== sanity test 398b: DIO and buffer IO race ============== 23:26:32 (1770438392) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.06721 s, 16.4 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=195607: Fri Feb 6 23:27:52 2026 read: IOPS=20, BW=83.9KiB/s (85.0kB/s)(5992KiB/71380msec) clat (usec): min=264, max=654373, avg=25776.54, stdev=20361.11 lat (usec): min=264, max=654373, avg=25777.06, stdev=20361.12 clat percentiles (usec): | 1.00th=[ 734], 5.00th=[ 10028], 10.00th=[ 12649], 20.00th=[ 15401], | 30.00th=[ 17695], 40.00th=[ 20579], 50.00th=[ 23987], 60.00th=[ 26870], | 70.00th=[ 30016], 80.00th=[ 34341], 90.00th=[ 39584], 95.00th=[ 47449], | 99.00th=[ 66323], 99.50th=[ 72877], 99.90th=[100140], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 12, max= 183, per=24.95%, avg=83.84, stdev=20.84, samples=142 iops : min= 3, max= 45, avg=20.61, stdev= 5.23, samples=142 write: IOPS=22, BW=88.2KiB/s (90.3kB/s)(6296KiB/71380msec); 0 zone resets clat (usec): min=652, max=115979, avg=20684.24, stdev=15228.63 lat (usec): min=653, max=115980, avg=20684.90, stdev=15228.66 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 3326], 10.00th=[ 4752], 20.00th=[ 6063], | 30.00th=[ 10028], 40.00th=[ 14615], 50.00th=[ 17957], 60.00th=[ 21890], | 70.00th=[ 26608], 80.00th=[ 32900], 90.00th=[ 41157], 95.00th=[ 48497], | 99.00th=[ 64750], 99.50th=[ 78119], 99.90th=[106431], 99.95th=[115868], | 99.99th=[115868] bw ( KiB/s): min= 32, max= 215, per=25.17%, avg=88.60, stdev=28.63, samples=141 iops : min= 8, max= 53, avg=21.80, stdev= 7.15, samples=141 lat (usec) : 500=0.10%, 750=0.88%, 1000=0.81% lat (msec) : 2=0.52%, 4=1.89%, 10=13.70%, 20=29.26%, 50=48.76% lat (msec) : 100=3.94%, 250=0.10%, 750=0.03% cpu : usr=0.04%, sys=25.77%, ctx=10024, 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=195608: Fri Feb 6 23:27:52 2026 read: IOPS=21, BW=85.5KiB/s (87.5kB/s)(5940KiB/69496msec) clat (usec): min=80, max=124186, avg=24868.37, stdev=12205.77 lat (usec): min=80, max=124186, avg=24868.83, stdev=12205.78 clat percentiles (usec): | 1.00th=[ 734], 5.00th=[ 10552], 10.00th=[ 13042], 20.00th=[ 15401], | 30.00th=[ 17695], 40.00th=[ 20055], 50.00th=[ 23200], 60.00th=[ 25822], | 70.00th=[ 28967], 80.00th=[ 32900], 90.00th=[ 38536], 95.00th=[ 46400], | 99.00th=[ 65274], 99.50th=[ 74974], 99.90th=[ 99091], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 12, max= 151, per=25.40%, avg=85.34, stdev=20.89, samples=138 iops : min= 3, max= 37, avg=20.99, stdev= 5.21, samples=138 write: IOPS=22, BW=91.3KiB/s (93.5kB/s)(6348KiB/69496msec); 0 zone resets clat (usec): min=671, max=665989, avg=20400.01, stdev=21873.87 lat (usec): min=672, max=665990, avg=20400.62, stdev=21873.87 clat percentiles (usec): | 1.00th=[ 848], 5.00th=[ 3359], 10.00th=[ 4883], 20.00th=[ 6325], | 30.00th=[ 10159], 40.00th=[ 13960], 50.00th=[ 17171], 60.00th=[ 20841], | 70.00th=[ 25035], 80.00th=[ 31065], 90.00th=[ 40109], 95.00th=[ 47973], | 99.00th=[ 65799], 99.50th=[ 79168], 99.90th=[106431], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 31, max= 160, per=25.84%, avg=90.94, stdev=25.83, samples=138 iops : min= 7, max= 40, avg=22.39, stdev= 6.47, samples=138 lat (usec) : 100=0.03%, 250=0.07%, 500=0.07%, 750=0.49%, 1000=0.72% lat (msec) : 2=0.68%, 4=2.02%, 10=13.25%, 20=32.00%, 50=46.68% lat (msec) : 100=3.84%, 250=0.13%, 750=0.03% cpu : usr=0.03%, sys=26.33%, ctx=10040, 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=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=195609: Fri Feb 6 23:27:52 2026 read: IOPS=21, BW=85.2KiB/s (87.3kB/s)(6028KiB/70735msec) clat (usec): min=231, max=110264, avg=25159.29, stdev=12051.57 lat (usec): min=232, max=110264, avg=25159.77, stdev=12051.57 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 10683], 10.00th=[ 12911], 20.00th=[ 15795], | 30.00th=[ 18220], 40.00th=[ 20579], 50.00th=[ 23462], 60.00th=[ 26084], | 70.00th=[ 29492], 80.00th=[ 33162], 90.00th=[ 39060], 95.00th=[ 45876], | 99.00th=[ 64750], 99.50th=[ 74974], 99.90th=[109577], 99.95th=[110625], | 99.99th=[110625] bw ( KiB/s): min= 47, max= 128, per=25.48%, avg=85.63, stdev=20.18, samples=139 iops : min= 11, max= 32, avg=21.06, stdev= 5.03, samples=139 write: IOPS=22, BW=88.5KiB/s (90.6kB/s)(6260KiB/70735msec); 0 zone resets clat (usec): min=673, max=696353, avg=20844.22, stdev=22429.74 lat (usec): min=673, max=696354, avg=20844.83, stdev=22429.77 clat percentiles (usec): | 1.00th=[ 840], 5.00th=[ 4113], 10.00th=[ 5014], 20.00th=[ 6521], | 30.00th=[ 10421], 40.00th=[ 14222], 50.00th=[ 17695], 60.00th=[ 20841], | 70.00th=[ 26084], 80.00th=[ 31851], 90.00th=[ 40633], 95.00th=[ 46924], | 99.00th=[ 68682], 99.50th=[ 74974], 99.90th=[ 89654], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 