== sanity test 398b: DIO and buffer IO race ============== 21:47:23 (1778291243) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.58245 s, 19.5 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=183041: Fri May 8 21:48:22 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(5992KiB/48799msec) clat (usec): min=46, max=604669, avg=17435.89, stdev=17865.78 lat (usec): min=47, max=604670, avg=17436.54, stdev=17865.79 clat percentiles (usec): | 1.00th=[ 103], 5.00th=[ 6783], 10.00th=[ 8160], 20.00th=[ 9765], | 30.00th=[ 11469], 40.00th=[ 13566], 50.00th=[ 15533], 60.00th=[ 17695], | 70.00th=[ 20055], 80.00th=[ 22938], 90.00th=[ 27657], 95.00th=[ 32900], | 99.00th=[ 50070], 99.50th=[ 60556], 99.90th=[ 94897], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 208, per=24.96%, avg=122.54, stdev=35.31, samples=97 iops : min= 1, max= 52, avg=30.21, stdev= 8.94, samples=97 write: IOPS=32, BW=129KiB/s (132kB/s)(6296KiB/48799msec); 0 zone resets clat (usec): min=711, max=73919, avg=14283.43, stdev=11229.46 lat (usec): min=712, max=73920, avg=14284.21, stdev=11229.50 clat percentiles (usec): | 1.00th=[ 971], 5.00th=[ 2073], 10.00th=[ 2737], 20.00th=[ 3720], | 30.00th=[ 6587], 40.00th=[ 9634], 50.00th=[11994], 60.00th=[14615], | 70.00th=[18220], 80.00th=[22152], 90.00th=[29492], 95.00th=[35390], | 99.00th=[52167], 99.50th=[57934], 99.90th=[69731], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 55, max= 224, per=25.29%, avg=129.97, stdev=35.91, samples=96 iops : min= 13, max= 56, avg=32.07, stdev= 8.99, samples=96 lat (usec) : 50=0.07%, 100=0.36%, 250=0.59%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.52% lat (msec) : 2=1.89%, 4=8.56%, 10=20.02%, 20=40.62%, 50=26.24% lat (msec) : 100=1.04%, 750=0.03% cpu : usr=0.10%, sys=22.88%, ctx=9227, 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=183042: Fri May 8 21:48:22 2026 read: IOPS=30, BW=122KiB/s (124kB/s)(5940KiB/48869msec) clat (usec): min=30, max=84992, avg=17323.75, stdev=9489.92 lat (usec): min=31, max=84993, avg=17324.29, stdev=9489.94 clat percentiles (usec): | 1.00th=[ 92], 5.00th=[ 6915], 10.00th=[ 8356], 20.00th=[10290], | 30.00th=[11863], 40.00th=[13435], 50.00th=[15664], 60.00th=[17957], | 70.00th=[20055], 80.00th=[23200], 90.00th=[28967], 95.00th=[33424], | 99.00th=[52167], 99.50th=[60031], 99.90th=[82314], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 7, max= 198, per=24.72%, avg=121.38, stdev=34.32, samples=97 iops : min= 1, max= 49, avg=29.92, stdev= 8.66, samples=97 write: IOPS=32, BW=130KiB/s (133kB/s)(6348KiB/48869msec); 0 zone resets clat (usec): min=728, max=605054, avg=14461.60, stdev=18354.31 lat (usec): min=729, max=605054, avg=14462.55, stdev=18354.19 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2147], 10.00th=[ 2704], 20.00th=[ 3687], | 30.00th=[ 6456], 40.00th=[ 9372], 50.00th=[ 11863], 60.00th=[ 14746], | 70.00th=[ 17695], 80.00th=[ 22414], 90.00th=[ 28967], 95.00th=[ 34866], | 99.00th=[ 50070], 99.50th=[ 53216], 99.90th=[ 65799], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 71, max= 248, per=25.43%, avg=130.70, stdev=35.79, samples=96 iops : min= 17, max= 62, avg=32.26, stdev= 9.05, samples=96 lat (usec) : 50=0.16%, 100=0.42%, 250=0.62%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.26% lat (msec) : 2=1.82%, 4=9.24%, 10=18.46%, 20=41.31%, 50=26.66% lat (msec) : 100=0.94%, 750=0.03% cpu : usr=0.12%, sys=23.17%, ctx=9110, 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=183043: Fri May 8 21:48:22 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(6028KiB/47605msec) clat (usec): min=47, max=600256, avg=17407.87, stdev=17591.81 lat (usec): min=47, max=600257, avg=17412.36, stdev=17595.24 clat percentiles (usec): | 1.00th=[ 89], 5.00th=[ 6718], 10.00th=[ 8225], 20.00th=[ 9765], | 30.00th=[ 11338], 40.00th=[ 13173], 50.00th=[ 15401], 60.00th=[ 17433], | 70.00th=[ 20055], 80.00th=[ 23462], 90.00th=[ 28443], 95.00th=[ 33817], | 99.00th=[ 47973], 99.50th=[ 53216], 99.90th=[ 77071], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 192, per=25.70%, avg=126.18, stdev=29.83, samples=94 iops : min= 1, max= 48, avg=31.12, stdev= 7.52, samples=94 write: IOPS=32, BW=131KiB/s (135kB/s)(6260KiB/47605msec); 0 zone resets clat (usec): min=771, max=63157, avg=13524.16, stdev=10455.46 lat (usec): min=771, max=63157, avg=13525.05, stdev=10455.50 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 2311], 10.00th=[ 2769], 20.00th=[ 3589], | 30.00th=[ 5800], 40.00th=[ 8848], 50.00th=[11207], 60.00th=[13960], | 70.00th=[16909], 80.00th=[21365], 90.00th=[28181], 95.00th=[34341], | 99.00th=[46924], 99.50th=[49021], 99.90th=[55837], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 21, max= 232, per=25.42%, avg=130.68, stdev=35.60, samples=94 iops : min= 5, max= 58, avg=32.24, stdev= 8.92, samples=94 lat (usec) : 50=0.03%, 100=0.72%, 250=0.59%, 750=0.03%, 