== sanity test 398c: run fio to test AIO ================= 23:55:32 (1788839732) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.569486 s, 73.7 MB/s osc.lustre-OST0000-osc-ffff987188e24800.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=180900: Mon Sep 7 23:56:08 2026 write: IOPS=97, BW=388KiB/s (397kB/s)(10.0MiB/26380msec); 0 zone resets slat (usec): min=19, max=9457, avg=180.22, stdev=516.75 clat (msec): min=13, max=314, avg=164.49, stdev=40.01 lat (msec): min=15, max=314, avg=164.68, stdev=40.00 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 257], 99.50th=[ 279], 99.90th=[ 300], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 208, max= 586, per=25.16%, avg=388.17, stdev=85.20, samples=52 iops : min= 52, max= 146, avg=96.63, stdev=21.32, samples=52 lat (msec) : 20=0.12%, 50=0.08%, 100=3.98%, 250=93.79%, 500=2.03% cpu : usr=0.19%, sys=1.08%, ctx=2915, 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=180901: Mon Sep 7 23:56:08 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26525msec); 0 zone resets slat (usec): min=24, max=15018, avg=190.61, stdev=636.86 clat (msec): min=22, max=293, avg=164.91, stdev=38.13 lat (msec): min=22, max=293, avg=165.10, stdev=38.13 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 108], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 257], 99.50th=[ 266], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 254, max= 590, per=24.98%, avg=385.46, stdev=76.41, samples=52 iops : min= 63, max= 147, avg=95.98, stdev=19.14, samples=52 lat (msec) : 50=0.08%, 100=3.09%, 250=94.38%, 500=2.46% cpu : usr=0.17%, sys=0.91%, ctx=2544, 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=180902: Mon Sep 7 23:56:08 2026 write: IOPS=96, BW=387KiB/s (396kB/s)(10.0MiB/26458msec); 0 zone resets slat (usec): min=22, max=7082, avg=182.57, stdev=473.77 clat (msec): min=8, max=292, avg=164.46, stdev=38.93 lat (msec): min=9, max=292, avg=164.65, stdev=38.94 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 240, max= 550, per=25.06%, avg=386.65, stdev=68.65, samples=52 iops : min= 60, max= 137, avg=96.27, stdev=17.15, samples=52 lat (msec) : 10=0.04%, 20=0.04%, 50=0.12%, 100=3.48%, 250=94.57% lat (msec) : 500=1.76% cpu : usr=0.19%, sys=1.19%, ctx=3230, 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=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=180903: Mon Sep 7 23:56:08 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26532msec); 0 zone resets slat (usec): min=21, max=8764, avg=135.12, stdev=440.46 clat (msec): min=20, max=299, avg=164.94, stdev=39.00 lat (msec): min=20, max=299, avg=165.08, stdev=39.00 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 111], 10.00th=[ 116], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 512, per=24.88%, avg=383.94, stdev=78.63, samples=52 iops : min= 63, max= 128, avg=95.62, stdev=19.71, samples=52 lat (msec) : 50=0.16%, 100=1.88%, 250=95.62%, 500=2.34% cpu : usr=0.10%, sys=0.75%, ctx=1432, 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=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=1544KiB/s (1581kB/s), 386KiB/s-388KiB/s (395kB/s-397kB/s), io=40.0MiB (41.9MB), run=26380-26532msec 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=180918: Mon Sep 7 23:56:43 2026 read: IOPS=47, BW=190KiB/s (195kB/s)(5048KiB/26514msec) slat (usec): min=2311, max=71591, avg=11778.21, stdev=6887.72 clat (msec): min=15, max=347, avg=154.87, stdev=40.27 lat (msec): min=35, max=358, avg=166.66, stdev=42.18 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 95], 10.00th=[ 107], 20.00th=[ 121], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 264], 99.50th=[ 284], 99.90th=[ 330], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 72, max= 277, per=24.97%, avg=188.79, stdev=44.47, samples=52 iops : min= 18, max= 69, avg=46.75, stdev=11.15, samples=52 write: IOPS=48, BW=196KiB/s (201kB/s)(5192KiB/26514msec); 0 zone resets slat (usec): min=32, max=8730, avg=185.74, stdev=433.80 clat (msec): min=36, max=345, avg=161.38, stdev=38.12 lat (msec): min=36, max=345, avg=161.57, stdev=38.12 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 213], 95.00th=[ 226], | 99.00th=[ 262], 99.50th=[ 292], 99.90th=[ 334], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 57, max= 302, per=24.79%, avg=195.12, stdev=44.68, samples=52 iops : min= 14, max= 75, avg=48.33, stdev=11.19, samples=52 lat (msec) : 20=0.04%, 50=0.20%, 100=4.77%, 250=93.28%, 500=1.72% cpu : usr=0.27%, sys=2.02%, ctx=4788, 