== sanity test 398b: DIO and buffer IO race ============== 22:05:16 (1787796316) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.13904 s, 8.2 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=179983: Wed Aug 26 22:07:33 2026 read: IOPS=12, BW=51.8KiB/s (53.0kB/s)(5992KiB/115723msec) clat (usec): min=35, max=1022.8k, avg=43451.25, stdev=38586.44 lat (usec): min=35, max=1022.8k, avg=43454.03, stdev=38586.31 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 9372], 10.00th=[ 15270], | 20.00th=[ 20579], 30.00th=[ 25822], 40.00th=[ 31327], | 50.00th=[ 37487], 60.00th=[ 44303], 70.00th=[ 51643], | 80.00th=[ 60556], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[ 162530], 99.50th=[ 187696], 99.90th=[ 267387], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 5, max= 119, per=24.91%, avg=51.57, stdev=19.36, samples=227 iops : min= 1, max= 29, avg=12.26, stdev= 4.88, samples=227 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6296KiB/115723msec); 0 zone resets clat (usec): min=687, max=245123, avg=31843.80, stdev=33368.59 lat (usec): min=688, max=245125, avg=31846.17, stdev=33368.46 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1221], 10.00th=[ 1565], 20.00th=[ 3359], | 30.00th=[ 6194], 40.00th=[ 14877], 50.00th=[ 22938], 60.00th=[ 31327], | 70.00th=[ 41157], 80.00th=[ 54264], 90.00th=[ 77071], 95.00th=[ 95945], | 99.00th=[145753], 99.50th=[173016], 99.90th=[202376], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 15, max= 125, per=25.21%, avg=54.70, stdev=23.38, samples=225 iops : min= 3, max= 31, avg=13.04, stdev= 5.89, samples=225 lat (usec) : 50=0.20%, 100=1.76%, 250=0.10%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.39% lat (msec) : 2=6.45%, 4=5.08%, 10=6.87%, 20=11.98%, 50=40.01% lat (msec) : 100=22.95%, 250=4.00%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.96%, ctx=6584, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179984: Wed Aug 26 22:07:33 2026 read: IOPS=13, BW=52.7KiB/s (53.0kB/s)(5940KiB/112668msec) clat (usec): min=38, max=209497, avg=41197.93, stdev=26910.80 lat (usec): min=38, max=209498, avg=41200.90, stdev=26910.91 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 8356], 10.00th=[ 14222], 20.00th=[ 20055], | 30.00th=[ 24773], 40.00th=[ 30278], 50.00th=[ 35914], 60.00th=[ 43254], | 70.00th=[ 50070], 80.00th=[ 59507], 90.00th=[ 73925], 95.00th=[ 92799], | 99.00th=[130548], 99.50th=[145753], 99.90th=[185598], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 5, max= 120, per=25.35%, avg=52.48, stdev=19.40, samples=221 iops : min= 1, max= 30, avg=12.49, stdev= 4.88, samples=221 write: IOPS=14, BW=56.3KiB/s (57.7kB/s)(6348KiB/112668msec); 0 zone resets clat (usec): min=745, max=1021.6k, avg=32138.25, stdev=41229.28 lat (usec): min=745, max=1021.6k, avg=32140.23, stdev=41229.63 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1516], | 20.00th=[ 3130], 30.00th=[ 5932], 40.00th=[ 14877], | 50.00th=[ 22676], 60.00th=[ 30802], 70.00th=[ 40633], | 80.00th=[ 54264], 90.00th=[ 76022], 95.00th=[ 99091], | 99.00th=[ 135267], 99.50th=[ 164627], 99.90th=[ 240124], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 136, per=25.93%, avg=56.27, stdev=23.16, samples=220 iops : min= 1, max= 34, avg=13.44, stdev= 5.84, samples=220 lat (usec) : 50=0.07%, 100=2.08%, 250=0.07%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.26% lat (msec) : 2=6.93%, 4=5.18%, 10=6.41%, 20=12.50%, 50=40.27% lat (msec) : 100=21.94%, 250=4.20%, 2000=0.03% cpu : usr=0.07%, sys=4.90%, ctx=6317, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179986: Wed Aug 26 22:07:33 2026 read: IOPS=13, BW=52.9KiB/s (54.2kB/s)(6028KiB/113898msec) clat (usec): min=36, max=266941, avg=41472.50, stdev=27430.30 lat (usec): min=37, max=266942, avg=41474.64, stdev=27430.28 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 8848], 10.00th=[ 15533], 20.00th=[ 20579], | 30.00th=[ 25560], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 73925], 95.00th=[ 87557], | 99.00th=[123208], 99.50th=[166724], 99.90th=[252707], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 7, max= 111, per=25.44%, avg=52.66, stdev=18.39, samples=223 iops : min= 1, max= 27, avg=12.53, stdev= 4.62, samples=223 write: IOPS=13, BW=54.0KiB/s (56.3kB/s)(6260KiB/113898msec); 0 zone resets clat (usec): min=784, max=1015.5k, avg=32558.07, stdev=41660.08 lat (usec): min=786, max=1015.5k, avg=32561.17, stdev=41659.29 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1467], | 20.00th=[ 3228], 30.00th=[ 6652], 40.00th=[ 14746], | 50.00th=[ 23200], 60.00th=[ 31327], 70.00th=[ 41157], | 80.00th=[ 56361], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[ 156238], 99.50th=[ 164627], 99.90th=[ 