== sanity test 398c: run fio to test AIO ================= 11:42:31 (1780328551) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.566369 s, 74.1 MB/s osc.lustre-OST0000-osc-ffff98614810b000.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=182335: Mon Jun 1 11:43:11 2026 write: IOPS=90, BW=363KiB/s (371kB/s)(10.0MiB/28237msec); 0 zone resets slat (usec): min=37, max=18256, avg=238.58, stdev=811.17 clat (msec): min=80, max=312, avg=175.51, stdev=44.88 lat (msec): min=80, max=313, avg=175.75, stdev=44.89 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 126, max= 525, per=24.95%, avg=361.50, stdev=96.53, samples=56 iops : min= 31, max= 131, avg=90.00, stdev=24.13, samples=56 lat (msec) : 100=2.19%, 250=90.12%, 500=7.70% cpu : usr=0.17%, sys=1.00%, ctx=1839, 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=182336: Mon Jun 1 11:43:11 2026 write: IOPS=90, BW=362KiB/s (371kB/s)(10.0MiB/28262msec); 0 zone resets slat (usec): min=36, max=18415, avg=312.47, stdev=956.89 clat (msec): min=19, max=320, avg=175.40, stdev=44.48 lat (msec): min=20, max=321, avg=175.72, stdev=44.50 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 222, max= 578, per=24.93%, avg=361.25, stdev=83.31, samples=56 iops : min= 55, max= 144, avg=89.95, stdev=20.84, samples=56 lat (msec) : 20=0.04%, 50=0.12%, 100=2.19%, 250=90.59%, 500=7.07% cpu : usr=0.21%, sys=1.19%, ctx=2769, 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=182337: Mon Jun 1 11:43:11 2026 write: IOPS=90, BW=362KiB/s (371kB/s)(10.0MiB/28262msec); 0 zone resets slat (usec): min=35, max=14274, avg=264.02, stdev=791.56 clat (msec): min=42, max=361, avg=175.57, stdev=46.49 lat (msec): min=42, max=361, avg=175.84, stdev=46.50 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 296], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 134, max= 534, per=24.86%, avg=360.27, stdev=85.51, samples=56 iops : min= 33, max= 133, avg=89.73, stdev=21.40, samples=56 lat (msec) : 50=0.23%, 100=2.42%, 250=89.73%, 500=7.62% cpu : usr=0.13%, sys=1.20%, ctx=2605, 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=182338: Mon Jun 1 11:43:11 2026 write: IOPS=91, BW=365KiB/s (373kB/s)(10.0MiB/28075msec); 0 zone resets slat (usec): min=40, max=15329, avg=283.47, stdev=749.50 clat (msec): min=23, max=331, avg=174.97, stdev=46.25 lat (msec): min=23, max=331, avg=175.25, stdev=46.27 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 109], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 264], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 334] bw ( KiB/s): min= 229, max= 609, per=25.07%, avg=363.27, stdev=78.96, samples=55 iops : min= 57, max= 152, avg=90.45, stdev=19.75, samples=55 lat (msec) : 50=0.27%, 100=3.20%, 250=89.45%, 500=7.07% cpu : usr=0.22%, sys=1.33%, ctx=2892, 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=1449KiB/s (1484kB/s), 362KiB/s-365KiB/s (371kB/s-373kB/s), io=40.0MiB (41.9MB), run=28075-28262msec 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=182353: Mon Jun 1 11:43:49 2026 read: IOPS=44, BW=179KiB/s (184kB/s)(5048KiB/28145msec) slat (usec): min=3019, max=53944, avg=12477.24, stdev=6905.77 clat (msec): min=77, max=357, avg=165.62, stdev=44.32 lat (msec): min=82, max=381, avg=178.10, stdev=46.25 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 106], 10.00th=[ 115], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 224], 95.00th=[ 251], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 78, max= 278, per=25.01%, avg=178.31, stdev=40.51, samples=55 iops : min= 19, max= 69, avg=44.16, stdev=10.14, samples=55 write: IOPS=46, BW=184KiB/s (189kB/s)(5192KiB/28145msec); 0 zone resets slat (usec): min=38, max=14545, avg=312.54, stdev=769.60 clat (msec): min=84, max=400, avg=170.46, stdev=42.99 lat (msec): min=84, max=400, avg=170.78, stdev=43.04 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 112], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 47, max= 320, per=24.80%, avg=184.02, stdev=51.36, samples=55 iops : min= 11, max= 80, avg=45.60, stdev=12.94, samples=55 lat (msec) : 100=1.99%, 250=92.97%, 500=5.04% cpu : usr=0.26%, sys=2.06%, ctx=4486, 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=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=182354: Mon Jun 1 11:43:49 