== sanity test 398c: run fio to test AIO ================= 11:26:57 (1772468817) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.286915 s, 146 MB/s osc.lustre-OST0000-osc-ffff9caec57b6800.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=146771: Mon Mar 2 11:28:27 2026 write: IOPS=30, BW=123KiB/s (126kB/s)(10.0MiB/83548msec); 0 zone resets slat (usec): min=22, max=7537, avg=173.79, stdev=404.22 clat (msec): min=111, max=949, avg=521.24, stdev=125.24 lat (msec): min=111, max=949, avg=521.42, stdev=125.27 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 313], 10.00th=[ 388], 20.00th=[ 435], | 30.00th=[ 468], 40.00th=[ 493], 50.00th=[ 518], 60.00th=[ 550], | 70.00th=[ 584], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 718], | 99.00th=[ 860], 99.50th=[ 927], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 323, per=24.90%, avg=121.77, stdev=33.71, samples=166 iops : min= 1, max= 80, avg=30.09, stdev= 8.42, samples=166 lat (msec) : 250=3.20%, 500=40.04%, 750=53.40%, 1000=3.36% cpu : usr=0.06%, sys=0.37%, ctx=2375, 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=146772: Mon Mar 2 11:28:27 2026 write: IOPS=30, BW=122KiB/s (125kB/s)(10.0MiB/83617msec); 0 zone resets slat (usec): min=22, max=11066, avg=196.12, stdev=527.19 clat (msec): min=122, max=999, avg=521.76, stdev=122.72 lat (msec): min=122, max=1000, avg=521.96, stdev=122.72 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 321], 10.00th=[ 393], 20.00th=[ 435], | 30.00th=[ 464], 40.00th=[ 489], 50.00th=[ 518], 60.00th=[ 550], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 718], | 99.00th=[ 852], 99.50th=[ 869], 99.90th=[ 953], 99.95th=[ 978], | 99.99th=[ 1003] bw ( KiB/s): min= 31, max= 254, per=24.87%, avg=121.63, stdev=33.21, samples=166 iops : min= 7, max= 63, avg=30.05, stdev= 8.34, samples=166 lat (msec) : 250=2.58%, 500=41.99%, 750=51.76%, 1000=3.67% cpu : usr=0.09%, sys=0.36%, ctx=2666, 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=146773: Mon Mar 2 11:28:27 2026 write: IOPS=30, BW=123KiB/s (126kB/s)(10.0MiB/83284msec); 0 zone resets slat (usec): min=22, max=8664, avg=179.10, stdev=469.19 clat (msec): min=87, max=1024, avg=520.02, stdev=128.66 lat (msec): min=87, max=1024, avg=520.20, stdev=128.67 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 309], 10.00th=[ 388], 20.00th=[ 435], | 30.00th=[ 460], 40.00th=[ 489], 50.00th=[ 518], 60.00th=[ 542], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 676], 95.00th=[ 726], | 99.00th=[ 860], 99.50th=[ 869], 99.90th=[ 1003], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 15, max= 321, per=25.02%, avg=122.34, stdev=36.89, samples=165 iops : min= 3, max= 80, avg=30.24, stdev= 9.25, samples=165 lat (msec) : 100=0.62%, 250=2.58%, 500=40.98%, 750=52.19%, 1000=3.55% lat (msec) : 2000=0.08% cpu : usr=0.09%, sys=0.36%, ctx=2529, 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=146774: Mon Mar 2 11:28:27 2026 write: IOPS=30, BW=123KiB/s (125kB/s)(10.0MiB/83574msec); 0 zone resets slat (usec): min=24, max=9928, avg=174.42, stdev=379.64 clat (msec): min=65, max=977, avg=521.55, stdev=125.92 lat (msec): min=65, max=977, avg=521.73, stdev=125.92 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 313], 10.00th=[ 393], 20.00th=[ 435], | 30.00th=[ 464], 40.00th=[ 489], 50.00th=[ 514], 60.00th=[ 550], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 676], 95.00th=[ 726], | 99.00th=[ 852], 99.50th=[ 919], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 