23, max= 151, per=25.24%, avg=88.83, stdev=22.77, samples=139 iops : min= 5, max= 37, avg=21.86, stdev= 5.73, samples=139 lat (usec) : 250=0.03%, 500=0.07%, 750=0.94%, 1000=0.55% lat (msec) : 2=0.39%, 4=1.43%, 10=13.22%, 20=30.99%, 50=48.80% lat (msec) : 100=3.48%, 250=0.07%, 750=0.03% cpu : usr=0.03%, sys=26.03%, ctx=10130, 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=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=195610: Fri Feb 6 23:27:52 2026 read: IOPS=21, BW=85.4KiB/s (87.5kB/s)(6052KiB/70862msec) clat (usec): min=86, max=84172, avg=25324.50, stdev=12312.15 lat (usec): min=87, max=84172, avg=25324.97, stdev=12312.14 clat percentiles (usec): | 1.00th=[ 619], 5.00th=[10814], 10.00th=[12780], 20.00th=[15401], | 30.00th=[17695], 40.00th=[20055], 50.00th=[23200], 60.00th=[26608], | 70.00th=[30278], 80.00th=[34341], 90.00th=[40633], 95.00th=[46924], | 99.00th=[69731], 99.50th=[74974], 99.90th=[81265], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 39, max= 144, per=25.55%, avg=85.85, stdev=20.58, samples=140 iops : min= 9, max= 36, avg=21.12, stdev= 5.17, samples=140 write: IOPS=22, BW=88.0KiB/s (90.1kB/s)(6236KiB/70862msec); 0 zone resets clat (usec): min=686, max=691958, avg=20749.26, stdev=22564.30 lat (usec): min=686, max=691959, avg=20749.83, stdev=22564.30 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 3425], 10.00th=[ 4948], 20.00th=[ 6456], | 30.00th=[ 10421], 40.00th=[ 14484], 50.00th=[ 17171], 60.00th=[ 20841], | 70.00th=[ 25035], 80.00th=[ 31851], 90.00th=[ 41681], 95.00th=[ 49546], | 99.00th=[ 64226], 99.50th=[ 70779], 99.90th=[ 93848], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 39, max= 168, per=25.13%, avg=88.44, stdev=26.10, samples=140 iops : min= 9, max= 42, avg=21.76, stdev= 6.51, samples=140 lat (usec) : 100=0.03%, 250=0.10%, 500=0.03%, 750=1.27%, 1000=0.65% lat (msec) : 2=0.72%, 4=1.69%, 10=12.37%, 20=31.84%, 50=47.33% lat (msec) : 100=3.94%, 750=0.03% cpu : usr=0.02%, sys=25.93%, ctx=10150, 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=336KiB/s (344kB/s), 83.9KiB/s-85.5KiB/s (85.0kB/s-87.5kB/s), io=23.4MiB (24.6MB), run=69496-71380msec WRITE: bw=352KiB/s (361kB/s), 88.0KiB/s-91.3KiB/s (90.1kB/s-93.5kB/s), io=24.6MiB (25.7MB), run=69496-71380msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195603: Fri Feb 6 23:28:02 2026 read: IOPS=18, BW=73.8KiB/s (75.6kB/s)(5992KiB/81166msec) clat (msec): min=4, max=667, avg=24.47, stdev=24.15 lat (msec): min=4, max=667, avg=24.48, stdev=24.15 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 35], 90.00th=[ 50], 95.00th=[ 60], | 99.00th=[ 87], 99.50th=[ 95], 99.90th=[ 128], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 15, max= 288, per=25.02%, avg=73.81, stdev=43.78, samples=160 iops : min= 3, max= 72, avg=18.09, stdev=11.05, samples=160 write: IOPS=19, BW=77.6KiB/s (79.4kB/s)(6296KiB/81166msec); 0 zone resets clat (msec): min=5, max=124, avg=28.14, stdev=18.44 lat (msec): min=5, max=124, avg=28.14, stdev=18.44 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 54], 95.00th=[ 63], | 99.00th=[ 90], 99.50th=[ 106], 99.90th=[ 115], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 15, max= 272, per=25.12%, avg=77.61, stdev=44.81, samples=160 iops : min= 3, max= 68, avg=19.04, stdev=11.30, samples=160 lat (msec) : 10=15.66%, 20=33.82%, 50=39.49%, 100=10.61%, 250=0.39% lat (msec) : 750=0.03% cpu : usr=0.04%, sys=13.11%, ctx=6563, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=195604: Fri Feb 6 23:28:02 2026 read: IOPS=18, BW=73.2KiB/s (74.9kB/s)(5940KiB/81185msec) clat (msec): min=3, max=668, avg=23.54, stdev=23.83 lat (msec): min=3, max=668, avg=23.54, stdev=23.83 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 33], 90.00th=[ 47], 95.00th=[ 59], | 99.00th=[ 87], 99.50th=[ 100], 99.90th=[ 122], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 16, max= 296, per=24.83%, avg=73.26, stdev=46.21, samples=160 iops : min= 4, max= 74, avg=17.95, stdev=11.65, samples=160 write: IOPS=19, BW=78.2KiB/s (80.1kB/s)(6348KiB/81185msec); 0 zone resets clat (msec): min=5, max=129, avg=28.99, stdev=19.51 lat (msec): min=5, max=129, avg=28.99, stdev=19.51 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 45], 90.00th=[ 56], 95.00th=[ 66], | 99.00th=[ 99], 99.50th=[ 106], 99.90th=[ 128], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 24, max= 280, per=25.26%, avg=78.06, stdev=43.19, samples=160 iops : min= 6, max= 70, avg=19.15, stdev=10.89, samples=160 lat (msec) : 4=0.03%, 10=15.40%, 20=34.31%, 50=38.96%, 100=10.58% lat (msec) : 250=0.68%, 750=0.03% cpu : usr=0.05%, sys=13.15%, ctx=6651, 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=195605: Fri Feb 6 23:28:02 2026 read: IOPS=18, BW=75.1KiB/s (76.9kB/s)(6028KiB/80245msec) clat (msec): min=3, max=121, avg=23.55, stdev=17.05 lat (msec): min=3, max=121, avg=23.55, stdev=17.05 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 35], 90.00th=[ 47], 95.00th=[ 58], | 99.00th=[ 84], 99.50th=[ 94], 99.90th=[ 116], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 15, max= 288, per=25.48%, avg=75.15, stdev=45.74, samples=158 iops : min= 3, max= 72, avg=18.42, stdev=11.57, samples=158 write: IOPS=19, BW=78.0KiB/s (79.9kB/s)(6260KiB/80245msec); 0 zone resets clat (msec): min=5, max=674, avg=28.46, stdev=24.67 lat (msec): min=5, max=674, avg=28.46, stdev=24.67 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 54], 95.00th=[ 63], | 99.00th=[ 89], 99.50th=[ 107], 99.90th=[ 138], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 24, max= 288, per=25.19%, avg=77.84, stdev=42.82, samples=158 iops : min= 6, max= 72, avg=19.09, stdev=10.79, samples=158 lat (msec) : 4=0.07%, 10=15.40%, 20=34.51%, 50=39.45%, 100=10.06% lat (msec) : 250=0.49%, 750=0.03% cpu : usr=0.04%, sys=13.46%, ctx=6665, 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=195606: Fri Feb 6 23:28:02 2026 read: IOPS=18, BW=75.1KiB/s (76.9kB/s)(6052KiB/80571msec) clat (msec): min=2, max=117, avg=23.76, stdev=17.21 lat (msec): min=2, max=117, avg=23.77, stdev=17.21 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 36], 90.00th=[ 48], 95.00th=[ 59], | 99.00th=[ 84], 99.50th=[ 92], 99.90th=[ 115], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 7, max= 256, per=25.72%, avg=75.86, stdev=43.29, samples=158 iops : min= 1, max= 64, avg=18.60, stdev=10.93, samples=158 write: IOPS=19, BW=77.4KiB/s (79.3kB/s)(6236KiB/80571msec); 0 zone resets clat (msec): min=6, max=679, avg=28.48, stdev=24.77 lat (msec): min=6, max=679, avg=28.48, stdev=24.77 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 53], 95.00th=[ 61], | 99.00th=[ 97], 99.50th=[ 106], 99.90th=[ 140], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 16, max= 264, per=25.10%, avg=77.55, stdev=44.35, samples=159 iops : min= 4, max= 66, avg=19.03, stdev=11.18, samples=159 lat (msec) : 4=0.23%, 10=14.91%, 20=34.31%, 50=39.75%, 100=10.19% lat (msec) : 250=0.59%, 750=0.03% cpu : usr=0.04%, sys=13.38%, ctx=6566, 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=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=296KiB/s (303kB/s), 73.2KiB/s-75.1KiB/s (74.9kB/s-76.9kB/s), io=23.4MiB (24.6MB), run=80245-81185msec WRITE: bw=310KiB/s (317kB/s), 77.4KiB/s-78.2KiB/s (79.3kB/s-80.1kB/s), io=24.6MiB (25.7MB), run=80245-81185msec 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=195636: Fri Feb 6 23:28:32 2026 read: IOPS=17, BW=273KiB/s (280kB/s)(5920KiB/21649msec) clat (usec): min=87, max=87320, avg=30277.26, stdev=13886.55 lat (usec): min=87, max=87321, avg=30277.76, stdev=13886.55 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[10945], 10.00th=[15926], 20.00th=[19530], | 30.00th=[22676], 40.00th=[26084], 50.00th=[28705], 60.00th=[32375], | 70.00th=[36439], 80.00th=[40109], 90.00th=[46924], 95.00th=[52691], | 99.00th=[78119], 99.50th=[79168], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 127, max= 416, per=24.66%, avg=271.31, stdev=74.60, samples=42 iops : min= 7, max= 26, avg=16.26, stdev= 4.68, samples=42 write: IOPS=18, BW=294KiB/s (301kB/s)(6368KiB/21649msec); 0 zone resets clat (usec): min=3383, max=82202, avg=25988.85, stdev=14206.58 lat (usec): min=3383, max=82203, avg=25989.68, stdev=14206.58 clat percentiles (usec): | 1.00th=[ 4293], 5.00th=[ 7898], 10.00th=[ 9372], 20.00th=[13698], | 30.00th=[16909], 40.00th=[20055], 50.00th=[23725], 60.00th=[27657], | 70.00th=[30802], 80.00th=[36963], 90.00th=[45351], 95.00th=[54264], | 99.00th=[70779], 99.50th=[80217], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 95, max= 480, per=25.47%, avg=295.00, stdev=81.67, samples=42 iops : min= 5, max= 30, avg=17.74, stdev= 5.14, samples=42 lat (usec) : 100=0.13%, 500=0.26%, 750=1.17%, 1000=0.39% lat (msec) : 4=0.26%, 10=6.12%, 20=23.18%, 50=61.07%, 100=7.42% cpu : usr=0.03%, sys=29.58%, ctx=3302, 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=195637: Fri Feb 6 23:28:32 2026 read: IOPS=16, BW=264KiB/s (270kB/s)(5744KiB/21760msec) clat (usec): min=140, max=95168, avg=29795.74, stdev=13682.27 lat (usec): min=140, max=95168, avg=29796.27, stdev=13682.27 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[12649], 10.00th=[15795], 20.00th=[18744], | 30.00th=[22152], 40.00th=[25035], 50.00th=[28181], 60.00th=[31327], | 70.00th=[35390], 80.00th=[38536], 90.00th=[47973], 95.00th=[52167], | 99.00th=[79168], 99.50th=[92799], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 127, max= 478, per=23.84%, avg=262.23, stdev=64.08, samples=43 iops : min= 7, max= 29, avg=15.72, stdev= 