== sanity test 398c: run fio to test AIO ================= 18:39:55 (1773614395) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.920329 s, 45.6 MB/s osc.lustre-OST0000-osc-ffff8e84126ec000.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=182167: Sun Mar 15 18:40:53 2026 write: IOPS=61, BW=246KiB/s (252kB/s)(10.0MiB/41674msec); 0 zone resets slat (usec): min=35, max=25924, avg=433.92, stdev=1477.89 clat (msec): min=20, max=443, avg=258.54, stdev=66.21 lat (msec): min=21, max=443, avg=258.98, stdev=66.23 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 159], 10.00th=[ 176], 20.00th=[ 201], | 30.00th=[ 222], 40.00th=[ 236], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 317], 90.00th=[ 351], 95.00th=[ 380], | 99.00th=[ 409], 99.50th=[ 422], 99.90th=[ 430], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 122, max= 453, per=24.95%, avg=245.02, stdev=77.24, samples=82 iops : min= 30, max= 113, avg=60.78, stdev=19.29, samples=82 lat (msec) : 50=0.16%, 100=0.04%, 250=47.50%, 500=52.30% cpu : usr=0.15%, sys=1.05%, ctx=2372, 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=182168: Sun Mar 15 18:40:53 2026 write: IOPS=61, BW=246KiB/s (252kB/s)(10.0MiB/41658msec); 0 zone resets slat (usec): min=45, max=38044, avg=368.78, stdev=1475.37 clat (msec): min=29, max=466, avg=258.88, stdev=70.05 lat (msec): min=29, max=466, avg=259.25, stdev=70.08 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 197], | 30.00th=[ 218], 40.00th=[ 236], 50.00th=[ 251], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 321], 90.00th=[ 359], 95.00th=[ 384], | 99.00th=[ 430], 99.50th=[ 443], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 126, max= 471, per=24.99%, avg=245.35, stdev=68.72, samples=82 iops : min= 31, max= 117, avg=60.87, stdev=17.17, samples=82 lat (msec) : 50=0.08%, 100=0.62%, 250=49.30%, 500=50.00% cpu : usr=0.14%, sys=0.98%, ctx=1939, 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=182169: Sun Mar 15 18:40:53 2026 write: IOPS=61, BW=246KiB/s (252kB/s)(10.0MiB/41689msec); 0 zone resets slat (usec): min=37, max=18209, avg=364.61, stdev=1110.15 clat (msec): min=53, max=442, avg=258.53, stdev=67.91 lat (msec): min=56, max=444, avg=258.90, stdev=67.91 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 159], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 218], 40.00th=[ 236], 50.00th=[ 253], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 355], 95.00th=[ 380], | 99.00th=[ 422], 99.50th=[ 426], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 443] bw ( KiB/s): min= 123, max= 463, per=24.84%, avg=243.95, stdev=69.60, samples=82 iops : min= 30, max= 115, avg=60.51, stdev=17.42, samples=82 lat (msec) : 100=0.20%, 250=48.01%, 500=51.80% cpu : usr=0.18%, sys=1.09%, ctx=2197, 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=182170: Sun Mar 15 18:40:53 2026 write: IOPS=61, BW=247KiB/s (253kB/s)(10.0MiB/41396msec); 0 zone resets slat (usec): min=39, max=29013, avg=398.26, stdev=1300.48 clat (msec): min=39, max=454, avg=257.87, stdev=68.40 lat (msec): min=40, max=454, avg=258.28, stdev=68.41 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 155], 10.00th=[ 176], 20.00th=[ 199], | 30.00th=[ 218], 40.00th=[ 236], 50.00th=[ 251], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 359], 95.00th=[ 384], | 99.00th=[ 422], 99.50th=[ 426], 99.90th=[ 443], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 127, max= 383, per=25.09%, avg=246.34, stdev=61.26, samples=82 iops : min= 31, max= 95, avg=61.10, stdev=15.30, samples=82 lat (msec) : 50=0.08%, 100=0.27%, 250=49.02%, 500=50.62% cpu : usr=0.15%, sys=1.22%, ctx=2841, 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=983KiB/s (1006kB/s), 246KiB/s-247KiB/s (252kB/s-253kB/s), io=40.0MiB (41.9MB), run=41396-41689msec 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=182187: Sun Mar 15 18:41:58 2026 read: IOPS=25, BW=104KiB/s (106kB/s)(5048KiB/48686msec) slat (usec): min=98, max=86048, avg=20901.89, stdev=10604.24 clat (msec): min=9, max=576, avg=290.27, stdev=70.32 lat (msec): min=15, max=589, avg=311.18, stdev=73.10 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 197], 10.00th=[ 213], 20.00th=[ 236], | 30.00th=[ 253], 40.00th=[ 268], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 317], 80.00th=[ 342], 90.00th=[ 380], 95.00th=[ 422], | 99.00th=[ 485], 99.50th=[ 498], 99.90th=[ 567], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 39, max= 165, per=25.06%, avg=102.50, stdev=25.36, samples=96 iops : min= 9, max= 41, avg=25.01, stdev= 6.39, samples=96 write: IOPS=26, BW=107KiB/s (109kB/s)(5192KiB/48686msec); 0 zone resets slat (usec): min=57, max=27335, avg=423.38, stdev=1482.66 clat (msec): min=37, max=552, avg=296.04, stdev=69.15 lat (msec): min=37, max=552, avg=296.47, stdev=69.24 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 201], 10.00th=[ 224], 20.00th=[ 243], | 30.00th=[ 259], 40.00th=[ 271], 50.00th=[ 288], 60.00th=[ 300], | 70.00th=[ 321], 80.00th=[ 351], 90.00th=[ 397], 95.00th=[ 430], | 99.00th=[ 477], 99.50th=[ 485], 99.90th=[ 514], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 46, max= 181, per=24.78%, avg=105.58, stdev=30.61, samples=96 iops : min= 11, max= 45, avg=25.80, stdev= 7.69, samples=96 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=0.39%, 250=25.90% lat (msec) : 500=73.32%, 750=0.27% cpu : usr=0.24%, sys=1.81%, ctx=4425, 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=182188: Sun Mar 15 18:41:58 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(4976KiB/48960msec) slat (usec): min=4311, max=93058, avg=21008.60, stdev=10531.17 clat (msec): min=81, max=539, avg=291.91, stdev=67.28 lat (msec): min=103, max=563, avg=312.93, stdev=69.71 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 192], 10.00th=[ 215], 20.00th=[ 239], | 30.00th=[ 255], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 347], 90.00th=[ 380], 95.00th=[ 409], | 99.00th=[ 477], 99.50th=[ 514], 99.90th=[ 527], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 47, max= 191, per=24.59%, avg=100.57, stdev=28.89, samples=96 iops : min= 11, max= 47, avg=24.51, stdev= 7.27, samples=96 write: IOPS=26, BW=108KiB/s (110kB/s)(5264KiB/48960msec); 0 zone resets slat (usec): min=56, max=34356, avg=441.15, stdev=1499.77 clat (msec): min=84, max=531, avg=296.42, stdev=62.46 lat (msec): min=86, max=531, avg=296.86, stdev=62.57 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 209], 10.00th=[ 224], 20.00th=[ 247], | 30.00th=[ 264], 40.00th=[ 279], 50.00th=[ 292], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 347], 90.00th=[ 384], 95.00th=[ 414], | 99.00th=[ 460], 99.50th=[ 485], 99.90th=[ 527], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 39, max= 189, per=25.11%, avg=106.99, stdev=30.35, samples=96 iops : min= 9, max= 47, avg=26.15, stdev= 7.63, samples=96 lat (msec) : 100=0.16%, 250=23.95%, 500=75.31%, 750=0.59% cpu : usr=0.23%, sys=1.72%, ctx=4245, 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=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=182189: Sun Mar 15 18:41:58 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(4984KiB/48878msec) slat (usec): min=3961, max=71260, avg=20546.01, stdev=10071.10 clat (msec): min=48, max=513, avg=290.16, stdev=68.62 lat (msec): min=64, max=568, avg=310.71, stdev=70.92 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 