== sanity test 398c: run fio to test AIO ================= 12:48:48 (1786034928) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.730524 s, 57.4 MB/s osc.lustre-OST0000-osc-ffff9a3144bb8800.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=180227: Thu Aug 6 12:49:31 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31156msec); 0 zone resets slat (usec): min=38, max=20024, avg=338.20, stdev=1049.39 clat (msec): min=26, max=559, avg=193.39, stdev=49.58 lat (msec): min=27, max=559, avg=193.73, stdev=49.63 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 426], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 166, max= 512, per=25.09%, avg=329.64, stdev=75.18, samples=61 iops : min= 41, max= 128, avg=82.03, stdev=18.85, samples=61 lat (msec) : 50=0.08%, 100=0.59%, 250=84.57%, 500=14.69%, 750=0.08% cpu : usr=0.18%, sys=1.22%, ctx=2219, 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=180228: Thu Aug 6 12:49:31 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31106msec); 0 zone resets slat (usec): min=45, max=13672, avg=356.75, stdev=997.64 clat (msec): min=24, max=522, avg=192.97, stdev=51.58 lat (msec): min=25, max=522, avg=193.33, stdev=51.59 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 359], 99.50th=[ 401], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 523] bw ( KiB/s): min= 198, max= 512, per=25.18%, avg=330.82, stdev=71.53, samples=61 iops : min= 49, max= 128, avg=82.31, stdev=17.96, samples=61 lat (msec) : 50=0.08%, 100=0.23%, 250=86.95%, 500=12.70%, 750=0.04% cpu : usr=0.22%, sys=1.32%, ctx=2608, 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=180229: Thu Aug 6 12:49:31 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31152msec); 0 zone resets slat (usec): min=36, max=10329, avg=293.69, stdev=788.34 clat (msec): min=30, max=428, avg=193.19, stdev=48.07 lat (msec): min=30, max=429, avg=193.48, stdev=48.14 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 131], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 236], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 401], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 151, max= 510, per=25.04%, avg=328.98, stdev=66.86, samples=61 iops : min= 37, max= 127, avg=81.87, stdev=16.80, samples=61 lat (msec) : 50=0.16%, 100=0.20%, 250=87.19%, 500=12.46% cpu : usr=0.20%, sys=1.21%, ctx=1885, 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=180230: Thu Aug 6 12:49:31 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31090msec); 0 zone resets slat (usec): min=40, max=26209, avg=405.95, stdev=1327.65 clat (msec): min=17, max=621, avg=193.52, stdev=54.42 lat (msec): min=17, max=621, avg=193.93, stdev=54.45 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 128], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 174, max= 510, per=25.17%, avg=330.69, stdev=74.72, samples=61 iops : min= 43, max= 127, avg=82.28, stdev=18.74, samples=61 lat (msec) : 20=0.04%, 50=0.20%, 100=0.90%, 250=85.70%, 500=12.77% lat (msec) : 750=0.39% cpu : usr=0.21%, sys=1.34%, ctx=3030, 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=1315KiB/s (1346kB/s), 329KiB/s-329KiB/s (337kB/s-337kB/s), io=40.0MiB (41.9MB), run=31090-31156msec 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=180244: Thu Aug 6 12:50:20 2026 read: IOPS=33, BW=132KiB/s (136kB/s)(5048KiB/38137msec) slat (usec): min=50, max=78057, avg=16384.84, stdev=9839.36 clat (msec): min=67, max=481, avg=226.91, stdev=66.14 lat (msec): min=67, max=502, avg=243.30, stdev=68.96 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 136], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 234], | 70.00th=[ 255], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 351], | 99.00th=[ 422], 99.50th=[ 443], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 55, max= 222, per=25.23%, avg=131.93, stdev=37.96, samples=75 iops : min= 13, max= 55, avg=32.47, stdev= 9.53, samples=75 write: IOPS=34, BW=136KiB/s (139kB/s)(5192KiB/38137msec); 0 zone resets slat (usec): min=44, max=19623, avg=339.71, stdev=898.59 clat (msec): min=94, max=463, avg=232.42, stdev=60.70 lat (msec): min=94, max=463, avg=232.77, stdev=60.72 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 146], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 393], 99.50th=[ 414], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 55, max= 223, per=24.96%, avg=136.04, stdev=37.35, samples=75 iops : min= 13, max= 55, avg=33.51, stdev= 9.37, samples=75 lat (msec) : 100=0.43%, 250=65.70%, 500=33.87% cpu : usr=0.22%, sys=1.76%, ctx=4088, 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=180245: Thu Aug 6 12:50:20 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(4976KiB/38311msec) slat (usec): min=170, max=95874, avg=16695.23, stdev=9840.85 