== sanity test 398b: DIO and buffer IO race ============== 22:15:26 (1775873726) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.64296 s, 7.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=183661: Fri Apr 10 22:17:43 2026 read: IOPS=12, BW=51.6KiB/s (52.8kB/s)(5992KiB/116199msec) clat (usec): min=37, max=654665, avg=44035.12, stdev=33083.85 lat (usec): min=38, max=654666, avg=44038.01, stdev=33083.86 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 519], 10.00th=[ 16909], 20.00th=[ 23200], | 30.00th=[ 27657], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 61604], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[154141], 99.50th=[185598], 99.90th=[295699], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 5, max= 112, per=25.16%, avg=51.07, stdev=19.79, samples=229 iops : min= 1, max= 28, avg=12.12, stdev= 4.99, samples=229 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(6296KiB/116199msec); 0 zone resets clat (usec): min=709, max=274474, avg=31465.61, stdev=33483.20 lat (usec): min=710, max=274476, avg=31473.46, stdev=33479.84 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1401], 10.00th=[ 1647], 20.00th=[ 3621], | 30.00th=[ 6980], 40.00th=[ 12387], 50.00th=[ 21627], 60.00th=[ 30802], | 70.00th=[ 39584], 80.00th=[ 54264], 90.00th=[ 77071], 95.00th=[ 96994], | 99.00th=[145753], 99.50th=[173016], 99.90th=[206570], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 143, per=25.41%, avg=54.13, stdev=22.71, samples=227 iops : min= 1, max= 35, avg=12.89, stdev= 5.71, samples=227 lat (usec) : 50=0.29%, 100=1.92%, 250=0.13%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=6.15%, 4=4.46%, 10=8.24%, 20=9.93%, 50=41.31% lat (msec) : 100=23.05%, 250=4.04%, 500=0.10%, 750=0.03% cpu : usr=0.09%, sys=5.56%, ctx=6404, 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=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=183662: Fri Apr 10 22:17:43 2026 read: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5940KiB/116883msec) clat (usec): min=34, max=344317, avg=43280.04, stdev=28218.50 lat (usec): min=34, max=344318, avg=43282.25, stdev=28218.24 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 141], 10.00th=[ 15795], 20.00th=[ 22414], | 30.00th=[ 27132], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 62653], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[137364], 99.50th=[147850], 99.90th=[183501], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 102, per=24.84%, avg=50.42, stdev=17.85, samples=229 iops : min= 1, max= 25, avg=11.95, stdev= 4.50, samples=229 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(6348KiB/116883msec); 0 zone resets clat (usec): min=832, max=851052, avg=32804.79, stdev=39384.76 lat (usec): min=832, max=851053, avg=32810.64, stdev=39384.12 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1631], 20.00th=[ 3687], | 30.00th=[ 7177], 40.00th=[ 14877], 50.00th=[ 23200], 60.00th=[ 31065], | 70.00th=[ 41157], 80.00th=[ 55313], 90.00th=[ 76022], 95.00th=[ 99091], | 99.00th=[154141], 99.50th=[173016], 99.90th=[217056], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 119, per=25.24%, avg=53.75, stdev=22.51, samples=229 iops : min= 1, max= 29, avg=12.79, stdev= 5.68, samples=229 lat (usec) : 50=0.33%, 100=1.89%, 250=0.33%, 750=0.03%, 1000=0.07% lat (msec) : 2=6.61%, 4=4.39%, 10=7.23%, 20=10.61%, 50=41.15% lat (msec) : 100=22.88%, 250=4.43%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.53%, ctx=6511, 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=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=183663: Fri Apr 10 22:17:43 2026 read: IOPS=12, BW=51.8KiB/s (53.1kB/s)(6028KiB/116302msec) clat (usec): min=31, max=272853, avg=42341.60, stdev=28608.61 lat (usec): min=31, max=272854, avg=42347.55, stdev=28613.40 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 4555], 10.00th=[ 16319], 20.00th=[ 22414], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[141558], 99.50th=[179307], 99.90th=[242222], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 111, per=25.36%, avg=51.47, stdev=21.18, samples=228 iops : min= 1, max= 27, avg=12.22, stdev= 5.32, samples=228 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(6260KiB/116302msec); 0 zone resets clat (usec): min=809, max=871192, avg=33209.20, stdev=39859.75 lat (usec): min=809, max=871195, avg=33211.11, stdev=39859.91 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1385], 10.00th=[ 1778], 20.00th=[ 4015], | 30.00th=[ 7242], 40.00th=[ 15270], 50.00th=[ 24511], 60.00th=[ 31851], | 70.00th=[ 41157], 80.00th=[ 54264], 90.00th=[ 80217], 95.00th=[101188], | 99.00th=[156238], 99.50th=[168821], 99.90th=[225444], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 