== sanity test 398b: DIO and buffer IO race ============== 05:42:43 (1787391763) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.91993 s, 8.5 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=145023: Sat Aug 22 05:45:02 2026 read: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5992KiB/118216msec) clat (usec): min=31, max=815695, avg=38976.93, stdev=37188.96 lat (usec): min=31, max=815696, avg=38979.84, stdev=37187.77 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 59], 10.00th=[ 106], 20.00th=[ 18220], | 30.00th=[ 23200], 40.00th=[ 28181], 50.00th=[ 33162], 60.00th=[ 39060], | 70.00th=[ 47449], 80.00th=[ 57934], 90.00th=[ 72877], 95.00th=[ 86508], | 99.00th=[129500], 99.50th=[162530], 99.90th=[583009], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 104, per=25.25%, avg=50.25, stdev=20.42, samples=232 iops : min= 1, max= 26, avg=11.94, stdev= 5.16, samples=232 write: IOPS=13, BW=53.3KiB/s (54.5kB/s)(6296KiB/118216msec); 0 zone resets clat (usec): min=1124, max=369824, avg=37787.36, stdev=38892.57 lat (usec): min=1126, max=369826, avg=37795.44, stdev=38893.23 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1434], 10.00th=[ 2073], 20.00th=[ 4948], | 30.00th=[ 8717], 40.00th=[ 17433], 50.00th=[ 28443], 60.00th=[ 38011], | 70.00th=[ 49546], 80.00th=[ 65274], 90.00th=[ 87557], 95.00th=[111674], | 99.00th=[154141], 99.50th=[191890], 99.90th=[337642], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 151, per=25.65%, avg=53.36, stdev=20.90, samples=230 iops : min= 1, max= 37, avg=12.72, stdev= 5.25, samples=230 lat (usec) : 50=0.42%, 100=4.33%, 250=0.52%, 500=0.13%, 750=0.03% lat (msec) : 2=5.01%, 4=3.91%, 10=8.01%, 20=10.87%, 50=38.70% lat (msec) : 100=23.08%, 250=4.75%, 500=0.16%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.25%, ctx=6613, 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=145024: Sat Aug 22 05:45:02 2026 read: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5940KiB/117243msec) clat (usec): min=32, max=241409, avg=38165.77, stdev=28656.19 lat (usec): min=32, max=241410, avg=38167.11, stdev=28656.14 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 245], 20.00th=[ 18482], | 30.00th=[ 23200], 40.00th=[ 27919], 50.00th=[ 32375], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[137364], 99.50th=[168821], 99.90th=[225444], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 118, per=25.31%, avg=50.36, stdev=21.38, samples=230 iops : min= 1, max= 29, avg=11.95, stdev= 5.37, samples=230 write: IOPS=13, BW=54.1KiB/s (55.4kB/s)(6348KiB/117243msec); 0 zone resets clat (usec): min=1085, max=891765, avg=37913.52, stdev=45361.98 lat (usec): min=1086, max=891767, avg=37915.43, stdev=45362.10 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1401], 10.00th=[ 1975], 20.00th=[ 4359], | 30.00th=[ 7963], 40.00th=[ 16319], 50.00th=[ 26870], 60.00th=[ 36439], | 70.00th=[ 49021], 80.00th=[ 62653], 90.00th=[ 87557], 95.00th=[111674], | 99.00th=[191890], 99.50th=[233833], 99.90th=[295699], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 135, per=25.82%, avg=53.71, stdev=23.08, samples=230 iops : min= 1, max= 33, avg=12.80, stdev= 5.80, samples=230 lat (usec) : 50=0.42%, 100=3.97%, 250=0.46%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.34%, 4=4.49%, 10=7.78%, 20=10.58%, 50=39.45% lat (msec) : 100=21.94%, 250=5.21%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.27%, ctx=6528, 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=145025: Sat Aug 22 05:45:02 2026 read: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6028KiB/120310msec) clat (usec): min=33, max=341974, avg=38304.14, stdev=29656.96 lat (usec): min=33, max=341975, avg=38309.64, stdev=29656.52 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 200], 20.00th=[ 18220], | 30.00th=[ 22676], 40.00th=[ 27395], 50.00th=[ 31851], 60.00th=[ 38011], | 70.00th=[ 46400], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[132645], 99.50th=[162530], 99.90th=[252707], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 128, per=24.91%, avg=49.58, stdev=23.08, samples=236 iops : min= 1, max= 32, avg=11.77, stdev= 5.83, samples=236 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(6260KiB/120310msec); 0 zone resets clat (usec): min=1117, max=813896, avg=39780.87, stdev=44893.52 lat (usec): min=1118, max=813897, avg=39783.17, stdev=44893.30 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 2147], 20.00th=[ 4948], | 30.00th=[ 9765], 40.00th=[ 19530], 50.00th=[ 29492], 60.00th=[ 40109], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[160433], 99.50th=[212861], 99.90th=[480248], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 119, per=24.77%, avg=51.53, stdev=21.96, samples=236 iops : min= 1, max= 29, avg=12.26, stdev= 