== sanity test 398b: DIO and buffer IO race ============== 05:42:26 (1779702146) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.05806 s, 10.0 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=145055: Mon May 25 05:44:39 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5992KiB/118984msec) clat (usec): min=32, max=745881, avg=37782.82, stdev=33317.26 lat (usec): min=33, max=745883, avg=37786.99, stdev=33316.79 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 355], 20.00th=[ 16909], | 30.00th=[ 22152], 40.00th=[ 27132], 50.00th=[ 31851], 60.00th=[ 37487], | 70.00th=[ 45351], 80.00th=[ 56361], 90.00th=[ 72877], 95.00th=[ 87557], | 99.00th=[137364], 99.50th=[152044], 99.90th=[242222], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 143, per=25.14%, avg=50.53, stdev=22.55, samples=232 iops : min= 1, max= 35, avg=11.99, stdev= 5.67, samples=232 write: IOPS=13, BW=52.9KiB/s (54.2kB/s)(6296KiB/118984msec); 0 zone resets clat (usec): min=919, max=262481, avg=39381.24, stdev=40057.46 lat (usec): min=920, max=262483, avg=39383.71, stdev=40057.17 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1582], 10.00th=[ 2343], 20.00th=[ 4424], | 30.00th=[ 8848], 40.00th=[ 18744], 50.00th=[ 28967], 60.00th=[ 39060], | 70.00th=[ 51119], 80.00th=[ 66323], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[164627], 99.50th=[206570], 99.90th=[261096], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 133, per=24.91%, avg=52.56, stdev=22.30, samples=234 iops : min= 1, max= 33, avg=12.53, stdev= 5.61, samples=234 lat (usec) : 50=0.62%, 100=3.65%, 250=0.49%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=4.07%, 4=5.37%, 10=7.29%, 20=11.75%, 50=38.05% lat (msec) : 100=22.49%, 250=5.73%, 500=0.13%, 750=0.03% cpu : usr=0.06%, sys=6.52%, ctx=7019, 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=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=145056: Mon May 25 05:44:39 2026 read: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5940KiB/117491msec) clat (usec): min=30, max=571312, avg=36982.17, stdev=30572.49 lat (usec): min=30, max=571314, avg=36984.45, stdev=30572.70 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 293], 20.00th=[ 17695], | 30.00th=[ 22152], 40.00th=[ 26870], 50.00th=[ 31589], 60.00th=[ 37487], | 70.00th=[ 44827], 80.00th=[ 54789], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[121111], 99.50th=[133694], 99.90th=[299893], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 111, per=25.28%, avg=50.80, stdev=22.71, samples=229 iops : min= 1, max= 27, avg=12.07, stdev= 5.70, samples=229 write: IOPS=13, BW=54.0KiB/s (55.3kB/s)(6348KiB/117491msec); 0 zone resets clat (usec): min=1086, max=402771, avg=39177.26, stdev=40297.94 lat (usec): min=1087, max=402773, avg=39179.55, stdev=40298.11 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1647], 10.00th=[ 2311], 20.00th=[ 4883], | 30.00th=[ 9241], 40.00th=[ 19006], 50.00th=[ 28705], 60.00th=[ 39060], | 70.00th=[ 50070], 80.00th=[ 66847], 90.00th=[ 89654], 95.00th=[116917], | 99.00th=[177210], 99.50th=[210764], 99.90th=[261096], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 7, max= 159, per=25.50%, avg=53.80, stdev=23.33, samples=231 iops : min= 1, max= 39, avg=12.83, stdev= 5.86, samples=231 lat (usec) : 50=0.59%, 100=3.42%, 250=0.68%, 500=0.29%, 750=0.10% lat (usec) : 1000=0.13% lat (msec) : 2=4.59%, 4=4.20%, 10=7.85%, 20=11.13%, 50=39.68% lat (msec) : 100=22.10%, 250=5.01%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=6.75%, ctx=6952, 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=145057: Mon May 25 05:44:39 2026 read: IOPS=12, BW=51.7KiB/s (52.0kB/s)(6028KiB/116572msec) clat (usec): min=34, max=548951, avg=37189.90, stdev=32506.76 lat (usec): min=34, max=548952, avg=37191.98, stdev=32506.46 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 91], 20.00th=[ 16450], | 30.00th=[ 21103], 40.00th=[ 26084], 50.00th=[ 31065], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 54789], 90.00th=[ 69731], 95.00th=[ 87557], | 99.00th=[132645], 99.50th=[187696], 99.90th=[295699], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 15, max= 135, per=25.63%, avg=51.51, stdev=22.07, samples=229 iops : min= 3, max= 33, avg=12.24, stdev= 5.54, samples=229 write: IOPS=13, BW=53.7KiB/s (54.0kB/s)(6260KiB/116572msec); 0 zone resets clat (usec): min=1139, max=327333, avg=38450.11, stdev=40105.72 lat (usec): min=1140, max=327335, avg=38454.18, stdev=40104.81 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1614], 10.00th=[ 2376], 20.00th=[ 4883], | 30.00th=[ 9110], 40.00th=[ 17433], 50.00th=[ 27919], 60.00th=[ 38536], | 70.00th=[ 49546], 80.00th=[ 64750], 90.00th=[ 88605], 95.00th=[114820], | 99.00th=[187696], 99.50th=[202376], 99.90th=[320865], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 7, max= 135, per=25.20%, avg=53.17, stdev=23.74, samples=230 iops : min= 1, max= 