== sanity test 398c: run fio to test AIO ================= 08:27:49 (1787833669) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.580476 s, 72.3 MB/s osc.lustre-OST0000-osc-ffff8cbbd1a63800.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=179195: Thu Aug 27 08:28:28 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27355msec); 0 zone resets slat (usec): min=32, max=18786, avg=254.14, stdev=832.07 clat (msec): min=28, max=334, avg=170.58, stdev=39.13 lat (msec): min=29, max=334, avg=170.83, stdev=39.14 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 114], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 233, max= 510, per=24.99%, avg=373.64, stdev=66.87, samples=53 iops : min= 58, max= 127, avg=92.94, stdev=16.72, samples=53 lat (msec) : 50=0.08%, 100=0.98%, 250=95.70%, 500=3.24% cpu : usr=0.26%, sys=1.25%, ctx=2966, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=179196: Thu Aug 27 08:28:29 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27391msec); 0 zone resets slat (usec): min=23, max=10357, avg=171.13, stdev=553.72 clat (msec): min=22, max=340, avg=170.36, stdev=38.84 lat (msec): min=23, max=340, avg=170.54, stdev=38.85 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 215, max= 510, per=24.90%, avg=372.23, stdev=75.76, samples=53 iops : min= 53, max= 127, avg=92.62, stdev=18.96, samples=53 lat (msec) : 50=0.27%, 100=0.62%, 250=96.60%, 500=2.50% cpu : usr=0.20%, sys=0.96%, ctx=1743, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=179197: Thu Aug 27 08:28:29 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27340msec); 0 zone resets slat (usec): min=26, max=24282, avg=236.60, stdev=959.76 clat (msec): min=16, max=334, avg=170.55, stdev=38.68 lat (msec): min=17, max=334, avg=170.79, stdev=38.68 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 309], | 99.99th=[ 334] bw ( KiB/s): min= 249, max= 549, per=24.98%, avg=373.45, stdev=74.17, samples=53 iops : min= 62, max= 137, avg=92.91, stdev=18.54, samples=53 lat (msec) : 20=0.04%, 50=0.16%, 100=1.45%, 250=95.59%, 500=2.77% cpu : usr=0.26%, sys=1.13%, ctx=2465, 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=179198: Thu Aug 27 08:28:29 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27387msec); 0 zone resets slat (usec): min=25, max=15783, avg=211.04, stdev=742.95 clat (msec): min=33, max=331, avg=170.07, stdev=39.54 lat (msec): min=33, max=340, avg=170.29, stdev=39.55 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 236], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 249, max= 510, per=24.83%, avg=371.25, stdev=68.29, samples=53 iops : min= 62, max= 127, avg=92.34, stdev=17.11, samples=53 lat (msec) : 50=0.31%, 100=1.76%, 250=94.77%, 500=3.16% cpu : usr=0.17%, sys=1.08%, ctx=2329, 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 Run status group 0 (all jobs): WRITE: bw=1495KiB/s (1531kB/s), 374KiB/s-375KiB/s (383kB/s-384kB/s), io=40.0MiB (41.9MB), run=27340-27391msec 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=179214: Thu Aug 27 08:29:09 2026 read: IOPS=41, BW=165KiB/s (168kB/s)(5048KiB/30684msec) slat (usec): min=2576, max=58185, avg=14332.50, stdev=8213.38 clat (msec): min=79, max=371, avg=179.92, stdev=45.68 lat (msec): min=85, max=394, avg=194.26, stdev=47.46 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 264], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 41, max= 295, per=25.03%, avg=163.67, stdev=43.25, samples=60 iops : min= 10, max= 73, avg=40.52, stdev=10.75, samples=60 write: IOPS=42, BW=169KiB/s (173kB/s)(5192KiB/30684msec); 0 zone resets slat (usec): min=26, max=11476, avg=251.85, stdev=679.58 clat (msec): min=51, max=392, avg=184.96, stdev=43.00 lat (msec): min=51, max=392, avg=185.22, stdev=42.99 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 122], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 259], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 34, max= 265, per=24.89%, avg=169.28, stdev=39.46, samples=60 iops : min= 8, max= 66, avg=41.92, stdev= 9.92, samples=60 lat (msec) : 100=1.56%, 250=91.80%, 500=6.64% cpu : usr=0.34%, sys=2.12%, ctx=4370, 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=179215: Thu Aug 27 08:29:09 