== sanity test 398b: DIO and buffer IO race ============== 02:39:04 (1769758744) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.51605 s, 14.3 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=147496: Fri Jan 30 02:40:25 2026 read: IOPS=21, BW=85.6KiB/s (87.7kB/s)(5992KiB/69992msec) clat (usec): min=153, max=985083, avg=23446.21, stdev=29049.48 lat (usec): min=154, max=985086, avg=23447.53, stdev=29049.43 clat percentiles (usec): | 1.00th=[ 243], 5.00th=[ 474], 10.00th=[ 8717], 20.00th=[ 11994], | 30.00th=[ 14484], 40.00th=[ 17171], 50.00th=[ 20055], 60.00th=[ 23462], | 70.00th=[ 27919], 80.00th=[ 33424], 90.00th=[ 40633], 95.00th=[ 47449], | 99.00th=[ 74974], 99.50th=[ 86508], 99.90th=[160433], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 14, max= 160, per=25.22%, avg=85.75, stdev=25.20, samples=138 iops : min= 3, max= 40, avg=20.91, stdev= 6.33, samples=138 write: IOPS=22, BW=89.0KiB/s (92.1kB/s)(6296KiB/69992msec); 0 zone resets clat (usec): min=729, max=299330, avg=21985.07, stdev=21877.63 lat (usec): min=730, max=299331, avg=21987.02, stdev=21877.24 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1500], 10.00th=[ 2073], 20.00th=[ 3490], | 30.00th=[ 6521], 40.00th=[ 11994], 50.00th=[ 17171], 60.00th=[ 22414], | 70.00th=[ 29492], 80.00th=[ 36963], 90.00th=[ 47973], 95.00th=[ 57410], | 99.00th=[ 86508], 99.50th=[111674], 99.90th=[244319], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 16, max= 160, per=25.47%, avg=90.69, stdev=27.52, samples=137 iops : min= 4, max= 40, avg=22.15, stdev= 6.84, samples=137 lat (usec) : 250=0.65%, 500=1.95%, 750=0.55%, 1000=0.36% lat (msec) : 2=5.01%, 4=7.10%, 10=8.82%, 20=27.77%, 50=41.50% lat (msec) : 100=5.83%, 250=0.39%, 500=0.03%, 1000=0.03% cpu : usr=0.12%, sys=12.67%, ctx=7645, majf=0, minf=14 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=1498,1574,0,0 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=147497: Fri Jan 30 02:40:25 2026 read: IOPS=21, BW=85.7KiB/s (87.8kB/s)(5940KiB/69296msec) clat (usec): min=176, max=151355, avg=22936.10, stdev=14920.38 lat (usec): min=177, max=151356, avg=22937.68, stdev=14920.81 clat percentiles (usec): | 1.00th=[ 243], 5.00th=[ 545], 10.00th=[ 9372], 20.00th=[ 12387], | 30.00th=[ 14746], 40.00th=[ 16909], 50.00th=[ 19530], 60.00th=[ 22938], | 70.00th=[ 27132], 80.00th=[ 33817], 90.00th=[ 41681], 95.00th=[ 47973], | 99.00th=[ 70779], 99.50th=[ 87557], 99.90th=[127402], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 7, max= 144, per=25.30%, avg=86.01, stdev=26.56, samples=136 iops : min= 1, max= 36, avg=20.96, stdev= 6.69, samples=136 write: IOPS=22, BW=91.6KiB/s (93.8kB/s)(6348KiB/69296msec); 0 zone resets clat (usec): min=935, max=1042.7k, avg=22048.75, stdev=32890.63 lat (usec): min=936, max=1042.7k, avg=22050.19, stdev=32890.64 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1532], 10.00th=[ 2024], | 20.00th=[ 3523], 30.00th=[ 6390], 40.00th=[ 12125], | 50.00th=[ 17433], 60.00th=[ 21365], 70.00th=[ 27395], | 80.00th=[ 34866], 90.00th=[ 46924], 95.00th=[ 59507], | 99.00th=[ 90702], 99.50th=[ 103285], 99.90th=[ 217056], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 21, max= 183, per=25.74%, avg=91.63, stdev=28.02, samples=136 iops : min= 5, max= 45, avg=22.38, stdev= 6.98, samples=136 lat (usec) : 250=0.78%, 500=1.53%, 750=0.49%, 1000=0.39% lat (msec) : 2=5.14%, 4=6.54%, 10=9.77%, 20=29.36%, 50=39.55% lat (msec) : 100=5.99%, 250=0.42%, 2000=0.03% cpu : usr=0.11%, sys=12.77%, ctx=7580, majf=0, minf=15 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=1485,1587,0,0 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=147499: Fri Jan 30 02:40:25 2026 read: IOPS=21, BW=85.5KiB/s (87.6kB/s)(6028KiB/70466msec) clat (usec): min=100, max=209956, avg=22602.85, stdev=15943.37 lat (usec): min=100, max=209958, avg=22604.78, stdev=15944.41 clat percentiles (usec): | 1.00th=[ 223], 5.00th=[ 498], 10.00th=[ 7963], 20.00th=[ 11863], | 30.00th=[ 14353], 40.00th=[ 16712], 50.00th=[ 19530], 60.00th=[ 23200], | 70.00th=[ 27132], 80.00th=[ 32113], 90.00th=[ 41157], 95.00th=[ 48497], | 99.00th=[ 68682], 99.50th=[ 80217], 99.90th=[208667], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 24, max= 159, per=25.35%, avg=86.20, stdev=27.73, samples=138 iops : min= 6, max= 39, avg=21.03, stdev= 6.96, samples=138 write: IOPS=22, BW=88.8KiB/s (90.0kB/s)(6260KiB/70466msec); 0 zone resets clat (usec): min=796, max=1080.9k, avg=23093.13, stdev=34231.58 lat (usec): min=796, max=1080.9k, avg=23095.42, stdev=34231.46 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1729], 10.00th=[ 2311], | 20.00th=[ 3884], 30.00th=[ 6915], 40.00th=[ 13173], | 50.00th=[ 17957], 60.00th=[ 23462], 70.00th=[ 29230], | 80.00th=[ 35390], 90.00th=[ 48497], 95.00th=[ 61604], | 99.00th=[ 94897], 99.50th=[ 120062], 99.90th=[ 287310], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 31, max= 176, per=25.11%, avg=89.38, stdev=28.54, samples=138 iops : min= 7, max= 44, avg=21.83, stdev= 7.17, samples=138 lat (usec) : 250=0.98%, 500=1.50%, 750=0.55%, 1000=0.46% lat (msec) : 2=4.07%, 4=6.90%, 10=10.12%, 20=28.19%, 50=40.23% lat (msec) : 100=6.41%, 250=0.52%, 500=0.03%, 2000=0.03% cpu : usr=0.14%, sys=12.61%, ctx=7620, majf=0, minf=13 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=1507,1565,0,0 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=147501: Fri Jan 30 02:40:25 2026 read: IOPS=21, BW=86.3KiB/s (88.3kB/s)(6052KiB/70165msec) clat (usec): min=121, max=323878, avg=22254.61, stdev=16116.37 lat (usec): min=121, max=323878, avg=22258.51, stdev=16115.88 clat percentiles (usec): | 1.00th=[ 231], 5.00th=[ 453], 10.00th=[ 7898], 20.00th=[ 11863], | 30.00th=[ 14091], 40.00th=[ 16909], 50.00th=[ 19530], 60.00th=[ 22676], | 70.00th=[ 26608], 80.00th=[ 32637], 90.00th=[ 40109], 95.00th=[ 47973], | 99.00th=[ 65799], 99.50th=[ 74974], 99.90th=[116917], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 15, max= 168, per=25.70%, avg=87.37, stdev=26.10, samples=136 iops : min= 3, max= 42, avg=21.31, stdev= 6.55, samples=136 write: IOPS=22, BW=88.9KiB/s (91.0kB/s)(6236KiB/70165msec); 0 zone resets clat (usec): min=769, max=1061.6k, avg=23241.99, stdev=34234.17 lat (usec): min=769, max=1061.6k, avg=23243.53, stdev=34234.27 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1680], 10.00th=[ 2311], | 20.00th=[ 4047], 30.00th=[ 7177], 40.00th=[ 13173], | 50.00th=[ 17957], 60.00th=[ 23462], 70.00th=[ 28705], | 80.00th=[ 35390], 90.00th=[ 47973], 95.00th=[ 62129], | 99.00th=[ 94897], 99.50th=[ 132645], 99.90th=[ 212861], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 23, max= 168, per=25.14%, avg=89.49, stdev=26.80, samples=137 iops : min= 5, max= 42, avg=21.85, stdev= 6.73, samples=137 lat (usec) : 250=0.94%, 500=1.63%, 750=0.91%, 1000=0.52% lat (msec) : 2=3.78%, 4=6.38%, 10=10.22%, 20=28.48%, 50=40.43% lat (msec) : 100=6.22%, 250=0.42%, 500=0.03%, 2000=0.03% cpu : usr=0.11%, sys=12.80%, ctx=7635, majf=0, minf=15 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=1513,1559,0,0 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=341KiB/s (349kB/s), 85.5KiB/s-86.3KiB/s (87.6kB/s-88.3kB/s), io=23.4MiB (24.6MB), run=69296-70466msec WRITE: bw=357KiB/s (365kB/s), 88.8KiB/s-91.6KiB/s (90.0kB/s-93.8kB/s), io=24.6MiB (25.7MB), run=69296-70466msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147498: Fri Jan 30 02:41:35 2026 read: IOPS=10, BW=42.9KiB/s (43.0kB/s)(5992KiB/139576msec) clat (msec): min=3, max=981, avg=24.69, stdev=32.67 lat (msec): min=3, max=981, avg=24.69, stdev=32.67 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 34], 90.00th=[ 45], 95.00th=[ 58], | 99.00th=[ 104], 99.50th=[ 117], 99.90th=[ 309], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 135, per=25.53%, avg=43.65, stdev=25.19, samples=269 iops : min= 1, max= 33, avg=10.41, stdev= 6.32, samples=269 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6296KiB/139576msec); 0 zone resets clat (msec): min=19, max=259, avg=65.01, stdev=30.72 lat (msec): min=19, max=259, avg=65.02, stdev=30.72 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 32], 10.00th=[ 36], 20.00th=[ 41], | 30.00th=[ 46], 40.00th=[ 52], 50.00th=[ 57], 60.00th=[ 64], | 70.00th=[ 72], 80.00th=[ 86], 90.00th=[ 109], 95.00th=[ 128], | 99.00th=[ 165], 99.50th=[ 176], 99.90th=[ 253], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 7, max= 95, per=25.16%, avg=45.03, stdev=18.45, samples=274 iops : min= 1, max= 23, avg=10.75, stdev= 4.68, samples=274 lat (msec) : 4=0.03%, 10=11.20%, 20=14.03%, 50=39.42%, 100=28.32% lat (msec) : 250=6.84%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=3.80%, ctx=6280, majf=0, minf=13 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=1498,1574,0,0 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=147500: Fri Jan 30 02:41:35 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(5940KiB/140124msec) clat (msec): min=4, max=1052, avg=23.85, stdev=32.41 lat (msec): min=4, max=1052, avg=23.85, stdev=32.41 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 19], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 53], | 99.00th=[ 88], 99.50th=[ 140], 99.90th=[ 201], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 119, per=25.19%, avg=43.07, stdev=24.86, samples=270 iops : min= 1, max= 29, avg=10.26, stdev= 6.23, samples=270 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6348KiB/140124msec); 0 zone resets clat (msec): min=19, max=330, avg=65.81, stdev=33.22 lat (msec): min=19, max=330, avg=65.82, stdev=33.22 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 31], 10.00th=[ 34], 20.00th=[ 41], | 30.00th=[ 46], 40.00th=[ 52], 50.00th=[ 58], 60.00th=[ 65], | 70.00th=[ 73], 80.00th=[ 87], 90.00th=[ 109], 95.00th=[ 130], | 99.00th=[ 176], 99.50th=[ 201], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 88, per=25.12%, avg=44.96, stdev=18.77, samples=276 iops : min= 1, max= 22, avg=10.73, stdev= 4.77, samples=276 lat (msec) : 10=11.17%, 20=14.49%, 50=39.16%, 100=28.06%, 250=6.97% lat (msec) : 500=0.13%, 2000=0.03% cpu : usr=0.07%, sys=3.72%, ctx=6261, majf=0, minf=12 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=1485,1587,0,0 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=147502: Fri Jan 30 02:41:35 