33, avg=12.67, stdev= 5.98, samples=230 lat (usec) : 50=0.68%, 100=4.46%, 250=0.65%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=4.07%, 4=4.82%, 10=7.58%, 20=12.53%, 50=37.27% lat (msec) : 100=22.46%, 250=4.98%, 500=0.16%, 750=0.03% cpu : usr=0.09%, sys=6.53%, ctx=6787, 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=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=145058: Mon May 25 05:44:39 2026 read: IOPS=12, BW=50.8KiB/s (52.0kB/s)(6052KiB/119089msec) clat (usec): min=35, max=506299, avg=37703.11, stdev=31024.95 lat (usec): min=36, max=506300, avg=37706.03, stdev=31023.47 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 157], 20.00th=[ 16712], | 30.00th=[ 21890], 40.00th=[ 26608], 50.00th=[ 32113], 60.00th=[ 38011], | 70.00th=[ 46400], 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 88605], | 99.00th=[135267], 99.50th=[166724], 99.90th=[244319], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 7, max= 119, per=25.44%, avg=51.13, stdev=21.72, samples=231 iops : min= 1, max= 29, avg=12.15, stdev= 5.46, samples=231 write: IOPS=13, BW=52.4KiB/s (53.6kB/s)(6236KiB/119089msec); 0 zone resets clat (usec): min=1091, max=553749, avg=39548.84, stdev=40723.63 lat (usec): min=1092, max=553750, avg=39553.83, stdev=40722.83 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1680], 10.00th=[ 2442], 20.00th=[ 4883], | 30.00th=[ 9241], 40.00th=[ 20055], 50.00th=[ 29230], 60.00th=[ 40633], | 70.00th=[ 53216], 80.00th=[ 66847], 90.00th=[ 89654], 95.00th=[112722], | 99.00th=[160433], 99.50th=[210764], 99.90th=[265290], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 7, max= 135, per=24.48%, avg=51.66, stdev=22.36, samples=235 iops : min= 1, max= 33, avg=12.29, stdev= 5.60, samples=235 lat (usec) : 50=0.49%, 100=3.87%, 250=0.75%, 500=0.26%, 750=0.10% lat (usec) : 1000=0.13% lat (msec) : 2=3.48%, 4=5.34%, 10=7.42%, 20=11.49%, 50=37.43% lat (msec) : 100=24.09%, 250=4.98%, 500=0.10%, 750=0.07% cpu : usr=0.08%, sys=6.59%, ctx=6873, 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=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=202KiB/s (206kB/s), 50.4KiB/s-51.7KiB/s (51.6kB/s-52.0kB/s), io=23.4MiB (24.6MB), run=116572-119089msec WRITE: bw=211KiB/s (216kB/s), 52.4KiB/s-54.0KiB/s (53.6kB/s-55.3kB/s), io=24.6MiB (25.7MB), run=116572-119089msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145059: Mon May 25 05:47:27 2026 read: IOPS=5, BW=21.0KiB/s (21.5kB/s)(5992KiB/285194msec) clat (msec): min=5, max=767, avg=40.49, stdev=39.57 lat (msec): min=5, max=767, avg=40.50, stdev=39.57 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 79], 95.00th=[ 103], | 99.00th=[ 186], 99.50th=[ 262], 99.90th=[ 380], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 78, per=28.51%, avg=23.66, stdev=14.98, samples=489 iops : min= 1, max= 19, avg= 5.30, stdev= 3.80, samples=489 write: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6296KiB/285194msec); 0 zone resets clat (msec): min=35, max=626, avg=142.45, stdev=65.06 lat (msec): min=35, max=626, avg=142.45, stdev=65.06 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 89], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 232], 95.00th=[ 264], | 99.00th=[ 342], 99.50th=[ 376], 99.90th=[ 489], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 48, per=24.94%, avg=21.70, stdev= 9.57, samples=558 iops : min= 1, max= 12, avg= 4.80, stdev= 2.45, samples=558 lat (msec) : 10=1.27%, 20=12.73%, 50=23.05%, 100=24.02%, 250=35.16% lat (msec) : 500=3.71%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.51%, ctx=5699, 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=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=145060: Mon May 25 05:47:27 2026 read: IOPS=5, BW=20.7KiB/s (21.2kB/s)(5940KiB/286873msec) clat (msec): min=7, max=565, avg=39.89, stdev=36.08 lat (msec): min=7, max=565, avg=39.90, stdev=36.08 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 73], 95.00th=[ 96], | 99.00th=[ 171], 99.50th=[ 205], 99.90th=[ 493], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 87, per=28.33%, avg=23.52, stdev=15.19, samples=487 iops : min= 1, max= 21, avg= 5.27, stdev= 3.84, samples=487 write: IOPS=5, BW=22.1KiB/s (22.7kB/s)(6348KiB/286873msec); 0 zone resets clat (msec): min=31, max=516, avg=143.24, stdev=67.04 lat (msec): min=31, max=516, avg=143.24, stdev=67.04 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 127], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 190], 90.00th=[ 234], 95.00th=[ 275], | 99.00th=[ 368], 99.50th=[ 397], 99.90th=[ 468], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 56, per=24.94%, avg=21.70, stdev= 9.54, samples=561 iops : min= 1, max= 14, avg= 4.81, stdev= 2.44, samples=561 lat (msec) : 10=1.43%, 20=11.95%, 50=23.67%, 100=24.45%, 250=34.31% lat (msec) : 500=4.13%, 750=0.07% cpu : usr=0.05%, sys=1.48%, ctx=5692, 