== sanity test 398c: run fio to test AIO ================= 13:06:16 (1779210376) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.529917 s, 79.2 MB/s osc.lustre-OST0000-osc-ffff95d47349f000.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=179964: Tue May 19 13:06:59 2026 write: IOPS=77, BW=310KiB/s (318kB/s)(10.0MiB/33021msec); 0 zone resets slat (usec): min=38, max=26419, avg=364.15, stdev=1159.58 clat (msec): min=23, max=379, avg=205.13, stdev=44.92 lat (msec): min=25, max=379, avg=205.50, stdev=44.92 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 380] bw ( KiB/s): min= 175, max= 432, per=24.95%, avg=309.43, stdev=59.48, samples=65 iops : min= 43, max= 108, avg=77.03, stdev=14.95, samples=65 lat (msec) : 50=0.04%, 100=0.66%, 250=83.87%, 500=15.43% cpu : usr=0.15%, sys=1.07%, ctx=2405, 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=179965: Tue May 19 13:06:59 2026 write: IOPS=77, BW=310KiB/s (318kB/s)(10.0MiB/32994msec); 0 zone resets slat (usec): min=50, max=16021, avg=333.78, stdev=947.13 clat (msec): min=54, max=437, avg=205.17, stdev=48.32 lat (msec): min=54, max=437, avg=205.51, stdev=48.34 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 164, max= 464, per=25.03%, avg=310.37, stdev=59.79, samples=65 iops : min= 41, max= 116, avg=77.25, stdev=14.92, samples=65 lat (msec) : 100=0.66%, 250=85.43%, 500=13.91% cpu : usr=0.15%, sys=1.08%, ctx=2452, 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=179966: Tue May 19 13:06:59 2026 write: IOPS=77, BW=311KiB/s (318kB/s)(10.0MiB/32963msec); 0 zone resets slat (usec): min=50, max=22610, avg=335.98, stdev=1094.99 clat (msec): min=27, max=370, avg=205.52, stdev=45.99 lat (msec): min=27, max=373, avg=205.85, stdev=46.00 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 172, max= 504, per=25.02%, avg=310.29, stdev=63.61, samples=65 iops : min= 43, max= 126, avg=77.25, stdev=15.92, samples=65 lat (msec) : 50=0.04%, 250=84.65%, 500=15.31% cpu : usr=0.14%, sys=1.03%, ctx=2381, 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=179967: Tue May 19 13:06:59 2026 write: IOPS=77, BW=311KiB/s (318kB/s)(10.0MiB/32960msec); 0 zone resets slat (usec): min=50, max=12889, avg=370.65, stdev=918.24 clat (msec): min=25, max=458, avg=204.84, stdev=47.98 lat (msec): min=26, max=458, avg=205.22, stdev=47.97 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 184, max= 455, per=25.06%, avg=310.72, stdev=54.43, samples=65 iops : min= 46, max= 113, avg=77.34, stdev=13.67, samples=65 lat (msec) : 50=0.27%, 100=0.43%, 250=84.69%, 500=14.61% cpu : usr=0.15%, sys=1.17%, ctx=2775, 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=1240KiB/s (1270kB/s), 310KiB/s-311KiB/s (318kB/s-318kB/s), io=40.0MiB (41.9MB), run=32960-33021msec 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=179982: Tue May 19 13:07:41 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(5048KiB/33778msec) slat (usec): min=2934, max=57099, avg=14344.68, stdev=7485.64 clat (msec): min=68, max=335, avg=198.56, stdev=40.55 lat (msec): min=77, max=349, avg=212.91, stdev=41.96 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 80, max= 247, per=25.00%, avg=148.48, stdev=34.03, samples=67 iops : min= 20, max= 61, avg=36.61, stdev= 8.52, samples=67 write: IOPS=38, BW=154KiB/s (157kB/s)(5192KiB/33778msec); 0 zone resets slat (usec): min=54, max=17901, avg=348.45, stdev=876.40 clat (msec): min=38, max=371, avg=206.23, stdev=40.68 lat (msec): min=38, max=371, avg=206.58, stdev=40.71 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 342], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 63, max= 215, per=24.79%, avg=153.18, stdev=29.65, samples=67 iops : min= 15, max= 53, avg=37.78, stdev= 7.36, samples=67 lat (msec) : 50=0.04%, 100=0.12%, 250=87.30%, 500=12.54% cpu : usr=0.23%, sys=1.89%, ctx=4616, 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=179983: Tue May 19 13:07:41 2026 read: IOPS=36, BW=148KiB/s (151kB/s)(4976KiB/33668msec) slat (usec): min=3295, max=61922, avg=14063.12, stdev=7577.37 clat (msec): min=14, max=348, avg=197.43, stdev=43.23 lat (msec): min=29, max=367, avg=211.50, stdev=44.46 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 78, max= 215, per=24.73%, avg=146.91, stdev=36.10, samples=66 iops : min= 19, max= 53, avg=36.20, stdev= 9.04, samples=66 write: IOPS=39, BW=156KiB/s (160kB/s)(5264KiB/33668msec); 0 zone resets slat (usec): min=50, max=23144, avg=374.43, stdev=1019.64 clat (msec): min=79, max=370, avg=207.63, stdev=40.63 lat (msec): min=79, max=370, avg=208.00, stdev=40.66 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 148], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 103, max= 228, per=25.29%, avg=156.32, stdev=29.28, samples=66 iops : min= 25, max= 57, avg=38.56, stdev= 7.34, samples=66 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=86.25%, 500=13.40% cpu : usr=0.23%, sys=1.88%, ctx=4424, 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=179984: Tue May 19 13:07:41 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(4984KiB/33480msec) slat (usec): min=54, max=84615, avg=14153.62, stdev=7530.24 clat (msec): min=20, max=373, avg=198.43, stdev=45.18 lat (msec): min=20, max=381, avg=212.59, stdev=46.74 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 134], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 79, max= 231, per=25.07%, avg=148.92, stdev=36.64, samples=66 iops : min= 19, max= 57, avg=36.71, stdev= 9.16, samples=66 write: IOPS=39, BW=157KiB/s (161kB/s)(5256KiB/33480msec); 0 zone resets slat (usec): min=53, max=14009, avg=335.57, stdev=877.63 clat (msec): min=44, max=401, avg=205.19, stdev=42.06 lat (msec): min=45, max=401, avg=205.52, stdev=42.03 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 71, max= 239, per=25.29%, avg=156.29, stdev=37.67, samples=66 iops : min= 17, max= 59, avg=38.55, stdev= 9.43, samples=66 lat (msec) : 50=0.27%, 100=0.51%, 250=86.48%, 500=12.73% cpu : usr=0.24%, sys=1.85%, ctx=4448, 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=179985: Tue May 19 13:07:41 2026 read: IOPS=37, BW=150KiB/s (153kB/s)(5060KiB/33758msec) slat (usec): min=2901, max=67167, avg=14333.90, stdev=7266.21 clat (msec): min=27, max=348, avg=199.81, stdev=41.39 lat (msec): min=35, max=373, avg=214.15, stdev=42.47 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 209], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 95, max= 223, per=25.08%, avg=148.97, stdev=29.95, samples=67 iops : min= 23, max= 55, avg=36.73, stdev= 7.49, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5180KiB/33758msec); 0 zone resets slat (usec): min=56, max=22169, avg=352.15, stdev=985.68 clat (msec): min=113, max=338, avg=205.43, stdev=40.32 lat (msec): min=114, max=340, avg=205.78, stdev=40.31 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 79, max= 262, per=24.70%, avg=152.66, stdev=33.54, samples=67 iops : min= 19, max= 65, avg=37.64, stdev= 8.40, samples=67 lat (msec) : 50=0.04%, 100=0.04%, 250=87.23%, 500=12.70% cpu : usr=0.23%, sys=1.94%, ctx=4770, 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=594KiB/s (608kB/s), 148KiB/s-150KiB/s (151kB/s-153kB/s), io=19.6MiB (20.5MB), run=33480-33778msec WRITE: bw=619KiB/s (633kB/s), 153KiB/s-157KiB/s (157kB/s-161kB/s), io=20.4MiB (21.4MB), run=33480-33778msec 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=179994: Tue May 19 13:07:50 2026 read: IOPS=1, BW=74.6MiB/s (78.3MB/s)(40.0MiB/536msec) slat (nsec): min=25673k, max=25673k, avg=25672674.00, stdev= 0.00 clat (nsec): min=483998k, max=483998k, avg=483998083.00, stdev= 0.00 lat (nsec): min=509675k, max=509675k, avg=509675218.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.06%, ctx=11, 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=74.6MiB/s (78.3MB/s), 74.6MiB/s-74.6MiB/s (78.3MB/s-78.3MB/s), io=40.0MiB (41.9MB), run=536-536msec 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