978] bw ( KiB/s): min= 55, max= 329, per=24.90%, avg=121.75, stdev=33.85, samples=166 iops : min= 13, max= 82, avg=30.09, stdev= 8.47, samples=166 lat (msec) : 100=0.08%, 250=3.40%, 500=40.39%, 750=53.24%, 1000=2.89% cpu : usr=0.07%, sys=0.40%, ctx=2571, 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=490KiB/s (502kB/s), 122KiB/s-123KiB/s (125kB/s-126kB/s), io=40.0MiB (41.9MB), run=83284-83617msec 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=146795: Mon Mar 2 11:29:16 2026 read: IOPS=27, BW=109KiB/s (112kB/s)(5048KiB/46171msec) slat (usec): min=1545, max=23657, avg=5874.99, stdev=3038.08 clat (msec): min=6, max=350, avg=183.39, stdev=44.85 lat (msec): min=11, max=357, avg=189.28, stdev=45.48 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 321], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 207, per=25.01%, avg=108.53, stdev=35.34, samples=91 iops : min= 7, max= 51, avg=26.82, stdev= 8.84, samples=91 write: IOPS=28, BW=112KiB/s (115kB/s)(5192KiB/46171msec); 0 zone resets slat (usec): min=27, max=8316, avg=184.07, stdev=391.56 clat (msec): min=71, max=784, avg=383.65, stdev=105.04 lat (msec): min=71, max=785, avg=383.84, stdev=105.06 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 234], 10.00th=[ 259], 20.00th=[ 296], | 30.00th=[ 321], 40.00th=[ 347], 50.00th=[ 372], 60.00th=[ 401], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 523], 95.00th=[ 567], | 99.00th=[ 676], 99.50th=[ 718], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 48, max= 182, per=24.67%, avg=111.52, stdev=27.73, samples=91 iops : min= 12, max= 45, avg=27.58, stdev= 6.97, samples=91 lat (msec) : 10=0.04%, 50=0.31%, 100=0.70%, 250=48.28%, 500=43.83% lat (msec) : 750=6.76%, 1000=0.08% cpu : usr=0.15%, sys=1.02%, ctx=5135, majf=0, minf=14 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=146796: Mon Mar 2 11:29:16 2026 read: IOPS=26, BW=108KiB/s (110kB/s)(4976KiB/46186msec) slat (usec): min=1418, max=20967, avg=5873.46, stdev=3012.87 clat (msec): min=5, max=348, avg=183.17, stdev=43.47 lat (msec): min=8, max=359, avg=189.05, stdev=43.96 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 32, max= 208, per=24.61%, avg=106.80, stdev=34.80, samples=91 iops : min= 8, max= 52, avg=26.40, stdev= 8.69, samples=91 write: IOPS=28, BW=114KiB/s (117kB/s)(5264KiB/46186msec); 0 zone resets slat (usec): min=28, max=6274, avg=168.42, stdev=295.88 clat (msec): min=72, max=771, avg=381.45, stdev=104.75 lat (msec): min=72, max=771, avg=381.62, stdev=104.75 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 236], 10.00th=[ 262], 20.00th=[ 292], | 30.00th=[ 321], 40.00th=[ 351], 50.00th=[ 372], 60.00th=[ 401], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 514], 95.00th=[ 567], | 99.00th=[ 659], 99.50th=[ 701], 99.90th=[ 735], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 40, max= 223, per=25.06%, avg=113.25, stdev=30.40, samples=91 iops : min= 10, max= 55, avg=28.01, stdev= 7.59, samples=91 lat (msec) : 10=0.08%, 20=0.04%, 50=0.31%, 100=0.90%, 250=48.36% lat (msec) : 500=44.10%, 750=6.17%, 1000=0.04% cpu : usr=0.15%, sys=0.98%, ctx=5008, majf=0, minf=14 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=146797: Mon Mar 2 11:29:16 2026 read: IOPS=26, BW=108KiB/s (111kB/s)(4984KiB/46153msec) slat (usec): min=30, max=22790, avg=5824.28, stdev=3015.16 clat (msec): min=10, max=355, avg=184.67, stdev=45.12 lat (msec): min=14, max=363, avg=190.50, stdev=45.77 