== sanity test 398b: DIO and buffer IO race ============== 03:48:59 (1768553339) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.30372 s, 9.5 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=186049: Fri Jan 16 03:51:16 2026 read: IOPS=13, BW=52.9KiB/s (54.2kB/s)(5992KiB/113303msec) clat (usec): min=105, max=1001.4k, avg=42264.12, stdev=36151.04 lat (usec): min=106, max=1001.4k, avg=42266.40, stdev=36151.04 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 7767], 10.00th=[ 16057], | 20.00th=[ 21103], 30.00th=[ 25822], 40.00th=[ 30802], | 50.00th=[ 35914], 60.00th=[ 42730], 70.00th=[ 50594], | 80.00th=[ 59507], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[ 124257], 99.50th=[ 143655], 99.90th=[ 231736], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 111, per=25.52%, avg=52.58, stdev=18.18, samples=222 iops : min= 1, max= 27, avg=12.49, stdev= 4.59, samples=222 write: IOPS=13, BW=55.6KiB/s (56.9kB/s)(6296KiB/113303msec); 0 zone resets clat (usec): min=766, max=261964, avg=31642.86, stdev=33993.69 lat (usec): min=767, max=261965, avg=31647.43, stdev=33994.92 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1303], 20.00th=[ 2835], | 30.00th=[ 5342], 40.00th=[ 11338], 50.00th=[ 21890], 60.00th=[ 31065], | 70.00th=[ 40633], 80.00th=[ 56886], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[147850], 99.50th=[166724], 99.90th=[208667], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 7, max= 168, per=25.63%, avg=55.36, stdev=23.39, samples=222 iops : min= 1, max= 42, avg=13.18, stdev= 5.90, samples=222 lat (usec) : 250=1.86%, 500=0.10%, 750=0.10%, 1000=0.42% lat (msec) : 2=8.04%, 4=4.59%, 10=6.97%, 20=11.33%, 50=39.49% lat (msec) : 100=22.72%, 250=4.33%, 500=0.03%, 2000=0.03% cpu : usr=0.08%, sys=4.77%, ctx=6280, 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=186050: Fri Jan 16 03:51:16 2026 read: IOPS=13, BW=52.4KiB/s (53.7kB/s)(5940KiB/113373msec) clat (usec): min=109, max=886679, avg=42653.49, stdev=35636.78 lat (usec): min=110, max=886681, avg=42659.37, stdev=35636.82 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 10290], 10.00th=[ 16319], 20.00th=[ 21365], | 30.00th=[ 25822], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 49546], 80.00th=[ 61080], 90.00th=[ 76022], 95.00th=[ 91751], | 99.00th=[137364], 99.50th=[177210], 99.90th=[267387], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 119, per=25.28%, avg=52.08, stdev=20.38, samples=222 iops : min= 1, max= 29, avg=12.36, stdev= 5.12, samples=222 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(6348KiB/113373msec); 0 zone resets clat (usec): min=711, max=211835, avg=31410.48, stdev=32434.98 lat (usec): min=712, max=211836, avg=31411.89, stdev=32435.02 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1139], 10.00th=[ 1287], 20.00th=[ 2606], | 30.00th=[ 5800], 40.00th=[ 14222], 50.00th=[ 22938], 60.00th=[ 30802], | 70.00th=[ 42206], 80.00th=[ 55837], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[139461], 99.50th=[160433], 99.90th=[210764], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 7, max= 136, per=25.75%, avg=55.62, stdev=23.12, samples=222 iops : min= 1, max= 34, avg=13.25, stdev= 5.81, samples=222 lat (usec) : 250=1.66%, 500=0.10%, 750=0.07%, 1000=0.49% lat (msec) : 2=8.14%, 4=5.21%, 10=5.70%, 20=10.87%, 50=40.85% lat (msec) : 100=23.18%, 250=3.65%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.87%, ctx=6281, 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=186051: Fri Jan 16 03:51:16 2026 read: IOPS=12, BW=51.8KiB/s (53.0kB/s)(6028KiB/116358msec) clat (usec): min=120, max=234196, avg=41975.16, stdev=27247.99 lat (usec): min=121, max=234197, avg=41977.82, stdev=27248.30 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 9372], 10.00th=[ 14877], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30540], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 50594], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[133694], 99.50th=[143655], 99.90th=[210764], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 7, max= 119, per=25.01%, avg=51.52, stdev=21.32, samples=227 iops : min= 1, max= 29, avg=12.22, stdev= 5.36, samples=227 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(6260KiB/116358msec); 0 zone resets clat (usec): min=771, max=910628, avg=33814.94, stdev=41139.33 lat (usec): min=772, max=910632, avg=33821.23, stdev=41137.27 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1352], 20.00th=[ 3294], | 30.00th=[ 6587], 40.00th=[ 15533], 50.00th=[ 23987], 60.00th=[ 32637], | 70.00th=[ 43254], 80.00th=[ 57410], 90.00th=[ 80217], 95.00th=[101188], | 99.00th=[152044], 99.50th=[156238], 99.90th=[337642], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 