== sanity test 398b: DIO and buffer IO race ============== 22:38:19 (1789612699) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.41318 s, 9.3 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=174486: Wed Sep 16 22:40:24 2026 read: IOPS=14, BW=56.9KiB/s (58.2kB/s)(5992KiB/105390msec) clat (usec): min=33, max=216287, avg=32538.21, stdev=23920.91 lat (usec): min=34, max=216288, avg=32546.19, stdev=23923.82 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 85], 20.00th=[ 14877], | 30.00th=[ 19006], 40.00th=[ 23200], 50.00th=[ 27919], 60.00th=[ 33162], | 70.00th=[ 40109], 80.00th=[ 50070], 90.00th=[ 63177], 95.00th=[ 74974], | 99.00th=[106431], 99.50th=[130548], 99.90th=[166724], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 7, max= 136, per=25.46%, avg=57.02, stdev=24.80, samples=206 iops : min= 1, max= 34, avg=13.63, stdev= 6.25, samples=206 write: IOPS=14, BW=59.7KiB/s (61.2kB/s)(6296KiB/105390msec); 0 zone resets clat (usec): min=746, max=929875, avg=35672.66, stdev=42450.77 lat (usec): min=747, max=929877, avg=35675.67, stdev=42449.76 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1270], 20.00th=[ 3064], | 30.00th=[ 6980], 40.00th=[ 16909], 50.00th=[ 26346], 60.00th=[ 36439], | 70.00th=[ 47973], 80.00th=[ 62129], 90.00th=[ 83362], 95.00th=[105382], | 99.00th=[154141], 99.50th=[175113], 99.90th=[316670], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 15, max= 144, per=25.46%, avg=59.83, stdev=23.95, samples=206 iops : min= 3, max= 36, avg=14.34, stdev= 6.07, samples=206 lat (usec) : 50=1.01%, 100=3.94%, 250=0.26%, 750=0.07%, 1000=0.29% lat (msec) : 2=7.75%, 4=4.10%, 10=6.35%, 20=13.96%, 50=37.79% lat (msec) : 100=21.09%, 250=3.29%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=5.69%, ctx=6390, 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=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=174487: Wed Sep 16 22:40:24 2026 read: IOPS=14, BW=56.6KiB/s (57.9kB/s)(5940KiB/105033msec) clat (usec): min=28, max=291494, avg=32976.84, stdev=25877.70 lat (usec): min=28, max=291495, avg=32978.24, stdev=25877.60 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 14353], | 30.00th=[ 19268], 40.00th=[ 22938], 50.00th=[ 27657], 60.00th=[ 33817], | 70.00th=[ 42206], 80.00th=[ 51119], 90.00th=[ 63701], 95.00th=[ 76022], | 99.00th=[121111], 99.50th=[135267], 99.90th=[198181], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 5, max= 128, per=25.35%, avg=56.78, stdev=22.55, samples=205 iops : min= 1, max= 32, avg=13.56, stdev= 5.71, samples=205 write: IOPS=15, BW=60.4KiB/s (61.9kB/s)(6348KiB/105033msec); 0 zone resets clat (usec): min=728, max=999371, avg=34962.48, stdev=43724.18 lat (usec): min=729, max=999372, avg=34964.68, stdev=43724.15 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1287], | 20.00th=[ 3097], 30.00th=[ 6915], 40.00th=[ 16057], | 50.00th=[ 25297], 60.00th=[ 35390], 70.00th=[ 44827], | 80.00th=[ 59507], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[ 162530], 99.50th=[ 210764], 99.90th=[ 371196], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 15, max= 163, per=25.67%, avg=60.32, stdev=25.90, samples=206 iops : min= 3, max= 40, avg=14.45, stdev= 6.52, samples=206 lat (usec) : 50=0.91%, 100=5.01%, 250=0.33%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=7.39%, 4=4.07%, 10=6.45%, 20=13.61%, 50=38.48% lat (msec) : 100=19.92%, 250=3.39%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.76%, ctx=6301, 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=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=174488: Wed Sep 16 22:40:24 2026 read: IOPS=14, BW=56.4KiB/s (57.8kB/s)(6028KiB/106867msec) clat (usec): min=33, max=232218, avg=32464.37, stdev=24756.01 lat (usec): min=33, max=232220, avg=32469.53, stdev=24756.08 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 72], 20.00th=[ 13829], | 30.00th=[ 18744], 40.00th=[ 22938], 50.00th=[ 27657], 60.00th=[ 32637], | 70.00th=[ 40633], 80.00th=[ 50070], 90.00th=[ 64750], 95.00th=[ 78119], | 99.00th=[112722], 99.50th=[119014], 99.90th=[200279], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 7, max= 123, per=25.15%, avg=56.34, stdev=22.38, samples=208 iops : min= 1, max= 30, avg=13.44, stdev= 5.64, samples=208 write: IOPS=14, BW=58.6KiB/s (59.0kB/s)(6260KiB/106867msec); 0 zone resets clat (usec): min=674, max=846261, avg=36698.06, stdev=42927.84 lat (usec): min=674, max=846262, avg=36708.87, stdev=42935.99 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1287], 20.00th=[ 3064], | 30.00th=[ 6980], 40.00th=[ 16581], 50.00th=[ 26608], 60.00th=[ 35914], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[160433], 99.50th=[183501], 99.90th=[417334], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 15, max= 134, per=24.75%, avg=58.15, stdev=22.25, samples=209 iops : min= 3, max= 33, avg=13.91, stdev= 5.61, samples=209 lat (usec) : 50=0.81%, 100=4.65%, 250=0.26%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.33% lat (msec) : 2=7.68%, 4=3.78%, 10=7.10%, 20=13.80%, 50=36.85% lat (msec) : 100=20.61%, 250=3.97%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.70%, ctx=6289, majf=0, minf=16 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=174489: Wed Sep 16 22:40:24 2026 read: IOPS=14, BW=57.1KiB/s (58.5kB/s)(6052KiB/105985msec) clat (usec): min=31, max=272093, avg=32149.11, stdev=25316.46 lat (usec): min=32, max=272094, avg=32150.31, stdev=25316.41 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 14222], | 30.00th=[ 19006], 40.00th=[ 23462], 50.00th=[ 27657], 60.00th=[ 32637], | 70.00th=[ 40109], 80.00th=[ 50070], 90.00th=[ 62653], 95.00th=[ 73925], | 99.00th=[110625], 99.50th=[135267], 99.90th=[248513], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 148, per=25.70%, avg=57.57, stdev=23.92, samples=206 iops : min= 1, max= 37, avg=13.77, stdev= 6.05, samples=206 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(6236KiB/105985msec); 0 zone resets clat (usec): min=678, max=1121.2k, avg=36469.15, stdev=44514.05 lat (usec): min=679, max=1121.2k, avg=36470.58, stdev=44514.07 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1139], 10.00th=[ 1287], | 20.00th=[ 3359], 30.00th=[ 7898], 40.00th=[ 19530], | 50.00th=[ 27919], 60.00th=[ 36963], 70.00th=[ 47973], | 80.00th=[ 61604], 90.00th=[ 84411], 95.00th=[ 102237], | 99.00th=[ 149947], 99.50th=[ 179307], 99.90th=[ 250610], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 7, max= 135, per=25.24%, avg=59.32, stdev=23.05, samples=206 iops : min= 1, max= 33, avg=14.20, stdev= 5.84, samples=206 lat (usec) : 50=1.20%, 100=4.95%, 250=0.20%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.26% lat (msec) : 2=7.29%, 4=3.87%, 10=6.05%, 20=12.24%, 50=39.88% lat (msec) : 100=20.12%, 250=3.65%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=5.61%, ctx=6245, 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=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=225KiB/s (230kB/s), 56.4KiB/s-57.1KiB/s (57.8kB/s-58.5kB/s), io=23.4MiB (24.6MB), run=105033-106867msec WRITE: bw=235KiB/s (241kB/s), 58.6KiB/s-60.4KiB/s (59.0kB/s-61.9kB/s), io=24.6MiB (25.7MB), run=105033-106867msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174490: Wed Sep 16 22:42:35 2026 read: IOPS=6, BW=25.3KiB/s (25.9kB/s)(5992KiB/237249msec) clat (msec): min=4, max=948, avg=29.51, stdev=39.50 lat (msec): min=4, max=948, avg=29.52, stdev=39.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 38], 90.00th=[ 62], 95.00th=[ 88], | 99.00th=[ 144], 99.50th=[ 203], 99.90th=[ 464], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 119, per=27.28%, avg=27.28, stdev=17.48, samples=426 iops : min= 1, max= 29, avg= 6.20, stdev= 4.43, samples=426 write: IOPS=6, BW=26.5KiB/s (27.2kB/s)(6296KiB/237249msec); 0 zone resets clat (msec): min=31, max=500, avg=122.41, stdev=50.69 lat (msec): min=31, max=500, avg=122.42, stdev=50.69 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 113], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 161], 90.00th=[ 192], 95.00th=[ 218], | 99.00th=[ 279], 99.50th=[ 309], 99.90th=[ 359], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 63, per=25.11%, avg=26.37, stdev=10.37, samples=462 iops : min= 1, max= 15, avg= 5.97, stdev= 2.66, samples=462 lat (msec) : 10=5.99%, 20=20.15%, 50=16.67%, 100=23.99%, 250=32.13% lat (msec) : 500=1.01%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.19%, ctx=5158, 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=174491: Wed Sep 16 22:42:35 2026 read: IOPS=6, BW=25.0KiB/s (25.6kB/s)(5940KiB/237213msec) clat (msec): min=4, max=984, avg=28.30, stdev=38.49 lat (msec): min=4, max=984, avg=28.30, stdev=38.49 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 36], 90.00th=[ 60], 95.00th=[ 83], | 99.00th=[ 136], 99.50th=[ 190], 99.90th=[ 409], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 101, per=27.63%, avg=27.63, stdev=17.96, samples=417 iops : min= 1, max= 25, avg= 6.30, stdev= 4.53, samples=417 write: IOPS=6, BW=26.8KiB/s (27.4kB/s)(6348KiB/237213msec); 0 zone resets clat (msec): min=37, max=506, avg=122.75, stdev=53.51 lat (msec): min=37, max=506, avg=122.75, stdev=53.51 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 161], 90.00th=[ 192], 95.00th=[ 220], | 99.00th=[ 296], 99.50th=[ 355], 99.90th=[ 439], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 55, per=25.18%, avg=26.44, stdev=10.60, samples=465 iops : min= 1, max= 13, avg= 5.99, stdev= 2.71, samples=465 lat (msec) : 10=6.58%, 20=19.99%, 50=16.63%, 100=24.41%, 250=30.89% lat (msec) : 500=1.43%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.17%, ctx=5084, 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=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=174492: Wed Sep 16 22:42:35 2026 read: IOPS=6, BW=25.3KiB/s (25.0kB/s)(6028KiB/237845msec) clat (msec): min=4, max=470, avg=29.98, stdev=32.61 lat (msec): min=4, max=470, avg=29.98, stdev=32.