== sanity test 398c: run fio to test AIO ================= 19:24:39 (1787700279) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.719801 s, 58.3 MB/s osc.lustre-OST0000-osc-ffff9957d16d4000.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=195751: Tue Aug 25 19:25:18 2026 write: IOPS=97, BW=390KiB/s (399kB/s)(10.0MiB/26253msec); 0 zone resets slat (usec): min=21, max=16390, avg=113.14, stdev=457.23 clat (msec): min=33, max=358, avg=163.00, stdev=48.09 lat (msec): min=33, max=358, avg=163.11, stdev=48.12 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 176], 80.00th=[ 194], 90.00th=[ 232], 95.00th=[ 257], | 99.00th=[ 313], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 359] bw ( KiB/s): min= 126, max= 632, per=24.91%, avg=388.27, stdev=106.46, samples=52 iops : min= 31, max= 158, avg=96.75, stdev=26.65, samples=52 lat (msec) : 50=0.04%, 100=3.20%, 250=89.69%, 500=7.07% cpu : usr=0.13%, sys=0.62%, ctx=794, 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=195752: Tue Aug 25 19:25:18 2026 write: IOPS=97, BW=391KiB/s (400kB/s)(10.0MiB/26217msec); 0 zone resets slat (usec): min=21, max=23266, avg=218.84, stdev=977.53 clat (msec): min=16, max=360, avg=163.30, stdev=48.24 lat (msec): min=17, max=360, avg=163.52, stdev=48.23 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 101], 10.00th=[ 114], 20.00th=[ 125], | 30.00th=[ 134], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 232], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 166, max= 616, per=25.08%, avg=391.02, stdev=100.80, samples=51 iops : min= 41, max= 154, avg=97.41, stdev=25.24, samples=51 lat (msec) : 20=0.04%, 50=0.16%, 100=4.49%, 250=88.71%, 500=6.60% cpu : usr=0.26%, sys=1.05%, ctx=2751, 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=195753: Tue Aug 25 19:25:18 2026 write: IOPS=97, BW=390KiB/s (400kB/s)(10.0MiB/26246msec); 0 zone resets slat (usec): min=21, max=28416, avg=168.28, stdev=855.15 clat (msec): min=17, max=367, avg=162.83, stdev=48.25 lat (msec): min=18, max=367, avg=163.00, stdev=48.29 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 230], 95.00th=[ 253], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 223, max= 533, per=24.92%, avg=388.44, stdev=86.13, samples=52 iops : min= 55, max= 133, avg=96.77, stdev=21.59, samples=52 lat (msec) : 20=0.04%, 50=0.16%, 100=3.63%, 250=90.98%, 500=5.20% cpu : usr=0.19%, sys=1.02%, ctx=1911, 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=195754: Tue Aug 25 19:25:18 2026 write: IOPS=97, BW=390KiB/s (399kB/s)(10.0MiB/26261msec); 0 zone resets slat (usec): min=21, max=16122, avg=125.01, stdev=525.88 clat (msec): min=24, max=349, avg=162.92, stdev=47.85 lat (msec): min=24, max=349, avg=163.05, stdev=47.84 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 232], 95.00th=[ 262], | 99.00th=[ 309], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 118, max= 608, per=24.92%, avg=388.50, stdev=103.81, samples=52 iops : min= 29, max= 152, avg=96.81, stdev=26.00, samples=52 lat (msec) : 50=0.04%, 100=3.09%, 250=90.04%, 500=6.84% cpu : usr=0.18%, sys=0.76%, ctx=1646, 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=1560KiB/s (1597kB/s), 390KiB/s-391KiB/s (399kB/s-400kB/s), io=40.0MiB (41.9MB), run=26217-26261msec 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=195769: Tue Aug 25 19:25:58 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(5048KiB/30837msec) slat (usec): min=36, max=122313, avg=13538.98, stdev=8286.60 clat (msec): min=11, max=407, avg=182.23, stdev=45.83 lat (msec): min=21, max=450, avg=195.78, stdev=47.73 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 309], 99.50th=[ 363], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 101, max= 303, per=25.10%, avg=162.87, stdev=37.67, samples=61 iops : min= 25, max= 75, avg=40.31, stdev= 9.46, samples=61 write: IOPS=42, BW=168KiB/s (172kB/s)(5192KiB/30837msec); 0 zone resets slat (usec): min=28, max=27855, avg=190.55, stdev=950.55 clat (msec): min=46, max=374, avg=188.97, stdev=42.35 lat (msec): min=46, max=374, avg=189.16, stdev=42.40 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 363], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 80, max= 246, per=24.89%, avg=168.23, stdev=33.88, samples=61 iops : min= 20, max= 61, avg=41.66, stdev= 8.47, samples=61 lat (msec) : 20=0.04%, 50=0.12%, 