== sanity test 398c: run fio to test AIO ================= 22:15:26 (1789524926) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.209207 s, 200 MB/s osc.lustre-OST0000-osc-ffff8ef591c69800.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=179816: Tue Sep 15 22:15:44 2026 write: IOPS=186, BW=744KiB/s (762kB/s)(10.0MiB/13759msec); 0 zone resets slat (usec): min=24, max=10728, avg=155.89, stdev=500.11 clat (msec): min=17, max=160, avg=85.75, stdev=18.80 lat (msec): min=18, max=160, avg=85.91, stdev=18.79 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 71], | 30.00th=[ 75], 40.00th=[ 80], 50.00th=[ 85], 60.00th=[ 90], | 70.00th=[ 95], 80.00th=[ 103], 90.00th=[ 111], 95.00th=[ 118], | 99.00th=[ 136], 99.50th=[ 138], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 536, max= 998, per=25.04%, avg=741.81, stdev=101.86, samples=27 iops : min= 134, max= 249, avg=185.26, stdev=25.41, samples=27 lat (msec) : 20=0.04%, 50=2.42%, 100=74.80%, 250=22.73% cpu : usr=0.28%, sys=1.77%, ctx=3022, 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=179817: Tue Sep 15 22:15:44 2026 write: IOPS=185, BW=741KiB/s (758kB/s)(10.0MiB/13828msec); 0 zone resets slat (usec): min=22, max=59268, avg=171.24, stdev=1253.31 clat (msec): min=16, max=158, avg=85.63, stdev=18.81 lat (msec): min=17, max=158, avg=85.80, stdev=18.76 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 71], | 30.00th=[ 75], 40.00th=[ 81], 50.00th=[ 85], 60.00th=[ 89], | 70.00th=[ 95], 80.00th=[ 103], 90.00th=[ 111], 95.00th=[ 118], | 99.00th=[ 132], 99.50th=[ 142], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 159] bw ( KiB/s): min= 544, max= 918, per=24.86%, avg=736.33, stdev=94.35, samples=27 iops : min= 136, max= 229, avg=183.89, stdev=23.55, samples=27 lat (msec) : 20=0.16%, 50=2.15%, 100=76.33%, 250=21.37% cpu : usr=0.40%, sys=1.92%, ctx=2917, 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=179818: Tue Sep 15 22:15:44 2026 write: IOPS=185, BW=741KiB/s (759kB/s)(10.0MiB/13820msec); 0 zone resets slat (usec): min=24, max=4962, avg=132.25, stdev=286.09 clat (msec): min=9, max=157, avg=85.54, stdev=18.78 lat (msec): min=10, max=157, avg=85.67, stdev=18.78 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 70], | 30.00th=[ 75], 40.00th=[ 81], 50.00th=[ 85], 60.00th=[ 89], | 70.00th=[ 94], 80.00th=[ 101], 90.00th=[ 111], 95.00th=[ 117], | 99.00th=[ 138], 99.50th=[ 144], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 616, max= 982, per=24.87%, avg=736.67, stdev=100.29, samples=27 iops : min= 154, max= 245, avg=184.00, stdev=25.01, samples=27 lat (msec) : 10=0.04%, 50=1.72%, 100=77.46%, 250=20.78% cpu : usr=0.30%, sys=1.90%, ctx=2907, 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=179819: Tue Sep 15 22:15:44 2026 write: IOPS=185, BW=741KiB/s (759kB/s)(10.0MiB/13818msec); 0 zone resets slat (usec): min=23, max=52358, avg=166.14, stdev=1085.08 clat (msec): min=18, max=159, avg=85.58, stdev=18.46 lat (msec): min=18, max=159, avg=85.74, stdev=18.46 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 63], 20.00th=[ 70], | 30.00th=[ 75], 40.00th=[ 81], 50.00th=[ 86], 60.00th=[ 89], | 70.00th=[ 94], 80.00th=[ 102], 90.00th=[ 111], 95.00th=[ 118], | 99.00th=[ 136], 99.50th=[ 140], 99.90th=[ 144], 99.95th=[ 148], | 99.99th=[ 161] bw ( KiB/s): min= 608, max= 958, per=24.91%, avg=737.81, stdev=92.40, samples=27 iops : min= 152, max= 239, avg=184.26, stdev=23.06, samples=27 lat (msec) : 20=0.04%, 50=1.80%, 100=76.64%, 250=21.52% cpu : usr=0.36%, sys=1.89%, ctx=3027, 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 