== sanity test 398b: DIO and buffer IO race ============== 16:50:06 (1780087806) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.37763 s, 21.2 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=152197: Fri May 29 16:51:04 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(5992KiB/50665msec) clat (usec): min=25, max=583799, avg=18326.83, stdev=18026.83 lat (usec): min=26, max=583800, avg=18327.51, stdev=18026.85 clat percentiles (usec): | 1.00th=[ 82], 5.00th=[ 6063], 10.00th=[ 7832], 20.00th=[ 9896], | 30.00th=[ 11863], 40.00th=[ 13960], 50.00th=[ 16057], 60.00th=[ 18220], | 70.00th=[ 21103], 80.00th=[ 25035], 90.00th=[ 31065], 95.00th=[ 37487], | 99.00th=[ 54264], 99.50th=[ 59507], 99.90th=[111674], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 6, max= 200, per=25.09%, avg=118.18, stdev=33.06, samples=100 iops : min= 1, max= 50, avg=29.13, stdev= 8.38, samples=100 write: IOPS=31, BW=124KiB/s (127kB/s)(6296KiB/50665msec); 0 zone resets clat (usec): min=748, max=96018, avg=14634.19, stdev=11085.55 lat (usec): min=748, max=96019, avg=14635.08, stdev=11085.55 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 2737], 10.00th=[ 3359], 20.00th=[ 5014], | 30.00th=[ 7111], 40.00th=[ 9372], 50.00th=[11994], 60.00th=[14746], | 70.00th=[18482], 80.00th=[22938], 90.00th=[29492], 95.00th=[34866], | 99.00th=[47973], 99.50th=[54789], 99.90th=[93848], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 40, max= 208, per=25.41%, avg=125.26, stdev=38.44, samples=99 iops : min= 10, max= 52, avg=30.91, stdev= 9.68, samples=99 lat (usec) : 50=0.13%, 100=0.75%, 250=1.11%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=0.81%, 4=6.58%, 10=21.97%, 20=37.83%, 50=29.52% lat (msec) : 100=1.01%, 250=0.03%, 750=0.03% cpu : usr=0.12%, sys=29.03%, ctx=9888, 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=152198: Fri May 29 16:51:04 2026 read: IOPS=29, BW=117KiB/s (120kB/s)(5940KiB/50898msec) clat (usec): min=29, max=91833, avg=17993.37, stdev=10586.93 lat (usec): min=30, max=91834, avg=17994.07, stdev=10586.94 clat percentiles (usec): | 1.00th=[ 108], 5.00th=[ 6456], 10.00th=[ 7898], 20.00th=[ 9765], | 30.00th=[11863], 40.00th=[13829], 50.00th=[15926], 60.00th=[17957], | 70.00th=[21103], 80.00th=[25035], 90.00th=[31589], 95.00th=[36439], | 99.00th=[56886], 99.50th=[62129], 99.90th=[89654], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 6, max= 222, per=24.72%, avg=116.45, stdev=36.99, samples=101 iops : min= 1, max= 55, avg=28.70, stdev= 9.37, samples=101 write: IOPS=31, BW=125KiB/s (128kB/s)(6348KiB/50898msec); 0 zone resets clat (usec): min=726, max=583819, avg=15134.29, stdev=18162.92 lat (usec): min=727, max=583820, avg=15136.32, stdev=18163.34 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 2671], 10.00th=[ 3163], 20.00th=[ 5014], | 30.00th=[ 7177], 40.00th=[ 9503], 50.00th=[ 12256], 60.00th=[ 15008], | 70.00th=[ 18482], 80.00th=[ 23200], 90.00th=[ 29492], 95.00th=[ 36439], | 99.00th=[ 52167], 99.50th=[ 58983], 99.90th=[ 79168], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 47, max= 223, per=25.45%, avg=125.47, stdev=42.31, samples=100 iops : min= 11, max= 55, avg=30.96, stdev=10.63, samples=100 lat (usec) : 50=0.07%, 100=0.33%, 250=0.81%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.23% lat (msec) : 2=0.78%, 4=7.19%, 10=22.43%, 20=38.18%, 50=28.39% lat (msec) : 100=1.37%, 750=0.03% cpu : usr=0.10%, sys=28.89%, ctx=9827, 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=152199: Fri May 29 16:51:04 2026 read: IOPS=30, BW=121KiB/s (124kB/s)(6028KiB/49660msec) clat (usec): min=28, max=81295, avg=17306.59, stdev=10041.89 lat (usec): min=29, max=81296, avg=17308.28, stdev=10041.81 clat percentiles (usec): | 1.00th=[ 94], 5.00th=[ 5997], 10.00th=[ 7767], 20.00th=[ 9634], | 30.00th=[11207], 40.00th=[13435], 50.00th=[15533], 60.00th=[17695], | 70.00th=[20317], 80.00th=[23725], 90.00th=[30278], 95.00th=[36439], | 99.00th=[50070], 99.50th=[56361], 99.90th=[73925], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 55, max= 239, per=26.09%, avg=122.91, stdev=37.68, samples=97 iops : min= 13, max= 59, avg=30.32, stdev= 9.48, samples=97 write: IOPS=31, BW=126KiB/s (129kB/s)(6260KiB/49660msec); 0 zone resets clat (usec): min=799, max=584745, avg=14960.85, stdev=18216.94 lat (usec): min=800, max=584745, avg=14962.02, stdev=18216.94 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 2802], 10.00th=[ 3326], 20.00th=[ 4817], | 30.00th=[ 6980], 40.00th=[ 9634], 50.00th=[ 11994], 60.00th=[ 14877], | 70.00th=[ 17957], 80.00th=[ 22676], 90.00th=[ 29754], 95.00th=[ 36439], | 99.00th=[ 50594], 99.50th=[ 62129], 99.90th=[ 93848], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 13, max= 216, per=25.57%, avg=126.04, stdev=36.40, samples=98 iops : min= 3, max= 54, avg=31.10, stdev= 9.17, samples=98 lat (usec) : 