== sanity test 398b: DIO and buffer IO race ============== 14:06:53 (1788890813) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.32656 s, 15.1 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=159823: Tue Sep 8 14:07:51 2026 read: IOPS=31, BW=124KiB/s (127kB/s)(5992KiB/48222msec) clat (usec): min=22, max=1163.4k, avg=16867.74, stdev=31334.56 lat (usec): min=23, max=1163.4k, avg=16868.53, stdev=31334.57 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 3752], 10.00th=[ 6718], | 20.00th=[ 8586], 30.00th=[ 10159], 40.00th=[ 11994], | 50.00th=[ 14091], 60.00th=[ 16450], 70.00th=[ 19268], | 80.00th=[ 22414], 90.00th=[ 28181], 95.00th=[ 34341], | 99.00th=[ 56361], 99.50th=[ 59507], 99.90th=[ 88605], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 216, per=25.22%, avg=125.35, stdev=38.82, samples=95 iops : min= 1, max= 54, avg=30.92, stdev= 9.73, samples=95 write: IOPS=32, BW=131KiB/s (134kB/s)(6296KiB/48222msec); 0 zone resets clat (usec): min=541, max=158885, avg=14398.42, stdev=12853.56 lat (usec): min=541, max=158886, avg=14399.36, stdev=12853.59 clat percentiles (usec): | 1.00th=[ 848], 5.00th=[ 1827], 10.00th=[ 2474], 20.00th=[ 3621], | 30.00th=[ 5407], 40.00th=[ 8586], 50.00th=[ 11338], 60.00th=[ 14615], | 70.00th=[ 18482], 80.00th=[ 22938], 90.00th=[ 30278], 95.00th=[ 38011], | 99.00th=[ 55837], 99.50th=[ 62653], 99.90th=[120062], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 40, max= 245, per=25.53%, avg=132.99, stdev=37.94, samples=94 iops : min= 10, max= 61, avg=32.83, stdev= 9.51, samples=94 lat (usec) : 50=0.33%, 100=0.59%, 250=1.30%, 500=0.10%, 750=0.36% lat (usec) : 1000=0.59% lat (msec) : 2=2.28%, 4=8.43%, 10=23.18%, 20=36.78%, 50=24.74% lat (msec) : 100=1.24%, 250=0.07%, 2000=0.03% cpu : usr=0.10%, sys=25.36%, ctx=8054, 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=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=159825: Tue Sep 8 14:07:51 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(5940KiB/48173msec) clat (usec): min=39, max=112690, avg=15945.37, stdev=10714.72 lat (usec): min=39, max=112691, avg=15946.16, stdev=10714.77 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 243], 10.00th=[ 6652], 20.00th=[ 8586], | 30.00th=[ 10028], 40.00th=[ 11600], 50.00th=[ 13829], 60.00th=[ 16057], | 70.00th=[ 19006], 80.00th=[ 22152], 90.00th=[ 27657], 95.00th=[ 32637], | 99.00th=[ 55313], 99.50th=[ 66847], 99.90th=[108528], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 7, max= 216, per=24.98%, avg=124.15, stdev=36.02, samples=94 iops : min= 1, max= 54, avg=30.62, stdev= 9.02, samples=94 write: IOPS=32, BW=132KiB/s (135kB/s)(6348KiB/48173msec); 0 zone resets clat (usec): min=603, max=1154.9k, avg=15253.58, stdev=31429.84 lat (usec): min=603, max=1154.9k, avg=15256.31, stdev=31429.33 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 1745], 10.00th=[ 2376], | 20.00th=[ 3261], 30.00th=[ 5276], 40.00th=[ 8848], | 50.00th=[ 11469], 60.00th=[ 14746], 70.00th=[ 18744], | 80.00th=[ 23200], 90.00th=[ 31327], 95.00th=[ 38011], | 99.00th=[ 56886], 99.50th=[ 71828], 99.90th=[ 158335], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 55, max= 215, per=25.64%, avg=133.59, stdev=38.58, samples=93 iops : min= 13, max= 53, avg=32.98, stdev= 9.66, samples=93 lat (usec) : 50=0.10%, 100=0.75%, 250=1.60%, 500=0.10%, 750=0.49% lat (usec) : 1000=0.78% lat (msec) : 2=2.31%, 4=9.34%, 10=22.17%, 20=35.87%, 50=25.10% lat (msec) : 100=1.24%, 250=0.13%, 2000=0.03% cpu : usr=0.12%, sys=25.26%, ctx=7989, 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=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=159828: Tue Sep 8 14:07:51 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(6028KiB/47803msec) clat (usec): min=29, max=111908, avg=15954.82, stdev=10236.25 lat (usec): min=30, max=111909, avg=15955.88, stdev=10236.18 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 176], 10.00th=[ 6587], 20.00th=[ 8586], | 30.00th=[ 10159], 40.00th=[ 11994], 50.00th=[ 13960], 60.00th=[ 16057], | 70.00th=[ 18744], 80.00th=[ 22414], 90.00th=[ 28181], 95.00th=[ 34341], | 99.00th=[ 53216], 99.50th=[ 59507], 99.90th=[ 74974], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 39, max= 224, per=25.86%, avg=128.51, stdev=37.37, samples=93 iops : min= 9, max= 56, avg=31.71, stdev= 9.37, samples=93 write: IOPS=32, BW=131KiB/s (134kB/s)(6260KiB/47803msec); 0 zone resets clat (usec): min=582, max=1154.0k, avg=15003.40, stdev=31518.21 lat (usec): min=583, max=1154.0k, avg=15004.91, stdev=31518.61 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 1647], 10.00th=[ 2409], | 20.00th=[ 3392], 30.00th=[ 5276], 40.00th=[ 8291], | 50.00th=[ 11469], 60.00th=[ 14353], 70.00th=[ 17957], | 80.00th=[ 23200], 90.00th=[ 30540], 95.00th=[ 37487], | 99.00th=[ 55837], 99.50th=[ 73925], 