119, per=25.19%, avg=53.66, stdev=22.61, samples=227 iops : min= 1, max= 29, avg=12.78, stdev= 5.69, samples=227 lat (usec) : 50=0.36%, 100=1.86%, 250=0.10%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=5.76%, 4=4.17%, 10=7.65%, 20=10.68%, 50=43.10% lat (msec) : 100=21.48%, 250=4.43%, 500=0.03%, 1000=0.03% cpu : usr=0.10%, sys=5.51%, ctx=6491, 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=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=183664: Fri Apr 10 22:17:43 2026 read: IOPS=12, BW=51.4KiB/s (52.6kB/s)(6052KiB/117811msec) clat (usec): min=35, max=240501, avg=42004.35, stdev=25969.18 lat (usec): min=35, max=240503, avg=42005.83, stdev=25969.16 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 163], 10.00th=[ 15401], 20.00th=[ 21890], | 30.00th=[ 26608], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 51119], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 89654], | 99.00th=[119014], 99.50th=[147850], 99.90th=[183501], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 7, max= 111, per=25.21%, avg=51.17, stdev=19.56, samples=230 iops : min= 1, max= 27, avg=12.13, stdev= 4.93, samples=230 write: IOPS=13, BW=52.9KiB/s (54.2kB/s)(6236KiB/117811msec); 0 zone resets clat (usec): min=775, max=820260, avg=34339.64, stdev=40965.49 lat (usec): min=776, max=820262, avg=34343.20, stdev=40964.22 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1385], 10.00th=[ 1663], 20.00th=[ 3818], | 30.00th=[ 7635], 40.00th=[ 15401], 50.00th=[ 24511], 60.00th=[ 31851], | 70.00th=[ 43779], 80.00th=[ 56886], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[164627], 99.50th=[187696], 99.90th=[350225], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=52.94, stdev=22.11, samples=229 iops : min= 1, max= 31, avg=12.59, stdev= 5.58, samples=229 lat (usec) : 50=0.20%, 100=2.18%, 250=0.10%, 750=0.03%, 1000=0.29% lat (msec) : 2=6.15%, 4=4.20%, 10=7.03%, 20=10.84%, 50=40.92% lat (msec) : 100=23.76%, 250=4.23%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.22%, ctx=6523, majf=0, minf=18 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=204KiB/s (209kB/s), 50.8KiB/s-51.8KiB/s (52.0kB/s-53.1kB/s), io=23.4MiB (24.6MB), run=116199-117811msec WRITE: bw=213KiB/s (219kB/s), 52.9KiB/s-54.3KiB/s (54.2kB/s-55.6kB/s), io=24.6MiB (25.7MB), run=116199-117811msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183665: Fri Apr 10 22:18:18 2026 read: IOPS=9, BW=39.3KiB/s (40.3kB/s)(5992KiB/152329msec) clat (msec): min=5, max=667, avg=40.61, stdev=42.64 lat (msec): min=5, max=667, avg=40.61, stdev=42.64 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 58], 90.00th=[ 93], 95.00th=[ 126], | 99.00th=[ 207], 99.50th=[ 239], 99.90th=[ 279], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 191, per=25.46%, avg=39.71, stdev=28.93, samples=293 iops : min= 1, max= 47, avg= 9.28, stdev= 7.25, samples=293 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6296KiB/152329msec); 0 zone resets clat (msec): min=10, max=411, avg=57.73, stdev=42.96 lat (msec): min=10, max=411, avg=57.73, stdev=42.96 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 53], | 70.00th=[ 69], 80.00th=[ 86], 90.00th=[ 115], 95.00th=[ 140], | 99.00th=[ 209], 99.50th=[ 271], 99.90th=[ 326], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 134, per=25.30%, avg=41.50, stdev=28.39, samples=295 iops : min= 1, max= 33, avg= 9.72, stdev= 7.13, samples=295 lat (msec) : 10=3.32%, 20=19.89%, 50=43.39%, 100=22.01%, 250=10.90% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.06%, sys=2.13%, ctx=4903, 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=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=183666: Fri Apr 10 22:18:18 2026 read: IOPS=9, BW=38.9KiB/s (39.9kB/s)(5940KiB/152601msec) clat (msec): min=5, max=1070, avg=38.82, stdev=45.41 lat (msec): min=5, max=1070, avg=38.82, stdev=45.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 83], 95.00th=[ 113], | 99.00th=[ 188], 99.50th=[ 226], 99.90th=[ 317], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 166, per=25.40%, avg=39.63, stdev=29.12, samples=292 iops : min= 1, max= 41, avg= 9.26, stdev= 7.32, samples=292 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6348KiB/152601msec); 0 zone resets clat (msec): min=10, max=324, avg=59.58, stdev=43.33 lat (msec): min=10, max=324, avg=59.59, stdev=43.33 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 70], 80.00th=[ 89], 90.00th=[ 121], 95.00th=[ 148], | 99.00th=[ 203], 99.50th=[ 232], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 143, per=25.30%, avg=41.50, stdev=27.13, samples=298 iops : min= 1, max= 35, avg= 9.72, stdev= 6.80, samples=298 lat (msec) : 10=3.39%, 