127, per=24.60%, avg=53.13, stdev=22.67, samples=228 iops : min= 1, max= 31, avg=12.63, stdev= 5.71, samples=228 lat (usec) : 250=1.50%, 500=0.16%, 750=0.10%, 1000=0.29% lat (msec) : 2=6.84%, 4=4.69%, 10=6.64%, 20=11.36%, 50=40.85% lat (msec) : 100=23.21%, 250=4.30%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.80%, ctx=6478, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186052: Fri Jan 16 03:51:16 2026 read: IOPS=13, BW=52.8KiB/s (54.1kB/s)(6052KiB/114647msec) clat (usec): min=99, max=276288, avg=41468.41, stdev=28181.03 lat (usec): min=100, max=276289, avg=41474.98, stdev=28185.33 clat percentiles (usec): | 1.00th=[ 145], 5.00th=[ 717], 10.00th=[ 15139], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30016], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 60556], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[125305], 99.50th=[164627], 99.90th=[267387], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 111, per=25.61%, avg=52.75, stdev=19.99, samples=224 iops : min= 1, max= 27, avg=12.54, stdev= 5.04, samples=224 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6236KiB/114647msec); 0 zone resets clat (usec): min=701, max=928580, avg=33193.41, stdev=41906.29 lat (usec): min=701, max=928583, avg=33195.98, stdev=41906.21 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1156], 10.00th=[ 1237], 20.00th=[ 2737], | 30.00th=[ 6325], 40.00th=[ 14484], 50.00th=[ 22676], 60.00th=[ 30540], | 70.00th=[ 40633], 80.00th=[ 56886], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[160433], 99.50th=[181404], 99.90th=[210764], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 119, per=25.06%, avg=54.13, stdev=22.76, samples=225 iops : min= 1, max= 29, avg=12.88, stdev= 5.73, samples=225 lat (usec) : 100=0.03%, 250=2.12%, 500=0.23%, 750=0.13%, 1000=0.39% lat (msec) : 2=7.85%, 4=4.43%, 10=5.89%, 20=11.72%, 50=40.27% lat (msec) : 100=22.36%, 250=4.49%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.79%, ctx=6324, 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=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=206KiB/s (211kB/s), 51.8KiB/s-52.9KiB/s (53.0kB/s-54.2kB/s), io=23.4MiB (24.6MB), run=113303-116358msec WRITE: bw=216KiB/s (221kB/s), 53.8KiB/s-55.0KiB/s (55.1kB/s-57.3kB/s), io=24.6MiB (25.7MB), run=113303-116358msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186044: Fri Jan 16 03:51:51 2026 read: IOPS=9, BW=39.5KiB/s (40.5kB/s)(5992KiB/151594msec) clat (msec): min=4, max=1063, avg=39.50, stdev=43.83 lat (msec): min=4, max=1063, avg=39.50, stdev=43.83 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 86], 95.00th=[ 115], | 99.00th=[ 169], 99.50th=[ 197], 99.90th=[ 284], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 152, per=25.43%, avg=39.93, stdev=28.31, samples=291 iops : min= 1, max= 38, avg= 9.32, stdev= 7.12, samples=291 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(6296KiB/151594msec); 0 zone resets clat (msec): min=7, max=337, avg=58.35, stdev=40.94 lat (msec): min=7, max=337, avg=58.35, stdev=40.94 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 113], 95.00th=[ 140], | 99.00th=[ 203], 99.50th=[ 224], 99.90th=[ 288], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 151, per=25.46%, avg=42.02, stdev=25.14, samples=291 iops : min= 1, max= 37, avg= 9.85, stdev= 6.32, samples=291 lat (msec) : 10=3.48%, 20=19.17%, 50=42.42%, 100=23.80%, 250=10.84% lat (msec) : 500=0.26%, 2000=0.03% cpu : usr=0.06%, sys=1.81%, ctx=4823, 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=186045: Fri Jan 16 03:51:51 2026 read: IOPS=9, BW=39.3KiB/s (40.2kB/s)(5940KiB/151194msec) clat (msec): min=5, max=977, avg=38.76, stdev=42.63 lat (msec): min=5, max=977, avg=38.76, stdev=42.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 80], 95.00th=[ 112], | 99.00th=[ 180], 99.50th=[ 205], 99.90th=[ 347], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 159, per=25.29%, avg=39.71, stdev=27.67, samples=292 iops : min= 1, max= 39, avg= 9.27, stdev= 6.97, samples=292 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(6348KiB/151194msec); 0 zone resets clat (msec): min=9, max=448, avg=58.66, stdev=41.75 lat (msec): min=9, max=448, avg=58.67, stdev=41.75 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 47], 60.00th=[ 56], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 111], 95.00th=[ 142], | 99.00th=[ 211], 99.50th=[ 247], 99.90th=[ 300], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7, max= 128, per=25.48%, avg=42.03, stdev=25.29, samples=295 iops : min= 1, max= 32, avg= 9.85, stdev= 6.37, samples=295 lat (msec) : 10=3.09%, 20=17.74%, 50=44.43%, 100=23.96%, 250=10.45% lat (msec) : 500=0.29%, 1000=0.03% cpu : usr=0.05%, sys=1.78%, ctx=4791, 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=186046: Fri Jan 16 03:51:51 2026 read: IOPS=9, BW=39.6KiB/s (40.5kB/s)(6028KiB/152256msec) clat (msec): min=5, max=348, avg=40.29, stdev=36.34 lat (msec): min=5, max=348, avg=40.30, stdev=36.