50=0.10%, 100=0.59%, 250=1.11%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=0.75%, 4=6.97%, 10=22.36%, 20=40.04%, 50=26.79% lat (msec) : 100=1.01%, 750=0.03% cpu : usr=0.10%, sys=29.37%, ctx=9755, 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=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=152200: Fri May 29 16:51:04 2026 read: IOPS=29, BW=120KiB/s (123kB/s)(6052KiB/50588msec) clat (usec): min=43, max=84778, avg=17172.61, stdev=9884.11 lat (usec): min=44, max=84779, avg=17173.31, stdev=9884.15 clat percentiles (usec): | 1.00th=[ 89], 5.00th=[ 4686], 10.00th=[ 7635], 20.00th=[ 9503], | 30.00th=[11338], 40.00th=[13304], 50.00th=[15401], 60.00th=[17695], | 70.00th=[20055], 80.00th=[24249], 90.00th=[30278], 95.00th=[35390], | 99.00th=[46924], 99.50th=[51643], 99.90th=[65799], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 55, max= 199, per=25.67%, avg=120.92, stdev=36.58, samples=99 iops : min= 13, max= 49, avg=29.82, stdev= 9.20, samples=99 write: IOPS=30, BW=123KiB/s (126kB/s)(6236KiB/50588msec); 0 zone resets clat (usec): min=667, max=560999, avg=15681.98, stdev=18046.26 lat (usec): min=667, max=561000, avg=15683.48, stdev=18046.79 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 2868], 10.00th=[ 3326], 20.00th=[ 4948], | 30.00th=[ 7439], 40.00th=[ 10159], 50.00th=[ 12780], 60.00th=[ 15533], | 70.00th=[ 18744], 80.00th=[ 23987], 90.00th=[ 31589], 95.00th=[ 38011], | 99.00th=[ 52691], 99.50th=[ 61080], 99.90th=[103285], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 13, max= 231, per=24.99%, avg=123.20, stdev=42.84, samples=100 iops : min= 3, max= 57, avg=30.39, stdev=10.81, samples=100 lat (usec) : 50=0.16%, 100=0.62%, 250=1.30%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=0.68%, 4=6.93%, 10=21.22%, 20=39.81%, 50=27.99% lat (msec) : 100=0.81%, 250=0.03%, 750=0.03% cpu : usr=0.10%, sys=29.06%, ctx=10030, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=472KiB/s (483kB/s), 117KiB/s-121KiB/s (120kB/s-124kB/s), io=23.4MiB (24.6MB), run=49660-50898msec WRITE: bw=494KiB/s (506kB/s), 123KiB/s-126KiB/s (126kB/s-129kB/s), io=24.6MiB (25.7MB), run=49660-50898msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152193: Fri May 29 16:51:23 2026 read: IOPS=21, BW=85.7KiB/s (87.7kB/s)(5992KiB/69957msec) clat (msec): min=2, max=591, avg=14.80, stdev=19.47 lat (msec): min=2, max=591, avg=14.80, stdev=19.47 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 8], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 22], 90.00th=[ 32], 95.00th=[ 40], | 99.00th=[ 60], 99.50th=[ 67], 99.90th=[ 115], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 23, max= 224, per=25.20%, avg=86.17, stdev=48.00, samples=138 iops : min= 5, max= 56, avg=21.22, stdev=12.18, samples=138 write: IOPS=22, BW=89.0KiB/s (92.2kB/s)(6296KiB/69957msec); 0 zone resets clat (msec): min=12, max=163, avg=30.25, stdev=15.45 lat (msec): min=12, max=163, avg=30.25, stdev=15.45 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 19], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 51], 95.00th=[ 61], | 99.00th=[ 84], 99.50th=[ 95], 99.90th=[ 132], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 24, max= 200, per=25.27%, avg=90.46, stdev=44.87, samples=138 iops : min= 6, max= 50, avg=22.29, stdev=11.41, samples=138 lat (msec) : 4=6.02%, 10=17.15%, 20=28.71%, 50=41.54%, 100=6.35% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.07%, sys=11.90%, ctx=6346, 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=152194: Fri May 29 16:51:23 2026 read: IOPS=21, BW=84.7KiB/s (86.7kB/s)(5940KiB/70132msec) clat (msec): min=2, max=572, avg=14.90, stdev=19.38 lat (msec): min=2, max=572, avg=14.90, stdev=19.38 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 8], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 32], 95.00th=[ 43], | 99.00th=[ 65], 99.50th=[ 71], 99.90th=[ 90], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 15, max= 256, per=24.84%, avg=84.96, stdev=50.03, samples=138 iops : min= 3, max= 64, avg=20.91, stdev=12.69, samples=138 write: IOPS=22, BW=90.5KiB/s (92.7kB/s)(6348KiB/70132msec); 0 zone resets clat (msec): min=10, max=130, avg=30.13, stdev=15.09 lat (msec): min=10, max=130, avg=30.13, stdev=15.09 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 19], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 41], 90.00th=[ 52], 95.00th=[ 61], | 99.00th=[ 84], 99.50th=[ 95], 99.90th=[ 131], 99.95th=[ 131], | 99.99th=[ 131] bw ( KiB/s): min= 32, max= 192, per=25.30%, avg=90.58, stdev=44.65, samples=138 iops : min= 8, max= 48, avg=22.32, stdev=11.37, samples=138 lat (msec) : 4=6.35%, 10=17.09%, 20=28.22%, 50=41.50%, 100=6.61% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.09%, sys=11.85%, ctx=6227, 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=152195: Fri May 29 16:51:23 2026 