Run status group 0 (all jobs): WRITE: bw=2962KiB/s (3033kB/s), 741KiB/s-744KiB/s (758kB/s-762kB/s), io=40.0MiB (41.9MB), run=13759-13828msec 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=179831: Tue Sep 15 22:16:00 2026 read: IOPS=101, BW=407KiB/s (416kB/s)(5048KiB/12418msec) slat (usec): min=1368, max=21932, avg=5136.23, stdev=2662.80 clat (msec): min=29, max=143, avg=73.97, stdev=19.66 lat (msec): min=33, max=159, avg=79.11, stdev=20.69 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 56], | 30.00th=[ 63], 40.00th=[ 68], 50.00th=[ 72], 60.00th=[ 78], | 70.00th=[ 85], 80.00th=[ 91], 90.00th=[ 101], 95.00th=[ 110], | 99.00th=[ 126], 99.50th=[ 133], 99.90th=[ 138], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 293, max= 496, per=24.99%, avg=403.83, stdev=66.04, samples=24 iops : min= 73, max= 124, avg=100.71, stdev=16.60, samples=24 write: IOPS=104, BW=418KiB/s (428kB/s)(5192KiB/12418msec); 0 zone resets slat (usec): min=24, max=4067, avg=134.31, stdev=212.84 clat (msec): min=11, max=148, avg=75.20, stdev=20.52 lat (msec): min=11, max=148, avg=75.34, stdev=20.54 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 46], 10.00th=[ 50], 20.00th=[ 56], | 30.00th=[ 63], 40.00th=[ 69], 50.00th=[ 74], 60.00th=[ 80], | 70.00th=[ 86], 80.00th=[ 91], 90.00th=[ 102], 95.00th=[ 113], | 99.00th=[ 131], 99.50th=[ 138], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 271, max= 648, per=24.83%, avg=417.67, stdev=85.88, samples=24 iops : min= 67, max= 162, avg=104.17, stdev=21.63, samples=24 lat (msec) : 20=0.04%, 50=10.59%, 100=79.06%, 250=10.31% cpu : usr=0.39%, sys=2.76%, ctx=4831, 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=179832: Tue Sep 15 22:16:00 2026 read: IOPS=100, BW=401KiB/s (411kB/s)(4976KiB/12412msec) slat (usec): min=1260, max=24251, avg=5316.56, stdev=2673.62 clat (msec): min=29, max=150, avg=74.37, stdev=20.30 lat (msec): min=32, max=157, avg=79.69, stdev=21.19 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 50], 20.00th=[ 56], | 30.00th=[ 63], 40.00th=[ 68], 50.00th=[ 73], 60.00th=[ 79], | 70.00th=[ 85], 80.00th=[ 92], 90.00th=[ 101], 95.00th=[ 111], | 99.00th=[ 128], 99.50th=[ 133], 99.90th=[ 148], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 284, max= 592, per=24.77%, avg=400.33, stdev=76.91, samples=24 iops : min= 71, max= 148, avg=99.87, stdev=19.34, samples=24 write: IOPS=106, BW=424KiB/s (434kB/s)(5264KiB/12412msec); 0 zone resets slat (usec): min=32, max=4398, avg=135.43, stdev=239.11 clat (msec): min=24, max=144, avg=74.85, stdev=20.69 lat (msec): min=24, max=144, avg=74.99, stdev=20.69 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 50], 20.00th=[ 56], | 30.00th=[ 62], 40.00th=[ 69], 50.00th=[ 74], 60.00th=[ 80], | 70.00th=[ 86], 80.00th=[ 93], 90.00th=[ 103], 95.00th=[ 110], | 99.00th=[ 131], 99.50th=[ 138], 99.90th=[ 142], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 295, max= 536, per=25.17%, avg=423.33, stdev=83.42, samples=24 iops : min= 73, max= 134, avg=105.62, stdev=21.01, samples=24 lat (msec) : 50=10.51%, 100=78.44%, 250=11.05% cpu : usr=0.38%, sys=2.83%, ctx=4757, 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=179833: Tue Sep 15 22:16:00 2026 read: IOPS=100, BW=402KiB/s (411kB/s)(4984KiB/12412msec) slat (usec): min=1223, max=19636, avg=5199.72, stdev=2657.25 clat (msec): min=18, max=140, avg=73.35, stdev=19.79 lat (msec): min=24, max=152, avg=78.55, stdev=20.73 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 44], 10.00th=[ 50], 20.00th=[ 57], | 30.00th=[ 62], 