== sanity test 398b: DIO and buffer IO race ============== 17:16:33 (1788729393) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.28618 s, 15.3 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146091: Sun Sep 6 17:17:52 2026 read: IOPS=21, BW=87.8KiB/s (89.9kB/s)(5992KiB/68237msec) clat (usec): min=33, max=677425, avg=21951.74, stdev=23409.30 lat (usec): min=33, max=677427, avg=21956.71, stdev=23414.01 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 83], 10.00th=[ 6587], 20.00th=[ 10814], | 30.00th=[ 13173], 40.00th=[ 15270], 50.00th=[ 17433], 60.00th=[ 21365], | 70.00th=[ 25560], 80.00th=[ 32113], 90.00th=[ 41157], 95.00th=[ 50594], | 99.00th=[ 80217], 99.50th=[ 89654], 99.90th=[183501], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 8, max= 176, per=25.04%, avg=87.39, stdev=31.70, samples=135 iops : min= 2, max= 44, avg=21.36, stdev= 7.93, samples=135 write: IOPS=23, BW=92.3KiB/s (94.5kB/s)(6296KiB/68237msec); 0 zone resets clat (usec): min=653, max=288675, avg=22309.57, stdev=23446.68 lat (usec): min=655, max=288678, avg=22312.63, stdev=23445.87 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1385], 10.00th=[ 1909], 20.00th=[ 3097], | 30.00th=[ 5407], 40.00th=[ 11469], 50.00th=[ 16909], 60.00th=[ 22414], | 70.00th=[ 28967], 80.00th=[ 37487], 90.00th=[ 49546], 95.00th=[ 62653], | 99.00th=[ 93848], 99.50th=[117965], 99.90th=[283116], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 160, per=25.40%, avg=92.70, stdev=28.33, samples=134 iops : min= 7, max= 40, avg=22.69, stdev= 7.08, samples=134 lat (usec) : 50=0.39%, 100=2.80%, 250=1.27%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=5.34%, 4=7.36%, 10=9.96%, 20=28.42%, 50=36.33% lat (msec) : 100=7.16%, 250=0.42%, 500=0.07%, 750=0.03% cpu : usr=0.11%, sys=12.74%, ctx=7361, 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=146093: Sun Sep 6 17:17:52 2026 read: IOPS=21, BW=86.7KiB/s (88.8kB/s)(5940KiB/68487msec) clat (usec): min=30, max=162499, avg=21223.83, stdev=15809.95 lat (usec): min=30, max=162500, avg=21226.87, stdev=15809.53 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 93], 10.00th=[ 7308], 20.00th=[ 10945], | 30.00th=[ 12911], 40.00th=[ 15008], 50.00th=[ 17433], 60.00th=[ 20841], | 70.00th=[ 25035], 80.00th=[ 31065], 90.00th=[ 39060], 95.00th=[ 48497], | 99.00th=[ 69731], 99.50th=[ 82314], 99.90th=[154141], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 7, max= 176, per=24.77%, avg=86.45, stdev=29.76, samples=136 iops : min= 1, max= 44, avg=21.12, stdev= 7.48, samples=136 write: IOPS=23, BW=92.7KiB/s (94.9kB/s)(6348KiB/68487msec); 0 zone resets clat (usec): min=861, max=675384, avg=23144.32, stdev=28192.22 lat (usec): min=862, max=675385, avg=23145.84, stdev=28192.17 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1467], 10.00th=[ 2057], 20.00th=[ 3294], | 30.00th=[ 5407], 40.00th=[ 11863], 50.00th=[ 17695], 60.00th=[ 22938], | 70.00th=[ 29230], 80.00th=[ 38011], 90.00th=[ 51643], 95.00th=[ 65274], | 99.00th=[102237], 99.50th=[137364], 99.90th=[212861], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 7, max= 191, per=25.27%, avg=92.23, stdev=33.20, samples=136 iops : min= 1, max= 47, avg=22.56, stdev= 8.28, samples=136 lat (usec) : 50=0.55%, 100=2.05%, 250=1.14%, 500=0.13%, 750=0.16% lat (usec) : 1000=0.23% lat (msec) : 2=4.92%, 4=7.42%, 10=10.68%, 20=29.00%, 50=36.07% lat (msec) : 100=6.90%, 250=0.72%, 750=0.03% cpu : usr=0.11%, sys=12.70%, ctx=7353, 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=146094: Sun Sep 6 17:17:52 2026 read: IOPS=22, BW=88.1KiB/s (90.2kB/s)(6028KiB/68449msec) clat (usec): min=32, max=694252, avg=21905.12, stdev=23613.81 lat (usec): min=33, max=694253, avg=21906.24, stdev=23613.82 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 88], 10.00th=[ 6718], 20.00th=[ 10814], | 30.00th=[ 12911], 40.00th=[ 15139], 50.00th=[ 17957], 60.00th=[ 21103], | 70.00th=[ 24773], 80.00th=[ 31327], 90.00th=[ 41157], 95.00th=[ 52167], | 99.00th=[ 76022], 99.50th=[ 90702], 99.90th=[152044], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 16, max= 184, per=25.28%, avg=88.22, stdev=30.43, samples=135 iops : min= 4, max= 46, avg=21.56, stdev= 7.64, samples=135 write: IOPS=22, BW=91.5KiB/s (93.6kB/s)(6260KiB/68449msec); 0 zone resets clat (usec): min=732, max=215396, avg=22497.20, stdev=23004.11 lat (usec): min=733, max=215397, avg=22498.94, stdev=23004.30 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1385], 10.00th=[ 1909], 20.00th=[ 3032], | 30.00th=[ 5735], 40.00th=[ 11076], 50.00th=[ 16909], 60.00th=[ 22414], | 70.00th=[ 28443], 80.00th=[ 37487], 90.00th=[ 51119], 95.00th=[ 63701], | 99.00th=[101188], 99.50th=[128451], 99.90th=[177210], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 22, max= 175, per=24.93%, avg=90.99, stdev=29.35, samples=136 iops : min= 5, max= 43, avg=22.25, stdev= 7.36, samples=136 lat (usec) : 50=0.49%, 100=2.54%, 250=1.46%, 