== sanity test 398c: run fio to test AIO ================= 12:38:08 (1780331888) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.4905 s, 85.5 MB/s osc.lustre-OST0000-osc-ffff89ff02d18000.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=185265: Mon Jun 1 12:38:44 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27409msec); 0 zone resets slat (usec): min=49, max=11527, avg=336.41, stdev=822.84 clat (msec): min=9, max=286, avg=170.26, stdev=34.38 lat (msec): min=9, max=286, avg=170.60, stdev=34.39 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 251], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 253, max= 520, per=24.89%, avg=371.91, stdev=52.49, samples=54 iops : min= 63, max= 130, avg=92.65, stdev=13.12, samples=54 lat (msec) : 10=0.04%, 20=0.08%, 50=0.08%, 100=0.66%, 250=98.12% lat (msec) : 500=1.02% cpu : usr=0.24%, sys=1.24%, ctx=2673, 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=185266: Mon Jun 1 12:38:44 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27355msec); 0 zone resets slat (usec): min=51, max=13019, avg=359.48, stdev=804.09 clat (msec): min=34, max=291, avg=170.33, stdev=33.46 lat (msec): min=34, max=291, avg=170.69, stdev=33.43 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 254, max= 512, per=25.02%, avg=373.76, stdev=54.58, samples=54 iops : min= 63, max= 128, avg=93.09, stdev=13.70, samples=54 lat (msec) : 50=0.16%, 100=0.82%, 250=97.34%, 500=1.68% cpu : usr=0.16%, sys=1.29%, ctx=2883, 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=185267: Mon Jun 1 12:38:44 2026 write: IOPS=93, BW=376KiB/s (385kB/s)(10.0MiB/27269msec); 0 zone resets slat (usec): min=50, max=15011, avg=348.59, stdev=952.89 clat (msec): min=27, max=294, avg=169.92, stdev=34.34 lat (msec): min=27, max=294, avg=170.27, stdev=34.38 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 222], 95.00th=[ 234], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 296] bw ( KiB/s): min= 253, max= 520, per=25.06%, avg=374.43, stdev=61.17, samples=54 iops : min= 63, max= 130, avg=93.26, stdev=15.30, samples=54 lat (msec) : 50=0.16%, 100=1.09%, 250=97.07%, 500=1.68% cpu : usr=0.15%, sys=1.31%, ctx=2842, 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=185268: Mon Jun 1 12:38:44 2026 write: IOPS=93, BW=374KiB/s (382kB/s)(10.0MiB/27414msec); 0 zone resets slat (usec): min=50, max=17734, avg=364.87, stdev=988.57 clat (msec): min=23, max=280, avg=170.40, stdev=33.48 lat (msec): min=23, max=281, avg=170.77, stdev=33.46 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 257], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 279] bw ( KiB/s): min= 253, max= 512, per=24.86%, avg=371.48, stdev=53.55, samples=54 iops : min= 63, max= 128, avg=92.54, stdev=13.40, samples=54 lat (msec) : 50=0.08%, 100=1.21%, 250=97.19%, 500=1.52% cpu : usr=0.17%, sys=1.37%, 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 Run status group 0 (all jobs): WRITE: bw=1494KiB/s (1530kB/s), 374KiB/s-376KiB/s (382kB/s-385kB/s), io=40.0MiB (41.9MB), run=27269-27414msec 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=185282: Mon Jun 1 12:39:23 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(5048KiB/31259msec) slat (usec): min=2752, max=47614, avg=14212.22, stdev=7273.38 clat (msec): min=44, max=319, avg=183.09, stdev=42.66 lat (msec): min=52, max=347, avg=197.30, stdev=44.34 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 94, max= 263, per=25.03%, avg=160.43, stdev=36.35, samples=61 iops : min= 23, max= 65, avg=39.66, stdev= 9.05, samples=61 write: IOPS=41, BW=166KiB/s (170kB/s)(5192KiB/31259msec); 0 zone resets slat (usec): min=55, max=17966, avg=390.04, stdev=1039.53 clat (msec): min=48, max=313, avg=190.81, stdev=40.18 lat (msec): min=49, max=313, avg=191.21, stdev=40.23 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 264], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 79, max= 252, per=24.79%, avg=165.59, stdev=37.71, samples=61 iops : min= 19, max= 63, avg=40.95, stdev= 9.53, samples=61 lat (msec) : 50=0.08%, 100=0.78%, 