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=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=145061: Mon May 25 05:47:27 2026 read: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6028KiB/285219msec) clat (msec): min=5, max=461, avg=40.88, stdev=33.86 lat (msec): min=5, max=461, avg=40.89, stdev=33.87 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 59], 90.00th=[ 81], 95.00th=[ 101], | 99.00th=[ 153], 99.50th=[ 205], 99.90th=[ 359], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 95, per=27.82%, avg=23.09, stdev=15.45, samples=503 iops : min= 1, max= 23, avg= 5.15, stdev= 3.90, samples=503 write: IOPS=5, BW=21.9KiB/s (22.5kB/s)(6260KiB/285219msec); 0 zone resets clat (msec): min=41, max=671, avg=142.67, stdev=65.61 lat (msec): min=41, max=671, avg=142.68, stdev=65.61 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 104], 40.00th=[ 114], 50.00th=[ 129], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 230], 95.00th=[ 266], | 99.00th=[ 372], 99.50th=[ 401], 99.90th=[ 617], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 48, per=24.73%, avg=21.52, stdev= 9.29, samples=559 iops : min= 1, max= 12, avg= 4.76, stdev= 2.39, samples=559 lat (msec) : 10=1.07%, 20=11.56%, 50=23.99%, 100=23.96%, 250=35.84% lat (msec) : 500=3.52%, 750=0.07% cpu : usr=0.05%, sys=1.51%, ctx=5682, 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=145062: Mon May 25 05:47:27 2026 read: IOPS=5, BW=21.4KiB/s (21.9kB/s)(6052KiB/283242msec) clat (msec): min=5, max=353, avg=39.66, stdev=34.65 lat (msec): min=5, max=353, avg=39.66, stdev=34.65 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 55], 90.00th=[ 79], 95.00th=[ 102], | 99.00th=[ 167], 99.50th=[ 259], 99.90th=[ 326], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7, max= 104, per=28.61%, avg=23.74, stdev=16.02, samples=492 iops : min= 1, max= 26, avg= 5.32, stdev= 4.05, samples=492 write: IOPS=5, BW=22.0KiB/s (22.5kB/s)(6236KiB/283242msec); 0 zone resets clat (msec): min=35, max=623, avg=142.95, stdev=66.83 lat (msec): min=35, max=623, avg=142.96, stdev=66.83 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 103], 40.00th=[ 116], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 188], 90.00th=[ 230], 95.00th=[ 266], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 48, per=24.83%, avg=21.60, stdev= 9.43, samples=555 iops : min= 1, max= 12, avg= 4.78, stdev= 2.42, samples=555 lat (msec) : 10=1.43%, 20=13.22%, 50=23.24%, 100=22.88%, 250=35.55% lat (msec) : 500=3.58%, 750=0.10% cpu : usr=0.04%, sys=1.53%, ctx=5707, 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=83.7KiB/s (85.7kB/s), 20.7KiB/s-21.4KiB/s (21.2kB/s-21.9kB/s), io=23.4MiB (24.6MB), run=283242-286873msec WRITE: bw=87.6KiB/s (89.7kB/s), 21.9KiB/s-22.1KiB/s (22.5kB/s-22.7kB/s), io=24.6MiB (25.7MB), run=283242-286873msec 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=145123: Mon May 25 05:48:07 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(5920KiB/28962msec) clat (usec): min=38, max=312135, avg=40093.56, stdev=33620.86 lat (usec): min=39, max=312136, avg=40108.69, stdev=33618.66 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 67], 10.00th=[ 76], 20.00th=[ 265], | 30.00th=[ 24511], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 64226], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[125305], 99.50th=[198181], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 445, per=26.09%, avg=207.95, stdev=84.74, samples=56 iops : min= 1, max= 27, avg=12.30, stdev= 5.34, samples=56 write: IOPS=13, BW=220KiB/s (225kB/s)(6368KiB/28962msec); 0 zone resets clat (usec): min=1473, max=342064, avg=35255.98, stdev=41051.13 lat (usec): min=1475, max=342066, avg=35281.37, stdev=41046.72 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2474], 10.00th=[ 3818], 20.00th=[ 6194], | 30.00th=[ 9110], 40.00th=[ 13173], 50.00th=[ 21365], 60.00th=[ 30802], | 70.00th=[ 45351], 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[116917], | 99.00th=[193987], 99.50th=[312476], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 31, max= 434, per=26.21%, avg=219.63, stdev=96.97, samples=57 iops : min= 1, max= 27, avg=13.04, stdev= 6.11, samples=57 lat (usec) : 50=0.65%, 100=6.51%, 250=2.21%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=1.30%, 4=4.56%, 10=10.81%, 20=9.64%, 50=35.16% lat (msec) : 100=23.44%, 250=4.56%, 500=0.39% cpu : usr=0.13%, sys=7.41%, ctx=1686, 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=145124: Mon May 25 05:48:07 2026 read: IOPS=11, BW=191KiB/s (196kB/s)(5744KiB/30051msec) clat (usec): min=37, max=243358, avg=43277.73, stdev=33425.25 lat (usec): min=37, max=243359, avg=43281.93, stdev=33424.98 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 82], 20.00th=[ 16188], | 30.00th=[ 27132], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 56361], 80.00th=[ 66847], 90.00th=[ 80217], 95.00th=[ 91751], | 99.00th=[156238], 