== sanity test 398b: DIO and buffer IO race ============== 05:19:17 (1784279957) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.21449 s, 15.7 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=149687: Fri Jul 17 05:20:43 2026 read: IOPS=19, BW=78.5KiB/s (80.4kB/s)(5992KiB/76290msec) clat (usec): min=21, max=631197, avg=24955.70, stdev=24048.85 lat (usec): min=21, max=631198, avg=24960.50, stdev=24048.94 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 963], 20.00th=[ 11731], | 30.00th=[ 15008], 40.00th=[ 17695], 50.00th=[ 20579], 60.00th=[ 24511], | 70.00th=[ 30278], 80.00th=[ 36963], 90.00th=[ 47449], 95.00th=[ 56886], | 99.00th=[ 83362], 99.50th=[101188], 99.90th=[175113], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 14, max= 159, per=24.94%, avg=78.31, stdev=27.35, samples=151 iops : min= 3, max= 39, avg=19.00, stdev= 6.85, samples=151 write: IOPS=20, BW=82.5KiB/s (84.5kB/s)(6296KiB/76290msec); 0 zone resets clat (usec): min=709, max=352070, avg=24517.81, stdev=24780.07 lat (usec): min=711, max=352070, avg=24519.28, stdev=24780.23 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1369], 10.00th=[ 1778], 20.00th=[ 3195], | 30.00th=[ 5473], 40.00th=[ 12125], 50.00th=[ 18482], 60.00th=[ 25035], | 70.00th=[ 32900], 80.00th=[ 42206], 90.00th=[ 57410], 95.00th=[ 71828], | 99.00th=[100140], 99.50th=[115868], 99.90th=[170918], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 31, max= 159, per=25.18%, avg=82.85, stdev=25.82, samples=150 iops : min= 7, max= 39, avg=20.13, stdev= 6.47, samples=150 lat (usec) : 50=1.01%, 100=3.19%, 250=0.42%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.46% lat (msec) : 2=5.92%, 4=6.38%, 10=8.76%, 20=23.83%, 50=38.96% lat (msec) : 100=10.03%, 250=0.75%, 500=0.03%, 750=0.03% cpu : usr=0.11%, sys=9.37%, ctx=7082, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149688: Fri Jul 17 05:20:43 2026 read: IOPS=19, BW=77.8KiB/s (79.7kB/s)(5940KiB/76329msec) clat (usec): min=30, max=218210, avg=24203.91, stdev=18381.54 lat (usec): min=30, max=218211, avg=24204.89, stdev=18381.55 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 6194], 20.00th=[ 12125], | 30.00th=[ 14746], 40.00th=[ 17695], 50.00th=[ 20841], 60.00th=[ 24249], | 70.00th=[ 28705], 80.00th=[ 34866], 90.00th=[ 45876], 95.00th=[ 54789], | 99.00th=[ 83362], 99.50th=[110625], 99.90th=[168821], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 7, max= 152, per=24.66%, avg=77.44, stdev=28.47, samples=151 iops : min= 1, max= 38, avg=18.79, stdev= 7.17, samples=151 write: IOPS=20, BW=83.2KiB/s (85.2kB/s)(6348KiB/76329msec); 0 zone resets clat (usec): min=758, max=612819, avg=25263.81, stdev=27658.45 lat (usec): min=758, max=612820, avg=25268.49, stdev=27660.49 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1369], 10.00th=[ 1893], 20.00th=[ 3523], | 30.00th=[ 6915], 40.00th=[ 13304], 50.00th=[ 19530], 60.00th=[ 25560], | 70.00th=[ 32900], 80.00th=[ 42206], 90.00th=[ 56886], 95.00th=[ 70779], | 99.00th=[104334], 99.50th=[113771], 99.90th=[158335], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 7, max= 167, per=25.10%, avg=82.58, stdev=25.55, samples=151 iops : min= 1, max= 41, avg=20.07, stdev= 6.41, samples=151 lat (usec) : 50=1.01%, 100=2.70%, 250=0.78%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=5.50%, 4=5.76%, 10=8.43%, 20=24.54%, 50=40.27% lat (msec) : 100=9.57%, 250=1.04%, 750=0.03% cpu : usr=0.10%, sys=9.47%, ctx=7117, 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=149689: Fri Jul 17 05:20:43 2026 read: IOPS=19, BW=79.9KiB/s (81.8kB/s)(6028KiB/75470msec) clat (usec): min=31, max=174073, avg=23654.79, stdev=16779.13 lat (usec): min=31, max=174074, avg=23662.38, stdev=16776.66 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 143], 20.00th=[ 11600], | 30.00th=[ 14877], 40.00th=[ 17695], 50.00th=[ 20841], 60.00th=[ 24249], | 70.00th=[ 28967], 80.00th=[ 35390], 90.00th=[ 44827], 95.00th=[ 53216], | 99.00th=[ 72877], 99.50th=[ 80217], 99.90th=[141558], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 31, max= 167, per=25.64%, avg=80.50, stdev=25.89, samples=147 iops : min= 7, max= 41, avg=19.55, stdev= 6.54, samples=147 write: IOPS=20, BW=82.9KiB/s (84.9kB/s)(6260KiB/75470msec); 0 zone resets clat (usec): min=855, max=730048, avg=25243.27, stdev=29497.18 lat (usec): min=857, max=730049, avg=25245.93, stdev=29497.40 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1352], 10.00th=[ 1942], 20.00th=[ 3556], | 30.00th=[ 7046], 40.00th=[ 13960], 50.00th=[ 19268], 60.00th=[ 25297], | 70.00th=[ 33162], 80.00th=[ 42206], 90.00th=[ 55313], 95.00th=[ 66847], | 99.00th=[106431], 99.50th=[127402], 99.90th=[204473], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 15, max= 151, per=25.22%, avg=82.97, stdev=26.59, samples=148 iops : min= 