295699], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 127, per=25.14%, avg=54.56, stdev=22.35, samples=223 iops : min= 1, max= 31, avg=13.01, stdev= 5.64, samples=223 lat (usec) : 50=0.20%, 100=1.76%, 250=0.13%, 500=0.03%, 1000=0.16% lat (msec) : 2=6.84%, 4=4.69%, 10=7.10%, 20=11.69%, 50=40.59% lat (msec) : 100=23.47%, 250=3.22%, 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=4.97%, ctx=6526, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179988: Wed Aug 26 22:07:33 2026 read: IOPS=13, BW=52.6KiB/s (53.9kB/s)(6052KiB/115036msec) clat (usec): min=40, max=247237, avg=41688.61, stdev=27733.24 lat (usec): min=40, max=247237, avg=41691.22, stdev=27734.16 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10421], 10.00th=[ 15533], 20.00th=[ 20841], | 30.00th=[ 25035], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 60031], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[131597], 99.50th=[147850], 99.90th=[196084], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 111, per=25.43%, avg=52.63, stdev=19.11, samples=225 iops : min= 1, max= 27, avg=12.53, stdev= 4.83, samples=225 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(6236KiB/115036msec); 0 zone resets clat (usec): min=840, max=973553, avg=32981.68, stdev=41543.54 lat (usec): min=841, max=973555, avg=32995.83, stdev=41544.12 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1450], 20.00th=[ 2900], | 30.00th=[ 5932], 40.00th=[ 13960], 50.00th=[ 23725], 60.00th=[ 31589], | 70.00th=[ 42730], 80.00th=[ 55837], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[149947], 99.50th=[164627], 99.90th=[235930], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 15, max= 127, per=25.00%, avg=54.25, stdev=22.77, samples=225 iops : min= 3, max= 31, avg=12.93, stdev= 5.76, samples=225 lat (usec) : 50=0.20%, 100=1.76%, 250=0.10%, 1000=0.20% lat (msec) : 2=7.13%, 4=5.31%, 10=6.02%, 20=11.88%, 50=40.85% lat (msec) : 100=21.91%, 250=4.62%, 1000=0.03% cpu : usr=0.08%, sys=4.80%, ctx=6492, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=207KiB/s (212kB/s), 51.8KiB/s-52.9KiB/s (53.0kB/s-54.2kB/s), io=23.4MiB (24.6MB), run=112668-115723msec WRITE: bw=217KiB/s (222kB/s), 54.2KiB/s-56.3KiB/s (55.5kB/s-57.7kB/s), io=24.6MiB (25.7MB), run=112668-115723msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179985: Wed Aug 26 22:08:10 2026 read: IOPS=9, BW=39.3KiB/s (40.3kB/s)(5992KiB/152325msec) clat (msec): min=4, max=1078, avg=39.22, stdev=43.54 lat (msec): min=4, max=1078, avg=39.22, stdev=43.54 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 85], 95.00th=[ 113], | 99.00th=[ 163], 99.50th=[ 184], 99.90th=[ 326], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 156, per=25.09%, avg=39.39, stdev=26.56, samples=295 iops : min= 1, max= 39, avg= 9.20, stdev= 6.68, samples=295 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6296KiB/152325msec); 0 zone resets clat (msec): min=8, max=272, avg=59.18, stdev=40.82 lat (msec): min=8, max=272, avg=59.18, stdev=40.82 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 70], 80.00th=[ 89], 90.00th=[ 117], 95.00th=[ 140], | 99.00th=[ 203], 99.50th=[ 228], 99.90th=[ 266], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 119, per=24.88%, avg=41.05, stdev=25.08, samples=298 iops : min= 1, max= 29, avg= 9.61, stdev= 6.29, samples=298 lat (msec) : 10=3.06%, 20=17.22%, 50=44.63%, 100=24.54%, 250=10.32% lat (msec) : 500=0.20%, 2000=0.03% cpu : usr=0.06%, sys=1.74%, ctx=4624, 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=179987: Wed Aug 26 22:08:10 2026 read: IOPS=9, BW=39.0KiB/s (39.0kB/s)(5940KiB/152110msec) clat (msec): min=4, max=920, avg=38.47, stdev=40.19 lat (msec): min=4, max=920, avg=38.47, stdev=40.19 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 57], 90.00th=[ 84], 95.00th=[ 110], | 99.00th=[ 161], 99.50th=[ 186], 99.90th=[ 317], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 135, per=25.37%, avg=39.84, stdev=25.82, samples=290 iops : min= 1, max= 33, avg= 9.30, stdev= 6.46, samples=290 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(6348KiB/152110msec); 0 zone resets clat (msec): min=9, max=367, avg=59.58, stdev=42.60 lat (msec): min=9, max=367, avg=59.59, stdev=42.60 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 88], 90.00th=[ 117], 95.00th=[ 140], | 99.00th=[ 215], 99.50th=[ 259], 99.90th=[ 309], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 111, per=25.21%, avg=41.60, stdev=23.88, samples=296 iops : min= 1, max= 27, avg= 9.75, stdev= 5.98, samples=296 lat (msec) : 10=2.96%, 20=16.99%, 50=46.19%, 100=23.08%, 250=10.42% lat (msec) : 500=0.33%, 1000=0.03% cpu : usr=0.06%, sys=1.64%, ctx=4602, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179989: Wed Aug 26 22:08:10 2026 read: IOPS=9, BW=39.6KiB/s (40.6kB/s)(6028KiB/152052msec) clat (msec): min=4, max=295, avg=40.10, stdev=37.42 lat (msec): min=4, max=295, avg=40.11, stdev=37.