== sanity test 398c: run fio to test AIO ================= 21:53:49 (1786413229) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.542319 s, 77.3 MB/s osc.lustre-OST0000-osc-ffff93c3c8462000.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=179350: Mon Aug 10 21:54:25 2026 write: IOPS=92, BW=372KiB/s (380kB/s)(10.0MiB/27561msec); 0 zone resets slat (usec): min=36, max=17776, avg=255.46, stdev=725.56 clat (msec): min=21, max=318, avg=170.82, stdev=38.23 lat (msec): min=21, max=318, avg=171.07, stdev=38.22 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 120], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 239], | 99.00th=[ 268], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 317] bw ( KiB/s): min= 117, max= 512, per=24.98%, avg=370.96, stdev=75.49, samples=54 iops : min= 29, max= 128, avg=92.35, stdev=18.89, samples=54 lat (msec) : 50=0.12%, 100=0.51%, 250=96.33%, 500=3.05% cpu : usr=0.15%, sys=1.09%, ctx=2349, 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=179351: Mon Aug 10 21:54:25 2026 write: IOPS=92, BW=371KiB/s (380kB/s)(10.0MiB/27567msec); 0 zone resets slat (usec): min=37, max=17130, avg=262.98, stdev=789.18 clat (msec): min=23, max=304, avg=170.95, stdev=38.53 lat (msec): min=23, max=304, avg=171.21, stdev=38.55 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 127], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 241], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 204, max= 512, per=25.03%, avg=371.67, stdev=76.50, samples=54 iops : min= 51, max= 128, avg=92.54, stdev=19.16, samples=54 lat (msec) : 50=0.16%, 100=0.86%, 250=95.55%, 500=3.44% cpu : usr=0.17%, sys=1.24%, ctx=2164, 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=179352: Mon Aug 10 21:54:25 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27403msec); 0 zone resets slat (usec): min=39, max=12252, avg=276.04, stdev=744.28 clat (msec): min=40, max=309, avg=170.75, stdev=38.12 lat (msec): min=41, max=309, avg=171.03, stdev=38.09 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 116], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 254, max= 512, per=25.14%, avg=373.28, stdev=71.42, samples=54 iops : min= 63, max= 128, avg=92.91, stdev=17.94, samples=54 lat (msec) : 50=0.04%, 100=0.51%, 250=95.94%, 500=3.52% cpu : usr=0.21%, sys=1.22%, ctx=2465, 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=179353: Mon Aug 10 21:54:25 2026 write: IOPS=93, BW=372KiB/s (381kB/s)(10.0MiB/27502msec); 0 zone resets slat (usec): min=50, max=31538, avg=309.98, stdev=1111.22 clat (msec): min=24, max=321, avg=171.14, stdev=38.21 lat (msec): min=25, max=321, avg=171.46, stdev=38.20 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 120], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 321] bw ( KiB/s): min= 261, max= 512, per=25.07%, avg=372.22, stdev=61.15, samples=54 iops : min= 65, max= 128, avg=92.65, stdev=15.33, samples=54 lat (msec) : 50=0.16%, 100=0.94%, 250=95.43%, 500=3.48% cpu : usr=0.21%, sys=1.40%, ctx=2847, 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 Run status group 0 (all jobs): WRITE: bw=1486KiB/s (1521kB/s), 371KiB/s-374KiB/s (380kB/s-383kB/s), io=40.0MiB (41.9MB), run=27403-27567msec 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=179367: Mon Aug 10 21:55:03 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5048KiB/29459msec) slat (usec): min=61, max=52255, avg=13171.04, stdev=7355.72 clat (msec): min=66, max=340, avg=173.52, stdev=44.52 lat (msec): min=67, max=381, avg=186.70, stdev=46.37 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 232], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 87, max= 344, per=24.97%, avg=170.03, stdev=42.46, samples=58 iops : min= 21, max= 86, avg=42.07, stdev=10.65, samples=58 write: IOPS=44, BW=176KiB/s (180kB/s)(5192KiB/29459msec); 0 zone resets slat (usec): min=53, max=13353, avg=335.03, stdev=877.97 clat (msec): min=33, max=351, avg=179.44, stdev=42.65 lat (msec): min=33, max=351, avg=179.78, stdev=42.67 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 87, max= 247, per=24.71%, avg=175.17, stdev=37.49, samples=58 iops : min= 21, max= 61, avg=43.34, stdev= 9.40, samples=58 