500=0.07%, 750=0.13% lat (usec) : 1000=0.49% lat (msec) : 2=5.11%, 4=6.80%, 10=10.48%, 20=28.48%, 50=35.55% lat (msec) : 100=7.68%, 250=0.68%, 750=0.03% cpu : usr=0.11%, sys=12.67%, ctx=7392, 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=146095: Sun Sep 6 17:17:52 2026 read: IOPS=22, BW=88.1KiB/s (90.2kB/s)(6052KiB/68699msec) clat (usec): min=34, max=124503, avg=21229.04, stdev=15461.47 lat (usec): min=34, max=124504, avg=21230.32, stdev=15461.46 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 80], 10.00th=[ 247], 20.00th=[ 10421], | 30.00th=[ 12780], 40.00th=[ 14877], 50.00th=[ 17695], 60.00th=[ 21365], | 70.00th=[ 26346], 80.00th=[ 32113], 90.00th=[ 40633], 95.00th=[ 50070], | 99.00th=[ 71828], 99.50th=[ 82314], 99.90th=[116917], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 31, max= 168, per=25.17%, avg=87.86, stdev=30.05, samples=135 iops : min= 7, max= 42, avg=21.47, stdev= 7.50, samples=135 write: IOPS=22, BW=90.8KiB/s (92.0kB/s)(6236KiB/68699msec); 0 zone resets clat (usec): min=752, max=680218, avg=23307.33, stdev=28727.31 lat (usec): min=753, max=680219, avg=23310.45, stdev=28728.36 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1500], 10.00th=[ 2057], 20.00th=[ 3326], | 30.00th=[ 5800], 40.00th=[ 12256], 50.00th=[ 17695], 60.00th=[ 22676], | 70.00th=[ 29230], 80.00th=[ 37487], 90.00th=[ 52167], 95.00th=[ 66323], | 99.00th=[103285], 99.50th=[124257], 99.90th=[283116], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 14, max= 175, per=24.66%, avg=90.02, stdev=31.40, samples=136 iops : min= 3, max= 43, avg=22.01, stdev= 7.86, samples=136 lat (usec) : 50=0.42%, 100=3.03%, 250=1.50%, 500=0.16%, 750=0.13% lat (usec) : 1000=0.20% lat (msec) : 2=4.72%, 4=7.45%, 10=10.12%, 20=27.41%, 50=36.88% lat (msec) : 100=7.32%, 250=0.59%, 500=0.03%, 750=0.03% cpu : usr=0.11%, sys=12.89%, ctx=7347, 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=350KiB/s (358kB/s), 86.7KiB/s-88.1KiB/s (88.8kB/s-90.2kB/s), io=23.4MiB (24.6MB), run=68237-68699msec WRITE: bw=366KiB/s (375kB/s), 90.8KiB/s-92.7KiB/s (92.0kB/s-94.9kB/s), io=24.6MiB (25.7MB), run=68237-68699msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146088: Sun Sep 6 17:19:04 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5992KiB/141081msec) clat (msec): min=4, max=681, avg=18.85, stdev=26.90 lat (msec): min=4, max=681, avg=18.85, stdev=26.90 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 24], 90.00th=[ 41], 95.00th=[ 55], | 99.00th=[ 96], 99.50th=[ 136], 99.90th=[ 317], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 128, per=25.35%, avg=43.10, stdev=25.61, samples=272 iops : min= 1, max= 32, avg=10.32, stdev= 6.46, samples=272 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6296KiB/141081msec); 0 zone resets clat (msec): min=23, max=313, avg=71.53, stdev=32.45 lat (msec): min=23, max=313, avg=71.53, stdev=32.45 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 36], 10.00th=[ 41], 20.00th=[ 47], | 30.00th=[ 52], 40.00th=[ 57], 50.00th=[ 64], 60.00th=[ 71], | 70.00th=[ 79], 80.00th=[ 93], 90.00th=[ 114], 95.00th=[ 136], | 99.00th=[ 184], 99.50th=[ 218], 99.90th=[ 243], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 88, per=24.80%, avg=44.15, stdev=17.95, samples=279 iops : min= 1, max= 22, avg=10.58, stdev= 4.53, samples=279 lat (msec) : 10=19.40%, 20=17.61%, 50=22.27%, 100=32.13%, 250=8.50% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=2.41%, ctx=5557, 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=146089: Sun Sep 6 17:19:04 2026 read: IOPS=10, BW=42.2KiB/s (43.3kB/s)(5940KiB/140622msec) clat (msec): min=4, max=678, avg=18.11, stdev=24.97 lat (msec): min=4, max=678, avg=18.11, stdev=24.97 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 24], 90.00th=[ 37], 95.00th=[ 51], | 99.00th=[ 95], 99.50th=[ 121], 99.90th=[ 249], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 144, per=25.60%, avg=43.52, stdev=27.06, samples=269 iops : min= 1, max= 36, avg=10.43, stdev= 6.80, samples=269 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6348KiB/140622msec); 0 zone resets clat (msec): min=25, max=310, avg=71.51, stdev=32.59 lat (msec): min=25, max=310, avg=71.51, stdev=32.59 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 36], 10.00th=[ 41], 20.00th=[ 47], | 30.00th=[ 52], 40.00th=[ 58], 50.00th=[ 64], 60.00th=[ 70], | 70.00th=[ 80], 80.00th=[ 93], 90.00th=[ 115], 95.00th=[ 133], | 99.00th=[ 188], 99.50th=[ 220], 99.90th=[ 275], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 8, max= 88, per=25.21%, avg=44.87, stdev=17.46, samples=279 iops : min= 2, max= 22, avg=10.76, stdev= 4.42, samples=279 lat (msec) : 10=18.78%, 20=18.20%, 50=22.36%, 100=32.10%, 250=8.43% lat (msec) : 500=0.10%, 750=0.03% cpu : usr=0.06%, sys=2.46%, ctx=5482, 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=146090: Sun Sep 6 17:19:04 2026 read: IOPS=10, BW=42.0KiB/s (43.0kB/s)(6028KiB/140319msec) clat (msec): min=4, max=229, avg=18.45, stdev=17.99 lat (msec): min=4, max=229, avg=18.45, stdev=17.99 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 27], 90.00th=[ 40], 95.00th=[ 52], | 99.00th=[ 85], 99.50th=[ 112], 99.90th=[ 178], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 7, max= 136, per=25.49%, avg=43.33, stdev=26.55, samples=274 iops : min= 1, max= 34, avg=10.38, stdev= 6.68, samples=274 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6260KiB/140319msec); 0 zone resets clat (msec): min=23, max=792, avg=71.74, stdev=36.29 lat (msec): min=23, max=792, avg=71.74, stdev=36.29 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 37], 10.00th=[ 42], 20.00th=[ 47], | 30.00th=[ 53], 40.00th=[ 57], 50.00th=[ 63], 60.00th=[ 70], | 70.00th=[ 79], 80.00th=[ 92], 90.00th=[ 117], 95.00th=[ 140], | 99.00th=[ 171], 99.50th=[ 194], 99.90th=[ 271], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 88, per=24.87%, avg=44.28, stdev=17.89, samples=278 iops : min= 1, max= 22, avg=10.62, stdev= 4.51, samples=278 lat (msec) : 10=18.59%, 20=17.38%, 50=23.93%, 100=31.61%, 250=8.43% lat (msec) : 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=2.45%, ctx=5441, 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=146092: Sun Sep 6 17:19:04 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(6052KiB/139586msec) clat (msec): min=4, max=161, avg=17.89, stdev=16.70 lat (msec): min=4, max=161, avg=17.89, stdev=16.70 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 25], 90.00th=[ 39], 95.00th=[ 54], | 99.00th=[ 87], 99.50th=[ 95], 99.90th=[ 130], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 7, max= 143, per=26.11%, avg=44.38, stdev=26.45, samples=269 iops : min= 1, max= 35, avg=10.64, stdev= 6.64, samples=269 write: IOPS=11, BW=44.7KiB/s (45.7kB/s)(6236KiB/139586msec); 0 zone resets clat (msec): min=26, max=750, avg=72.02, stdev=37.05 lat (msec): min=26, max=750, avg=72.02, stdev=37.05 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 37], 10.00th=[ 42], 20.00th=[ 46], | 30.00th=[ 52], 40.00th=[ 58], 50.00th=[ 64], 60.00th=[ 70], | 70.00th=[ 79], 80.00th=[ 91], 90.00th=[ 117], 95.00th=[ 138], | 99.00th=[ 184], 99.50th=[ 226], 99.90th=[ 313], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8, max= 80, per=24.93%, avg=44.38, stdev=17.60, samples=277 iops : min= 2, max= 20, avg=10.64, stdev= 4.43, samples=277 lat (msec) : 10=19.30%, 20=17.87%, 50=22.92%, 100=31.80%, 250=7.98% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=2.55%, ctx=5443, 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=170KiB/s (174kB/s), 42.2KiB/s-43.4KiB/s (43.3kB/s-44.4kB/s), io=23.4MiB (24.6MB), run=139586-141081msec WRITE: bw=178KiB/s (182kB/s), 44.6KiB/s-45.1KiB/s (45.7kB/s-46.2kB/s), io=24.6MiB (25.7MB), run=139586-141081msec 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=146134: Sun Sep 6 17:19:25 2026 read: IOPS=24, BW=394KiB/s (404kB/s)(5920KiB/15021msec) clat (usec): min=31, max=97307, avg=19776.76, stdev=16172.46 lat (usec): min=31, max=97309, avg=19777.83, stdev=16172.40 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 66], 20.00th=[ 121], | 30.00th=[11600], 40.00th=[15664], 50.00th=[19268], 60.00th=[22938], | 70.00th=[27132], 80.00th=[30540], 90.00th=[39060], 95.00th=[45351], | 99.00th=[74974], 99.50th=[89654], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 223, max= 604, per=25.03%, avg=389.45, stdev=82.39, samples=29 iops : min= 13, max= 37, avg=23.76, stdev= 5.26, samples=29 write: IOPS=26, BW=424KiB/s (434kB/s)(6368KiB/15021msec); 0 zone resets clat (usec): min=1017, max=256678, avg=19294.15, stdev=22238.49 lat (usec): min=1019, max=256680, avg=19297.60, stdev=22237.63 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 2008], 10.00th=[ 2704], 20.00th=[ 3949], | 30.00th=[ 5276], 40.00th=[ 7373], 50.00th=[ 11076], 60.00th=[ 16909], | 70.00th=[ 25035], 80.00th=[ 32637], 90.00th=[ 45351], 95.00th=[ 56886], | 99.00th=[ 85459], 99.50th=[122160], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 159, max= 638, per=25.93%, avg=424.55, stdev=98.59, samples=29 iops : min= 9, max= 39, avg=25.97, stdev= 6.11, samples=29 lat (usec) : 50=1.69%, 100=7.16%, 250=2.60%, 500=0.26%, 1000=0.39% lat (msec) : 2=2.47%, 4=8.07%, 10=14.58%, 20=21.22%, 50=35.94% lat (msec) : 100=5.34%, 250=0.13%, 500=0.13% cpu : usr=0.12%, sys=14.72%, ctx=1646, 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=146135: Sun Sep 6 17:19:25 2026 read: IOPS=23, BW=373KiB/s (382kB/s)(5744KiB/15391msec) clat (usec): min=28, max=105956, avg=20657.17, stdev=16013.41 lat (usec): min=29, max=105957, avg=20658.36, stdev=16013.18 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 95], 20.00th=[ 510], | 30.00th=[ 12780], 40.00th=[ 15926], 50.00th=[ 18744], 60.00th=[ 22938], | 70.00th=[ 28705], 80.00th=[ 33817], 90.00th=[ 40109], 95.00th=[ 46924], | 99.00th=[ 66847], 99.50th=[ 88605], 