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 59], 90.00th=[ 91], 95.00th=[ 116], | 99.00th=[ 197], 99.50th=[ 224], 99.90th=[ 264], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 134, per=25.39%, avg=39.86, stdev=25.10, samples=294 iops : min= 1, max= 33, avg= 9.32, stdev= 6.30, samples=294 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6260KiB/152052msec); 0 zone resets clat (msec): min=11, max=936, avg=58.26, stdev=46.60 lat (msec): min=11, max=936, avg=58.28, stdev=46.61 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 65], 80.00th=[ 84], 90.00th=[ 114], 95.00th=[ 136], | 99.00th=[ 201], 99.50th=[ 264], 99.90th=[ 368], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 119, per=24.72%, avg=40.80, stdev=24.64, samples=298 iops : min= 1, max= 29, avg= 9.55, stdev= 6.18, samples=298 lat (msec) : 10=2.34%, 20=17.61%, 50=46.58%, 100=22.59%, 250=10.48% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.06%, sys=1.72%, ctx=4658, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179990: Wed Aug 26 22:08:10 2026 read: IOPS=9, BW=39.8KiB/s (40.8kB/s)(6052KiB/151931msec) clat (msec): min=4, max=297, avg=39.68, stdev=34.41 lat (msec): min=4, max=297, avg=39.68, stdev=34.41 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 88], 95.00th=[ 116], | 99.00th=[ 159], 99.50th=[ 174], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 135, per=25.49%, avg=40.01, stdev=26.05, samples=294 iops : min= 1, max= 33, avg= 9.35, stdev= 6.55, samples=294 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(6236KiB/151931msec); 0 zone resets clat (msec): min=10, max=960, avg=58.68, stdev=46.13 lat (msec): min=10, max=960, avg=58.68, stdev=46.13 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 114], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 218], 99.90th=[ 355], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 111, per=24.61%, avg=40.60, stdev=24.00, samples=298 iops : min= 1, max= 27, avg= 9.50, stdev= 6.02, samples=298 lat (msec) : 10=2.90%, 20=16.05%, 50=46.16%, 100=24.22%, 250=10.45% lat (msec) : 500=0.20%, 1000=0.03% cpu : usr=0.06%, sys=1.72%, ctx=4682, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=158KiB/s (161kB/s), 39.0KiB/s-39.8KiB/s (39.0kB/s-40.8kB/s), io=23.4MiB (24.6MB), run=151931-152325msec WRITE: bw=165KiB/s (169kB/s), 41.0KiB/s-41.7KiB/s (42.0kB/s-42.7kB/s), io=24.6MiB (25.7MB), run=151931-152325msec 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=180034: Wed Aug 26 22:08:58 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5920KiB/34098msec) clat (usec): min=42, max=254186, avg=49103.10, stdev=36593.28 lat (usec): min=42, max=254187, avg=49110.59, stdev=36599.03 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 63], 10.00th=[ 88], 20.00th=[ 23200], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 43254], 60.00th=[ 51119], | 70.00th=[ 58983], 80.00th=[ 74974], 90.00th=[ 94897], 95.00th=[111674], | 99.00th=[166724], 99.50th=[214959], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 30, max= 286, per=26.03%, avg=174.15, stdev=56.10, samples=66 iops : min= 1, max= 17, avg=10.12, stdev= 3.51, samples=66 write: IOPS=11, BW=187KiB/s (191kB/s)(6368KiB/34098msec); 0 zone resets clat (usec): min=1470, max=279807, avg=38960.13, stdev=40999.56 lat (usec): min=1472, max=279809, avg=38975.96, stdev=41014.23 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1909], 10.00th=[ 2638], 20.00th=[ 5211], | 30.00th=[ 9896], 40.00th=[ 16712], 50.00th=[ 25560], 60.00th=[ 36963], | 70.00th=[ 50594], 80.00th=[ 66323], 90.00th=[ 92799], 95.00th=[120062], | 99.00th=[193987], 99.50th=[242222], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 62, max= 479, per=27.62%, avg=194.19, stdev=79.69, samples=64 iops : min= 3, max= 29, avg=11.39, stdev= 5.01, samples=64 lat (usec) : 50=0.26%, 100=4.95%, 250=0.