3, max= 37, avg=20.17, stdev= 6.71, samples=148 lat (usec) : 50=0.98%, 100=3.32%, 250=0.81%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.26% lat (msec) : 2=5.18%, 4=5.83%, 10=8.76%, 20=24.38%, 50=40.01% lat (msec) : 100=9.67%, 250=0.68%, 750=0.03% cpu : usr=0.11%, sys=9.50%, ctx=7066, 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=149690: Fri Jul 17 05:20:43 2026 read: IOPS=20, BW=80.3KiB/s (82.2kB/s)(6052KiB/75401msec) clat (usec): min=28, max=630568, avg=24564.24, stdev=24167.36 lat (usec): min=28, max=630569, avg=24568.42, stdev=24168.09 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 198], 20.00th=[ 11863], | 30.00th=[ 15008], 40.00th=[ 17433], 50.00th=[ 20841], 60.00th=[ 24773], | 70.00th=[ 29492], 80.00th=[ 35390], 90.00th=[ 44827], 95.00th=[ 55313], | 99.00th=[ 80217], 99.50th=[103285], 99.90th=[278922], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 7, max= 152, per=25.34%, avg=79.56, stdev=27.38, samples=149 iops : min= 1, max= 38, avg=19.30, stdev= 6.89, samples=149 write: IOPS=20, BW=82.7KiB/s (84.7kB/s)(6236KiB/75401msec); 0 zone resets clat (usec): min=808, max=202936, avg=24314.37, stdev=23577.10 lat (usec): min=809, max=202936, avg=24315.87, stdev=23576.94 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1352], 10.00th=[ 1696], 20.00th=[ 3261], | 30.00th=[ 5997], 40.00th=[ 12256], 50.00th=[ 18482], 60.00th=[ 25035], | 70.00th=[ 33162], 80.00th=[ 41681], 90.00th=[ 54264], 95.00th=[ 69731], | 99.00th=[ 96994], 99.50th=[112722], 99.90th=[179307], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 15, max= 144, per=24.96%, avg=82.11, stdev=26.63, samples=149 iops : min= 3, max= 36, avg=19.95, stdev= 6.72, samples=149 lat (usec) : 50=0.98%, 100=3.26%, 250=0.72%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=5.83%, 4=5.89%, 10=8.85%, 20=24.22%, 50=39.52% lat (msec) : 100=9.67%, 250=0.62%, 500=0.03%, 750=0.03% cpu : usr=0.10%, sys=9.33%, ctx=7013, 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=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=315KiB/s (322kB/s), 77.8KiB/s-80.3KiB/s (79.7kB/s-82.2kB/s), io=23.4MiB (24.6MB), run=75401-76329msec WRITE: bw=329KiB/s (337kB/s), 82.5KiB/s-83.2KiB/s (84.5kB/s-85.2kB/s), io=24.6MiB (25.7MB), run=75401-76329msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149691: Fri Jul 17 05:22:02 2026 read: IOPS=9, BW=38.8KiB/s (39.7kB/s)(5992KiB/154369msec) clat (msec): min=4, max=651, avg=21.72, stdev=26.42 lat (msec): min=4, max=651, avg=21.72, stdev=26.42 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 30], 90.00th=[ 47], 95.00th=[ 61], | 99.00th=[ 101], 99.50th=[ 130], 99.90th=[ 251], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 119, per=25.64%, avg=39.49, stdev=24.40, samples=296 iops : min= 1, max= 29, avg= 9.33, stdev= 6.15, samples=296 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6296KiB/154369msec); 0 zone resets clat (msec): min=27, max=324, avg=77.23, stdev=34.12 lat (msec): min=27, max=324, avg=77.23, stdev=34.12 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 39], 10.00th=[ 43], 20.00th=[ 51], | 30.00th=[ 57], 40.00th=[ 62], 50.00th=[ 69], 60.00th=[ 78], | 70.00th=[ 88], 80.00th=[ 102], 90.00th=[ 124], 95.00th=[ 146], | 99.00th=[ 186], 99.50th=[ 209], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 79, per=25.05%, avg=40.32, stdev=15.87, samples=305 iops : min= 1, max= 19, avg= 9.54, stdev= 4.03, samples=305 lat (msec) : 10=12.76%, 20=20.74%, 50=21.42%, 100=34.21%, 250=10.68% lat (msec) : 500=0.16%, 750=0.03% cpu : usr=0.06%, sys=2.30%, ctx=5309, 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=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=149692: Fri Jul 17 05:22:02 2026 read: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5940KiB/155530msec) clat (msec): min=4, max=626, avg=21.22, stdev=25.86 lat (msec): min=4, max=626, avg=21.22, stdev=25.86 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 45], 95.00th=[ 61], | 99.00th=[ 107], 99.50th=[ 124], 99.90th=[ 251], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 143, per=25.46%, avg=39.21, stdev=23.99, samples=297 iops : min= 1, max= 35, avg= 9.27, stdev= 6.06, samples=297 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6348KiB/155530msec); 0 zone resets clat (msec): min=22, max=367, avg=77.97, stdev=35.37 lat (msec): min=22, max=367, avg=77.97, stdev=35.37 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 40], 10.00th=[ 44], 20.00th=[ 51], | 30.00th=[ 57], 40.00th=[ 63], 50.00th=[ 69], 60.00th=[ 78], | 70.00th=[ 87], 80.00th=[ 101], 90.00th=[ 127], 95.00th=[ 148], | 99.00th=[ 197], 99.50th=[ 213], 99.90th=[ 313], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 80, per=25.11%, avg=40.42, stdev=15.91, samples=308 iops : min= 1, max= 20, avg= 9.57, stdev= 