== sanity test 398c: run fio to test AIO ================= 16:57:24 (1787864244) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.432574 s, 97.0 MB/s osc.lustre-OST0000-osc-ffff8f6b2d7ed000.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=180499: Thu Aug 27 16:58:03 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30415msec); 0 zone resets slat (usec): min=28, max=23917, avg=245.06, stdev=947.03 clat (msec): min=16, max=370, avg=189.50, stdev=44.08 lat (msec): min=17, max=371, avg=189.74, stdev=44.02 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 266], | 99.00th=[ 300], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 225, max= 512, per=25.02%, avg=336.82, stdev=78.03, samples=60 iops : min= 56, max= 128, avg=83.77, stdev=19.54, samples=60 lat (msec) : 20=0.08%, 50=0.08%, 100=1.25%, 250=89.18%, 500=9.41% cpu : usr=0.16%, sys=0.85%, ctx=1920, 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=180500: Thu Aug 27 16:58:03 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30413msec); 0 zone resets slat (usec): min=28, max=20722, avg=240.14, stdev=821.54 clat (msec): min=17, max=333, avg=188.74, stdev=42.44 lat (msec): min=17, max=333, avg=188.98, stdev=42.40 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 334] bw ( KiB/s): min= 183, max= 517, per=25.03%, avg=336.93, stdev=67.98, samples=60 iops : min= 45, max= 129, avg=83.77, stdev=17.06, samples=60 lat (msec) : 20=0.04%, 50=0.16%, 100=0.12%, 250=90.12%, 500=9.57% cpu : usr=0.16%, sys=1.01%, ctx=2552, 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=180501: Thu Aug 27 16:58:03 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30411msec); 0 zone resets slat (usec): min=29, max=19876, avg=285.63, stdev=1069.60 clat (msec): min=23, max=321, avg=188.83, stdev=43.40 lat (msec): min=23, max=321, avg=189.12, stdev=43.35 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 191, max= 512, per=24.94%, avg=335.72, stdev=75.40, samples=60 iops : min= 47, max= 128, avg=83.47, stdev=18.95, samples=60 lat (msec) : 50=0.08%, 100=0.39%, 250=89.92%, 500=9.61% cpu : usr=0.18%, sys=0.98%, ctx=2683, 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=180502: Thu Aug 27 16:58:03 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30293msec); 0 zone resets slat (usec): min=29, max=30267, avg=258.20, stdev=1003.31 clat (msec): min=33, max=382, avg=188.87, stdev=44.15 lat (msec): min=33, max=382, avg=189.13, stdev=44.09 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 127], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 250, max= 517, per=25.02%, avg=336.83, stdev=68.40, samples=60 iops : min= 62, max= 129, avg=83.77, stdev=17.09, samples=60 lat (msec) : 50=0.12%, 100=0.23%, 250=90.74%, 500=8.91% cpu : usr=0.18%, sys=1.00%, ctx=2698, 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=1347KiB/s (1379kB/s), 337KiB/s-338KiB/s (345kB/s-346kB/s), io=40.0MiB (41.9MB), run=30293-30415msec 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=180517: Thu Aug 27 16:58:45 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(5048KiB/33914msec) slat (usec): min=2670, max=71231, avg=14003.64, stdev=8250.17 clat (msec): min=11, max=452, avg=201.30, stdev=58.61 lat (msec): min=22, max=459, avg=215.32, stdev=61.22 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 224], 80.00th=[ 247], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 380], 99.50th=[ 393], 99.90th=[ 405], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 71, max= 239, per=25.05%, avg=148.06, stdev=38.11, samples=67 iops : min= 17, max= 59, avg=36.58, stdev= 9.60, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5192KiB/33914msec); 0 zone resets slat (usec): min=28, max=8498, avg=207.32, stdev=592.63 clat (msec): min=48, max=455, avg=206.26, stdev=54.72 lat (msec): min=48, max=455, avg=206.47, stdev=54.69 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 372], 99.50th=[ 414], 99.90th=[ 443], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 63, max= 264, per=24.77%, avg=152.60, stdev=40.03, samples=67 iops : min= 15, max= 66, avg=37.72, stdev=10.04, samples=67 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=80.43%, 500=19.18% cpu : usr=0.24%, sys=1.65%, ctx=4586, 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=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=180518: Thu Aug 27 16:58:45 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(4976KiB/33899msec) slat (usec): min=2712, max=70308, avg=13973.45, stdev=7992.04 