4.02, samples=43 write: IOPS=18, BW=301KiB/s (308kB/s)(6544KiB/21760msec); 0 zone resets clat (usec): min=1162, max=79265, avg=26800.52, stdev=15661.83 lat (usec): min=1162, max=79266, avg=26801.44, stdev=15661.82 clat percentiles (usec): | 1.00th=[ 4113], 5.00th=[ 7767], 10.00th=[ 8717], 20.00th=[12780], | 30.00th=[16188], 40.00th=[19792], 50.00th=[23200], 60.00th=[27132], | 70.00th=[33162], 80.00th=[40633], 90.00th=[50594], 95.00th=[56886], | 99.00th=[66847], 99.50th=[71828], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 127, max= 576, per=25.94%, avg=300.40, stdev=104.31, samples=43 iops : min= 7, max= 36, avg=18.09, stdev= 6.60, samples=43 lat (usec) : 250=0.26%, 500=0.13%, 750=0.91% lat (msec) : 2=0.39%, 4=0.26%, 10=6.51%, 20=24.09%, 50=58.33% lat (msec) : 100=9.11% cpu : usr=0.03%, sys=29.56%, ctx=3444, 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=195639: Fri Feb 6 23:28:32 2026 read: IOPS=18, BW=291KiB/s (298kB/s)(6256KiB/21491msec) clat (usec): min=220, max=104218, avg=29549.32, stdev=13544.96 lat (usec): min=221, max=104219, avg=29549.83, stdev=13544.96 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 13042], 10.00th=[ 16188], 20.00th=[ 19792], | 30.00th=[ 22414], 40.00th=[ 25297], 50.00th=[ 27919], 60.00th=[ 30278], | 70.00th=[ 33817], 80.00th=[ 39060], 90.00th=[ 44827], 95.00th=[ 51643], | 99.00th=[ 76022], 99.50th=[ 94897], 99.90th=[104334], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 158, max= 478, per=26.45%, avg=290.95, stdev=73.08, samples=42 iops : min= 9, max= 29, avg=17.50, stdev= 4.68, samples=42 write: IOPS=17, BW=281KiB/s (287kB/s)(6032KiB/21491msec); 0 zone resets clat (usec): min=1161, max=85727, avg=26260.19, stdev=15325.73 lat (usec): min=1162, max=85728, avg=26261.01, stdev=15325.72 clat percentiles (usec): | 1.00th=[ 3326], 5.00th=[ 7767], 10.00th=[ 8979], 20.00th=[13698], | 30.00th=[16450], 40.00th=[19530], 50.00th=[22152], 60.00th=[26346], | 70.00th=[31327], 80.00th=[37487], 90.00th=[49021], 95.00th=[56361], | 99.00th=[69731], 99.50th=[81265], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 95, max= 446, per=23.94%, avg=277.24, stdev=71.40, samples=42 iops : min= 5, max= 27, avg=16.64, stdev= 4.47, samples=42 lat (usec) : 250=0.26%, 500=0.13%, 750=0.91%, 1000=0.13% lat (msec) : 2=0.52%, 4=0.13%, 10=5.99%, 20=22.79%, 50=61.07% lat (msec) : 100=7.94%, 250=0.13% cpu : usr=0.02%, sys=29.47%, ctx=3481, 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=195641: Fri Feb 6 23:28:32 2026 read: IOPS=17, BW=286KiB/s (293kB/s)(6032KiB/21085msec) clat (usec): min=223, max=97958, avg=28946.41, stdev=13616.46 lat (usec): min=224, max=97958, avg=28946.91, stdev=13616.47 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 6128], 10.00th=[16188], 20.00th=[18744], | 30.00th=[21627], 40.00th=[25035], 50.00th=[27657], 60.00th=[29754], | 70.00th=[34341], 80.00th=[37487], 90.00th=[44827], 95.00th=[53740], | 99.00th=[69731], 99.50th=[89654], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 128, max= 412, per=25.63%, avg=281.88, stdev=58.23, samples=41 iops : min= 8, max= 25, avg=16.93, stdev= 3.69, samples=41 write: IOPS=18, BW=297KiB/s (304kB/s)(6256KiB/21085msec); 0 zone resets clat (usec): min=1060, max=81404, avg=25738.14, stdev=14724.88 lat (usec): min=1061, max=81405, avg=25739.69, stdev=14725.08 clat percentiles (usec): | 1.00th=[ 3490], 5.00th=[ 7570], 10.00th=[ 8586], 20.00th=[12256], | 30.00th=[15795], 40.00th=[19530], 50.00th=[23200], 60.00th=[27395], | 70.00th=[32113], 80.00th=[36439], 90.00th=[46924], 95.00th=[55313], | 99.00th=[67634], 99.50th=[68682], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 160, max= 480, per=25.46%, avg=294.85, stdev=67.68, samples=41 iops : min= 10, max= 30, avg=17.76, stdev= 4.28, samples=41 lat (usec) : 250=0.13%, 500=0.13%, 750=1.30%, 1000=0.65% lat (msec) : 2=0.39%, 4=0.26%, 10=7.42%, 20=22.92%, 50=59.38% lat (msec) : 100=7.42% cpu : usr=0.06%, sys=29.82%, ctx=3276, 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=1101KiB/s (1127kB/s), 264KiB/s-291KiB/s (270kB/s-298kB/s), io=23.4MiB (24.5MB), run=21085-21760msec WRITE: bw=1158KiB/s (1186kB/s), 281KiB/s-301KiB/s (287kB/s-308kB/s), io=24.6MiB (25.8MB), run=21085-21760msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195638: Fri Feb 6 23:28:33 2026 read: IOPS=16, BW=261KiB/s (267kB/s)(5920KiB/22690msec) clat (msec): min=5, max=106, avg=26.44, stdev=17.05 lat (msec): min=5, max=106, avg=26.44, stdev=17.05 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 37], 90.00th=[ 51], 95.00th=[ 63], | 99.00th=[ 81], 99.50th=[ 102], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] bw ( KiB/s): min= 126, max= 736, per=24.91%, avg=260.02, stdev=116.68, samples=45 iops : min= 7, max= 46, avg=15.69, stdev= 