5.52, samples=236 lat (usec) : 50=0.85%, 100=3.81%, 250=0.29%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.69%, 4=3.97%, 10=7.23%, 20=11.00%, 50=39.13% lat (msec) : 100=23.73%, 250=4.92%, 500=0.20%, 1000=0.03% cpu : usr=0.07%, sys=5.47%, ctx=6740, 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=145026: Sat Aug 22 05:45:02 2026 read: IOPS=12, BW=51.6KiB/s (52.9kB/s)(6052KiB/117212msec) clat (usec): min=35, max=261803, avg=37035.87, stdev=27528.88 lat (usec): min=35, max=261805, avg=37037.58, stdev=27529.44 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 297], 20.00th=[ 17433], | 30.00th=[ 22676], 40.00th=[ 26870], 50.00th=[ 31851], 60.00th=[ 38011], | 70.00th=[ 45351], 80.00th=[ 55313], 90.00th=[ 70779], 95.00th=[ 85459], | 99.00th=[116917], 99.50th=[158335], 99.90th=[227541], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 7, max= 119, per=26.25%, avg=52.24, stdev=21.40, samples=226 iops : min= 1, max= 29, avg=12.43, stdev= 5.39, samples=226 write: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6236KiB/117212msec); 0 zone resets clat (usec): min=1197, max=1132.0k, avg=38983.00, stdev=47802.76 lat (usec): min=1198, max=1132.0k, avg=38987.84, stdev=47802.84 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1401], 10.00th=[ 2180], | 20.00th=[ 4883], 30.00th=[ 8848], 40.00th=[ 19268], | 50.00th=[ 28705], 60.00th=[ 40109], 70.00th=[ 50070], | 80.00th=[ 65274], 90.00th=[ 87557], 95.00th=[ 110625], | 99.00th=[ 162530], 99.50th=[ 198181], 99.90th=[ 375391], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 135, per=25.61%, avg=53.26, stdev=21.77, samples=228 iops : min= 1, max= 33, avg=12.68, stdev= 5.48, samples=228 lat (usec) : 50=0.55%, 100=3.97%, 250=0.33%, 500=0.16%, 750=0.07% lat (msec) : 2=4.88%, 4=4.07%, 10=7.45%, 20=11.56%, 50=39.71% lat (msec) : 100=22.53%, 250=4.52%, 500=0.16%, 2000=0.03% cpu : usr=0.07%, sys=5.31%, ctx=6552, 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=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=200KiB/s (204kB/s), 50.1KiB/s-51.6KiB/s (51.3kB/s-52.9kB/s), io=23.4MiB (24.6MB), run=117212-120310msec WRITE: bw=209KiB/s (214kB/s), 52.0KiB/s-54.1KiB/s (53.3kB/s-55.4kB/s), io=24.6MiB (25.7MB), run=117212-120310msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145019: Sat Aug 22 05:47:17 2026 read: IOPS=5, BW=23.4KiB/s (24.0kB/s)(5992KiB/255535msec) clat (msec): min=5, max=870, avg=33.84, stdev=40.52 lat (msec): min=5, max=870, avg=33.86, stdev=40.52 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 69], 95.00th=[ 97], | 99.00th=[ 190], 99.50th=[ 218], 99.90th=[ 384], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 87, per=28.27%, avg=26.29, stdev=16.85, samples=441 iops : min= 1, max= 21, avg= 5.93, stdev= 4.24, samples=441 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6296KiB/255535msec); 0 zone resets clat (msec): min=31, max=597, avg=129.88, stdev=55.16 lat (msec): min=31, max=597, avg=129.89, stdev=55.16 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 148], 80.00th=[ 167], 90.00th=[ 203], 95.00th=[ 230], | 99.00th=[ 296], 99.50th=[ 359], 99.90th=[ 472], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 56, per=24.77%, avg=24.27, stdev= 9.88, samples=500 iops : min= 1, max= 14, avg= 5.42, stdev= 2.52, samples=500 lat (msec) : 10=3.32%, 20=18.82%, 50=18.82%, 100=23.11%, 250=34.15% lat (msec) : 500=1.73%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.32%, ctx=5172, 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=145020: Sat Aug 22 05:47:17 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(5940KiB/255671msec) clat (msec): min=5, max=952, avg=32.80, stdev=39.22 lat (msec): min=5, max=952, avg=32.80, stdev=39.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 92], | 99.00th=[ 169], 99.50th=[ 213], 99.90th=[ 284], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 95, per=27.39%, avg=25.48, stdev=16.64, samples=450 iops : min= 1, max= 23, avg= 5.73, stdev= 4.19, samples=450 write: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6348KiB/255671msec); 0 zone resets clat (msec): min=34, max=634, avg=130.15, stdev=56.82 lat (msec): min=34, max=634, avg=130.16, stdev=56.82 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 148], 80.00th=[ 169], 90.00th=[ 203], 95.00th=[ 234], | 99.00th=[ 330], 99.50th=[ 363], 99.90th=[ 477], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 48, per=24.96%, avg=24.46, stdev=10.05, samples=500 iops : min= 1, max= 12, avg= 5.47, stdev= 2.56, samples=500 lat (msec) : 10=4.10%, 20=19.01%, 50=17.09%, 100=23.76%, 250=34.18% lat (msec) : 500=1.79%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5205, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145021: Sat Aug 22 05:47:17 2026 read: IOPS=5, BW=23.7KiB/s (24.3kB/s)(6028KiB/254347msec) clat (msec): min=6, max=383, avg=33.44, stdev=32.43 lat (msec): min=6, max=383, avg=33.44, stdev=32.43 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 75], 95.00th=[ 93], | 99.00th=[ 153], 99.50th=[ 201], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 103, per=27.07%, avg=25.18, stdev=16.78, samples=463 iops : min= 1, max= 25, avg= 5.65, stdev= 4.21, samples=463 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6260KiB/254347msec); 0 zone resets clat (msec): min=36, max=1107, avg=130.06, stdev=63.37 lat (msec): min=36, max=1107, avg=130.06, stdev=63.37 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 106], 50.00th=[ 116], 60.00th=[ 130], | 70.00th=[ 146], 80.00th=[ 167], 90.00th=[ 201], 95.00th=[ 239], | 99.00th=[ 326], 99.50th=[ 380], 99.90th=[ 634], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 55, per=24.81%, avg=24.31, stdev=10.40, samples=497 iops : min= 1, max= 13, avg= 5.43, stdev= 2.65, samples=497 lat (msec) : 10=3.68%, 20=18.03%, 50=18.85%, 100=24.12%, 250=33.14% lat (msec) : 500=2.08%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.32%, ctx=5040, 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=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=145022: Sat Aug 22 05:47:17 2026 read: IOPS=5, BW=23.7KiB/s (24.3kB/s)(6052KiB/255422msec) clat (msec): min=5, max=591, avg=32.98, stdev=33.98 lat (msec): min=5, max=591, avg=32.98, stdev=33.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 69], 95.00th=[ 95], | 99.00th=[ 159], 99.50th=[ 190], 99.90th=[ 351], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 103, per=28.30%, avg=26.32, stdev=17.57, samples=445 iops : min= 1, max= 25, avg= 5.94, stdev= 4.43, samples=445 write: IOPS=6, BW=24.4KiB/s (25.0kB/s)(6236KiB/255422msec); 0 zone resets clat (msec): min=38, max=1117, avg=131.58, stdev=60.17 lat (msec): min=38, max=1117, avg=131.58, stdev=60.17 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 97], 40.00th=[ 108], 50.00th=[ 120], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 171], 90.00th=[ 205], 95.00th=[ 234], | 99.00th=[ 309], 99.50th=[ 342], 99.90th=[ 514], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 55, per=24.56%, avg=24.07, stdev= 9.75, samples=500 iops : min= 1, max= 13, avg= 5.37, stdev= 2.48, samples=500 lat (msec) : 10=3.61%, 20=18.26%, 50=19.63%, 100=22.33%, 250=34.47% lat (msec) : 500=1.60%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.38%, ctx=5191, 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=93.9KiB/s (96.2kB/s), 23.2KiB/s-23.7KiB/s (23.8kB/s-24.3kB/s), io=23.4MiB (24.6MB), run=254347-255671msec WRITE: bw=98.3KiB/s (101kB/s), 24.4KiB/s-24.8KiB/s (25.0kB/s-25.4kB/s), io=24.6MiB (25.7MB), run=254347-255671msec 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=145076: Sat Aug 22 05:47:55 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(5920KiB/26666msec) clat (usec): min=35, max=193779, avg=36525.07, stdev=31621.95 lat (usec): min=36, max=193781, avg=36531.02, stdev=31616.76 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 141], | 30.00th=[ 18744], 40.00th=[ 26870], 50.00th=[ 33162], 60.00th=[ 39584], | 70.00th=[ 45351], 80.00th=[ 55837], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[152044], 99.50th=[179307], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 62, max= 479, per=25.80%, avg=221.60, stdev=85.79, samples=52 iops : min= 3, max= 29, avg=13.10, stdev= 5.37, samples=52 write: IOPS=14, BW=239KiB/s (245kB/s)(6368KiB/26666msec); 0 zone resets clat (usec): min=1609, max=161835, avg=32503.91, stdev=29770.80 lat (usec): min=1613, max=161836, avg=32506.56, stdev=29770.60 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2147], 10.00th=[ 3228], 20.00th=[ 5276], | 30.00th=[ 8848], 40.00th=[ 14615], 50.00th=[ 21890], 60.00th=[ 33162], | 70.00th=[ 45876], 80.00th=[ 58459], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[121111], 99.50th=[131597], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 94, max= 466, per=26.58%, avg=240.02, stdev=94.30, samples=52 iops : min= 5, max= 29, avg=14.25, stdev= 5.95, samples=52 lat (usec) : 50=1.30%, 100=7.16%, 250=1.82%, 750=0.26%, 1000=0.26% lat (msec) : 2=1.95%, 4=4.69%, 10=9.64%, 20=12.11%, 50=34.51% lat (msec) : 100=22.92%, 250=3.39% cpu : usr=0.06%, sys=6.50%, ctx=1541, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145078: Sat Aug 22 05:47:55 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(5744KiB/27879msec) clat (usec): min=37, max=193952, avg=37157.72, stdev=31104.53 lat (usec): min=37, max=193953, avg=37159.27, stdev=31105.12 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 61], 10.00th=[ 65], 20.00th=[ 130], | 30.00th=[ 20579], 40.00th=[ 27657], 50.00th=[ 34341], 