99.90th=[106431], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 61, max= 601, per=24.08%, avg=374.73, stdev=122.84, samples=30 iops : min= 3, max= 37, avg=22.83, stdev= 7.74, samples=30 write: IOPS=26, BW=425KiB/s (435kB/s)(6544KiB/15391msec); 0 zone resets clat (usec): min=1134, max=106478, avg=19420.57, stdev=20656.20 lat (usec): min=1136, max=106481, avg=19422.94, stdev=20655.89 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 2114], 10.00th=[ 2802], 20.00th=[ 3687], | 30.00th=[ 4817], 40.00th=[ 7111], 50.00th=[ 12387], 60.00th=[ 16581], | 70.00th=[ 23987], 80.00th=[ 34341], 90.00th=[ 43779], 95.00th=[ 60031], | 99.00th=[ 98042], 99.50th=[102237], 99.90th=[106431], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 223, max= 670, per=26.05%, avg=426.50, stdev=104.55, samples=30 iops : min= 13, max= 41, avg=26.10, stdev= 6.50, samples=30 lat (usec) : 50=0.52%, 100=4.82%, 250=3.52%, 500=0.39%, 750=0.39% lat (usec) : 1000=0.26% lat (msec) : 2=2.21%, 4=10.03%, 10=12.89%, 20=24.48%, 50=34.64% lat (msec) : 100=5.21%, 250=0.65% cpu : usr=0.17%, sys=14.68%, ctx=1676, 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=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=146136: Sun Sep 6 17:19:25 2026 read: IOPS=25, BW=413KiB/s (423kB/s)(6256KiB/15159msec) clat (usec): min=34, max=112837, avg=19104.29, stdev=15552.56 lat (usec): min=34, max=112839, avg=19108.40, stdev=15560.66 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 57], 10.00th=[ 70], 20.00th=[ 165], | 30.00th=[ 12911], 40.00th=[ 15664], 50.00th=[ 17957], 60.00th=[ 21103], | 70.00th=[ 24773], 80.00th=[ 30278], 90.00th=[ 37487], 95.00th=[ 44303], | 99.00th=[ 70779], 99.50th=[ 89654], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 191, max= 704, per=26.59%, avg=413.77, stdev=128.18, samples=30 iops : min= 11, max= 44, avg=25.30, stdev= 8.12, samples=30 write: IOPS=24, BW=398KiB/s (407kB/s)(6032KiB/15159msec); 0 zone resets clat (usec): min=1381, max=180473, avg=20324.55, stdev=21572.44 lat (usec): min=1382, max=180476, avg=20326.59, stdev=21572.91 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1958], 10.00th=[ 2507], 20.00th=[ 3851], | 30.00th=[ 5276], 40.00th=[ 8094], 50.00th=[ 14615], 60.00th=[ 19268], | 70.00th=[ 26346], 80.00th=[ 32375], 90.00th=[ 46400], 95.00th=[ 60031], | 99.00th=[ 98042], 99.50th=[141558], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 127, max= 734, per=24.04%, avg=393.50, stdev=123.12, samples=30 iops : min= 7, max= 45, avg=24.03, stdev= 7.71, samples=30 lat (usec) : 50=1.43%, 100=6.77%, 250=2.86%, 500=0.65%, 750=0.26% lat (msec) : 2=2.73%, 4=8.33%, 10=11.20%, 20=23.96%, 50=36.85% lat (msec) : 100=4.43%, 250=0.52% cpu : usr=0.13%, sys=14.51%, ctx=1632, 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=146137: Sun Sep 6 17:19:25 2026 read: IOPS=24, BW=400KiB/s (409kB/s)(6032KiB/15086msec) clat (usec): min=31, max=101796, avg=20176.23, stdev=17630.95 lat (usec): min=32, max=101797, avg=20177.33, stdev=17630.93 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 102], | 30.00th=[ 11731], 40.00th=[ 15795], 50.00th=[ 18744], 60.00th=[ 22414], | 70.00th=[ 26870], 80.00th=[ 32637], 90.00th=[ 40109], 95.00th=[ 49021], | 99.00th=[ 85459], 99.50th=[ 93848], 99.90th=[102237], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 189, max= 699, per=25.40%, avg=395.17, stdev=118.04, samples=29 iops : min= 11, max= 43, avg=24.14, stdev= 7.43, samples=29 write: IOPS=25, BW=415KiB/s (425kB/s)(6256KiB/15086msec); 0 zone resets clat (usec): min=1294, max=102749, avg=19031.51, stdev=18734.05 lat (usec): min=1297, max=102751, avg=19033.46, stdev=18733.96 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2073], 10.00th=[ 2606], 20.00th=[ 3556], | 30.00th=[ 5276], 40.00th=[ 7177], 50.00th=[ 13173], 60.00th=[ 18744], | 70.00th=[ 25560], 80.00th=[ 33162], 90.00th=[ 42206], 95.00th=[ 53740], | 99.00th=[ 85459], 99.50th=[101188], 99.90th=[102237], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 191, max= 768, per=25.22%, avg=412.90, stdev=112.40, samples=29 iops : min= 11, max= 48, avg=25.24, stdev= 7.18, samples=29 lat (usec) : 50=0.78%, 100=8.72%, 250=3.39%, 500=0.13% lat (msec) : 2=2.08%, 4=10.16%, 10=12.63%, 20=20.31%, 50=36.07% lat (msec) : 100=5.34%, 250=0.39% cpu : usr=0.11%, sys=14.33%, ctx=1686, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1556KiB/s (1594kB/s), 373KiB/s-413KiB/s (382kB/s-423kB/s), io=23.4MiB (24.5MB), run=15021-15391msec WRITE: bw=1637KiB/s (1677kB/s), 398KiB/s-425KiB/s (407kB/s-435kB/s), io=24.6MiB (25.8MB), run=15021-15391msec fio: pid=146132, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=146129: Sun Sep 6 17:19:45 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5920KiB/35702msec) clat (msec): min=5, max=256, avg=21.19, stdev=22.02 lat (msec): min=5, max=256, avg=21.19, stdev=22.02 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 43], 95.00th=[ 59], | 