== sanity test 398c: run fio to test AIO ================= 04:04:05 (1786953845) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.467783 s, 89.7 MB/s osc.lustre-OST0000-osc-ffff9d2f1341f800.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=180273: Mon Aug 17 04:04:44 2026 write: IOPS=87, BW=351KiB/s (359kB/s)(10.0MiB/29213msec); 0 zone resets slat (usec): min=37, max=23113, avg=287.48, stdev=954.62 clat (msec): min=36, max=368, avg=181.81, stdev=42.62 lat (msec): min=36, max=368, avg=182.10, stdev=42.60 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 342], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 239, max= 480, per=24.90%, avg=348.89, stdev=64.68, samples=57 iops : min= 59, max= 120, avg=86.84, stdev=16.15, samples=57 lat (msec) : 50=0.08%, 100=1.60%, 250=91.84%, 500=6.48% cpu : usr=0.16%, sys=1.19%, ctx=2350, 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=180274: Mon Aug 17 04:04:44 2026 write: IOPS=87, BW=350KiB/s (359kB/s)(10.0MiB/29223msec); 0 zone resets slat (usec): min=52, max=19812, avg=295.68, stdev=951.99 clat (msec): min=13, max=346, avg=181.63, stdev=43.69 lat (msec): min=13, max=346, avg=181.93, stdev=43.69 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 191, max= 504, per=24.86%, avg=348.33, stdev=68.94, samples=58 iops : min= 47, max= 126, avg=86.69, stdev=17.20, samples=58 lat (msec) : 20=0.08%, 50=0.08%, 100=1.99%, 250=91.37%, 500=6.48% cpu : usr=0.14%, sys=1.08%, ctx=2462, 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=180275: Mon Aug 17 04:04:44 2026 write: IOPS=87, BW=352KiB/s (360kB/s)(10.0MiB/29100msec); 0 zone resets slat (usec): min=50, max=12908, avg=313.89, stdev=926.72 clat (msec): min=36, max=366, avg=181.44, stdev=43.69 lat (msec): min=36, max=366, avg=181.76, stdev=43.69 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 121], 10.00th=[ 134], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 313], 99.50th=[ 317], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 176, max= 502, per=25.00%, avg=350.28, stdev=66.37, samples=57 iops : min= 44, max= 125, avg=87.18, stdev=16.54, samples=57 lat (msec) : 50=0.23%, 100=1.64%, 250=92.66%, 500=5.47% cpu : usr=0.22%, sys=1.26%, ctx=2645, 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=180276: Mon Aug 17 04:04:44 2026 write: IOPS=87, BW=350KiB/s (359kB/s)(10.0MiB/29222msec); 0 zone resets slat (usec): min=43, max=14873, avg=253.28, stdev=830.40 clat (msec): min=37, max=364, avg=181.72, stdev=43.01 lat (msec): min=37, max=364, avg=181.98, stdev=42.99 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 216, max= 512, per=24.84%, avg=348.00, stdev=71.47, samples=57 iops : min= 54, max= 128, avg=86.60, stdev=17.83, samples=57 lat (msec) : 50=0.04%, 100=1.37%, 250=92.23%, 500=6.37% cpu : usr=0.13%, sys=1.06%, ctx=2044, 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=1402KiB/s (1435kB/s), 350KiB/s-352KiB/s (359kB/s-360kB/s), io=40.0MiB (41.9MB), run=29100-29223msec 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=180292: Mon Aug 17 04:05:28 2026 read: IOPS=37, BW=151KiB/s (154kB/s)(5048KiB/33468msec) slat (usec): min=2481, max=61889, avg=14620.25, stdev=7974.87 clat (msec): min=25, max=357, avg=197.42, stdev=43.33 lat (msec): min=35, max=397, avg=212.05, stdev=44.86 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 79, max= 208, per=24.92%, avg=149.28, stdev=28.19, samples=65 iops : min= 19, max= 52, avg=36.83, stdev= 7.09, samples=65 write: IOPS=38, BW=155KiB/s (159kB/s)(5192KiB/33468msec); 0 zone resets slat (usec): min=54, max=8346, avg=244.77, stdev=492.64 clat (msec): min=38, max=334, avg=202.91, stdev=41.48 lat (msec): min=38, max=334, avg=203.16, stdev=41.50 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 71, max= 224, per=24.73%, avg=154.34, stdev=34.73, samples=65 iops : min= 17, max= 56, avg=38.11, stdev= 8.74, samples=65 lat (msec) : 50=0.16%, 100=0.20%, 250=86.25%, 500=13.40% cpu : usr=0.21%, sys=1.68%, ctx=4230, 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=180293: Mon Aug 17 04:05:28 