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.99%, 4=5.21%, 10=7.81%, 20=8.59%, 50=33.72% lat (msec) : 100=27.86%, 250=7.68%, 500=0.26% cpu : usr=0.05%, sys=4.77%, ctx=1683, 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=180036: Wed Aug 26 22:08:58 2026 read: IOPS=10, BW=165KiB/s (168kB/s)(5744KiB/34911msec) clat (usec): min=39, max=342820, avg=51158.83, stdev=40162.31 lat (usec): min=39, max=342822, avg=51160.48, stdev=40162.26 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 161], 20.00th=[ 22676], | 30.00th=[ 30802], 40.00th=[ 36439], 50.00th=[ 43779], 60.00th=[ 53216], | 70.00th=[ 62129], 80.00th=[ 78119], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[179307], 99.50th=[270533], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 31, max= 379, per=25.01%, avg=167.28, stdev=77.42, samples=67 iops : min= 1, max= 23, avg= 9.70, stdev= 4.91, samples=67 write: IOPS=11, BW=187KiB/s (192kB/s)(6544KiB/34911msec); 0 zone resets clat (usec): min=1335, max=292745, avg=39613.38, stdev=38837.37 lat (usec): min=1337, max=292747, avg=39628.49, stdev=38829.07 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1876], 10.00th=[ 3064], 20.00th=[ 6652], | 30.00th=[ 10552], 40.00th=[ 19268], 50.00th=[ 30016], 60.00th=[ 40109], | 70.00th=[ 50594], 80.00th=[ 65274], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[156238], 99.50th=[168821], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 62, max= 528, per=26.64%, avg=187.25, stdev=74.92, samples=68 iops : min= 3, max= 33, avg=10.96, stdev= 4.79, samples=68 lat (usec) : 50=0.26%, 100=3.91%, 250=0.91%, 750=0.13% lat (msec) : 2=3.39%, 4=3.52%, 10=8.85%, 20=7.68%, 50=34.90% lat (msec) : 100=27.99%, 250=8.07%, 500=0.39% cpu : usr=0.05%, sys=4.74%, ctx=1615, 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=180037: Wed Aug 26 22:08:58 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6256KiB/35798msec) clat (usec): min=42, max=249329, avg=49484.92, stdev=35279.14 lat (usec): min=42, max=249330, avg=49486.25, stdev=35279.09 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 67], 10.00th=[ 93], 20.00th=[ 22676], | 30.00th=[ 30016], 40.00th=[ 37487], 50.00th=[ 44827], 60.00th=[ 52691], | 70.00th=[ 64226], 80.00th=[ 72877], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[158335], 99.50th=[198181], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 62, max= 380, per=26.17%, avg=175.06, stdev=68.12, samples=70 iops : min= 3, max= 23, avg=10.19, stdev= 4.24, samples=70 write: IOPS=10, BW=169KiB/s (173kB/s)(6032KiB/35798msec); 0 zone resets clat (usec): min=1430, max=187242, avg=43309.34, stdev=41036.00 lat (usec): min=1432, max=187246, avg=43338.44, stdev=41016.99 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2057], 10.00th=[ 2999], 20.00th=[ 7308], | 30.00th=[ 13042], 40.00th=[ 20055], 50.00th=[ 30016], 60.00th=[ 42730], | 70.00th=[ 56361], 80.00th=[ 78119], 90.00th=[102237], 95.00th=[124257], | 99.00th=[183501], 99.50th=[185598], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 347, per=24.12%, avg=169.57, stdev=66.17, samples=69 iops : min= 1, max= 21, avg= 9.84, stdev= 4.19, samples=69 lat (usec) : 50=0.26%, 100=4.95%, 250=0.65%, 500=0.13% lat (msec) : 2=2.47%, 4=3.78%, 10=5.99%, 20=10.29%, 50=30.73% lat (msec) : 100=31.12%, 250=9.64% cpu : usr=0.07%, sys=4.57%, ctx=1659, 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=180039: Wed Aug 26 22:08:58 2026 read: IOPS=10, BW=173KiB/s (178kB/s)(6032KiB/34779msec) clat (usec): min=35, max=226372, avg=46988.78, stdev=35637.61 lat (usec): min=35, max=226373, avg=46990.12, stdev=35637.61 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 18482], | 30.00th=[ 28443], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 51119], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 93848], 95.00th=[109577], | 99.00th=[154141], 99.50th=[183501], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 24, max= 380, per=25.97%, avg=173.75, stdev=76.12, samples=68 iops : min= 1, max= 23, avg=10.12, stdev= 4.79, samples=68 write: IOPS=11, BW=180KiB/s (184kB/s)(6256KiB/34779msec); 0 zone resets clat (usec): min=1350, max=325299, avg=43053.76, stdev=44853.50 lat (usec): min=1353, max=325301, avg=43080.71, stdev=44847.75 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1975], 10.00th=[ 2868], 20.00th=[ 6915], | 30.00th=[ 11994], 40.00th=[ 19792], 50.00th=[ 28705], 60.00th=[ 40109], | 70.00th=[ 53216], 80.00th=[ 71828], 90.00th=[ 96994], 95.00th=[135267], | 99.00th=[204473], 99.50th=[246416], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 31, max= 384, per=25.69%, avg=180.62, stdev=76.44, samples=68 iops : min= 1, max= 24, avg=10.54, stdev= 4.82, samples=68 lat (usec) : 50=0.65%, 100=7.03%, 250=1.04%, 500=0.13% lat (msec) : 2=2.60%, 4=3.91%, 10=7.29%, 20=8.33%, 50=31.77% lat (msec) : 100=28.39%, 250=8.72%, 500=0.13% cpu : usr=0.07%, sys=4.68%, ctx=1625, 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=669KiB/s (685kB/s), 165KiB/s-175KiB/s (168kB/s-179kB/s), io=23.4MiB (24.5MB), run=34098-35798msec WRITE: bw=704KiB/s (721kB/s), 169KiB/s-187KiB/s (173kB/s-192kB/s), io=24.6MiB (25.8MB), run=34098-35798msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180032: Wed Aug 26 22:09:10 2026 read: IOPS=7, BW=124KiB/s (126kB/s)(5920KiB/47922msec) clat (msec): min=8, max=309, avg=50.99, stdev=46.39 lat (msec): min=8, max=309, avg=50.99, stdev=46.39 