1000=0.20% lat (msec) : 2=1.66%, 4=9.57%, 10=20.25%, 20=40.04%, 50=26.30% lat (msec) : 100=0.59%, 750=0.03% cpu : usr=0.12%, sys=23.27%, ctx=9149, 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=183045: Fri May 8 21:48:22 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(6052KiB/48463msec) clat (usec): min=76, max=78725, avg=17377.69, stdev=9289.27 lat (usec): min=76, max=78725, avg=17378.36, stdev=9289.28 clat percentiles (usec): | 1.00th=[ 100], 5.00th=[ 6652], 10.00th=[ 7963], 20.00th=[10028], | 30.00th=[11863], 40.00th=[13960], 50.00th=[16057], 60.00th=[18220], | 70.00th=[20579], 80.00th=[23200], 90.00th=[28443], 95.00th=[34866], | 99.00th=[48497], 99.50th=[56886], 99.90th=[67634], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 31, max= 192, per=25.60%, avg=125.72, stdev=29.35, samples=95 iops : min= 7, max= 48, avg=31.00, stdev= 7.36, samples=95 write: IOPS=32, BW=129KiB/s (132kB/s)(6236KiB/48463msec); 0 zone resets clat (usec): min=726, max=649078, avg=14086.78, stdev=19345.09 lat (usec): min=726, max=649079, avg=14088.06, stdev=19344.99 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 2073], 10.00th=[ 2638], 20.00th=[ 3458], | 30.00th=[ 5604], 40.00th=[ 8848], 50.00th=[ 11338], 60.00th=[ 13960], | 70.00th=[ 17695], 80.00th=[ 22152], 90.00th=[ 29230], 95.00th=[ 34341], | 99.00th=[ 46400], 99.50th=[ 54264], 99.90th=[ 65274], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 31, max= 200, per=25.23%, avg=129.67, stdev=34.10, samples=95 iops : min= 7, max= 50, avg=31.99, stdev= 8.66, samples=95 lat (usec) : 100=0.52%, 250=0.65%, 500=0.03%, 750=0.13%, 1000=0.10% lat (msec) : 2=2.08%, 4=9.96%, 10=18.98%, 20=39.45%, 50=27.31% lat (msec) : 100=0.75%, 750=0.03% cpu : usr=0.10%, sys=23.17%, ctx=9090, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=491KiB/s (503kB/s), 122KiB/s-127KiB/s (124kB/s-130kB/s), io=23.4MiB (24.6MB), run=47605-48869msec WRITE: bw=514KiB/s (527kB/s), 129KiB/s-131KiB/s (132kB/s-135kB/s), io=24.6MiB (25.7MB), run=47605-48869msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183044: Fri May 8 21:48:29 2026 read: IOPS=26, BW=107KiB/s (110kB/s)(5992KiB/55913msec) clat (msec): min=2, max=612, avg=15.20, stdev=19.31 lat (msec): min=2, max=612, avg=15.20, stdev=19.31 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 32], 95.00th=[ 39], | 99.00th=[ 55], 99.50th=[ 60], 99.90th=[ 80], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 31, max= 360, per=25.09%, avg=107.65, stdev=74.48, samples=110 iops : min= 7, max= 90, avg=26.59, stdev=18.72, samples=110 write: IOPS=28, BW=113KiB/s (115kB/s)(6296KiB/55913msec); 0 zone resets clat (msec): min=3, max=110, avg=20.95, stdev=14.69 lat (msec): min=3, max=110, avg=20.95, stdev=14.69 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 32], 90.00th=[ 41], 95.00th=[ 49], | 99.00th=[ 73], 99.50th=[ 82], 99.90th=[ 109], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 32, max= 400, per=25.19%, avg=113.09, stdev=75.73, samples=110 iops : min= 8, max= 100, avg=27.95, stdev=19.02, samples=110 lat (msec) : 4=1.92%, 10=35.19%, 20=29.39%, 50=30.31%, 100=3.09% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.08%, sys=11.90%, ctx=5639, 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=183046: Fri May 8 21:48:29 2026 read: IOPS=26, BW=106KiB/s (109kB/s)(5940KiB/55932msec) clat (msec): min=2, max=641, avg=15.88, stdev=20.43 lat (msec): min=2, max=641, avg=15.88, stdev=20.43 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 24], 90.00th=[ 35], 95.00th=[ 43], | 99.00th=[ 57], 99.50th=[ 65], 99.90th=[ 81], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 16, max= 384, per=24.85%, avg=106.62, stdev=75.31, samples=110 iops : min= 4, max= 96, avg=26.34, stdev=18.92, samples=110 write: IOPS=28, BW=113KiB/s (116kB/s)(6348KiB/55932msec); 0 zone resets clat (msec): min=4, max=112, avg=20.28, stdev=14.43 lat (msec): min=4, max=112, avg=20.28, stdev=14.43 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 31], 90.00th=[ 41], 95.00th=[ 48], | 99.00th=[ 69], 99.50th=[ 78], 99.90th=[ 96], 99.95th=[ 113], | 99.99th=[ 113] bw ( KiB/s): min= 40, max= 384, per=25.30%, avg=113.60, stdev=73.94, samples=110 iops : min= 10, max= 96, avg=28.08, stdev=18.59, samples=110 lat (msec) : 4=1.92%, 10=35.03%, 20=29.79%, 50=29.85%, 100=3.35% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.10%, sys=11.78%, ctx=5728, 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=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=183047: Fri May 8 21:48:29 2026 read: IOPS=27, BW=108KiB/s (111kB/s)(6028KiB/55558msec) clat (usec): min=2837, max=74439, avg=15465.72, stdev=12225.14 lat (usec): min=2837, max=74440, avg=15466.39, stdev=12225.21 clat percentiles (usec): | 1.00th=[ 3589], 5.00th=[ 4113], 10.00th=[ 4555], 20.00th=[ 5342], | 30.00th=[ 6915], 40.00th=[ 8979], 50.00th=[11338], 60.00th=[13960], | 