clat (msec): min=31, max=459, avg=226.33, stdev=64.21 lat (msec): min=53, max=500, avg=243.04, stdev=66.81 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 234], | 70.00th=[ 255], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 342], | 99.00th=[ 409], 99.50th=[ 422], 99.90th=[ 456], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 26, max= 223, per=24.66%, avg=128.97, stdev=38.17, samples=75 iops : min= 6, max= 55, avg=31.73, stdev= 9.53, samples=75 write: IOPS=34, BW=137KiB/s (141kB/s)(5264KiB/38311msec); 0 zone resets slat (usec): min=53, max=23551, avg=384.37, stdev=1260.29 clat (msec): min=61, max=467, avg=232.17, stdev=61.68 lat (msec): min=61, max=468, avg=232.56, stdev=61.74 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 338], | 99.00th=[ 405], 99.50th=[ 443], 99.90th=[ 464], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 64, max= 255, per=25.14%, avg=137.03, stdev=41.00, samples=75 iops : min= 16, max= 63, avg=33.76, stdev=10.30, samples=75 lat (msec) : 50=0.12%, 100=0.55%, 250=66.09%, 500=33.24% cpu : usr=0.23%, sys=1.99%, ctx=4155, 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=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=180246: Thu Aug 6 12:50:20 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(4984KiB/38325msec) slat (usec): min=3255, max=75074, avg=16688.23, stdev=9582.69 clat (msec): min=29, max=584, avg=226.54, stdev=67.92 lat (msec): min=48, max=617, avg=243.24, stdev=70.75 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 134], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 232], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 317], 95.00th=[ 351], | 99.00th=[ 422], 99.50th=[ 430], 99.90th=[ 567], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 37, max= 238, per=24.73%, avg=129.32, stdev=39.58, samples=75 iops : min= 9, max= 59, avg=31.83, stdev= 9.89, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5256KiB/38325msec); 0 zone resets slat (usec): min=53, max=18425, avg=344.25, stdev=994.86 clat (msec): min=24, max=493, avg=231.45, stdev=64.70 lat (msec): min=24, max=494, avg=231.79, stdev=64.78 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 347], | 99.00th=[ 422], 99.50th=[ 451], 99.90th=[ 489], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 43, max= 271, per=24.88%, avg=135.60, stdev=42.13, samples=75 iops : min= 10, max= 67, avg=33.39, stdev=10.59, samples=75 lat (msec) : 50=0.12%, 100=0.78%, 250=65.94%, 500=33.01%, 750=0.16% cpu : usr=0.22%, sys=1.80%, ctx=3944, 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=180247: Thu Aug 6 12:50:20 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(5060KiB/38250msec) slat (usec): min=60, max=66323, avg=16483.73, stdev=9535.47 clat (msec): min=33, max=460, avg=226.38, stdev=64.07 lat (msec): min=39, max=502, avg=242.88, stdev=66.92 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 234], | 70.00th=[ 255], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 347], | 99.00th=[ 401], 99.50th=[ 422], 99.90th=[ 456], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 59, max= 215, per=25.25%, avg=132.05, stdev=39.58, samples=75 iops : min= 14, max= 53, avg=32.51, stdev= 9.92, samples=75 write: IOPS=33, BW=135KiB/s (139kB/s)(5180KiB/38250msec); 0 zone resets slat (usec): min=47, max=11784, avg=358.00, stdev=928.98 clat (msec): min=42, max=477, avg=231.83, stdev=61.58 lat (msec): min=42, max=477, avg=232.19, stdev=61.61 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 317], 95.00th=[ 347], | 99.00th=[ 401], 99.50th=[ 422], 99.90th=[ 472], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 70, max= 237, per=24.77%, avg=134.97, stdev=37.96, samples=75 iops : min= 17, max= 59, avg=33.24, stdev= 9.56, samples=75 lat (msec) : 50=0.08%, 100=0.66%, 250=66.21%, 500=33.05% cpu : usr=0.21%, sys=1.82%, ctx=4141, 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=524KiB/s (536kB/s), 130KiB/s-132KiB/s (133kB/s-136kB/s), io=19.6MiB (20.5MB), run=38137-38325msec WRITE: bw=545KiB/s (558kB/s), 135KiB/s-137KiB/s (139kB/s-141kB/s), io=20.4MiB (21.4MB), run=38137-38325msec 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=180257: Thu Aug 6 12:50:31 2026 read: IOPS=1, BW=65.4MiB/s (68.5MB/s)(40.0MiB/612msec) slat (nsec): min=53156k, max=53156k, avg=53156067.00, stdev= 0.00 clat (nsec): min=541941k, max=541941k, avg=541940747.00, stdev= 0.00 lat (nsec): min=595102k, max=595102k, avg=595101927.00, 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=1.80%, ctx=12, 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=65.4MiB/s (68.5MB/s), 65.4MiB/s-65.4MiB/s (68.5MB/s-68.5MB/s), io=40.0MiB (41.9MB), run=612-612msec 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