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 54], 80.00th=[ 77], 90.00th=[ 117], 95.00th=[ 146], | 99.00th=[ 245], 99.50th=[ 305], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 507, per=25.60%, avg=126.99, stdev=91.93, samples=91 iops : min= 1, max= 31, avg= 7.14, stdev= 5.76, samples=91 write: IOPS=8, BW=133KiB/s (136kB/s)(6368KiB/47922msec); 0 zone resets clat (msec): min=13, max=320, avg=72.44, stdev=49.95 lat (msec): min=13, max=320, avg=72.44, stdev=49.95 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 85], 80.00th=[ 106], 90.00th=[ 138], 95.00th=[ 182], | 99.00th=[ 251], 99.50th=[ 275], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 415, per=26.16%, avg=136.54, stdev=77.78, samples=91 iops : min= 1, max= 25, avg= 7.75, stdev= 4.87, samples=91 lat (msec) : 10=0.52%, 20=10.81%, 50=43.88%, 100=26.04%, 250=17.84% lat (msec) : 500=0.91% cpu : usr=0.05%, sys=1.62%, ctx=1200, 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=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=180033: Wed Aug 26 22:09:10 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(5744KiB/47672msec) clat (msec): min=7, max=233, avg=47.48, stdev=40.20 lat (msec): min=7, max=233, avg=47.48, stdev=40.20 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 72], 90.00th=[ 105], 95.00th=[ 134], | 99.00th=[ 182], 99.50th=[ 230], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 23, max= 507, per=25.12%, avg=124.57, stdev=87.28, samples=89 iops : min= 1, max= 31, avg= 6.99, stdev= 5.50, samples=89 write: IOPS=8, BW=137KiB/s (141kB/s)(6544KiB/47672msec); 0 zone resets clat (msec): min=15, max=425, avg=73.75, stdev=53.37 lat (msec): min=15, max=425, avg=73.76, stdev=53.37 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 58], 60.00th=[ 70], | 70.00th=[ 85], 80.00th=[ 107], 90.00th=[ 140], 95.00th=[ 180], | 99.00th=[ 268], 99.50th=[ 317], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 23, max= 412, per=26.09%, avg=136.20, stdev=76.60, samples=92 iops : min= 1, max= 25, avg= 7.72, stdev= 4.80, samples=92 lat (msec) : 10=0.78%, 20=11.20%, 50=43.10%, 100=27.21%, 250=17.06% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.67%, ctx=1168, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180035: Wed Aug 26 22:09:10 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(6256KiB/48231msec) clat (msec): min=7, max=298, avg=52.92, stdev=49.11 lat (msec): min=7, max=298, avg=52.93, stdev=49.12 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 56], 80.00th=[ 82], 90.00th=[ 120], 95.00th=[ 163], | 99.00th=[ 253], 99.50th=[ 279], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 475, per=25.98%, avg=128.84, stdev=94.43, samples=94 iops : min= 1, max= 29, avg= 7.27, stdev= 5.95, samples=94 write: IOPS=7, BW=125KiB/s (128kB/s)(6032KiB/48231msec); 0 zone resets clat (msec): min=14, max=421, avg=72.88, stdev=52.54 lat (msec): min=14, max=421, avg=72.88, stdev=52.54 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 41], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 70], | 70.00th=[ 83], 80.00th=[ 105], 90.00th=[ 140], 95.00th=[ 169], | 99.00th=[ 268], 99.50th=[ 330], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 30, max= 444, per=24.04%, avg=125.49, stdev=82.08, samples=92 iops : min= 1, max= 27, avg= 7.04, stdev= 5.12, samples=92 lat (msec) : 10=1.43%, 20=10.81%, 50=41.80%, 100=28.26%, 250=16.54% lat (msec) : 500=1.17% cpu : usr=0.06%, sys=1.57%, ctx=1171, 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=180038: Wed Aug 26 22:09:10 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47606msec) clat (msec): min=8, max=313, avg=50.86, stdev=43.15 lat (msec): min=8, max=313, avg=50.86, stdev=43.15 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 77], 90.00th=[ 113], 95.00th=[ 138], | 99.00th=[ 209], 99.50th=[ 232], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 313, per=26.09%, avg=129.39, stdev=74.89, samples=90 iops : min= 1, max= 19, avg= 7.29, stdev= 4.73, samples=90 write: IOPS=8, BW=131KiB/s (135kB/s)(6256KiB/47606msec); 0 zone resets clat (msec): min=14, max=295, avg=72.07, stdev=46.42 lat (msec): min=14, max=295, avg=72.07, stdev=46.42 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 51], 50.00th=[ 60], 60.00th=[ 70], | 70.00th=[ 84], 80.00th=[ 106], 90.00th=[ 136], 95.00th=[ 159], | 99.00th=[ 243], 99.50th=[ 292], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 476, per=25.01%, avg=130.53, stdev=79.76, samples=93 iops : min= 1, max= 29, avg= 7.35, stdev= 4.98, samples=93 lat (msec) : 10=0.78%, 20=9.24%, 50=42.06%, 100=30.73%, 250=16.80% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.52%, ctx=1136, 