7.42, samples=45 write: IOPS=17, BW=281KiB/s (287kB/s)(6368KiB/22690msec); 0 zone resets clat (msec): min=6, max=123, avg=32.23, stdev=18.21 lat (msec): min=6, max=123, avg=32.24, stdev=18.21 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 47], 90.00th=[ 58], 95.00th=[ 67], | 99.00th=[ 84], 99.50th=[ 87], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 64, max= 736, per=25.42%, avg=279.33, stdev=111.23, samples=45 iops : min= 4, max= 46, avg=16.89, stdev= 6.96, samples=45 lat (msec) : 10=5.73%, 20=35.55%, 50=45.18%, 100=13.15%, 250=0.39% cpu : usr=0.04%, sys=14.85%, ctx=1970, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=195640: Fri Feb 6 23:28:33 2026 read: IOPS=15, BW=251KiB/s (257kB/s)(5744KiB/22923msec) clat (msec): min=4, max=104, avg=27.01, stdev=17.62 lat (msec): min=4, max=104, avg=27.02, stdev=17.62 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 54], 95.00th=[ 64], | 99.00th=[ 80], 99.50th=[ 91], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 58, max= 736, per=23.38%, avg=244.13, stdev=129.43, samples=45 iops : min= 3, max= 46, avg=14.69, stdev= 8.10, samples=45 write: IOPS=17, BW=285KiB/s (292kB/s)(6544KiB/22923msec); 0 zone resets clat (msec): min=4, max=117, avg=31.99, stdev=19.46 lat (msec): min=4, max=117, avg=31.99, stdev=19.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 48], 90.00th=[ 60], 95.00th=[ 67], | 99.00th=[ 89], 99.50th=[ 101], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 95, max= 736, per=24.89%, avg=273.51, stdev=120.21, samples=45 iops : min= 5, max= 46, avg=16.53, stdev= 7.61, samples=45 lat (msec) : 10=9.11%, 20=30.86%, 50=44.40%, 100=15.10%, 250=0.52% cpu : usr=0.04%, sys=14.72%, ctx=1853, 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=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=195642: Fri Feb 6 23:28:33 2026 read: IOPS=17, BW=273KiB/s (280kB/s)(6256KiB/22912msec) clat (usec): min=4255, max=90358, avg=26193.66, stdev=17227.32 lat (usec): min=4256, max=90358, avg=26194.17, stdev=17227.32 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 7767], 10.00th=[10159], 20.00th=[12780], | 30.00th=[15270], 40.00th=[17695], 50.00th=[20579], 60.00th=[23725], | 70.00th=[30016], 80.00th=[38011], 90.00th=[53740], 95.00th=[62653], | 99.00th=[79168], 99.50th=[85459], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 63, max= 926, per=25.67%, avg=268.00, stdev=151.05, samples=45 iops : min= 3, max= 57, avg=16.18, stdev= 9.50, samples=45 write: IOPS=16, BW=263KiB/s (270kB/s)(6032KiB/22912msec); 0 zone resets clat (usec): min=4948, max=97811, avg=33556.50, stdev=19738.09 lat (usec): min=4949, max=97812, avg=33557.48, stdev=19738.06 clat percentiles (usec): | 1.00th=[ 6128], 5.00th=[ 9110], 10.00th=[11994], 20.00th=[15270], | 30.00th=[19792], 40.00th=[24511], 50.00th=[28705], 60.00th=[35390], | 70.00th=[41157], 80.00th=[50594], 90.00th=[63177], 95.00th=[72877], | 99.00th=[88605], 99.50th=[94897], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 64, max= 640, per=22.96%, avg=252.38, stdev=92.69, samples=45 iops : min= 4, max= 40, avg=15.20, stdev= 5.84, samples=45 lat (msec) : 10=8.20%, 20=30.34%, 50=44.92%, 100=16.54% cpu : usr=0.03%, sys=14.44%, ctx=1901, 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=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=195643: Fri Feb 6 23:28:33 2026 read: IOPS=16, BW=264KiB/s (271kB/s)(6032KiB/22820msec) clat (msec): min=4, max=102, avg=27.32, stdev=17.64 lat (msec): min=4, max=102, avg=27.32, stdev=17.64 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 54], 95.00th=[ 66], | 99.00th=[ 89], 99.50th=[ 93], 99.90th=[ 103], 99.95th=[ 103], | 99.99th=[ 103] bw ( KiB/s): min= 63, max= 832, per=24.73%, avg=258.13, stdev=119.90, samples=45 iops : min= 3, max= 52, avg=15.56, stdev= 7.64, samples=45 write: IOPS=17, BW=274KiB/s (281kB/s)(6256KiB/22820msec); 0 zone resets clat (usec): min=5716, max=85667, avg=31706.50, stdev=18311.41 lat (usec): min=5717, max=85668, avg=31707.43, stdev=18311.39 clat percentiles (usec): | 1.00th=[ 7308], 5.00th=[ 9110], 10.00th=[11076], 20.00th=[14615], | 30.00th=[18744], 40.00th=[23462], 50.00th=[27919], 60.00th=[33817], | 70.00th=[40633], 80.00th=[47449], 90.00th=[56886], 95.00th=[68682], | 99.00th=[82314], 99.50th=[85459], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 127, max= 768, per=24.52%, avg=269.42, stdev=127.57, samples=45 iops : min= 7, max= 48, avg=16.27, stdev= 8.02, samples=45 lat (msec) : 10=9.38%, 20=29.95%, 50=46.35%, 100=14.19%, 250=0.13% cpu : usr=0.03%, sys=14.46%, ctx=1882, 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=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=1045KiB/s (1070kB/s), 251KiB/s-273KiB/s (257kB/s-280kB/s), io=23.4MiB (24.5MB), run=22690-22923msec WRITE: bw=1099KiB/s (1126kB/s), 263KiB/s-285KiB/s (270kB/s-292kB/s), io=24.6MiB (25.8MB), run=22690-22923msec 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=195651: Fri Feb 6 23:28:41 2026 read: IOPS=4, BW=4494KiB/s (4602kB/s)(7168KiB/1595msec) clat (msec): min=38, max=327, avg=102.39, stdev=101.32 lat (msec): min=38, max=327, avg=102.39, stdev=101.32 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 39], 10.00th=[ 39], 20.00th=[ 54], | 30.00th=[ 58], 40.00th=[ 58], 50.00th=[ 59], 60.00th=[ 79], | 70.00th=[ 79], 80.00th=[ 105], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 8767, max= 8767, per=100.00%, avg=8767.