99.50th=[219153], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 31, max= 477, per=23.88%, avg=190.32, stdev=95.22, samples=59 iops : min= 1, max= 29, avg=11.17, stdev= 5.95, samples=59 write: IOPS=13, BW=218KiB/s (223kB/s)(6544KiB/30051msec); 0 zone resets clat (usec): min=1704, max=457633, avg=35331.41, stdev=41130.29 lat (usec): min=1706, max=457640, avg=35378.68, stdev=41138.95 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 2409], 10.00th=[ 3359], 20.00th=[ 5932], | 30.00th=[ 8029], 40.00th=[ 13698], 50.00th=[ 22676], 60.00th=[ 33162], | 70.00th=[ 43254], 80.00th=[ 60556], 90.00th=[ 82314], 95.00th=[104334], | 99.00th=[162530], 99.50th=[179307], 99.90th=[459277], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 31, max= 540, per=25.89%, avg=216.97, stdev=95.62, samples=59 iops : min= 1, max= 33, avg=12.86, stdev= 6.04, samples=59 lat (usec) : 50=0.39%, 100=5.99%, 250=0.78%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.17%, 4=5.73%, 10=11.59%, 20=9.77%, 50=32.29% lat (msec) : 100=27.21%, 250=4.43%, 500=0.13% cpu : usr=0.12%, sys=7.05%, ctx=1650, 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=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=145125: Mon May 25 05:48:07 2026 read: IOPS=13, BW=219KiB/s (224kB/s)(6256KiB/28552msec) clat (usec): min=38, max=369710, avg=39818.09, stdev=39821.87 lat (usec): min=38, max=369711, avg=39822.94, stdev=39822.74 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 59], 10.00th=[ 74], 20.00th=[ 116], | 30.00th=[ 21365], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 77071], 95.00th=[ 98042], | 99.00th=[179307], 99.50th=[325059], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 31, max= 416, per=27.55%, avg=219.61, stdev=87.72, samples=56 iops : min= 1, max= 26, avg=13.04, stdev= 5.58, samples=56 write: IOPS=13, BW=211KiB/s (216kB/s)(6032KiB/28552msec); 0 zone resets clat (usec): min=1738, max=275715, avg=34322.13, stdev=35828.94 lat (usec): min=1743, max=276001, avg=34335.21, stdev=35845.20 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2409], 10.00th=[ 3195], 20.00th=[ 6194], | 30.00th=[ 9503], 40.00th=[ 15401], 50.00th=[ 22676], 60.00th=[ 30278], | 70.00th=[ 41681], 80.00th=[ 59507], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[145753], 99.50th=[193987], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 445, per=24.89%, avg=208.55, stdev=85.78, samples=56 iops : min= 1, max= 27, avg=12.34, stdev= 5.45, samples=56 lat (usec) : 50=1.69%, 100=7.55%, 250=2.34%, 500=0.13%, 1000=0.26% lat (msec) : 2=1.43%, 4=5.99%, 10=8.59%, 20=9.24%, 50=34.64% lat (msec) : 100=23.05%, 250=4.69%, 500=0.39% cpu : usr=0.09%, sys=7.32%, ctx=1579, 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=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=145126: Mon May 25 05:48:07 2026 read: IOPS=13, BW=212KiB/s (217kB/s)(6032KiB/28471msec) clat (usec): min=37, max=189481, avg=38942.47, stdev=31936.37 lat (usec): min=37, max=189483, avg=38944.00, stdev=31936.41 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 70], 20.00th=[ 105], | 30.00th=[ 22414], 40.00th=[ 31065], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 64750], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[137364], 99.50th=[145753], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 94, max= 443, per=27.59%, avg=219.89, stdev=79.06, samples=54 iops : min= 5, max= 27, avg=13.04, stdev= 5.02, samples=54 write: IOPS=13, BW=220KiB/s (225kB/s)(6256KiB/28471msec); 0 zone resets clat (usec): min=1714, max=664597, avg=35116.42, stdev=48737.86 lat (usec): min=1717, max=664600, avg=35125.87, stdev=48738.40 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2802], 10.00th=[ 3818], 20.00th=[ 5800], | 30.00th=[ 8029], 40.00th=[ 12518], 50.00th=[ 21890], 60.00th=[ 31065], | 70.00th=[ 42730], 80.00th=[ 54264], 90.00th=[ 78119], 95.00th=[105382], | 99.00th=[179307], 99.50th=[270533], 99.90th=[666895], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 64, max= 477, per=26.75%, avg=224.16, stdev=86.86, samples=55 iops : min= 4, max= 29, avg=13.33, stdev= 5.38, samples=55 lat (usec) : 50=1.56%, 100=7.94%, 250=2.21%, 500=0.52%, 750=0.13% lat (msec) : 2=1.17%, 4=5.08%, 10=11.85%, 20=8.59%, 50=33.33% lat (msec) : 100=22.92%, 250=4.43%, 500=0.13%, 750=0.13% cpu : usr=0.07%, sys=7.18%, ctx=1495, 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=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=797KiB/s (816kB/s), 191KiB/s-219KiB/s (196kB/s-224kB/s), io=23.4MiB (24.5MB), run=28471-30051msec WRITE: bw=839KiB/s (859kB/s), 211KiB/s-220KiB/s (216kB/s-225kB/s), io=24.6MiB (25.8MB), run=28471-30051msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145118: Mon May 25 05:48:46 2026 read: IOPS=5, BW=85.1KiB/s (87.2kB/s)(5920KiB/69547msec) clat (msec): min=7, max=344, avg=40.48, stdev=40.67 lat (msec): min=7, max=344, avg=40.49, stdev=40.