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=497KiB/s (509kB/s), 120KiB/s-130KiB/s (123kB/s-133kB/s), io=23.4MiB (24.5MB), run=47606-48231msec WRITE: bw=522KiB/s (535kB/s), 125KiB/s-137KiB/s (128kB/s-141kB/s), io=24.6MiB (25.8MB), run=47606-48231msec 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=180057: Wed Aug 26 22:09:26 2026 read: IOPS=2, BW=2062KiB/s (2112kB/s)(7168KiB/3476msec) clat (msec): min=139, max=384, avg=233.50, stdev=80.39 lat (msec): min=139, max=384, avg=233.51, stdev=80.39 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 186], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 220], 60.00th=[ 222], | 70.00th=[ 222], 80.00th=[ 288], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 2000, max= 4096, per=61.33%, avg=2839.75, stdev=1018.27, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1473KiB/s (1508kB/s)(5120KiB/3476msec); 0 zone resets clat (msec): min=181, max=491, avg=334.08, stdev=133.25 lat (msec): min=181, max=491, avg=334.32, stdev=133.31 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 2000, max= 3618, per=37.28%, avg=2416.50, stdev=801.32, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=58.33%, 500=41.67% cpu : usr=0.00%, sys=14.33%, ctx=293, 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=180058: Wed Aug 26 22:09:26 2026 read: IOPS=0, BW=478KiB/s (490kB/s)(2048KiB/4282msec) clat (usec): min=923, max=169557, avg=85240.60, stdev=119242.20 lat (usec): min=954, max=169560, avg=85257.73, stdev=119222.45 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 922], 10.00th=[ 922], 20.00th=[ 922], | 30.00th=[ 922], 40.00th=[ 922], 50.00th=[ 922], 60.00th=[168821], | 70.00th=[168821], 80.00th=[168821], 90.00th=[168821], 95.00th=[168821], | 99.00th=[168821], 99.50th=[168821], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 1549, max= 1809, per=36.26%, avg=1679.00, stdev=183.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2391KiB/s (2449kB/s)(10.0MiB/4282msec); 0 zone resets clat (msec): min=108, max=1082, avg=399.43, stdev=290.28 lat (msec): min=108, max=1082, avg=399.53, stdev=290.27 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 131], | 30.00th=[ 178], 40.00th=[ 236], 50.00th=[ 342], 60.00th=[ 351], | 70.00th=[ 460], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1809, max= 4096, per=46.43%, avg=3009.67, stdev=1165.64, samples=6 iops : min= 1, max= 4, avg= 2.17, stdev= 1.33, samples=6 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=12.99%, ctx=185, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180059: Wed Aug 26 22:09:26 2026 read: IOPS=1, BW=1389KiB/s (1422kB/s)(6144KiB/4423msec) clat (usec): min=524, max=303961, avg=173926.52, stdev=115882.93 lat (usec): min=525, max=303962, avg=173927.88, stdev=115882.90 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 94897], | 30.00th=[ 94897], 40.00th=[139461], 50.00th=[139461], 60.00th=[242222], | 70.00th=[263193], 80.00th=[263193], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 1809, max= 4000, per=53.15%, avg=2461.00, stdev=1030.80, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1389KiB/s (1422kB/s)(6144KiB/4423msec); 0 zone resets clat (msec): min=145, max=1458, avg=512.74, stdev=487.09 lat (msec): min=146, max=1459, avg=512.87, stdev=487.04 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 472], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 2000, max= 3170, per=35.50%, avg=2301.25, stdev=579.40, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.95%, ctx=175, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180060: Wed Aug 26 22:09:26 2026 read: IOPS=1, BW=1787KiB/s (1830kB/s)(5120KiB/2865msec) clat (usec): min=1000, max=257838, avg=110614.68, stdev=114928.35 lat (usec): min=1001, max=257840, avg=110616.11, stdev=114928.50 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1004], 10.00th=[ 1004], 20.00th=[ 1004], | 30.00th=[ 5735], 40.00th=[ 5735], 50.00th=[ 89654], 60.00th=[ 89654], | 70.00th=[198181], 80.00th=[198181], 90.00th=[256902], 95.00th=[256902], | 99.00th=[256902], 99.50th=[256902], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 4000, max= 4047, per=86.90%, avg=4023.50, stdev=33.23, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2502KiB/s (2562kB/s)(7168KiB/2865msec); 0 zone resets clat (msec): min=159, max=619, avg=322.16, stdev=178.76 lat (msec): min=159, max=621, avg=322.45, stdev=179.10 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 184], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 510], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1528, max= 4096, per=43.45%, avg=2816.25, stdev=1234.15, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 2=8.33%, 10=8.33%, 100=8.33%, 250=41.67%, 500=16.67% lat (msec) : 