70.00th=[18220], 80.00th=[24773], 90.00th=[33817], 95.00th=[40109], | 99.00th=[55837], 99.50th=[64226], 99.90th=[69731], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 39, max= 392, per=25.44%, avg=109.14, stdev=75.93, samples=109 iops : min= 9, max= 98, avg=26.96, stdev=19.09, samples=109 write: IOPS=28, BW=113KiB/s (115kB/s)(6260KiB/55558msec); 0 zone resets clat (msec): min=4, max=649, avg=20.50, stdev=20.97 lat (msec): min=4, max=649, avg=20.50, stdev=20.97 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 31], 90.00th=[ 39], 95.00th=[ 46], | 99.00th=[ 65], 99.50th=[ 72], 99.90th=[ 115], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 15, max= 376, per=25.18%, avg=113.04, stdev=75.56, samples=109 iops : min= 3, max= 94, avg=27.94, stdev=18.99, samples=109 lat (msec) : 4=1.76%, 10=34.90%, 20=29.33%, 50=31.38%, 100=2.54% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.10%, sys=12.04%, ctx=5760, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183048: Fri May 8 21:48:29 2026 read: IOPS=27, BW=108KiB/s (111kB/s)(6052KiB/55949msec) clat (usec): min=2792, max=83577, avg=15252.88, stdev=12398.79 lat (usec): min=2793, max=83577, avg=15253.45, stdev=12398.83 clat percentiles (usec): | 1.00th=[ 3294], 5.00th=[ 4015], 10.00th=[ 4490], 20.00th=[ 5276], | 30.00th=[ 6783], 40.00th=[ 8979], 50.00th=[10945], 60.00th=[13566], | 70.00th=[17433], 80.00th=[23462], 90.00th=[32900], 95.00th=[40109], | 99.00th=[60556], 99.50th=[66847], 99.90th=[76022], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 23, max= 368, per=25.19%, avg=108.07, stdev=75.63, samples=110 iops : min= 5, max= 92, avg=26.70, stdev=19.00, samples=110 write: IOPS=27, BW=111KiB/s (114kB/s)(6236KiB/55949msec); 0 zone resets clat (msec): min=4, max=641, avg=20.97, stdev=21.27 lat (msec): min=4, max=641, avg=20.97, stdev=21.28 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 32], 90.00th=[ 40], 95.00th=[ 48], | 99.00th=[ 69], 99.50th=[ 81], 99.90th=[ 112], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 39, max= 384, per=24.86%, avg=111.64, stdev=75.66, samples=110 iops : min= 9, max= 96, avg=27.59, stdev=19.02, samples=110 lat (msec) : 4=2.28%, 10=35.22%, 20=28.06%, 50=31.32%, 100=3.06% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.08%, sys=11.80%, ctx=5741, 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=429KiB/s (439kB/s), 106KiB/s-108KiB/s (109kB/s-111kB/s), io=23.4MiB (24.6MB), run=55558-55949msec WRITE: bw=449KiB/s (460kB/s), 111KiB/s-113KiB/s (114kB/s-116kB/s), io=24.6MiB (25.7MB), run=55558-55949msec 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=183073: Fri May 8 21:48:48 2026 read: IOPS=28, BW=458KiB/s (469kB/s)(5920KiB/12933msec) clat (usec): min=72, max=65919, avg=18011.85, stdev=9505.29 lat (usec): min=74, max=65920, avg=18012.53, stdev=9505.33 clat percentiles (usec): | 1.00th=[ 87], 5.00th=[ 6980], 10.00th=[ 8848], 20.00th=[10814], | 30.00th=[12387], 40.00th=[14353], 50.00th=[16581], 60.00th=[18744], | 70.00th=[21627], 80.00th=[24249], 90.00th=[30802], 95.00th=[34866], | 99.00th=[46924], 99.50th=[60031], 99.90th=[65799], 99.95th=[65799], | 99.99th=[65799] bw ( KiB/s): min= 287, max= 634, per=24.95%, avg=448.16, stdev=97.58, samples=25 iops : min= 17, max= 39, avg=27.60, stdev= 6.06, samples=25 write: IOPS=30, BW=492KiB/s (504kB/s)(6368KiB/12933msec); 0 zone resets clat (usec): min=1708, max=60255, avg=15490.92, stdev=10714.98 lat (usec): min=1710, max=60256, avg=15492.64, stdev=10714.71 clat percentiles (usec): | 1.00th=[ 2147], 5.00th=[ 3556], 10.00th=[ 4228], 20.00th=[ 5342], | 30.00th=[ 8029], 40.00th=[ 9896], 50.00th=[12649], 60.00th=[15664], | 70.00th=[19792], 80.00th=[24511], 90.00th=[31327], 95.00th=[35390], | 99.00th=[45876], 99.50th=[47973], 99.90th=[60031], 99.95th=[60031], | 99.99th=[60031] bw ( KiB/s): min= 224, max= 672, per=26.02%, avg=491.60, stdev=98.39, samples=25 iops : min= 14, max= 42, avg=30.32, stdev= 6.07, samples=25 lat (usec) : 100=0.91%, 250=1.04% lat (msec) : 2=0.26%, 4=3.65%, 10=23.05%, 20=39.06%, 50=31.51% lat (msec) : 100=0.52% cpu : usr=0.12%, sys=24.82%, ctx=2687, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183075: Fri May 8 21:48:48 2026 read: IOPS=28, BW=451KiB/s (462kB/s)(5744KiB/12732msec) clat (usec): min=38, max=78544, avg=17760.57, stdev=9189.37 lat (usec): min=39, max=78544, avg=17761.27, stdev=9189.43 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 7046], 10.00th=[ 9634], 20.00th=[11731], | 30.00th=[13173], 40.00th=[14615], 50.00th=[16581], 60.00th=[18482], | 70.00th=[20841], 80.00th=[23462], 90.00th=[27657], 95.00th=[31851], | 99.00th=[47973], 99.50th=[70779], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 255, max= 672, per=25.10%, avg=450.76, stdev=111.19, samples=25 iops : min= 15, max= 42, avg=27.76, stdev= 7.02, samples=25 write: IOPS=32, BW=514KiB/s (526kB/s)(6544KiB/12732msec); 