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 53], 90.00th=[ 84], 95.00th=[ 125], | 99.00th=[ 201], 99.50th=[ 313], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 254, per=26.35%, avg=89.85, stdev=54.23, samples=128 iops : min= 1, max= 15, avg= 4.81, stdev= 3.46, samples=128 write: IOPS=5, BW=91.6KiB/s (93.8kB/s)(6368KiB/69547msec); 0 zone resets clat (msec): min=45, max=712, avg=136.67, stdev=60.63 lat (msec): min=45, max=712, avg=136.68, stdev=60.63 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 104], 40.00th=[ 112], 50.00th=[ 124], 60.00th=[ 138], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 309], 99.50th=[ 347], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 31, max= 192, per=26.02%, avg=93.41, stdev=37.04, samples=133 iops : min= 1, max= 12, avg= 5.05, stdev= 2.38, samples=133 lat (msec) : 10=0.65%, 20=12.50%, 50=25.26%, 100=20.83%, 250=38.80% lat (msec) : 500=1.82%, 750=0.13% cpu : usr=0.06%, sys=1.64%, ctx=1417, 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=145119: Mon May 25 05:48:46 2026 read: IOPS=5, BW=81.9KiB/s (83.8kB/s)(5744KiB/70156msec) clat (msec): min=8, max=246, avg=36.40, stdev=34.85 lat (msec): min=8, max=246, avg=36.41, stdev=34.85 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 104], | 99.00th=[ 218], 99.50th=[ 228], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 31, max= 287, per=28.19%, avg=96.14, stdev=60.26, samples=116 iops : min= 1, max= 17, avg= 5.23, stdev= 3.83, samples=116 write: IOPS=5, BW=93.3KiB/s (95.5kB/s)(6544KiB/70156msec); 0 zone resets clat (msec): min=40, max=714, avg=139.26, stdev=63.88 lat (msec): min=40, max=714, avg=139.26, stdev=63.89 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 92], | 30.00th=[ 104], 40.00th=[ 117], 50.00th=[ 127], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 180], 90.00th=[ 211], 95.00th=[ 253], | 99.00th=[ 330], 99.50th=[ 401], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 30, max= 192, per=26.00%, avg=93.33, stdev=35.76, samples=136 iops : min= 1, max= 12, avg= 5.05, stdev= 2.31, samples=136 lat (msec) : 10=1.04%, 20=13.67%, 50=24.22%, 100=20.05%, 250=38.15% lat (msec) : 500=2.73%, 750=0.13% cpu : usr=0.04%, sys=1.60%, ctx=1437, 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=145120: Mon May 25 05:48:46 2026 read: IOPS=5, BW=93.6KiB/s (95.8kB/s)(6256KiB/66849msec) clat (msec): min=9, max=518, avg=38.29, stdev=39.21 lat (msec): min=9, max=518, avg=38.29, stdev=39.21 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 50], 90.00th=[ 81], 95.00th=[ 103], | 99.00th=[ 182], 99.50th=[ 201], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 30, max= 255, per=29.37%, avg=100.15, stdev=63.01, samples=123 iops : min= 1, max= 15, avg= 5.50, stdev= 3.96, samples=123 write: IOPS=5, BW=90.2KiB/s (92.4kB/s)(6032KiB/66849msec); 0 zone resets clat (msec): min=51, max=483, avg=137.44, stdev=62.96 lat (msec): min=51, max=483, avg=137.45, stdev=62.96 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 69], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 100], 40.00th=[ 113], 50.00th=[ 125], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 176], 90.00th=[ 215], 95.00th=[ 262], | 99.00th=[ 376], 99.50th=[ 456], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 31, max= 189, per=25.51%, avg=91.57, stdev=35.35, samples=129 iops : min= 1, max= 11, avg= 4.95, stdev= 2.31, samples=129 lat (msec) : 10=0.52%, 20=14.58%, 50=25.65%, 100=22.40%, 250=34.11% lat (msec) : 500=2.60%, 750=0.13% cpu : usr=0.05%, sys=1.53%, ctx=1420, 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=145121: Mon May 25 05:48:46 2026 read: IOPS=5, BW=87.1KiB/s (89.2kB/s)(6032KiB/69257msec) clat (msec): min=8, max=203, avg=37.02, stdev=30.91 lat (msec): min=8, max=203, avg=37.02, stdev=30.91 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 47], 90.00th=[ 75], 95.00th=[ 99], | 99.00th=[ 178], 99.50th=[ 201], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 22, max= 351, per=28.24%, avg=96.28, stdev=64.04, samples=123 iops : min= 1, max= 21, avg= 5.24, stdev= 4.04, samples=123 write: IOPS=5, BW=90.3KiB/s (92.5kB/s)(6256KiB/69257msec); 0 zone resets clat (msec): min=46, max=430, avg=140.97, stdev=57.20 lat (msec): min=46, max=430, avg=140.97, stdev=57.20 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 71], 10.00th=[ 81], 20.00th=[ 94], | 30.00th=[ 107], 40.00th=[ 117], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 159], 80.00th=[ 186], 90.00th=[ 218], 95.00th=[ 255], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 31, max= 160, per=25.07%, avg=90.00, stdev=37.10, samples=137 iops : min= 1, max= 10, avg= 4.83, stdev= 2.39, samples=137 lat (msec) : 10=0.52%, 20=14.58%, 50=24.87%, 100=19.53%, 250=37.24% lat (msec) : 500=3.26% cpu : usr=0.05%, sys=1.64%, ctx=1393, 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=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=341KiB/s (350kB/s), 81.9KiB/s-93.6KiB/s (83.8kB/s-95.8kB/s), io=23.4MiB (24.5MB), run=66849-70156msec WRITE: bw=359KiB/s (368kB/s), 90.2KiB/s-93.3KiB/s (92.4kB/s-95.5kB/s), io=24.6MiB (25.8MB), run=66849-70156msec 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=145142: Mon May 25 05:48:59 2026 read: IOPS=2, BW=2381KiB/s (2439kB/s)(7168KiB/3010msec) clat (usec): min=557, max=487013, avg=192436.27, stdev=178870.32 lat (usec): min=558, max=487015, avg=192437.74, stdev=178870.13 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 578], | 30.00th=[105382], 40.00th=[105382], 50.00th=[156238], 60.00th=[295699], | 70.00th=[295699], 80.00th=[304088], 90.00th=[488637], 95.00th=[488637], | 99.00th=[488637], 99.50th=[488637], 99.90th=[488637], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 2019, max= 4031, per=61.15%, avg=3324.33, stdev=1131.74, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1701KiB/s (1742kB/s)(5120KiB/3010msec); 0 zone resets clat (msec): min=191, max=572, avg=326.20, stdev=156.77 lat (msec): min=192, max=573, avg=326.50, stdev=156.69 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 2019, max= 3663, per=33.85%, avg=2576.67, stdev=940.90, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=16.67% lat (msec) : 250=33.33%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=17.22%, ctx=201, 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=145143: Mon May 25 05:48:59 2026 read: IOPS=0, BW=544KiB/s (557kB/s)(2048KiB/3767msec) clat (usec): min=503, max=156991, avg=78747.28, stdev=110653.94 lat (usec): min=504, max=156993, avg=78748.98, stdev=110654.74 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[156238], | 70.00th=[156238], 80.00th=[156238], 90.00th=[156238], 95.00th=[156238], | 99.00th=[156238], 99.50th=[156238], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 1831, max= 1906, per=34.37%, avg=1868.50, stdev=53.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2718KiB/s (2784kB/s)(10.0MiB/3767msec); 0 zone resets clat (msec): min=149, max=703, avg=348.71, stdev=154.30 lat (msec): min=149, max=706, avg=349.17, stdev=154.94 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 161], | 30.00th=[ 257], 40.00th=[ 338], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 388], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 2015, max= 6131, per=39.25%, avg=2987.33, stdev=1672.54, samples=6 iops : min= 1, max= 5, avg= 2.33, stdev= 1.51, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.03%, sys=16.01%, ctx=143, 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=145144: Mon May 25 05:48:59 2026 read: IOPS=1, BW=1916KiB/s (1962kB/s)(6144KiB/3207msec) clat (msec): min=2, max=331, avg=178.53, stdev=132.69 lat (msec): min=2, max=331, avg=178.53, stdev=132.69 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 58], | 30.00th=[ 58], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 266], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 2015, max= 3663, per=44.93%, avg=2442.25, stdev=813.96, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1916KiB/s (1962kB/s)(6144KiB/3207msec); 0 zone resets clat (msec): min=218, max=557, avg=336.28, stdev=123.21 lat (msec): min=218, max=557, avg=336.54, stdev=123.17 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 338], | 70.00th=[ 380], 80.00th=[ 380], 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= 1831, max= 2048, per=25.95%, avg=1974.80, stdev=86.31, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 4=8.33%, 100=8.33%, 250=16.67%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=12.57%, ctx=130, 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=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=145145: Mon May 25 05:48:59 2026 read: IOPS=1, BW=1474KiB/s (1509kB/s)(5120KiB/3474msec) clat (usec): min=427, max=389176, avg=123040.35, stdev=176565.70 lat (usec): min=428, max=389177, avg=123041.52, stdev=176565.74 clat percentiles (usec): | 1.00th=[ 429], 5.00th=[ 429], 10.00th=[ 429], 20.00th=[ 429], | 30.00th=[ 562], 40.00th=[ 562], 50.00th=[ 3851], 60.00th=[ 3851], | 70.00th=[221250], 80.00th=[221250], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 7327, max= 7327, per=100.00%, avg=7327.