read: IOPS=21, BW=85.9KiB/s (87.0kB/s)(6028KiB/70170msec) clat (msec): min=2, max=132, avg=15.16, stdev=13.93 lat (msec): min=2, max=132, avg=15.16, stdev=13.93 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 33], 95.00th=[ 42], | 99.00th=[ 64], 99.50th=[ 85], 99.90th=[ 116], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 24, max= 240, per=25.16%, avg=86.06, stdev=46.39, samples=138 iops : min= 6, max= 60, avg=21.19, stdev=11.77, samples=138 write: IOPS=22, BW=89.2KiB/s (91.4kB/s)(6260KiB/70170msec); 0 zone resets clat (msec): min=9, max=603, avg=30.12, stdev=20.77 lat (msec): min=9, max=603, avg=30.12, stdev=20.77 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 19], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 40], 90.00th=[ 48], 95.00th=[ 58], | 99.00th=[ 85], 99.50th=[ 100], 99.90th=[ 140], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 23, max= 192, per=24.90%, avg=89.13, stdev=44.01, samples=138 iops : min= 5, max= 48, avg=21.96, stdev=11.21, samples=138 lat (msec) : 4=5.50%, 10=17.45%, 20=28.39%, 50=42.87%, 100=5.50% lat (msec) : 250=0.26%, 750=0.03% cpu : usr=0.09%, sys=11.88%, ctx=6328, 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=152196: Fri May 29 16:51:23 2026 read: IOPS=21, BW=86.6KiB/s (88.7kB/s)(6052KiB/69852msec) clat (msec): min=2, max=132, avg=14.35, stdev=12.90 lat (msec): min=2, max=132, avg=14.35, stdev=12.90 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 8], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 22], 90.00th=[ 31], 95.00th=[ 40], | 99.00th=[ 59], 99.50th=[ 80], 99.90th=[ 112], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 7, max= 232, per=25.69%, avg=87.86, stdev=49.04, samples=137 iops : min= 1, max= 58, avg=21.64, stdev=12.44, samples=137 write: IOPS=22, BW=89.3KiB/s (91.4kB/s)(6236KiB/69852msec); 0 zone resets clat (msec): min=12, max=603, avg=30.76, stdev=21.35 lat (msec): min=12, max=603, avg=30.76, stdev=21.35 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 19], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 41], 90.00th=[ 52], 95.00th=[ 61], | 99.00th=[ 85], 99.50th=[ 99], 99.90th=[ 150], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 32, max= 184, per=25.09%, avg=89.83, stdev=43.34, samples=138 iops : min= 8, max= 46, avg=22.13, stdev=11.04, samples=138 lat (msec) : 4=5.96%, 10=17.45%, 20=28.87%, 50=41.41%, 100=5.99% lat (msec) : 250=0.29%, 750=0.03% cpu : usr=0.09%, sys=12.09%, ctx=6389, 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=342KiB/s (350kB/s), 84.7KiB/s-86.6KiB/s (86.7kB/s-88.7kB/s), io=23.4MiB (24.6MB), run=69852-70170msec WRITE: bw=358KiB/s (367kB/s), 89.2KiB/s-90.5KiB/s (91.4kB/s-92.7kB/s), io=24.6MiB (25.7MB), run=69852-70170msec 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=152225: Fri May 29 16:51:47 2026 read: IOPS=20, BW=328KiB/s (336kB/s)(5920KiB/18036msec) clat (usec): min=55, max=80643, avg=24443.39, stdev=14437.35 lat (usec): min=55, max=80644, avg=24444.12, stdev=14437.42 clat percentiles (usec): | 1.00th=[ 80], 5.00th=[ 133], 10.00th=[ 6718], 20.00th=[14091], | 30.00th=[16712], 40.00th=[19792], 50.00th=[23462], 60.00th=[26346], | 70.00th=[29230], 80.00th=[35390], 90.00th=[42730], 95.00th=[52167], | 99.00th=[66847], 99.50th=[78119], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 190, max= 512, per=24.07%, avg=319.60, stdev=89.04, samples=35 iops : min= 11, max= 32, avg=19.37, stdev= 5.65, samples=35 write: IOPS=22, BW=353KiB/s (362kB/s)(6368KiB/18036msec); 0 zone resets clat (msec): min=2, max=112, avg=22.38, stdev=15.08 lat (msec): min=2, max=112, avg=22.38, stdev=15.08 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 43], 95.00th=[ 55], | 99.00th=[ 70], 99.50th=[ 79], 99.90th=[ 113], 99.95th=[ 113], | 99.99th=[ 113] bw ( KiB/s): min= 95, max= 672, per=25.03%, avg=349.71, stdev=140.12, samples=35 iops : min= 5, max= 42, avg=21.26, stdev= 8.91, samples=35 lat (usec) : 100=0.65%, 250=3.52%, 500=0.26% lat (msec) : 2=0.13%, 4=0.52%, 10=12.89%, 20=28.26%, 50=47.66% lat (msec) : 100=5.99%, 250=0.13% cpu : usr=0.09%, sys=30.47%, ctx=3113, 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=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=152227: Fri May 29 16:51:47 2026 read: IOPS=20, BW=321KiB/s (329kB/s)(5744KiB/17900msec) clat (usec): min=90, max=73532, avg=24324.42, stdev=13069.37 lat (usec): min=91, max=73533, avg=24325.53, stdev=13069.53 clat percentiles (usec): | 1.00th=[ 108], 5.00th=[ 208], 10.00th=[10945], 20.00th=[13829], | 30.00th=[16909], 40.00th=[20317], 50.00th=[23200], 60.00th=[26608], | 70.00th=[31065], 80.00th=[33817], 90.00th=[39060], 95.00th=[49021], | 99.00th=[65799], 99.50th=[69731], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 128, max= 672, per=24.00%, avg=318.71, stdev=131.26, samples=35 iops : min= 8, max= 42, avg=19.31, stdev= 