7 MB/s osc.lustre-OST0000-osc-ffff8ed979fee000.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=180988: Wed Sep 30 01:45:17 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27546msec); 0 zone resets slat (usec): min=22, max=8955, avg=150.32, stdev=510.22 clat (msec): min=26, max=304, avg=171.30, stdev=35.26 lat (msec): min=26, max=304, avg=171.45, stdev=35.25 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 122], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 253], 99.50th=[ 259], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 250, max= 538, per=24.95%, avg=370.81, stdev=64.70, samples=54 iops : min= 62, max= 134, avg=92.35, stdev=16.25, samples=54 lat (msec) : 50=0.16%, 100=0.86%, 250=97.73%, 500=1.25% cpu : usr=0.13%, sys=0.64%, ctx=1406, 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=180989: Wed Sep 30 01:45:17 2026 write: IOPS=92, BW=372KiB/s (380kB/s)(10.0MiB/27559msec); 0 zone resets slat (usec): min=28, max=12540, avg=211.00, stdev=755.54 clat (msec): min=30, max=301, avg=171.28, stdev=34.26 lat (msec): min=30, max=301, avg=171.49, stdev=34.24 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 499, per=24.96%, avg=370.93, stdev=54.60, samples=54 iops : min= 63, max= 124, avg=92.37, stdev=13.64, samples=54 lat (msec) : 50=0.16%, 100=0.20%, 250=98.36%, 500=1.29% cpu : usr=0.14%, sys=0.96%, ctx=2794, 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=180990: Wed Sep 30 01:45:17 2026 write: IOPS=93, BW=373KiB/s (381kB/s)(10.0MiB/27487msec); 0 zone resets slat (usec): min=28, max=13144, avg=215.68, stdev=801.74 clat (msec): min=20, max=293, avg=171.23, stdev=34.79 lat (msec): min=20, max=293, avg=171.45, stdev=34.78 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 123], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 257], 99.50th=[ 262], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 296] bw ( KiB/s): min= 255, max= 553, per=25.04%, avg=372.13, stdev=56.91, samples=54 iops : min= 63, max= 138, avg=92.70, stdev=14.21, samples=54 lat (msec) : 50=0.16%, 100=1.09%, 250=96.68%, 500=2.07% cpu : usr=0.20%, sys=0.95%, ctx=2821, 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=180991: Wed Sep 30 01:45:17 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27547msec); 0 zone resets slat (usec): min=28, max=12375, avg=189.86, stdev=657.64 clat (msec): min=33, max=294, avg=171.29, stdev=35.42 lat (msec): min=33, max=294, avg=171.48, stdev=35.44 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 125], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 264], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 254, max= 499, per=24.99%, avg=371.41, stdev=66.02, samples=54 iops : min= 63, max= 124, avg=92.50, stdev=16.46, samples=54 lat (msec) : 50=0.20%, 100=0.74%, 250=96.60%, 500=2.46% cpu : usr=0.16%, sys=0.78%, ctx=2503, 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=1486KiB/s (1522kB/s), 372KiB/s-373KiB/s (380kB/s-381kB/s), io=40.0MiB (41.9MB), run=27487-27559msec 29% 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=181006: Wed Sep 30 01:45:58 2026 read: IOPS=39, BW=158KiB/s (161kB/s)(5048KiB/32031msec) slat (usec): min=33, max=92524, avg=13695.96, stdev=8015.93 clat (msec): min=58, max=589, avg=191.66, stdev=50.38 lat (msec): min=65, max=613, avg=205.36, stdev=51.69 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 384], 99.90th=[ 575], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 94, max= 239, per=25.28%, avg=157.49, stdev=29.59, samples=63 iops : min= 23, max= 59, avg=38.94, stdev= 7.41, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5192KiB/32031msec); 0 zone resets slat (usec): min=29, max=22710, avg=245.39, stdev=973.84 clat (msec): min=64, max=568, avg=194.16, stdev=43.81 lat (msec): min=64, max=568, avg=194.41, stdev=43.78 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 342], 99.90th=[ 535], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 95, max= 237, per=25.00%, avg=162.25, stdev=32.68, samples=63 iops : min= 23, max= 59, avg=40.14, stdev= 8.21, samples=63 lat (msec) : 100=0.35%, 250=89.65%, 500=9.77%, 750=0.23% cpu : usr=0.23%, sys=1.64%, ctx=4064, 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=181007: Wed Sep 30 01:45:58 2026 read: IOPS=38, BW=155KiB/s (158kB/s)(4976KiB/32182msec) slat (msec): min=3, max=144, avg=14.04, stdev= 8.54 clat (msec): min=37, max=376, avg=190.84, stdev=45.44 lat (msec): min=47, max=403, avg=204.89, stdev=46.89 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 359], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 88, max= 224, per=24.75%, avg=154.19, stdev=36.75, samples=63 iops : min= 22, max= 56, avg=38.10, stdev= 9.23, samples=63 write: IOPS=40, BW=164KiB/s (167kB/s)(5264KiB/32182msec); 0 zone resets slat (usec): min=32, max=8927, avg=198.62, stdev=546.87 clat (msec): min=20, max=436, avg=195.53, stdev=42.13 lat (msec): min=20, max=436, avg=195.73, stdev=42.10 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 268], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 376], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 79, max= 242, per=25.25%, avg=163.89, stdev=34.30, samples=63 iops : min= 19, max= 60, avg=40.56, stdev= 8.58, samples=63 lat (msec) : 50=0.08%, 100=0.59%, 250=88.44%, 500=10.90% cpu : usr=0.20%, sys=1.55%, ctx=4303, 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=181008: Wed Sep 30 01:45:58 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(4984KiB/31953msec) slat (usec): min=2743, max=69484, avg=13832.21, stdev=7699.88 clat (msec): min=27, max=516, avg=189.67, stdev=43.80 lat (msec): min=35, max=539, avg=203.51, stdev=45.19 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 435], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 87, max= 245, per=25.04%, avg=156.00, stdev=34.71, samples=63 iops : min= 21, max= 61, avg=38.59, stdev= 8.69, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5256KiB/31953msec); 0 zone resets slat (usec): min=35, max=23481, avg=223.37, stdev=909.49 clat (msec): min=50, max=494, avg=193.93, stdev=44.37 lat (msec): min=51, max=494, avg=194.15, stdev=44.33 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 95, max= 255, per=25.25%, avg=163.90, stdev=38.64, samples=63 iops : min= 23, max= 63, avg=40.54, stdev= 9.70, samples=63 lat (msec) : 50=0.08%, 100=0.51%, 250=90.31%, 500=9.06%, 750=0.04% cpu : usr=0.25%, sys=1.60%, ctx=4318, 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=181009: Wed Sep 30 01:45:58 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5060KiB/32156msec) slat (usec): min=2945, max=65345, avg=13928.99, stdev=7736.60 clat (msec): min=11, max=359, avg=189.46, stdev=43.38 lat (msec): min=18, max=383, avg=203.39, stdev=44.99 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 126], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 62, max= 218, per=25.32%, avg=157.75, stdev=32.23, samples=63 iops : min= 15, max= 54, avg=39.02, stdev= 8.07, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5180KiB/32156msec); 0 zone resets slat (usec): min=28, max=14177, avg=194.36, stdev=700.55 clat (msec): min=90, max=411, avg=195.90, stdev=42.08 lat (msec): min=90, max=411, avg=196.10, stdev=42.07 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 249], 95.00th=[ 262], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 229, per=24.78%, avg=160.83, stdev=34.13, samples=63 iops : min= 15, max= 57, avg=39.76, stdev= 8.56, samples=63 lat (msec) : 20=0.04%, 50=0.04%, 100=0.27%, 250=90.08%, 500=9.57% cpu : usr=0.21%, sys=1.46%, ctx=4243, 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=624KiB/s (639kB/s), 155KiB/s-158KiB/s (158kB/s-161kB/s), io=19.6MiB (20.5MB), run=31953-32182msec WRITE: bw=649KiB/s (665kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=20.4MiB (21.4MB), run=31953-32182msec 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=181019: Wed Sep 30 01:46:12 2026 read: IOPS=1, BW=61.3MiB/s (64.3MB/s)(40.0MiB/652msec) slat (nsec): min=57730k, max=57730k, avg=57730432.00, stdev= 0.00 clat (nsec): min=565691k, max=565691k, avg=565691282.00, stdev= 0.00 lat (nsec): min=623426k, max=623426k, avg=623425952.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.00%, ctx=10, 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=61.3MiB/s (64.3MB/s), 61.3MiB/s-61.3MiB/s (64.3MB/s-64.3MB/s), io=40.0MiB (41.9MB), run=652-652msec 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