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 60], 90.00th=[ 88], 95.00th=[ 118], | 99.00th=[ 174], 99.50th=[ 205], 99.90th=[ 232], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 183, per=25.22%, avg=39.60, stdev=27.75, samples=297 iops : min= 1, max= 45, avg= 9.25, stdev= 6.99, samples=297 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6260KiB/152256msec); 0 zone resets clat (msec): min=8, max=1011, avg=58.15, stdev=48.64 lat (msec): min=8, max=1011, avg=58.16, stdev=48.64 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 54], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 113], 95.00th=[ 142], | 99.00th=[ 205], 99.50th=[ 257], 99.90th=[ 451], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 144, per=24.99%, avg=41.23, stdev=26.43, samples=296 iops : min= 1, max= 36, avg= 9.65, stdev= 6.66, samples=296 lat (msec) : 10=3.29%, 20=17.81%, 50=44.82%, 100=23.67%, 250=10.09% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.06%, sys=1.81%, ctx=4823, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186047: Fri Jan 16 03:51:51 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(6052KiB/152173msec) clat (msec): min=4, max=351, avg=39.48, stdev=35.01 lat (msec): min=4, max=351, avg=39.48, stdev=35.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 87], 95.00th=[ 109], | 99.00th=[ 169], 99.50th=[ 184], 99.90th=[ 271], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 159, per=25.88%, avg=40.63, stdev=26.83, samples=291 iops : min= 1, max= 39, avg= 9.51, stdev= 6.75, samples=291 write: IOPS=10, BW=40.0KiB/s (41.0kB/s)(6236KiB/152173msec); 0 zone resets clat (msec): min=8, max=1000, avg=58.94, stdev=48.37 lat (msec): min=8, max=1000, avg=58.94, stdev=48.37 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 68], 80.00th=[ 84], 90.00th=[ 115], 95.00th=[ 144], | 99.00th=[ 211], 99.50th=[ 255], 99.90th=[ 376], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 135, per=24.78%, avg=40.89, stdev=25.75, samples=298 iops : min= 1, max= 33, avg= 9.57, stdev= 6.49, samples=298 lat (msec) : 10=2.70%, 20=18.82%, 50=43.65%, 100=24.32%, 250=10.12% lat (msec) : 500=0.36%, 2000=0.03% cpu : usr=0.06%, sys=1.80%, ctx=4871, 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=158KiB/s (161kB/s), 39.3KiB/s-39.8KiB/s (40.2kB/s-40.7kB/s), io=23.4MiB (24.6MB), run=151194-152256msec WRITE: bw=165KiB/s (169kB/s), 40.0KiB/s-41.0KiB/s (41.0kB/s-42.0kB/s), io=24.6MiB (25.7MB), run=151194-152256msec 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=186089: Fri Jan 16 03:52:33 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(5920KiB/32924msec) clat (usec): min=110, max=328932, avg=48288.39, stdev=37306.55 lat (usec): min=110, max=328933, avg=48293.79, stdev=37305.99 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 198], 10.00th=[ 13304], 20.00th=[ 23987], | 30.00th=[ 31065], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 86508], 95.00th=[111674], | 99.00th=[206570], 99.50th=[265290], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 317, per=25.18%, avg=178.30, stdev=66.05, samples=64 iops : min= 1, max= 19, avg=10.31, stdev= 4.20, samples=64 write: IOPS=12, BW=193KiB/s (198kB/s)(6368KiB/32924msec); 0 zone resets clat (usec): min=1268, max=262756, avg=37308.33, stdev=39996.85 lat (usec): min=1269, max=262758, avg=37312.07, stdev=39996.67 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1778], 10.00th=[ 2638], 20.00th=[ 5538], | 30.00th=[ 9241], 40.00th=[ 16450], 50.00th=[ 24773], 60.00th=[ 33424], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 86508], 95.00th=[112722], | 99.00th=[210764], 99.50th=[229639], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 31, max= 411, per=25.97%, avg=193.50, stdev=87.04, samples=64 iops : min= 1, max= 25, avg=11.28, stdev= 5.50, samples=64 lat (usec) : 250=2.99%, 750=0.26%, 1000=0.13% lat (msec) : 2=3.78%, 4=4.43%, 10=8.72%, 20=10.16%, 50=36.72% lat (msec) : 100=26.56%, 250=5.86%, 500=0.39% cpu : usr=0.07%, sys=5.03%, ctx=1694, 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=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=186090: Fri Jan 16 03:52:33 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5744KiB/33215msec) clat (usec): min=133, max=235175, avg=47965.21, stdev=33671.02 lat (usec): min=133, max=235177, avg=47966.39, stdev=33671.05 clat percentiles (usec): | 1.00th=[ 145], 5.00th=[ 184], 10.00th=[ 16712], 20.00th=[ 24773], | 