99.00th=[ 99], 99.50th=[ 146], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 416, per=26.01%, avg=162.80, stdev=91.63, samples=70 iops : min= 1, max= 26, avg= 9.60, stdev= 5.82, samples=70 write: IOPS=11, BW=178KiB/s (183kB/s)(6368KiB/35702msec); 0 zone resets clat (msec): min=25, max=292, avg=69.74, stdev=35.72 lat (msec): min=25, max=295, avg=69.75, stdev=35.77 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 33], 10.00th=[ 36], 20.00th=[ 43], | 30.00th=[ 49], 40.00th=[ 55], 50.00th=[ 59], 60.00th=[ 68], | 70.00th=[ 79], 80.00th=[ 91], 90.00th=[ 115], 95.00th=[ 146], | 99.00th=[ 197], 99.50th=[ 226], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 62, max= 352, per=27.02%, avg=179.67, stdev=77.55, samples=69 iops : min= 3, max= 22, avg=10.67, stdev= 4.99, samples=69 lat (msec) : 10=11.33%, 20=22.53%, 50=26.95%, 100=30.73%, 250=8.20% lat (msec) : 500=0.26% cpu : usr=0.08%, sys=3.01%, ctx=1525, 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=146130: Sun Sep 6 17:19:45 2026 read: IOPS=10, BW=160KiB/s (164kB/s)(5744KiB/35838msec) clat (msec): min=5, max=161, avg=21.81, stdev=20.57 lat (msec): min=5, max=161, avg=21.81, stdev=20.57 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 21], 80.00th=[ 27], 90.00th=[ 42], 95.00th=[ 69], | 99.00th=[ 106], 99.50th=[ 132], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 31, max= 480, per=26.44%, avg=165.49, stdev=99.91, samples=69 iops : min= 1, max= 30, avg= 9.78, stdev= 6.44, samples=69 write: IOPS=11, BW=183KiB/s (187kB/s)(6544KiB/35838msec); 0 zone resets clat (msec): min=21, max=297, avg=68.21, stdev=33.65 lat (msec): min=21, max=297, avg=68.21, stdev=33.65 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 32], 10.00th=[ 37], 20.00th=[ 41], | 30.00th=[ 46], 40.00th=[ 53], 50.00th=[ 60], 60.00th=[ 69], | 70.00th=[ 80], 80.00th=[ 91], 90.00th=[ 111], 95.00th=[ 136], | 99.00th=[ 178], 99.50th=[ 184], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 384, per=27.40%, avg=182.21, stdev=82.04, samples=71 iops : min= 1, max= 24, avg=10.83, stdev= 5.26, samples=71 lat (msec) : 10=9.51%, 20=22.92%, 50=30.21%, 100=29.56%, 250=7.68% lat (msec) : 500=0.13% cpu : usr=0.11%, sys=3.17%, ctx=1521, 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=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=146131: Sun Sep 6 17:19:45 2026 read: IOPS=11, BW=180KiB/s (185kB/s)(6256KiB/34707msec) clat (msec): min=4, max=101, avg=20.27, stdev=17.20 lat (msec): min=4, max=101, avg=20.27, stdev=17.20 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 43], 95.00th=[ 61], | 99.00th=[ 90], 99.50th=[ 102], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 31, max= 574, per=28.97%, avg=181.34, stdev=124.61, samples=68 iops : min= 1, max= 35, avg=10.75, stdev= 7.87, samples=68 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34707msec); 0 zone resets clat (msec): min=25, max=282, avg=70.77, stdev=34.83 lat (msec): min=25, max=282, avg=70.77, stdev=34.83 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 34], 10.00th=[ 37], 20.00th=[ 43], | 30.00th=[ 49], 40.00th=[ 56], 50.00th=[ 62], 60.00th=[ 68], | 70.00th=[ 79], 80.00th=[ 99], 90.00th=[ 121], 95.00th=[ 142], | 99.00th=[ 176], 99.50th=[ 205], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 63, max= 352, per=25.77%, avg=171.37, stdev=75.61, samples=68 iops : min= 3, max= 22, avg=10.13, stdev= 4.86, samples=68 lat (msec) : 10=11.46%, 20=25.26%, 50=25.78%, 100=28.26%, 250=9.11% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=3.13%, ctx=1562, 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=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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=146132: Sun Sep 6 17:19:45 2026 read: IOPS=9, BW=149KiB/s (153kB/s)(4544KiB/30456msec) clat (msec): min=5, max=250, avg=22.86, stdev=22.06 lat (msec): min=5, max=250, avg=22.86, stdev=22.06 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 33], 90.00th=[ 45], 95.00th=[ 61], | 99.00th=[ 101], 99.50th=[ 101], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 415, per=24.15%, avg=151.19, stdev=91.69, samples=59 iops : min= 1, max= 25, avg= 8.83, stdev= 5.84, samples=59 write: IOPS=10, BW=161KiB/s (165kB/s)(4912KiB/30456msec); 0 zone resets clat (msec): min=22, max=287, avg=77.84, stdev=36.92 lat (msec): min=22, max=287, avg=77.85, stdev=36.92 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 37], 10.00th=[ 43], 20.00th=[ 50], | 30.00th=[ 55], 40.00th=[ 61], 50.00th=[ 68], 60.00th=[ 79], | 70.00th=[ 88], 80.00th=[ 103], 90.00th=[ 130], 95.00th=[ 146], | 99.00th=[ 213], 99.50th=[ 241], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 380, per=24.15%, avg=160.62, stdev=74.09, samples=60 iops : min= 1, max= 23, avg= 9.42, stdev= 4.73, samples=60 lat (msec) : 10=9.29%, 20=21.45%, 50=24.32%, 100=33.11%, 250=11.32% lat (msec) : 500=0.34% cpu : usr=0.06%, sys=2.68%, ctx=1058, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=285,307,0,0 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=627KiB/s (642kB/s), 149KiB/s-180KiB/s (153kB/s-185kB/s), io=21.9MiB (23.0MB), run=30456-35838msec WRITE: bw=666KiB/s (682kB/s), 161KiB/s-183KiB/s (165kB/s-187kB/s), io=23.3MiB (24.4MB), run=30456-35838msec 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=146152: Sun Sep 6 17:19:54 2026 read: IOPS=2, BW=2446KiB/s (2505kB/s)(7168KiB/2930msec) clat (msec): min=96, max=252, avg=178.19, stdev=52.62 lat (msec): min=96, max=252, avg=178.19, stdev=52.62 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 159], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 239], 90.00th=[ 253], 95.00th=[ 253], | 99.00th=[ 253], 99.50th=[ 253], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 2031, max= 4096, per=50.58%, avg=2935.50, stdev=1056.93, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 write: IOPS=1, BW=1747KiB/s (1789kB/s)(5120KiB/2930msec); 0 zone resets clat (msec): min=220, max=395, avg=311.44, stdev=74.38 lat (msec): min=221, max=395, avg=311.57, stdev=74.40 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 2031, max= 4063, per=33.40%, avg=2714.00, stdev=1168.30, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=41.67% cpu : usr=0.00%, sys=36.74%, ctx=575, 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=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=146153: Sun Sep 6 17:19:54 2026 read: IOPS=0, BW=580KiB/s (594kB/s)(2048KiB/3528msec) clat (msec): min=174, max=210, avg=192.89, stdev=25.61 lat (msec): min=174, max=211, avg=192.89, stdev=25.61 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 211], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 211], 95.00th=[ 211], | 99.00th=[ 211], 99.50th=[ 211], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 1768, max= 2031, per=32.73%, avg=1899.50, stdev=185.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2902KiB/s (2972kB/s)(10.0MiB/3528msec); 0 zone resets clat (msec): min=100, max=1029, avg=310.56, stdev=276.96 lat (msec): min=100, max=1029, avg=310.67, stdev=276.94 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 122], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 180], 60.00th=[ 257], | 70.00th=[ 292], 80.00th=[ 368], 90.00th=[ 456], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 2031, max= 4096, per=43.73%, avg=3553.25, stdev=1015.27, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.26, samples=4 lat (msec) : 250=58.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=28.47%, ctx=256, 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=146154: Sun Sep 6 17:19:54 2026 read: IOPS=1, BW=1768KiB/s (1810kB/s)(6144KiB/3476msec) clat (usec): min=1377, max=242269, avg=151308.66, stdev=95245.65 lat (usec): min=1379, max=242270, avg=151310.03, stdev=95245.61 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1385], 10.00th=[ 1385], 20.00th=[ 94897], | 30.00th=[ 94897], 40.00th=[124257], 50.00th=[124257], 60.00th=[206570], | 70.00th=[238027], 80.00th=[238027], 90.00th=[242222], 95.00th=[242222], | 99.00th=[242222], 99.50th=[242222], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 4023, max= 4063, per=69.66%, avg=4043.00, stdev=28.28, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1768KiB/s (1810kB/s)(6144KiB/3476msec); 0 zone resets clat (msec): min=105, max=853, avg=401.13, stdev=271.12 lat (msec): min=105, max=853, avg=401.21, stdev=271.09 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 439], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1780, max= 2048, per=24.21%, avg=1967.50, stdev=125.91, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 2=8.33%, 100=8.33%, 250=50.00%, 500=25.00%, 1000=8.33% cpu : usr=0.03%, sys=28.29%, ctx=395, 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=146155: Sun Sep 6 17:19:54 2026 read: IOPS=1, BW=1578KiB/s (1616kB/s)(5120KiB/3244msec) clat (usec): min=648, max=272614, avg=136308.46, stdev=129525.92 lat (usec): min=650, max=272615, avg=136309.43, stdev=129525.80 clat percentiles (usec): | 1.00th=[ 652], 5.00th=[ 652], 10.00th=[ 652], 20.00th=[ 652], | 30.00th=[ 914], 40.00th=[ 914], 50.00th=[166724], 60.00th=[166724], | 70.00th=[240124], 80.00th=[240124], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 2031, max= 6144, per=70.43%, avg=4087.50, stdev=2908.33, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2210KiB/s (2263kB/s)(7168KiB/3244msec); 0 zone resets clat (msec): min=180, max=677, avg=353.10, stdev=189.57 lat (msec): min=180, max=677, avg=353.17, stdev=189.59 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 243], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 498], 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= 2031, max= 4063, per=34.98%, avg=2842.60, stdev=1095.92, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 0.84, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=8.33% cpu : usr=0.03%, sys=29.02%, ctx=375, 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=5805KiB/s (5944kB/s), 580KiB/s-2446KiB/s (594kB/s-2505kB/s), io=20.0MiB (20.0MB), run=2930-3528msec WRITE: bw=8127KiB/s (8322kB/s), 1747KiB/s-2902KiB/s (1789kB/s-2972kB/s), io=28.0MiB (29.4MB), run=2930-3528msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146147: Sun Sep 6 17:19:54 2026 read: IOPS=2, BW=2751KiB/s (2817kB/s)(7168KiB/2606msec) clat (msec): min=85, max=243, avg=132.64, stdev=54.72 lat (msec): min=85, max=243, avg=132.64, stdev=54.72 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 88], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 122], 60.00th=[ 128], | 70.00th=[ 128], 80.00th=[ 159], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 3900, max= 5314, per=88.17%, avg=4607.00, stdev=999.85, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1965KiB/s (2012kB/s)(5120KiB/2606msec); 0 zone resets clat (msec): min=141, max=435, avg=318.17, stdev=129.79 lat (msec): min=142, max=435, avg=318.27, stdev=129.80 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1771, max= 1973, per=26.05%, avg=1905.67, stdev=116.62, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (msec) : 100=16.67%, 250=58.33%, 500=25.00% cpu : usr=0.00%, sys=11.06%, ctx=117, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146148: Sun Sep 6 17:19:54 2026 read: IOPS=0, BW=523KiB/s (535kB/s)(2048KiB/3919msec) clat (msec): min=59, max=261, avg=160.15, stdev=142.97 lat (msec): min=59, max=261, avg=160.15, stdev=142.97 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 59], | 30.00th=[ 59], 40.00th=[ 59], 50.00th=[ 59], 60.00th=[ 262], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 262], 95.00th=[ 262], | 99.00th=[ 262], 99.50th=[ 262], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 1774, max= 2035, per=36.45%, avg=1904.50, stdev=184.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2613KiB/s (2676kB/s)(10.0MiB/3919msec); 0 zone resets clat (msec): min=91, max=1014, avg=357.44, stdev=349.29 lat (msec): min=91, max=1014, avg=357.53, stdev=349.30 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 94], | 30.00th=[ 99], 40.00th=[ 126], 50.00th=[ 136], 60.00th=[ 296], | 70.00th=[ 305], 80.00th=[ 481], 90.00th=[ 936], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1774, max= 5919, per=47.03%, avg=3440.50, stdev=1958.18, samples=4 iops : min= 1, max= 5, avg= 2.75, stdev= 2.06, samples=4 lat (msec) : 100=33.33%, 250=16.67%, 500=33.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.05%, sys=10.34%, 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=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=146149: Sun Sep 6 17:19:54 2026 read: IOPS=1, BW=1593KiB/s (1631kB/s)(6144KiB/3858msec) clat (msec): min=142, max=548, avg=284.26, stdev=142.06 lat (msec): min=142, max=548, avg=284.26, stdev=142.06 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 266], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 2048, max= 4071, per=64.21%, avg=3355.00, stdev=1133.62, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1593KiB/s (1631kB/s)(6144KiB/3858msec); 0 zone resets clat (msec): min=214, max=499, avg=336.98, stdev=101.88 lat (msec): min=215, max=499, avg=337.04, stdev=101.87 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 338], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1774, max= 2048, per=26.57%, avg=1943.60, stdev=101.78, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.03%, sys=7.60%, ctx=118, 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=146150: Sun Sep 6 17:19:54 2026 read: IOPS=1, BW=1589KiB/s (1627kB/s)(5120KiB/3222msec) clat (msec): min=132, max=470, avg=263.56, stdev=134.18 lat (msec): min=132, max=470, avg=263.56, stdev=134.18 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 292], 80.00th=[ 292], 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= 3946, max= 4071, per=76.72%, avg=4008.50, stdev=88.39, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2225KiB/s (2278kB/s)(7168KiB/3222msec); 0 zone resets clat (msec): min=134, max=413, avg=257.49, stdev=119.70 lat (msec): min=134, max=413, avg=257.57, stdev=119.72 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 288], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 380], 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= 1815, max= 4071, per=37.81%, avg=2766.00, stdev=1138.11, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (msec) : 250=41.67%, 500=58.33% cpu : usr=0.00%, sys=11.43%, ctx=114, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5226KiB/s (5351kB/s), 523KiB/s-2751KiB/s (535kB/s-2817kB/s), io=20.0MiB (20.0MB), run=2606-3919msec WRITE: bw=7316KiB/s (7492kB/s), 1593KiB/s-2613KiB/s (1631kB/s-2676kB/s), io=28.0MiB (29.4MB), run=2606-3919msec 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=146162: Sun Sep 6 17:20:05 2026 read: IOPS=0, BW=3488KiB/s (3572kB/s)(12.0MiB/3523msec) clat (msec): min=632, max=2222, avg=1165.97, stdev=915.04 lat (msec): min=632, max=2222, avg=1165.97, stdev=915.04 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=18.51%, ctx=1238, 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=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=146163: Sun Sep 6 17:20:05 2026 read: IOPS=0, BW=1126KiB/s (1153kB/s)(4096KiB/3639msec) clat (nsec): min=2259.9M, max=2259.9M, avg=2259944211.00, stdev= 0.00 lat (nsec): min=2259.9M, max=2259.9M, avg=2259946963.