60.00th=[ 42730], | 70.00th=[ 52167], 80.00th=[ 59507], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[152044], 99.50th=[185598], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 29, max= 445, per=25.41%, avg=218.29, stdev=82.09, samples=52 iops : min= 1, max= 27, avg=12.87, stdev= 5.15, samples=52 write: IOPS=14, BW=235KiB/s (240kB/s)(6544KiB/27879msec); 0 zone resets clat (usec): min=1539, max=305794, avg=34701.53, stdev=43510.21 lat (usec): min=1542, max=305796, avg=34705.37, stdev=43510.35 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2040], 10.00th=[ 3163], 20.00th=[ 5407], | 30.00th=[ 8586], 40.00th=[ 12911], 50.00th=[ 20579], 60.00th=[ 30016], | 70.00th=[ 39060], 80.00th=[ 54264], 90.00th=[ 80217], 95.00th=[113771], | 99.00th=[227541], 99.50th=[242222], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 61, max= 574, per=26.47%, avg=239.04, stdev=111.73, samples=54 iops : min= 3, max= 35, avg=14.17, stdev= 7.01, samples=54 lat (usec) : 50=0.65%, 100=7.81%, 250=1.43%, 750=0.13% lat (msec) : 2=2.99%, 4=5.47%, 10=10.68%, 20=10.94%, 50=32.81% lat (msec) : 100=23.05%, 250=3.91%, 500=0.13% cpu : usr=0.08%, sys=6.19%, ctx=1606, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145080: Sat Aug 22 05:47:55 2026 read: IOPS=14, BW=235KiB/s (240kB/s)(6256KiB/26652msec) clat (usec): min=30, max=237399, avg=36932.84, stdev=29387.30 lat (usec): min=30, max=237400, avg=36934.15, stdev=29387.33 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 3621], | 30.00th=[ 22676], 40.00th=[ 29492], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 48497], 80.00th=[ 57410], 90.00th=[ 67634], 95.00th=[ 86508], | 99.00th=[125305], 99.50th=[175113], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 58, max= 509, per=27.60%, avg=237.10, stdev=98.31, samples=52 iops : min= 3, max= 31, avg=14.06, stdev= 6.21, samples=52 write: IOPS=14, BW=226KiB/s (232kB/s)(6032KiB/26652msec); 0 zone resets clat (usec): min=1593, max=197621, avg=31628.69, stdev=34495.07 lat (usec): min=1595, max=197623, avg=31631.82, stdev=34494.91 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2245], 10.00th=[ 2933], 20.00th=[ 4883], | 30.00th=[ 6980], 40.00th=[ 11600], 50.00th=[ 17957], 60.00th=[ 28967], | 70.00th=[ 40109], 80.00th=[ 54789], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[162530], 99.50th=[193987], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 62, max= 475, per=24.89%, avg=224.79, stdev=88.27, samples=52 iops : min= 3, max= 29, avg=13.29, stdev= 5.60, samples=52 lat (usec) : 50=1.56%, 100=6.51%, 250=1.30%, 500=0.13%, 750=0.13% lat (msec) : 2=1.95%, 4=7.16%, 10=9.24%, 20=12.37%, 50=32.94% lat (msec) : 100=23.44%, 250=3.26% cpu : usr=0.11%, sys=6.37%, ctx=1547, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145082: Sat Aug 22 05:47:55 2026 read: IOPS=14, BW=225KiB/s (231kB/s)(6032KiB/26781msec) clat (usec): min=37, max=258653, avg=38881.71, stdev=31588.50 lat (usec): min=38, max=258655, avg=38883.04, stdev=31588.42 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 392], | 30.00th=[ 23462], 40.00th=[ 29754], 50.00th=[ 35914], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 59507], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[141558], 99.50th=[158335], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 62, max= 440, per=26.16%, avg=224.71, stdev=97.30, samples=52 iops : min= 3, max= 27, avg=13.29, stdev= 6.18, samples=52 write: IOPS=14, BW=234KiB/s (239kB/s)(6256KiB/26781msec); 0 zone resets clat (usec): min=1552, max=212434, avg=30848.00, stdev=32774.54 lat (usec): min=1553, max=212437, avg=30855.65, stdev=32777.26 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2147], 10.00th=[ 3163], 20.00th=[ 5276], | 30.00th=[ 8029], 40.00th=[ 12780], 50.00th=[ 20579], 60.00th=[ 28967], | 70.00th=[ 39584], 80.00th=[ 52691], 90.00th=[ 71828], 95.00th=[ 83362], | 99.00th=[181404], 99.50th=[206570], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 62, max= 535, per=25.96%, avg=234.42, stdev=87.24, samples=52 iops : min= 3, max= 33, avg=13.88, stdev= 5.52, samples=52 lat (usec) : 50=0.65%, 100=8.07%, 250=0.91%, 500=0.26%, 750=0.39% lat (msec) : 2=1.69%, 4=5.47%, 10=9.90%, 20=9.77%, 50=36.46% lat (msec) : 100=23.31%, 250=2.99%, 500=0.13% cpu : usr=0.06%, sys=6.41%, ctx=1534, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=859KiB/s (880kB/s), 206KiB/s-235KiB/s (211kB/s-240kB/s), io=23.4MiB (24.5MB), run=26652-27879msec WRITE: bw=904KiB/s (926kB/s), 226KiB/s-239KiB/s (232kB/s-245kB/s), io=24.6MiB (25.8MB), run=26652-27879msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145077: Sat Aug 22 05:48:26 2026 read: IOPS=6, BW=99.5KiB/s (102kB/s)(5920KiB/59468msec) clat (msec): min=6, max=238, avg=34.57, stdev=36.05 lat (msec): min=6, max=238, avg=34.57, stdev=36.05 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 77], 95.00th=[ 112], | 99.00th=[ 201], 99.50th=[ 222], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 286, per=26.27%, avg=105.61, stdev=65.66, samples=109 iops : min= 1, max= 17, avg= 5.86, stdev= 4.16, samples=109 write: IOPS=6, BW=107KiB/s (110kB/s)(6368KiB/59468msec); 0 zone resets clat (msec): min=46, max=316, avg=116.65, stdev=51.91 lat (msec): min=46, max=316, avg=116.65, stdev=51.91 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 67], 20.00th=[ 78], | 30.00th=[ 85], 40.00th=[ 94], 50.00th=[ 104], 60.00th=[ 115], | 70.00th=[ 127], 80.00th=[ 150], 90.00th=[ 190], 95.00th=[ 230], | 99.00th=[ 292], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 223, per=25.60%, avg=108.28, stdev=46.48, samples=115 iops : min= 1, max= 13, avg= 6.01, stdev= 2.98, samples=115 lat (msec) : 10=2.21%, 20=20.31%, 50=17.97%, 100=29.43%, 250=28.39% lat (msec) : 500=1.69% cpu : usr=0.04%, sys=1.72%, ctx=1366, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145079: Sat Aug 22 05:48:26 2026 read: IOPS=6, BW=96.0KiB/s (99.3kB/s)(5744KiB/59243msec) clat (msec): min=7, max=260, avg=33.32, stdev=32.91 lat (msec): min=7, max=260, avg=33.33, stdev=32.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 71], 95.00th=[ 103], | 99.00th=[ 171], 99.50th=[ 188], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 28, max= 381, per=26.04%, avg=104.69, stdev=72.52, samples=108 iops : min= 1, max= 23, avg= 5.80, stdev= 4.60, samples=108 write: IOPS=6, BW=110KiB/s (113kB/s)(6544KiB/59243msec); 0 zone resets clat (msec): min=42, max=383, avg=115.03, stdev=53.47 lat (msec): min=42, max=383, avg=115.03, stdev=53.47 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 84], 40.00th=[ 93], 50.00th=[ 100], 60.00th=[ 110], | 70.00th=[ 130], 80.00th=[ 150], 90.00th=[ 192], 95.00th=[ 220], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 28, max= 191, per=26.04%, avg=110.15, stdev=47.32, samples=117 iops : min= 1, max= 11, avg= 6.13, stdev= 3.03, samples=117 lat (msec) : 10=2.08%, 20=19.27%, 50=18.36%, 100=32.03%, 250=26.82% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=1.56%, ctx=1356, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145081: Sat Aug 22 05:48:26 2026 read: IOPS=6, BW=107KiB/s (109kB/s)(6256KiB/58518msec) clat (msec): min=7, max=233, avg=32.81, stdev=35.85 lat (msec): min=7, max=233, avg=32.82, stdev=35.85 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 43], 90.00th=[ 65], 95.00th=[ 96], | 99.00th=[ 224], 99.50th=[ 232], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 415, per=29.55%, avg=118.79, stdev=85.40, samples=104 iops : min= 1, max= 25, avg= 6.64, stdev= 5.39, samples=104 write: IOPS=6, BW=103KiB/s (106kB/s)(6032KiB/58518msec); 0 zone resets clat (msec): min=41, max=391, avg=120.43, stdev=61.33 lat (msec): min=41, max=391, avg=120.43, stdev=61.33 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 58], 10.00th=[ 63], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 93], 50.00th=[ 103], 60.00th=[ 114], | 70.00th=[ 132], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 251], | 99.00th=[ 342], 99.50th=[ 384], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 31, max= 192, per=24.64%, avg=104.25, stdev=46.07, samples=113 iops : min= 1, max= 12, avg= 5.74, stdev= 2.96, samples=113 lat (msec) : 10=3.26%, 20=20.05%, 50=20.31%, 100=27.73%, 250=26.17% lat (msec) : 500=2.47% cpu : usr=0.05%, sys=1.59%, ctx=1351, 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=145083: Sat Aug 22 05:48:26 2026 read: IOPS=6, BW=103KiB/s (105kB/s)(6032KiB/58674msec) clat (msec): min=7, max=168, avg=32.42, stdev=29.88 lat (msec): min=7, max=168, avg=32.43, stdev=29.89 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 45], 90.00th=[ 77], 95.00th=[ 105], | 99.00th=[ 153], 99.50th=[ 165], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 31, max= 320, per=28.27%, avg=113.66, stdev=65.23, samples=104 iops : min= 1, max= 20, avg= 6.35, stdev= 4.16, samples=104 write: IOPS=6, BW=107KiB/s (109kB/s)(6256KiB/58674msec); 0 zone resets clat (msec): min=43, max=335, avg=118.61, stdev=56.55 lat (msec): min=43, max=335, avg=118.62, stdev=56.55 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 74], | 30.00th=[ 83], 40.00th=[ 93], 50.00th=[ 102], 60.00th=[ 113], | 70.00th=[ 134], 80.00th=[ 157], 90.00th=[ 203], 95.00th=[ 230], | 99.00th=[ 296], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 223, per=25.38%, avg=107.37, stdev=49.47, samples=115 iops : min= 1, max= 13, avg= 5.95, stdev= 3.17, samples=115 lat (msec) : 10=2.21%, 20=20.96%, 50=17.58%, 100=30.21%, 250=26.69% lat (msec) : 500=2.34% cpu : usr=0.05%, sys=1.59%, ctx=1400, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=403KiB/s (412kB/s), 96.0KiB/s-107KiB/s (99.3kB/s-109kB/s), io=23.4MiB (24.5MB), run=58518-59468msec WRITE: bw=424KiB/s (434kB/s), 103KiB/s-110KiB/s (106kB/s-113kB/s), io=24.6MiB (25.8MB), run=58518-59468msec 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=145106: Sat Aug 22 05:48:40 2026 read: IOPS=2, BW=2434KiB/s (2492kB/s)(7168KiB/2945msec) clat (usec): min=574, max=350837, avg=200250.95, stdev=106848.92 lat (usec): min=575, max=350839, avg=200252.38, stdev=106849.01 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[168821], | 30.00th=[185598], 40.00th=[185598], 50.00th=[202376], 60.00th=[235930], | 70.00th=[235930], 80.00th=[258999], 90.00th=[350225], 95.00th=[350225], | 99.00th=[350225], 99.50th=[350225], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 1510, max= 4007, per=57.43%, avg=2888.00, stdev=1301.78, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1739KiB/s (1780kB/s)(5120KiB/2945msec); 0 zone resets clat (msec): min=164, max=354, avg=252.65, stdev=75.62 lat (msec): min=164, max=354, avg=252.74, stdev=75.62 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1996, max= 4079, per=38.43%, avg=2706.00, stdev=1189.29, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=20.62%, ctx=198, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145107: Sat Aug 22 05:48:40 2026 read: IOPS=0, BW=503KiB/s (515kB/s)(2048KiB/4072msec) clat (usec): min=889, max=200577, avg=100733.42, stdev=141200.80 lat (usec): min=890, max=200579, avg=100735.23, stdev=141201.30 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 889], 10.00th=[ 889], 20.00th=[ 889], | 30.00th=[ 889], 40.00th=[ 889], 50.00th=[ 889], 60.00th=[200279], | 70.00th=[200279], 80.00th=[200279], 90.00th=[200279], 95.00th=[200279], | 99.00th=[200279], 99.50th=[200279], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 1436, max= 2043, per=34.59%, avg=1739.50, stdev=429.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2515KiB/s (2575kB/s)(10.0MiB/4072msec); 0 zone resets clat (msec): min=128, max=647, avg=380.91, stdev=200.10 lat (msec): min=129, max=647, avg=381.03, stdev=200.11 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 136], | 30.00th=[ 245], 40.00th=[ 247], 50.00th=[ 279], 60.00th=[ 439], | 70.00th=[ 464], 80.00th=[ 609], 90.00th=[ 617], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1436, max= 5885, per=49.66%, avg=3496.60, stdev=1795.14, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=17.39%, ctx=129, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145108: Sat Aug 22 05:48:40 2026 read: IOPS=1, BW=1645KiB/s (1684kB/s)(6144KiB/3735msec) clat (usec): min=364, max=296564, avg=79042.59, stdev=127363.81 lat (usec): min=364, max=296564, avg=79043.65, stdev=127363.77 clat percentiles (usec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 627], | 30.00th=[ 627], 40.00th=[ 742], 50.00th=[ 742], 60.00th=[ 906], | 70.00th=[175113], 80.00th=[175113], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 1950, max= 4087, per=66.57%, avg=3348.00, stdev=1211.36, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1645KiB/s (1684kB/s)(6144KiB/3735msec); 0 zone resets clat (msec): min=260, max=774, avg=498.27, stdev=203.25 lat (msec): min=260, max=774, avg=498.34, stdev=203.23 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 550], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1503, max= 2043, per=26.97%, avg=1899.00, stdev=223.82, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 750=16.67%, 1000=8.33% lat (msec) : 250=8.33%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=16.55%, ctx=240, 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=145109: Sat Aug 22 05:48:40 2026 read: IOPS=1, BW=1434KiB/s (1468kB/s)(5120KiB/3571msec) clat (usec): min=419, max=337674, avg=87158.84, stdev=145878.98 lat (usec): min=419, max=337675, avg=87160.03, stdev=145879.07 clat percentiles (usec): | 1.00th=[ 420], 5.00th=[ 420], 10.00th=[ 420], 20.00th=[ 420], | 30.00th=[ 449], 40.00th=[ 449], 50.00th=[ 1975], 60.00th=[ 1975], | 70.00th=[ 94897], 80.00th=[ 94897], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 7801, max= 7801, per=100.00%, avg=7801.