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2063KiB/s (2113kB/s)(7168KiB/3474msec); 0 zone resets clat (msec): min=236, max=557, avg=390.95, stdev=118.67 lat (msec): min=236, max=557, avg=391.02, stdev=118.67 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 288], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 376], 60.00th=[ 380], | 70.00th=[ 380], 80.00th=[ 535], 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= 1946, max= 2048, per=26.46%, avg=2014.20, stdev=40.76, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=41.67%, 750=16.67% cpu : usr=0.06%, sys=11.92%, ctx=114, 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=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=5437KiB/s (5567kB/s), 544KiB/s-2381KiB/s (557kB/s-2439kB/s), io=20.0MiB (20.0MB), run=3010-3767msec WRITE: bw=7611KiB/s (7794kB/s), 1701KiB/s-2718KiB/s (1742kB/s-2784kB/s), io=28.0MiB (29.4MB), run=3010-3767msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145147: Mon May 25 05:49:00 2026 read: IOPS=1, BW=1624KiB/s (1663kB/s)(7168KiB/4414msec) clat (msec): min=94, max=741, avg=329.87, stdev=246.95 lat (msec): min=94, max=741, avg=329.87, stdev=246.95 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 132], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 567], 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= 1903, max= 3878, per=66.46%, avg=2901.75, stdev=1083.33, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1160KiB/s (1188kB/s)(5120KiB/4414msec); 0 zone resets clat (msec): min=173, max=820, avg=400.55, stdev=269.53 lat (msec): min=173, max=821, avg=400.64, stdev=269.55 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1917, max= 4055, per=54.68%, avg=3342.33, stdev=1234.37, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=5.26%, ctx=101, 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=145148: Mon May 25 05:49:00 2026 read: IOPS=0, BW=437KiB/s (447kB/s)(2048KiB/4690msec) clat (msec): min=140, max=201, avg=170.75, stdev=42.99 lat (msec): min=140, max=201, avg=170.76, stdev=42.99 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 201], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 201], 95.00th=[ 201], | 99.00th=[ 201], 99.50th=[ 201], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 1469, max= 2027, per=40.04%, avg=1748.00, stdev=394.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2183KiB/s (2236kB/s)(10.0MiB/4690msec); 0 zone resets clat (msec): min=124, max=1004, avg=425.58, stdev=304.18 lat (msec): min=124, max=1005, avg=425.76, stdev=304.18 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 146], | 30.00th=[ 264], 40.00th=[ 271], 50.00th=[ 275], 60.00th=[ 288], | 70.00th=[ 359], 80.00th=[ 760], 90.00th=[ 768], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1899, max= 4055, per=45.03%, avg=2752.40, stdev=1111.27, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 1000=16.67%, 2000=8.33% cpu : usr=0.00%, sys=4.18%, ctx=77, 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=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=145149: Mon May 25 05:49:00 2026 read: IOPS=1, BW=1523KiB/s (1559kB/s)(6144KiB/4035msec) clat (msec): min=98, max=225, avg=177.01, stdev=50.47 lat (msec): min=98, max=225, avg=177.01, stdev=50.47 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 133], | 30.00th=[ 133], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 197], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 226], 95.00th=[ 226], | 99.00th=[ 226], 99.50th=[ 226], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 2027, max= 4047, per=75.65%, avg=3303.00, stdev=1110.12, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1523KiB/s (1559kB/s)(6144KiB/4035msec); 0 zone resets clat (msec): min=241, max=671, avg=480.94, stdev=177.35 lat (msec): min=241, max=671, avg=481.09, stdev=177.40 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 550], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1903, max= 2027, per=32.09%, avg=1961.80, stdev=59.12, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=33.33% cpu : usr=0.00%, sys=3.97%, ctx=80, 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=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=145150: Mon May 25 05:49:00 2026 read: IOPS=1, BW=1143KiB/s (1171kB/s)(5120KiB/4478msec) clat (msec): min=70, max=678, avg=299.95, stdev=248.13 lat (msec): min=70, max=678, avg=299.95, stdev=248.13 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 209], 60.00th=[ 209], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1899, max= 4047, per=60.87%, avg=2657.67, stdev=1204.90, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1601KiB/s (1639kB/s)(7168KiB/4478msec); 0 zone resets clat (msec): min=230, max=741, avg=418.33, stdev=195.76 lat (msec): min=230, max=742, avg=418.44, stdev=195.79 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 241], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 363], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 575], 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= 1595, max= 4055, per=37.33%, avg=2281.80, stdev=1001.25, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=5.00%, ctx=101, 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=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=4367KiB/s (4472kB/s), 437KiB/s-1624KiB/s (447kB/s-1663kB/s), io=20.0MiB (20.0MB), run=4035-4690msec WRITE: bw=6113KiB/s (6260kB/s), 1160KiB/s-2183KiB/s (1188kB/s-2236kB/s), io=28.0MiB (29.4MB), run=4035-4690msec 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=145159: Mon May 25 05:49:13 2026 read: IOPS=1, BW=7091KiB/s (7261kB/s)(12.0MiB/1733msec) clat (msec): min=190, max=1053, avg=570.08, stdev=440.63 lat (msec): min=190, max=1053, avg=570.09, stdev=440.63 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min=10981, max=10981, per=100.00%, avg=10981.00, 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%, 2000=33.33% cpu : usr=0.00%, sys=6.93%, ctx=58, majf=0, minf=7 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=145160: Mon May 25 05:49:13 2026 read: IOPS=0, BW=1391KiB/s (1424kB/s)(4096KiB/2945msec) clat (nsec): min=421348k, max=421348k, avg=421347663.00, stdev= 0.00 lat (nsec): min=421351k, max=421351k, avg=421351128.