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=3, BW=3210KiB/s (3287kB/s)(5120KiB/1595msec); 0 zone resets clat (msec): min=46, max=326, avg=169.96, stdev=105.44 lat (msec): min=46, max=326, avg=170.02, stdev=105.43 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 47], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 1753, max= 6035, per=32.30%, avg=3894.00, stdev=3027.83, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 50=16.67%, 100=33.33%, 250=33.33%, 500=16.67% cpu : usr=0.00%, sys=25.28%, ctx=114, 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=195652: Fri Feb 6 23:28:41 2026 read: IOPS=1, BW=1140KiB/s (1168kB/s)(2048KiB/1796msec) clat (msec): min=53, max=515, avg=284.52, stdev=326.43 lat (msec): min=53, max=515, avg=284.52, stdev=326.43 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 54], | 30.00th=[ 54], 40.00th=[ 54], 50.00th=[ 54], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1750, max= 2043, per=22.02%, avg=1896.50, stdev=207.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=5, BW=5702KiB/s (5838kB/s)(10.0MiB/1796msec); 0 zone resets clat (msec): min=49, max=309, avg=120.42, stdev=86.68 lat (msec): min=49, max=309, avg=120.48, stdev=86.69 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 56], | 30.00th=[ 59], 40.00th=[ 61], 50.00th=[ 62], 60.00th=[ 83], | 70.00th=[ 157], 80.00th=[ 165], 90.00th=[ 205], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 2011, max= 7001, per=41.87%, avg=5047.67, stdev=2665.56, samples=3 iops : min= 1, max= 6, avg= 4.00, stdev= 2.65, samples=3 lat (msec) : 50=8.33%, 100=50.00%, 250=25.00%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=22.40%, ctx=75, 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=195653: Fri Feb 6 23:28:41 2026 read: IOPS=2, BW=2584KiB/s (2646kB/s)(6144KiB/2378msec) clat (msec): min=58, max=518, avg=216.85, stdev=169.95 lat (msec): min=58, max=518, avg=216.85, stdev=169.95 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 69], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 201], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1753, max= 6131, per=38.30%, avg=3298.33, stdev=2456.55, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=2, BW=2584KiB/s (2646kB/s)(6144KiB/2378msec); 0 zone resets clat (msec): min=55, max=579, avg=177.88, stdev=198.60 lat (msec): min=55, max=579, avg=177.93, stdev=198.59 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 83], | 30.00th=[ 83], 40.00th=[ 95], 50.00th=[ 95], 60.00th=[ 125], | 70.00th=[ 132], 80.00th=[ 132], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 2011, max= 5260, per=25.75%, avg=3104.67, stdev=1866.64, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=41.67%, 250=33.33%, 500=8.33%, 750=16.67% cpu : usr=0.00%, sys=17.54%, ctx=112, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=195654: Fri Feb 6 23:28:41 2026 read: IOPS=2, BW=2881KiB/s (2950kB/s)(5120KiB/1777msec) clat (msec): min=55, max=401, avg=164.00, stdev=135.99 lat (msec): min=55, max=401, avg=164.00, stdev=135.99 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 118], 60.00th=[ 118], | 70.00th=[ 131], 80.00th=[ 131], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 8047, max= 8047, per=93.44%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=3, BW=4034KiB/s (4131kB/s)(7168KiB/1777msec); 0 zone resets clat (msec): min=47, max=366, avg=133.61, stdev=108.08 lat (msec): min=47, max=366, avg=133.67, stdev=108.09 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 71], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 103], 60.00th=[ 120], | 70.00th=[ 120], 80.00th=[ 153], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 4087, max= 7198, per=46.80%, avg=5642.50, stdev=2199.81, samples=2 iops : min= 3, max= 7, avg= 5.00, stdev= 2.83, samples=2 lat (msec) : 50=8.33%, 100=25.00%, 250=50.00%, 500=16.67% cpu : usr=0.00%, sys=25.06%, ctx=142, 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=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=8612KiB/s (8819kB/s), 1140KiB/s-4494KiB/s (1168kB/s-4602kB/s), io=20.0MiB (20.0MB), run=1595-2378msec