== sanity test 398c: run fio to test AIO ================= 17:57:05 (1787867825) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.692558 s, 60.6 MB/s osc.lustre-OST0000-osc-ffff889805774000.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=180346: Thu Aug 27 17:57:45 2026 write: IOPS=88, BW=353KiB/s (361kB/s)(10.0MiB/29012msec); 0 zone resets slat (usec): min=30, max=29297, avg=252.50, stdev=947.30 clat (msec): min=23, max=328, avg=180.08, stdev=40.60 lat (msec): min=24, max=328, avg=180.34, stdev=40.60 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 245], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 255, max= 506, per=24.91%, avg=351.02, stdev=67.82, samples=57 iops : min= 63, max= 126, avg=87.35, stdev=16.97, samples=57 lat (msec) : 50=0.16%, 100=1.45%, 250=94.30%, 500=4.10% cpu : usr=0.19%, sys=1.03%, ctx=2298, majf=0, minf=8 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=180347: Thu Aug 27 17:57:45 2026 write: IOPS=88, BW=352KiB/s (361kB/s)(10.0MiB/29050msec); 0 zone resets slat (usec): min=28, max=17266, avg=292.20, stdev=938.64 clat (msec): min=23, max=329, avg=180.19, stdev=41.41 lat (msec): min=23, max=329, avg=180.49, stdev=41.42 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 215], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 231, max= 499, per=24.92%, avg=351.11, stdev=62.97, samples=57 iops : min= 57, max= 124, avg=87.33, stdev=15.73, samples=57 lat (msec) : 50=0.27%, 100=1.25%, 250=94.14%, 500=4.34% cpu : usr=0.19%, sys=1.22%, ctx=2608, majf=0, minf=8 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=180348: Thu Aug 27 17:57:45 2026 write: IOPS=88, BW=354KiB/s (363kB/s)(10.0MiB/28907msec); 0 zone resets slat (usec): min=23, max=21471, avg=261.34, stdev=1126.71 clat (msec): min=52, max=333, avg=180.22, stdev=42.12 lat (msec): min=52, max=333, avg=180.49, stdev=42.20 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 213], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 334] bw ( KiB/s): min= 199, max= 512, per=25.08%, avg=353.33, stdev=73.14, samples=57 iops : min= 49, max= 128, avg=87.93, stdev=18.31, samples=57 lat (msec) : 100=2.50%, 250=92.23%, 500=5.27% cpu : usr=0.18%, sys=0.97%, ctx=1713, 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=180349: Thu Aug 27 17:57:45 2026 write: IOPS=88, BW=353KiB/s (361kB/s)(10.0MiB/29034msec); 0 zone resets slat (usec): min=28, max=12792, avg=251.56, stdev=808.04 clat (msec): min=15, max=316, avg=180.36, stdev=41.34 lat (msec): min=15, max=316, avg=180.61, stdev=41.37 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 118], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 175, max= 506, per=24.95%, avg=351.49, stdev=68.44, samples=57 iops : min= 43, max= 126, avg=87.44, stdev=17.09, samples=57 lat (msec) : 20=0.04%, 50=0.12%, 100=1.17%, 250=92.81%, 500=5.86% cpu : usr=0.18%, sys=0.95%, ctx=2223, 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 Run status group 0 (all jobs): WRITE: bw=1410KiB/s (1444kB/s), 352KiB/s-354KiB/s (361kB/s-363kB/s), io=40.0MiB (41.9MB), run=28907-29050msec 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=180363: Thu Aug 27 17:58:36 2026 read: IOPS=29, BW=119KiB/s (122kB/s)(5048KiB/42288msec) slat (usec): min=35, max=104340, avg=18568.61, stdev=12505.17 clat (msec): min=59, max=654, avg=251.53, stdev=77.64 lat (msec): min=72, max=685, avg=270.11, stdev=81.98 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 150], 10.00th=[ 169], 20.00th=[ 188], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 236], 60.00th=[ 257], | 70.00th=[ 284], 80.00th=[ 317], 90.00th=[ 351], 95.00th=[ 393], | 99.00th=[ 477], 99.50th=[ 527], 99.90th=[ 642], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 47, max= 216, per=25.03%, avg=118.64, stdev=37.25, samples=83 iops : min= 11, max= 54, avg=29.14, stdev= 9.38, samples=83 write: IOPS=30, BW=123KiB/s (126kB/s)(5192KiB/42288msec); 0 zone resets slat (usec): min=28, max=11009, avg=270.05, stdev=855.88 clat (msec): min=79, max=565, avg=255.36, stdev=70.36 lat (msec): min=79, max=565, avg=255.63, stdev=70.36 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 230], 50.00th=[ 247], 60.00th=[ 268], | 70.00th=[ 288], 80.00th=[ 317], 90.00th=[ 355], 95.00th=[ 376], | 99.00th=[ 430], 99.50th=[ 477], 99.90th=[ 523], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 31, max= 215, per=24.83%, avg=122.40, stdev=36.20, samples=83 iops : min= 7, max= 53, avg=30.10, stdev= 9.10, samples=83 lat (msec) : 100=0.23%, 250=54.61%, 500=44.69%, 750=0.47% cpu : usr=0.19%, sys=1.43%, ctx=4188, 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=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=180364: Thu Aug 27 17:58:36 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(4976KiB/42119msec) slat (usec): min=34, max=93211, avg=18338.24, stdev=12180.76 clat (msec): min=24, max=606, avg=249.25, stdev=75.48 lat (msec): min=24, max=630, avg=267.60, stdev=79.04 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 186], | 30.00th=[ 201], 40.00th=[ 218], 50.00th=[ 236], 