== sanity test 398b: DIO and buffer IO race ============== 23:55:02 (1787370902) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.57534 s, 6.6 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=144525: Fri Aug 21 23:57:48 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(5992KiB/144198msec) clat (usec): min=33, max=787629, avg=48378.78, stdev=39857.99 lat (usec): min=33, max=787634, avg=48380.89, stdev=39857.87 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 474], 20.00th=[ 21890], | 30.00th=[ 28181], 40.00th=[ 33817], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 60556], 80.00th=[ 73925], 90.00th=[ 92799], 95.00th=[109577], | 99.00th=[160433], 99.50th=[206570], 99.90th=[287310], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 103, per=25.23%, avg=41.63, stdev=18.41, samples=280 iops : min= 1, max= 25, avg= 9.74, stdev= 4.63, samples=280 write: IOPS=10, BW=43.7KiB/s (44.7kB/s)(6296KiB/144198msec); 0 zone resets clat (usec): min=950, max=543681, avg=45243.35, stdev=48452.24 lat (usec): min=951, max=543682, avg=45254.74, stdev=48458.00 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1319], 10.00th=[ 1582], 20.00th=[ 4555], | 30.00th=[ 10028], 40.00th=[ 22676], 50.00th=[ 34341], 60.00th=[ 45351], | 70.00th=[ 57410], 80.00th=[ 74974], 90.00th=[105382], 95.00th=[133694], | 99.00th=[191890], 99.50th=[225444], 99.90th=[488637], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 118, per=25.20%, avg=43.59, stdev=19.25, samples=281 iops : min= 1, max= 29, avg=10.23, stdev= 4.85, samples=281 lat (usec) : 50=0.36%, 100=3.97%, 250=0.39%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.99%, 4=3.42%, 10=6.18%, 20=7.23%, 50=34.24% lat (msec) : 100=28.39%, 250=9.38%, 500=0.13%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.76%, ctx=6562, majf=0, minf=19 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=144527: Fri Aug 21 23:57:48 2026 read: IOPS=10, BW=40.9KiB/s (41.9kB/s)(5940KiB/145271msec) clat (usec): min=34, max=489130, avg=48675.34, stdev=36667.76 lat (usec): min=35, max=489134, avg=48680.67, stdev=36666.47 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 75], 10.00th=[ 13829], 20.00th=[ 23987], | 30.00th=[ 29492], 40.00th=[ 34866], 50.00th=[ 42206], 60.00th=[ 50070], | 70.00th=[ 58983], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[108528], | 99.00th=[162530], 99.50th=[189793], 99.90th=[463471], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 7, max= 119, per=24.67%, avg=40.70, stdev=17.45, samples=283 iops : min= 1, max= 29, avg= 9.51, stdev= 4.39, samples=283 write: IOPS=10, BW=43.7KiB/s (44.7kB/s)(6348KiB/145271msec); 0 zone resets clat (usec): min=1073, max=786500, avg=45676.37, stdev=50393.29 lat (usec): min=1075, max=786502, avg=45685.36, stdev=50392.64 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1369], 10.00th=[ 1860], 20.00th=[ 4752], | 30.00th=[ 9634], 40.00th=[ 22152], 50.00th=[ 33817], 60.00th=[ 45876], | 70.00th=[ 60556], 80.00th=[ 76022], 90.00th=[105382], 95.00th=[130548], | 99.00th=[204473], 99.50th=[238027], 99.90th=[404751], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 102, per=25.39%, avg=43.93, stdev=19.30, samples=280 iops : min= 1, max= 25, avg=10.32, stdev= 4.87, samples=280 lat (usec) : 50=0.23%, 100=3.42%, 250=0.49%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.44%, 4=3.81%, 10=6.61%, 20=7.06%, 50=34.15% lat (msec) : 100=29.36%, 250=8.98%, 500=0.26%, 1000=0.03% cpu : usr=0.08%, sys=4.57%, ctx=6559, majf=0, minf=19 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=144528: Fri Aug 21 23:57:48 2026 read: IOPS=10, BW=41.7KiB/s (42.7kB/s)(6028KiB/144690msec) clat (usec): min=29, max=588599, avg=46847.39, stdev=36003.89 lat (usec): min=29, max=588600, avg=46852.43, stdev=36002.41 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 1270], 20.00th=[ 21890], | 30.00th=[ 27657], 40.00th=[ 33162], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[145753], 99.50th=[173016], 99.90th=[295699], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 95, per=25.48%, avg=42.04, stdev=18.83, samples=279 iops : min= 1, max= 23, avg= 9.84, stdev= 4.73, samples=279 write: IOPS=10, BW=43.3KiB/s (44.3kB/s)(6260KiB/144690msec); 0 zone resets clat (usec): min=857, max=814763, avg=47061.34, stdev=53617.36 lat (usec): min=859, max=814765, avg=47065.41, stdev=53617.44 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 1729], 20.00th=[ 5145], | 30.00th=[ 9765], 40.00th=[ 21365], 50.00th=[ 34341], 60.00th=[ 46924], | 70.00th=[ 61604], 80.00th=[ 79168], 90.00th=[109577], 95.00th=[133694], | 99.00th=[196084], 99.50th=[246416], 99.90th=[650118], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 