99.90th=[ 108528], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 40, max= 248, per=25.62%, avg=133.51, stdev=37.10, samples=93 iops : min= 10, max= 62, avg=32.96, stdev= 9.24, samples=93 lat (usec) : 50=0.29%, 100=1.17%, 250=1.24%, 500=0.03%, 750=0.49% lat (usec) : 1000=0.59% lat (msec) : 2=2.38%, 4=8.63%, 10=22.46%, 20=36.95%, 50=24.41% lat (msec) : 100=1.17%, 250=0.16%, 2000=0.03% cpu : usr=0.12%, sys=25.37%, ctx=8082, 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=159830: Tue Sep 8 14:07:51 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(6052KiB/48242msec) clat (usec): min=27, max=161803, avg=15744.14, stdev=10184.32 lat (usec): min=27, max=161804, avg=15744.90, stdev=10184.36 clat percentiles (usec): | 1.00th=[ 75], 5.00th=[ 174], 10.00th=[ 6456], 20.00th=[ 8160], | 30.00th=[ 10028], 40.00th=[ 11731], 50.00th=[ 14091], 60.00th=[ 16450], | 70.00th=[ 19006], 80.00th=[ 22676], 90.00th=[ 28443], 95.00th=[ 31851], | 99.00th=[ 44827], 99.50th=[ 53740], 99.90th=[ 91751], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 47, max= 199, per=25.70%, avg=127.72, stdev=35.56, samples=94 iops : min= 11, max= 49, avg=31.51, stdev= 8.90, samples=94 write: IOPS=32, BW=129KiB/s (132kB/s)(6236KiB/48242msec); 0 zone resets clat (usec): min=583, max=1132.0k, avg=15479.07, stdev=31410.71 lat (usec): min=584, max=1132.0k, avg=15480.23, stdev=31410.72 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 1860], 10.00th=[ 2507], | 20.00th=[ 3556], 30.00th=[ 5407], 40.00th=[ 8717], | 50.00th=[ 11994], 60.00th=[ 14877], 70.00th=[ 18482], | 80.00th=[ 23200], 90.00th=[ 31065], 95.00th=[ 38011], | 99.00th=[ 63177], 99.50th=[ 77071], 99.90th=[ 147850], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 14, max= 255, per=24.91%, avg=129.80, stdev=35.56, samples=95 iops : min= 3, max= 63, avg=32.03, stdev= 8.91, samples=95 lat (usec) : 50=0.29%, 100=0.98%, 250=1.63%, 750=0.26%, 1000=0.49% lat (msec) : 2=2.18%, 4=8.53%, 10=22.92%, 20=36.04%, 50=25.39% lat (msec) : 100=1.11%, 250=0.16%, 2000=0.03% cpu : usr=0.12%, sys=25.12%, ctx=8139, 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=498KiB/s (510kB/s), 123KiB/s-126KiB/s (126kB/s-129kB/s), io=23.4MiB (24.6MB), run=47803-48242msec WRITE: bw=521KiB/s (534kB/s), 129KiB/s-132KiB/s (132kB/s-135kB/s), io=24.6MiB (25.7MB), run=47803-48242msec rand-rw: (groupid=0, jobs=1): err= 0: pid=159824: Tue Sep 8 14:09:13 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5992KiB/129331msec) clat (msec): min=3, max=1174, avg=21.40, stdev=33.41 lat (msec): min=3, max=1174, avg=21.40, stdev=33.41 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 39], 95.00th=[ 47], | 99.00th=[ 82], 99.50th=[ 100], 99.90th=[ 169], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 128, per=25.93%, avg=47.72, stdev=24.16, samples=248 iops : min= 1, max= 32, avg=11.52, stdev= 6.08, samples=248 write: IOPS=12, BW=48.7KiB/s (49.8kB/s)(6296KiB/129331msec); 0 zone resets clat (msec): min=16, max=471, avg=61.60, stdev=32.89 lat (msec): min=16, max=471, avg=61.61, stdev=32.89 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 55], 60.00th=[ 61], | 70.00th=[ 69], 80.00th=[ 80], 90.00th=[ 97], 95.00th=[ 122], | 99.00th=[ 169], 99.50th=[ 207], 99.90th=[ 388], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 88, per=25.24%, avg=48.71, stdev=15.89, samples=255 iops : min= 1, max= 22, avg=11.77, stdev= 4.06, samples=255 lat (msec) : 4=0.03%, 10=10.09%, 20=19.92%, 50=38.41%, 100=26.53% lat (msec) : 250=4.85%, 500=0.13%, 2000=0.03% cpu : usr=0.07%, sys=4.39%, ctx=5689, 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=159826: Tue Sep 8 14:09:13 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5940KiB/129880msec) clat (msec): min=4, max=1134, avg=21.65, stdev=32.91 lat (msec): min=4, max=1134, avg=21.65, stdev=32.91 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 30], 90.00th=[ 39], 95.00th=[ 48], | 99.00th=[ 80], 99.50th=[ 97], 99.90th=[ 222], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 6, max= 111, per=25.06%, avg=46.11, stdev=22.19, samples=254 iops : min= 1, max= 27, avg=11.12, stdev= 5.61, samples=254 write: IOPS=12, BW=48.9KiB/s (50.0kB/s)(6348KiB/129880msec); 0 zone resets clat (msec): min=18, max=444, avg=61.38, stdev=33.92 lat (msec): min=18, max=444, avg=61.38, stdev=33.92 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 28], 10.00th=[ 31], 20.00th=[ 38], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 54], 60.00th=[ 59], | 70.00th=[ 68], 80.00th=[ 80], 90.00th=[ 100], 95.00th=[ 123], | 99.00th=[ 188], 99.50th=[ 224], 99.90th=[ 292], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 15, max= 96, per=25.32%, avg=48.87, stdev=16.84, samples=256 iops : min= 3, max= 24, avg=11.81, stdev= 4.30, samples=256 lat (msec) : 10=10.45%, 20=18.91%, 50=39.39%, 