60.00th=[ 257], | 70.00th=[ 284], 80.00th=[ 313], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 456], 99.50th=[ 493], 99.90th=[ 558], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 39, max= 215, per=24.78%, avg=117.45, stdev=36.51, samples=83 iops : min= 9, max= 53, avg=28.84, stdev= 9.16, samples=83 write: IOPS=31, BW=125KiB/s (128kB/s)(5264KiB/42119msec); 0 zone resets slat (usec): min=32, max=16760, avg=289.17, stdev=1035.21 clat (msec): min=58, max=644, avg=258.24, stdev=80.57 lat (msec): min=58, max=644, avg=258.53, stdev=80.53 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 155], 10.00th=[ 171], 20.00th=[ 190], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 247], 60.00th=[ 268], | 70.00th=[ 288], 80.00th=[ 321], 90.00th=[ 368], 95.00th=[ 405], | 99.00th=[ 472], 99.50th=[ 584], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 55, max= 206, per=25.23%, avg=124.39, stdev=35.39, samples=83 iops : min= 13, max= 51, avg=30.59, stdev= 8.91, samples=83 lat (msec) : 50=0.16%, 100=0.51%, 250=53.32%, 500=45.39%, 750=0.62% cpu : usr=0.20%, sys=1.32%, ctx=3956, 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=180365: Thu Aug 27 17:58:36 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(4984KiB/42209msec) slat (usec): min=42, max=85499, avg=18352.82, stdev=11708.88 clat (msec): min=19, max=696, avg=250.59, stdev=74.84 lat (msec): min=38, max=719, avg=268.95, stdev=78.50 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 155], 10.00th=[ 169], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 222], 50.00th=[ 241], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 313], 90.00th=[ 351], 95.00th=[ 376], | 99.00th=[ 481], 99.50th=[ 510], 99.90th=[ 659], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 31, max= 206, per=24.81%, avg=117.59, stdev=37.61, samples=83 iops : min= 7, max= 51, avg=28.87, stdev= 9.48, samples=83 write: IOPS=31, BW=125KiB/s (128kB/s)(5256KiB/42209msec); 0 zone resets slat (usec): min=33, max=14047, avg=263.90, stdev=807.67 clat (msec): min=51, max=595, avg=256.00, stdev=78.24 lat (msec): min=52, max=595, avg=256.27, stdev=78.22 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 190], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 243], 60.00th=[ 264], | 70.00th=[ 288], 80.00th=[ 313], 90.00th=[ 359], 95.00th=[ 405], | 99.00th=[ 493], 99.50th=[ 523], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 47, max= 224, per=25.09%, avg=123.71, stdev=40.56, samples=83 iops : min= 11, max= 56, avg=30.42, stdev=10.14, samples=83 lat (msec) : 20=0.04%, 50=0.08%, 100=0.23%, 250=54.61%, 500=44.26% lat (msec) : 750=0.78% cpu : usr=0.18%, sys=1.37%, ctx=4099, 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=180366: Thu Aug 27 17:58:36 2026 read: IOPS=29, BW=120KiB/s (123kB/s)(5060KiB/42294msec) slat (usec): min=54, max=100491, avg=18175.38, stdev=12154.46 clat (msec): min=62, max=635, avg=251.26, stdev=77.73 lat (msec): min=96, max=703, avg=269.44, stdev=81.47 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 186], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 236], 60.00th=[ 257], | 70.00th=[ 279], 80.00th=[ 309], 90.00th=[ 359], 95.00th=[ 401], | 99.00th=[ 481], 99.50th=[ 527], 99.90th=[ 575], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 31, max= 214, per=25.12%, avg=119.06, stdev=35.72, samples=83 iops : min= 7, max= 53, avg=29.25, stdev= 8.97, samples=83 write: IOPS=30, BW=122KiB/s (125kB/s)(5180KiB/42294msec); 0 zone resets slat (usec): min=32, max=21414, avg=231.79, stdev=914.73 clat (msec): min=101, max=561, avg=256.12, stdev=73.77 lat (msec): min=102, max=561, avg=256.35, stdev=73.77 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 161], 10.00th=[ 174], 20.00th=[ 192], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 245], 60.00th=[ 262], | 70.00th=[ 288], 80.00th=[ 321], 90.00th=[ 355], 95.00th=[ 393], | 99.00th=[ 472], 99.50th=[ 518], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 55, max= 206, per=24.68%, avg=121.66, stdev=36.68, samples=83 iops : min= 13, max= 51, avg=29.92, stdev= 9.23, samples=83 lat (msec) : 100=0.12%, 250=54.96%, 500=44.18%, 750=0.74% cpu : usr=0.17%, sys=1.25%, ctx=3854, 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=474KiB/s (486kB/s), 118KiB/s-120KiB/s (121kB/s-123kB/s), io=19.6MiB (20.5MB), run=42119-42294msec WRITE: bw=494KiB/s (506kB/s), 122KiB/s-125KiB/s (125kB/s-128kB/s), io=20.4MiB (21.4MB), run=42119-42294msec 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=180377: Thu Aug 27 17:58:48 2026 read: IOPS=1, BW=71.9MiB/s (75.4MB/s)(40.0MiB/556msec) slat (nsec): min=31674k, max=31674k, avg=31674078.00, stdev= 0.00 clat (nsec): min=496695k, max=496695k, avg=496695231.00, stdev= 0.00 lat (nsec): min=528374k, max=528374k, avg=528373718.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.70%, ctx=8, 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=71.9MiB/s (75.4MB/s), 71.9MiB/s-71.9MiB/s (75.4MB/s-75.4MB/s), io=40.0MiB (41.9MB), run=556-556msec 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