8.35, samples=35 write: IOPS=22, BW=366KiB/s (374kB/s)(6544KiB/17900msec); 0 zone resets clat (usec): min=1704, max=80310, avg=22288.99, stdev=14168.92 lat (usec): min=1705, max=80311, avg=22290.39, stdev=14168.96 clat percentiles (usec): | 1.00th=[ 3032], 5.00th=[ 5342], 10.00th=[ 6980], 20.00th=[ 8979], | 30.00th=[12387], 40.00th=[15664], 50.00th=[19268], 60.00th=[23200], | 70.00th=[28181], 80.00th=[34866], 90.00th=[43254], 95.00th=[48497], | 99.00th=[60556], 99.50th=[62129], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 160, max= 640, per=25.74%, avg=359.60, stdev=102.88, samples=35 iops : min= 10, max= 40, avg=21.89, stdev= 6.54, samples=35 lat (usec) : 100=0.26%, 250=2.60%, 500=0.13% lat (msec) : 2=0.26%, 4=0.52%, 10=13.02%, 20=29.69%, 50=48.96% lat (msec) : 100=4.56% cpu : usr=0.08%, sys=31.74%, ctx=3067, 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=152229: Fri May 29 16:51:47 2026 read: IOPS=21, BW=351KiB/s (360kB/s)(6256KiB/17819msec) clat (usec): min=73, max=133956, avg=23782.03, stdev=14826.71 lat (usec): min=73, max=133957, avg=23782.83, stdev=14826.74 clat percentiles (usec): | 1.00th=[ 79], 5.00th=[ 184], 10.00th=[ 4686], 20.00th=[ 13435], | 30.00th=[ 16450], 40.00th=[ 19268], 50.00th=[ 22152], 60.00th=[ 25297], | 70.00th=[ 28967], 80.00th=[ 34341], 90.00th=[ 41681], 95.00th=[ 48497], | 99.00th=[ 62129], 99.50th=[ 74974], 99.90th=[133694], 99.95th=[133694], | 99.99th=[133694] bw ( KiB/s): min= 159, max= 731, per=26.32%, avg=349.54, stdev=126.91, samples=35 iops : min= 9, max= 45, avg=21.26, stdev= 7.96, samples=35 write: IOPS=21, BW=339KiB/s (347kB/s)(6032KiB/17819msec); 0 zone resets clat (usec): min=1208, max=105435, avg=22279.54, stdev=14214.57 lat (usec): min=1209, max=105437, avg=22280.90, stdev=14214.66 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 33], 90.00th=[ 40], 95.00th=[ 47], | 99.00th=[ 69], 99.50th=[ 84], 99.90th=[ 106], 99.95th=[ 106], | 99.99th=[ 106] bw ( KiB/s): min= 159, max= 576, per=23.79%, avg=332.34, stdev=121.39, samples=35 iops : min= 9, max= 36, avg=20.17, stdev= 7.74, samples=35 lat (usec) : 100=0.91%, 250=3.39%, 500=0.65% lat (msec) : 2=0.26%, 4=0.39%, 10=10.94%, 20=30.60%, 50=48.96% lat (msec) : 100=3.65%, 250=0.26% cpu : usr=0.08%, sys=30.97%, ctx=2997, 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=152230: Fri May 29 16:51:47 2026 read: IOPS=21, BW=348KiB/s (357kB/s)(6032KiB/17317msec) clat (usec): min=74, max=78071, avg=24711.62, stdev=13920.51 lat (usec): min=74, max=78072, avg=24712.35, stdev=13920.55 clat percentiles (usec): | 1.00th=[ 110], 5.00th=[ 208], 10.00th=[ 9634], 20.00th=[14091], | 30.00th=[17433], 40.00th=[20055], 50.00th=[23200], 60.00th=[26608], | 70.00th=[30016], 80.00th=[35914], 90.00th=[43779], 95.00th=[48497], | 99.00th=[59507], 99.50th=[77071], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 127, max= 576, per=26.04%, avg=345.85, stdev=104.19, samples=34 iops : min= 7, max= 36, avg=21.00, stdev= 6.62, samples=34 write: IOPS=22, BW=361KiB/s (370kB/s)(6256KiB/17317msec); 0 zone resets clat (usec): min=1494, max=90662, avg=20052.04, stdev=13731.62 lat (usec): min=1495, max=90664, avg=20053.49, stdev=13731.68 clat percentiles (usec): | 1.00th=[ 3195], 5.00th=[ 4686], 10.00th=[ 6063], 20.00th=[ 8291], | 30.00th=[10290], 40.00th=[14091], 50.00th=[16909], 60.00th=[19792], | 70.00th=[24249], 80.00th=[29492], 90.00th=[38011], 95.00th=[50070], | 99.00th=[64750], 99.50th=[68682], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 126, max= 701, per=25.83%, avg=360.91, stdev=146.53, samples=34 iops : min= 7, max= 43, avg=21.94, stdev= 9.30, samples=34 lat (usec) : 100=0.39%, 250=3.12%, 500=0.52% lat (msec) : 2=0.13%, 4=0.91%, 10=14.19%, 20=30.86%, 50=45.05% lat (msec) : 100=4.82% cpu : usr=0.10%, sys=31.46%, ctx=3197, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1328KiB/s (1360kB/s), 321KiB/s-351KiB/s (329kB/s-360kB/s), io=23.4MiB (24.5MB), run=17317-18036msec WRITE: bw=1397KiB/s (1431kB/s), 339KiB/s-366KiB/s (347kB/s-374kB/s), io=24.6MiB (25.8MB), run=17317-18036msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152223: Fri May 29 16:51:52 2026 read: IOPS=16, BW=265KiB/s (272kB/s)(5920KiB/22309msec) clat (msec): min=3, max=101, avg=20.28, stdev=19.24 lat (msec): min=3, max=101, avg=20.28, stdev=19.24 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 49], 95.00th=[ 61], | 99.00th=[ 93], 99.50th=[ 94], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 95, max= 864, per=24.38%, avg=258.65, stdev=170.48, samples=43 iops : min= 5, max= 54, avg=15.60, stdev=10.85, samples=43 write: IOPS=17, BW=285KiB/s (292kB/s)(6368KiB/22309msec); 0 zone resets clat (msec): min=13, max=153, avg=37.13, stdev=21.22 lat (msec): min=13, max=153, avg=37.14, stdev=21.22 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 68], 95.00th=[ 80], | 