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(6028KiB/139645msec) clat (msec): min=4, max=155, avg=24.04, stdev=17.95 lat (msec): min=4, max=155, avg=24.05, stdev=17.95 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 45], 95.00th=[ 59], | 99.00th=[ 91], 99.50th=[ 115], 99.90th=[ 155], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 7, max= 135, per=25.32%, avg=43.29, stdev=23.98, samples=273 iops : min= 1, max= 33, avg=10.32, stdev= 6.04, samples=273 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6260KiB/139645msec); 0 zone resets clat (msec): min=19, max=1061, avg=65.92, stdev=41.33 lat (msec): min=19, max=1061, avg=65.92, stdev=41.33 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 32], 10.00th=[ 35], 20.00th=[ 41], | 30.00th=[ 46], 40.00th=[ 51], 50.00th=[ 57], 60.00th=[ 63], | 70.00th=[ 73], 80.00th=[ 87], 90.00th=[ 108], 95.00th=[ 131], | 99.00th=[ 171], 99.50th=[ 207], 99.90th=[ 330], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 87, per=24.92%, avg=44.61, stdev=19.37, samples=275 iops : min= 1, max= 21, avg=10.64, stdev= 4.92, samples=275 lat (msec) : 10=10.06%, 20=15.33%, 50=40.27%, 100=27.18%, 250=7.00% lat (msec) : 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=3.79%, ctx=6380, majf=0, minf=12 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=1507,1565,0,0 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=147503: Fri Jan 30 02:41:35 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(6052KiB/138074msec) clat (msec): min=4, max=192, avg=23.29, stdev=17.86 lat (msec): min=4, max=192, avg=23.30, stdev=17.86 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 19], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 55], | 99.00th=[ 96], 99.50th=[ 112], 99.90th=[ 144], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 7, max= 142, per=26.11%, avg=44.65, stdev=24.26, samples=266 iops : min= 1, max= 35, avg=10.65, stdev= 6.13, samples=266 write: IOPS=11, BW=45.2KiB/s (46.2kB/s)(6236KiB/138074msec); 0 zone resets clat (msec): min=20, max=1062, avg=65.81, stdev=39.75 lat (msec): min=20, max=1062, avg=65.81, stdev=39.75 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 33], 10.00th=[ 37], 20.00th=[ 42], | 30.00th=[ 46], 40.00th=[ 52], 50.00th=[ 57], 60.00th=[ 64], | 70.00th=[ 72], 80.00th=[ 86], 90.00th=[ 107], 95.00th=[ 130], | 99.00th=[ 165], 99.50th=[ 188], 99.90th=[ 288], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8, max= 88, per=25.13%, avg=44.97, stdev=18.16, samples=272 iops : min= 2, max= 22, avg=10.73, stdev= 4.61, samples=272 lat (msec) : 10=11.13%, 20=14.81%, 50=39.16%, 100=28.26%, 250=6.58% lat (msec) : 500=0.03%, 2000=0.03% cpu : usr=0.07%, sys=3.81%, ctx=6223, majf=0, minf=14 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=1513,1559,0,0 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=171KiB/s (175kB/s), 42.4KiB/s-43.8KiB/s (43.4kB/s-44.9kB/s), io=23.4MiB (24.6MB), run=138074-140124msec WRITE: bw=179KiB/s (184kB/s), 44.8KiB/s-45.3KiB/s (45.9kB/s-46.4kB/s), io=24.6MiB (25.7MB), run=138074-140124msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=147546: Fri Jan 30 02:41:55 2026 read: IOPS=24, BW=395KiB/s (405kB/s)(5920KiB/14969msec) clat (usec): min=147, max=99022, avg=20321.80, stdev=14720.76 lat (usec): min=148, max=99023, avg=20322.89, stdev=14720.75 clat percentiles (usec): | 1.00th=[ 217], 5.00th=[ 273], 10.00th=[ 412], 20.00th=[ 8160], | 30.00th=[13435], 40.00th=[15926], 50.00th=[19268], 60.00th=[22152], | 70.00th=[26084], 80.00th=[30278], 90.00th=[38011], 95.00th=[45876], | 99.00th=[64226], 99.50th=[74974], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 190, max= 670, per=24.73%, avg=393.41, stdev=119.06, samples=29 iops : min= 11, max= 41, avg=23.97, stdev= 7.50, samples=29 write: IOPS=26, BW=425KiB/s (436kB/s)(6368KiB/14969msec); 0 zone resets clat (usec): min=1298, max=204156, avg=18495.87, stdev=19916.41 lat (usec): min=1300, max=204158, avg=18498.75, stdev=19916.24 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1991], 10.00th=[ 2540], 20.00th=[ 3982], | 30.00th=[ 5276], 40.00th=[ 7570], 50.00th=[ 12125], 60.00th=[ 16319], | 70.00th=[ 22152], 80.00th=[ 31327], 90.00th=[ 44303], 95.00th=[ 54264], | 99.00th=[ 86508], 99.50th=[109577], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 158, max= 608, per=25.56%, avg=427.79, stdev=116.24, samples=29 iops : min= 9, max= 38, avg=26.14, stdev= 7.27, samples=29 lat (usec) : 250=2.08%, 500=3.12%, 750=1.82%, 1000=0.78% lat (msec) : 2=3.39%, 4=7.68%, 10=14.45%, 20=25.91%, 50=35.94% lat (msec) : 100=4.56%, 250=0.26% cpu : usr=0.15%, sys=16.48%, ctx=1879, majf=0, minf=18 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=370,398,0,0 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=147547: Fri Jan 30 02:41:55 2026 read: IOPS=23, BW=382KiB/s (391kB/s)(5744KiB/15048msec) clat (usec): min=159, max=172101, avg=22113.07, stdev=16482.55 lat (usec): min=160, max=172102, avg=22114.09, stdev=16482.61 clat percentiles (usec): | 1.00th=[ 206], 5.00th=[ 273], 10.00th=[ 562], 20.00th=[ 10945], | 30.00th=[ 14877], 40.00th=[ 17695], 50.00th=[ 20055], 