118, per=24.74%, avg=42.81, stdev=18.04, samples=284 iops : min= 1, max= 29, avg=10.05, stdev= 4.56, samples=284 lat (usec) : 50=0.42%, 100=3.97%, 250=0.29%, 750=0.07%, 1000=0.20% lat (msec) : 2=5.66%, 4=3.26%, 10=6.74%, 20=7.68%, 50=33.79% lat (msec) : 100=27.83%, 250=9.77%, 500=0.20%, 750=0.10%, 1000=0.03% cpu : usr=0.10%, sys=4.51%, ctx=6469, majf=0, minf=20 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=144529: Fri Aug 21 23:57:48 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(6052KiB/142553msec) clat (usec): min=24, max=402863, avg=46537.37, stdev=34447.79 lat (usec): min=24, max=402866, avg=46543.08, stdev=34446.26 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 523], 20.00th=[ 22152], | 30.00th=[ 28443], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 46924], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 89654], 95.00th=[104334], | 99.00th=[152044], 99.50th=[189793], 99.90th=[283116], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 7, max= 94, per=25.77%, avg=42.53, stdev=18.57, samples=277 iops : min= 1, max= 23, avg= 9.96, stdev= 4.68, samples=277 write: IOPS=10, BW=43.7KiB/s (44.8kB/s)(6236KiB/142553msec); 0 zone resets clat (usec): min=696, max=766753, avg=45922.43, stdev=51563.68 lat (usec): min=696, max=766755, avg=45926.23, stdev=51563.56 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1352], 10.00th=[ 1680], 20.00th=[ 4948], | 30.00th=[ 10028], 40.00th=[ 22152], 50.00th=[ 34341], 60.00th=[ 46400], | 70.00th=[ 60556], 80.00th=[ 79168], 90.00th=[106431], 95.00th=[125305], | 99.00th=[196084], 99.50th=[254804], 99.90th=[616563], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 148, per=25.16%, avg=43.53, stdev=20.06, samples=279 iops : min= 1, max= 37, avg=10.22, stdev= 5.06, samples=279 lat (usec) : 50=0.36%, 100=4.07%, 250=0.36%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.70%, 4=3.06%, 10=6.45%, 20=7.39%, 50=35.16% lat (msec) : 100=28.19%, 250=8.53%, 500=0.29%, 750=0.03%, 1000=0.03% cpu : usr=0.09%, sys=4.54%, ctx=6547, majf=0, minf=19 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=165KiB/s (169kB/s), 40.9KiB/s-42.5KiB/s (41.9kB/s-43.5kB/s), io=23.4MiB (24.6MB), run=142553-145271msec WRITE: bw=173KiB/s (177kB/s), 43.3KiB/s-43.7KiB/s (44.3kB/s-44.8kB/s), io=24.6MiB (25.7MB), run=142553-145271msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144530: Sat Aug 22 00:00:11 2026 read: IOPS=5, BW=20.7KiB/s (21.2kB/s)(5992KiB/288826msec) clat (msec): min=5, max=796, avg=39.17, stdev=46.18 lat (msec): min=5, max=796, avg=39.18, stdev=46.18 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 86], 95.00th=[ 124], | 99.00th=[ 211], 99.50th=[ 259], 99.90th=[ 456], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 95, per=28.34%, avg=23.52, stdev=16.33, samples=491 iops : min= 1, max= 23, avg= 5.23, stdev= 4.13, samples=491 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6296KiB/288826msec); 0 zone resets clat (msec): min=32, max=697, avg=145.98, stdev=74.74 lat (msec): min=32, max=697, avg=146.00, stdev=74.75 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 72], 20.00th=[ 87], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 194], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 397], 99.50th=[ 443], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 63, per=25.12%, avg=21.61, stdev=10.56, samples=559 iops : min= 1, max= 15, avg= 4.75, stdev= 2.72, samples=559 lat (msec) : 10=2.64%, 20=15.82%, 50=20.80%, 100=20.77%, 250=35.45% lat (msec) : 500=4.33%, 750=0.16%, 1000=0.03% cpu : usr=0.05%, sys=1.09%, ctx=5197, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144531: Sat Aug 22 00:00:11 2026 read: IOPS=5, BW=20.5KiB/s (21.0kB/s)(5940KiB/289200msec) clat (msec): min=6, max=682, avg=39.17, stdev=43.96 lat (msec): min=6, max=682, avg=39.17, stdev=43.96 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 53], 90.00th=[ 86], 95.00th=[ 120], | 99.00th=[ 211], 99.50th=[ 255], 99.90th=[ 443], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 93, per=28.92%, avg=24.00, stdev=16.59, samples=476 iops : min= 1, max= 23, avg= 5.35, stdev= 4.24, samples=476 write: IOPS=5, BW=21.0KiB/s (22.5kB/s)(6348KiB/289200msec); 0 zone resets clat (msec): min=31, max=656, avg=145.28, stdev=71.50 lat (msec): min=31, max=656, avg=145.28, stdev=71.50 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 116], 50.00th=[ 130], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 194], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 651], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7, max= 63, per=25.32%, avg=21.78, stdev=10.32, samples=557 iops : min= 1, max= 15, avg= 4.79, stdev= 2.65, samples=557 lat (msec) : 10=2.28%, 20=16.44%, 