4.05, samples=308 lat (msec) : 10=13.12%, 20=21.03%, 50=20.44%, 100=34.31%, 250=10.90% lat (msec) : 500=0.16%, 750=0.03% cpu : usr=0.06%, sys=2.21%, ctx=5334, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149693: Fri Jul 17 05:22:02 2026 read: IOPS=9, BW=38.9KiB/s (39.9kB/s)(6028KiB/154810msec) clat (msec): min=4, max=156, avg=21.30, stdev=18.75 lat (msec): min=4, max=156, avg=21.30, stdev=18.75 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 31], 90.00th=[ 47], 95.00th=[ 61], | 99.00th=[ 93], 99.50th=[ 102], 99.90th=[ 155], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 7, max= 128, per=25.61%, avg=39.43, stdev=22.75, samples=299 iops : min= 1, max= 32, avg= 9.33, stdev= 5.71, samples=299 write: IOPS=10, BW=40.4KiB/s (41.4kB/s)(6260KiB/154810msec); 0 zone resets clat (msec): min=26, max=733, avg=78.23, stdev=38.58 lat (msec): min=26, max=733, avg=78.23, stdev=38.58 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 41], 10.00th=[ 44], 20.00th=[ 51], | 30.00th=[ 57], 40.00th=[ 63], 50.00th=[ 70], 60.00th=[ 78], | 70.00th=[ 88], 80.00th=[ 101], 90.00th=[ 122], 95.00th=[ 144], | 99.00th=[ 197], 99.50th=[ 230], 99.90th=[ 368], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 87, per=24.83%, avg=39.98, stdev=16.11, samples=306 iops : min= 1, max= 21, avg= 9.46, stdev= 4.10, samples=306 lat (msec) : 10=12.70%, 20=20.70%, 50=21.19%, 100=34.99%, 250=10.19% lat (msec) : 500=0.20%, 750=0.03% cpu : usr=0.06%, sys=2.28%, ctx=5388, 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=149694: Fri Jul 17 05:22:02 2026 read: IOPS=9, BW=39.2KiB/s (40.2kB/s)(6052KiB/154303msec) clat (msec): min=4, max=207, avg=20.65, stdev=18.94 lat (msec): min=4, max=207, avg=20.65, stdev=18.94 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 28], 90.00th=[ 45], 95.00th=[ 58], | 99.00th=[ 94], 99.50th=[ 127], 99.90th=[ 155], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 7, max= 135, per=26.08%, avg=40.16, stdev=23.16, samples=295 iops : min= 1, max= 33, avg= 9.51, stdev= 5.84, samples=295 write: IOPS=10, BW=40.4KiB/s (41.4kB/s)(6236KiB/154303msec); 0 zone resets clat (msec): min=25, max=689, avg=78.77, stdev=36.20 lat (msec): min=25, max=689, avg=78.78, stdev=36.20 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 41], 10.00th=[ 45], 20.00th=[ 52], | 30.00th=[ 58], 40.00th=[ 64], 50.00th=[ 71], 60.00th=[ 80], | 70.00th=[ 89], 80.00th=[ 102], 90.00th=[ 125], 95.00th=[ 146], | 99.00th=[ 180], 99.50th=[ 197], 99.90th=[ 321], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 72, per=24.83%, avg=39.98, stdev=14.86, samples=305 iops : min= 1, max= 18, avg= 9.46, stdev= 3.78, samples=305 lat (msec) : 10=13.15%, 20=20.67%, 50=20.44%, 100=34.90%, 250=10.74% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.06%, sys=2.25%, ctx=5269, 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=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=154KiB/s (158kB/s), 38.2KiB/s-39.2KiB/s (39.1kB/s-40.2kB/s), io=23.4MiB (24.6MB), run=154303-155530msec WRITE: bw=162KiB/s (166kB/s), 40.4KiB/s-40.8KiB/s (41.4kB/s-41.8kB/s), io=24.6MiB (25.7MB), run=154303-155530msec 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=149739: Fri Jul 17 05:22:24 2026 read: IOPS=22, BW=366KiB/s (375kB/s)(5920KiB/16162msec) clat (usec): min=23, max=92835, avg=21095.62, stdev=17016.56 lat (usec): min=24, max=92836, avg=21096.64, stdev=17016.61 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 105], | 30.00th=[12780], 40.00th=[16909], 50.00th=[20317], 60.00th=[23987], | 70.00th=[28181], 80.00th=[34866], 90.00th=[42730], 95.00th=[52167], | 99.00th=[69731], 99.50th=[80217], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 192, max= 634, per=25.44%, avg=365.00, stdev=96.63, samples=32 iops : min= 12, max= 39, avg=22.16, stdev= 6.11, samples=32 write: IOPS=24, BW=394KiB/s (403kB/s)(6368KiB/16162msec); 0 zone resets clat (usec): min=1241, max=112554, avg=20847.88, stdev=19704.98 lat (usec): min=1242, max=112556, avg=20849.84, stdev=19704.90 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1926], 10.00th=[ 2573], 20.00th=[ 3818], | 30.00th=[ 6128], 40.00th=[ 9765], 50.00th=[ 15139], 60.00th=[ 20317], | 70.00th=[ 26608], 80.00th=[ 36439], 90.00th=[ 48497], 95.00th=[ 56886], | 99.00th=[ 92799], 99.50th=[109577], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 128, max= 670, per=26.09%, avg=393.94, stdev=120.35, samples=32 iops : min= 8, max= 41, avg=24.00, stdev= 7.41, samples=32 lat (usec) : 50=1.82%, 100=7.03%, 250=2.21%, 500=0.52%, 750=0.26% lat (msec) : 2=3.39%, 4=7.94%, 10=10.68%, 20=20.83%, 50=38.02% lat (msec) : 100=6.90%, 250=0.39% cpu : usr=0.12%, sys=12.02%, ctx=1643, 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=149740: Fri Jul 17 05:22:24 2026 read: IOPS=21, BW=344KiB/s (353kB/s)(5744KiB/16683msec) clat (usec): min=24, max=120838, avg=23230.74, stdev=19766.26 lat (usec): min=24, max=120839, avg=23232.14, stdev=19766.37 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 111], | 30.00th=[ 13566], 40.00th=[ 17433], 50.00th=[ 20841], 60.00th=[ 24773], | 70.00th=[ 30278], 80.00th=[ 36439], 90.00th=[ 46924], 95.00th=[ 57934], | 99.00th=[ 88605], 99.50th=[104334], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 29, max= 667, per=23.95%, avg=343.67, stdev=133.84, samples=33 iops : min= 1, max= 41, avg=20.82, stdev= 8.35, samples=33 write: IOPS=24, BW=392KiB/s (402kB/s)(6544KiB/16683msec); 0 zone resets clat (usec): min=1149, max=162393, avg=19916.96, stdev=21900.81 lat (usec): min=1150, max=162396, avg=19919.03, stdev=21901.02 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1811], 10.00th=[ 2311], 20.00th=[ 3261], | 30.00th=[ 4817], 40.00th=[ 7570], 50.00th=[ 12518], 60.00th=[ 18482], | 70.00th=[ 25035], 80.00th=[ 32637], 90.00th=[ 46400], 95.00th=[ 62653], | 99.00th=[110625], 99.50th=[120062], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 94, max= 702, per=25.95%, avg=391.88, stdev=149.52, samples=33 iops : min= 5, max= 43, avg=23.85, stdev= 9.43, samples=33 lat (usec) : 50=1.30%, 100=7.16%, 250=2.08%, 500=0.13%, 750=0.13% lat (msec) : 2=3.65%, 4=9.77%, 10=12.50%, 20=19.66%, 50=35.42% lat (msec) : 100=7.29%, 250=0.91% cpu : usr=0.08%, sys=11.28%, ctx=1591, 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=149742: Fri Jul 17 05:22:24 2026 read: IOPS=23, BW=380KiB/s (389kB/s)(6256KiB/16467msec) clat (usec): min=24, max=139784, avg=22016.53, stdev=17883.72 lat (usec): min=24, max=139785, avg=22017.77, stdev=17883.60 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 66], 20.00th=[ 174], | 30.00th=[ 13698], 40.00th=[ 17171], 50.00th=[ 20841], 60.00th=[ 24511], | 70.00th=[ 28181], 80.00th=[ 34341], 90.00th=[ 43254], 95.00th=[ 52167], | 99.00th=[ 79168], 99.50th=[ 84411], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 120, max= 666, per=26.36%, avg=378.28, stdev=135.09, samples=32 iops : min= 7, max= 41, avg=23.00, stdev= 8.51, samples=32 write: IOPS=22, BW=366KiB/s (375kB/s)(6032KiB/16467msec); 0 zone resets clat (usec): min=1443, max=121867, avg=20096.71, stdev=19364.06 lat (usec): min=1445, max=121869, avg=20098.74, stdev=19364.03 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1926], 10.00th=[ 2573], 20.00th=[ 4146], | 30.00th=[ 6128], 40.00th=[ 9241], 50.00th=[ 13698], 60.00th=[ 19006], | 70.00th=[ 25822], 80.00th=[ 35390], 90.00th=[ 46400], 95.00th=[ 61080], | 99.00th=[ 83362], 99.50th=[ 96994], 99.90th=[122160], 99.95th=[122160], | 99.99th=[122160] bw ( KiB/s): min= 120, max= 638, per=23.73%, avg=358.31, stdev=106.69, samples=32 iops : min= 7, max= 39, avg=21.75, stdev= 6.63, samples=32 lat (usec) : 50=1.69%, 100=7.16%, 250=1.69%, 500=0.13%, 750=0.39% lat (msec) : 2=2.86%, 4=6.25%, 10=12.24%, 20=22.53%, 50=38.15% lat (msec) : 100=6.64%, 250=0.26% cpu : usr=0.09%, sys=11.15%, 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=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=149743: Fri Jul 17 05:22:24 2026 read: IOPS=23, BW=373KiB/s (382kB/s)(6032KiB/16166msec) clat (usec): min=26, max=93388, avg=21895.91, stdev=17822.99 lat (usec): min=27, max=93389, avg=21897.26, stdev=17822.81 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 108], | 30.00th=[12649], 40.00th=[16450], 50.00th=[20841], 60.00th=[25297], | 70.00th=[30278], 80.00th=[36963], 90.00th=[44303], 95.00th=[51643], | 99.00th=[73925], 99.50th=[79168], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 190, max= 573, per=26.88%, avg=385.74, stdev=107.12, samples=31 iops : min= 11, max= 35, avg=23.45, stdev= 6.78, samples=31 write: IOPS=24, BW=387KiB/s (396kB/s)(6256KiB/16166msec); 0 zone resets clat (usec): min=1047, max=185274, avg=19701.58, stdev=21431.24 lat (usec): min=1048, max=185276, avg=19703.45, stdev=21431.55 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1876], 10.00th=[ 2474], 20.00th=[ 3687], | 30.00th=[ 5145], 40.00th=[ 7373], 50.00th=[ 12256], 60.00th=[ 18220], | 70.00th=[ 24773], 80.00th=[ 33817], 90.00th=[ 46924], 95.00th=[ 56886], | 99.00th=[ 90702], 99.50th=[135267], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 120, max= 573, per=25.71%, avg=388.16, stdev=110.85, samples=32 iops : min= 7, max= 35, avg=23.62, stdev= 6.89, samples=32 lat (usec) : 50=1.04%, 100=7.94%, 250=2.86%, 500=0.26%, 750=0.13% lat (msec) : 2=3.39%, 4=7.81%, 10=14.06%, 20=19.27%, 50=35.68% lat (msec) : 100=7.29%, 250=0.26% cpu : usr=0.07%, sys=11.77%, ctx=1582, 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=1436KiB/s (1470kB/s), 344KiB/s-380KiB/s (353kB/s-389kB/s), io=23.4MiB (24.5MB), run=16162-16683msec WRITE: bw=1511KiB/s (1547kB/s), 366KiB/s-394KiB/s (375kB/s-403kB/s), io=24.6MiB (25.8MB), run=16162-16683msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149735: Fri Jul 17 05:22:48 2026 read: IOPS=9, BW=146KiB/s (150kB/s)(5920KiB/40414msec) clat (msec): min=4, max=197, avg=24.35, stdev=24.39 lat (msec): min=4, max=197, avg=24.35, stdev=24.39 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 23], 80.00th=[ 35], 90.00th=[ 57], 95.00th=[ 78], | 99.00th=[ 126], 99.50th=[ 146], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 31, max= 320, per=24.96%, avg=147.76, stdev=83.79, samples=79 iops : min= 1, max= 20, avg= 8.59, stdev= 5.33, samples=79 write: IOPS=9, BW=158KiB/s (161kB/s)(6368KiB/40414msec); 0 zone resets clat (msec): min=29, max=237, avg=78.38, stdev=32.47 lat (msec): min=29, max=237, avg=78.38, stdev=32.47 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 43], 10.00th=[ 47], 20.00th=[ 52], | 30.00th=[ 57], 40.00th=[ 65], 50.00th=[ 71], 60.00th=[ 79], | 70.00th=[ 87], 80.00th=[ 100], 90.00th=[ 125], 95.00th=[ 146], | 99.00th=[ 188], 99.50th=[ 192], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 288, per=25.23%, avg=157.19, stdev=66.24, samples=80 iops : min= 1, max= 18, avg= 9.20, stdev= 4.28, samples=80 lat (msec) : 10=10.29%, 20=22.14%, 50=18.49%, 100=38.28%, 250=10.81% cpu : usr=0.05%, sys=2.51%, ctx=1409, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149736: Fri Jul 17 05:22:48 2026 read: IOPS=8, BW=143KiB/s (147kB/s)(5744KiB/40084msec) clat (msec): min=5, max=169, avg=22.31, stdev=20.86 lat (msec): min=5, max=169, avg=22.31, stdev=20.86 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 30], 90.00th=[ 52], 95.00th=[ 68], | 99.00th=[ 97], 99.50th=[ 120], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 31, max= 416, per=24.73%, avg=146.42, stdev=95.43, samples=77 iops : min= 1, max= 26, avg= 8.53, stdev= 6.07, samples=77 write: IOPS=10, BW=163KiB/s (167kB/s)(6544KiB/40084msec); 0 zone resets clat (msec): min=28, max=245, avg=78.32, stdev=32.87 lat (msec): min=28, max=245, avg=78.33, stdev=32.89 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 41], 10.00th=[ 45], 20.00th=[ 54], | 30.00th=[ 60], 40.00th=[ 65], 50.00th=[ 71], 60.00th=[ 79], | 70.00th=[ 88], 80.00th=[ 100], 90.00th=[ 122], 95.00th=[ 142], | 99.00th=[ 207], 99.50th=[ 207], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 31, max= 320, per=26.05%, avg=162.30, stdev=62.32, samples=79 iops : min= 1, max= 20, avg= 9.52, stdev= 4.08, samples=79 lat (msec) : 10=10.29%, 20=21.35%, 50=18.62%, 100=39.45%, 250=10.29% cpu : usr=0.04%, sys=2.33%, ctx=1366, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149737: Fri Jul 17 05:22:48 2026 read: IOPS=10, BW=160KiB/s (164kB/s)(6256KiB/39001msec) clat (msec): min=5, max=200, avg=21.52, stdev=20.01 lat (msec): min=5, max=200, avg=21.52, stdev=20.01 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 28], 90.00th=[ 47], 95.00th=[ 61], | 99.00th=[ 95], 99.50th=[ 146], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 31, max= 512, per=27.59%, avg=163.34, stdev=101.33, samples=76 iops : min= 1, max= 32, avg= 9.58, stdev= 6.39, samples=76 write: IOPS=9, BW=155KiB/s (158kB/s)(6032KiB/39001msec); 0 zone resets clat (msec): min=30, max=238, avg=80.80, stdev=32.66 lat (msec): min=30, max=238, avg=80.82, stdev=32.65 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 43], 10.00th=[ 47], 20.00th=[ 55], | 30.00th=[ 62], 40.00th=[ 67], 50.00th=[ 74], 60.00th=[ 80], | 70.00th=[ 90], 80.00th=[ 106], 90.00th=[ 125], 95.00th=[ 148], | 99.00th=[ 184], 99.50th=[ 203], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 256, per=24.67%, avg=153.71, stdev=52.65, samples=77 iops : min= 1, max= 16, avg= 8.97, stdev= 3.44, samples=77 lat (msec) : 10=9.11%, 20=26.69%, 50=17.71%, 100=34.77%, 250=11.72% cpu : usr=0.05%, sys=2.47%, ctx=1393, 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=149738: Fri Jul 17 05:22:48 2026 read: IOPS=9, BW=152KiB/s (155kB/s)(6032KiB/39778msec) clat (msec): min=6, max=169, avg=21.85, stdev=21.07 lat (msec): min=6, max=169, avg=21.85, stdev=21.07 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 28], 90.00th=[ 47], 95.00th=[ 68], | 99.00th=[ 107], 99.50th=[ 116], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 31, max= 352, per=26.40%, avg=156.28, stdev=85.12, samples=75 iops : min= 1, max= 22, avg= 9.12, stdev= 5.44, samples=75 write: IOPS=9, BW=157KiB/s (161kB/s)(6256KiB/39778msec); 0 zone resets clat (msec): min=30, max=229, avg=80.15, stdev=33.33 lat (msec): min=30, max=229, avg=80.15, stdev=33.33 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 42], 10.00th=[ 46], 20.00th=[ 52], | 30.00th=[ 58], 40.00th=[ 64], 50.00th=[ 72], 60.00th=[ 82], | 70.00th=[ 91], 80.00th=[ 105], 90.00th=[ 131], 95.00th=[ 148], | 99.00th=[ 180], 99.50th=[ 197], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 31, max= 256, per=24.94%, avg=155.40, stdev=59.64, samples=78 iops : min= 1, max= 16, avg= 9.09, stdev= 3.88, samples=78 lat (msec) : 10=12.24%, 20=22.40%, 50=18.23%, 100=34.77%, 250=12.37% cpu : usr=0.05%, sys=2.52%, ctx=1398, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=593KiB/s (607kB/s), 143KiB/s-160KiB/s (147kB/s-164kB/s), io=23.4MiB (24.5MB), run=39001-40414msec WRITE: bw=624KiB/s (639kB/s), 155KiB/s-163KiB/s (158kB/s-167kB/s), io=24.6MiB (25.8MB), run=39001-40414msec 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=149755: Fri Jul 17 05:22:58 2026 read: IOPS=1, BW=1937KiB/s (1984kB/s)(7168KiB/3700msec) clat (usec): min=485, max=1580.9k, avg=312017.04, stdev=564003.81 lat (usec): min=487, max=1580.9k, avg=312018.58, stdev=564004.11 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], | 20.00th=[ 81265], 30.00th=[ 84411], 40.00th=[ 84411], | 50.00th=[ 87557], 60.00th=[ 109577], 70.00th=[ 109577], | 80.00th=[ 240124], 90.00th=[1585447], 95.00th=[1585447], | 99.00th=[1585447], 99.50th=[1585447], 99.90th=[1585447], | 99.95th=[1585447], 99.99th=[1585447] bw ( KiB/s): min= 1416, max= 8159, per=100.00%, avg=4787.50, stdev=4768.02, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1384KiB/s (1417kB/s)(5120KiB/3700msec); 0 zone resets clat (msec): min=73, max=465, avg=277.91, stdev=149.78 lat (msec): min=73, max=465, avg=277.97, stdev=149.79 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 253], 60.00th=[ 253], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 2039, max= 3828, per=40.05%, avg=2635.33, stdev=1032.88, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 100=33.33%, 250=25.00%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=18.82%, ctx=597, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149757: Fri Jul 17 05:22:58 2026 read: IOPS=0, BW=470KiB/s (481kB/s)(2048KiB/4357msec) clat (msec): min=113, max=259, avg=186.56, stdev=103.51 lat (msec): min=113, max=259, avg=186.56, stdev=103.51 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 1422, max= 1992, per=36.32%, avg=1707.00, stdev=403.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2350KiB/s (2407kB/s)(10.0MiB/4357msec); 0 zone resets clat (msec): min=81, max=1908, avg=392.17, stdev=555.10 lat (msec): min=81, max=1908, avg=392.27, stdev=555.11 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 109], | 30.00th=[ 123], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 153], | 70.00th=[ 309], 80.00th=[ 414], 90.00th=[ 558], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 1422, max= 8192, per=67.05%, avg=4411.75, stdev=3285.44, samples=4 iops : min= 1, max= 8, avg= 3.75, stdev= 3.40, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=14.53%, ctx=185, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149759: Fri Jul 17 05:22:58 2026 read: IOPS=1, BW=1565KiB/s (1603kB/s)(6144KiB/3926msec) clat (usec): min=513, max=346646, avg=117630.97, stdev=126973.87 lat (usec): min=515, max=346647, avg=117632.42, stdev=126973.76 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 519], | 30.00th=[ 519], 40.00th=[ 99091], 50.00th=[ 99091], 60.00th=[121111], | 70.00th=[137364], 80.00th=[137364], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 4079, max= 5976, per=100.00%, avg=5027.50, stdev=1341.38, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1565KiB/s (1603kB/s)(6144KiB/3926msec); 0 zone resets clat (msec): min=107, max=1842, avg=516.37, stdev=656.45 lat (msec): min=107, max=1842, avg=516.45, stdev=656.45 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 326], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 1914, max= 2968, per=33.86%, avg=2228.25, stdev=495.85, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=16.03%, ctx=382, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149761: Fri Jul 17 05:22:58 2026 read: IOPS=1, BW=1232KiB/s (1262kB/s)(5120KiB/4156msec) clat (usec): min=489, max=182320, avg=99132.45, stdev=92099.64 lat (usec): min=491, max=182321, avg=99133.71, stdev=92099.46 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 562], 40.00th=[ 562], 50.00th=[132645], 60.00th=[132645], | 70.00th=[179307], 80.00th=[179307], 90.00th=[181404], 95.00th=[181404], | 99.00th=[181404], 99.50th=[181404], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1725KiB/s (1766kB/s)(7168KiB/4156msec); 0 zone resets clat (msec): min=152, max=1844, avg=498.88, stdev=610.37 lat (msec): min=152, max=1845, avg=498.95, stdev=610.38 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 245], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 567], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 1469, max= 4079, per=37.80%, avg=2487.33, stdev=1396.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=58.33%, 500=8.