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 63], 95.00th=[ 87], | 99.00th=[ 161], 99.50th=[ 209], 99.90th=[ 409], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 119, per=27.21%, avg=27.21, stdev=17.94, samples=429 iops : min= 1, max= 29, avg= 6.18, stdev= 4.53, samples=429 write: IOPS=6, BW=26.3KiB/s (26.0kB/s)(6260KiB/237845msec); 0 zone resets clat (msec): min=36, max=1069, avg=122.84, stdev=57.05 lat (msec): min=36, max=1069, avg=122.84, stdev=57.05 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 125], | 70.00th=[ 138], 80.00th=[ 161], 90.00th=[ 190], 95.00th=[ 222], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 523], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 56, per=24.71%, avg=25.94, stdev=10.75, samples=466 iops : min= 1, max= 14, avg= 5.86, stdev= 2.75, samples=466 lat (msec) : 10=5.57%, 20=19.50%, 50=17.42%, 100=25.13%, 250=30.99% lat (msec) : 500=1.33%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5035, 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=174493: Wed Sep 16 22:42:35 2026 read: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6052KiB/236460msec) clat (msec): min=4, max=379, avg=27.60, stdev=28.24 lat (msec): min=4, max=379, avg=27.60, stdev=28.24 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 38], 90.00th=[ 58], 95.00th=[ 82], | 99.00th=[ 131], 99.50th=[ 167], 99.90th=[ 292], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 103, per=27.65%, avg=27.65, stdev=18.29, samples=424 iops : min= 1, max= 25, avg= 6.29, stdev= 4.60, samples=424 write: IOPS=6, BW=26.4KiB/s (27.0kB/s)(6236KiB/236460msec); 0 zone resets clat (msec): min=35, max=1115, avg=124.67, stdev=59.67 lat (msec): min=35, max=1115, avg=124.67, stdev=59.67 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 128], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 190], 95.00th=[ 226], | 99.00th=[ 313], 99.50th=[ 368], 99.90th=[ 472], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 56, per=24.72%, avg=25.96, stdev=10.78, samples=464 iops : min= 1, max= 14, avg= 5.87, stdev= 2.76, samples=464 lat (msec) : 10=7.13%, 20=20.05%, 50=16.70%, 100=23.21%, 250=31.38% lat (msec) : 500=1.50%, 2000=0.03% cpu : usr=0.04%, sys=1.10%, ctx=5093, 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=101KiB/s (103kB/s), 25.0KiB/s-25.6KiB/s (25.6kB/s-26.2kB/s), io=23.4MiB (24.6MB), run=236460-237845msec WRITE: bw=106KiB/s (108kB/s), 26.3KiB/s-26.8KiB/s (26.0kB/s-27.4kB/s), io=24.6MiB (25.7MB), run=236460-237845msec 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=174542: Wed Sep 16 22:43:07 2026 read: IOPS=16, BW=262KiB/s (268kB/s)(5920KiB/22593msec) clat (usec): min=23, max=245200, avg=31628.93, stdev=29312.28 lat (usec): min=23, max=245202, avg=31630.41, stdev=29312.56 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 51], 10.00th=[ 57], 20.00th=[ 72], | 30.00th=[ 16909], 40.00th=[ 23200], 50.00th=[ 28443], 60.00th=[ 33817], | 70.00th=[ 39584], 80.00th=[ 50594], 90.00th=[ 63701], 95.00th=[ 81265], | 99.00th=[156238], 99.50th=[170918], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 93, max= 570, per=24.77%, avg=261.11, stdev=100.60, samples=44 iops : min= 5, max= 35, avg=15.61, stdev= 6.35, samples=44 write: IOPS=17, BW=282KiB/s (289kB/s)(6368KiB/22593msec); 0 zone resets clat (usec): min=1225, max=213559, avg=27281.01, stdev=29777.15 lat (usec): min=1228, max=213562, avg=27283.55, stdev=29776.91 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1745], 10.00th=[ 2114], 20.00th=[ 4080], | 30.00th=[ 7177], 40.00th=[ 11076], 50.00th=[ 18220], 60.00th=[ 24773], | 70.00th=[ 34866], 80.00th=[ 47973], 90.00th=[ 62653], 95.00th=[ 79168], | 99.00th=[141558], 99.50th=[210764], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 32, max= 504, per=25.51%, avg=282.86, stdev=102.20, samples=44 iops : min= 2, max= 31, avg=16.98, stdev= 6.38, samples=44 lat (usec) : 50=2.34%, 100=8.33%, 250=0.