50=20.15%, 100=20.64%, 250=35.68% lat (msec) : 500=4.65%, 750=0.16% cpu : usr=0.05%, sys=1.07%, ctx=5143, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144532: Sat Aug 22 00:00:11 2026 read: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6028KiB/288592msec) clat (msec): min=5, max=463, avg=38.78, stdev=39.81 lat (msec): min=5, max=463, avg=38.78, stdev=39.81 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 55], 90.00th=[ 88], 95.00th=[ 121], | 99.00th=[ 188], 99.50th=[ 222], 99.90th=[ 447], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 95, per=28.22%, avg=23.42, stdev=16.70, samples=495 iops : min= 1, max= 23, avg= 5.20, stdev= 4.20, samples=495 write: IOPS=5, BW=21.7KiB/s (22.2kB/s)(6260KiB/288592msec); 0 zone resets clat (msec): min=31, max=765, avg=146.81, stdev=75.13 lat (msec): min=31, max=765, avg=146.81, stdev=75.13 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 64], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 114], 50.00th=[ 130], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 247], 95.00th=[ 284], | 99.00th=[ 384], 99.50th=[ 460], 99.90th=[ 709], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 71, per=24.99%, avg=21.49, stdev=10.57, samples=558 iops : min= 1, max= 17, avg= 4.72, stdev= 2.72, samples=558 lat (msec) : 10=3.26%, 20=15.27%, 50=20.80%, 100=20.28%, 250=35.35% lat (msec) : 500=4.85%, 750=0.16%, 1000=0.03% cpu : usr=0.05%, sys=1.05%, ctx=4946, 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=144533: Sat Aug 22 00:00:11 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6052KiB/285789msec) clat (msec): min=6, max=402, avg=37.33, stdev=39.31 lat (msec): min=6, max=402, avg=37.33, stdev=39.31 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 84], 95.00th=[ 108], | 99.00th=[ 205], 99.50th=[ 271], 99.90th=[ 338], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 7, max= 119, per=28.74%, avg=23.85, stdev=16.64, samples=489 iops : min= 1, max= 29, avg= 5.31, stdev= 4.20, samples=489 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6236KiB/285789msec); 0 zone resets clat (msec): min=31, max=725, avg=146.80, stdev=69.96 lat (msec): min=31, max=725, avg=146.81, stdev=69.96 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 105], 40.00th=[ 117], 50.00th=[ 133], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 197], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 372], 99.50th=[ 414], 99.90th=[ 642], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 56, per=25.07%, avg=21.56, stdev= 9.91, samples=555 iops : min= 1, max= 14, avg= 4.73, stdev= 2.55, samples=555 lat (msec) : 10=2.77%, 20=16.08%, 50=21.00%, 100=19.60%, 250=36.17% lat (msec) : 500=4.33%, 750=0.07% cpu : usr=0.04%, sys=1.07%, ctx=5096, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=83.0KiB/s (85.0kB/s), 20.5KiB/s-21.2KiB/s (21.0kB/s-21.7kB/s), io=23.4MiB (24.6MB), run=285789-289200msec WRITE: bw=86.9KiB/s (89.0kB/s), 21.7KiB/s-21.0KiB/s (22.2kB/s-22.5kB/s), io=24.6MiB (25.7MB), run=285789-289200msec 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=144593: Sat Aug 22 00:00:55 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(5920KiB/33106msec) clat (usec): min=43, max=275358, avg=46193.78, stdev=40220.86 lat (usec): min=43, max=275360, avg=46243.51, stdev=40176.20 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 69], 10.00th=[ 76], 20.00th=[ 93], | 30.00th=[ 22938], 40.00th=[ 33817], 50.00th=[ 43254], 60.00th=[ 52691], | 70.00th=[ 63177], 80.00th=[ 74974], 90.00th=[ 94897], 95.00th=[111674], | 99.00th=[160433], 99.50th=[210764], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 62, max= 413, per=24.98%, avg=178.09, stdev=77.92, samples=65 iops : min= 3, max= 25, avg=10.37, stdev= 4.94, samples=65 write: IOPS=12, BW=192KiB/s (197kB/s)(6368KiB/33106msec); 0 zone resets clat (usec): min=1530, max=346928, avg=39642.07, stdev=41959.53 lat (usec): min=1533, max=346929, avg=39648.76, stdev=41956.19 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2180], 10.00th=[ 3228], 20.00th=[ 6456], | 30.00th=[ 10945], 40.00th=[ 15139], 50.00th=[ 23725], 60.00th=[ 35914], | 70.00th=[ 52167], 80.00th=[ 68682], 90.00th=[ 98042], 95.00th=[119014], | 99.00th=[158335], 99.50th=[231736], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 62, max= 469, per=25.99%, avg=194.91, stdev=81.66, samples=64 iops : min= 3, max= 29, avg=11.42, stdev= 5.16, samples=64 lat (usec) : 50=0.78%, 100=9.38%, 250=1.04%, 500=0.13%, 750=0.13% lat (msec) : 2=2.34%, 4=4.82%, 10=8.59%, 20=9.24%, 50=26.69% lat (msec) : 100=28.39%, 250=8.20%, 500=0.26% cpu : usr=0.09%, sys=4.88%, ctx=1425, 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=144594: Sat Aug 22 00:00:55 