100=25.98%, 250=5.08% lat (msec) : 500=0.16%, 2000=0.03% cpu : usr=0.07%, sys=4.28%, ctx=5682, 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=159827: Tue Sep 8 14:09:13 2026 read: IOPS=11, BW=46.6KiB/s (47.7kB/s)(6028KiB/129361msec) clat (msec): min=4, max=213, avg=21.10, stdev=16.01 lat (msec): min=4, max=213, avg=21.10, stdev=16.01 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 30], 90.00th=[ 40], 95.00th=[ 50], | 99.00th=[ 78], 99.50th=[ 92], 99.90th=[ 205], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 7, max= 120, per=25.66%, avg=47.21, stdev=25.52, samples=252 iops : min= 1, max= 30, avg=11.39, stdev= 6.45, samples=252 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(6260KiB/129361msec); 0 zone resets clat (msec): min=16, max=1154, avg=62.14, stdev=44.33 lat (msec): min=16, max=1154, avg=62.15, stdev=44.33 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 49], 50.00th=[ 54], 60.00th=[ 61], | 70.00th=[ 68], 80.00th=[ 80], 90.00th=[ 101], 95.00th=[ 126], | 99.00th=[ 184], 99.50th=[ 228], 99.90th=[ 464], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 88, per=25.11%, avg=48.45, stdev=16.62, samples=255 iops : min= 1, max= 22, avg=11.71, stdev= 4.23, samples=255 lat (msec) : 10=10.74%, 20=19.21%, 50=39.10%, 100=25.72%, 250=5.11% lat (msec) : 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=4.38%, ctx=5684, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159829: Tue Sep 8 14:09:13 2026 read: IOPS=11, BW=47.0KiB/s (48.2kB/s)(6052KiB/128693msec) clat (msec): min=3, max=266, avg=20.90, stdev=16.66 lat (msec): min=3, max=266, avg=20.90, stdev=16.66 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 39], 95.00th=[ 50], | 99.00th=[ 82], 99.50th=[ 95], 99.90th=[ 148], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 7, max= 111, per=25.91%, avg=47.68, stdev=24.67, samples=250 iops : min= 1, max= 27, avg=11.50, stdev= 6.24, samples=250 write: IOPS=12, BW=48.5KiB/s (49.6kB/s)(6236KiB/128693msec); 0 zone resets clat (msec): min=18, max=1147, avg=62.07, stdev=43.32 lat (msec): min=18, max=1147, avg=62.07, stdev=43.32 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 54], 60.00th=[ 61], | 70.00th=[ 68], 80.00th=[ 79], 90.00th=[ 100], 95.00th=[ 121], | 99.00th=[ 182], 99.50th=[ 264], 99.90th=[ 422], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 15, max= 88, per=25.13%, avg=48.51, stdev=16.09, samples=253 iops : min= 3, max= 22, avg=11.71, stdev= 4.13, samples=253 lat (msec) : 4=0.03%, 10=11.00%, 20=19.56%, 50=37.79%, 100=26.53% lat (msec) : 250=4.75%, 500=0.29%, 2000=0.03% cpu : usr=0.07%, sys=4.43%, ctx=5758, 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=185KiB/s (189kB/s), 45.7KiB/s-47.0KiB/s (46.8kB/s-48.2kB/s), io=23.4MiB (24.6MB), run=128693-129880msec WRITE: bw=194KiB/s (198kB/s), 48.4KiB/s-48.9KiB/s (49.6kB/s-50.0kB/s), io=24.6MiB (25.7MB), run=128693-129880msec 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=159865: Tue Sep 8 14:09:36 2026 read: IOPS=20, BW=333KiB/s (341kB/s)(5920KiB/17794msec) clat (usec): min=41, max=111251, avg=23556.17, stdev=18481.95 lat (usec): min=42, max=111252, avg=23557.99, stdev=18481.91 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 74], 20.00th=[ 8029], | 30.00th=[ 13960], 40.00th=[ 17957], 50.00th=[ 21365], 60.00th=[ 25035], | 70.00th=[ 30802], 80.00th=[ 36439], 90.00th=[ 45351], 95.00th=[ 54264], | 99.00th=[ 83362], 99.50th=[ 94897], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 127, max= 637, per=24.37%, avg=328.00, stdev=99.41, samples=34 iops : min= 7, max= 39, avg=19.74, stdev= 6.35, samples=34 write: IOPS=22, BW=358KiB/s (366kB/s)(6368KiB/17794msec); 0 zone resets clat (usec): min=1225, max=174921, avg=22736.85, stdev=25703.32 lat (usec): min=1227, max=174923, avg=22739.26, stdev=25703.85 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1958], 10.00th=[ 2606], 20.00th=[ 3687], | 30.00th=[ 5669], 40.00th=[ 7898], 50.00th=[ 13304], 60.00th=[ 19792], | 70.00th=[ 28443], 80.00th=[ 38536], 90.00th=[ 53216], 95.00th=[ 70779], | 99.00th=[125305], 99.50th=[173016], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 159, max= 603, per=25.24%, avg=357.41, stdev=115.58, samples=34 iops : min= 9, max= 37, avg=21.59, stdev= 7.23, samples=34 lat (usec) : 50=0.78%, 100=5.86%, 250=1.82%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=3.65%, 4=7.42%, 10=13.80%, 20=19.14%, 50=36.59% lat (msec) : 100=9.38%, 250=0.91% cpu : usr=0.11%, sys=11.83%, ctx=1633, 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=159866: Tue Sep 8 14:09:36 2026 read: IOPS=20, BW=324KiB/s (332kB/s)(5744KiB/17724msec) clat (usec): min=35, max=156352, avg=25639.78, stdev=20819.07 lat (usec): min=36, max=156353, avg=25641.78, stdev=20819.42 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 76], 20.00th=[ 