60.00th=[ 23725], | 70.00th=[ 27395], 80.00th=[ 33162], 90.00th=[ 39060], 95.00th=[ 45351], | 99.00th=[ 83362], 99.50th=[101188], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 209, max= 638, per=23.98%, avg=381.59, stdev=109.57, samples=29 iops : min= 13, max= 39, avg=23.24, stdev= 6.89, samples=29 write: IOPS=27, BW=435KiB/s (445kB/s)(6544KiB/15048msec); 0 zone resets clat (usec): min=1184, max=231345, avg=17081.78, stdev=18195.64 lat (usec): min=1186, max=231347, avg=17083.73, stdev=18195.58 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 2147], 10.00th=[ 2737], 20.00th=[ 4113], | 30.00th=[ 5538], 40.00th=[ 8979], 50.00th=[ 13304], 60.00th=[ 16712], | 70.00th=[ 20317], 80.00th=[ 27132], 90.00th=[ 36439], 95.00th=[ 45351], | 99.00th=[ 69731], 99.50th=[ 80217], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 254, max= 665, per=25.48%, avg=426.59, stdev=117.80, samples=29 iops : min= 15, max= 41, avg=26.03, stdev= 7.50, samples=29 lat (usec) : 250=1.69%, 500=2.34%, 750=1.30%, 1000=0.26% lat (msec) : 2=2.21%, 4=8.59%, 10=14.45%, 20=29.17%, 50=36.46% lat (msec) : 100=2.99%, 250=0.52% cpu : usr=0.10%, sys=17.24%, ctx=2011, majf=0, minf=18 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=359,409,0,0 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=147548: Fri Jan 30 02:41:55 2026 read: IOPS=26, BW=422KiB/s (433kB/s)(6256KiB/14808msec) clat (usec): min=192, max=164467, avg=20581.33, stdev=17274.41 lat (usec): min=192, max=164468, avg=20582.71, stdev=17274.47 clat percentiles (usec): | 1.00th=[ 200], 5.00th=[ 314], 10.00th=[ 502], 20.00th=[ 10028], | 30.00th=[ 13173], 40.00th=[ 16057], 50.00th=[ 18744], 60.00th=[ 21890], | 70.00th=[ 25035], 80.00th=[ 30016], 90.00th=[ 36439], 95.00th=[ 45876], | 99.00th=[ 82314], 99.50th=[156238], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 254, max= 728, per=26.76%, avg=425.83, stdev=133.78, samples=29 iops : min= 15, max= 45, avg=26.00, stdev= 8.43, samples=29 write: IOPS=25, BW=407KiB/s (417kB/s)(6032KiB/14808msec); 0 zone resets clat (usec): min=1072, max=118884, avg=17549.52, stdev=16076.84 lat (usec): min=1073, max=118885, avg=17551.49, stdev=16076.75 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2114], 10.00th=[ 2900], 20.00th=[ 4293], | 30.00th=[ 6390], 40.00th=[ 8848], 50.00th=[ 12780], 60.00th=[ 16712], | 70.00th=[ 21627], 80.00th=[ 28181], 90.00th=[ 40109], 95.00th=[ 50070], | 99.00th=[ 70779], 99.50th=[ 74974], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 222, max= 672, per=24.18%, avg=404.72, stdev=105.66, samples=29 iops : min= 13, max= 42, avg=24.69, stdev= 6.76, samples=29 lat (usec) : 250=1.82%, 500=3.26%, 750=1.69%, 1000=0.65% lat (msec) : 2=2.86%, 4=7.03%, 10=13.80%, 20=29.30%, 50=35.42% lat (msec) : 100=3.78%, 250=0.39% cpu : usr=0.13%, sys=17.17%, ctx=2046, majf=0, minf=17 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=391,377,0,0 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=147549: Fri Jan 30 02:41:55 2026 read: IOPS=25, BW=406KiB/s (416kB/s)(6032KiB/14842msec) clat (usec): min=167, max=113732, avg=20698.51, stdev=16328.20 lat (usec): min=168, max=113734, avg=20699.48, stdev=16328.19 clat percentiles (usec): | 1.00th=[ 210], 5.00th=[ 310], 10.00th=[ 453], 20.00th=[ 3687], | 30.00th=[ 13435], 40.00th=[ 16319], 50.00th=[ 19006], 60.00th=[ 22938], | 70.00th=[ 25560], 80.00th=[ 31851], 90.00th=[ 39060], 95.00th=[ 47973], | 99.00th=[ 80217], 99.50th=[110625], 99.90th=[113771], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 184, max= 699, per=25.38%, avg=403.83, stdev=130.65, samples=29 iops : min= 11, max= 43, avg=24.62, stdev= 8.18, samples=29 write: IOPS=26, BW=422KiB/s (432kB/s)(6256KiB/14842msec); 0 zone resets clat (usec): min=1245, max=117077, avg=17849.09, stdev=17789.20 lat (usec): min=1246, max=117077, avg=17851.53, stdev=17789.51 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2278], 10.00th=[ 3032], 20.00th=[ 4113], | 30.00th=[ 5538], 40.00th=[ 7963], 50.00th=[ 11731], 60.00th=[ 16909], | 70.00th=[ 22152], 80.00th=[ 29754], 90.00th=[ 38536], 95.00th=[ 51643], | 99.00th=[ 86508], 99.50th=[113771], 99.90th=[116917], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 192, max= 672, per=25.14%, avg=420.90, stdev=131.35, samples=29 iops : min= 12, max= 42, avg=25.69, stdev= 8.32, samples=29 lat (usec) : 250=1.43%, 500=4.30%, 750=1.82%, 1000=0.65% lat (msec) : 2=2.60%, 4=8.72%, 10=15.36%, 20=25.26%, 50=34.51% lat (msec) : 100=4.82%, 250=0.52% cpu : usr=0.09%, sys=16.85%, ctx=1935, majf=0, minf=17 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=377,391,0,0 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=1592KiB/s (1630kB/s), 382KiB/s-422KiB/s (391kB/s-433kB/s), io=23.4MiB (24.5MB), run=14808-15048msec WRITE: bw=1675KiB/s (1715kB/s), 407KiB/s-435KiB/s (417kB/s-445kB/s), io=24.6MiB (25.8MB), run=14808-15048msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147541: Fri Jan 30 02:42:15 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5920KiB/35047msec) clat (msec): min=5, max=230, avg=22.08, stdev=18.95 lat (msec): min=5, max=230, avg=22.08, stdev=18.95 