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5744KiB/33247msec) clat (usec): min=40, max=294656, avg=48432.08, stdev=41513.54 lat (usec): min=41, max=294657, avg=48462.16, stdev=41530.72 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 16712], | 30.00th=[ 29492], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 93848], 95.00th=[113771], | 99.00th=[252707], 99.50th=[291505], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 413, per=24.28%, avg=173.12, stdev=79.44, samples=65 iops : min= 1, max= 25, avg=10.06, stdev= 5.06, samples=65 write: IOPS=12, BW=197KiB/s (202kB/s)(6544KiB/33247msec); 0 zone resets clat (usec): min=1409, max=297287, avg=38575.29, stdev=43047.45 lat (usec): min=1411, max=297289, avg=38594.91, stdev=43083.06 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1942], 10.00th=[ 2638], 20.00th=[ 5669], | 30.00th=[ 8455], 40.00th=[ 14091], 50.00th=[ 21627], 60.00th=[ 36439], | 70.00th=[ 50594], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[187696], 99.50th=[278922], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 32, max= 480, per=26.52%, avg=198.89, stdev=91.57, samples=64 iops : min= 2, max= 30, avg=11.69, stdev= 5.82, samples=64 lat (usec) : 50=1.04%, 100=6.51%, 250=0.91%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.39%, 4=4.30%, 10=10.42%, 20=8.20%, 50=29.82% lat (msec) : 100=27.60%, 250=6.64%, 500=0.91% cpu : usr=0.07%, sys=5.15%, ctx=1502, 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=144596: Sat Aug 22 00:00:55 2026 read: IOPS=11, BW=186KiB/s (191kB/s)(6256KiB/33571msec) clat (usec): min=36, max=440153, avg=45499.02, stdev=40983.95 lat (usec): min=36, max=440154, avg=45508.04, stdev=40981.09 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 7832], | 30.00th=[ 26346], 40.00th=[ 32900], 50.00th=[ 40109], 60.00th=[ 47973], | 70.00th=[ 57410], 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[147850], 99.50th=[248513], 99.90th=[438305], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 31, max= 500, per=26.19%, avg=186.74, stdev=90.81, samples=65 iops : min= 1, max= 31, avg=10.92, stdev= 5.75, samples=65 write: IOPS=11, BW=180KiB/s (184kB/s)(6032KiB/33571msec); 0 zone resets clat (usec): min=1507, max=380796, avg=41224.88, stdev=51240.87 lat (usec): min=1510, max=380798, avg=41227.49, stdev=51240.84 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2073], 10.00th=[ 2835], 20.00th=[ 5145], | 30.00th=[ 8225], 40.00th=[ 12780], 50.00th=[ 23987], 60.00th=[ 34866], | 70.00th=[ 52167], 80.00th=[ 68682], 90.00th=[103285], 95.00th=[129500], | 99.00th=[252707], 99.50th=[341836], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 31, max= 438, per=23.90%, avg=179.22, stdev=84.34, samples=64 iops : min= 1, max= 27, avg=10.45, stdev= 5.40, samples=64 lat (usec) : 50=0.91%, 100=7.55%, 250=1.17%, 750=0.13% lat (msec) : 2=2.08%, 4=5.86%, 10=9.77%, 20=7.29%, 50=30.60% lat (msec) : 100=25.65%, 250=8.33%, 500=0.65% cpu : usr=0.07%, sys=4.56%, ctx=1457, 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=144597: Sat Aug 22 00:00:55 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(6032KiB/33588msec) clat (usec): min=35, max=277439, avg=49554.60, stdev=45556.58 lat (usec): min=35, max=277441, avg=49567.42, stdev=45555.87 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 69], 10.00th=[ 78], 20.00th=[ 147], | 30.00th=[ 25560], 40.00th=[ 34341], 50.00th=[ 41681], 60.00th=[ 54264], | 70.00th=[ 63701], 80.00th=[ 78119], 90.00th=[102237], 95.00th=[137364], | 99.00th=[206570], 99.50th=[274727], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 32, max= 407, per=25.08%, avg=178.82, stdev=77.04, samples=66 iops : min= 2, max= 25, avg=10.44, stdev= 4.92, samples=66 write: IOPS=11, BW=186KiB/s (191kB/s)(6256KiB/33588msec); 0 zone resets clat (usec): min=1472, max=361131, avg=37495.38, stdev=41635.97 lat (usec): min=1476, max=361133, avg=37501.53, stdev=41634.65 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1926], 10.00th=[ 2900], 20.00th=[ 5932], | 30.00th=[ 9241], 40.00th=[ 13960], 50.00th=[ 21103], 60.00th=[ 34866], | 70.00th=[ 45876], 80.00th=[ 65799], 90.00th=[ 94897], 95.00th=[121111], | 99.00th=[152044], 99.50th=[214959], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 31, max= 413, per=25.17%, avg=188.77, stdev=88.01, samples=65 iops : min= 1, max= 25, avg=11.06, stdev= 5.57, samples=65 lat (usec) : 50=0.91%, 100=7.81%, 250=1.69%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=3.52%, 4=3.52%, 10=10.16%, 20=9.24%, 50=27.60% lat (msec) : 100=24.87%, 250=9.51%, 500=0.52% cpu : usr=0.09%, sys=4.90%, ctx=1468, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=713KiB/s (730kB/s), 173KiB/s-186KiB/s (177kB/s-191kB/s), io=23.4MiB (24.5MB), run=33106-33588msec WRITE: bw=750KiB/s (768kB/s), 180KiB/s-197KiB/s (184kB/s-202kB/s), io=24.6MiB (25.8MB), run=33106-33588msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144599: Sat Aug 22 00:01:45 2026 read: IOPS=4, BW=71.7KiB/s (73.4kB/s)(5920KiB/82556msec) clat (msec): min=9, max=402, avg=54.17, stdev=45.80 lat (msec): min=9, max=402, avg=54.17, stdev=45.80 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 25], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 56], 80.00th=[ 70], 90.00th=[ 95], 95.00th=[ 132], | 99.00th=[ 255], 99.50th=[ 288], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 30, max= 286, per=28.17%, avg=81.71, stdev=49.70, samples=140 iops : min= 1, max= 17, avg= 4.28, stdev= 3.17, samples=140 write: IOPS=4, BW=77.1KiB/s (78.0kB/s)(6368KiB/82556msec); 0 zone resets clat (msec): min=41, max=617, avg=156.79, stdev=72.93 lat (msec): min=41, max=617, avg=156.80, stdev=72.93 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 77], 10.00th=[ 87], 20.00th=[ 104], | 30.00th=[ 114], 40.00th=[ 128], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 171], 80.00th=[ 207], 90.00th=[ 251], 95.00th=[ 288], | 99.00th=[ 456], 99.50th=[ 481], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 30, max= 159, per=25.66%, avg=78.26, stdev=32.38, samples=158 iops : min= 1, max= 9, avg= 4.07, stdev= 2.09, samples=158 lat (msec) : 10=0.39%, 20=5.73%, 50=23.05%, 100=23.44%, 250=41.80% lat (msec) : 500=5.47%, 750=0.13% cpu : usr=0.06%, sys=1.26%, ctx=1376, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144600: Sat Aug 22 00:01:45 2026 read: IOPS=4, BW=69.9KiB/s (71.6kB/s)(5744KiB/82177msec) clat (msec): min=9, max=334, avg=53.57, stdev=43.96 lat (msec): min=9, max=334, avg=53.57, stdev=43.96 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 50], | 70.00th=[ 58], 80.00th=[ 74], 90.00th=[ 100], 95.00th=[ 131], | 99.00th=[ 245], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 23, max= 286, per=28.87%, avg=83.73, stdev=54.04, samples=135 iops : min= 1, max= 17, avg= 4.41, stdev= 3.39, samples=135 write: IOPS=4, BW=79.6KiB/s (81.5kB/s)(6544KiB/82177msec); 0 zone resets clat (msec): min=46, max=607, avg=153.67, stdev=73.93 lat (msec): min=46, max=607, avg=153.68, stdev=73.93 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 78], 10.00th=[ 85], 20.00th=[ 99], | 30.00th=[ 109], 40.00th=[ 123], 50.00th=[ 136], 60.00th=[ 153], | 70.00th=[ 171], 80.00th=[ 194], 90.00th=[ 241], 95.00th=[ 292], | 99.00th=[ 435], 99.50th=[ 485], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 23, max= 160, per=26.62%, avg=81.18, stdev=34.90, samples=158 iops : min= 1, max= 10, avg= 4.26, stdev= 2.25, samples=158 lat (msec) : 10=0.26%, 20=5.73%, 50=22.92%, 100=24.48%, 250=41.41% lat (msec) : 500=5.08%, 750=0.13% cpu : usr=0.04%, sys=1.26%, ctx=1388, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144601: Sat Aug 22 00:01:45 2026 read: IOPS=4, BW=77.8KiB/s (79.7kB/s)(6256KiB/80384msec) clat (msec): min=8, max=322, avg=51.56, stdev=43.81 lat (msec): min=8, max=322, avg=51.56, stdev=43.81 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 47], | 70.00th=[ 58], 80.00th=[ 70], 90.00th=[ 88], 95.00th=[ 131], | 99.00th=[ 268], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 286, per=29.47%, avg=85.46, stdev=58.01, samples=144 iops : min= 1, max= 17, avg= 4.52, stdev= 3.67, samples=144 write: IOPS=4, BW=75.0KiB/s (76.8kB/s)(6032KiB/80384msec); 0 zone resets clat (msec): min=45, max=488, avg=159.56, stdev=71.57 lat (msec): min=45, max=488, avg=159.56, stdev=71.57 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 77], 10.00th=[ 86], 20.00th=[ 102], | 30.00th=[ 115], 40.00th=[ 129], 50.00th=[ 146], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 205], 90.00th=[ 257], 95.00th=[ 292], | 99.00th=[ 426], 99.50th=[ 456], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 159, per=24.64%, avg=75.14, stdev=30.99, samples=156 iops : min= 1, max= 9, avg= 3.87, stdev= 2.02, samples=156 lat (msec) : 10=0.26%, 20=7.16%, 50=25.39%, 100=23.70%, 250=37.37% lat (msec) : 500=6.12% cpu : usr=0.05%, sys=1.19%, ctx=1378, 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=144602: Sat Aug 22 00:01:45 2026 read: IOPS=4, BW=73.3KiB/s (75.0kB/s)(6032KiB/82320msec) clat (msec): min=6, max=312, avg=52.04, stdev=46.41 lat (msec): min=6, max=312, avg=52.04, stdev=46.41 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 54], 80.00th=[ 70], 90.00th=[ 110], 95.00th=[ 153], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 255, per=30.03%, avg=87.10, stdev=51.69, samples=135 iops : min= 1, max= 15, avg= 4.63, stdev= 3.23, samples=135 write: IOPS=4, BW=75.0KiB/s (77.8kB/s)(6256KiB/82320msec); 0 zone resets clat (msec): min=51, max=542, avg=160.09, stdev=80.92 lat (msec): min=51, max=542, avg=160.10, stdev=80.92 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 74], 10.00th=[ 85], 20.00th=[ 101], | 30.00th=[ 113], 40.00th=[ 129], 50.00th=[ 138], 60.00th=[ 155], | 70.00th=[ 174], 80.00th=[ 205], 90.00th=[ 262], 95.00th=[ 330], | 99.00th=[ 472], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 23, max= 159, per=25.22%, avg=76.92, stdev=36.15, samples=159 iops : min= 1, max= 9, avg= 3.99, stdev= 2.32, samples=159 lat (msec) : 10=0.52%, 20=7.55%, 50=24.48%, 100=20.31%, 250=40.62% lat (msec) : 500=6.12%, 750=0.39% cpu : usr=0.03%, sys=1.34%, ctx=1377, 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=290KiB/s (297kB/s), 69.9KiB/s-77.8KiB/s (71.6kB/s-79.7kB/s), io=23.4MiB (24.5MB), run=80384-82556msec WRITE: bw=305KiB/s (313kB/s), 75.0KiB/s-79.6KiB/s (76.8kB/s-81.5kB/s), io=24.6MiB (25.8MB), run=80384-82556msec 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=144637: Sat Aug 22 00:02:03 2026 read: IOPS=2, BW=2404KiB/s (2461kB/s)(7168KiB/2982msec) clat (usec): min=529, max=365421, avg=220903.62, stdev=110560.45 lat (usec): min=531, max=365423, avg=220905.38, stdev=110560.26 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[206570], | 30.00th=[221250], 40.00th=[221250], 50.00th=[231736], 60.00th=[246416], | 70.00th=[246416], 80.00th=[274727], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 1939, max= 3185, per=60.24%, avg=2293.50, stdev=595.73, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1717KiB/s (1758kB/s)(5120KiB/2982msec); 0 zone resets clat (msec): min=123, max=356, avg=273.47, stdev=92.95 lat (msec): min=124, max=356, avg=273.80, stdev=92.94 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 1939, max= 4096, per=50.37%, avg=2684.67, stdev=1222.90, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.03%, sys=13.92%, ctx=314, 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=144638: Sat Aug 22 00:02:03 2026 read: IOPS=0, BW=419KiB/s (429kB/s)(2048KiB/4886msec) clat (msec): min=196, max=215, avg=205.94, stdev=13.50 lat (msec): min=196, max=215, avg=205.94, stdev=13.50 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 1512, max= 2039, per=46.64%, avg=1775.50, stdev=372.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2096KiB/s (2146kB/s)(10.0MiB/4886msec); 0 zone resets clat (msec): min=130, max=920, avg=444.58, stdev=252.00 lat (msec): min=130, max=920, avg=444.68, stdev=252.00 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 153], | 30.00th=[ 236], 40.00th=[ 275], 50.00th=[ 451], 60.00th=[ 489], | 70.00th=[ 514], 80.00th=[ 575], 90.00th=[ 701], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1924, max= 4063, per=48.68%, avg=2594.71, stdev=1003.84, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=8.17%, ctx=141, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144639: Sat Aug 22 00:02:03 2026 read: IOPS=1, BW=1142KiB/s (1170kB/s)(6144KiB/5379msec) clat (msec): min=175, max=391, avg=279.71, stdev=91.80 lat (msec): min=175, max=391, avg=279.71, stdev=91.80 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 284], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 2031, max= 4079, per=89.07%, avg=3391.00, stdev=1177.82, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1142KiB/s (1170kB/s)(6144KiB/5379msec); 0 zone resets clat (msec): min=113, max=1097, avg=574.42, stdev=337.65 lat (msec): min=113, max=1097, avg=574.53, stdev=337.65 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 609], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2007, max= 2048, per=38.05%, avg=2027.83, stdev=13.78, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=7.87%, ctx=303, 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=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=144640: Sat Aug 22 00:02:03 2026 read: IOPS=1, BW=1223KiB/s (1253kB/s)(5120KiB/4185msec) clat (usec): min=484, max=621012, avg=259531.83, stdev=254146.81 lat (usec): min=486, max=621014, avg=259533.39, stdev=254147.07 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], 20.00th=[ 486], | 30.00th=[ 50070], 40.00th=[ 50070], 50.00th=[238027], 60.00th=[238027], | 70.00th=[387974], 80.00th=[387974], 90.00th=[624952], 95.00th=[624952], | 99.00th=[624952], 99.50th=[624952], 99.90th=[624952], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 3849, max= 4079, per=100.00%, avg=3964.00, stdev=162.