0 zone resets clat (usec): min=1628, max=56935, avg=15422.10, stdev=10925.95 lat (usec): min=1629, max=56937, avg=15423.82, stdev=10926.03 clat percentiles (usec): | 1.00th=[ 2278], 5.00th=[ 3490], 10.00th=[ 4178], 20.00th=[ 5604], | 30.00th=[ 7767], 40.00th=[10028], 50.00th=[12649], 60.00th=[15139], | 70.00th=[18744], 80.00th=[24511], 90.00th=[32113], 95.00th=[37487], | 99.00th=[46924], 99.50th=[50070], 99.90th=[56886], 99.95th=[56886], | 99.99th=[56886] bw ( KiB/s): min= 352, max= 699, per=27.20%, avg=513.80, stdev=88.12, samples=25 iops : min= 22, max= 43, avg=31.68, stdev= 5.42, samples=25 lat (usec) : 50=0.13%, 100=1.17%, 250=0.91% lat (msec) : 2=0.39%, 4=3.91%, 10=20.44%, 20=42.06%, 50=30.34% lat (msec) : 100=0.65% cpu : usr=0.13%, sys=24.92%, ctx=2708, 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=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=183077: Fri May 8 21:48:48 2026 read: IOPS=30, BW=486KiB/s (497kB/s)(6256KiB/12877msec) clat (usec): min=33, max=48446, avg=17347.55, stdev=7990.24 lat (usec): min=33, max=48447, avg=17348.36, stdev=7990.21 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 7570], 10.00th=[ 9241], 20.00th=[11338], | 30.00th=[13042], 40.00th=[14353], 50.00th=[16450], 60.00th=[18482], | 70.00th=[20579], 80.00th=[23200], 90.00th=[26608], 95.00th=[33162], | 99.00th=[42730], 99.50th=[46924], 99.90th=[48497], 99.95th=[48497], | 99.99th=[48497] bw ( KiB/s): min= 287, max= 640, per=27.10%, avg=486.68, stdev=105.14, samples=25 iops : min= 17, max= 40, avg=30.00, stdev= 6.77, samples=25 write: IOPS=29, BW=468KiB/s (480kB/s)(6032KiB/12877msec); 0 zone resets clat (usec): min=1357, max=52516, avg=15859.38, stdev=10594.52 lat (usec): min=1359, max=52518, avg=15862.48, stdev=10595.48 clat percentiles (usec): | 1.00th=[ 2114], 5.00th=[ 3752], 10.00th=[ 4359], 20.00th=[ 5866], | 30.00th=[ 8979], 40.00th=[10945], 50.00th=[13698], 60.00th=[16712], | 70.00th=[20055], 80.00th=[23725], 90.00th=[31327], 95.00th=[36963], | 99.00th=[48497], 99.50th=[50594], 99.90th=[52691], 99.95th=[52691], | 99.99th=[52691] bw ( KiB/s): min= 224, max= 670, per=24.40%, avg=461.00, stdev=111.33, samples=25 iops : min= 14, max= 41, avg=28.40, stdev= 6.81, samples=25 lat (usec) : 50=0.26%, 100=0.78%, 250=0.91%, 750=0.13% lat (msec) : 2=0.26%, 4=3.65%, 10=17.84%, 20=45.18%, 50=30.73% lat (msec) : 100=0.26% cpu : usr=0.06%, sys=24.86%, ctx=2735, 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=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=183078: Fri May 8 21:48:48 2026 read: IOPS=28, BW=452KiB/s (463kB/s)(6032KiB/13336msec) clat (usec): min=39, max=60088, avg=18154.67, stdev=9162.87 lat (usec): min=40, max=60089, avg=18155.36, stdev=9162.86 clat percentiles (usec): | 1.00th=[ 74], 5.00th=[ 6128], 10.00th=[ 8848], 20.00th=[11338], | 30.00th=[13173], 40.00th=[15139], 50.00th=[16909], 60.00th=[19006], | 70.00th=[21103], 80.00th=[23987], 90.00th=[29492], 95.00th=[35390], | 99.00th=[47449], 99.50th=[56886], 99.90th=[60031], 99.95th=[60031], | 99.99th=[60031] bw ( KiB/s): min= 223, max= 574, per=24.83%, avg=445.92, stdev=94.58, samples=26 iops : min= 13, max= 35, avg=27.42, stdev= 5.85, samples=26 write: IOPS=29, BW=469KiB/s (480kB/s)(6256KiB/13336msec); 0 zone resets clat (usec): min=2096, max=51023, avg=16287.34, stdev=10670.26 lat (usec): min=2097, max=51024, avg=16288.89, stdev=10670.22 clat percentiles (usec): | 1.00th=[ 2376], 5.00th=[ 3851], 10.00th=[ 4490], 20.00th=[ 6390], | 30.00th=[ 9241], 40.00th=[11600], 50.00th=[13698], 60.00th=[16188], | 70.00th=[20055], 80.00th=[24773], 90.00th=[31065], 95.00th=[36963], | 99.00th=[49021], 99.50th=[49546], 99.90th=[51119], 99.95th=[51119], | 99.99th=[51119] bw ( KiB/s): min= 288, max= 672, per=24.71%, avg=466.85, stdev=99.79, samples=26 iops : min= 18, max= 42, avg=28.73, stdev= 6.32, samples=26 lat (usec) : 50=0.26%, 100=0.78%, 250=1.04% lat (msec) : 2=0.13%, 4=2.99%, 10=18.49%, 20=43.49%, 50=32.29% lat (msec) : 100=0.52% cpu : usr=0.08%, sys=24.24%, ctx=2753, 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=1796KiB/s (1839kB/s), 451KiB/s-486KiB/s (462kB/s-497kB/s), io=23.4MiB (24.5MB), run=12732-13336msec WRITE: bw=1890KiB/s (1935kB/s), 468KiB/s-514KiB/s (480kB/s-526kB/s), io=24.6MiB (25.8MB), run=12732-13336msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183071: Fri May 8 21:48:50 2026 read: IOPS=24, BW=392KiB/s (401kB/s)(5920KiB/15115msec) clat (usec): min=3259, max=77623, avg=16647.35, stdev=13442.20 lat (usec): min=3260, max=77624, avg=16647.98, stdev=13442.20 clat percentiles (usec): | 1.00th=[ 3621], 5.00th=[ 4817], 10.00th=[ 5473], 20.00th=[ 6652], | 30.00th=[ 8291], 40.00th=[ 9765], 50.00th=[12125], 60.00th=[14222], | 70.00th=[17695], 80.00th=[25297], 90.00th=[36963], 95.00th=[47449], | 99.00th=[63177], 99.50th=[67634], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 