20=18.85%, 50=43.95%, 100=22.59%, 250=10.97% lat (msec) : 500=0.23%, 2000=0.03% cpu : usr=0.07%, sys=2.08%, ctx=4820, 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=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=183667: Fri Apr 10 22:18:18 2026 read: IOPS=9, BW=39.7KiB/s (40.6kB/s)(6028KiB/151985msec) clat (msec): min=4, max=321, avg=38.23, stdev=35.32 lat (msec): min=4, max=321, avg=38.23, stdev=35.32 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 86], 95.00th=[ 115], | 99.00th=[ 167], 99.50th=[ 203], 99.90th=[ 241], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 7, max= 160, per=25.73%, avg=40.14, stdev=28.99, samples=292 iops : min= 1, max= 40, avg= 9.38, stdev= 7.27, samples=292 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6260KiB/151985msec); 0 zone resets clat (msec): min=9, max=841, avg=59.90, stdev=48.20 lat (msec): min=9, max=841, avg=59.91, stdev=48.20 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 70], 80.00th=[ 89], 90.00th=[ 116], 95.00th=[ 142], | 99.00th=[ 222], 99.50th=[ 268], 99.90th=[ 414], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 127, per=25.06%, avg=41.10, stdev=28.02, samples=296 iops : min= 1, max= 31, avg= 9.62, stdev= 7.03, samples=296 lat (msec) : 10=3.29%, 20=18.91%, 50=44.73%, 100=21.97%, 250=10.77% lat (msec) : 500=0.29%, 1000=0.03% cpu : usr=0.06%, sys=2.22%, ctx=4964, 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=183668: Fri Apr 10 22:18:18 2026 read: IOPS=9, BW=39.5KiB/s (40.4kB/s)(6052KiB/153226msec) clat (msec): min=5, max=289, avg=39.31, stdev=38.24 lat (msec): min=5, max=289, avg=39.31, stdev=38.24 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 89], 95.00th=[ 118], | 99.00th=[ 188], 99.50th=[ 222], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 160, per=25.86%, avg=40.35, stdev=30.52, samples=292 iops : min= 1, max= 40, avg= 9.44, stdev= 7.67, samples=292 write: IOPS=10, BW=40.7KiB/s (41.7kB/s)(6236KiB/153226msec); 0 zone resets clat (msec): min=10, max=979, avg=59.73, stdev=48.31 lat (msec): min=10, max=979, avg=59.73, stdev=48.31 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 70], 80.00th=[ 90], 90.00th=[ 118], 95.00th=[ 146], | 99.00th=[ 201], 99.50th=[ 234], 99.90th=[ 321], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 119, per=24.62%, avg=40.38, stdev=27.03, samples=300 iops : min= 1, max= 29, avg= 9.44, stdev= 6.79, samples=300 lat (msec) : 10=3.26%, 20=19.60%, 50=42.22%, 100=23.24%, 250=11.39% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.06%, sys=2.16%, ctx=4943, 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=157KiB/s (160kB/s), 38.9KiB/s-39.7KiB/s (39.9kB/s-40.6kB/s), io=23.4MiB (24.6MB), run=151985-153226msec WRITE: bw=164KiB/s (168kB/s), 40.7KiB/s-41.6KiB/s (41.7kB/s-42.6kB/s), io=24.6MiB (25.7MB), run=151985-153226msec 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=183703: Fri Apr 10 22:18:51 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(5920KiB/24247msec) clat (usec): min=23, max=160810, avg=34116.65, stdev=23986.79 lat (usec): min=23, max=160810, avg=34117.93, stdev=23986.77 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 16909], | 30.00th=[ 21365], 40.00th=[ 27132], 50.00th=[ 31327], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 50070], 90.00th=[ 62129], 95.00th=[ 76022], | 99.00th=[110625], 99.50th=[129500], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 125, max= 479, per=25.16%, avg=243.30, stdev=78.74, samples=47 iops : min= 7, max= 29, avg=14.47, stdev= 4.93, samples=47 write: IOPS=16, BW=263KiB/s (269kB/s)(6368KiB/24247msec); 0 zone resets clat (usec): min=1162, max=152347, avg=29037.36, stdev=26071.01 lat (usec): min=1163, max=152348, avg=29042.98, stdev=26067.90 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1745], 10.00th=[ 2442], 20.00th=[ 5211], | 30.00th=[ 8717], 40.00th=[ 16450], 50.00th=[ 21627], 60.00th=[ 29492], | 70.00th=[ 39060], 80.00th=[ 50594], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[106431], 99.50th=[120062], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 120, max= 445, per=25.87%, avg=263.36, stdev=83.95, samples=47 iops : min= 7, max= 27, avg=15.74, stdev= 5.35, samples=47 lat (usec) : 50=1.43%, 100=4.69%, 250=0.26%, 750=0.13% lat (msec) : 2=4.17%, 4=4.69%, 10=7.94%, 20=12.89%, 50=43.23% lat (msec) : 100=18.88%, 250=1.69% cpu : usr=0.09%, sys=6.43%, ctx=1603, 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=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=183704: Fri Apr 10 22:18:51 2026 read: IOPS=14, BW=233KiB/s (239kB/s)(5744KiB/24616msec) clat (usec): min=48, max=146154, avg=36452.05, stdev=21972.51 lat (usec): min=48, max=146155, avg=36453.38, stdev=21972.62 