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(4976KiB/28127msec) slat (usec): min=2259, max=45881, avg=12616.61, stdev=6881.17 clat (msec): min=26, max=331, avg=165.14, stdev=45.65 lat (msec): min=31, max=350, avg=177.77, stdev=47.66 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 38, max= 295, per=24.73%, avg=176.33, stdev=45.73, samples=55 iops : min= 9, max= 73, avg=43.69, stdev=11.46, samples=55 write: IOPS=46, BW=187KiB/s (192kB/s)(5264KiB/28127msec); 0 zone resets slat (usec): min=51, max=21563, avg=301.14, stdev=782.25 clat (msec): min=84, max=354, avg=170.63, stdev=43.26 lat (msec): min=85, max=354, avg=170.93, stdev=43.25 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 330], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 79, max= 285, per=25.34%, avg=188.04, stdev=48.58, samples=55 iops : min= 19, max= 71, avg=46.60, stdev=12.23, samples=55 lat (msec) : 50=0.08%, 100=2.85%, 250=91.99%, 500=5.08% cpu : usr=0.28%, sys=2.10%, ctx=4477, 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=182355: Mon Jun 1 11:43:49 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(4984KiB/28025msec) slat (usec): min=2774, max=54586, avg=12476.05, stdev=6908.43 clat (msec): min=20, max=357, avg=163.09, stdev=44.86 lat (msec): min=35, max=374, avg=175.58, stdev=47.04 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 104], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 222], 95.00th=[ 247], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 69, max= 271, per=25.00%, avg=178.27, stdev=48.07, samples=55 iops : min= 17, max= 67, avg=44.16, stdev=12.08, samples=55 write: IOPS=46, BW=188KiB/s (192kB/s)(5256KiB/28025msec); 0 zone resets slat (usec): min=40, max=8867, avg=287.31, stdev=549.81 clat (msec): min=89, max=385, avg=171.61, stdev=44.42 lat (msec): min=89, max=385, avg=171.90, stdev=44.43 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 372], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 69, max= 279, per=25.19%, avg=186.95, stdev=47.02, samples=55 iops : min= 17, max= 69, avg=46.35, stdev=11.86, samples=55 lat (msec) : 50=0.04%, 100=2.34%, 250=93.16%, 500=4.45% cpu : usr=0.27%, sys=2.16%, ctx=4580, 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=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=182356: Mon Jun 1 11:43:49 2026 read: IOPS=45, BW=180KiB/s (185kB/s)(5060KiB/28048msec) slat (usec): min=90, max=51469, avg=12655.25, stdev=7085.74 clat (msec): min=17, max=342, avg=163.63, stdev=43.97 lat (msec): min=17, max=358, avg=176.30, stdev=46.39 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 105], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 79, max= 311, per=25.32%, avg=180.56, stdev=46.46, samples=55 iops : min= 19, max= 77, avg=44.75, stdev=11.68, samples=55 write: IOPS=46, BW=185KiB/s (189kB/s)(5180KiB/28048msec); 0 zone resets slat (usec): min=41, max=10696, avg=309.78, stdev=668.84 clat (msec): min=22, max=380, avg=173.27, stdev=43.88 lat (msec): min=23, max=381, avg=173.58, stdev=43.88 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 111], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 87, max= 286, per=24.87%, avg=184.51, stdev=39.74, samples=55 iops : min= 21, max= 71, avg=45.73, stdev=10.00, samples=55 lat (msec) : 20=0.08%, 50=0.12%, 100=2.27%, 250=93.12%, 500=4.41% cpu : usr=0.27%, sys=2.27%, ctx=4697, 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=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=713KiB/s (730kB/s), 177KiB/s-180KiB/s (181kB/s-185kB/s), io=19.6MiB (20.5MB), run=28025-28145msec WRITE: bw=742KiB/s (760kB/s), 184KiB/s-188KiB/s (189kB/s-192kB/s), io=20.4MiB (21.4MB), run=28025-28145msec 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=182364: Mon Jun 1 11:43:58 2026 read: IOPS=2, BW=88.7MiB/s (93.0MB/s)(40.0MiB/451msec) slat (nsec): min=19713k, max=19713k, avg=19713480.00, stdev= 0.00 clat (nsec): min=418325k, max=418325k, avg=418325029.00, stdev= 0.00 lat (nsec): min=438043k, max=438043k, avg=438042867.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.67%, ctx=5, 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=88.7MiB/s (93.0MB/s), 88.7MiB/s-88.7MiB/s (93.0MB/s-93.0MB/s), io=40.0MiB (41.9MB), run=451-451msec 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