127, max= 1117, per=24.66%, avg=390.60, stdev=246.75, samples=30 iops : min= 7, max= 69, avg=23.80, stdev=15.54, samples=30 write: IOPS=26, BW=421KiB/s (431kB/s)(6368KiB/15115msec); 0 zone resets clat (usec): min=5268, max=74456, avg=22219.64, stdev=14193.54 lat (usec): min=5269, max=74457, avg=22221.28, stdev=14193.36 clat percentiles (usec): | 1.00th=[ 5997], 5.00th=[ 7242], 10.00th=[ 8094], 20.00th=[ 9896], | 30.00th=[11863], 40.00th=[14484], 50.00th=[17957], 60.00th=[22676], | 70.00th=[27919], 80.00th=[33162], 90.00th=[43779], 95.00th=[50594], | 99.00th=[67634], 99.50th=[73925], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 96, max= 1117, per=25.29%, avg=421.67, stdev=242.08, samples=30 iops : min= 6, max= 69, avg=25.77, stdev=15.15, samples=30 lat (msec) : 4=0.65%, 10=29.95%, 20=33.98%, 50=30.86%, 100=4.56% cpu : usr=0.09%, sys=11.84%, ctx=1521, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183072: Fri May 8 21:48:50 2026 read: IOPS=23, BW=382KiB/s (391kB/s)(5744KiB/15033msec) clat (usec): min=3319, max=68941, avg=16733.83, stdev=12543.50 lat (usec): min=3320, max=68941, avg=16734.46, stdev=12543.54 clat percentiles (usec): | 1.00th=[ 3884], 5.00th=[ 5080], 10.00th=[ 5866], 20.00th=[ 7046], | 30.00th=[ 8586], 40.00th=[10028], 50.00th=[11863], 60.00th=[13829], | 70.00th=[19006], 80.00th=[26346], 90.00th=[36439], 95.00th=[44303], | 99.00th=[53216], 99.50th=[63701], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 159, max= 1024, per=23.16%, avg=366.86, stdev=194.53, samples=29 iops : min= 9, max= 64, avg=22.34, stdev=12.29, samples=29 write: IOPS=27, BW=435KiB/s (446kB/s)(6544KiB/15033msec); 0 zone resets clat (usec): min=5229, max=93025, avg=21851.61, stdev=14322.31 lat (usec): min=5230, max=93026, avg=21853.05, stdev=14322.28 clat percentiles (usec): | 1.00th=[ 6259], 5.00th=[ 7111], 10.00th=[ 8094], 20.00th=[ 9896], | 30.00th=[11994], 40.00th=[13829], 50.00th=[16909], 60.00th=[21890], | 70.00th=[26084], 80.00th=[32637], 90.00th=[42206], 95.00th=[49546], | 99.00th=[65799], 99.50th=[70779], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 159, max= 1085, per=24.62%, avg=410.41, stdev=211.03, samples=29 iops : min= 9, max= 67, avg=25.03, stdev=13.32, samples=29 lat (msec) : 4=0.52%, 10=28.65%, 20=34.38%, 50=32.68%, 100=3.78% cpu : usr=0.13%, sys=12.18%, ctx=1534, 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=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=183074: Fri May 8 21:48:50 2026 read: IOPS=25, BW=416KiB/s (426kB/s)(6256KiB/15051msec) clat (usec): min=3608, max=66814, avg=16851.34, stdev=13161.59 lat (usec): min=3609, max=66814, avg=16852.08, stdev=13161.61 clat percentiles (usec): | 1.00th=[ 4424], 5.00th=[ 5145], 10.00th=[ 5604], 20.00th=[ 6718], | 30.00th=[ 8455], 40.00th=[10159], 50.00th=[12125], 60.00th=[13829], | 70.00th=[17433], 80.00th=[26084], 90.00th=[37487], 95.00th=[46924], | 99.00th=[63177], 99.50th=[63701], 99.90th=[66847], 99.95th=[66847], | 99.99th=[66847] bw ( KiB/s): min= 192, max= 1408, per=25.08%, avg=397.21, stdev=249.77, samples=29 iops : min= 12, max= 88, avg=24.24, stdev=15.70, samples=29 write: IOPS=25, BW=401KiB/s (410kB/s)(6032KiB/15051msec); 0 zone resets clat (usec): min=5553, max=85193, avg=22371.97, stdev=14410.03 lat (usec): min=5555, max=85194, avg=22373.51, stdev=14410.03 clat percentiles (usec): | 1.00th=[ 6063], 5.00th=[ 7177], 10.00th=[ 8225], 20.00th=[10290], | 30.00th=[11863], 40.00th=[14222], 50.00th=[17695], 60.00th=[22676], | 70.00th=[27657], 80.00th=[33817], 90.00th=[41681], 95.00th=[49546], | 99.00th=[73925], 99.50th=[77071], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 160, max= 894, per=22.44%, avg=374.10, stdev=181.02, samples=29 iops : min= 10, max= 55, avg=22.79, stdev=11.41, samples=29 lat (msec) : 4=0.13%, 10=29.17%, 20=34.64%, 50=32.29%, 100=3.78% cpu : usr=0.09%, sys=12.03%, ctx=1547, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183076: Fri May 8 21:48:50 2026 read: IOPS=25, BW=405KiB/s (414kB/s)(6032KiB/14909msec) clat (usec): min=3317, max=64200, avg=16204.30, stdev=12246.24 lat (usec): min=3318, max=64200, avg=16205.00, stdev=12246.22 clat percentiles (usec): | 1.00th=[ 3818], 5.00th=[ 4883], 10.00th=[ 5407], 20.00th=[ 6849], | 30.00th=[ 8291], 40.00th=[10159], 50.00th=[11731], 60.00th=[13960], | 70.00th=[17957], 80.00th=[23987], 90.00th=[34341], 95.00th=[42730], | 99.00th=[61604], 99.50th=[63701], 99.90th=[64226], 99.95th=[64226], | 99.99th=[64226] bw ( KiB/s): min= 128, max= 1088, per=24.54%, avg=388.76, stdev=227.27, samples=29 iops : min= 8, max= 68, avg=23.69, stdev=14.29, samples=29 write: IOPS=26, BW=420KiB/s (430kB/s)(6256KiB/14909msec); 0 zone resets clat (usec): min=5766, max=93078, avg=22306.34, stdev=14658.05 lat (usec): min=5767, max=93079, avg=22307.81, stdev=14658.07 clat percentiles (usec): | 1.00th=[ 6718], 5.00th=[ 7635], 