190], 10.00th=[ 213], 20.00th=[ 234], | 30.00th=[ 251], 40.00th=[ 268], 50.00th=[ 284], 60.00th=[ 300], | 70.00th=[ 321], 80.00th=[ 347], 90.00th=[ 380], 95.00th=[ 418], | 99.00th=[ 485], 99.50th=[ 498], 99.90th=[ 510], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 55, max= 205, per=24.82%, avg=101.51, stdev=28.71, samples=96 iops : min= 13, max= 51, avg=24.75, stdev= 7.25, samples=96 write: IOPS=26, BW=108KiB/s (110kB/s)(5256KiB/48878msec); 0 zone resets slat (usec): min=51, max=17716, avg=399.46, stdev=1116.81 clat (msec): min=117, max=536, avg=297.36, stdev=63.11 lat (msec): min=117, max=536, avg=297.76, stdev=63.12 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 211], 10.00th=[ 228], 20.00th=[ 249], | 30.00th=[ 262], 40.00th=[ 275], 50.00th=[ 288], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 342], 90.00th=[ 388], 95.00th=[ 422], | 99.00th=[ 481], 99.50th=[ 489], 99.90th=[ 523], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 39, max= 175, per=25.05%, avg=106.71, stdev=29.95, samples=96 iops : min= 9, max= 43, avg=26.08, stdev= 7.54, samples=96 lat (msec) : 50=0.04%, 100=0.08%, 250=24.84%, 500=74.73%, 750=0.31% cpu : usr=0.19%, sys=1.65%, ctx=4295, 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=182190: Sun Mar 15 18:41:58 2026 read: IOPS=25, BW=103KiB/s (106kB/s)(5060KiB/48948msec) slat (usec): min=3081, max=95576, avg=20786.08, stdev=10814.70 clat (msec): min=63, max=530, avg=290.54, stdev=65.93 lat (msec): min=82, max=564, avg=311.34, stdev=68.54 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 197], 10.00th=[ 218], 20.00th=[ 241], | 30.00th=[ 257], 40.00th=[ 271], 50.00th=[ 279], 60.00th=[ 296], | 70.00th=[ 317], 80.00th=[ 342], 90.00th=[ 380], 95.00th=[ 409], | 99.00th=[ 472], 99.50th=[ 493], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 47, max= 228, per=25.10%, avg=102.65, stdev=26.40, samples=96 iops : min= 11, max= 57, avg=25.05, stdev= 6.66, samples=96 write: IOPS=26, BW=106KiB/s (108kB/s)(5180KiB/48948msec); 0 zone resets slat (usec): min=59, max=19907, avg=369.89, stdev=1027.25 clat (msec): min=82, max=548, avg=298.10, stdev=67.13 lat (msec): min=82, max=549, avg=298.47, stdev=67.20 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 209], 10.00th=[ 228], 20.00th=[ 249], | 30.00th=[ 262], 40.00th=[ 275], 50.00th=[ 288], 60.00th=[ 300], | 70.00th=[ 321], 80.00th=[ 347], 90.00th=[ 388], 95.00th=[ 435], | 99.00th=[ 502], 99.50th=[ 518], 99.90th=[ 542], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 39, max= 218, per=24.60%, avg=104.79, stdev=29.63, samples=96 iops : min= 9, max= 54, avg=25.58, stdev= 7.43, samples=96 lat (msec) : 100=0.20%, 250=23.52%, 500=75.70%, 750=0.59% cpu : usr=0.22%, sys=1.80%, ctx=4311, 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=410KiB/s (420kB/s), 102KiB/s-104KiB/s (104kB/s-106kB/s), io=19.6MiB (20.5MB), run=48686-48960msec WRITE: bw=427KiB/s (437kB/s), 106KiB/s-108KiB/s (108kB/s-110kB/s), io=20.4MiB (21.4MB), run=48686-48960msec 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=182203: Sun Mar 15 18:42:19 2026 read: IOPS=1, BW=44.1MiB/s (46.2MB/s)(40.0MiB/907msec) slat (nsec): min=53831k, max=53831k, avg=53830792.00, stdev= 0.00 clat (nsec): min=832680k, max=832680k, avg=832680093.00, stdev= 0.00 lat (nsec): min=886515k, max=886515k, avg=886515098.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] lat (msec) : 1000=100.00% cpu : usr=0.33%, sys=2.21%, ctx=12, 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=44.1MiB/s (46.2MB/s), 44.1MiB/s-44.1MiB/s (46.2MB/s-46.2MB/s), io=40.0MiB (41.9MB), run=907-907msec 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