100=1.60%, 250=91.48%, 500=6.76% cpu : usr=0.36%, sys=1.73%, ctx=4259, 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=195770: Tue Aug 25 19:25:58 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4976KiB/30898msec) slat (usec): min=2510, max=59846, avg=13756.35, stdev=7644.85 clat (msec): min=8, max=382, avg=181.54, stdev=44.14 lat (msec): min=19, max=410, avg=195.30, stdev=45.62 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 292], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 79, max= 296, per=24.74%, avg=160.56, stdev=40.20, samples=61 iops : min= 19, max= 74, avg=39.74, stdev=10.08, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5264KiB/30898msec); 0 zone resets slat (usec): min=26, max=6723, avg=156.85, stdev=409.80 clat (msec): min=65, max=421, avg=188.37, stdev=43.38 lat (msec): min=66, max=421, avg=188.52, stdev=43.37 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 309], 99.50th=[ 363], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 111, max= 279, per=25.23%, avg=170.54, stdev=37.24, samples=61 iops : min= 27, max= 69, avg=42.21, stdev= 9.35, samples=61 lat (msec) : 10=0.04%, 100=1.45%, 250=92.15%, 500=6.37% cpu : usr=0.26%, sys=1.51%, ctx=3991, 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=195771: Tue Aug 25 19:25:58 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4984KiB/30899msec) slat (msec): min=3, max=183, avg=14.14, stdev= 9.96 clat (msec): min=12, max=460, avg=182.20, stdev=47.85 lat (msec): min=20, max=472, avg=196.35, stdev=50.00 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 79, max= 287, per=24.72%, avg=160.41, stdev=40.53, samples=61 iops : min= 19, max= 71, avg=39.69, stdev=10.16, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5256KiB/30899msec); 0 zone resets slat (usec): min=29, max=16815, avg=195.15, stdev=812.02 clat (msec): min=47, max=486, avg=187.13, stdev=49.21 lat (msec): min=47, max=486, avg=187.33, stdev=49.20 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 115], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 326], 99.50th=[ 435], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 94, max= 272, per=24.90%, avg=168.33, stdev=40.71, samples=61 iops : min= 23, max= 68, avg=41.67, stdev=10.22, samples=61 lat (msec) : 20=0.04%, 50=0.12%, 100=2.15%, 250=90.35%, 500=7.34% cpu : usr=0.24%, sys=1.78%, ctx=4156, 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=195772: Tue Aug 25 19:25:58 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(5060KiB/30895msec) slat (usec): min=2363, max=53877, avg=13590.39, stdev=7436.37 clat (msec): min=20, max=401, avg=181.95, stdev=44.08 lat (msec): min=35, max=421, avg=195.55, stdev=45.59 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 87, max= 280, per=25.22%, avg=163.67, stdev=41.47, samples=61 iops : min= 21, max= 70, avg=40.51, stdev=10.39, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5180KiB/30895msec); 0 zone resets slat (usec): min=24, max=11158, avg=184.01, stdev=676.90 clat (msec): min=44, max=438, avg=188.03, stdev=44.44 lat (msec): min=45, max=438, avg=188.21, stdev=44.48 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 351], 99.90th=[ 401], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 87, max= 296, per=24.71%, avg=167.03, stdev=38.79, samples=61 iops : min= 21, max= 74, avg=41.36, stdev= 9.74, samples=61 lat (msec) : 50=0.12%, 100=0.86%, 250=91.29%, 500=7.73% cpu : usr=0.23%, sys=1.60%, ctx=4013, 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=649KiB/s (665kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=19.6MiB (20.5MB), run=30837-30899msec WRITE: bw=676KiB/s (692kB/s), 168KiB/s-170KiB/s (172kB/s-174kB/s), io=20.4MiB (21.4MB), run=30837-30899msec 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=195781: Tue Aug 25 19:26:09 2026 read: IOPS=1, BW=74.5MiB/s (78.1MB/s)(40.0MiB/537msec) slat (nsec): min=67055k, max=67055k, avg=67055235.00, stdev= 0.00 clat (nsec): min=434076k, max=434076k, avg=434075674.00, stdev= 0.00 lat (nsec): min=501136k, max=501136k, avg=501135677.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.05%, ctx=9, 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=74.5MiB/s (78.1MB/s), 74.5MiB/s-74.5MiB/s (78.1MB/s-78.1MB/s), io=40.0MiB (41.9MB), run=537-537msec 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