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1713KiB/s (1754kB/s)(7168KiB/4185msec); 0 zone resets clat (msec): min=170, max=757, avg=395.38, stdev=214.49 lat (msec): min=170, max=757, avg=395.48, stdev=214.50 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 209], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 376], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 542], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1924, max= 2048, per=37.38%, avg=1992.20, stdev=56.61, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=9.99%, ctx=182, 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=3807KiB/s (3899kB/s), 419KiB/s-2404KiB/s (429kB/s-2461kB/s), io=20.0MiB (20.0MB), run=2982-5379msec WRITE: bw=5330KiB/s (5458kB/s), 1142KiB/s-2096KiB/s (1170kB/s-2146kB/s), io=28.0MiB (29.4MB), run=2982-5379msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144641: Sat Aug 22 00:02:03 2026 read: IOPS=1, BW=1580KiB/s (1618kB/s)(7168KiB/4536msec) clat (msec): min=109, max=346, avg=219.89, stdev=100.33 lat (msec): min=110, max=346, avg=219.90, stdev=100.33 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 124], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 243], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 326], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 1617, max= 3842, per=78.74%, avg=2796.00, stdev=1144.48, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1129KiB/s (1156kB/s)(5120KiB/4536msec); 0 zone resets clat (msec): min=262, max=705, avg=536.43, stdev=175.62 lat (msec): min=262, max=705, avg=536.52, stdev=175.62 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 2035, max= 4031, per=54.32%, avg=2700.33, stdev=1152.39, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=41.67%, 750=25.00% cpu : usr=0.07%, sys=3.33%, ctx=84, 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=144642: Sat Aug 22 00:02:03 2026 read: IOPS=0, BW=357KiB/s (366kB/s)(2048KiB/5729msec) clat (msec): min=181, max=571, avg=376.82, stdev=275.89 lat (msec): min=181, max=571, avg=376.83, stdev=275.89 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1921, max= 2048, per=55.89%, avg=1984.50, stdev=89.80, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1787KiB/s (1830kB/s)(10.0MiB/5729msec); 0 zone resets clat (msec): min=257, max=983, avg=468.45, stdev=246.21 lat (msec): min=257, max=983, avg=468.72, stdev=246.10 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 271], | 30.00th=[ 275], 40.00th=[ 313], 50.00th=[ 359], 60.00th=[ 372], | 70.00th=[ 451], 80.00th=[ 676], 90.00th=[ 735], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 2015, max= 4079, per=51.62%, avg=2565.86, stdev=913.92, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=8.33%, 500=58.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.32%, ctx=101, 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=144643: Sat Aug 22 00:02:03 2026 read: IOPS=1, BW=1306KiB/s (1338kB/s)(6144KiB/4703msec) clat (msec): min=72, max=498, avg=212.18, stdev=164.94 lat (msec): min=72, max=498, avg=212.18, stdev=164.94 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 90], | 30.00th=[ 90], 40.00th=[ 91], 50.00th=[ 91], 60.00th=[ 253], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 4031, max= 4079, per=100.00%, avg=4055.00, stdev=33.94, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1306KiB/s (1338kB/s)(6144KiB/4703msec); 0 zone resets clat (msec): min=234, max=886, avg=550.92, stdev=232.69 lat (msec): min=234, max=886, avg=551.24, stdev=232.61 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 518], 50.00th=[ 518], 60.00th=[ 617], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1526, max= 2048, per=37.76%, avg=1877.00, stdev=212.03, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=25.00%, 250=8.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.04%, ctx=65, 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=144644: Sat Aug 22 00:02:03 2026 read: IOPS=0, BW=888KiB/s (909kB/s)(5120KiB/5767msec) clat (msec): min=91, max=657, avg=336.37, stdev=249.23 lat (msec): min=91, max=657, avg=336.37, stdev=249.23 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2015, max= 2048, per=57.15%, avg=2029.25, stdev=16.86, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1243KiB/s (1273kB/s)(7168KiB/5767msec); 0 zone resets clat (msec): min=187, max=1016, avg=531.63, stdev=328.66 lat (msec): min=187, max=1016, avg=532.01, stdev=328.86 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 190], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 550], 60.00th=[ 743], | 70.00th=[ 743], 80.00th=[ 776], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1855, max= 2035, per=39.36%, avg=1956.50, stdev=83.96, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=16.67%, 750=33.