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 32], 90.00th=[ 41], 95.00th=[ 53], | 99.00th=[ 86], 99.50th=[ 105], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 31, max= 415, per=25.24%, avg=169.38, stdev=85.23, samples=68 iops : min= 1, max= 25, avg= 9.96, stdev= 5.35, samples=68 write: IOPS=11, BW=182KiB/s (186kB/s)(6368KiB/35047msec); 0 zone resets clat (msec): min=25, max=264, avg=67.43, stdev=31.64 lat (msec): min=25, max=264, avg=67.43, stdev=31.64 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 35], 10.00th=[ 39], 20.00th=[ 44], | 30.00th=[ 50], 40.00th=[ 55], 50.00th=[ 60], 60.00th=[ 68], | 70.00th=[ 74], 80.00th=[ 84], 90.00th=[ 105], 95.00th=[ 123], | 99.00th=[ 199], 99.50th=[ 257], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 63, max= 288, per=25.55%, avg=180.36, stdev=60.61, samples=69 iops : min= 3, max= 18, avg=10.65, stdev= 3.83, samples=69 lat (msec) : 10=9.24%, 20=21.35%, 50=30.60%, 100=32.68%, 250=5.86% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=3.62%, ctx=1511, majf=0, minf=13 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=370,398,0,0 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=147542: Fri Jan 30 02:42:15 2026 read: IOPS=10, BW=161KiB/s (165kB/s)(5744KiB/35662msec) clat (msec): min=5, max=185, avg=22.51, stdev=20.81 lat (msec): min=5, max=185, avg=22.51, stdev=20.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 43], 95.00th=[ 59], | 99.00th=[ 120], 99.50th=[ 138], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 31, max= 414, per=24.16%, avg=162.13, stdev=88.65, samples=69 iops : min= 1, max= 25, avg= 9.52, stdev= 5.57, samples=69 write: IOPS=11, BW=184KiB/s (188kB/s)(6544KiB/35662msec); 0 zone resets clat (msec): min=21, max=217, avg=67.27, stdev=29.16 lat (msec): min=21, max=217, avg=67.27, stdev=29.16 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 36], 10.00th=[ 40], 20.00th=[ 46], | 30.00th=[ 52], 40.00th=[ 56], 50.00th=[ 61], 60.00th=[ 66], | 70.00th=[ 73], 80.00th=[ 86], 90.00th=[ 102], 95.00th=[ 134], | 99.00th=[ 165], 99.50th=[ 184], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 352, per=25.74%, avg=181.76, stdev=63.91, samples=70 iops : min= 1, max= 22, avg=10.76, stdev= 4.07, samples=70 lat (msec) : 10=9.77%, 20=20.70%, 50=27.21%, 100=36.33%, 250=5.99% cpu : usr=0.05%, sys=3.75%, ctx=1595, majf=0, minf=11 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=359,409,0,0 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=147543: Fri Jan 30 02:42:15 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(6256KiB/34724msec) clat (msec): min=6, max=166, avg=22.07, stdev=19.04 lat (msec): min=6, max=166, avg=22.07, stdev=19.04 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 30], 90.00th=[ 42], 95.00th=[ 61], | 99.00th=[ 94], 99.50th=[ 148], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 31, max= 448, per=28.35%, avg=190.22, stdev=103.08, samples=65 iops : min= 1, max= 28, avg=11.26, stdev= 6.53, samples=65 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34724msec); 0 zone resets clat (msec): min=25, max=204, avg=68.96, stdev=30.40 lat (msec): min=25, max=204, avg=68.96, stdev=30.40 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 35], 10.00th=[ 40], 20.00th=[ 46], | 30.00th=[ 51], 40.00th=[ 56], 50.00th=[ 63], 60.00th=[ 69], | 70.00th=[ 77], 80.00th=[ 89], 90.00th=[ 105], 95.00th=[ 134], | 99.00th=[ 184], 99.50th=[ 190], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 63, max= 287, per=24.41%, avg=172.31, stdev=57.81, samples=68 iops : min= 3, max= 17, avg=10.16, stdev= 3.64, samples=68 lat (msec) : 10=10.68%, 20=20.83%, 50=30.73%, 100=31.64%, 250=6.12% cpu : usr=0.07%, sys=3.98%, ctx=1673, majf=0, minf=12 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=391,377,0,0 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=147545: Fri Jan 30 02:42:15 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35017msec) clat (msec): min=5, max=227, avg=22.34, stdev=20.24 lat (msec): min=5, max=227, avg=22.34, stdev=20.24 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 41], 95.00th=[ 66], | 99.00th=[ 94], 99.50th=[ 109], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 31, max= 447, per=25.40%, avg=170.41, stdev=96.58, samples=69 iops : min= 1, max= 27, avg=10.03, stdev= 6.01, samples=69 write: IOPS=11, BW=179KiB/s (183kB/s)(6256KiB/35017msec); 0 zone resets clat (msec): min=26, max=311, avg=67.82, stdev=32.47 lat (msec): min=26, max=311, avg=67.82, stdev=32.47 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 36], 10.00th=[ 40], 20.00th=[ 45], | 30.00th=[ 50], 40.00th=[ 54], 50.00th=[ 59], 60.00th=[ 66], | 70.00th=[ 74], 80.00th=[ 86], 90.00th=[ 109], 95.00th=[ 123], | 99.00th=[ 199], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 320, per=25.21%, avg=177.96, stdev=62.71, samples=69 iops : min= 1, max= 20, avg=10.51, stdev= 4.00, samples=69 lat (msec) : 10=9.51%, 20=20.96%, 50=30.99%, 100=31.77%, 250=6.51% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=3.89%, ctx=1603, majf=0, minf=13 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=377,391,0,0 