lat (msec) : 50=0.08%, 100=2.15%, 250=91.91%, 500=5.86% cpu : usr=0.31%, sys=2.41%, ctx=4676, 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=179368: Mon Aug 10 21:55:03 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4976KiB/29430msec) slat (usec): min=83, max=59937, avg=13234.33, stdev=7263.41 clat (msec): min=18, max=349, avg=172.28, stdev=43.80 lat (msec): min=24, max=371, avg=185.53, stdev=45.46 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 87, max= 264, per=24.69%, avg=168.17, stdev=43.50, samples=58 iops : min= 21, max= 66, avg=41.59, stdev=10.91, samples=58 write: IOPS=44, BW=179KiB/s (183kB/s)(5264KiB/29430msec); 0 zone resets slat (usec): min=49, max=12012, avg=336.26, stdev=796.47 clat (msec): min=74, max=339, avg=180.27, stdev=43.42 lat (msec): min=74, max=339, avg=180.61, stdev=43.44 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 103, max= 304, per=25.16%, avg=178.38, stdev=38.13, samples=58 iops : min= 25, max= 76, avg=44.14, stdev= 9.58, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=1.80%, 250=92.50%, 500=5.59% cpu : usr=0.26%, sys=2.07%, ctx=4291, 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=179369: Mon Aug 10 21:55:03 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4984KiB/29417msec) slat (usec): min=56, max=48233, avg=13356.00, stdev=7389.48 clat (msec): min=34, max=308, avg=175.20, stdev=43.84 lat (msec): min=47, max=326, avg=188.57, stdev=45.64 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 95, max= 286, per=24.82%, avg=169.00, stdev=37.09, samples=58 iops : min= 23, max= 71, avg=41.81, stdev= 9.32, samples=58 write: IOPS=44, BW=179KiB/s (183kB/s)(5256KiB/29417msec); 0 zone resets slat (usec): min=44, max=20033, avg=400.31, stdev=1213.44 clat (msec): min=82, max=340, avg=178.46, stdev=41.70 lat (msec): min=82, max=340, avg=178.86, stdev=41.74 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 112], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 78, max= 352, per=25.02%, avg=177.38, stdev=47.35, samples=58 iops : min= 19, max= 88, avg=43.88, stdev=11.88, samples=58 lat (msec) : 50=0.04%, 100=1.99%, 250=92.50%, 500=5.47% cpu : usr=0.32%, sys=2.18%, ctx=4352, 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=179370: Mon Aug 10 21:55:03 2026 read: IOPS=42, BW=172KiB/s (176kB/s)(5060KiB/29458msec) slat (usec): min=2748, max=49317, avg=13388.90, stdev=7185.67 clat (msec): min=39, max=309, avg=172.69, stdev=42.89 lat (msec): min=47, max=343, avg=186.08, stdev=44.78 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 79, max= 288, per=25.12%, avg=171.09, stdev=43.08, samples=58 iops : min= 19, max= 72, avg=42.34, stdev=10.81, samples=58 write: IOPS=43, BW=176KiB/s (180kB/s)(5180KiB/29458msec); 0 zone resets slat (usec): min=49, max=16727, avg=388.38, stdev=1153.19 clat (msec): min=85, max=323, avg=179.07, stdev=41.24 lat (msec): min=85, max=323, avg=179.46, stdev=41.28 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 116], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 257], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 87, max= 288, per=24.63%, avg=174.64, stdev=39.32, samples=58 iops : min= 21, max= 72, avg=43.21, stdev= 9.90, samples=58 lat (msec) : 50=0.04%, 100=1.95%, 250=92.23%, 500=5.78% cpu : usr=0.23%, sys=2.16%, ctx=4707, 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=681KiB/s (698kB/s), 169KiB/s-172KiB/s (173kB/s-176kB/s), io=19.6MiB (20.5MB), run=29417-29459msec WRITE: bw=709KiB/s (726kB/s), 176KiB/s-179KiB/s (180kB/s-183kB/s), io=20.4MiB (21.4MB), run=29417-29459msec 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=179378: Mon Aug 10 21:55:14 2026 read: IOPS=2, BW=99.3MiB/s (104MB/s)(40.0MiB/403msec) slat (nsec): min=54117k, max=54117k, avg=54117133.00, stdev= 0.00 clat (nsec): min=334610k, max=334610k, avg=334610267.00, stdev= 0.00 lat (nsec): min=388733k, max=388733k, avg=388732684.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.99%, ctx=12, 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=99.3MiB/s (104MB/s), 99.3MiB/s-99.3MiB/s (104MB/s-104MB/s), io=40.0MiB (41.9MB), run=403-403msec 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