99.00th=[ 111], 99.50th=[ 115], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 127, max= 736, per=25.48%, avg=284.60, stdev=166.38, samples=43 iops : min= 7, max= 46, avg=17.23, stdev=10.63, samples=43 lat (msec) : 4=2.21%, 10=16.41%, 20=23.70%, 50=42.32%, 100=14.19% lat (msec) : 250=1.17% cpu : usr=0.09%, sys=13.24%, ctx=1875, 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=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=152224: Fri May 29 16:51:52 2026 read: IOPS=15, BW=255KiB/s (261kB/s)(5744KiB/22558msec) clat (msec): min=2, max=106, avg=20.69, stdev=19.12 lat (msec): min=2, max=106, avg=20.70, stdev=19.12 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 15], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 50], 95.00th=[ 66], | 99.00th=[ 87], 99.50th=[ 93], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] bw ( KiB/s): min= 42, max= 832, per=23.87%, avg=253.25, stdev=165.83, samples=44 iops : min= 2, max= 52, avg=15.27, stdev=10.55, samples=44 write: IOPS=18, BW=290KiB/s (297kB/s)(6544KiB/22558msec); 0 zone resets clat (msec): min=10, max=154, avg=36.73, stdev=21.97 lat (msec): min=10, max=154, avg=36.73, stdev=21.97 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 30], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 49], 90.00th=[ 70], 95.00th=[ 81], | 99.00th=[ 112], 99.50th=[ 140], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 63, max= 704, per=25.48%, avg=284.57, stdev=163.64, samples=44 iops : min= 3, max= 44, avg=17.23, stdev=10.48, samples=44 lat (msec) : 4=2.60%, 10=14.84%, 20=21.74%, 50=46.88%, 100=12.89% lat (msec) : 250=1.04% cpu : usr=0.08%, sys=13.12%, ctx=1962, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152226: Fri May 29 16:51:52 2026 read: IOPS=17, BW=280KiB/s (287kB/s)(6256KiB/22354msec) clat (msec): min=2, max=112, avg=20.59, stdev=19.38 lat (msec): min=2, max=112, avg=20.59, stdev=19.38 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 33], 90.00th=[ 48], 95.00th=[ 65], | 99.00th=[ 85], 99.50th=[ 90], 99.90th=[ 113], 99.95th=[ 113], | 99.99th=[ 113] bw ( KiB/s): min= 64, max= 928, per=26.59%, avg=282.09, stdev=198.86, samples=44 iops : min= 4, max= 58, avg=17.09, stdev=12.62, samples=44 write: IOPS=16, BW=270KiB/s (276kB/s)(6032KiB/22354msec); 0 zone resets clat (msec): min=14, max=152, avg=37.67, stdev=21.42 lat (msec): min=14, max=152, avg=37.67, stdev=21.42 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 43], 80.00th=[ 53], 90.00th=[ 69], 95.00th=[ 81], | 99.00th=[ 106], 99.50th=[ 114], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 127, max= 704, per=24.19%, avg=270.25, stdev=151.93, samples=44 iops : min= 7, max= 44, avg=16.34, stdev= 9.75, samples=44 lat (msec) : 4=3.52%, 10=15.76%, 20=23.44%, 50=41.80%, 100=14.32% lat (msec) : 250=1.17% cpu : usr=0.08%, sys=13.46%, ctx=1914, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152228: Fri May 29 16:51:52 2026 read: IOPS=16, BW=268KiB/s (274kB/s)(6032KiB/22504msec) clat (msec): min=2, max=111, avg=22.21, stdev=20.53 lat (msec): min=2, max=111, avg=22.21, stdev=20.53 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 20], | 70.00th=[ 27], 80.00th=[ 37], 90.00th=[ 51], 95.00th=[ 65], | 99.00th=[ 92], 99.50th=[ 94], 99.90th=[ 112], 99.95th=[ 112], | 99.99th=[ 112] bw ( KiB/s): min= 95, max= 992, per=25.05%, avg=265.80, stdev=172.33, samples=44 iops : min= 5, max= 62, avg=16.07, stdev=10.96, samples=44 write: IOPS=17, BW=278KiB/s (285kB/s)(6256KiB/22504msec); 0 zone resets clat (msec): min=12, max=118, avg=35.83, stdev=19.87 lat (msec): min=12, max=118, avg=35.83, stdev=19.87 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 40], 80.00th=[ 48], 90.00th=[ 64], 95.00th=[ 81], | 99.00th=[ 113], 99.50th=[ 115], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 95, max= 704, per=24.71%, avg=276.05, stdev=157.56, samples=44 iops : min= 5, max= 44, avg=16.70, stdev=10.10, samples=44 lat (msec) : 4=3.12%, 10=15.49%, 20=20.70%, 50=46.35%, 100=13.41% lat (msec) : 250=0.91% cpu : usr=0.06%, sys=13.25%, ctx=1868, 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=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=1062KiB/s (1087kB/s), 255KiB/s-280KiB/s (261kB/s-287kB/s), io=23.4MiB (24.5MB), run=22309-22558msec WRITE: bw=1117KiB/s (1144kB/s), 270KiB/s-290KiB/s (276kB/s-297kB/s), io=24.6MiB (25.8MB), run=22309-22558msec 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=152240: Fri May 29 16:51:59 2026 read: IOPS=2, BW=2716KiB/s (2781kB/s)(7168KiB/2639msec) clat (msec): min=93, max=197, avg=133.65, stdev=43.72 lat (msec): min=93, max=197, avg=133.66, stdev=43.72 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 110], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 2048, max= 5180, per=50.08%, avg=3761.00, stdev=1586.56, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1940KiB/s (1987kB/s)(5120KiB/2639msec); 0 zone resets clat (msec): min=153, max=647, avg=334.10, stdev=230.24 lat (msec): min=153, max=647, avg=334.16, stdev=230.25 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1726, max= 3792, per=23.99%, avg=2522.00, stdev=1111.57, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=16.67%, 250=66.67%, 750=16.67% cpu : usr=0.00%, sys=41.36%, ctx=1047, 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=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=152241: Fri May 29 16:51:59 2026 read: IOPS=0, BW=831KiB/s (851kB/s)(2048KiB/2465msec) clat (usec): min=456, max=91737, avg=46097.02, stdev=64545.87 lat (usec): min=457, max=91740, avg=46098.93, stdev=64546.77 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 457], | 30.00th=[ 457], 40.00th=[ 457], 50.00th=[ 457], 60.00th=[91751], | 70.00th=[91751], 80.00th=[91751], 90.00th=[91751], 95.00th=[91751], | 99.00th=[91751], 99.50th=[91751], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 1723, max= 1896, per=24.09%, avg=1809.50, stdev=122.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=4, BW=4154KiB/s (4254kB/s)(10.0MiB/2465msec); 0 zone resets clat (msec): min=90, max=536, avg=236.46, stdev=157.25 lat (msec): min=90, max=536, avg=236.53, stdev=157.25 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 104], | 30.00th=[ 107], 40.00th=[ 121], 50.00th=[ 129], 60.00th=[ 197], | 70.00th=[ 321], 80.00th=[ 372], 90.00th=[ 393], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 1723, max= 6144, per=42.19%, avg=4435.50, stdev=2113.84, samples=4 iops : min= 1, max= 6, avg= 3.75, stdev= 2.22, samples=4 lat (usec) : 500=8.33% lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.12%, sys=42.98%, ctx=345, 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=152242: Fri May 29 16:51:59 2026 read: IOPS=2, BW=2253KiB/s (2307kB/s)(6144KiB/2727msec) clat (usec): min=321, max=1204.5k, avg=223751.81, stdev=483519.61 lat (usec): min=322, max=1204.5k, avg=223753.20, stdev=483519.84 clat percentiles (usec): | 1.00th=[ 322], 5.00th=[ 322], 10.00th=[ 322], | 20.00th=[ 502], 30.00th=[ 502], 40.00th=[ 562], | 50.00th=[ 562], 60.00th=[ 586], 70.00th=[ 135267], | 80.00th=[ 135267], 90.00th=[1199571], 95.00th=[1199571], | 99.00th=[1199571], 99.50th=[1199571], 99.90th=[1199571], | 99.95th=[1199571], 99.99th=[1199571] bw ( KiB/s): min= 4055, max= 6083, per=67.50%, avg=5069.00, stdev=1434.01, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2253KiB/s (2307kB/s)(6144KiB/2727msec); 0 zone resets clat (msec): min=118, max=505, avg=227.01, stdev=142.28 lat (msec): min=118, max=505, avg=227.06, stdev=142.29 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 186], | 70.00th=[ 241], 80.00th=[ 241], 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= 1896, max= 3442, per=22.33%, avg=2348.00, stdev=731.94, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=25.00% lat (msec) : 250=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=31.07%, ctx=446, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152243: Fri May 29 16:51:59 2026 read: IOPS=2, BW=2528KiB/s (2589kB/s)(5120KiB/2025msec) clat (usec): min=321, max=165063, avg=60240.03, stdev=82638.03 lat (usec): min=321, max=165064, avg=60241.09, stdev=82637.88 clat percentiles (usec): | 1.00th=[ 322], 5.00th=[ 322], 10.00th=[ 322], 20.00th=[ 322], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[135267], 80.00th=[135267], 90.00th=[164627], 95.00th=[164627], | 99.00th=[164627], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 7585, max= 7585, per=100.00%, avg=7585.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=3, BW=3540KiB/s (3625kB/s)(7168KiB/2025msec); 0 zone resets clat (msec): min=96, max=398, avg=244.17, stdev=102.77 lat (msec): min=97, max=398, avg=244.23, stdev=102.77 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 136], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 259], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 300], 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= 1896, max= 3531, per=23.63%, avg=2484.67, stdev=908.52, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33% cpu : usr=0.05%, sys=43.33%, ctx=650, 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=7510KiB/s (7690kB/s), 831KiB/s-2716KiB/s (851kB/s-2781kB/s), io=20.0MiB (20.0MB), run=2025-2727msec WRITE: bw=10.3MiB/s (10.8MB/s), 1940KiB/s-4154KiB/s (1987kB/s-4254kB/s), io=28.0MiB (29.4MB), run=2025-2727msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152245: Fri May 29 16:52:00 2026 read: IOPS=2, BW=2438KiB/s (2497kB/s)(7168KiB/2940msec) clat (msec): min=36, max=411, avg=170.03, stdev=158.78 lat (msec): min=36, max=411, avg=170.03, stdev=158.78 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 37], 10.00th=[ 37], 20.00th=[ 42], | 30.00th=[ 54], 40.00th=[ 54], 50.00th=[ 61], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 330], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 2048, max= 4079, per=50.04%, avg=3342.33, stdev=1124.49, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1741KiB/s (1783kB/s)(5120KiB/2940msec); 0 zone resets clat (msec): min=46, max=1288, avg=344.19, stdev=531.17 lat (msec): min=46, max=1289, avg=344.26, stdev=531.17 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 46], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 97], 60.00th=[ 97], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 2039, max= 2039, per=21.81%, avg=2039.