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=4.43%, 4=5.99%, 10=9.38%, 20=12.63%, 50=36.85% lat (msec) : 100=16.80%, 250=2.60% cpu : usr=0.13%, sys=7.02%, ctx=1414, 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=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=174543: Wed Sep 16 22:43:07 2026 read: IOPS=16, BW=260KiB/s (266kB/s)(5744KiB/22134msec) clat (usec): min=35, max=122108, avg=29475.10, stdev=23550.63 lat (usec): min=35, max=122110, avg=29476.33, stdev=23550.61 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 96], | 30.00th=[ 16909], 40.00th=[ 22676], 50.00th=[ 27132], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 48497], 90.00th=[ 60031], 95.00th=[ 69731], | 99.00th=[102237], 99.50th=[115868], 99.90th=[122160], 99.95th=[122160], | 99.99th=[122160] bw ( KiB/s): min= 23, max= 539, per=24.57%, avg=258.93, stdev=114.47, samples=43 iops : min= 1, max= 33, avg=15.47, stdev= 7.16, samples=43 write: IOPS=18, BW=296KiB/s (303kB/s)(6544KiB/22134msec); 0 zone resets clat (usec): min=1351, max=228962, avg=28163.41, stdev=33935.70 lat (usec): min=1352, max=228964, avg=28165.47, stdev=33935.75 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1680], 10.00th=[ 2311], 20.00th=[ 4015], | 30.00th=[ 6390], 40.00th=[ 10945], 50.00th=[ 15533], 60.00th=[ 23987], | 70.00th=[ 32900], 80.00th=[ 46924], 90.00th=[ 63701], 95.00th=[ 98042], | 99.00th=[173016], 99.50th=[198181], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 92, max= 606, per=26.34%, avg=292.16, stdev=117.04, samples=43 iops : min= 5, max= 37, avg=17.56, stdev= 7.33, samples=43 lat (usec) : 50=1.56%, 100=8.20%, 250=0.78%, 1000=0.26% lat (msec) : 2=4.82%, 4=5.99%, 10=10.16%, 20=14.71%, 50=35.55% lat (msec) : 100=14.97%, 250=2.99% cpu : usr=0.07%, sys=6.77%, ctx=1362, majf=0, minf=16 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=174544: Wed Sep 16 22:43:07 2026 read: IOPS=17, BW=275KiB/s (282kB/s)(6256KiB/22722msec) clat (usec): min=36, max=188697, avg=30115.72, stdev=26615.11 lat (usec): min=37, max=188698, avg=30117.02, stdev=26615.14 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 96], | 30.00th=[ 16909], 40.00th=[ 22938], 50.00th=[ 29230], 60.00th=[ 32375], | 70.00th=[ 38536], 80.00th=[ 46924], 90.00th=[ 58459], 95.00th=[ 72877], | 99.00th=[145753], 99.50th=[175113], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 127, max= 506, per=25.95%, avg=273.52, stdev=85.85, samples=44 iops : min= 7, max= 31, avg=16.41, stdev= 5.36, samples=44 write: IOPS=16, BW=265KiB/s (272kB/s)(6032KiB/22722msec); 0 zone resets clat (usec): min=1273, max=237046, avg=28910.01, stdev=30614.76 lat (usec): min=1274, max=237048, avg=28912.13, stdev=30614.68 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1762], 10.00th=[ 2540], 20.00th=[ 4293], | 30.00th=[ 6718], 40.00th=[ 10290], 50.00th=[ 20055], 60.00th=[ 27132], | 70.00th=[ 39584], 80.00th=[ 48497], 90.00th=[ 72877], 95.00th=[ 85459], | 99.00th=[133694], 99.50th=[170918], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 31, max= 539, per=23.96%, avg=265.67, stdev=109.43, samples=43 iops : min= 1, max= 33, avg=15.86, stdev= 6.88, samples=43 lat (usec) : 50=0.91%, 100=9.51%, 250=0.91%, 500=0.39%, 1000=0.13% lat (msec) : 2=3.91%, 4=5.34%, 10=10.29%, 20=11.20%, 50=39.45% lat (msec) : 100=16.02%, 250=1.95% cpu : usr=0.06%, sys=6.67%, ctx=1419, majf=0, minf=16 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=174545: Wed Sep 16 22:43:07 2026 read: IOPS=17, BW=276KiB/s (282kB/s)(6032KiB/21892msec) clat (usec): min=29, max=201294, avg=29549.59, stdev=25548.96 lat (usec): min=29, max=201295, avg=29569.67, stdev=25536.20 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 82], | 30.00th=[ 15533], 40.00th=[ 22938], 50.00th=[ 27919], 60.00th=[ 33424], | 70.00th=[ 40633], 80.00th=[ 47449], 90.00th=[ 63177], 95.00th=[ 72877], | 99.00th=[ 96994], 99.50th=[124257], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 530, per=26.73%, avg=281.78, stdev=113.27, samples=41 iops : min= 1, max= 33, avg=16.90, stdev= 7.13, samples=41 write: IOPS=17, BW=286KiB/s (293kB/s)(6256KiB/21892msec); 0 zone resets clat (usec): min=1129, max=417374, avg=27405.72, stdev=41509.52 lat (usec): min=1130, max=417376, avg=27409.65, stdev=41508.55 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1713], 10.00th=[ 1958], 20.00th=[ 3326], | 30.00th=[ 5538], 40.00th=[ 8291], 50.00th=[ 12911], 60.00th=[ 21627], | 70.00th=[ 31851], 80.00th=[ 45351], 90.00th=[ 63177], 95.00th=[ 81265], | 99.00th=[256902], 99.50th=[299893], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 31, max= 536, per=25.80%, avg=286.12, stdev=124.57, samples=42 iops : min= 1, max= 33, avg=17.19, stdev= 7.84, samples=42 lat (usec) : 50=1.43%, 100=9.11%, 250=0.91%, 500=0.26%, 750=0.39% lat (msec) : 2=5.60%, 4=7.42%, 10=10.68%, 20=11.59%, 50=36.07% lat (msec) : 100=14.19%, 250=1.82%, 500=0.52% cpu : usr=0.09%, sys=6.79%, ctx=1352, 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=1054KiB/s (1079kB/s), 260KiB/s-276KiB/s (266kB/s-282kB/s), io=23.4MiB (24.5MB), run=21892-22722msec WRITE: bw=1109KiB/s (1136kB/s), 265KiB/s-296KiB/s (272kB/s-303kB/s), io=24.6MiB (25.8MB), run=21892-22722msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174537: Wed Sep 16 22:43:43 2026 read: IOPS=6, BW=103KiB/s (106kB/s)(5920KiB/57281msec) clat (msec): min=6, max=247, avg=29.90, stdev=26.08 lat (msec): min=6, max=247, avg=29.90, stdev=26.08 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 64], 95.00th=[ 87], | 99.00th=[ 117], 99.50th=[ 161], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 31, max= 352, per=28.13%, avg=115.07, stdev=64.90, samples=101 iops : min= 1, max= 22, avg= 6.47, stdev= 4.12, samples=101 write: IOPS=6, BW=111KiB/s (114kB/s)(6368KiB/57281msec); 0 zone resets clat (msec): min=41, max=404, avg=115.83, stdev=53.59 lat (msec): min=41, max=404, avg=115.83, stdev=53.59 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 85], 40.00th=[ 94], 50.00th=[ 103], 60.00th=[ 112], | 70.00th=[ 127], 80.00th=[ 146], 90.00th=[ 182], 95.00th=[ 228], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 29, max= 221, per=25.75%, avg=110.71, stdev=44.59, samples=113 iops : min= 1, max= 13, avg= 6.19, stdev= 2.88, samples=113 lat (msec) : 10=3.78%, 20=18.75%, 50=19.27%, 100=30.21%, 250=26.17% lat (msec) : 500=1.82% cpu : usr=0.06%, sys=1.23%, ctx=1199, 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=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=174538: Wed Sep 16 22:43:43 2026 read: IOPS=6, BW=98.2KiB/s (101kB/s)(5744KiB/58492msec) clat (msec): min=5, max=177, avg=29.28, stdev=26.19 lat (msec): min=5, max=178, avg=29.29, stdev=26.19 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 44], 90.00th=[ 64], 95.00th=[ 97], | 99.00th=[ 127], 99.50th=[ 144], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 29, max= 411, per=27.81%, avg=113.73, stdev=77.50, samples=100 iops : min= 1, max= 25, avg= 6.36, stdev= 4.89, samples=100 write: IOPS=6, BW=112KiB/s (115kB/s)(6544KiB/58492msec); 0 zone resets clat (msec): min=33, max=421, avg=116.99, stdev=56.18 lat (msec): min=33, max=421, avg=116.99, stdev=56.18 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 95], 50.00th=[ 105], 60.00th=[ 114], | 70.00th=[ 129], 80.00th=[ 153], 90.00th=[ 192], 95.00th=[ 228], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 31, max= 224, per=26.13%, avg=112.36, stdev=47.46, samples=115 iops : min= 1, max= 14, avg= 6.29, stdev= 3.07, samples=115 lat (msec) : 10=3.52%, 20=20.44%, 50=17.32%, 100=28.26%, 250=28.91% lat (msec) : 500=1.56% cpu : usr=0.05%, sys=1.41%, ctx=1392, 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=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=174539: Wed Sep 16 22:43:43 2026 read: IOPS=6, BW=112KiB/s (115kB/s)(6256KiB/55876msec) clat (msec): min=5, max=182, avg=29.16, stdev=25.51 lat (msec): min=5, max=182, avg=29.16, stdev=25.51 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 40], 90.00th=[ 59], 95.00th=[ 81], | 99.00th=[ 138], 99.50th=[ 155], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 31, max= 383, per=29.72%, avg=121.55, stdev=73.62, samples=102 iops : min= 1, max= 23, avg= 6.87, stdev= 4.70, samples=102 write: IOPS=6, BW=108KiB/s (111kB/s)(6032KiB/55876msec); 0 zone resets clat (msec): min=39, max=362, avg=117.79, stdev=53.21 lat (msec): min=39, max=362, avg=117.79, stdev=53.21 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 95], 50.00th=[ 109], 60.00th=[ 120], | 70.00th=[ 132], 80.00th=[ 153], 90.00th=[ 184], 95.00th=[ 228], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 223, per=25.03%, avg=107.63, stdev=43.48, samples=110 iops : min= 1, max= 13, avg= 5.99, stdev= 2.78, samples=110 lat (msec) : 10=4.04%, 20=20.70%, 50=19.66%, 100=26.56%, 250=27.60% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=1.45%, ctx=1349, 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=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=174540: Wed Sep 16 22:43:43 2026 read: IOPS=6, BW=105KiB/s (108kB/s)(6032KiB/57412msec) clat (msec): min=6, max=243, avg=29.39, stdev=29.86 lat (msec): min=6, max=243, avg=29.39, stdev=29.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 38], 90.00th=[ 61], 95.00th=[ 84], | 99.00th=[ 188], 99.50th=[ 203], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 384, per=27.39%, avg=112.01, stdev=71.78, samples=105 iops : min= 1, max= 24, avg= 6.27, stdev= 4.60, samples=105 write: IOPS=6, BW=109KiB/s (112kB/s)(6256KiB/57412msec); 0 zone resets clat (msec): min=36, max=461, avg=118.22, stdev=54.44 lat (msec): min=36, max=461, avg=118.23, stdev=54.44 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 78], | 30.00th=[ 85], 40.00th=[ 94], 50.00th=[ 106], 60.00th=[ 120], | 70.00th=[ 132], 80.00th=[ 148], 90.00th=[ 184], 95.00th=[ 226], | 99.00th=[ 321], 99.50th=[ 372], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 31, max= 223, per=25.22%, avg=108.42, stdev=46.19, samples=113 iops : min= 1, max= 13, avg= 6.04, stdev= 2.99, samples=113 lat (msec) : 10=4.17%, 20=20.70%, 50=18.49%, 100=27.60%, 250=27.21% lat (msec) : 500=1.82% cpu : usr=0.03%, sys=1.37%, ctx=1325, 