8848], | 30.00th=[ 15533], 40.00th=[ 20055], 50.00th=[ 23987], 60.00th=[ 27657], | 70.00th=[ 32637], 80.00th=[ 39060], 90.00th=[ 46924], 95.00th=[ 58459], | 99.00th=[111674], 99.50th=[133694], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 63, max= 507, per=24.22%, avg=325.94, stdev=101.99, samples=34 iops : min= 3, max= 31, avg=19.62, stdev= 6.39, samples=34 write: IOPS=23, BW=369KiB/s (378kB/s)(6544KiB/17724msec); 0 zone resets clat (usec): min=1103, max=126313, avg=20745.87, stdev=22260.80 lat (usec): min=1105, max=126314, avg=20749.22, stdev=22260.51 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1844], 10.00th=[ 2278], 20.00th=[ 3359], | 30.00th=[ 4686], 40.00th=[ 6915], 50.00th=[ 11994], 60.00th=[ 18482], | 70.00th=[ 27919], 80.00th=[ 36439], 90.00th=[ 50070], 95.00th=[ 66847], | 99.00th=[ 96994], 99.50th=[110625], 99.90th=[126354], 99.95th=[126354], | 99.99th=[126354] bw ( KiB/s): min= 126, max= 766, per=25.92%, avg=367.03, stdev=136.40, samples=34 iops : min= 7, max= 47, avg=22.18, stdev= 8.59, samples=34 lat (usec) : 50=0.52%, 100=5.99%, 250=2.34%, 500=0.13% lat (msec) : 2=3.65%, 4=8.85%, 10=13.15%, 20=17.06%, 50=39.45% lat (msec) : 100=7.81%, 250=1.04% cpu : usr=0.10%, sys=11.68%, ctx=1580, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159867: Tue Sep 8 14:09:36 2026 read: IOPS=22, BW=355KiB/s (363kB/s)(6256KiB/17647msec) clat (usec): min=21, max=152933, avg=24015.65, stdev=20272.59 lat (usec): min=21, max=152934, avg=24016.80, stdev=20272.64 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 155], | 30.00th=[ 14615], 40.00th=[ 18220], 50.00th=[ 22414], 60.00th=[ 26346], | 70.00th=[ 31327], 80.00th=[ 38011], 90.00th=[ 48497], 95.00th=[ 54789], | 99.00th=[ 89654], 99.50th=[133694], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 159, max= 574, per=26.25%, avg=353.38, stdev=127.50, samples=34 iops : min= 9, max= 35, avg=21.35, stdev= 8.11, samples=34 write: IOPS=21, BW=342KiB/s (350kB/s)(6032KiB/17647msec); 0 zone resets clat (usec): min=1100, max=143460, avg=21834.22, stdev=21808.30 lat (usec): min=1102, max=143463, avg=21841.89, stdev=21810.39 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1778], 10.00th=[ 2311], 20.00th=[ 3851], | 30.00th=[ 5604], 40.00th=[ 8979], 50.00th=[ 13960], 60.00th=[ 20841], | 70.00th=[ 28967], 80.00th=[ 38536], 90.00th=[ 54789], 95.00th=[ 64226], | 99.00th=[ 90702], 99.50th=[106431], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 191, max= 510, per=23.76%, avg=336.41, stdev=74.88, samples=34 iops : min= 11, max= 31, avg=20.26, stdev= 4.75, samples=34 lat (usec) : 50=1.95%, 100=6.25%, 250=2.21%, 500=0.13%, 750=0.39% lat (msec) : 2=4.04%, 4=6.90%, 10=11.46%, 20=18.62%, 50=37.89% lat (msec) : 100=9.51%, 250=0.65% cpu : usr=0.12%, sys=11.92%, ctx=1656, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159868: Tue Sep 8 14:09:36 2026 read: IOPS=21, BW=344KiB/s (352kB/s)(6032KiB/17560msec) clat (usec): min=44, max=160592, avg=24809.80, stdev=20876.69 lat (usec): min=45, max=161234, avg=24812.76, stdev=20887.65 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 153], | 30.00th=[ 13435], 40.00th=[ 17957], 50.00th=[ 22676], 60.00th=[ 27132], | 70.00th=[ 32900], 80.00th=[ 41157], 90.00th=[ 51643], 95.00th=[ 62653], | 99.00th=[ 86508], 99.50th=[ 99091], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 189, max= 734, per=25.40%, avg=341.85, stdev=106.58, samples=34 iops : min= 11, max= 45, avg=20.59, stdev= 6.72, samples=34 write: IOPS=22, BW=356KiB/s (365kB/s)(6256KiB/17560msec); 0 zone resets clat (usec): min=986, max=130907, avg=20885.42, stdev=22545.96 lat (usec): min=988, max=138956, avg=20922.72, stdev=22698.87 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1778], 10.00th=[ 2376], 20.00th=[ 3556], | 30.00th=[ 5145], 40.00th=[ 7242], 50.00th=[ 11600], 60.00th=[ 16057], | 70.00th=[ 26346], 80.00th=[ 36963], 90.00th=[ 55837], 95.00th=[ 67634], | 99.00th=[ 89654], 99.50th=[127402], 99.90th=[130548], 99.95th=[130548], | 99.99th=[130548] bw ( KiB/s): min= 95, max= 542, per=25.15%, avg=356.18, stdev=98.17, samples=34 iops : min= 5, max= 33, avg=21.50, stdev= 6.17, samples=34 lat (usec) : 50=0.65%, 100=7.81%, 250=1.82%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=4.30%, 4=7.94%, 10=12.89%, 20=17.97%, 50=34.51% lat (msec) : 100=10.94%, 250=0.52% cpu : usr=0.13%, sys=11.83%, ctx=1583, 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=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=1346KiB/s (1378kB/s), 324KiB/s-355KiB/s (332kB/s-363kB/s), io=23.4MiB (24.5MB), run=17560-17794msec WRITE: bw=1416KiB/s (1450kB/s), 342KiB/s-369KiB/s (350kB/s-378kB/s), io=24.6MiB (25.8MB), run=17560-17794msec rand-rw: (groupid=0, jobs=1): err= 0: pid=159860: Tue Sep 8 14:09:54 2026 read: IOPS=10, BW=167KiB/s (171kB/s)(5920KiB/35540msec) clat (msec): min=5, max=157, avg=22.60, stdev=25.90 lat (msec): min=5, max=157, avg=22.60, stdev=25.90 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 55], 95.00th=[ 84], | 99.00th=[ 136], 99.50th=[ 155], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 31, max= 448, per=24.80%, avg=166.90, stdev=108.29, samples=69 iops : min= 1, max= 28, avg= 9.80, stdev= 6.88, samples=69 write: IOPS=11, BW=179KiB/s (183kB/s)(6368KiB/35540msec); 0 zone resets clat (msec): min=22, max=300, avg=68.07, stdev=39.71 lat (msec): min=22, max=300, avg=68.08, stdev=39.71 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 31], 10.00th=[ 34], 20.00th=[ 40], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 57], 60.00th=[ 64], | 70.00th=[ 71], 80.00th=[ 90], 90.00th=[ 125], 95.00th=[ 148], | 99.00th=[ 220], 99.50th=[ 257], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 62, max= 320, per=25.08%, avg=177.80, stdev=89.60, samples=70 iops : min= 3, max= 20, avg=10.49, stdev= 5.70, samples=70 lat (msec) : 10=14.58%, 20=20.31%, 50=28.39%, 100=27.08%, 250=9.38% lat (msec) : 500=0.26% cpu : usr=0.11%, sys=2.74%, ctx=1361, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159861: Tue Sep 8 14:09:54 2026 read: IOPS=10, BW=162KiB/s (166kB/s)(5744KiB/35533msec) clat (msec): min=4, max=148, avg=20.66, stdev=22.08 lat (msec): min=4, max=148, avg=20.66, stdev=22.08 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 19], 80.00th=[ 28], 90.00th=[ 48], 95.00th=[ 66], | 99.00th=[ 114], 99.50th=[ 115], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 31, max= 576, per=24.88%, avg=167.46, stdev=109.25, samples=67 iops : min= 1, max= 36, avg= 9.84, stdev= 6.92, samples=67 write: IOPS=11, BW=184KiB/s (189kB/s)(6544KiB/35533msec); 0 zone resets clat (msec): min=20, max=255, avg=68.64, stdev=41.20 lat (msec): min=20, max=255, avg=68.64, stdev=41.20 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 30], 10.00th=[ 34], 20.00th=[ 39], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 55], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 94], 90.00th=[ 130], 95.00th=[ 155], | 99.00th=[ 203], 99.50th=[ 215], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 31, max= 352, per=25.72%, avg=182.34, stdev=93.76, samples=70 iops : min= 1, max= 22, avg=10.77, stdev= 5.97, samples=70 lat (msec) : 10=16.93%, 20=17.19%, 50=31.12%, 100=24.61%, 250=10.03% lat (msec) : 500=0.13% cpu : usr=0.10%, sys=2.72%, ctx=1423, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159862: Tue Sep 8 14:09:54 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(6256KiB/34545msec) clat (msec): min=4, max=186, avg=20.65, stdev=23.26 lat (msec): min=4, max=186, avg=20.66, stdev=23.26 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 26], 90.00th=[ 46], 95.00th=[ 66], | 99.00th=[ 129], 99.50th=[ 155], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 31, max= 640, per=27.48%, avg=184.96, stdev=142.59, samples=67 iops : min= 1, max= 40, avg=10.93, stdev= 8.99, samples=67 write: IOPS=10, BW=175KiB/s (179kB/s)(6032KiB/34545msec); 0 zone resets clat (msec): min=22, max=285, avg=69.89, stdev=42.70 lat (msec): min=22, max=285, avg=69.89, stdev=42.70 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 29], 10.00th=[ 35], 20.00th=[ 40], | 30.00th=[ 45], 40.00th=[ 50], 50.00th=[ 55], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 97], 90.00th=[ 133], 95.00th=[ 165], | 99.00th=[ 211], 99.50th=[ 251], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 63, max= 352, per=24.44%, avg=173.28, stdev=89.25, samples=68 iops : min= 3, max= 22, avg=10.19, stdev= 5.71, samples=68 lat (msec) : 10=17.84%, 20=20.18%, 50=29.56%, 100=22.14%, 250=10.03% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=2.80%, ctx=1446, 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=159863: Tue Sep 8 14:09:54 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(6032KiB/35232msec) clat (msec): min=5, max=186, avg=21.63, stdev=23.18 lat (msec): min=5, max=186, avg=21.63, stdev=23.18 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 32], 90.00th=[ 46], 95.00th=[ 73], | 99.00th=[ 132], 99.50th=[ 148], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 31, max= 446, per=25.55%, avg=171.97, stdev=106.50, samples=68 iops : min= 1, max= 27, avg=10.13, stdev= 6.73, samples=68 write: IOPS=11, BW=178KiB/s (182kB/s)(6256KiB/35232msec); 0 zone resets clat (msec): min=22, max=282, avg=68.94, stdev=39.70 lat (msec): min=22, max=282, avg=68.95, stdev=39.70 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 30], 10.00th=[ 35], 20.00th=[ 41], | 30.00th=[ 45], 40.00th=[ 50], 50.00th=[ 55], 60.00th=[ 62], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 124], 95.00th=[ 153], | 99.00th=[ 205], 99.50th=[ 211], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 