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=672KiB/s (688kB/s), 161KiB/s-180KiB/s (165kB/s-184kB/s), io=23.4MiB (24.5MB), run=34724-35662msec WRITE: bw=707KiB/s (724kB/s), 174KiB/s-184KiB/s (178kB/s-188kB/s), io=24.6MiB (25.8MB), run=34724-35662msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=147565: Fri Jan 30 02:42:24 2026 read: IOPS=2, BW=2053KiB/s (2102kB/s)(7168KiB/3492msec) clat (usec): min=820, max=286854, avg=146676.85, stdev=100513.01 lat (usec): min=821, max=286855, avg=146678.12, stdev=100513.19 clat percentiles (usec): | 1.00th=[ 824], 5.00th=[ 824], 10.00th=[ 824], 20.00th=[ 58983], | 30.00th=[115868], 40.00th=[115868], 50.00th=[131597], 60.00th=[191890], | 70.00th=[191890], 80.00th=[240124], 90.00th=[287310], 95.00th=[287310], | 99.00th=[287310], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 2043, max= 6035, per=68.87%, avg=3375.33, stdev=2303.34, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1466KiB/s (1501kB/s)(5120KiB/3492msec); 0 zone resets clat (msec): min=164, max=1201, avg=464.64, stdev=433.23 lat (msec): min=164, max=1202, avg=464.78, stdev=433.39 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 230], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 2043, max= 4096, per=44.73%, avg=3069.50, stdev=1451.69, samples=2 iops : min= 1, max= 4, avg= 2.50, stdev= 2.12, samples=2 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=58.33%, 500=8.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=24.95%, ctx=611, majf=0, minf=14 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=7,5,0,0 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=147566: Fri Jan 30 02:42:24 2026 read: IOPS=0, BW=490KiB/s (502kB/s)(2048KiB/4178msec) clat (msec): min=308, max=1370, avg=839.20, stdev=750.98 lat (msec): min=308, max=1370, avg=839.21, stdev=750.98 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 1368], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 2039, max= 2048, per=41.70%, avg=2043.50, stdev= 6.36, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2451KiB/s (2510kB/s)(10.0MiB/4178msec); 0 zone resets clat (msec): min=90, max=780, avg=245.24, stdev=207.30 lat (msec): min=90, max=780, avg=245.31, stdev=207.28 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 92], | 30.00th=[ 114], 40.00th=[ 138], 50.00th=[ 186], 60.00th=[ 192], | 70.00th=[ 222], 80.00th=[ 266], 90.00th=[ 376], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 2048, max= 8192, per=67.12%, avg=4605.75, stdev=2577.61, samples=4 iops : min= 2, max= 8, avg= 4.25, stdev= 2.63, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=25.81%, ctx=551, majf=0, minf=13 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=2,10,0,0 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=147567: Fri Jan 30 02:42:24 2026 read: IOPS=1, BW=1789KiB/s (1832kB/s)(6144KiB/3435msec) clat (usec): min=884, max=237401, avg=80908.20, stdev=101684.16 lat (usec): min=886, max=237402, avg=80909.36, stdev=101684.01 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 889], 10.00th=[ 889], 20.00th=[ 963], | 30.00th=[ 963], 40.00th=[ 12649], 50.00th=[ 12649], 60.00th=[ 56886], | 70.00th=[177210], 80.00th=[177210], 90.00th=[238027], 95.00th=[238027], | 99.00th=[238027], 99.50th=[238027], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 2048, max= 4096, per=62.68%, avg=3072.00, stdev=1448.15, samples=2 iops : min= 2, max= 4, avg= 3.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1789KiB/s (1832kB/s)(6144KiB/3435msec); 0 zone resets clat (msec): min=105, max=1765, avg=457.82, stdev=642.88 lat (msec): min=105, max=1765, avg=457.89, stdev=642.88 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 194], 50.00th=[ 194], 60.00th=[ 251], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 2000, max= 4096, per=39.56%, avg=2714.67, stdev=1196.51, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 1000=16.67% lat (msec) : 20=8.33%, 100=8.33%, 250=41.67%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=22.36%, ctx=340, majf=0, minf=13 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=6,6,0,0 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=147568: Fri Jan 30 02:42:24 2026 read: IOPS=1, BW=1281KiB/s (1312kB/s)(5120KiB/3996msec) clat (usec): min=1091, max=194723, avg=113082.98, stdev=102346.55 lat (usec): min=1092, max=194724, avg=113083.83, stdev=102346.52 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1090], 10.00th=[ 1090], 20.00th=[ 1090], | 30.00th=[ 1139], 40.00th=[ 1139], 50.00th=[179307], 60.00th=[179307], | 70.00th=[187696], 80.00th=[187696], 90.00th=[193987], 95.00th=[193987], | 99.00th=[193987], 99.50th=[193987], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 2048, max= 6144, per=83.57%, avg=4096.00, stdev=2896.31, samples=2 iops : min= 2, max= 6, avg= 4.