40.00th=[ 67], 50.00th=[ 72], 60.00th=[ 78], | 70.00th=[ 84], 80.00th=[ 90], 90.00th=[ 100], 95.00th=[ 110], | 99.00th=[ 129], 99.50th=[ 131], 99.90th=[ 140], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 287, max= 576, per=24.85%, avg=401.63, stdev=76.10, samples=24 iops : min= 71, max= 144, avg=100.17, stdev=19.16, samples=24 write: IOPS=105, BW=423KiB/s (434kB/s)(5256KiB/12412msec); 0 zone resets slat (usec): min=28, max=4903, avg=134.68, stdev=239.19 clat (msec): min=28, max=134, avg=75.87, stdev=19.78 lat (msec): min=29, max=134, avg=76.00, stdev=19.80 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 57], | 30.00th=[ 65], 40.00th=[ 71], 50.00th=[ 77], 60.00th=[ 81], | 70.00th=[ 87], 80.00th=[ 92], 90.00th=[ 103], 95.00th=[ 112], | 99.00th=[ 126], 99.50th=[ 129], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 272, max= 568, per=24.98%, avg=420.21, stdev=86.46, samples=24 iops : min= 68, max= 142, avg=104.79, stdev=21.78, samples=24 lat (msec) : 20=0.04%, 50=10.51%, 100=79.22%, 250=10.23% cpu : usr=0.35%, sys=2.80%, ctx=4728, 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=179834: Tue Sep 15 22:16:00 2026 read: IOPS=102, BW=411KiB/s (421kB/s)(5060KiB/12319msec) slat (usec): min=32, max=22412, avg=5167.22, stdev=2739.47 clat (msec): min=6, max=144, avg=72.74, stdev=20.08 lat (msec): min=7, max=148, avg=77.91, stdev=21.21 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 44], 10.00th=[ 48], 20.00th=[ 56], | 30.00th=[ 62], 40.00th=[ 67], 50.00th=[ 72], 60.00th=[ 78], | 70.00th=[ 84], 80.00th=[ 91], 90.00th=[ 100], 95.00th=[ 107], | 99.00th=[ 125], 99.50th=[ 129], 99.90th=[ 134], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 304, max= 542, per=25.35%, avg=409.62, stdev=69.10, samples=24 iops : min= 76, max= 135, avg=102.17, stdev=17.37, samples=24 write: IOPS=105, BW=420KiB/s (431kB/s)(5180KiB/12319msec); 0 zone resets slat (usec): min=21, max=3546, avg=129.56, stdev=180.80 clat (msec): min=11, max=139, avg=75.77, stdev=20.28 lat (msec): min=11, max=139, avg=75.91, stdev=20.29 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 50], 20.00th=[ 57], | 30.00th=[ 65], 40.00th=[ 71], 50.00th=[ 75], 60.00th=[ 81], | 70.00th=[ 86], 80.00th=[ 92], 90.00th=[ 104], 95.00th=[ 114], | 99.00th=[ 128], 99.50th=[ 130], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 303, max= 600, per=24.85%, avg=417.96, stdev=89.54, samples=24 iops : min= 75, max= 150, avg=104.25, stdev=22.52, samples=24 lat (msec) : 10=0.16%, 20=0.12%, 50=11.68%, 100=77.70%, 250=10.35% cpu : usr=0.31%, sys=2.96%, ctx=4757, majf=0, minf=16 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=1616KiB/s (1655kB/s), 401KiB/s-411KiB/s (411kB/s-421kB/s), io=19.6MiB (20.5MB), run=12319-12418msec WRITE: bw=1682KiB/s (1723kB/s), 418KiB/s-424KiB/s (428kB/s-434kB/s), io=20.4MiB (21.4MB), run=12319-12418msec 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=179839: Tue Sep 15 22:16:05 2026 read: IOPS=4, BW=195MiB/s (205MB/s)(40.0MiB/205msec) slat (nsec): min=10440k, max=10440k, avg=10440492.00, stdev= 0.00 clat (nsec): min=185616k, max=185616k, avg=185616443.00, stdev= 0.00 lat (nsec): min=196061k, max=196061k, avg=196061169.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 186], 95.00th=[ 186], | 99.00th=[ 186], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.90%, ctx=5, majf=0, minf=9 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=195MiB/s (205MB/s), 195MiB/s-195MiB/s (205MB/s-205MB/s), io=40.0MiB (41.9MB), run=205-205msec 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