30.00th=[ 28967], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 53740], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[113771], | 99.00th=[175113], 99.50th=[219153], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 351, per=24.46%, avg=173.18, stdev=70.99, samples=65 iops : min= 1, max= 21, avg= 9.98, stdev= 4.48, samples=65 write: IOPS=12, BW=197KiB/s (202kB/s)(6544KiB/33215msec); 0 zone resets clat (usec): min=1313, max=266740, avg=38608.63, stdev=38762.04 lat (usec): min=1315, max=266742, avg=38611.21, stdev=38762.91 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1778], 10.00th=[ 3228], 20.00th=[ 6390], | 30.00th=[ 12387], 40.00th=[ 19792], 50.00th=[ 27395], 60.00th=[ 37487], | 70.00th=[ 47449], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[177210], 99.50th=[193987], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 62, max= 349, per=26.79%, avg=199.58, stdev=76.29, samples=64 iops : min= 3, max= 21, avg=11.66, stdev= 4.84, samples=64 lat (usec) : 250=2.73%, 500=0.13%, 750=0.13%, 1000=0.13% lat (msec) : 2=4.43%, 4=2.21%, 10=8.20%, 20=10.16%, 50=40.49% lat (msec) : 100=23.83%, 250=7.42%, 500=0.13% cpu : usr=0.07%, sys=5.36%, ctx=1807, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186091: Fri Jan 16 03:52:33 2026 read: IOPS=11, BW=185KiB/s (190kB/s)(6256KiB/33801msec) clat (usec): min=117, max=191318, avg=47435.46, stdev=32654.04 lat (usec): min=117, max=191319, avg=47436.64, stdev=32654.04 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 208], 10.00th=[ 13173], 20.00th=[ 22676], | 30.00th=[ 28443], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 50594], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[105382], | 99.00th=[164627], 99.50th=[170918], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 379, per=26.44%, avg=187.22, stdev=68.73, samples=65 iops : min= 1, max= 23, avg=10.89, stdev= 4.36, samples=65 write: IOPS=11, BW=178KiB/s (183kB/s)(6032KiB/33801msec); 0 zone resets clat (usec): min=1160, max=235979, avg=39892.58, stdev=42121.50 lat (usec): min=1162, max=235982, avg=39895.80, stdev=42122.27 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1729], 10.00th=[ 2212], 20.00th=[ 5997], | 30.00th=[ 10683], 40.00th=[ 17171], 50.00th=[ 27132], 60.00th=[ 35390], | 70.00th=[ 49021], 80.00th=[ 65799], 90.00th=[100140], 95.00th=[137364], | 99.00th=[173016], 99.50th=[189793], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 465, per=23.48%, avg=174.94, stdev=86.69, samples=66 iops : min= 1, max= 29, avg=10.11, stdev= 5.49, samples=66 lat (usec) : 250=2.86%, 500=1.04%, 1000=0.13% lat (msec) : 2=4.56%, 4=3.65%, 10=6.51%, 20=9.77%, 50=36.20% lat (msec) : 100=27.34%, 250=7.94% cpu : usr=0.07%, sys=4.69%, ctx=1685, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186092: Fri Jan 16 03:52:33 2026 read: IOPS=11, BW=187KiB/s (192kB/s)(6032KiB/32242msec) clat (usec): min=125, max=228569, avg=47578.63, stdev=35217.12 lat (usec): min=125, max=228570, avg=47579.80, stdev=35217.10 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 174], 10.00th=[ 1647], 20.00th=[ 23462], | 30.00th=[ 29754], 40.00th=[ 34866], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[116917], | 99.00th=[191890], 99.50th=[204473], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 341, per=26.13%, avg=185.02, stdev=68.52, samples=63 iops : min= 1, max= 21, avg=10.75, stdev= 4.32, samples=63 write: IOPS=12, BW=194KiB/s (199kB/s)(6256KiB/32242msec); 0 zone resets clat (usec): min=1464, max=235132, avg=36310.40, stdev=38230.90 lat (usec): min=1465, max=235773, avg=36315.28, stdev=38238.51 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1958], 10.00th=[ 3130], 20.00th=[ 5473], | 30.00th=[ 9765], 40.00th=[ 14877], 50.00th=[ 25822], 60.00th=[ 33817], | 70.00th=[ 44827], 80.00th=[ 60556], 90.00th=[ 82314], 95.00th=[110625], | 99.00th=[193987], 99.50th=[208667], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 403, per=25.87%, avg=192.76, stdev=83.59, samples=63 iops : min= 1, max= 25, avg=11.24, stdev= 5.31, samples=63 lat (usec) : 250=3.65%, 500=0.65%, 750=0.26%, 1000=0.13% lat (msec) : 2=3.12%, 4=4.82%, 10=8.72%, 20=9.38%, 50=36.33% lat (msec) : 100=25.78%, 250=7.16% cpu : usr=0.07%, sys=4.89%, ctx=1631, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=709KiB/s (726kB/s), 173KiB/s-187KiB/s (177kB/s-192kB/s), io=23.4MiB (24.5MB), run=32242-33801msec WRITE: bw=746KiB/s (763kB/s), 178KiB/s-197KiB/s (183kB/s-202kB/s), io=24.6MiB (25.8MB), run=32242-33801msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186094: Fri Jan 16 03:52:44 2026 read: IOPS=8, BW=136KiB/s (140kB/s)(5920KiB/43375msec) clat (msec): min=8, max=261, avg=45.15, stdev=40.36 lat (msec): min=8, max=261, avg=45.15, stdev=40.36 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 96], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 255], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 30, max= 415, per=25.47%, avg=138.55, stdev=83.95, samples=83 iops : min= 1, max= 25, avg= 7.89, stdev= 5.28, samples=83 write: IOPS=9, BW=147KiB/s (150kB/s)(6368KiB/43375msec); 0 zone resets clat (msec): min=15, max=266, avg=66.74, stdev=47.12 lat (msec): min=15, max=266, avg=66.75, stdev=47.12 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 71], 80.00th=[ 93], 90.00th=[ 138], 95.00th=[ 169], | 99.00th=[ 251], 99.50th=[ 264], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 26, max= 341, per=25.93%, avg=148.60, stdev=80.51, samples=84 iops : min= 1, max= 21, avg= 8.54, stdev= 5.05, samples=84 lat (msec) : 10=0.65%, 20=11.59%, 50=49.35%, 100=24.35%, 250=13.41% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.67%, ctx=1180, 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=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=186095: Fri Jan 16 03:52:44 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(5744KiB/43961msec) clat (msec): min=5, max=259, avg=45.81, stdev=41.84 lat (msec): min=5, max=259, avg=45.81, stdev=41.84 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 49], 80.00th=[ 66], 90.00th=[ 105], 95.00th=[ 133], | 99.00th=[ 234], 99.50th=[ 257], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 26, max= 479, per=24.67%, avg=134.20, stdev=89.51, samples=83 iops : min= 1, max= 29, avg= 7.63, stdev= 5.61, samples=83 write: IOPS=9, BW=149KiB/s (152kB/s)(6544KiB/43961msec); 0 zone resets clat (msec): min=11, max=291, avg=67.05, stdev=47.43 lat (msec): min=11, max=291, avg=67.06, stdev=47.43 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 62], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 134], 95.00th=[ 159], | 99.00th=[ 230], 99.50th=[ 251], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 26, max= 403, per=25.73%, avg=147.41, stdev=88.36, samples=86 iops : min= 1, max= 25, avg= 8.47, stdev= 5.56, samples=86 lat (msec) : 10=1.43%, 20=13.28%, 50=44.92%, 100=25.65%, 250=14.06% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.69%, ctx=1205, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186096: Fri Jan 16 03:52:44 2026 read: IOPS=8, BW=143KiB/s (146kB/s)(6256KiB/43807msec) clat (msec): min=6, max=285, avg=47.64, stdev=43.54 lat (msec): min=6, max=285, avg=47.65, stdev=43.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 67], 90.00th=[ 103], 95.00th=[ 130], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 28, max= 413, per=27.02%, avg=146.98, stdev=98.14, samples=84 iops : min= 1, max= 25, avg= 8.43, stdev= 6.18, samples=84 write: IOPS=8, BW=138KiB/s (141kB/s)(6032KiB/43807msec); 0 zone resets clat (msec): min=11, max=291, avg=66.54, stdev=46.71 lat (msec): min=11, max=291, avg=66.55, stdev=46.72 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 82], 80.00th=[ 97], 90.00th=[ 131], 95.00th=[ 161], | 99.00th=[ 230], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 382, per=23.85%, avg=136.67, stdev=83.57, samples=86 iops : min= 1, max= 23, avg= 7.79, stdev= 5.25, samples=86 lat (msec) : 10=1.43%, 20=12.50%, 50=45.31%, 100=26.04%, 250=14.19% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.75%, ctx=1240, 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=186097: Fri Jan 16 03:52:44 2026 read: IOPS=8, BW=142KiB/s (145kB/s)(6032KiB/42544msec) clat (msec): min=5, max=288, avg=45.70, stdev=44.61 lat (msec): min=5, max=288, avg=45.70, stdev=44.61 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 103], 95.00th=[ 148], | 99.00th=[ 264], 99.50th=[ 266], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 540, per=27.22%, avg=148.10, stdev=93.08, samples=79 iops : min= 1, max= 33, avg= 8.51, stdev= 5.86, samples=79 write: IOPS=9, BW=147KiB/s (151kB/s)(6256KiB/42544msec); 0 zone resets clat (msec): min=12, max=285, avg=64.56, stdev=44.92 lat (msec): min=12, max=285, avg=64.56, stdev=44.92 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 49], 60.00th=[ 60], | 70.00th=[ 72], 80.00th=[ 94], 90.00th=[ 120], 95.00th=[ 165], | 99.00th=[ 228], 99.50th=[ 245], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 446, per=26.05%, avg=149.27, stdev=85.50, samples=82 iops : min= 1, max= 27, avg= 8.59, stdev= 5.38, samples=82 lat (msec) : 10=1.56%, 20=13.15%, 50=48.83%, 100=22.27%, 250=13.41% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.69%, ctx=1151, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=545KiB/s (558kB/s), 131KiB/s-143KiB/s (134kB/s-146kB/s), io=23.4MiB (24.5MB), run=42544-43961msec WRITE: bw=573KiB/s (587kB/s), 