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=2007KiB/s (2055kB/s)(7168KiB/3571msec); 0 zone resets clat (msec): min=168, max=884, avg=421.10, stdev=259.10 lat (msec): min=168, max=884, avg=421.20, stdev=259.12 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 182], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 326], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 609], 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= 1950, max= 2043, per=28.49%, avg=2006.20, stdev=37.76, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=16.67% lat (msec) : 2=8.33%, 100=8.33%, 250=16.67%, 500=33.33%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=15.55%, ctx=144, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5029KiB/s (5150kB/s), 503KiB/s-2434KiB/s (515kB/s-2492kB/s), io=20.0MiB (20.0MB), run=2945-4072msec WRITE: bw=7041KiB/s (7210kB/s), 1645KiB/s-2515KiB/s (1684kB/s-2575kB/s), io=28.0MiB (29.4MB), run=2945-4072msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145102: Sat Aug 22 05:48:40 2026 read: IOPS=1, BW=1709KiB/s (1750kB/s)(7168KiB/4194msec) clat (msec): min=99, max=578, avg=270.20, stdev=197.38 lat (msec): min=99, max=578, avg=270.20, stdev=197.38 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 104], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 199], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 510], 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= 1383, max= 4015, per=54.56%, avg=2314.50, stdev=1162.83, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1221KiB/s (1250kB/s)(5120KiB/4194msec); 0 zone resets clat (msec): min=130, max=809, avg=411.86, stdev=253.95 lat (msec): min=130, max=809, avg=411.97, stdev=254.02 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1928, max= 3930, per=44.04%, avg=2615.33, stdev=1138.93, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=5.03%, ctx=94, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145103: Sat Aug 22 05:48:40 2026 read: IOPS=0, BW=459KiB/s (470kB/s)(2048KiB/4464msec) clat (msec): min=102, max=285, avg=193.90, stdev=129.96 lat (msec): min=102, max=285, avg=193.90, stdev=129.96 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 103], 40.00th=[ 103], 50.00th=[ 103], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1367, max= 1988, per=39.55%, avg=1677.50, stdev=439.11, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2294KiB/s (2349kB/s)(10.0MiB/4464msec); 0 zone resets clat (msec): min=152, max=704, avg=385.45, stdev=198.58 lat (msec): min=152, max=704, avg=385.62, stdev=198.56 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 199], | 30.00th=[ 201], 40.00th=[ 234], 50.00th=[ 334], 60.00th=[ 380], | 70.00th=[ 443], 80.00th=[ 584], 90.00th=[ 634], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1928, max= 6144, per=50.45%, avg=2996.17, stdev=1739.63, samples=6 iops : min= 1, max= 6, avg= 2.17, stdev= 2.04, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.02%, sys=7.39%, ctx=132, 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=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=145104: Sat Aug 22 05:48:40 2026 read: IOPS=1, BW=1844KiB/s (1888kB/s)(6144KiB/3332msec) clat (msec): min=65, max=285, avg=121.91, stdev=81.71 lat (msec): min=65, max=285, avg=121.91, stdev=81.71 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 95], 50.00th=[ 95], 60.00th=[ 102], | 70.00th=[ 108], 80.00th=[ 108], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1928, max= 4015, per=77.46%, avg=3286.00, stdev=1177.12, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1844KiB/s (1888kB/s)(6144KiB/3332msec); 0 zone resets clat (msec): min=191, max=889, avg=424.85, stdev=253.60 lat (msec): min=191, max=889, avg=424.96, stdev=253.59 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 451], | 70.00th=[ 468], 80.00th=[ 468], 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= 1928, max= 2760, per=36.42%, avg=2163.00, stdev=399.34, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=25.00%, 250=33.33%, 500=33.33%, 1000=8.33% cpu : usr=0.03%, sys=6.33%, ctx=75, 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=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=145105: Sat Aug 22 05:48:40 2026 read: IOPS=1, BW=1061KiB/s (1086kB/s)(5120KiB/4827msec) clat (msec): min=88, max=625, avg=416.52, stdev=225.20 lat (msec): min=88, max=625, avg=416.52, stdev=225.20 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1903, max= 3930, per=61.93%, avg=2627.00, stdev=1130.76, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1485KiB/s (1521kB/s)(7168KiB/4827msec); 0 zone resets clat (msec): min=140, max=617, avg=368.43, stdev=219.29 lat (msec): min=141, max=617, avg=368.53, stdev=219.29 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 146], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 435], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1393, max= 2007, per=30.44%, avg=1807.75, stdev=280.03, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=33.33% cpu : usr=0.04%, sys=3.67%, ctx=79, 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=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=4243KiB/s (4345kB/s), 459KiB/s-1844KiB/s (470kB/s-1888kB/s), io=20.0MiB (20.0MB), run=3332-4827msec WRITE: bw=5940KiB/s (6082kB/s), 1221KiB/s-2294KiB/s (1250kB/s-2349kB/s), io=28.0MiB (29.4MB), run=3332-4827msec 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=145117: Sat Aug 22 05:48:54 2026 read: IOPS=1, BW=4917KiB/s (5035kB/s)(12.0MiB/2499msec) clat (msec): min=717, max=917, avg=807.15, stdev=101.49 lat (msec): min=717, max=917, avg=807.16, stdev=101.49 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=14.61%, ctx=284, 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=145118: Sat Aug 22 05:48:54 2026 read: IOPS=0, BW=1540KiB/s (1577kB/s)(4096KiB/2660msec) clat (nsec): min=630627k, max=630627k, avg=630627374.00, stdev= 0.00 lat (nsec): min=630630k, max=630630k, avg=630630136.