62, max= 351, per=24.81%, avg=175.87, stdev=88.65, samples=69 iops : min= 3, max= 21, avg=10.36, stdev= 5.67, samples=69 lat (msec) : 10=16.80%, 20=17.97%, 50=31.12%, 100=23.83%, 250=10.16% lat (msec) : 500=0.13% cpu : usr=0.11%, sys=2.74%, ctx=1446, 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=674KiB/s (690kB/s), 162KiB/s-181KiB/s (166kB/s-185kB/s), io=23.4MiB (24.5MB), run=34545-35540msec WRITE: bw=709KiB/s (726kB/s), 175KiB/s-184KiB/s (179kB/s-189kB/s), io=24.6MiB (25.8MB), run=34545-35540msec 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=159881: Tue Sep 8 14:10:04 2026 read: IOPS=1, BW=1750KiB/s (1792kB/s)(7168KiB/4097msec) clat (msec): min=53, max=381, avg=143.01, stdev=112.62 lat (msec): min=53, max=381, avg=143.01, stdev=112.62 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 69], | 30.00th=[ 82], 40.00th=[ 82], 50.00th=[ 103], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 159], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 1851, max= 5636, per=86.06%, avg=3855.33, stdev=1902.39, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1250KiB/s (1280kB/s)(5120KiB/4097msec); 0 zone resets clat (msec): min=121, max=1636, avg=604.92, stdev=617.93 lat (msec): min=121, max=1636, avg=605.05, stdev=617.92 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 122], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 1878, max= 4023, per=42.07%, avg=2638.67, stdev=1200.82, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=41.67%, 500=8.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=5.59%, ctx=74, 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=159882: Tue Sep 8 14:10:04 2026 read: IOPS=0, BW=448KiB/s (459kB/s)(2048KiB/4571msec) clat (msec): min=95, max=337, avg=216.50, stdev=171.68 lat (msec): min=95, max=337, avg=216.50, stdev=171.68 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 95], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1878, max= 2011, per=43.40%, avg=1944.50, stdev=94.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2240KiB/s (2294kB/s)(10.0MiB/4571msec); 0 zone resets clat (msec): min=101, max=1459, avg=412.45, stdev=446.18 lat (msec): min=102, max=1459, avg=412.56, stdev=446.18 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 106], | 30.00th=[ 116], 40.00th=[ 120], 50.00th=[ 142], 60.00th=[ 218], | 70.00th=[ 493], 80.00th=[ 510], 90.00th=[ 869], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 1851, max= 4079, per=43.80%, avg=2747.40, stdev=1077.02, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.57%, ctx=105, 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=159883: Tue Sep 8 14:10:04 2026 read: IOPS=1, BW=1595KiB/s (1633kB/s)(6144KiB/3853msec) clat (msec): min=123, max=423, avg=279.05, stdev=129.11 lat (msec): min=123, max=423, avg=279.05, stdev=129.11 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 334], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2011, max= 4079, per=75.31%, avg=3373.67, stdev=1180.35, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1595KiB/s (1633kB/s)(6144KiB/3853msec); 0 zone resets clat (msec): min=73, max=1041, avg=352.92, stdev=365.95 lat (msec): min=73, max=1041, avg=353.02, stdev=365.95 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 201], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 1851, max= 5626, per=45.96%, avg=2882.75, stdev=1830.76, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=5.30%, ctx=61, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159884: Tue Sep 8 14:10:04 2026 read: IOPS=1, BW=1170KiB/s (1198kB/s)(5120KiB/4375msec) clat (msec): min=44, max=733, avg=305.75, stdev=281.44 lat (msec): min=44, max=733, avg=305.75, stdev=281.44 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 45], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 3703, max= 4031, per=86.32%, avg=3867.00, stdev=231.93, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1638KiB/s (1678kB/s)(7168KiB/4375msec); 0 zone resets clat (msec): min=111, max=1359, avg=391.54, stdev=453.39 lat (msec): min=111, max=1360, avg=391.66, stdev=453.38 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 131], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 201], 80.00th=[ 567], 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= 2035, max= 5575, per=51.30%, avg=3217.67, stdev=2041.51, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.96%, ctx=92, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4480KiB/s (4588kB/s), 448KiB/s-1750KiB/s (459kB/s-1792kB/s), io=20.0MiB (20.0MB), run=3853-4571msec WRITE: bw=6273KiB/s (6423kB/s), 1250KiB/s-2240KiB/s (1280kB/s-2294kB/s), io=28.0MiB (29.4MB), run=3853-4571msec rand-rw: (groupid=0, jobs=1): err= 0: pid=159886: Tue Sep 8 14:10:04 2026 read: IOPS=2, BW=2110KiB/s (2161kB/s)(7168KiB/3397msec) clat (usec): min=1047, max=1062.9k, avg=261178.87, stdev=366138.01 lat (usec): min=1049, max=1062.9k, avg=261180.22, stdev=366137.86 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1045], 10.00th=[ 1045], | 20.00th=[ 1303], 30.00th=[ 147850], 40.00th=[ 147850], | 50.00th=[ 156238], 60.00th=[ 210764], 70.00th=[ 210764], | 80.00th=[ 246416], 90.00th=[1061159], 95.00th=[1061159], | 99.00th=[1061159], 99.50th=[1061159], 99.90th=[1061159], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 1939, max= 4096, per=58.02%, avg=2733.75, stdev=995.25, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.26, samples=4 write: IOPS=1, BW=1507KiB/s (1543kB/s)(5120KiB/3397msec); 0 zone resets clat (msec): min=111, max=636, avg=313.39, stdev=220.26 lat (msec): min=111, max=636, avg=313.49, stdev=220.26 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 430], 80.00th=[ 430], 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= 2048, max= 3878, per=40.29%, avg=2658.00, stdev=1056.55, samples=3 iops : min= 2, max= 3, avg= 2.33, stdev= 0.58, samples=3 lat (msec) : 2=16.67%, 250=50.00%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=26.21%, ctx=509, 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=159887: Tue Sep 8 14:10:04 2026 read: IOPS=0, BW=471KiB/s (483kB/s)(2048KiB/4346msec) clat (usec): min=820, max=422628, avg=211724.72, stdev=298263.17 lat (usec): min=822, max=422631, avg=211726.62, stdev=298264.09 clat percentiles (usec): | 1.00th=[ 824], 5.00th=[ 824], 10.00th=[ 824], 20.00th=[ 824], | 30.00th=[ 824], 40.00th=[ 824], 50.00th=[ 824], 60.00th=[421528], | 70.00th=[421528], 80.00th=[421528], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 1464, max= 1939, per=36.11%, avg=1701.50, stdev=335.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2356KiB/s (2413kB/s)(10.0MiB/4346msec); 0 zone resets clat (msec): min=118, max=1195, avg=391.88, stdev=356.83 lat (msec): min=118, max=1195, avg=391.99, stdev=356.81 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 140], | 30.00th=[ 142], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 236], | 70.00th=[ 313], 80.00th=[ 592], 90.00th=[ 785], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1939, max= 6144, per=46.02%, avg=3035.83, stdev=1739.79, samples=6 iops : min= 1, max= 6, avg= 2.50, stdev= 2.07, samples=6 lat (usec) : 1000=8.33% lat (msec) : 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=20.58%, ctx=350, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=159888: Tue Sep 8 14:10:04 2026 read: IOPS=1, BW=1650KiB/s (1689kB/s)(6144KiB/3724msec) clat (msec): min=13, max=219, avg=131.98, stdev=93.83 lat (msec): min=13, max=219, avg=131.98, stdev=93.83 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 14], 10.00th=[ 14], 20.00th=[ 29], | 30.00th=[ 29], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 194], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 220], 95.00th=[ 220], | 99.00th=[ 220], 99.50th=[ 220], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 1939, max= 4096, per=70.88%, avg=3339.67, stdev=1214.30, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1650KiB/s (1689kB/s)(6144KiB/3724msec); 0 zone resets clat (msec): min=175, max=1473, avg=488.36, stdev=514.15 lat (msec): min=175, max=1474, avg=488.45, stdev=514.15 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 234], | 70.00th=[ 642], 80.00th=[ 642], 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= 1992, max= 4096, per=45.50%, avg=3001.67, stdev=1054.55, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 20=8.33%, 50=8.33%, 250=66.67%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=24.09%, ctx=262, 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=159889: Tue Sep 8 14:10:04 2026 read: IOPS=1, BW=1340KiB/s (1372kB/s)(5120KiB/3821msec) clat (usec): min=607, max=343004, avg=122707.12, stdev=142374.33 lat (usec): min=608, max=343005, avg=122708.37, stdev=142373.88 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 1418], 40.00th=[ 1418], 50.00th=[ 98042], 60.00th=[ 98042], | 70.00th=[170918], 80.00th=[170918], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 3878, max= 3984, per=83.43%, avg=3931.00, stdev=74.95, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1876KiB/s (1921kB/s)(7168KiB/3821msec); 0 zone resets clat (msec): min=175, max=1413, avg=457.86, stdev=438.71 lat (msec): min=175, max=1413, avg=457.97, stdev=438.71 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 209], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 266], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 542], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 1452, max= 3992, per=40.67%, avg=2683.00, stdev=1212.25, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=23.77%, ctx=419, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4712KiB/s (4825kB/s), 471KiB/s-2110KiB/s (483kB/s-2161kB/s), io=20.0MiB (20.0MB), run=3397-4346msec WRITE: bw=6597KiB/s (6756kB/s), 1507KiB/s-2356KiB/s (1543kB/s-2413kB/s), io=28.0MiB (29.4MB), run=3397-4346msec 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=159895: Tue Sep 8 14:10:12 2026 read: IOPS=1, BW=5815KiB/s (5955kB/s)(12.0MiB/2113msec) clat (msec): min=651, max=726, avg=679.38, stdev=40.95 lat (msec): min=651, max=726, avg=679.38, stdev=40.95 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8031, max= 8062, per=100.00%, avg=8046.50, stdev=21.