WRITE: bw=11.8MiB/s (12.3MB/s), 2584KiB/s-5702KiB/s (2646kB/s-5838kB/s), io=28.0MiB (29.4MB), run=1595-2378msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195656: Fri Feb 6 23:28:41 2026 read: IOPS=3, BW=3303KiB/s (3383kB/s)(7168KiB/2170msec) clat (usec): min=806, max=262558, avg=155022.12, stdev=85228.75 lat (usec): min=806, max=262559, avg=155023.07, stdev=85228.74 clat percentiles (usec): | 1.00th=[ 807], 5.00th=[ 807], 10.00th=[ 807], 20.00th=[127402], | 30.00th=[135267], 40.00th=[135267], 50.00th=[139461], 60.00th=[187696], | 70.00th=[187696], 80.00th=[231736], 90.00th=[263193], 95.00th=[263193], | 99.00th=[263193], 99.50th=[263193], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 1939, max= 5077, per=33.89%, avg=2770.75, stdev=1538.19, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=2, BW=2359KiB/s (2416kB/s)(5120KiB/2170msec); 0 zone resets clat (msec): min=110, max=329, avg=216.59, stdev=91.99 lat (msec): min=110, max=329, avg=216.62, stdev=91.98 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 2019, max= 3878, per=23.14%, avg=2648.33, stdev=1065.02, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 1000=8.33% lat (msec) : 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=56.25%, ctx=899, 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=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=195657: Fri Feb 6 23:28:41 2026 read: IOPS=0, BW=818KiB/s (837kB/s)(2048KiB/2505msec) clat (msec): min=131, max=231, avg=181.87, stdev=70.69 lat (msec): min=131, max=231, avg=181.88, stdev=70.69 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 132], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 1712, max= 1939, per=22.33%, avg=1825.50, stdev=160.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=4088KiB/s (4186kB/s)(10.0MiB/2505msec); 0 zone resets clat (msec): min=116, max=365, avg=213.86, stdev=85.01 lat (msec): min=116, max=365, avg=213.93, stdev=84.99 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 132], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 186], 60.00th=[ 205], | 70.00th=[ 271], 80.00th=[ 288], 90.00th=[ 292], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 3878, max= 6144, per=46.84%, avg=5360.33, stdev=1284.44, samples=3 iops : min= 3, max= 6, avg= 4.67, stdev= 1.53, samples=3 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.04%, sys=56.27%, ctx=654, 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=195658: Fri Feb 6 23:28:41 2026 read: IOPS=2, BW=2667KiB/s (2731kB/s)(6144KiB/2304msec) clat (usec): min=785, max=421554, avg=149664.28, stdev=157956.18 lat (usec): min=785, max=421554, avg=149664.98, stdev=157956.08 clat percentiles (usec): | 1.00th=[ 783], 5.00th=[ 783], 10.00th=[ 783], 20.00th=[ 906], | 30.00th=[ 906], 40.00th=[100140], 50.00th=[100140], 60.00th=[162530], | 70.00th=[212861], 80.00th=[212861], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 4096, max= 5818, per=60.64%, avg=4957.00, stdev=1217.64, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2667KiB/s (2731kB/s)(6144KiB/2304msec); 0 zone resets clat (msec): min=95, max=445, avg=234.06, stdev=124.99 lat (msec): min=95, max=445, avg=234.10, stdev=125.00 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 218], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 1732, max= 4039, per=21.31%, avg=2439.50, stdev=1074.36, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 1000=16.67% lat (msec) : 100=16.67%, 250=41.67%, 500=25.00% cpu : usr=0.00%, sys=45.55%, ctx=666, 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=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=195659: Fri Feb 6 23:28:41 2026 read: IOPS=2, BW=2056KiB/s (2106kB/s)(5120KiB/2490msec) clat (usec): min=553, max=342797, avg=108515.26, stdev=145310.70 lat (usec): min=553, max=342799, avg=108516.00, stdev=145310.89 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[ 750], 40.00th=[ 750], 50.00th=[ 43779], 60.00th=[ 43779], | 70.00th=[154141], 80.00th=[154141], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 1939, max= 6144, per=49.44%, avg=4041.50, stdev=2973.38, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2879KiB/s (2948kB/s)(7168KiB/2490msec); 0 zone resets clat (msec): min=85, max=569, avg=274.73, stdev=177.14 lat (msec): min=85, max=569, avg=274.79, stdev=177.15 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 111], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 409], 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= 3453, max= 3878, per=32.03%, avg=3665.50, stdev=300.52, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (usec) : 750=16.67% lat (msec) : 50=8.33%, 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=37.81%, ctx=638, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8176KiB/s (8372kB/s), 818KiB/s-3303KiB/s (837kB/s-3383kB/s), io=20.0MiB (20.0MB), run=2170-2505msec WRITE: bw=11.2MiB/s (11.7MB/s), 2359KiB/s-4088KiB/s (2416kB/s-4186kB/s), io=28.0MiB (29.4MB), run=2170-2505msec 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=195665: Fri Feb 6 23:28:49 2026 read: IOPS=1, BW=7632KiB/s (7815kB/s)(12.0MiB/1610msec) clat (msec): min=467, max=470, avg=468.75, stdev= 1.36 lat (msec): min=467, max=470, avg=468.75, stdev= 1.36 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 5680, max= 8110, per=67.76%, avg=6895.00, stdev=1718.