138KiB/s-149KiB/s (141kB/s-152kB/s), io=24.6MiB (25.8MB), run=42544-43961msec 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=186110: Fri Jan 16 03:53:03 2026 read: IOPS=1, BW=1225KiB/s (1254kB/s)(7168KiB/5853msec) clat (msec): min=68, max=2375, avg=461.29, stdev=847.45 lat (msec): min=68, max=2375, avg=461.29, stdev=847.45 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 86], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 129], 60.00th=[ 174], | 70.00th=[ 174], 80.00th=[ 292], 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= 1980, max= 4284, per=81.16%, avg=2582.50, stdev=1134.61, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=875KiB/s (896kB/s)(5120KiB/5853msec); 0 zone resets clat (msec): min=169, max=771, avg=504.48, stdev=261.42 lat (msec): min=169, max=771, avg=504.60, stdev=261.42 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 2019, max= 4071, per=57.05%, avg=2541.00, stdev=1020.05, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=2.82%, ctx=85, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186111: Fri Jan 16 03:53:03 2026 read: IOPS=0, BW=318KiB/s (326kB/s)(2048KiB/6436msec) clat (msec): min=78, max=131, avg=104.94, stdev=37.88 lat (msec): min=78, max=131, avg=104.94, stdev=37.88 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 79], 60.00th=[ 132], | 70.00th=[ 132], 80.00th=[ 132], 90.00th=[ 132], 95.00th=[ 132], | 99.00th=[ 132], 99.50th=[ 132], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 1374, max= 1980, per=52.70%, avg=1677.00, stdev=428.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1591KiB/s (1629kB/s)(10.0MiB/6436msec); 0 zone resets clat (msec): min=81, max=2570, avg=609.30, stdev=733.84 lat (msec): min=81, max=2570, avg=609.60, stdev=733.87 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 148], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 255], 60.00th=[ 535], | 70.00th=[ 676], 80.00th=[ 701], 90.00th=[ 743], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 1374, max= 4079, per=49.36%, avg=2198.50, stdev=793.22, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 100=16.67%, 250=33.33%, 500=8.33%, 750=33.33%, >=2000=8.33% cpu : usr=0.02%, sys=2.92%, ctx=105, 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=186112: Fri Jan 16 03:53:03 2026 read: IOPS=1, BW=1038KiB/s (1063kB/s)(6144KiB/5917msec) clat (msec): min=96, max=545, avg=324.58, stdev=205.25 lat (msec): min=96, max=545, avg=324.59, stdev=205.26 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 468], | 70.00th=[ 510], 80.00th=[ 510], 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= 1980, max= 4039, per=79.33%, avg=2524.25, stdev=1010.22, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1038KiB/s (1063kB/s)(6144KiB/5917msec); 0 zone resets clat (msec): min=98, max=2247, avg=656.26, stdev=816.64 lat (msec): min=99, max=2247, avg=656.38, stdev=816.67 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 326], | 70.00th=[ 793], 80.00th=[ 793], 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= 2031, max= 4190, per=57.74%, avg=2571.75, stdev=1078.83, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.03%, ctx=78, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=186113: Fri Jan 16 03:53:03 2026 read: IOPS=0, BW=809KiB/s (828kB/s)(5120KiB/6330msec) clat (msec): min=128, max=601, avg=350.77, stdev=196.53 lat (msec): min=128, max=601, avg=350.77, stdev=196.53 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2031, max= 3961, per=84.17%, avg=2678.33, stdev=1110.84, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1132KiB/s (1160kB/s)(7168KiB/6330msec); 0 zone resets clat (msec): min=119, max=2250, avg=638.99, stdev=745.17 lat (msec): min=119, max=2251, avg=639.26, stdev=745.45 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 203], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 326], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 684], 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= 2019, max= 4055, per=58.52%, avg=2606.40, stdev=892.00, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=25.00%, 750=33.