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.16%, 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=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=4700KiB/s (4813kB/s), 470KiB/s-1937KiB/s (481kB/s-1984kB/s), io=20.0MiB (20.0MB), run=3700-4357msec WRITE: bw=6581KiB/s (6739kB/s), 1384KiB/s-2350KiB/s (1417kB/s-2407kB/s), io=28.0MiB (29.4MB), run=3700-4357msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149754: Fri Jul 17 05:22:58 2026 read: IOPS=2, BW=2061KiB/s (2110kB/s)(7168KiB/3478msec) clat (msec): min=59, max=1451, avg=310.46, stdev=507.75 lat (msec): min=59, max=1451, avg=310.47, stdev=507.75 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 60], 10.00th=[ 60], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 102], 60.00th=[ 128], | 70.00th=[ 128], 80.00th=[ 264], 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= 4079, max= 5976, per=100.00%, avg=5027.50, stdev=1341.38, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1472KiB/s (1507kB/s)(5120KiB/3478msec); 0 zone resets clat (msec): min=144, max=439, avg=253.13, stdev=118.68 lat (msec): min=145, max=439, avg=253.33, stdev=118.52 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 211], 60.00th=[ 211], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1992, max= 4096, per=40.92%, avg=2705.00, stdev=1204.77, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=4.72%, ctx=73, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149756: Fri Jul 17 05:22:58 2026 read: IOPS=0, BW=472KiB/s (484kB/s)(2048KiB/4337msec) clat (msec): min=83, max=332, avg=208.37, stdev=176.02 lat (msec): min=83, max=332, avg=208.37, stdev=176.02 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 85], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 1356, max= 1914, per=34.63%, avg=1635.00, stdev=394.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2361KiB/s (2418kB/s)(10.0MiB/4337msec); 0 zone resets clat (msec): min=115, max=1724, avg=384.81, stdev=477.98 lat (msec): min=115, max=1724, avg=384.89, stdev=477.97 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 116], | 30.00th=[ 176], 40.00th=[ 226], 50.00th=[ 230], 60.00th=[ 284], | 70.00th=[ 305], 80.00th=[ 326], 90.00th=[ 351], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 1356, max= 6131, per=52.88%, avg=3496.20, stdev=1912.05, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=7.61%, ctx=78, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149758: Fri Jul 17 05:22:58 2026 read: IOPS=1, BW=1571KiB/s (1608kB/s)(6144KiB/3912msec) clat (msec): min=46, max=188, avg=126.81, stdev=55.39 lat (msec): min=46, max=188, avg=126.81, stdev=55.39 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 188], 95.00th=[ 188], | 99.00th=[ 188], 99.50th=[ 188], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 1914, max= 6131, per=70.85%, avg=3345.67, stdev=2412.48, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1571KiB/s (1608kB/s)(6144KiB/3912msec); 0 zone resets clat (msec): min=132, max=1699, avg=508.18, stdev=600.29 lat (msec): min=132, max=1699, avg=508.27, stdev=600.29 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 305], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 2039, max= 3984, per=40.94%, avg=2706.50, stdev=916.63, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=58.33%, 500=8.33%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.03%, sys=4.27%, ctx=141, 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=149760: Fri Jul 17 05:22:58 2026 read: IOPS=1, BW=1241KiB/s (1270kB/s)(5120KiB/4127msec) clat (msec): min=69, max=325, avg=186.87, stdev=106.62 lat (msec): min=69, max=325, avg=186.87, stdev=106.62 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 255], 80.00th=[ 255], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 1992, max= 3856, per=55.59%, avg=2625.00, stdev=1066.22, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1737KiB/s (1779kB/s)(7168KiB/4127msec); 0 zone resets clat (msec): min=114, max=1675, avg=442.17, stdev=566.74 lat (msec): min=114, max=1675, avg=442.26, stdev=566.75 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 117], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 182], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 558], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 1992, max= 5976, per=53.29%, avg=3522.75, stdev=1908.53, samples=4 iops : min= 1, max= 5, avg= 2.75, stdev= 2.06, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=5.40%, ctx=58, 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=4722KiB/s (4835kB/s), 472KiB/s-2061KiB/s (484kB/s-2110kB/s), io=20.0MiB (20.0MB), run=3478-4337msec WRITE: bw=6611KiB/s (6770kB/s), 1472KiB/s-2361KiB/s (1507kB/s-2418kB/s), io=28.0MiB (29.4MB), run=3478-4337msec 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=149768: Fri Jul 17 05:23:08 2026 read: IOPS=1, BW=4181KiB/s (4281kB/s)(12.0MiB/2939msec) clat (msec): min=520, max=1645, avg=915.47, stdev=632.58 lat (msec): min=520, max=1645, avg=915.47, stdev=632.58 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7984, max= 8192, per=100.00%, avg=8088.00, stdev=147.08, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=10.72%, ctx=182, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149769: Fri Jul 17 05:23:08 2026 read: IOPS=0, BW=1340KiB/s (1372kB/s)(4096KiB/3057msec) clat (nsec): min=1655.1M, max=1655.1M, avg=1655126018.00, stdev= 0.00 lat (nsec): min=1655.1M, max=1655.1M, avg=1655127003.