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 68], 10.00th=[ 14091], 20.00th=[ 19792], | 30.00th=[ 23987], 40.00th=[ 27919], 50.00th=[ 33817], 60.00th=[ 39060], | 70.00th=[ 45876], 80.00th=[ 53740], 90.00th=[ 64226], 95.00th=[ 70779], | 99.00th=[113771], 99.50th=[128451], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 31, max= 415, per=23.96%, avg=231.71, stdev=78.71, samples=48 iops : min= 1, max= 25, avg=13.73, stdev= 4.95, samples=48 write: IOPS=16, BW=266KiB/s (272kB/s)(6544KiB/24616msec); 0 zone resets clat (usec): min=1069, max=163905, avg=27809.81, stdev=27374.95 lat (usec): min=1071, max=163908, avg=27812.35, stdev=27374.86 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1926], 10.00th=[ 2704], 20.00th=[ 4948], | 30.00th=[ 7439], 40.00th=[ 12256], 50.00th=[ 19006], 60.00th=[ 25822], | 70.00th=[ 34866], 80.00th=[ 51643], 90.00th=[ 67634], 95.00th=[ 78119], | 99.00th=[123208], 99.50th=[149947], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 95, max= 537, per=25.79%, avg=262.58, stdev=89.96, samples=48 iops : min= 5, max= 33, avg=15.69, stdev= 5.63, samples=48 lat (usec) : 50=0.13%, 100=3.65% lat (msec) : 2=3.39%, 4=5.21%, 10=10.81%, 20=13.41%, 50=40.49% lat (msec) : 100=21.22%, 250=1.69% cpu : usr=0.11%, sys=6.21%, ctx=1597, 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=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=183705: Fri Apr 10 22:18:51 2026 read: IOPS=15, BW=254KiB/s (260kB/s)(6256KiB/24651msec) clat (usec): min=40, max=175329, avg=35922.34, stdev=22379.74 lat (usec): min=42, max=175331, avg=35923.78, stdev=22379.88 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 13698], 20.00th=[ 21103], | 30.00th=[ 24511], 40.00th=[ 28443], 50.00th=[ 32637], 60.00th=[ 36439], | 70.00th=[ 43779], 80.00th=[ 51643], 90.00th=[ 61604], 95.00th=[ 71828], | 99.00th=[121111], 99.50th=[127402], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 60, max= 411, per=26.19%, avg=253.25, stdev=73.66, samples=48 iops : min= 3, max= 25, avg=15.10, stdev= 4.64, samples=48 write: IOPS=15, BW=245KiB/s (251kB/s)(6032KiB/24651msec); 0 zone resets clat (usec): min=1558, max=184493, avg=27619.30, stdev=25474.38 lat (usec): min=1560, max=184495, avg=27633.70, stdev=25490.65 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 1991], 10.00th=[ 2769], 20.00th=[ 4948], | 30.00th=[ 7898], 40.00th=[ 13435], 50.00th=[ 22414], 60.00th=[ 28181], | 70.00th=[ 36963], 80.00th=[ 49546], 90.00th=[ 63177], 95.00th=[ 76022], | 99.00th=[113771], 99.50th=[120062], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 62, max= 448, per=23.73%, avg=241.60, stdev=87.70, samples=48 iops : min= 3, max= 28, avg=14.35, stdev= 5.52, samples=48 lat (usec) : 50=0.39%, 100=3.52%, 250=0.13%, 500=0.13% lat (msec) : 2=2.86%, 4=4.82%, 10=9.77%, 20=10.68%, 50=47.14% lat (msec) : 100=19.27%, 250=1.30% cpu : usr=0.04%, sys=6.36%, ctx=1627, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183707: Fri Apr 10 22:18:51 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(6032KiB/24746msec) clat (usec): min=31, max=151427, avg=36118.76, stdev=23790.28 lat (usec): min=31, max=151429, avg=36120.03, stdev=23790.28 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 86], 20.00th=[ 19268], | 30.00th=[ 24249], 40.00th=[ 27919], 50.00th=[ 33817], 60.00th=[ 38011], | 70.00th=[ 43254], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 78119], | 99.00th=[121111], 99.50th=[137364], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 60, max= 411, per=24.56%, avg=237.46, stdev=73.94, samples=48 iops : min= 3, max= 25, avg=14.10, stdev= 4.66, samples=48 write: IOPS=15, BW=253KiB/s (259kB/s)(6256KiB/24746msec); 0 zone resets clat (usec): min=1198, max=147308, avg=27472.03, stdev=26614.32 lat (usec): min=1201, max=147311, avg=27478.60, stdev=26619.19 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1958], 10.00th=[ 2671], 20.00th=[ 4228], | 30.00th=[ 7177], 40.00th=[ 14615], 50.00th=[ 20579], 60.00th=[ 25560], | 70.00th=[ 34866], 80.00th=[ 47449], 90.00th=[ 63701], 95.00th=[ 81265], | 99.00th=[126354], 99.50th=[132645], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 121, max= 448, per=24.64%, avg=250.79, stdev=81.17, samples=48 iops : min= 7, max= 28, avg=14.94, stdev= 5.18, samples=48 lat (usec) : 50=0.52%, 100=4.43%, 250=0.13% lat (msec) : 2=3.26%, 4=6.12%, 10=8.46%, 20=12.50%, 50=44.66% lat (msec) : 100=17.84%, 250=2.08% cpu : usr=0.09%, sys=6.54%, ctx=1629, 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=968KiB/s (991kB/s), 233KiB/s-254KiB/s (239kB/s-260kB/s), io=23.4MiB (24.5MB), run=24247-24746msec WRITE: bw=1018KiB/s (1043kB/s), 245KiB/s-266KiB/s (251kB/s-272kB/s), io=24.6MiB (25.8MB), run=24247-24746msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183708: Fri Apr 10 22:19:01 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5920KiB/34013msec) clat (msec): min=6, max=221, avg=34.42, stdev=29.21 lat (msec): min=6, max=221, avg=34.42, stdev=29.21 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 80], 95.00th=[ 103], | 99.00th=[ 133], 99.50th=[ 155], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 31, max= 479, per=24.63%, avg=173.15, stdev=104.63, samples=67 iops : min= 1, max= 29, avg=10.01, stdev= 6.60, samples=67 write: IOPS=11, BW=187KiB/s (192kB/s)(6368KiB/34013msec); 0 zone resets clat (msec): min=13, max=209, avg=53.21, stdev=34.78 lat (msec): min=13, max=209, avg=53.21, stdev=34.78 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 50], | 70.00th=[ 62], 80.00th=[ 77], 90.00th=[ 108], 95.00th=[ 131], | 99.00th=[ 169], 99.50th=[ 205], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 31, max= 416, per=25.24%, avg=186.52, stdev=104.10, samples=67 iops : min= 1, max= 26, avg=10.85, stdev= 6.58, samples=67 lat (msec) : 10=2.60%, 20=17.84%, 50=50.39%, 100=20.31%, 250=8.85% cpu : usr=0.08%, sys=2.40%, ctx=1256, 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=183709: Fri Apr 10 22:19:01 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5744KiB/34065msec) clat (msec): min=5, max=169, avg=34.64, stdev=28.78 lat (msec): min=5, max=169, avg=34.64, stdev=28.78 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 51], 90.00th=[ 74], 95.00th=[ 104], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 29, max= 566, per=23.76%, avg=167.00, stdev=109.41, samples=67 iops : min= 1, max= 35, avg= 9.63, stdev= 6.95, samples=67 write: IOPS=12, BW=192KiB/s (197kB/s)(6544KiB/34065msec); 0 zone resets clat (msec): min=10, max=182, avg=52.38, stdev=32.11 lat (msec): min=10, max=182, avg=52.38, stdev=32.11 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 51], | 70.00th=[ 63], 80.00th=[ 80], 90.00th=[ 103], 95.00th=[ 115], | 99.00th=[ 150], 99.50th=[ 157], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 63, max= 448, per=25.75%, avg=190.33, stdev=102.40, samples=67 iops : min= 3, max= 28, avg=11.09, stdev= 6.44, samples=67 lat (msec) : 10=2.08%, 20=18.62%, 50=48.57%, 100=22.27%, 250=8.46% cpu : usr=0.06%, sys=2.36%, ctx=1266, 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=183710: Fri Apr 10 22:19:01 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6256KiB/34024msec) clat (msec): min=7, max=161, avg=37.04, stdev=29.51 lat (msec): min=7, max=161, avg=37.04, stdev=29.51 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 41], 80.00th=[ 57], 90.00th=[ 84], 95.00th=[ 105], | 99.00th=[ 126], 99.50th=[ 159], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 59, max= 557, per=26.19%, avg=184.10, stdev=116.73, samples=67 iops : min= 3, max= 34, avg=10.69, stdev= 7.35, samples=67 write: IOPS=11, BW=177KiB/s (182kB/s)(6032KiB/34024msec); 0 zone resets clat (msec): min=12, max=202, avg=51.35, stdev=30.72 lat (msec): min=12, max=202, avg=51.35, stdev=30.72 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 48], | 70.00th=[ 57], 80.00th=[ 79], 90.00th=[ 92], 95.00th=[ 108], | 99.00th=[ 144], 99.50th=[ 192], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 31, max= 503, per=23.64%, avg=174.73, stdev=95.12, samples=67 iops : min= 1, max= 31, avg=10.10, stdev= 6.00, samples=67 lat (msec) : 10=2.34%, 20=16.93%, 50=49.61%, 100=23.96%, 250=7.16% cpu : usr=0.06%, sys=2.27%, ctx=1149, 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=183711: Fri Apr 10 22:19:01 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33916msec) clat (msec): min=6, max=225, avg=35.36, stdev=30.74 lat (msec): min=6, max=225, avg=35.36, stdev=30.74 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 83], 95.00th=[ 103], | 99.00th=[ 142], 99.50th=[ 180], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 509, per=25.42%, avg=178.70, stdev=105.83, samples=66 iops : min= 1, max= 31, avg=10.36, stdev= 6.72, samples=66 write: IOPS=11, BW=184KiB/s (189kB/s)(6256KiB/33916msec); 0 zone resets clat (msec): min=9, max=173, avg=51.87, stdev=34.31 lat (msec): min=9, max=173, avg=51.88, stdev=34.31 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 34], 50.00th=[ 39], 60.00th=[ 44], | 70.00th=[ 59], 80.00th=[ 81], 90.00th=[ 112], 95.00th=[ 126], | 99.00th=[ 153], 99.50th=[ 163], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 31, max= 479, per=24.93%, avg=184.22, stdev=112.21, samples=67 iops : min= 1, max= 29, avg=10.70, stdev= 7.06, samples=67 lat (msec) : 10=2.99%, 20=18.23%, 50=50.52%, 100=19.27%, 250=8.98% cpu : usr=0.06%, sys=2.46%, ctx=1279, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=703KiB/s (720kB/s), 169KiB/s-184KiB/s (173kB/s-188kB/s), io=23.4MiB (24.5MB), run=33916-34065msec WRITE: bw=740KiB/s (758kB/s), 177KiB/s-192KiB/s (182kB/s-197kB/s), io=24.6MiB (25.8MB), run=33916-34065msec 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=183726: Fri Apr 10 22:19:13 2026 read: IOPS=2, BW=2052KiB/s (2101kB/s)(7168KiB/3493msec) clat (usec): min=611, max=1343.4k, avg=319795.72, stdev=457492.90 lat (usec): min=612, max=1343.4k, avg=319797.74, stdev=457492.89 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], | 20.00th=[ 137364], 30.00th=[ 154141], 40.00th=[ 154141], | 50.00th=[ 168821], 60.00th=[ 189793], 70.00th=[ 189793], | 80.00th=[ 244319], 90.00th=[1350566], 95.00th=[1350566], | 99.00th=[1350566], 99.50th=[1350566], 99.90th=[1350566], | 99.95th=[1350566], 99.99th=[1350566] bw ( KiB/s): min= 2035, max= 6119, per=76.34%, avg=3796.33, stdev=2099.07, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1466KiB/s (1501kB/s)(5120KiB/3493msec); 0 zone resets clat (msec): min=96, max=386, avg=249.45, stdev=107.56 lat (msec): min=96, max=386, avg=249.56, stdev=107.58 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 96], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 2035, max= 3984, per=38.58%, avg=2686.00, stdev=1124.10, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=16.95%, ctx=441, 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=183727: Fri Apr 10 22:19:13 2026 read: IOPS=0, BW=520KiB/s (532kB/s)(2048KiB/3942msec) clat (msec): min=119, max=159, avg=139.74, stdev=28.35 lat (msec): min=119, max=159, avg=139.74, stdev=28.34 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 121], 60.00th=[ 161], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 161], 95.00th=[ 161], | 99.00th=[ 161], 99.50th=[ 161], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 1630, max= 2035, per=36.85%, avg=1832.50, stdev=286.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2598KiB/s (2660kB/s)(10.0MiB/3942msec); 0 zone resets clat (msec): min=75, max=1578, avg=365.49, stdev=447.78 lat (msec): min=75, max=1578, avg=365.63, stdev=447.78 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 78], | 30.00th=[ 171], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 262], 80.00th=[ 313], 90.00th=[ 567], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 1992, max= 8192, per=58.55%, avg=4076.50, stdev=2912.63, samples=4 iops : min= 1, max= 8, avg= 3.25, stdev= 3.30, samples=4 lat (msec) : 100=16.67%, 250=50.00%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=16.14%, ctx=181, 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=183728: Fri Apr 10 22:19:13 2026 read: IOPS=1, BW=1741KiB/s (1782kB/s)(6144KiB/3530msec) clat (usec): min=845, max=280578, avg=101795.56, stdev=102899.58 lat (usec): min=847, max=280579, avg=101796.81, stdev=102899.35 clat percentiles (usec): | 1.00th=[ 848], 5.00th=[ 848], 10.00th=[ 848], 20.00th=[ 1762], | 30.00th=[ 1762], 40.00th=[ 91751], 50.00th=[ 91751], 60.00th=[108528], | 70.00th=[127402], 80.00th=[127402], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 1992, max= 4079, per=67.98%, avg=3380.67, stdev=1202.63, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1741KiB/s (1782kB/s)(6144KiB/3530msec); 0 zone resets clat (msec): min=204, max=1521, avg=486.17, stdev=509.55 lat (msec): min=204, max=1521, avg=486.28, stdev=509.56 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1992, max= 3436, per=34.12%, avg=2375.50, stdev=707.32, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.03%, sys=14.28%, ctx=149, 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=183729: Fri Apr 10 22:19:13 2026 read: IOPS=1, BW=1243KiB/s (1273kB/s)(5120KiB/4118msec) clat (usec): min=556, max=237580, avg=116680.69, stdev=110690.59 lat (usec): min=557, max=237582, avg=116682.20, stdev=110690.72 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[ 594], 40.00th=[ 594], 50.00th=[147850], 60.00th=[147850], | 70.00th=[198181], 80.00th=[198181], 90.00th=[238027], 95.00th=[238027], | 99.00th=[238027], 99.50th=[238027], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1741KiB/s (1782kB/s)(7168KiB/4118msec); 0 zone resets clat (msec): min=128, max=1596, avg=504.49, stdev=543.69 lat (msec): min=128, max=1597, avg=504.70, stdev=543.95 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 136], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 234], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 827], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 1738, max= 4071, per=34.11%, avg=2375.00, stdev=956.21, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=58.33%, 500=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=11.71%, ctx=164, 