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 50=25.00%, 100=33.33%, 250=8.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=13.85%, ctx=97, 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=152246: Fri May 29 16:52:00 2026 read: IOPS=0, BW=681KiB/s (697kB/s)(2048KiB/3007msec) clat (msec): min=51, max=308, avg=179.93, stdev=181.94 lat (msec): min=51, max=308, avg=179.93, stdev=181.94 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 52], | 30.00th=[ 52], 40.00th=[ 52], 50.00th=[ 52], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 1838, max= 2039, per=29.02%, avg=1938.50, stdev=142.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3405KiB/s (3487kB/s)(10.0MiB/3007msec); 0 zone resets clat (msec): min=47, max=1195, avg=252.70, stdev=352.37 lat (msec): min=47, max=1195, avg=252.77, stdev=352.37 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 50], | 30.00th=[ 80], 40.00th=[ 86], 50.00th=[ 134], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 171], 90.00th=[ 464], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 2048, max= 4096, per=36.44%, avg=3407.67, stdev=1177.54, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 lat (msec) : 50=16.67%, 100=25.00%, 250=33.33%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=13.44%, ctx=133, 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=152247: Fri May 29 16:52:00 2026 read: IOPS=2, BW=2199KiB/s (2252kB/s)(6144KiB/2794msec) clat (msec): min=28, max=898, avg=221.65, stdev=333.47 lat (msec): min=28, max=898, avg=221.65, stdev=333.47 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 28], 10.00th=[ 28], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 85], 50.00th=[ 85], 60.00th=[ 113], | 70.00th=[ 125], 80.00th=[ 125], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 4079, max= 4096, per=61.20%, avg=4087.50, stdev=12.02, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2199KiB/s (2252kB/s)(6144KiB/2794msec); 0 zone resets clat (msec): min=58, max=355, avg=225.23, stdev=113.24 lat (msec): min=58, max=355, avg=225.31, stdev=113.23 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 271], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1848, max= 4096, per=28.49%, avg=2664.00, stdev=1244.17, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 500=25.00%, 1000=8.33% cpu : usr=0.04%, sys=14.36%, ctx=300, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152248: Fri May 29 16:52:00 2026 read: IOPS=1, BW=1670KiB/s (1710kB/s)(5120KiB/3066msec) clat (msec): min=17, max=173, avg=101.57, stdev=60.03 lat (msec): min=17, max=173, avg=101.57, stdev=60.03 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 18], 10.00th=[ 18], 20.00th=[ 18], | 30.00th=[ 70], 40.00th=[ 70], 50.00th=[ 112], 60.00th=[ 112], | 70.00th=[ 136], 80.00th=[ 136], 90.00th=[ 174], 95.00th=[ 174], | 99.00th=[ 174], 99.50th=[ 174], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 2039, max= 2039, per=30.53%, avg=2039.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2338KiB/s (2394kB/s)(7168KiB/3066msec); 0 zone resets clat (msec): min=52, max=1263, avg=347.58, stdev=435.91 lat (msec): min=52, max=1263, avg=347.65, stdev=435.91 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 54], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 118], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 498], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1812, max= 4079, per=28.30%, avg=2646.33, stdev=1246.32, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 20=8.33%, 100=25.00%, 250=41.67%, 500=16.67%, 2000=8.33% cpu : usr=0.03%, sys=10.60%, ctx=103, 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=6680KiB/s (6840kB/s), 681KiB/s-2438KiB/s (697kB/s-2497kB/s), io=20.0MiB (20.0MB), run=2794-3066msec WRITE: bw=9352KiB/s (9576kB/s), 1741KiB/s-3405KiB/s (1783kB/s-3487kB/s), io=28.0MiB (29.4MB), run=2794-3066msec 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=152253: Fri May 29 16:52:07 2026 read: IOPS=2, BW=8828KiB/s (9039kB/s)(12.0MiB/1392msec) clat (msec): min=316, max=673, avg=459.45, stdev=188.74 lat (msec): min=316, max=673, avg=459.45, stdev=188.74 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 676], 80.00th=[ 676], 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= 7474, max= 8175, per=83.29%, avg=7824.50, stdev=495.68, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=15.89%, ctx=71, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152254: Fri May 29 16:52:07 2026 read: IOPS=0, BW=2349KiB/s (2405kB/s)(4096KiB/1744msec) clat (nsec): min=127631k, max=127631k, avg=127630786.00, stdev= 0.00 lat (nsec): min=127633k, max=127633k, avg=127632766.