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=2.41%, 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=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=3551KiB/s (3636kB/s), 357KiB/s-1580KiB/s (366kB/s-1618kB/s), io=20.0MiB (20.0MB), run=4536-5767msec WRITE: bw=4972KiB/s (5091kB/s), 1129KiB/s-1787KiB/s (1156kB/s-1830kB/s), io=28.0MiB (29.4MB), run=4536-5767msec 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=144651: Sat Aug 22 00:02:18 2026 read: IOPS=1, BW=4158KiB/s (4258kB/s)(12.0MiB/2955msec) clat (msec): min=897, max=1034, avg=943.47, stdev=78.87 lat (msec): min=897, max=1034, avg=943.47, stdev=78.87 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.07%, sys=11.27%, ctx=328, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144652: Sat Aug 22 00:02:18 2026 read: IOPS=0, BW=1272KiB/s (1303kB/s)(4096KiB/3220msec) clat (nsec): min=899786k, max=899786k, avg=899785648.00, stdev= 0.00 lat (nsec): min=899788k, max=899788k, avg=899788330.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7816, max= 7816, per=100.00%, avg=7816.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2544KiB/s (2605kB/s)(8192KiB/3220msec); 0 zone resets clat (msec): min=948, max=1331, avg=1139.73, stdev=270.62 lat (msec): min=948, max=1331, avg=1140.14, stdev=270.64 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8159, max= 8159, per=84.73%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.22%, ctx=117, 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=144653: Sat Aug 22 00:02:18 2026 write: IOPS=0, BW=3611KiB/s (3698kB/s)(12.0MiB/3403msec); 0 zone resets clat (msec): min=496, max=1417, avg=1087.52, stdev=513.22 lat (msec): min=496, max=1418, avg=1088.03, stdev=513.25 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8031, max= 8078, per=83.65%, avg=8054.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.17%, ctx=88, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144654: Sat Aug 22 00:02:18 2026 write: IOPS=1, BW=4271KiB/s (4374kB/s)(12.0MiB/2877msec); 0 zone resets clat (msec): min=515, max=1388, avg=889.20, stdev=450.05 lat (msec): min=516, max=1390, avg=889.99, stdev=450.56 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7772, max= 8126, per=82.55%, avg=7949.00, stdev=250.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.41%, ctx=56, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5088KiB/s (5210kB/s), 1272KiB/s-4158KiB/s (1303kB/s-4258kB/s), io=16.0MiB (16.8MB), run=2955-3220msec WRITE: bw=9629KiB/s (9860kB/s), 2544KiB/s-4271KiB/s (2605kB/s-4374kB/s), io=32.0MiB (33.6MB), run=2877-3403msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144656: Sat Aug 22 00:02:20 2026 read: IOPS=0, BW=2866KiB/s (2935kB/s)(12.0MiB/4287msec) clat (msec): min=678, max=1823, avg=1350.77, stdev=597.86 lat (msec): min=678, max=1823, avg=1350.77, stdev=597.86 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.05%, sys=2.73%, 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=144657: Sat Aug 22 00:02:20 2026 read: IOPS=0, BW=1009KiB/s (1034kB/s)(4096KiB/4058msec) clat (nsec): min=1718.5M, max=1718.5M, avg=1718498077.00, stdev= 0.00 lat (nsec): min=1718.5M, max=1718.5M, avg=1718500620.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1720], 5.00th=[ 1720], 10.00th=[ 1720], 20.00th=[ 1720], | 30.00th=[ 1720], 40.00th=[ 1720], 50.00th=[ 1720], 60.00th=[ 1720], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2019KiB/s (2067kB/s)(8192KiB/4058msec); 0 zone resets clat (msec): min=360, max=1727, avg=1043.80, stdev=966.76 lat (msec): min=360, max=1727, avg=1044.21, stdev=966.78 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 1720], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.51%, ctx=52, 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=144658: Sat Aug 22 00:02:20 2026 write: IOPS=0, BW=3030KiB/s (3102kB/s)(12.0MiB/4056msec); 0 zone resets clat (msec): min=940, max=1505, avg=1306.33, stdev=317.47 lat (msec): min=941, max=1506, avg=1307.35, stdev=317.03 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8094, max= 8110, per=100.00%, avg=8102.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.66%, ctx=64, 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=144659: Sat Aug 22 00:02:20 2026 write: IOPS=1, BW=4344KiB/s (4448kB/s)(12.0MiB/2829msec); 0 zone resets clat (msec): min=821, max=1029, avg=921.25, stdev=104.48 lat (msec): min=821, max=1030, avg=921.61, stdev=104.55 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7892, max= 8110, per=99.10%, avg=8001.00, stdev=154.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.14%, sys=5.76%, ctx=58, 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=3822KiB/s (3914kB/s), 1009KiB/s-2866KiB/s (1034kB/s-2935kB/s), io=16.0MiB (16.8MB), run=4058-4287msec WRITE: bw=8075KiB/s (8269kB/s), 2019KiB/s-4344KiB/s (2067kB/s-4448kB/s), io=32.0MiB (33.6MB), run=2829-4058msec