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=4973KiB/s (5093kB/s), 520KiB/s-2052KiB/s (532kB/s-2101kB/s), io=20.0MiB (20.0MB), run=3493-4118msec WRITE: bw=6963KiB/s (7130kB/s), 1466KiB/s-2598KiB/s (1501kB/s-2660kB/s), io=28.0MiB (29.4MB), run=3493-4118msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183721: Fri Apr 10 22:19:13 2026 read: IOPS=1, BW=2006KiB/s (2054kB/s)(7168KiB/3574msec) clat (msec): min=79, max=830, avg=280.01, stdev=265.71 lat (msec): min=79, max=830, avg=280.01, stdev=265.71 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 110], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 176], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 397], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 2011, max= 5527, per=75.14%, avg=3191.00, stdev=2023.07, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1433KiB/s (1467kB/s)(5120KiB/3574msec); 0 zone resets clat (msec): min=93, max=903, avg=306.22, stdev=341.25 lat (msec): min=93, max=903, avg=306.63, stdev=341.10 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 165], 60.00th=[ 165], | 70.00th=[ 271], 80.00th=[ 271], 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= 1381, max= 6035, per=53.00%, avg=3151.67, stdev=2518.62, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=25.00%, 250=41.67%, 500=16.67%, 1000=16.67% cpu : usr=0.00%, sys=5.12%, ctx=70, 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=183722: Fri Apr 10 22:19:13 2026 read: IOPS=0, BW=458KiB/s (469kB/s)(2048KiB/4472msec) clat (msec): min=64, max=668, avg=366.54, stdev=426.51 lat (msec): min=64, max=668, avg=366.54, stdev=426.51 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 65], 40.00th=[ 65], 50.00th=[ 65], 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= 1383, max= 2039, per=40.29%, avg=1711.00, stdev=463.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2290KiB/s (2345kB/s)(10.0MiB/4472msec); 0 zone resets clat (msec): min=93, max=1670, avg=365.98, stdev=472.59 lat (msec): min=93, max=1670, avg=366.10, stdev=472.59 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 113], | 30.00th=[ 127], 40.00th=[ 128], 50.00th=[ 218], 60.00th=[ 220], | 70.00th=[ 275], 80.00th=[ 397], 90.00th=[ 426], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 2011, max= 4071, per=50.32%, avg=2991.80, stdev=1030.74, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=5.99%, ctx=109, 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=183723: Fri Apr 10 22:19:13 2026 read: IOPS=1, BW=1391KiB/s (1424kB/s)(6144KiB/4417msec) clat (msec): min=120, max=373, avg=230.85, stdev=113.02 lat (msec): min=120, max=373, avg=230.86, stdev=113.02 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 275], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1706, max= 4023, per=57.71%, avg=2450.75, stdev=1059.72, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1391KiB/s (1424kB/s)(6144KiB/4417msec); 0 zone resets clat (msec): min=107, max=1866, avg=497.83, stdev=683.54 lat (msec): min=107, max=1866, avg=497.99, stdev=683.53 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 330], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 1706, max= 4071, per=44.45%, avg=2643.00, stdev=1047.97, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=41.67%, 2000=8.33% cpu : usr=0.05%, sys=4.44%, ctx=102, 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=183724: Fri Apr 10 22:19:13 2026 read: IOPS=1, BW=1062KiB/s (1087kB/s)(5120KiB/4822msec) clat (msec): min=77, max=716, avg=298.11, stdev=270.70 lat (msec): min=77, max=716, avg=298.11, stdev=270.70 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 209], 60.00th=[ 209], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 2039, max= 4071, per=71.93%, avg=3055.00, stdev=1436.84, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1487KiB/s (1522kB/s)(7168KiB/4822msec); 0 zone resets clat (msec): min=62, max=1857, avg=464.05, stdev=648.48 lat (msec): min=62, max=1858, avg=464.35, stdev=648.91 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 67], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 201], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 659], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 1393, max= 2039, per=30.06%, avg=1787.25, stdev=303.03, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=33.33%, 250=25.