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1794KiB/s (1837kB/s)(7168KiB/3996msec); 0 zone resets clat (msec): min=105, max=1574, avg=471.72, stdev=512.35 lat (msec): min=106, max=1574, avg=471.87, stdev=512.35 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 167], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 279], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 592], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 2043, max= 4096, per=39.77%, avg=2729.00, stdev=1183.86, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 2=16.67%, 250=50.00%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=23.30%, ctx=442, majf=0, minf=15 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=5,7,0,0 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=4902KiB/s (5020kB/s), 490KiB/s-2053KiB/s (502kB/s-2102kB/s), io=20.0MiB (20.0MB), run=3435-4178msec WRITE: bw=6863KiB/s (7027kB/s), 1466KiB/s-2451KiB/s (1501kB/s-2510kB/s), io=28.0MiB (29.4MB), run=3435-4178msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147561: Fri Jan 30 02:42:25 2026 read: IOPS=2, BW=2091KiB/s (2141kB/s)(7168KiB/3428msec) clat (msec): min=51, max=293, avg=147.09, stdev=94.15 lat (msec): min=51, max=293, avg=147.10, stdev=94.15 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 65], | 30.00th=[ 67], 40.00th=[ 67], 50.00th=[ 155], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 243], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1988, max= 5555, per=84.12%, avg=3764.33, stdev=1783.54, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1494KiB/s (1529kB/s)(5120KiB/3428msec); 0 zone resets clat (msec): min=96, max=1195, avg=456.83, stdev=429.20 lat (msec): min=96, max=1195, avg=456.92, stdev=429.18 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1875, max= 4096, per=42.35%, avg=2653.00, stdev=1250.95, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=33.33%, 250=33.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=9.19%, ctx=96, majf=0, minf=13 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=7,5,0,0 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=147562: Fri Jan 30 02:42:25 2026 read: IOPS=0, BW=448KiB/s (459kB/s)(2048KiB/4567msec) clat (msec): min=97, max=1388, avg=743.10, stdev=913.10 lat (msec): min=97, max=1388, avg=743.10, stdev=913.10 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 97], 60.00th=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 2039, max= 2048, per=45.66%, avg=2043.50, stdev= 6.36, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2242KiB/s (2296kB/s)(10.0MiB/4567msec); 0 zone resets clat (msec): min=91, max=538, avg=294.03, stdev=179.13 lat (msec): min=91, max=538, avg=294.16, stdev=179.10 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 101], 40.00th=[ 126], 50.00th=[ 330], 60.00th=[ 334], | 70.00th=[ 368], 80.00th=[ 447], 90.00th=[ 518], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1875, max= 4096, per=39.93%, avg=2501.75, stdev=1065.25, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 lat (msec) : 100=25.00%, 250=16.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.07%, sys=10.34%, ctx=183, majf=0, minf=14 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=2,10,0,0 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=147563: Fri Jan 30 02:42:25 2026 read: IOPS=1, BW=1343KiB/s (1375kB/s)(6144KiB/4576msec) clat (msec): min=51, max=558, avg=216.71, stdev=206.40 lat (msec): min=51, max=558, avg=216.72, stdev=206.40 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 60], | 30.00th=[ 60], 40.00th=[ 70], 50.00th=[ 70], 60.00th=[ 197], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1988, max= 2048, per=45.09%, avg=2018.00, stdev=42.43, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1343KiB/s (1375kB/s)(6144KiB/4576msec); 0 zone resets clat (msec): min=123, max=1432, avg=542.76, stdev=564.43 lat (msec): min=123, max=1432, avg=542.87, stdev=564.49 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 372], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1906, max= 3750, per=40.99%, avg=2568.00, stdev=1026.10, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=25.00%, 250=33.33%, 500=16.67%, 750=8.33%, 2000=16.67% cpu : usr=0.02%, sys=5.55%, ctx=58, majf=0, minf=13 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=6,6,0,0 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=147564: Fri Jan 30 02:42:25 2026 read: IOPS=1, BW=1156KiB/s (1183kB/s)(5120KiB/4430msec) clat (msec): min=44, max=384, avg=157.33, stdev=133.87 lat (msec): min=44, max=384, avg=157.33, stdev=133.87 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 45], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 3976, max= 4096, per=90.19%, avg=4036.00, stdev=84.85, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1618KiB/s (1657kB/s)(7168KiB/4430msec); 0 zone resets clat (msec): min=214, max=1518, avg=513.51, stdev=457.85 lat (msec): min=214, max=1518, avg=513.58, stdev=457.84 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 253], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 363], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 567], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 2048, max= 4096, per=52.64%, avg=3298.00, stdev=1096.27, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=8.96%, ctx=142, majf=0, minf=14 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=5,7,0,0 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=4476KiB/s (4583kB/s), 