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 6131, max= 6131, per=99.55%, avg=6131.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3080KiB/s (3154kB/s)(8192KiB/2660msec); 0 zone resets clat (msec): min=629, max=1363, avg=996.80, stdev=518.82 lat (msec): min=631, max=1363, avg=997.67, stdev=517.94 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 1368], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8192, max= 8192, per=81.65%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.87%, ctx=117, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145119: Sat Aug 22 05:48:54 2026 write: IOPS=0, BW=3762KiB/s (3853kB/s)(12.0MiB/3266msec); 0 zone resets clat (msec): min=1005, max=1151, avg=1060.37, stdev=79.17 lat (msec): min=1005, max=1151, avg=1060.91, stdev=79.19 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8143, max= 8192, per=81.41%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=5.05%, ctx=66, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145120: Sat Aug 22 05:48:54 2026 write: IOPS=1, BW=5297KiB/s (5424kB/s)(12.0MiB/2320msec); 0 zone resets clat (msec): min=414, max=1259, avg=753.83, stdev=446.46 lat (msec): min=416, max=1259, avg=755.48, stdev=445.36 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8175, max= 8175, per=81.48%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.79%, ctx=50, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6159KiB/s (6307kB/s), 1540KiB/s-4917KiB/s (1577kB/s-5035kB/s), io=16.0MiB (16.8MB), run=2499-2660msec WRITE: bw=9.80MiB/s (10.3MB/s), 3080KiB/s-5297KiB/s (3154kB/s-5424kB/s), io=32.0MiB (33.6MB), run=2320-3266msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145121: Sat Aug 22 05:48:55 2026 read: IOPS=1, BW=5159KiB/s (5282kB/s)(12.0MiB/2382msec) clat (msec): min=621, max=896, avg=765.51, stdev=137.86 lat (msec): min=621, max=896, avg=765.51, stdev=137.86 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 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= 7907, max= 8062, per=100.00%, avg=7984.50, stdev=109.60, 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=4.70%, ctx=61, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145122: Sat Aug 22 05:48:55 2026 read: IOPS=0, BW=1051KiB/s (1077kB/s)(4096KiB/3896msec) clat (nsec): min=1406.4M, max=1406.4M, avg=1406433548.00, stdev= 0.00 lat (nsec): min=1406.4M, max=1406.4M, avg=1406435768.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1401], 5.00th=[ 1401], 10.00th=[ 1401], 20.00th=[ 1401], | 30.00th=[ 1401], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2103KiB/s (2153kB/s)(8192KiB/3896msec); 0 zone resets clat (msec): min=908, max=1450, avg=1179.97, stdev=383.28 lat (msec): min=909, max=1451, avg=1180.43, stdev=383.31 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8192, max= 8192, per=98.03%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.67%, ctx=81, 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=145123: Sat Aug 22 05:48:55 2026 write: IOPS=0, BW=3335KiB/s (3415kB/s)(12.0MiB/3685msec); 0 zone resets clat (msec): min=852, max=1455, avg=1194.28, stdev=309.70 lat (msec): min=852, max=1456, avg=1194.73, stdev=309.72 clat percentiles (msec): | 1.00th=[ 852], 5.00th=[ 852], 10.00th=[ 852], 20.00th=[ 852], | 30.00th=[ 852], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7907, max= 8192, per=96.32%, avg=8049.50, stdev=201.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.63%, ctx=39, 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=145124: Sat Aug 22 05:48:55 2026 write: IOPS=0, BW=3134KiB/s (3209kB/s)(12.0MiB/3921msec); 0 zone resets clat (msec): min=436, max=2588, avg=1254.34, stdev=1165.54 lat (msec): min=437, max=2589, avg=1254.79, stdev=1165.55 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 8062, max= 8143, per=96.95%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.70%, ctx=60, 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=4205KiB/s (4306kB/s), 1051KiB/s-5159KiB/s (1077kB/s-5282kB/s), io=16.0MiB (16.8MB), run=2382-3896msec WRITE: bw=8357KiB/s (8558kB/s), 2103KiB/s-3335KiB/s (2153kB/s-3415kB/s), io=32.0MiB (33.6MB), run=3685-3921msec