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1653], 5.00th=[ 1653], 10.00th=[ 1653], 20.00th=[ 1653], | 30.00th=[ 1653], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2680KiB/s (2744kB/s)(8192KiB/3057msec); 0 zone resets clat (msec): min=470, max=848, avg=659.44, stdev=267.82 lat (msec): min=470, max=849, avg=659.83, stdev=267.83 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 852], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 8192, max= 8192, per=89.56%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.15%, ctx=518, 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=149770: Fri Jul 17 05:23:08 2026 write: IOPS=0, BW=3430KiB/s (3513kB/s)(12.0MiB/3582msec); 0 zone resets clat (msec): min=261, max=2130, avg=1170.55, stdev=935.54 lat (msec): min=261, max=2130, avg=1170.91, stdev=935.43 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 8192, max= 8192, per=89.56%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.88%, ctx=59, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149772: Fri Jul 17 05:23:08 2026 write: IOPS=0, BW=4045KiB/s (4142kB/s)(12.0MiB/3038msec); 0 zone resets clat (msec): min=438, max=1259, avg=914.61, stdev=425.82 lat (msec): min=438, max=1259, avg=914.95, stdev=425.91 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1045], | 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= 8126, max= 8175, per=89.11%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.10%, ctx=62, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5360KiB/s (5488kB/s), 1340KiB/s-4181KiB/s (1372kB/s-4281kB/s), io=16.0MiB (16.8MB), run=2939-3057msec WRITE: bw=9148KiB/s (9368kB/s), 2680KiB/s-4045KiB/s (2744kB/s-4142kB/s), io=32.0MiB (33.6MB), run=3038-3582msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149771: Fri Jul 17 05:23:09 2026 read: IOPS=0, BW=3252KiB/s (3330kB/s)(12.0MiB/3779msec) clat (msec): min=304, max=2201, avg=1234.18, stdev=948.86 lat (msec): min=304, max=2201, avg=1234.18, stdev=948.86 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7787, max= 8110, per=100.00%, avg=7948.50, stdev=228.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.46%, ctx=51, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=149773: Fri Jul 17 05:23:09 2026 read: IOPS=0, BW=1107KiB/s (1134kB/s)(4096KiB/3699msec) clat (nsec): min=2423.9M, max=2423.9M, avg=2423882380.00, stdev= 0.00 lat (nsec): min=2423.9M, max=2423.9M, avg=2423884895.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2433], 5.00th=[ 2433], 10.00th=[ 2433], 20.00th=[ 2433], | 30.00th=[ 2433], 40.00th=[ 2433], 50.00th=[ 2433], 60.00th=[ 2433], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2215KiB/s (2268kB/s)(8192KiB/3699msec); 0 zone resets clat (msec): min=400, max=818, avg=609.22, stdev=295.43 lat (msec): min=400, max=818, avg=609.63, stdev=295.55 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7787, max= 7787, per=87.91%, avg=7787.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.57%, ctx=38, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149774: Fri Jul 17 05:23:09 2026 write: IOPS=0, BW=3933KiB/s (4028kB/s)(12.0MiB/3124msec); 0 zone resets clat (msec): min=734, max=1447, avg=1032.32, stdev=370.69 lat (msec): min=734, max=1447, avg=1032.66, stdev=370.76 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8110, max= 8126, per=91.65%, avg=8118.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.60%, ctx=85, 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=149775: Fri Jul 17 05:23:09 2026 write: IOPS=1, BW=4130KiB/s (4230kB/s)(12.0MiB/2975msec); 0 zone resets clat (msec): min=244, max=1644, avg=969.81, stdev=701.50 lat (msec): min=244, max=1645, avg=970.17, stdev=701.43 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8078, max= 8078, per=91.19%, avg=8078.00, 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=0.07%, sys=3.19%, ctx=52, 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=4336KiB/s (4440kB/s), 1107KiB/s-3252KiB/s (1134kB/s-3330kB/s), io=16.0MiB (16.8MB), run=3699-3779msec WRITE: bw=8859KiB/s (9071kB/s), 2215KiB/s-4130KiB/s (2268kB/s-4230kB/s), io=32.0MiB (33.6MB), run=2975-3699msec