448KiB/s-2091KiB/s (459kB/s-2141kB/s), io=20.0MiB (20.0MB), run=3428-4576msec WRITE: bw=6266KiB/s (6416kB/s), 1343KiB/s-2242KiB/s (1375kB/s-2296kB/s), io=28.0MiB (29.4MB), run=3428-4576msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=147576: Fri Jan 30 02:42:31 2026 read: IOPS=1, BW=6314KiB/s (6466kB/s)(12.0MiB/1946msec) clat (msec): min=341, max=917, avg=641.54, stdev=288.38 lat (msec): min=341, max=917, avg=641.54, stdev=288.38 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=8.17%, ctx=48, majf=0, minf=10 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=3,0,0,0 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=147578: Fri Jan 30 02:42:31 2026 read: IOPS=0, BW=2023KiB/s (2071kB/s)(4096KiB/2025msec) clat (nsec): min=625610k, max=625610k, avg=625609634.00, stdev= 0.00 lat (nsec): min=625612k, max=625612k, avg=625611619.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=4045KiB/s (4143kB/s)(8192KiB/2025msec); 0 zone resets clat (msec): min=188, max=1176, avg=682.47, stdev=697.97 lat (msec): min=189, max=1176, avg=682.76, stdev=697.93 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.26%, ctx=48, majf=0, minf=13 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=1,2,0,0 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=147579: Fri Jan 30 02:42:31 2026 write: IOPS=2, BW=10.4MiB/s (10.9MB/s)(12.0MiB/1154msec); 0 zone resets clat (msec): min=181, max=723, avg=373.47, stdev=303.90 lat (msec): min=181, max=724, avg=373.91, stdev=303.99 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min=10937, max=10937, per=67.59%, avg=10937.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 750=33.33% cpu : usr=0.17%, sys=12.84%, ctx=76, majf=0, minf=10 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=0,3,0,0 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=147581: Fri Jan 30 02:42:31 2026 write: IOPS=2, BW=8376KiB/s (8577kB/s)(12.0MiB/1467msec); 0 zone resets clat (msec): min=205, max=874, avg=465.80, stdev=358.42 lat (msec): min=208, max=874, avg=466.65, stdev=357.71 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min=11100, max=11100, per=68.60%, avg=11100.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=13.30%, ctx=60, majf=0, minf=11 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=0,3,0,0 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=8091KiB/s (8285kB/s), 2023KiB/s-6314KiB/s (2071kB/s-6466kB/s), io=16.0MiB (16.8MB), run=1946-2025msec WRITE: bw=15.8MiB/s (16.6MB/s), 4045KiB/s-10.4MiB/s (4143kB/s-10.9MB/s), io=32.0MiB (33.6MB), run=1154-2025msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147575: Fri Jan 30 02:42:31 2026 read: IOPS=1, BW=8074KiB/s (8267kB/s)(12.0MiB/1522msec) clat (msec): min=397, max=546, avg=480.49, stdev=76.00 lat (msec): min=397, max=546, avg=480.49, stdev=76.00 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 6660, max= 8159, per=97.87%, avg=7409.50, stdev=1059.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=35.70%, ctx=1508, 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=3,0,0,0 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=147577: Fri Jan 30 02:42:31 2026 read: IOPS=0, BW=1893KiB/s (1938kB/s)(4096KiB/2164msec) clat (nsec): min=473768k, max=473768k, avg=473767857.00, stdev= 0.00 lat (nsec): min=473771k, max=473771k, avg=473770806.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7001, max= 7001, per=92.47%, avg=7001.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3786KiB/s (3876kB/s)(8192KiB/2164msec); 0 zone resets clat (msec): min=178, max=1435, avg=807.01, stdev=889.10 lat (msec): min=178, max=1435, avg=807.33, stdev=889.05 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8175, max= 8175, per=55.04%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=16.55%, ctx=584, majf=0, minf=11 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=1,2,0,0 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=147580: Fri Jan 30 02:42:31 2026 write: IOPS=1, BW=5570KiB/s (5704kB/s)(12.0MiB/2206msec); 0 zone resets clat (msec): min=348, max=1058, avg=697.17, stdev=355.01 lat (msec): min=350, max=1058, avg=697.91, stdev=354.45 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8175, max= 8175, per=55.04%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.80%, ctx=69, 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=0,3,0,0 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=147582: Fri Jan 30 02:42:31 2026 write: IOPS=1, BW=7054KiB/s (7223kB/s)(12.0MiB/1742msec); 0 zone resets clat (msec): min=519, max=592, avg=562.23, stdev=37.75 lat (msec): min=520, max=592, avg=562.51, stdev=37.81 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 6420, max= 8175, per=49.13%, avg=7297.50, stdev=1240.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=17.06%, ctx=79, 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=0,3,0,0 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=7571KiB/s (7753kB/s), 1893KiB/s-8074KiB/s (1938kB/s-8267kB/s), io=16.0MiB (16.8MB), run=1522-2164msec WRITE: bw=14.5MiB/s (15.2MB/s), 3786KiB/s-7054KiB/s (3876kB/s-7223kB/s), io=32.0MiB (33.6MB), run=1742-2206msec