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4976KiB/30662msec) slat (usec): min=2706, max=54985, avg=14081.90, stdev=8105.96 clat (msec): min=18, max=389, avg=180.01, stdev=46.33 lat (msec): min=45, max=394, avg=194.10, stdev=48.00 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 34, max= 237, per=24.69%, avg=161.50, stdev=38.93, samples=60 iops : min= 8, max= 59, avg=39.98, stdev= 9.74, samples=60 write: IOPS=42, BW=172KiB/s (176kB/s)(5264KiB/30662msec); 0 zone resets slat (usec): min=32, max=8936, avg=239.23, stdev=585.44 clat (msec): min=69, max=414, avg=185.45, stdev=44.78 lat (msec): min=69, max=414, avg=185.69, stdev=44.77 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 334], 99.50th=[ 363], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 71, max= 311, per=25.29%, avg=171.97, stdev=44.36, samples=60 iops : min= 17, max= 77, avg=42.60, stdev=11.10, samples=60 lat (msec) : 20=0.04%, 100=1.41%, 250=92.19%, 500=6.37% cpu : usr=0.31%, sys=2.09%, ctx=4094, 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=179216: Thu Aug 27 08:29:09 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(4984KiB/30531msec) slat (usec): min=52, max=66225, avg=14373.73, stdev=8336.97 clat (msec): min=33, max=399, avg=181.44, stdev=47.46 lat (msec): min=34, max=425, avg=195.82, stdev=48.99 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 317], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 95, max= 247, per=25.00%, avg=163.52, stdev=32.67, samples=60 iops : min= 23, max= 61, avg=40.45, stdev= 8.15, samples=60 write: IOPS=43, BW=172KiB/s (176kB/s)(5256KiB/30531msec); 0 zone resets slat (usec): min=36, max=20043, avg=279.89, stdev=853.42 clat (msec): min=23, max=399, avg=185.00, stdev=45.01 lat (msec): min=26, max=399, avg=185.28, stdev=45.00 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 114], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 326], 99.50th=[ 368], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 87, max= 343, per=25.23%, avg=171.58, stdev=47.90, samples=60 iops : min= 21, max= 85, avg=42.48, stdev=11.99, samples=60 lat (msec) : 50=0.16%, 100=2.19%, 250=90.47%, 500=7.19% cpu : usr=0.34%, sys=2.08%, ctx=4442, 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=179217: Thu Aug 27 08:29:09 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5060KiB/30656msec) slat (usec): min=2789, max=53546, avg=14142.85, stdev=7712.28 clat (msec): min=18, max=410, avg=179.37, stdev=46.26 lat (msec): min=25, max=426, avg=193.52, stdev=48.06 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 112], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 54, max= 263, per=25.27%, avg=165.28, stdev=40.75, samples=60 iops : min= 13, max= 65, avg=40.90, stdev=10.23, samples=60 write: IOPS=42, BW=169KiB/s (173kB/s)(5180KiB/30656msec); 0 zone resets slat (usec): min=26, max=19530, avg=314.43, stdev=1061.79 clat (msec): min=81, max=403, avg=186.03, stdev=44.42 lat (msec): min=81, max=403, avg=186.35, stdev=44.41 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 268], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 75, max= 287, per=24.83%, avg=168.85, stdev=40.22, samples=60 iops : min= 18, max= 71, avg=41.80, stdev=10.06, samples=60 lat (msec) : 20=0.04%, 100=1.76%, 250=90.90%, 500=7.30% cpu : usr=0.27%, sys=2.04%, ctx=4593, 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=654KiB/s (670kB/s), 162KiB/s-165KiB/s (166kB/s-169kB/s), io=19.6MiB (20.5MB), run=30531-30684msec WRITE: bw=681KiB/s (697kB/s), 169KiB/s-172KiB/s (173kB/s-176kB/s), io=20.4MiB (21.4MB), run=30531-30684msec 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=179226: Thu Aug 27 08:29:18 2026 read: IOPS=2, BW=84.6MiB/s (88.7MB/s)(40.0MiB/473msec) slat (nsec): min=34088k, max=34088k, avg=34088407.00, stdev= 0.00 clat (nsec): min=418545k, max=418545k, avg=418544844.00, stdev= 0.00 lat (nsec): min=452637k, max=452637k, avg=452636936.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.54%, ctx=13, majf=0, minf=7 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=84.6MiB/s (88.7MB/s), 84.6MiB/s-84.6MiB/s (88.7MB/s-88.7MB/s), io=40.0MiB (41.9MB), run=473-473msec 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