250=91.33%, 500=7.81% cpu : usr=0.29%, sys=2.08%, 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=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=185283: Mon Jun 1 12:39:23 2026 read: IOPS=39, BW=160KiB/s (163kB/s)(4976KiB/31187msec) slat (usec): min=2756, max=46698, avg=14092.03, stdev=7358.78 clat (msec): min=20, max=363, avg=184.32, stdev=43.96 lat (msec): min=48, max=373, avg=198.42, stdev=45.58 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 71, max= 231, per=24.74%, avg=158.56, stdev=38.78, samples=61 iops : min= 17, max= 57, avg=39.18, stdev= 9.76, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5264KiB/31187msec); 0 zone resets slat (usec): min=50, max=9898, avg=307.78, stdev=629.35 clat (msec): min=100, max=319, avg=189.55, stdev=39.92 lat (msec): min=100, max=319, avg=189.86, stdev=39.94 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 95, max= 229, per=25.27%, avg=168.77, stdev=32.68, samples=61 iops : min= 23, max= 57, avg=41.74, stdev= 8.20, samples=61 lat (msec) : 50=0.12%, 100=0.39%, 250=91.37%, 500=8.12% cpu : usr=0.26%, sys=2.10%, ctx=4289, 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=185284: Mon Jun 1 12:39:23 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4984KiB/31264msec) slat (usec): min=2888, max=64352, avg=13961.59, stdev=7600.25 clat (msec): min=46, max=333, avg=183.84, stdev=44.05 lat (msec): min=53, max=351, avg=197.80, stdev=45.58 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 72, max= 240, per=24.82%, avg=159.11, stdev=40.99, samples=61 iops : min= 18, max= 60, avg=39.33, stdev=10.22, samples=61 write: IOPS=42, BW=168KiB/s (172kB/s)(5256KiB/31264msec); 0 zone resets slat (usec): min=46, max=9708, avg=351.51, stdev=767.97 clat (msec): min=96, max=309, avg=190.87, stdev=40.55 lat (msec): min=96, max=309, avg=191.22, stdev=40.57 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 71, max= 269, per=24.95%, avg=166.69, stdev=37.89, samples=61 iops : min= 17, max= 67, avg=41.23, stdev= 9.53, samples=61 lat (msec) : 50=0.04%, 100=0.82%, 250=90.62%, 500=8.52% cpu : usr=0.23%, sys=2.00%, ctx=4536, 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=185285: Mon Jun 1 12:39:23 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/31105msec) slat (usec): min=100, max=53411, avg=13922.91, stdev=7527.99 clat (msec): min=18, max=346, avg=184.80, stdev=45.76 lat (msec): min=19, max=351, avg=198.73, stdev=47.33 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 118], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 95, max= 239, per=25.36%, avg=162.56, stdev=33.12, samples=61 iops : min= 23, max= 59, avg=40.18, stdev= 8.34, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/31105msec); 0 zone resets slat (usec): min=52, max=14078, avg=372.10, stdev=959.24 clat (msec): min=68, max=347, avg=189.30, stdev=41.71 lat (msec): min=69, max=347, avg=189.68, stdev=41.69 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 86, max= 247, per=24.81%, avg=165.72, stdev=39.98, samples=61 iops : min= 21, max= 61, avg=40.98, stdev=10.03, samples=61 lat (msec) : 20=0.08%, 50=0.16%, 100=0.78%, 250=89.96%, 500=9.02% cpu : usr=0.23%, sys=1.98%, ctx=4482, 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=642KiB/s (657kB/s), 159KiB/s-163KiB/s (163kB/s-167kB/s), io=19.6MiB (20.5MB), run=31105-31264msec WRITE: bw=668KiB/s (684kB/s), 166KiB/s-169KiB/s (170kB/s-173kB/s), io=20.4MiB (21.4MB), run=31105-31264msec 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=185295: Mon Jun 1 12:39:32 2026 read: IOPS=2, BW=90.7MiB/s (95.1MB/s)(40.0MiB/441msec) slat (nsec): min=32149k, max=32149k, avg=32149438.00, stdev= 0.00 clat (nsec): min=381772k, max=381772k, avg=381772373.00, stdev= 0.00 lat (nsec): min=416900k, max=416900k, avg=416900039.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.73%, ctx=9, 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=90.7MiB/s (95.1MB/s), 90.7MiB/s-90.7MiB/s (95.1MB/s-95.1MB/s), io=40.0MiB (41.9MB), run=441-441msec 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