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=25.85%, ctx=808, 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=159897: Tue Sep 8 14:10:12 2026 read: IOPS=0, BW=1604KiB/s (1643kB/s)(4096KiB/2553msec) clat (nsec): min=652550k, max=652550k, avg=652549708.00, stdev= 0.00 lat (nsec): min=652551k, max=652551k, avg=652550885.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3209KiB/s (3286kB/s)(8192KiB/2553msec); 0 zone resets clat (msec): min=576, max=1184, avg=880.26, stdev=429.60 lat (msec): min=577, max=1184, avg=881.14, stdev=428.89 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8031, max= 8031, per=62.57%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.04%, sys=11.87%, ctx=235, 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=159899: Tue Sep 8 14:10:12 2026 write: IOPS=1, BW=4880KiB/s (4997kB/s)(12.0MiB/2518msec); 0 zone resets clat (msec): min=215, max=1203, avg=813.25, stdev=525.47 lat (msec): min=216, max=1204, avg=813.72, stdev=525.69 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8031, max= 8031, per=62.57%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=10.93%, ctx=81, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=159901: Tue Sep 8 14:10:12 2026 write: IOPS=1, BW=6564KiB/s (6722kB/s)(12.0MiB/1872msec); 0 zone resets clat (msec): min=198, max=1224, avg=610.43, stdev=541.91 lat (msec): min=199, max=1225, avg=611.01, stdev=541.98 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 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=11100, max=11100, per=86.48%, avg=11100.00, 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%, 2000=33.33% cpu : usr=0.05%, sys=11.65%, ctx=69, 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=6418KiB/s (6572kB/s), 1604KiB/s-5815KiB/s (1643kB/s-5955kB/s), io=16.0MiB (16.8MB), run=2113-2553msec WRITE: bw=12.5MiB/s (13.1MB/s), 3209KiB/s-6564KiB/s (3286kB/s-6722kB/s), io=32.0MiB (33.6MB), run=1872-2553msec rand-rw: (groupid=0, jobs=1): err= 0: pid=159896: Tue Sep 8 14:10:13 2026 read: IOPS=1, BW=5469KiB/s (5600kB/s)(12.0MiB/2247msec) clat (msec): min=603, max=786, avg=715.02, stdev=97.96 lat (msec): min=603, max=786, avg=715.02, stdev=97.96 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7684, max= 7846, per=100.00%, avg=7765.00, stdev=114.55, 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=8.64%, ctx=59, 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=159898: Tue Sep 8 14:10:13 2026 read: IOPS=0, BW=2066KiB/s (2115kB/s)(4096KiB/1983msec) clat (nsec): min=435740k, max=435740k, avg=435739992.00, stdev= 0.00 lat (nsec): min=435743k, max=435743k, avg=435743354.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 5665, max= 5665, per=77.70%, avg=5665.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4131KiB/s (4230kB/s)(8192KiB/1983msec); 0 zone resets clat (msec): min=402, max=1075, avg=739.05, stdev=475.48 lat (msec): min=403, max=1075, avg=739.44, stdev=475.48 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7460, max= 7460, per=64.86%, avg=7460.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=14.12%, ctx=83, 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=159900: Tue Sep 8 14:10:13 2026 write: IOPS=1, BW=4313KiB/s (4417kB/s)(12.0MiB/2849msec); 0 zone resets clat (msec): min=180, max=1438, avg=921.31, stdev=658.42 lat (msec): min=180, max=1438, avg=921.72, stdev=658.39 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8094, max= 8126, per=70.52%, avg=8110.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.79%, ctx=38, 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=159902: Tue Sep 8 14:10:13 2026 write: IOPS=1, BW=5469KiB/s (5600kB/s)(12.0MiB/2247msec); 0 zone resets clat (msec): min=274, max=1197, avg=693.04, stdev=467.56 lat (msec): min=274, max=1200, avg=694.31, stdev=468.94 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min=15369, max=15369, per=100.00%, avg=15369.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=12.60%, ctx=158, 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=7291KiB/s (7466kB/s), 2066KiB/s-5469KiB/s (2115kB/s-5600kB/s), io=16.0MiB (16.8MB), run=1983-2247msec WRITE: bw=11.2MiB/s (11.8MB/s), 4131KiB/s-5469KiB/s (4230kB/s-5600kB/s), io=32.0MiB (33.6MB), run=1983-2849msec