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.72%, ctx=60, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3182KiB/s (3258kB/s), 318KiB/s-1225KiB/s (326kB/s-1254kB/s), io=20.0MiB (20.0MB), run=5853-6436msec WRITE: bw=4455KiB/s (4562kB/s), 875KiB/s-1591KiB/s (896kB/s-1629kB/s), io=28.0MiB (29.4MB), run=5853-6436msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186115: Fri Jan 16 03:53:03 2026 read: IOPS=1, BW=1583KiB/s (1621kB/s)(7168KiB/4528msec) clat (msec): min=4, max=2434, avg=477.99, stdev=869.36 lat (msec): min=4, max=2434, avg=477.99, stdev=869.36 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 13], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 218], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 279], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1950, max= 4000, per=100.00%, avg=3266.33, stdev=1142.48, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1131KiB/s (1158kB/s)(5120KiB/4528msec); 0 zone resets clat (msec): min=137, max=420, avg=236.08, stdev=136.07 lat (msec): min=138, max=420, avg=236.18, stdev=136.06 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 1950, max= 6023, per=88.00%, avg=3986.50, stdev=2880.05, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 10=8.33%, 20=8.33%, 250=50.00%, 500=25.00%, >=2000=8.33% cpu : usr=0.02%, sys=9.12%, ctx=516, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186116: Fri Jan 16 03:53:03 2026 read: IOPS=0, BW=327KiB/s (334kB/s)(2048KiB/6272msec) clat (msec): min=185, max=254, avg=220.07, stdev=48.19 lat (msec): min=185, max=254, avg=220.07, stdev=48.19 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 255], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 1924, max= 1992, per=60.51%, avg=1958.00, stdev=48.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1633KiB/s (1672kB/s)(10.0MiB/6272msec); 0 zone resets clat (msec): min=108, max=2704, avg=582.24, stdev=777.85 lat (msec): min=108, max=2704, avg=582.37, stdev=777.82 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 165], 50.00th=[ 271], 60.00th=[ 351], | 70.00th=[ 558], 80.00th=[ 617], 90.00th=[ 743], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 2007, max= 4063, per=66.66%, avg=3019.50, stdev=1092.52, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=8.88%, ctx=157, 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=186117: Fri Jan 16 03:53:03 2026 read: IOPS=1, BW=1300KiB/s (1331kB/s)(6144KiB/4726msec) clat (usec): min=559, max=222032, avg=106029.35, stdev=103665.96 lat (usec): min=560, max=222033, avg=106030.45, stdev=103665.77 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 6128], | 30.00th=[ 6128], 40.00th=[ 32375], 50.00th=[ 32375], 60.00th=[173016], | 70.00th=[202376], 80.00th=[202376], 90.00th=[221250], 95.00th=[221250], | 99.00th=[221250], 99.50th=[221250], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 1924, max= 4015, per=100.00%, avg=3313.00, stdev=1202.93, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1300KiB/s (1331kB/s)(6144KiB/4726msec); 0 zone resets clat (msec): min=209, max=2291, avg=678.29, stdev=795.18 lat (msec): min=209, max=2291, avg=678.37, stdev=795.21 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 409], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 2000, max= 3849, per=52.64%, avg=2384.40, stdev=818.90, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 50=8.33%, 250=33.33%, 500=33.33%, >=2000=8.33% cpu : usr=0.02%, sys=5.80%, ctx=108, 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=186118: Fri Jan 16 03:53:03 2026 read: IOPS=0, BW=809KiB/s (829kB/s)(5120KiB/6328msec) clat (usec): min=748, max=514645, avg=168979.26, stdev=211165.27 lat (usec): min=750, max=514647, avg=168980.61, stdev=211165.56 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], 20.00th=[ 750], | 30.00th=[ 906], 40.00th=[ 906], 50.00th=[130548], 60.00th=[130548], | 70.00th=[198181], 80.00th=[198181], 90.00th=[513803], 95.00th=[513803], | 99.00th=[513803], 99.50th=[513803], 99.90th=[513803], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 3849, max= 4087, per=100.00%, avg=3968.00, stdev=168.29, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1133KiB/s (1160kB/s)(7168KiB/6328msec); 0 zone resets clat (msec): min=230, max=2583, avg=782.34, stdev=810.04 lat (msec): min=231, max=2583, avg=782.59, stdev=810.08 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 321], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 550], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 701], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 1924, max= 4039, per=51.13%, avg=2316.00, stdev=844.63, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=25.00%, 500=8.33%, 750=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=6.18%, ctx=143, 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=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=3236KiB/s (3314kB/s), 327KiB/s-1583KiB/s (334kB/s-1621kB/s), io=20.0MiB (20.0MB), run=4528-6328msec WRITE: bw=4531KiB/s (4640kB/s), 1131KiB/s-1633KiB/s (1158kB/s-1672kB/s), io=28.0MiB (29.4MB), run=4528-6328msec 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=186130: Fri Jan 16 03:53:20 2026 read: IOPS=0, BW=3836KiB/s (3928kB/s)(12.0MiB/3203msec) clat (msec): min=261, max=2428, avg=1018.69, stdev=1222.24 lat (msec): min=261, max=2428, avg=1018.69, stdev=1222.24 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min=16000, max=16000, per=100.00%, avg=16000.