750=16.67% cpu : usr=0.03%, sys=16.76%, ctx=119, 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=4630KiB/s (4741kB/s), 478KiB/s-2062KiB/s (490kB/s-2112kB/s), io=20.0MiB (20.0MB), run=2865-4423msec WRITE: bw=6482KiB/s (6638kB/s), 1389KiB/s-2502KiB/s (1422kB/s-2562kB/s), io=28.0MiB (29.4MB), run=2865-4423msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180053: Wed Aug 26 22:09:26 2026 read: IOPS=1, BW=1555KiB/s (1592kB/s)(7168KiB/4610msec) clat (msec): min=89, max=806, avg=260.02, stdev=252.23 lat (msec): min=89, max=806, avg=260.02, stdev=252.23 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 97], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 192], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 300], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1577, max= 4000, per=71.69%, avg=3142.00, stdev=1357.43, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1111KiB/s (1137kB/s)(5120KiB/4610msec); 0 zone resets clat (msec): min=108, max=892, avg=500.28, stdev=283.69 lat (msec): min=108, max=893, avg=500.57, stdev=283.71 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 2015, max= 2035, per=32.99%, avg=2024.33, stdev=10.07, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.80%, ctx=99, 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=180054: Wed Aug 26 22:09:26 2026 read: IOPS=0, BW=438KiB/s (449kB/s)(2048KiB/4672msec) clat (msec): min=99, max=177, avg=138.83, stdev=55.04 lat (msec): min=99, max=177, avg=138.84, stdev=55.04 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 178], 95.00th=[ 178], | 99.00th=[ 178], 99.50th=[ 178], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 1592, max= 2000, per=40.98%, avg=1796.00, stdev=288.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2192KiB/s (2244kB/s)(10.0MiB/4672msec); 0 zone resets clat (msec): min=98, max=1232, avg=413.31, stdev=361.71 lat (msec): min=98, max=1232, avg=413.51, stdev=361.66 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 161], 60.00th=[ 393], | 70.00th=[ 460], 80.00th=[ 592], 90.00th=[ 735], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 2000, max= 4031, per=48.55%, avg=2978.75, stdev=1112.53, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=4.43%, ctx=119, 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=180055: Wed Aug 26 22:09:26 2026 read: IOPS=1, BW=1445KiB/s (1480kB/s)(6144KiB/4251msec) clat (msec): min=125, max=542, avg=269.45, stdev=159.52 lat (msec): min=125, max=542, avg=269.45, stdev=159.52 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 251], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2000, max= 3849, per=56.46%, avg=2474.75, stdev=916.28, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1445KiB/s (1480kB/s)(6144KiB/4251msec); 0 zone resets clat (msec): min=113, max=947, avg=422.12, stdev=336.08 lat (msec): min=113, max=947, avg=422.23, stdev=336.08 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 418], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 2000, max= 3160, per=36.50%, avg=2239.60, stdev=514.61, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.05%, sys=3.29%, 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=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=180056: Wed Aug 26 22:09:26 2026 read: IOPS=1, BW=1107KiB/s (1133kB/s)(5120KiB/4627msec) clat (msec): min=57, max=804, avg=303.51, stdev=308.38 lat (msec): min=57, max=804, avg=303.51, stdev=308.38 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 58], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 134], 60.00th=[ 134], | 70.00th=[ 397], 80.00th=[ 397], 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= 2000, max= 6071, per=92.07%, avg=4035.50, stdev=2878.63, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1549KiB/s (1586kB/s)(7168KiB/4627msec); 0 zone resets clat (msec): min=86, max=1085, avg=424.60, stdev=338.86 lat (msec): min=86, max=1086, avg=424.73, stdev=338.89 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 131], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 363], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 584], 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= 1612, max= 3849, per=40.53%, avg=2487.00, stdev=1195.37, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.09%, sys=4.26%, ctx=82, 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=4384KiB/s (4489kB/s), 438KiB/s-1555KiB/s (449kB/s-1592kB/s), io=20.0MiB (20.0MB), run=4251-4672msec WRITE: bw=6137KiB/s (6284kB/s), 1111KiB/s-2192KiB/s (1137kB/s-2244kB/s), io=28.0MiB (29.4MB), run=4251-4672msec 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=180070: Wed Aug 26 22:09:44 2026 read: IOPS=0, BW=3747KiB/s (3837kB/s)(12.0MiB/3279msec) clat (msec): min=645, max=1412, avg=995.53, stdev=387.76 lat (msec): min=645, max=1412, avg=995.54, stdev=387.76 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1418], 80.00th=[ 1418], 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= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.09%, sys=3.33%, ctx=74, 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=180072: Wed Aug 26 22:09:44 2026 read: IOPS=0, BW=1129KiB/s (1156kB/s)(4096KiB/3629msec) clat (nsec): min=522219k, max=522219k, avg=522218918.00, stdev= 0.00 lat (nsec): min=522222k, max=522222k, avg=522221583.