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 117], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 253], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 47, max= 207, per=24.80%, avg=107.65, stdev=35.49, samples=91 iops : min= 11, max= 51, avg=26.60, stdev= 8.88, samples=91 write: IOPS=28, BW=114KiB/s (117kB/s)(5256KiB/46153msec); 0 zone resets slat (usec): min=25, max=8353, avg=166.67, stdev=350.42 clat (msec): min=65, max=792, avg=380.78, stdev=108.02 lat (msec): min=66, max=792, avg=380.95, stdev=108.04 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 220], 10.00th=[ 253], 20.00th=[ 292], | 30.00th=[ 321], 40.00th=[ 347], 50.00th=[ 376], 60.00th=[ 401], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 518], 95.00th=[ 567], | 99.00th=[ 667], 99.50th=[ 718], 99.90th=[ 785], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 56, max= 215, per=24.94%, avg=112.71, stdev=27.78, samples=91 iops : min= 14, max= 53, avg=27.88, stdev= 6.92, samples=91 lat (msec) : 20=0.16%, 50=0.51%, 100=0.82%, 250=49.02%, 500=42.62% lat (msec) : 750=6.80%, 1000=0.08% cpu : usr=0.13%, sys=0.97%, ctx=4812, majf=0, minf=14 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=146798: Mon Mar 2 11:29:16 2026 read: IOPS=27, BW=110KiB/s (112kB/s)(5060KiB/46135msec) slat (usec): min=1457, max=20267, avg=5893.02, stdev=2907.95 clat (msec): min=4, max=353, avg=184.68, stdev=42.38 lat (msec): min=8, max=358, avg=190.58, stdev=42.85 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 121], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 16, max= 199, per=25.28%, avg=109.74, stdev=34.93, samples=91 iops : min= 4, max= 49, avg=27.13, stdev= 8.75, samples=91 write: IOPS=28, BW=112KiB/s (115kB/s)(5180KiB/46135msec); 0 zone resets slat (usec): min=29, max=4063, avg=177.56, stdev=309.48 clat (msec): min=54, max=735, avg=382.50, stdev=102.61 lat (msec): min=54, max=735, avg=382.68, stdev=102.62 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 239], 10.00th=[ 262], 20.00th=[ 300], | 30.00th=[ 321], 40.00th=[ 347], 50.00th=[ 372], 60.00th=[ 401], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 527], 95.00th=[ 567], | 99.00th=[ 659], 99.50th=[ 684], 99.90th=[ 726], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 64, max= 167, per=24.65%, avg=111.40, stdev=25.06, samples=91 iops : min= 16, max= 41, avg=27.55, stdev= 6.26, samples=91 lat (msec) : 10=0.04%, 50=0.12%, 100=0.82%, 250=49.30%, 500=43.36% lat (msec) : 750=6.37% cpu : usr=0.17%, sys=0.99%, ctx=5137, majf=0, minf=15 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=435KiB/s (445kB/s), 108KiB/s-110KiB/s (110kB/s-112kB/s), io=19.6MiB (20.5MB), run=46135-46186msec WRITE: bw=452KiB/s (463kB/s), 112KiB/s-114KiB/s (115kB/s-117kB/s), io=20.4MiB (21.4MB), run=46135-46186msec 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=146808: Mon Mar 2 11:29:21 2026 read: IOPS=3, BW=158MiB/s (166MB/s)(40.0MiB/253msec) slat (nsec): min=17002k, max=17002k, avg=17001917.00, stdev= 0.00 clat (nsec): min=222795k, max=222795k, avg=222795122.00, stdev= 0.00 lat (nsec): min=239801k, max=239801k, avg=239800950.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 224], 95.00th=[ 224], | 99.00th=[ 224], 99.50th=[ 224], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.56%, ctx=6, 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=158MiB/s (166MB/s), 158MiB/s-158MiB/s (166MB/s-166MB/s), io=40.0MiB (41.9MB), run=253-253msec 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