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.40%, ctx=42, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=186131: Fri Jan 16 03:53:20 2026 read: IOPS=0, BW=1069KiB/s (1095kB/s)(4096KiB/3832msec) clat (nsec): min=2784.6M, max=2784.6M, avg=2784648745.00, stdev= 0.00 lat (nsec): min=2784.7M, max=2784.7M, avg=2784651447.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2769], 5.00th=[ 2769], 10.00th=[ 2769], 20.00th=[ 2769], | 30.00th=[ 2769], 40.00th=[ 2769], 50.00th=[ 2769], 60.00th=[ 2769], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] 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=2138KiB/s (2189kB/s)(8192KiB/3832msec); 0 zone resets clat (msec): min=382, max=603, avg=492.74, stdev=156.27 lat (msec): min=382, max=603, avg=493.14, stdev=156.33 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 8047, max= 8047, per=94.11%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.45%, ctx=46, 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=186132: Fri Jan 16 03:53:20 2026 write: IOPS=0, BW=4078KiB/s (4176kB/s)(12.0MiB/3013msec); 0 zone resets clat (msec): min=287, max=1865, avg=984.82, stdev=804.76 lat (msec): min=287, max=1865, avg=985.20, stdev=804.79 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8192, max= 8192, per=95.80%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.02%, ctx=42, 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=186133: Fri Jan 16 03:53:20 2026 write: IOPS=0, BW=3276KiB/s (3355kB/s)(12.0MiB/3751msec); 0 zone resets clat (msec): min=505, max=2425, avg=1226.06, stdev=1045.86 lat (msec): min=505, max=2426, avg=1226.74, stdev=1045.90 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7543, max= 8062, per=91.25%, avg=7802.50, stdev=366.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.67%, ctx=33, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4276KiB/s (4378kB/s), 1069KiB/s-3836KiB/s (1095kB/s-3928kB/s), io=16.0MiB (16.8MB), run=3203-3832msec WRITE: bw=8551KiB/s (8756kB/s), 2138KiB/s-4078KiB/s (2189kB/s-4176kB/s), io=32.0MiB (33.6MB), run=3013-3832msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186126: Fri Jan 16 03:53:20 2026 read: IOPS=1, BW=4823KiB/s (4938kB/s)(12.0MiB/2548msec) clat (msec): min=739, max=902, avg=822.99, stdev=81.53 lat (msec): min=739, max=902, avg=822.99, stdev=81.53 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 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= 8062, max= 8110, per=100.00%, avg=8086.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=10.40%, ctx=283, 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=186127: Fri Jan 16 03:53:20 2026 read: IOPS=0, BW=1648KiB/s (1687kB/s)(4096KiB/2486msec) clat (nsec): min=891758k, max=891758k, avg=891757812.00, stdev= 0.00 lat (nsec): min=891760k, max=891760k, avg=891760425.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3295KiB/s (3374kB/s)(8192KiB/2486msec); 0 zone resets clat (msec): min=441, max=887, avg=664.49, stdev=315.59 lat (msec): min=441, max=888, avg=664.87, stdev=315.68 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 885], | 70.00th=[ 885], 80.00th=[ 885], 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= 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 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=6.24%, ctx=133, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186128: Fri Jan 16 03:53:20 2026 write: IOPS=0, BW=2998KiB/s (3070kB/s)(12.0MiB/4099msec); 0 zone resets clat (msec): min=259, max=3430, avg=1350.36, stdev=1802.37 lat (msec): min=261, max=3433, avg=1352.48, stdev=1803.07 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 3440], 80.00th=[ 3440], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 7831, max= 8143, per=99.91%, avg=7987.00, stdev=220.62, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.10%, sys=3.93%, ctx=41, 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=186129: Fri Jan 16 03:53:20 2026 write: IOPS=0, BW=3536KiB/s (3621kB/s)(12.0MiB/3475msec); 0 zone resets clat (msec): min=287, max=2686, avg=1103.40, stdev=1370.85 lat (msec): min=287, max=2686, avg=1103.93, stdev=1370.77 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 6585, max= 8062, per=91.61%, avg=7323.50, stdev=1044.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.09%, sys=3.51%, ctx=50, 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=6430KiB/s (6584kB/s), 1648KiB/s-4823KiB/s (1687kB/s-4938kB/s), io=16.0MiB (16.8MB), run=2486-2548msec WRITE: bw=7994KiB/s (8186kB/s), 2998KiB/s-3536KiB/s (3070kB/s-3621kB/s), io=32.0MiB (33.6MB), run=2486-4099msec