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2265], 5.00th=[ 2265], 10.00th=[ 2265], 20.00th=[ 2265], | 30.00th=[ 2265], 40.00th=[ 2265], 50.00th=[ 2265], 60.00th=[ 2265], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2251KiB/s (2305kB/s)(8192KiB/3639msec); 0 zone resets clat (msec): min=539, max=800, avg=670.01, stdev=184.48 lat (msec): min=539, max=800, avg=670.22, stdev=184.58 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 802], | 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=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) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=10.01%, ctx=486, 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=146164: Sun Sep 6 17:20:05 2026 write: IOPS=0, BW=2773KiB/s (2839kB/s)(12.0MiB/4432msec); 0 zone resets clat (msec): min=218, max=3526, avg=1467.14, stdev=1796.75 lat (msec): min=218, max=3526, avg=1467.47, stdev=1796.74 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 3540], 80.00th=[ 3540], 90.00th=[ 3540], 95.00th=[ 3540], | 99.00th=[ 3540], 99.50th=[ 3540], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=4.87%, ctx=62, 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=146165: Sun Sep 6 17:20:05 2026 write: IOPS=0, BW=3545KiB/s (3630kB/s)(12.0MiB/3466msec); 0 zone resets clat (msec): min=195, max=2215, avg=1147.84, stdev=1014.81 lat (msec): min=195, max=2215, avg=1148.07, stdev=1014.88 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 8062, max= 8126, per=100.00%, avg=8094.00, stdev=45.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.17%, ctx=47, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4502KiB/s (4610kB/s), 1126KiB/s-3488KiB/s (1153kB/s-3572kB/s), io=16.0MiB (16.8MB), run=3523-3639msec WRITE: bw=7394KiB/s (7571kB/s), 2251KiB/s-3545KiB/s (2305kB/s-3630kB/s), io=32.0MiB (33.6MB), run=3466-4432msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146166: Sun Sep 6 17:20:05 2026 read: IOPS=0, BW=2905KiB/s (2975kB/s)(12.0MiB/4230msec) clat (msec): min=217, max=3172, avg=1390.69, stdev=1568.29 lat (msec): min=217, max=3172, avg=1390.69, stdev=1568.29 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 3171], 80.00th=[ 3171], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 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%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.16%, ctx=57, 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=146167: Sun Sep 6 17:20:05 2026 read: IOPS=0, BW=1095KiB/s (1121kB/s)(4096KiB/3740msec) clat (nsec): min=2370.7M, max=2370.7M, avg=2370702461.00, stdev= 0.00 lat (nsec): min=2370.7M, max=2370.7M, avg=2370704479.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2366], 5.00th=[ 2366], 10.00th=[ 2366], 20.00th=[ 2366], | 30.00th=[ 2366], 40.00th=[ 2366], 50.00th=[ 2366], 60.00th=[ 2366], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2190KiB/s (2243kB/s)(8192KiB/3740msec); 0 zone resets clat (msec): min=665, max=679, avg=672.49, stdev=10.27 lat (msec): min=665, max=680, avg=672.84, stdev=10.38 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 684], | 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= 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) : 750=66.67%, >=2000=33.33% cpu : usr=0.03%, sys=4.52%, ctx=123, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146168: Sun Sep 6 17:20:05 2026 write: IOPS=0, BW=2869KiB/s (2938kB/s)(12.0MiB/4283msec); 0 zone resets clat (msec): min=434, max=3052, avg=1420.64, stdev=1423.52 lat (msec): min=435, max=3052, avg=1420.95, stdev=1423.56 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 3037], 80.00th=[ 3037], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 8015, max= 8192, per=100.00%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.05%, sys=5.44%, ctx=62, 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=146169: Sun Sep 6 17:20:05 2026 write: IOPS=0, BW=3310KiB/s (3390kB/s)(12.0MiB/3712msec); 0 zone resets clat (msec): min=514, max=2345, avg=1222.16, stdev=984.11 lat (msec): min=514, max=2346, avg=1222.58, stdev=984.01 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=7.28%, ctx=66, 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=3873KiB/s (3966kB/s), 1095KiB/s-2905KiB/s (1121kB/s-2975kB/s), io=16.0MiB (16.8MB), run=3740-4230msec WRITE: bw=7651KiB/s (7834kB/s), 2190KiB/s-3310KiB/s (2243kB/s-3390kB/s), io=32.0MiB (33.6MB), run=3712-4283msec