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=49.66%, ctx=2346, 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=195666: Fri Feb 6 23:28:49 2026 read: IOPS=0, BW=2777KiB/s (2844kB/s)(4096KiB/1475msec) clat (nsec): min=476745k, max=476745k, avg=476745026.00, stdev= 0.00 lat (nsec): min=476748k, max=476748k, avg=476747570.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 5680, max= 5680, per=55.82%, avg=5680.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5554KiB/s (5687kB/s)(8192KiB/1475msec); 0 zone resets clat (msec): min=312, max=486, avg=399.76, stdev=122.92 lat (msec): min=313, max=486, avg=400.03, stdev=122.95 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 8110, max= 8110, per=47.67%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=26.26%, ctx=925, 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=195667: Fri Feb 6 23:28:49 2026 write: IOPS=1, BW=6380KiB/s (6533kB/s)(12.0MiB/1926msec); 0 zone resets clat (msec): min=456, max=680, avg=569.91, stdev=111.86 lat (msec): min=456, max=680, avg=570.14, stdev=111.94 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8110, max= 8192, per=47.91%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=34.55%, ctx=120, 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=195668: Fri Feb 6 23:28:49 2026 write: IOPS=1, BW=7974KiB/s (8165kB/s)(12.0MiB/1541msec); 0 zone resets clat (msec): min=111, max=992, avg=431.69, stdev=486.95 lat (msec): min=112, max=992, avg=431.98, stdev=486.95 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 192], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7907, max= 8110, per=47.07%, avg=8008.50, stdev=143.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=66.67%, 1000=33.33% cpu : usr=0.00%, sys=26.75%, ctx=107, 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=9.94MiB/s (10.4MB/s), 2777KiB/s-7632KiB/s (2844kB/s-7815kB/s), io=16.0MiB (16.8MB), run=1475-1610msec WRITE: bw=16.6MiB/s (17.4MB/s), 5554KiB/s-7974KiB/s (5687kB/s-8165kB/s), io=32.0MiB (33.6MB), run=1475-1926msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195669: Fri Feb 6 23:28:49 2026 read: IOPS=1, BW=6197KiB/s (6345kB/s)(12.0MiB/1983msec) clat (msec): min=153, max=1077, avg=606.44, stdev=462.30 lat (msec): min=153, max=1077, avg=606.44, stdev=462.30 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=12.97%, ctx=73, 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=195670: Fri Feb 6 23:28:49 2026 read: IOPS=0, BW=2046KiB/s (2095kB/s)(4096KiB/2002msec) clat (nsec): min=921569k, max=921569k, avg=921568819.00, stdev= 0.00 lat (nsec): min=921570k, max=921570k, avg=921569766.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=4092KiB/s (4190kB/s)(8192KiB/2002msec); 0 zone resets clat (msec): min=395, max=505, avg=450.38, stdev=77.83 lat (msec): min=395, max=505, avg=450.59, stdev=77.95 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 8192, max= 8192, per=50.05%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.05%, sys=14.64%, 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=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=195671: Fri Feb 6 23:28:49 2026 write: IOPS=1, BW=6667KiB/s (6827kB/s)(12.0MiB/1843msec); 0 zone resets clat (msec): min=128, max=800, avg=560.02, stdev=374.11 lat (msec): min=129, max=800, avg=560.26, stdev=374.06 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8192, max= 8192, per=50.05%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.05%, sys=17.21%, ctx=88, 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=195672: Fri Feb 6 23:28:49 2026 write: IOPS=1, BW=7042KiB/s (7211kB/s)(12.0MiB/1745msec); 0 zone resets clat (msec): min=179, max=1114, avg=518.61, stdev=518.01 lat (msec): min=180, max=1115, avg=519.19, stdev=517.71 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8159, max= 8192, per=49.95%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.11%, sys=17.78%, ctx=83, 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=8184KiB/s (8380kB/s), 2046KiB/s-6197KiB/s (2095kB/s-6345kB/s), io=16.0MiB (16.8MB), run=1983-2002msec WRITE: bw=15.0MiB/s (16.8MB/s), 4092KiB/s-7042KiB/s (4190kB/s-7211kB/s), io=32.0MiB (33.6MB), run=1745-2002msec