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=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=409KiB/s (419kB/s), 98.2KiB/s-112KiB/s (101kB/s-115kB/s), io=23.4MiB (24.5MB), run=55876-58492msec WRITE: bw=431KiB/s (441kB/s), 108KiB/s-112KiB/s (111kB/s-115kB/s), io=24.6MiB (25.8MB), run=55876-58492msec 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=174568: Wed Sep 16 22:44:02 2026 read: IOPS=1, BW=1594KiB/s (1632kB/s)(7168KiB/4498msec) clat (msec): min=49, max=2599, avg=496.38, stdev=929.29 lat (msec): min=49, max=2599, avg=496.39, stdev=929.29 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 109], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 241], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 2039, max= 4087, per=100.00%, avg=2759.25, stdev=967.22, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1138KiB/s (1166kB/s)(5120KiB/4498msec); 0 zone resets clat (msec): min=104, max=286, avg=163.47, stdev=82.69 lat (msec): min=104, max=287, avg=163.56, stdev=82.69 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 109], 60.00th=[ 109], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 4079, max= 4087, per=100.00%, avg=4083.00, stdev= 5.66, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (msec) : 50=8.33%, 250=75.00%, 500=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=11.19%, ctx=595, 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=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=174569: Wed Sep 16 22:44:02 2026 read: IOPS=0, BW=390KiB/s (399kB/s)(2048KiB/5251msec) clat (msec): min=176, max=247, avg=211.79, stdev=50.54 lat (msec): min=176, max=247, avg=211.79, stdev=50.54 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 249], 95.00th=[ 249], | 99.00th=[ 249], 99.50th=[ 249], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 1992, max= 2019, per=75.65%, avg=2005.50, stdev=19.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1950KiB/s (1997kB/s)(10.0MiB/5251msec); 0 zone resets clat (msec): min=64, max=2941, avg=477.13, stdev=891.38 lat (msec): min=64, max=2941, avg=477.24, stdev=891.40 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 80], | 30.00th=[ 109], 40.00th=[ 112], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 165], 80.00th=[ 213], 90.00th=[ 793], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 1992, max= 8143, per=100.00%, avg=5398.00, stdev=3128.32, samples=3 iops : min= 1, max= 7, avg= 4.33, stdev= 3.06, samples=3 lat (msec) : 100=16.67%, 250=66.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.08%, sys=8.21%, ctx=83, 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=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=174570: Wed Sep 16 22:44:02 2026 read: IOPS=0, BW=795KiB/s (815kB/s)(6144KiB/7724msec) clat (usec): min=451, max=221426, avg=106703.32, stdev=95696.58 lat (usec): min=452, max=221426, avg=106704.45, stdev=95696.22 clat percentiles (usec): | 1.00th=[ 453], 5.00th=[ 453], 10.00th=[ 453], 20.00th=[ 1500], | 30.00th=[ 1500], 40.00th=[ 82314], 50.00th=[ 82314], 60.00th=[132645], | 70.00th=[202376], 80.00th=[202376], 90.00th=[221250], 95.00th=[221250], | 99.00th=[221250], 99.50th=[221250], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 2003, max= 4079, per=100.00%, avg=3350.00, stdev=1167.86, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=795KiB/s (815kB/s)(6144KiB/7724msec); 0 zone resets clat (msec): min=216, max=3178, avg=1164.56, stdev=1310.70 lat (msec): min=216, max=3178, avg=1164.67, stdev=1310.69 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 376], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 1458, max= 2039, per=51.29%, avg=1903.80, stdev=250.25, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=33.33%, 500=25.00%, >=2000=16.67% cpu : usr=0.00%, sys=5.23%, ctx=172, 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=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=174571: Wed Sep 16 22:44:02 2026 read: IOPS=0, BW=684KiB/s (700kB/s)(5120KiB/7489msec) clat (usec): min=469, max=2305.3k, avg=504978.07, stdev=1010796.53 lat (usec): min=470, max=2305.3k, avg=504979.27, stdev=1010796.67 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], | 20.00th=[ 469], 30.00th=[ 553], 40.00th=[ 553], | 50.00th=[ 734], 60.00th=[ 734], 70.00th=[ 217056], | 80.00th=[ 217056], 90.00th=[2298479], 95.00th=[2298479], | 99.00th=[2298479], 99.50th=[2298479], 99.90th=[2298479], | 99.95th=[2298479], 99.99th=[2298479] bw ( KiB/s): min= 3968, max= 4079, per=100.00%, avg=4023.50, stdev=78.49, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=957KiB/s (980kB/s)(7168KiB/7489msec); 0 zone resets clat (msec): min=100, max=3243, avg=691.30, stdev=1150.29 lat (msec): min=100, max=3243, avg=692.27, stdev=1149.81 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 110], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 171], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 785], 90.00th=[ 3239], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 2035, max= 4079, per=81.63%, avg=3030.25, stdev=1147.80, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=41.67%, 500=8.33%, 1000=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=5.62%, ctx=503, 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=2651KiB/s (2715kB/s), 390KiB/s-1594KiB/s (399kB/s-1632kB/s), io=20.0MiB (20.0MB), run=4498-7724msec WRITE: bw=3712KiB/s (3801kB/s), 795KiB/s-1950KiB/s (815kB/s-1997kB/s), io=28.0MiB (29.4MB), run=4498-7724msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174563: Wed Sep 16 22:44:03 2026 read: IOPS=1, BW=1599KiB/s (1638kB/s)(7168KiB/4482msec) clat (msec): min=93, max=156, avg=113.88, stdev=21.07 lat (msec): min=93, max=156, avg=113.88, stdev=21.07 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 96], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 109], 60.00th=[ 115], | 70.00th=[ 115], 80.00th=[ 122], 90.00th=[ 157], 95.00th=[ 157], | 99.00th=[ 157], 99.50th=[ 157], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 2035, max= 4995, per=100.00%, avg=3697.67, stdev=1513.44, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1142KiB/s (1170kB/s)(5120KiB/4482msec); 0 zone resets clat (msec): min=205, max=2612, avg=720.91, stdev=1058.49 lat (msec): min=205, max=2613, avg=721.00, stdev=1058.47 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 241], 60.00th=[ 241], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 2031, max= 4071, per=82.83%, avg=2716.67, stdev=1172.92, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=16.67%, 250=66.67%, 500=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=2.30%, ctx=50, 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=174564: Wed Sep 16 22:44:03 2026 read: IOPS=0, BW=238KiB/s (243kB/s)(2048KiB/8616msec) clat (msec): min=56, max=371, avg=214.19, stdev=222.42 lat (msec): min=56, max=371, avg=214.20, stdev=222.42 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 57], 40.00th=[ 57], 50.00th=[ 57], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 1670, max= 2039, per=79.15%, avg=1854.50, stdev=260.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1188KiB/s (1217kB/s)(10.0MiB/8616msec); 0 zone resets clat (msec): min=155, max=2751, avg=802.87, stdev=1026.93 lat (msec): min=155, max=2752, avg=803.08, stdev=1026.86 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 161], | 30.00th=[ 182], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 239], | 70.00th=[ 527], 80.00th=[ 1011], 90.00th=[ 2635], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 1996, max= 6107, per=86.49%, avg=2837.00, stdev=1828.11, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=16.67% cpu : usr=0.00%, sys=2.31%, ctx=79, 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=174565: Wed Sep 16 22:44:03 2026 read: IOPS=0, BW=788KiB/s (806kB/s)(6144KiB/7801msec) clat (msec): min=65, max=453, avg=210.85, stdev=150.47 lat (msec): min=65, max=453, avg=210.85, stdev=150.47 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 249], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 1992, max= 4079, per=100.00%, avg=3380.67, stdev=1202.63, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=788KiB/s (806kB/s)(6144KiB/7801msec); 0 zone resets clat (msec): min=172, max=2756, avg=1076.56, stdev=1164.07 lat (msec): min=172, max=2756, avg=1076.67, stdev=1164.05 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 443], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 1479, max= 2048, per=59.11%, avg=1938.67, stdev=225.78, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, >=2000=16.67% cpu : usr=0.00%, sys=1.53%, ctx=59, 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=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=174566: Wed Sep 16 22:44:03 2026 read: IOPS=0, BW=586KiB/s (600kB/s)(5120KiB/8740msec) clat (msec): min=79, max=2835, avg=779.66, stdev=1163.69 lat (msec): min=79, max=2835, avg=779.66, stdev=1163.69 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 1992, max= 3992, per=100.00%, avg=2674.33, stdev=1141.37, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=820KiB/s (840kB/s)(7168KiB/8740msec); 0 zone resets clat (msec): min=145, max=2898, avg=658.88, stdev=999.60 lat (msec): min=145, max=2898, avg=658.98, stdev=999.58 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 300], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 600], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 1992, max= 4071, per=85.91%, avg=2818.00, stdev=1111.81, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, >=2000=16.67% cpu : usr=0.03%, sys=1.64%, ctx=70, 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=2343KiB/s (2399kB/s), 238KiB/s-1599KiB/s (243kB/s-1638kB/s), io=20.0MiB (20.0MB), run=4482-8740msec WRITE: bw=3281KiB/s (3359kB/s), 788KiB/s-1188KiB/s (806kB/s-1217kB/s), io=28.0MiB (29.4MB), run=4482-8740msec 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=174580: Wed Sep 16 22:44:17 2026 read: IOPS=1, BW=4264KiB/s (4366kB/s)(12.0MiB/2882msec) clat (msec): min=598, max=1269, avg=908.79, stdev=338.49 lat (msec): min=598, max=1269, avg=908.79, stdev=338.49 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.03%, sys=3.05%, ctx=50, 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=174581: Wed Sep 16 22:44:17 2026 read: IOPS=0, BW=1180KiB/s (1208kB/s)(4096KiB/3471msec) clat (nsec): min=1481.6M, max=1481.6M, avg=1481576708.00, stdev= 0.00 lat (nsec): min=1481.6M, max=1481.6M, avg=1481577785.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1485], 5.00th=[ 1485], 10.00th=[ 1485], 20.00th=[ 1485], | 30.00th=[ 1485], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2360KiB/s (2417kB/s)(8192KiB/3471msec); 0 zone resets clat (msec): min=757, max=890, avg=824.16, stdev=94.40 lat (msec): min=758, max=891, avg=824.65, stdev=94.24 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8159, max= 8159, per=86.43%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.31%, ctx=54, 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=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=174582: Wed Sep 16 22:44:17 2026 write: IOPS=1, BW=7802KiB/s (7989kB/s)(12.0MiB/1575msec); 0 zone resets clat (msec): min=440, max=562, avg=503.81, stdev=60.86 lat (msec): min=441, max=562, avg=504.35, stdev=60.94 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 8078, max= 8159, per=86.00%, avg=8118.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=5.65%, ctx=46, 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=174583: Wed Sep 16 22:44:17 2026 write: IOPS=1, BW=5425KiB/s (5555kB/s)(12.0MiB/2265msec); 0 zone resets clat (msec): min=337, max=1422, avg=737.63, stdev=595.99 lat (msec): min=338, max=1423, avg=739.14, stdev=595.18 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 5535, max= 8062, per=72.02%, avg=6798.50, stdev=1786.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.02%, ctx=56, majf=0, minf=9 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=4720KiB/s (4834kB/s), 1180KiB/s-4264KiB/s (1208kB/s-4366kB/s), io=16.0MiB (16.8MB), run=2882-3471msec WRITE: bw=9441KiB/s (9667kB/s), 2360KiB/s-7802KiB/s (2417kB/s-7989kB/s), io=32.0MiB (33.6MB), run=1575-3471msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174584: Wed Sep 16 22:44:17 2026 read: IOPS=1, BW=4735KiB/s (4849kB/s)(12.0MiB/2595msec) clat (msec): min=654, max=905, avg=777.05, stdev=125.98 lat (msec): min=654, max=905, avg=777.05, stdev=125.98 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7876, max= 8094, per=100.00%, avg=7985.00, stdev=154.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.68%, ctx=269, majf=0, minf=9 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=174585: Wed Sep 16 22:44:17 2026 read: IOPS=0, BW=1579KiB/s (1617kB/s)(4096KiB/2594msec) clat (nsec): min=987126k, max=987126k, avg=987125628.00, stdev= 0.00 lat (nsec): min=987128k, max=987128k, avg=987128128.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3158KiB/s (3234kB/s)(8192KiB/2594msec); 0 zone resets clat (msec): min=743, max=746, avg=744.92, stdev= 1.88 lat (msec): min=744, max=747, avg=745.85, stdev= 2.57 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7787, max= 7787, per=72.48%, avg=7787.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.44%, ctx=217, 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=174586: Wed Sep 16 22:44:17 2026 write: IOPS=0, BW=4029KiB/s (4126kB/s)(12.0MiB/3050msec); 0 zone resets clat (msec): min=282, max=1605, avg=943.60, stdev=661.75 lat (msec): min=282, max=1605, avg=944.44, stdev=661.60 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7876, max= 8047, per=74.11%, avg=7961.50, stdev=120.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.03%, ctx=49, majf=0, minf=9 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=174587: Wed Sep 16 22:44:17 2026 write: IOPS=1, BW=4726KiB/s (4840kB/s)(12.0MiB/2600msec); 0 zone resets clat (msec): min=464, max=1099, avg=782.23, stdev=317.67 lat (msec): min=464, max=1100, avg=782.97, stdev=318.03 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8047, max= 8175, per=75.50%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.08%, sys=4.35%, ctx=51, 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 Run status group 0 (all jobs): READ: bw=6314KiB/s (6465kB/s), 1579KiB/s-4735KiB/s (1617kB/s-4849kB/s), io=16.0MiB (16.8MB), run=2594-2595msec WRITE: bw=10.5MiB/s (11.0MB/s), 3158KiB/s-4726KiB/s (3234kB/s-4840kB/s), io=32.0MiB (33.6MB), run=2594-3050msec