clat (msec): min=32, max=472, avg=201.51, stdev=57.20 lat (msec): min=49, max=477, avg=215.49, stdev=59.39 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 127], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 224], 80.00th=[ 247], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 456], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 71, max= 256, per=24.69%, avg=145.91, stdev=40.67, samples=67 iops : min= 17, max= 64, avg=36.04, stdev=10.19, samples=67 write: IOPS=38, BW=155KiB/s (159kB/s)(5264KiB/33899msec); 0 zone resets slat (usec): min=35, max=12665, avg=200.52, stdev=616.79 clat (msec): min=29, max=472, avg=206.30, stdev=53.66 lat (msec): min=29, max=472, avg=206.50, stdev=53.68 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 393], 99.90th=[ 451], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 47, max= 263, per=25.18%, avg=155.09, stdev=42.46, samples=67 iops : min= 11, max= 65, avg=38.34, stdev=10.68, samples=67 lat (msec) : 50=0.08%, 100=0.23%, 250=81.45%, 500=18.24% cpu : usr=0.27%, sys=1.45%, ctx=4349, 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=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=180519: Thu Aug 27 16:58:45 2026 read: IOPS=36, BW=148KiB/s (151kB/s)(4984KiB/33788msec) slat (usec): min=29, max=71651, avg=13948.37, stdev=8283.31 clat (msec): min=99, max=432, avg=201.31, stdev=54.38 lat (msec): min=100, max=452, avg=215.27, stdev=56.93 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 245], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 63, max= 224, per=24.83%, avg=146.72, stdev=41.45, samples=67 iops : min= 15, max= 56, avg=36.24, stdev=10.42, samples=67 write: IOPS=38, BW=156KiB/s (159kB/s)(5256KiB/33788msec); 0 zone resets slat (usec): min=33, max=10633, avg=226.00, stdev=641.87 clat (msec): min=69, max=498, avg=206.60, stdev=55.62 lat (msec): min=71, max=498, avg=206.83, stdev=55.64 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 249], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 422], 99.90th=[ 489], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 79, max= 232, per=25.06%, avg=154.34, stdev=39.13, samples=67 iops : min= 19, max= 58, avg=38.15, stdev= 9.80, samples=67 lat (msec) : 100=0.27%, 250=81.33%, 500=18.40% cpu : usr=0.25%, sys=1.56%, ctx=4514, 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=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=180520: Thu Aug 27 16:58:45 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(5060KiB/33876msec) slat (usec): min=2770, max=56424, avg=14028.74, stdev=8043.46 clat (msec): min=32, max=406, avg=201.53, stdev=56.58 lat (msec): min=49, max=426, avg=215.57, stdev=59.00 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 126], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 226], 80.00th=[ 247], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 71, max= 247, per=25.17%, avg=148.76, stdev=36.59, samples=67 iops : min= 17, max= 61, avg=36.76, stdev= 9.23, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5180KiB/33876msec); 0 zone resets slat (usec): min=30, max=21468, avg=237.89, stdev=922.16 clat (msec): min=33, max=467, avg=205.94, stdev=55.96 lat (msec): min=33, max=467, avg=206.18, stdev=56.00 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 376], 99.50th=[ 397], 99.90th=[ 443], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 48, max= 263, per=24.75%, avg=152.46, stdev=43.56, samples=67 iops : min= 12, max= 65, avg=37.69, stdev=10.91, samples=67 lat (msec) : 50=0.08%, 100=0.31%, 250=80.23%, 500=19.38% cpu : usr=0.24%, sys=1.53%, ctx=4783, 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=592KiB/s (606kB/s), 147KiB/s-149KiB/s (150kB/s-153kB/s), io=19.6MiB (20.5MB), run=33788-33914msec WRITE: bw=616KiB/s (631kB/s), 153KiB/s-156KiB/s (157kB/s-159kB/s), io=20.4MiB (21.4MB), run=33788-33914msec 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=180529: Thu Aug 27 16:58:56 2026 read: IOPS=1, BW=66.8MiB/s (70.0MB/s)(40.0MiB/599msec) slat (nsec): min=21088k, max=21088k, avg=21087569.00, stdev= 0.00 clat (nsec): min=540350k, max=540350k, avg=540349773.00, stdev= 0.00 lat (nsec): min=561442k, max=561442k, avg=561441606.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.01%, ctx=8, 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=66.8MiB/s (70.0MB/s), 66.8MiB/s-66.8MiB/s (70.0MB/s-70.0MB/s), io=40.0MiB (41.9MB), run=599-599msec 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