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(4976KiB/33392msec) slat (usec): min=3036, max=86645, avg=14383.81, stdev=8197.92 clat (msec): min=66, max=362, avg=196.82, stdev=42.20 lat (msec): min=77, max=374, avg=211.21, stdev=43.90 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 71, max= 224, per=24.71%, avg=148.03, stdev=34.94, samples=65 iops : min= 17, max= 56, avg=36.54, stdev= 8.78, samples=65 write: IOPS=39, BW=158KiB/s (161kB/s)(5264KiB/33392msec); 0 zone resets slat (usec): min=53, max=16163, avg=294.91, stdev=890.07 clat (msec): min=66, max=359, avg=203.64, stdev=43.16 lat (msec): min=66, max=359, avg=203.94, stdev=43.15 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 87, max= 233, per=25.15%, avg=156.95, stdev=32.33, samples=65 iops : min= 21, max= 58, avg=38.75, stdev= 8.12, samples=65 lat (msec) : 100=0.27%, 250=86.99%, 500=12.73% cpu : usr=0.22%, sys=1.77%, ctx=4697, 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=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=180294: Mon Aug 17 04:05:28 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(4984KiB/33393msec) slat (usec): min=58, max=72080, avg=14890.92, stdev=8332.58 clat (msec): min=27, max=358, avg=198.48, stdev=44.16 lat (msec): min=38, max=388, avg=213.37, stdev=45.90 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 88, max= 224, per=24.82%, avg=148.69, stdev=28.57, samples=65 iops : min= 22, max= 56, avg=36.69, stdev= 7.16, samples=65 write: IOPS=39, BW=157KiB/s (161kB/s)(5256KiB/33393msec); 0 zone resets slat (usec): min=53, max=21790, avg=295.75, stdev=1015.87 clat (msec): min=83, max=357, avg=203.42, stdev=43.28 lat (msec): min=83, max=357, avg=203.72, stdev=43.28 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 169], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 326], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 55, max= 264, per=25.01%, avg=156.08, stdev=40.65, samples=65 iops : min= 13, max= 66, avg=38.52, stdev=10.24, samples=65 lat (msec) : 50=0.04%, 100=0.31%, 250=86.13%, 500=13.52% cpu : usr=0.27%, sys=1.83%, ctx=4448, 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=180295: Mon Aug 17 04:05:28 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(5060KiB/33465msec) slat (usec): min=2973, max=69832, avg=14262.04, stdev=7930.80 clat (msec): min=25, max=352, avg=198.62, stdev=43.52 lat (msec): min=38, max=407, avg=212.89, stdev=45.08 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 326], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 63, max= 239, per=25.13%, avg=150.51, stdev=31.02, samples=65 iops : min= 15, max= 59, avg=37.12, stdev= 7.79, samples=65 write: IOPS=38, BW=155KiB/s (159kB/s)(5180KiB/33465msec); 0 zone resets slat (usec): min=54, max=29201, avg=298.00, stdev=1022.61 clat (msec): min=113, max=345, avg=202.77, stdev=39.86 lat (msec): min=114, max=345, avg=203.07, stdev=39.87 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 146], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 87, max= 232, per=24.67%, avg=153.94, stdev=33.10, samples=65 iops : min= 21, max= 58, avg=38.00, stdev= 8.32, samples=65 lat (msec) : 50=0.04%, 100=0.08%, 250=86.91%, 500=12.97% cpu : usr=0.18%, sys=1.63%, ctx=4123, 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=600KiB/s (614kB/s), 149KiB/s-151KiB/s (153kB/s-155kB/s), io=19.6MiB (20.5MB), run=33392-33468msec WRITE: bw=624KiB/s (639kB/s), 155KiB/s-158KiB/s (159kB/s-161kB/s), io=20.4MiB (21.4MB), run=33392-33468msec 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=180305: Mon Aug 17 04:05:37 2026 read: IOPS=2, BW=114MiB/s (119MB/s)(40.0MiB/352msec) slat (nsec): min=24173k, max=24173k, avg=24173264.00, stdev= 0.00 clat (nsec): min=303939k, max=303939k, avg=303938865.00, stdev= 0.00 lat (nsec): min=328116k, max=328116k, avg=328115644.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.13%, ctx=3, 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=114MiB/s (119MB/s), 114MiB/s-114MiB/s (119MB/s-119MB/s), io=40.0MiB (41.9MB), run=352-352msec 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