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 128], 60.00th=[ 128], | 70.00th=[ 128], 80.00th=[ 128], 90.00th=[ 128], 95.00th=[ 128], | 99.00th=[ 128], 99.50th=[ 128], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 7288, max= 7288, per=77.58%, avg=7288.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4697KiB/s (4810kB/s)(8192KiB/1744msec); 0 zone resets clat (msec): min=188, max=1399, avg=793.92, stdev=856.41 lat (msec): min=188, max=1399, avg=794.12, stdev=856.47 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 188], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7288, max= 7288, per=38.79%, avg=7288.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=17.44%, ctx=78, 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=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=152255: Fri May 29 16:52:07 2026 write: IOPS=1, BW=7271KiB/s (7446kB/s)(12.0MiB/1690msec); 0 zone resets clat (msec): min=342, max=924, avg=553.84, stdev=321.94 lat (msec): min=342, max=924, avg=554.16, stdev=322.05 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 8175, max= 8192, per=43.56%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=17.17%, ctx=76, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152256: Fri May 29 16:52:07 2026 write: IOPS=1, BW=7516KiB/s (7696kB/s)(12.0MiB/1635msec); 0 zone resets clat (msec): min=143, max=1302, avg=543.21, stdev=657.61 lat (msec): min=144, max=1302, avg=543.51, stdev=657.55 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 184], | 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=15226, max=15226, per=81.04%, avg=15226.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=17.87%, ctx=90, 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=9394KiB/s (9620kB/s), 2349KiB/s-8828KiB/s (2405kB/s-9039kB/s), io=16.0MiB (16.8MB), run=1392-1744msec WRITE: bw=18.3MiB/s (19.2MB/s), 4697KiB/s-7516KiB/s (4810kB/s-7696kB/s), io=32.0MiB (33.6MB), run=1635-1744msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152258: Fri May 29 16:52:07 2026 read: IOPS=2, BW=9.89MiB/s (10.4MB/s)(12.0MiB/1213msec) clat (msec): min=331, max=464, avg=403.77, stdev=67.71 lat (msec): min=331, max=464, avg=403.77, stdev=67.71 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 6206, max= 8192, per=60.24%, avg=7199.00, stdev=1404.31, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=100.00% cpu : usr=0.08%, sys=56.85%, ctx=2655, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152259: Fri May 29 16:52:07 2026 read: IOPS=0, BW=2988KiB/s (3059kB/s)(4096KiB/1371msec) clat (nsec): min=365745k, max=365745k, avg=365744534.00, stdev= 0.00 lat (nsec): min=365746k, max=365746k, avg=365746220.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 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= 5902, max= 5902, per=49.39%, avg=5902.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5975KiB/s (6119kB/s)(8192KiB/1371msec); 0 zone resets clat (msec): min=304, max=699, avg=501.97, stdev=279.78 lat (msec): min=304, max=700, avg=502.24, stdev=279.78 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 5902, max= 5902, per=30.49%, avg=5902.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=22.34%, ctx=1048, 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=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=152260: Fri May 29 16:52:07 2026 write: IOPS=1, BW=7258KiB/s (7432kB/s)(12.0MiB/1693msec); 0 zone resets clat (msec): min=78, max=1158, avg=563.79, stdev=548.19 lat (msec): min=78, max=1158, avg=564.02, stdev=548.16 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8192, max= 8192, per=42.33%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.06%, sys=12.29%, ctx=42, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152261: Fri May 29 16:52:07 2026 write: IOPS=1, BW=7628KiB/s (7811kB/s)(12.0MiB/1611msec); 0 zone resets clat (msec): min=154, max=1008, avg=536.14, stdev=434.55 lat (msec): min=154, max=1009, avg=536.42, stdev=434.55 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 5944, max= 5944, per=30.71%, avg=5944.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=15.09%, ctx=73, 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=11.7MiB/s (12.2MB/s), 2988KiB/s-9.89MiB/s (3059kB/s-10.4MB/s), io=16.0MiB (16.8MB), run=1213-1371msec WRITE: bw=18.9MiB/s (19.8MB/s), 5975KiB/s-7628KiB/s (6119kB/s-7811kB/s), io=32.0MiB (33.6MB), run=1371-1693msec