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=5.12%, ctx=110, 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=4247KiB/s (4349kB/s), 458KiB/s-2006KiB/s (469kB/s-2054kB/s), io=20.0MiB (20.0MB), run=3574-4822msec WRITE: bw=5946KiB/s (6089kB/s), 1391KiB/s-2290KiB/s (1424kB/s-2345kB/s), io=28.0MiB (29.4MB), run=3574-4822msec 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=183735: Fri Apr 10 22:19:23 2026 read: IOPS=1, BW=6234KiB/s (6384kB/s)(12.0MiB/1971msec) clat (msec): min=552, max=758, avg=627.02, stdev=114.18 lat (msec): min=552, max=758, avg=627.02, stdev=114.18 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8031, max= 8094, per=100.00%, avg=8062.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.09%, ctx=265, majf=0, minf=7 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=183736: Fri Apr 10 22:19:23 2026 read: IOPS=0, BW=1662KiB/s (1702kB/s)(4096KiB/2465msec) clat (nsec): min=564405k, max=564405k, avg=564404937.00, stdev= 0.00 lat (nsec): min=564406k, max=564406k, avg=564405925.00, stdev= 0.00 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=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3323KiB/s (3403kB/s)(8192KiB/2465msec); 0 zone resets clat (msec): min=450, max=1365, avg=907.88, stdev=647.02 lat (msec): min=450, max=1366, avg=908.59, stdev=647.29 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 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= 8094, max= 8094, per=60.89%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.75%, ctx=177, 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=183737: Fri Apr 10 22:19:23 2026 write: IOPS=1, BW=6018KiB/s (6162kB/s)(12.0MiB/2042msec); 0 zone resets clat (msec): min=480, max=804, avg=656.42, stdev=164.01 lat (msec): min=480, max=806, avg=657.58, stdev=164.74 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8031, max= 8175, per=60.96%, avg=8103.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=11.12%, ctx=107, majf=0, minf=7 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=183738: Fri Apr 10 22:19:23 2026 write: IOPS=1, BW=7807KiB/s (7994kB/s)(12.0MiB/1574msec); 0 zone resets clat (msec): min=165, max=928, avg=505.92, stdev=388.49 lat (msec): min=165, max=929, avg=506.40, stdev=388.43 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min=11055, max=11055, per=83.16%, avg=11055.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=5.85%, ctx=38, 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 Run status group 0 (all jobs): READ: bw=6647KiB/s (6806kB/s), 1662KiB/s-6234KiB/s (1702kB/s-6384kB/s), io=16.0MiB (16.8MB), run=1971-2465msec WRITE: bw=12.0MiB/s (13.6MB/s), 3323KiB/s-7807KiB/s (3403kB/s-7994kB/s), io=32.0MiB (33.6MB), run=1574-2465msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183740: Fri Apr 10 22:19:24 2026 read: IOPS=1, BW=5251KiB/s (5377kB/s)(12.0MiB/2340msec) clat (msec): min=195, max=1253, avg=766.27, stdev=534.15 lat (msec): min=195, max=1253, avg=766.27, stdev=534.15 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.13%, ctx=57, majf=0, minf=7 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=183741: Fri Apr 10 22:19:24 2026 read: IOPS=0, BW=1671KiB/s (1711kB/s)(4096KiB/2451msec) clat (nsec): min=691252k, max=691252k, avg=691251901.00, stdev= 0.00 lat (nsec): min=691253k, max=691253k, avg=691253006.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3342KiB/s (3423kB/s)(8192KiB/2451msec); 0 zone resets clat (msec): min=281, max=1472, avg=876.93, stdev=842.29 lat (msec): min=281, max=1473, avg=877.42, stdev=842.36 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 1469], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8175, max= 8175, per=61.15%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.04%, sys=6.53%, ctx=36, 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=183742: Fri Apr 10 22:19:24 2026 write: IOPS=1, BW=5968KiB/s (6111kB/s)(12.0MiB/2059msec); 0 zone resets clat (msec): min=212, max=1290, avg=677.89, stdev=553.96 lat (msec): min=212, max=1291, avg=678.54, stdev=554.07 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7037, max= 7037, per=52.64%, avg=7037.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=4.91%, ctx=42, majf=0, minf=7 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=183743: Fri Apr 10 22:19:24 2026 write: IOPS=1, BW=6755KiB/s (6917kB/s)(12.0MiB/1819msec); 0 zone resets clat (msec): min=201, max=1210, avg=604.12, stdev=534.36 lat (msec): min=202, max=1210, avg=605.83, stdev=533.58 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 1217], 80.00th=[ 1217], 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= 7340, max= 7340, per=54.90%, avg=7340.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.79%, ctx=40, 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 Run status group 0 (all jobs): READ: bw=6685KiB/s (6845kB/s), 1671KiB/s-5251KiB/s (1711kB/s-5377kB/s), io=16.0MiB (16.8MB), run=2340-2451msec WRITE: bw=13.1MiB/s (13.7MB/s), 3342KiB/s-6755KiB/s (3423kB/s-6917kB/s), io=32.0MiB (33.6MB), run=1819-2451msec