10.00th=[ 8455], 20.00th=[ 9896], | 30.00th=[12911], 40.00th=[14746], 50.00th=[17695], 60.00th=[21103], | 70.00th=[26084], 80.00th=[32900], 90.00th=[41157], 95.00th=[51119], | 99.00th=[76022], 99.50th=[84411], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 159, max= 1120, per=24.30%, avg=405.00, stdev=200.41, samples=29 iops : min= 9, max= 70, avg=24.72, stdev=12.66, samples=29 lat (msec) : 4=0.65%, 10=28.65%, 20=34.64%, 50=32.16%, 100=3.91% cpu : usr=0.11%, sys=12.24%, ctx=1541, 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=1585KiB/s (1623kB/s), 382KiB/s-416KiB/s (391kB/s-426kB/s), io=23.4MiB (24.5MB), run=14909-15115msec WRITE: bw=1667KiB/s (1707kB/s), 401KiB/s-435KiB/s (410kB/s-446kB/s), io=24.6MiB (25.8MB), run=14909-15115msec 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=183086: Fri May 8 21:48:59 2026 read: IOPS=3, BW=3396KiB/s (3477kB/s)(7168KiB/2111msec) clat (usec): min=461, max=318466, avg=112142.23, stdev=106710.32 lat (usec): min=462, max=318466, avg=112143.46, stdev=106710.12 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 611], | 30.00th=[ 98042], 40.00th=[ 98042], 50.00th=[109577], 60.00th=[123208], | 70.00th=[123208], 80.00th=[135267], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 4096, max= 5233, per=80.98%, avg=4664.50, stdev=803.98, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2425KiB/s (2484kB/s)(5120KiB/2111msec); 0 zone resets clat (msec): min=119, max=408, avg=251.36, stdev=126.93 lat (msec): min=119, max=408, avg=251.42, stdev=126.93 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 2048, max= 2048, per=25.39%, avg=2048.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=25.00% cpu : usr=0.00%, sys=43.51%, ctx=880, 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=183087: Fri May 8 21:48:59 2026 read: IOPS=0, BW=576KiB/s (590kB/s)(2048KiB/3555msec) clat (usec): min=555, max=139273, avg=69914.56, stdev=98088.56 lat (usec): min=557, max=139274, avg=69915.98, stdev=98087.70 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[ 553], 40.00th=[ 553], 50.00th=[ 553], 60.00th=[139461], | 70.00th=[139461], 80.00th=[139461], 90.00th=[139461], 95.00th=[139461], | 99.00th=[139461], 99.50th=[139461], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 1762, max= 2048, per=33.07%, avg=1905.00, stdev=202.23, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2880KiB/s (2950kB/s)(10.0MiB/3555msec); 0 zone resets clat (msec): min=107, max=1087, avg=327.88, stdev=295.98 lat (msec): min=107, max=1087, avg=327.94, stdev=295.98 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 169], 50.00th=[ 192], 60.00th=[ 288], | 70.00th=[ 292], 80.00th=[ 372], 90.00th=[ 514], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1906, max= 6144, per=44.00%, avg=3548.50, stdev=1998.81, samples=4 iops : min= 1, max= 6, avg= 3.25, stdev= 2.22, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=35.14%, ctx=234, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183089: Fri May 8 21:48:59 2026 read: IOPS=2, BW=2972KiB/s (3044kB/s)(6144KiB/2067msec) clat (msec): min=93, max=176, avg=128.24, stdev=34.52 lat (msec): min=93, max=176, avg=128.24, stdev=34.52 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 105], 50.00th=[ 105], 60.00th=[ 136], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 176], 95.00th=[ 176], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 4096, max= 4096, per=71.11%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2972KiB/s (3044kB/s)(6144KiB/2067msec); 0 zone resets clat (msec): min=129, max=430, avg=213.19, stdev=113.52 lat (msec): min=129, max=430, avg=213.25, stdev=113.52 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 213], | 70.00th=[ 222], 80.00th=[ 222], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 2048, max= 4096, per=39.62%, avg=3195.33, stdev=1046.04, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=83.33%, 500=8.33% cpu : usr=0.05%, sys=48.31%, ctx=870, 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=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=183090: Fri May 8 21:48:59 2026 read: IOPS=1, BW=1627KiB/s (1666kB/s)(5120KiB/3147msec) clat (usec): min=436, max=1156.2k, avg=305008.91, stdev=478869.88 lat (usec): min=437, max=1156.2k, avg=305009.91, stdev=478869.87 clat percentiles (usec): | 1.00th=[ 437], 5.00th=[ 437], 10.00th=[ 437], | 20.00th=[ 437], 30.00th=[ 107480], 40.00th=[ 107480], | 50.00th=[ 128451], 60.00th=[ 128451], 70.00th=[ 132645], | 80.00th=[ 132645], 90.00th=[1149240], 95.00th=[1149240], | 99.00th=[1149240], 99.50th=[1149240], 99.90th=[1149240], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 4096, max= 4096, per=71.11%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2278KiB/s (2332kB/s)(7168KiB/3147msec); 0 zone resets clat (msec): min=96, max=378, avg=212.53, stdev=98.76 lat (msec): min=96, max=378, avg=212.60, stdev=98.77 