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 6330, max= 6330, per=100.00%, avg=6330.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2782KiB/s (2848kB/s)(8192KiB/2945msec); 0 zone resets clat (msec): min=486, max=1904, avg=1195.38, stdev=1003.06 lat (msec): min=486, max=1905, avg=1195.82, stdev=1003.04 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 1905], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7488, max= 7488, per=67.30%, avg=7488.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.77%, ctx=60, 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=145162: Mon May 25 05:49:13 2026 write: IOPS=1, BW=4319KiB/s (4423kB/s)(12.0MiB/2845msec); 0 zone resets clat (msec): min=637, max=1299, avg=938.53, stdev=334.91 lat (msec): min=639, max=1299, avg=939.36, stdev=334.35 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7488, max= 8175, per=70.39%, avg=7831.50, stdev=485.78, 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=0.00%, sys=4.92%, ctx=57, majf=0, minf=7 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=145163: Mon May 25 05:49:13 2026 write: IOPS=1, BW=5073KiB/s (5195kB/s)(12.0MiB/2422msec); 0 zone resets clat (msec): min=461, max=1412, avg=779.57, stdev=548.35 lat (msec): min=462, max=1413, avg=780.20, stdev=548.06 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 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= 6282, max= 7488, per=61.88%, avg=6885.00, stdev=852.77, 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=4.96%, ctx=60, 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=5563KiB/s (5697kB/s), 1391KiB/s-7091KiB/s (1424kB/s-7261kB/s), io=16.0MiB (16.8MB), run=1733-2945msec WRITE: bw=10.9MiB/s (11.4MB/s), 2782KiB/s-5073KiB/s (2848kB/s-5195kB/s), io=32.0MiB (33.6MB), run=2422-2945msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145165: Mon May 25 05:49:15 2026 read: IOPS=1, BW=4231KiB/s (4333kB/s)(12.0MiB/2904msec) clat (msec): min=740, max=1135, avg=960.99, stdev=201.81 lat (msec): min=740, max=1135, avg=960.99, stdev=201.81 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 1011], 50.00th=[ 1011], 60.00th=[ 1011], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7816, max= 8143, per=100.00%, avg=7979.50, stdev=231.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=11.78%, ctx=357, 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=145166: Mon May 25 05:49:15 2026 read: IOPS=0, BW=1187KiB/s (1215kB/s)(4096KiB/3451msec) clat (nsec): min=769545k, max=769545k, avg=769545125.00, stdev= 0.00 lat (nsec): min=769547k, max=769547k, avg=769547035.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7816, max= 7816, per=100.00%, avg=7816.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2374KiB/s (2431kB/s)(8192KiB/3451msec); 0 zone resets clat (msec): min=1062, max=1616, avg=1339.43, stdev=391.21 lat (msec): min=1063, max=1616, avg=1339.91, stdev=391.36 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1620], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8143, max= 8143, per=95.06%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.09%, sys=5.30%, ctx=123, 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=145167: Mon May 25 05:49:15 2026 write: IOPS=0, BW=3213KiB/s (3290kB/s)(12.0MiB/3825msec); 0 zone resets clat (msec): min=1164, max=1328, avg=1261.87, stdev=86.48 lat (msec): min=1164, max=1329, avg=1262.34, stdev=86.37 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7501, max= 8031, per=90.66%, avg=7766.00, stdev=374.77, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=4.21%, ctx=82, 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=145168: Mon May 25 05:49:15 2026 write: IOPS=0, BW=3644KiB/s (3732kB/s)(12.0MiB/3372msec); 0 zone resets clat (msec): min=492, max=1530, avg=1123.14, stdev=553.91 lat (msec): min=492, max=1530, avg=1123.48, stdev=553.91 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7501, max= 8110, per=91.12%, avg=7805.50, stdev=430.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.38%, ctx=48, 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=4748KiB/s (4862kB/s), 1187KiB/s-4231KiB/s (1215kB/s-4333kB/s), io=16.0MiB (16.8MB), run=2904-3451msec WRITE: bw=8567KiB/s (8772kB/s), 2374KiB/s-3644KiB/s (2431kB/s-3732kB/s), io=32.0MiB (33.6MB), run=3372-3825msec