== sanity test 398c: run fio to test AIO ================= 22:33:01 (1789785181) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.549806 s, 76.3 MB/s osc.lustre-OST0000-osc-ffff959e2e58a800.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=181590: Fri Sep 18 22:33:43 2026 write: IOPS=75, BW=303KiB/s (310kB/s)(10.0MiB/33806msec); 0 zone resets slat (usec): min=28, max=15012, avg=192.70, stdev=787.61 clat (msec): min=33, max=406, avg=210.45, stdev=58.25 lat (msec): min=33, max=406, avg=210.64, stdev=58.26 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 393], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 143, max= 633, per=24.89%, avg=301.38, stdev=81.13, samples=66 iops : min= 35, max= 158, avg=75.00, stdev=20.30, samples=66 lat (msec) : 50=0.16%, 100=0.08%, 250=78.44%, 500=21.33% cpu : usr=0.14%, sys=0.80%, ctx=1964, 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=181591: Fri Sep 18 22:33:43 2026 write: IOPS=75, BW=303KiB/s (311kB/s)(10.0MiB/33745msec); 0 zone resets slat (usec): min=27, max=18821, avg=211.73, stdev=898.72 clat (msec): min=38, max=428, avg=210.07, stdev=57.44 lat (msec): min=38, max=428, avg=210.28, stdev=57.46 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 125], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 321], | 99.00th=[ 363], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 430] bw ( KiB/s): min= 136, max= 601, per=25.00%, avg=302.79, stdev=78.61, samples=66 iops : min= 34, max= 150, avg=75.35, stdev=19.68, samples=66 lat (msec) : 50=0.12%, 100=1.25%, 250=77.46%, 500=21.17% cpu : usr=0.16%, sys=0.84%, ctx=2203, 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=181592: Fri Sep 18 22:33:43 2026 write: IOPS=75, BW=303KiB/s (310kB/s)(10.0MiB/33771msec); 0 zone resets slat (usec): min=29, max=19969, avg=228.22, stdev=927.56 clat (msec): min=39, max=429, avg=210.04, stdev=58.77 lat (msec): min=39, max=429, avg=210.27, stdev=58.79 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 127], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 317], | 99.00th=[ 393], 99.50th=[ 409], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 430] bw ( KiB/s): min= 126, max= 506, per=24.88%, avg=301.33, stdev=67.58, samples=66 iops : min= 31, max= 126, avg=74.98, stdev=16.87, samples=66 lat (msec) : 50=0.16%, 100=1.25%, 250=76.45%, 500=22.15% cpu : usr=0.15%, sys=0.86%, ctx=2620, 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=181593: Fri Sep 18 22:33:43 2026 write: IOPS=76, BW=305KiB/s (312kB/s)(10.0MiB/33620msec); 0 zone resets slat (usec): min=22, max=18258, avg=193.35, stdev=832.71 clat (msec): min=25, max=418, avg=209.73, stdev=58.37 lat (msec): min=25, max=418, avg=209.93, stdev=58.37 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 126], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 321], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 135, max= 538, per=25.12%, avg=304.20, stdev=76.78, samples=66 iops : min= 33, max= 134, avg=75.71, stdev=19.19, samples=66 lat (msec) : 50=0.16%, 100=1.68%, 250=76.48%, 500=21.68% cpu : usr=0.11%, sys=0.75%, ctx=1940, 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=1212KiB/s (1241kB/s), 303KiB/s-305KiB/s (310kB/s-312kB/s), io=40.0MiB (41.9MB), run=33620-33806msec 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=181609: Fri Sep 18 22:34:28 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35384msec) slat (usec): min=2294, max=93199, avg=15380.89, stdev=9952.95 clat (msec): min=55, max=435, avg=209.09, stdev=64.05 lat (msec): min=69, max=452, avg=224.48, stdev=67.01 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 120], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 169], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 239], 80.00th=[ 264], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 409], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 51, max= 271, per=24.99%, avg=141.71, stdev=43.05, samples=69 iops : min= 12, max= 67, avg=34.91, stdev=10.79, samples=69 write: IOPS=36, BW=147KiB/s (150kB/s)(5192KiB/35384msec); 0 zone resets slat (usec): min=31, max=14299, avg=227.84, stdev=741.95 clat (msec): min=64, max=424, avg=213.52, stdev=61.78 lat (msec): min=64, max=424, avg=213.76, stdev=61.80 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 222], | 70.00th=[ 241], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 40, max= 287, per=24.79%, avg=146.26, stdev=46.07, samples=69 iops : min= 10, max= 71, avg=36.09, stdev=11.46, samples=69 lat (msec) : 100=1.88%, 250=72.81%, 500=25.31% cpu : usr=0.17%, sys=1.40%, ctx=4151, 