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 205], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 275], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 1753, max= 6144, per=43.52%, avg=3510.25, stdev=2041.72, samples=4 iops : min= 1, max= 6, avg= 3.25, stdev= 2.22, samples=4 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=41.74%, ctx=1187, 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=5761KiB/s (5899kB/s), 576KiB/s-3396KiB/s (590kB/s-3477kB/s), io=20.0MiB (20.0MB), run=2067-3555msec WRITE: bw=8065KiB/s (8259kB/s), 2278KiB/s-2972KiB/s (2332kB/s-3044kB/s), io=28.0MiB (29.4MB), run=2067-3555msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183091: Fri May 8 21:48:59 2026 read: IOPS=2, BW=2537KiB/s (2598kB/s)(7168KiB/2825msec) clat (msec): min=63, max=457, avg=194.09, stdev=143.07 lat (msec): min=63, max=457, avg=194.09, stdev=143.07 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 97], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 326], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 2048, max= 5180, per=66.13%, avg=3694.67, stdev=1572.22, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1812KiB/s (1856kB/s)(5120KiB/2825msec); 0 zone resets clat (msec): min=113, max=697, avg=289.47, stdev=235.70 lat (msec): min=113, max=697, avg=289.54, stdev=235.70 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 255], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1726, max= 4096, per=33.54%, avg=2623.33, stdev=1285.49, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=13.17%, ctx=126, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183092: Fri May 8 21:48:59 2026 read: IOPS=0, BW=559KiB/s (572kB/s)(2048KiB/3665msec) clat (msec): min=69, max=344, avg=207.29, stdev=194.41 lat (msec): min=69, max=344, avg=207.29, stdev=194.41 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 70], 40.00th=[ 70], 50.00th=[ 70], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 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= 1765, max= 2048, per=34.12%, avg=1906.50, stdev=200.11, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2793KiB/s (2860kB/s)(10.0MiB/3666msec); 0 zone resets clat (msec): min=66, max=1060, avg=313.19, stdev=304.52 lat (msec): min=66, max=1060, avg=313.27, stdev=304.52 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 182], 60.00th=[ 245], | 70.00th=[ 380], 80.00th=[ 418], 90.00th=[ 498], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 2048, max= 8192, per=46.52%, avg=3638.40, stdev=2663.21, samples=5 iops : min= 2, max= 8, avg= 3.40, stdev= 2.61, samples=5 lat (msec) : 100=25.00%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.03%, sys=14.73%, ctx=120, 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=183093: Fri May 8 21:48:59 2026 read: IOPS=1, BW=1782KiB/s (1825kB/s)(6144KiB/3447msec) clat (msec): min=52, max=350, avg=155.41, stdev=114.97 lat (msec): min=52, max=350, avg=155.41, stdev=114.97 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 81], 50.00th=[ 81], 60.00th=[ 150], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1928, max= 4096, per=48.16%, avg=2690.67, stdev=1218.53, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1782KiB/s (1825kB/s)(6144KiB/3447msec); 0 zone resets clat (msec): min=57, max=1222, avg=399.35, stdev=414.95 lat (msec): min=57, max=1222, avg=399.44, stdev=414.96 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 284], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1744, max= 3856, per=30.99%, avg=2424.00, stdev=965.36, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 100=33.33%, 250=25.00%, 500=33.33%, 2000=8.33% cpu : usr=0.03%, sys=12.10%, ctx=108, 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=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=183094: Fri May 8 21:48:59 2026 read: IOPS=1, BW=1506KiB/s (1542kB/s)(5120KiB/3399msec) clat (msec): min=56, max=542, avg=224.87, stdev=196.60 lat (msec): min=56, max=542, avg=224.88, stdev=196.60 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2048, max= 4096, per=48.88%, avg=2730.67, stdev=1182.41, samples=3 iops : min= 2, max= 4, avg= 2.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2109KiB/s (2159kB/s)(7168KiB/3399msec); 0 zone resets clat (msec): min=177, max=514, avg=308.88, stdev=131.16 lat (msec): min=177, max=514, avg=308.96, stdev=131.15 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 279], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 414], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1753, max= 2048, per=25.12%, avg=1965.00, stdev=129.40, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=17.36%, ctx=537, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5588KiB/s (5722kB/s), 559KiB/s-2537KiB/s (572kB/s-2598kB/s), io=20.0MiB (20.0MB), run=2825-3665msec WRITE: bw=7821KiB/s (8009kB/s), 1782KiB/s-2793KiB/s (1825kB/s-2860kB/s), io=28.0MiB (29.4MB), run=2825-3666msec 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=183104: Fri May 8 21:49:07 2026 read: IOPS=2, BW=9.91MiB/s (10.4MB/s)(12.0MiB/1211msec) clat (msec): min=363, max=427, avg=393.08, stdev=32.47 lat (msec): min=363, max=427, avg=393.08, stdev=32.47 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 5439, max= 5439, per=49.17%, avg=5439.