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=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=180919: Mon Sep 7 23:56:43 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(4976KiB/26481msec) slat (usec): min=2601, max=49917, avg=11766.66, stdev=6435.58 clat (msec): min=28, max=318, avg=154.89, stdev=38.73 lat (msec): min=40, max=331, avg=166.66, stdev=40.72 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 99], 10.00th=[ 108], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 57, max= 288, per=24.71%, avg=186.83, stdev=43.74, samples=52 iops : min= 14, max= 72, avg=46.23, stdev=10.92, samples=52 write: IOPS=49, BW=199KiB/s (204kB/s)(5264KiB/26481msec); 0 zone resets slat (usec): min=28, max=11603, avg=199.95, stdev=606.53 clat (msec): min=30, max=337, avg=162.12, stdev=38.45 lat (msec): min=30, max=337, avg=162.32, stdev=38.44 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 105], 10.00th=[ 115], 20.00th=[ 129], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 264], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 119, max= 299, per=25.25%, avg=198.69, stdev=42.67, samples=52 iops : min= 29, max= 74, avg=49.23, stdev=10.64, samples=52 lat (msec) : 50=0.12%, 100=4.53%, 250=93.48%, 500=1.88% cpu : usr=0.32%, sys=1.85%, ctx=4544, 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=180920: Mon Sep 7 23:56:43 2026 read: IOPS=47, BW=190KiB/s (194kB/s)(4984KiB/26264msec) slat (usec): min=34, max=68522, avg=11305.01, stdev=6525.76 clat (msec): min=74, max=338, avg=157.01, stdev=40.50 lat (msec): min=80, max=351, avg=168.32, stdev=42.02 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 101], 10.00th=[ 109], 20.00th=[ 124], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 211], 95.00th=[ 230], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 112, max= 272, per=25.02%, avg=189.17, stdev=38.40, samples=52 iops : min= 28, max= 68, avg=46.87, stdev= 9.61, samples=52 write: IOPS=50, BW=200KiB/s (205kB/s)(5256KiB/26264msec); 0 zone resets slat (usec): min=25, max=8282, avg=190.88, stdev=426.59 clat (msec): min=79, max=337, avg=159.17, stdev=38.02 lat (msec): min=79, max=337, avg=159.36, stdev=38.02 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 101], 10.00th=[ 112], 20.00th=[ 127], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 226], | 99.00th=[ 255], 99.50th=[ 259], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 88, max= 343, per=25.31%, avg=199.15, stdev=50.95, samples=52 iops : min= 22, max= 85, avg=49.33, stdev=12.73, samples=52 lat (msec) : 100=5.08%, 250=92.81%, 500=2.11% cpu : usr=0.25%, sys=1.96%, ctx=4440, 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=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=180921: Mon Sep 7 23:56:43 2026 read: IOPS=47, BW=191KiB/s (196kB/s)(5060KiB/26497msec) slat (usec): min=2311, max=77107, avg=11613.09, stdev=6477.95 clat (msec): min=60, max=338, avg=157.18, stdev=40.37 lat (msec): min=72, max=349, avg=168.80, stdev=42.04 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 78, max= 268, per=25.17%, avg=190.27, stdev=36.26, samples=52 iops : min= 19, max= 67, avg=47.12, stdev= 9.08, samples=52 write: IOPS=48, BW=195KiB/s (200kB/s)(5180KiB/26497msec); 0 zone resets slat (usec): min=30, max=6356, avg=208.46, stdev=506.74 clat (msec): min=62, max=271, avg=159.48, stdev=36.64 lat (msec): min=62, max=271, avg=159.69, stdev=36.64 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 86, max= 318, per=24.70%, avg=194.38, stdev=45.32, samples=52 iops : min= 21, max= 79, avg=48.15, stdev=11.35, samples=52 lat (msec) : 100=5.04%, 250=93.09%, 500=1.88% cpu : usr=0.31%, sys=1.99%, ctx=4836, 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=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=757KiB/s (775kB/s), 188KiB/s-191KiB/s (192kB/s-196kB/s), io=19.6MiB (20.5MB), run=26264-26514msec WRITE: bw=788KiB/s (807kB/s), 195KiB/s-200KiB/s (200kB/s-205kB/s), io=20.4MiB (21.4MB), run=26264-26514msec 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=180929: Mon Sep 7 23:56:53 2026 read: IOPS=2, BW=81.0MiB/s (85.9MB/s)(40.0MiB/488msec) slat (nsec): min=22046k, max=22046k, avg=22046364.00, stdev= 0.00 clat (nsec): min=438707k, max=438707k, avg=438706655.00, stdev= 0.00 lat (nsec): min=460758k, max=460758k, avg=460758459.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.03%, ctx=3, 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=81.0MiB/s (85.9MB/s), 81.0MiB/s-81.0MiB/s (85.9MB/s-85.9MB/s), io=40.0MiB (41.9MB), run=488-488msec 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