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=181610: Fri Sep 18 22:34:28 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4976KiB/35328msec) slat (usec): min=2840, max=85241, avg=15483.21, stdev=10217.40 clat (msec): min=68, max=438, avg=209.04, stdev=64.49 lat (msec): min=74, max=465, avg=224.53, stdev=67.69 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 122], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 218], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 40, max= 279, per=24.70%, avg=140.03, stdev=40.48, samples=69 iops : min= 10, max= 69, avg=34.52, stdev=10.08, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5264KiB/35328msec); 0 zone resets slat (usec): min=31, max=22949, avg=228.73, stdev=968.07 clat (msec): min=74, max=411, avg=214.22, stdev=61.67 lat (msec): min=74, max=411, avg=214.45, stdev=61.66 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 224], | 70.00th=[ 243], 80.00th=[ 266], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 293, per=25.22%, avg=148.83, stdev=47.01, samples=69 iops : min= 15, max= 73, avg=36.71, stdev=11.71, samples=69 lat (msec) : 100=1.37%, 250=73.59%, 500=25.04% cpu : usr=0.23%, sys=1.58%, ctx=4144, 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=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=181611: Fri Sep 18 22:34:28 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(4984KiB/35207msec) slat (usec): min=87, max=93365, avg=15286.72, stdev=10073.04 clat (msec): min=32, max=432, avg=208.16, stdev=63.47 lat (msec): min=32, max=466, avg=223.45, stdev=66.21 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 116], 10.00th=[ 132], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 186], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 259], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 72, max= 255, per=24.96%, avg=141.52, stdev=41.45, samples=69 iops : min= 18, max= 63, avg=34.88, stdev=10.31, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35207msec); 0 zone resets slat (usec): min=30, max=14844, avg=223.43, stdev=708.48 clat (msec): min=74, max=422, avg=215.82, stdev=61.70 lat (msec): min=75, max=422, avg=216.05, stdev=61.71 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 192], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 278, per=25.16%, avg=148.45, stdev=44.99, samples=69 iops : min= 17, max= 69, avg=36.62, stdev=11.25, samples=69 lat (msec) : 50=0.12%, 100=1.33%, 250=72.66%, 500=25.90% cpu : usr=0.19%, sys=1.47%, ctx=4251, 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=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=181612: Fri Sep 18 22:34:28 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5060KiB/35377msec) slat (usec): min=2791, max=76473, avg=15321.82, stdev=9707.61 clat (msec): min=31, max=481, avg=207.92, stdev=61.70 lat (msec): min=55, max=504, avg=223.25, stdev=64.72 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 40, max= 247, per=25.12%, avg=142.43, stdev=42.12, samples=69 iops : min= 10, max= 61, avg=35.13, stdev=10.50, samples=69 write: IOPS=36, BW=146KiB/s (150kB/s)(5180KiB/35377msec); 0 zone resets slat (usec): min=32, max=16797, avg=279.80, stdev=1080.80 clat (msec): min=77, max=467, avg=215.09, stdev=62.96 lat (msec): min=77, max=467, avg=215.37, stdev=63.00 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 224], | 70.00th=[ 249], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 460], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 68, max= 303, per=24.65%, avg=145.46, stdev=44.37, samples=69 iops : min= 17, max= 75, avg=35.88, stdev=11.04, samples=69 lat (msec) : 50=0.04%, 100=1.52%, 250=71.99%, 500=26.45% cpu : usr=0.21%, sys=1.54%, ctx=4000, 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=567KiB/s (581kB/s), 141KiB/s-143KiB/s (144kB/s-146kB/s), io=19.6MiB (20.5MB), run=35207-35384msec WRITE: bw=590KiB/s (605kB/s), 146KiB/s-149KiB/s (150kB/s-153kB/s), io=20.4MiB (21.4MB), run=35207-35384msec 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=181621: Fri Sep 18 22:34:39 2026 read: IOPS=1, BW=64.3MiB/s (67.4MB/s)(40.0MiB/622msec) slat (nsec): min=46779k, max=46779k, avg=46778542.00, stdev= 0.00 clat (nsec): min=542908k, max=542908k, avg=542908104.00, stdev= 0.00 lat (nsec): min=589691k, max=589691k, avg=589691426.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.93%, ctx=5, majf=0, minf=10 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=64.3MiB/s (67.4MB/s), 64.3MiB/s-64.3MiB/s (67.4MB/s-67.4MB/s), io=40.0MiB (41.9MB), run=622-622msec 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