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=48.93%, ctx=2635, 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=183105: Fri May 8 21:49:07 2026 read: IOPS=0, BW=2766KiB/s (2832kB/s)(4096KiB/1481msec) clat (nsec): min=421727k, max=421727k, avg=421726564.00, stdev= 0.00 lat (nsec): min=421729k, max=421729k, avg=421728829.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 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= 8047, max= 8047, per=72.74%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5531KiB/s (5664kB/s)(8192KiB/1481msec); 0 zone resets clat (msec): min=515, max=528, avg=522.23, stdev= 9.09 lat (msec): min=516, max=528, avg=522.53, stdev= 9.14 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 8031, max= 8031, per=41.25%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=19.59%, ctx=875, 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=183106: Fri May 8 21:49:07 2026 write: IOPS=1, BW=7301KiB/s (7476kB/s)(12.0MiB/1683msec); 0 zone resets clat (msec): min=118, max=905, avg=555.06, stdev=400.29 lat (msec): min=119, max=905, avg=555.37, stdev=400.28 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 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= 8192, max= 8192, per=42.08%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.06%, sys=15.34%, ctx=42, 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=183107: Fri May 8 21:49:07 2026 write: IOPS=1, BW=7613KiB/s (7796kB/s)(12.0MiB/1614msec); 0 zone resets clat (msec): min=261, max=956, avg=532.22, stdev=371.67 lat (msec): min=262, max=956, avg=532.50, stdev=371.62 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 380], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min=10835, max=10835, per=55.65%, avg=10835.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.25%, 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=10.8MiB/s (11.3MB/s), 2766KiB/s-9.91MiB/s (2832kB/s-10.4MB/s), io=16.0MiB (16.8MB), run=1211-1481msec WRITE: bw=19.0MiB/s (19.9MB/s), 5531KiB/s-7613KiB/s (5664kB/s-7796kB/s), io=32.0MiB (33.6MB), run=1481-1683msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183100: Fri May 8 21:49:08 2026 read: IOPS=2, BW=8859KiB/s (9072kB/s)(12.0MiB/1387msec) clat (msec): min=239, max=574, avg=448.55, stdev=182.17 lat (msec): min=239, max=574, avg=448.55, stdev=182.17 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 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= 8192, max= 8192, per=69.95%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=17.17%, ctx=63, 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=183101: Fri May 8 21:49:08 2026 read: IOPS=0, BW=2928KiB/s (2998kB/s)(4096KiB/1399msec) clat (nsec): min=149060k, max=149060k, avg=149060182.00, stdev= 0.00 lat (nsec): min=149062k, max=149062k, avg=149062395.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 7713, max= 7713, per=65.86%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5856KiB/s (5996kB/s)(8192KiB/1399msec); 0 zone resets clat (msec): min=564, max=669, avg=617.01, stdev=74.04 lat (msec): min=564, max=669, avg=617.26, stdev=73.96 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 8192, max= 8192, per=45.93%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.07%, sys=15.67%, ctx=81, 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=183102: Fri May 8 21:49:08 2026 write: IOPS=1, BW=6689KiB/s (6850kB/s)(12.0MiB/1837msec); 0 zone resets clat (msec): min=56, max=1486, avg=585.79, stdev=784.06 lat (msec): min=56, max=1487, avg=586.33, stdev=784.25 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 56], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] lat (msec) : 100=33.33%, 250=33.33%, 2000=33.33% cpu : usr=0.11%, sys=11.21%, ctx=51, 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=183103: Fri May 8 21:49:08 2026 write: IOPS=2, BW=8891KiB/s (9105kB/s)(12.0MiB/1382msec); 0 zone resets clat (msec): min=155, max=948, avg=445.13, stdev=437.78 lat (msec): min=155, max=949, avg=445.60, stdev=438.07 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min=15663, max=15663, per=87.81%, avg=15663.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 1000=33.33% cpu : usr=0.07%, sys=17.45%, ctx=53, 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=11.4MiB/s (11.0MB/s), 2928KiB/s-8859KiB/s (2998kB/s-9072kB/s), io=16.0MiB (16.8MB), run=1387-1399msec WRITE: bw=17.4MiB/s (18.3MB/s), 5856KiB/s-8891KiB/s (5996kB/s-9105kB/s), io=32.0MiB (33.6MB), run=1382-1837msec