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2257KiB/s (2312kB/s)(8192KiB/3629msec); 0 zone resets clat (msec): min=1255, max=1717, avg=1486.42, stdev=326.50 lat (msec): min=1256, max=1718, avg=1487.62, stdev=327.07 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1720], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] 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) : 750=33.33%, 2000=66.67% cpu : usr=0.06%, sys=3.34%, ctx=93, 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=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=180074: Wed Aug 26 22:09:44 2026 write: IOPS=0, BW=2597KiB/s (2659kB/s)(12.0MiB/4732msec); 0 zone resets clat (msec): min=247, max=2730, avg=1456.43, stdev=1242.92 lat (msec): min=248, max=2731, avg=1459.70, stdev=1242.99 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 2735], 80.00th=[ 2735], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7861, max= 8175, per=100.00%, avg=8018.00, stdev=222.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.13%, sys=2.64%, ctx=60, 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=180075: Wed Aug 26 22:09:44 2026 write: IOPS=0, BW=3642KiB/s (3729kB/s)(12.0MiB/3374msec); 0 zone resets clat (msec): min=673, max=1393, avg=1095.07, stdev=375.41 lat (msec): min=679, max=1394, avg=1097.70, stdev=372.63 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7984, max= 8143, per=100.00%, avg=8063.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.33%, sys=3.14%, ctx=60, 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=4515KiB/s (4623kB/s), 1129KiB/s-3747KiB/s (1156kB/s-3837kB/s), io=16.0MiB (16.8MB), run=3279-3629msec WRITE: bw=6925KiB/s (7091kB/s), 2257KiB/s-3642KiB/s (2312kB/s-3729kB/s), io=32.0MiB (33.6MB), run=3374-4732msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180068: Wed Aug 26 22:09:44 2026 read: IOPS=0, BW=3801KiB/s (3892kB/s)(12.0MiB/3233msec) clat (msec): min=832, max=1273, avg=1054.67, stdev=220.51 lat (msec): min=832, max=1273, avg=1054.68, stdev=220.51 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=10.36%, ctx=307, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180069: Wed Aug 26 22:09:44 2026 read: IOPS=0, BW=875KiB/s (896kB/s)(4096KiB/4683msec) clat (nsec): min=834008k, max=834008k, avg=834007703.00, stdev= 0.00 lat (nsec): min=834009k, max=834009k, avg=834009495.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] 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=1749KiB/s (1791kB/s)(8192KiB/4683msec); 0 zone resets clat (msec): min=728, max=2789, avg=1759.09, stdev=1457.73 lat (msec): min=729, max=2793, avg=1761.50, stdev=1459.81 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 2802], | 70.00th=[ 2802], 80.00th=[ 2802], 90.00th=[ 2802], 95.00th=[ 2802], | 99.00th=[ 2802], 99.50th=[ 2802], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.26%, sys=3.72%, ctx=125, 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=180071: Wed Aug 26 22:09:44 2026 write: IOPS=0, BW=3022KiB/s (3095kB/s)(12.0MiB/4066msec); 0 zone resets clat (msec): min=300, max=2132, avg=1329.34, stdev=936.86 lat (msec): min=300, max=2133, avg=1329.70, stdev=936.90 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] 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) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.05%, sys=3.35%, ctx=44, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180073: Wed Aug 26 22:09:44 2026 write: IOPS=0, BW=3945KiB/s (4039kB/s)(12.0MiB/3115msec); 0 zone resets clat (msec): min=662, max=1610, avg=999.32, stdev=530.20 lat (msec): min=664, max=1610, avg=1001.15, stdev=529.03 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 1603], 80.00th=[ 1603], 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= 8031, max= 8175, per=100.00%, avg=8103.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.13%, sys=3.44%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3499KiB/s (3583kB/s), 875KiB/s-3801KiB/s (896kB/s-3892kB/s), io=16.0MiB (16.8MB), run=3233-4683msec WRITE: bw=6997KiB/s (7165kB/s), 1749KiB/s-3945KiB/s (1791kB/s-4039kB/s), io=32.0MiB (33.6MB), run=3115-4683msec