== sanity test 398b: DIO and buffer IO race ============== 01:15:35 (1783142135) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.69464 s, 7.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180337: Sat Jul 4 01:18:06 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5992KiB/130998msec) clat (usec): min=40, max=1034.5k, avg=48419.78, stdev=39133.79 lat (usec): min=40, max=1034.5k, avg=48422.52, stdev=39133.83 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 14746], 10.00th=[ 19792], | 20.00th=[ 25560], 30.00th=[ 30278], 40.00th=[ 35390], | 50.00th=[ 42206], 60.00th=[ 48497], 70.00th=[ 57410], | 80.00th=[ 67634], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[ 145753], 99.50th=[ 193987], 99.90th=[ 358613], | 99.95th=[1035994], 99.99th=[1035994] bw ( KiB/s): min= 6, max= 119, per=24.72%, avg=45.24, stdev=18.05, samples=259 iops : min= 1, max= 29, avg=10.65, stdev= 4.50, samples=259 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(6296KiB/130998msec); 0 zone resets clat (usec): min=1098, max=313405, avg=37026.97, stdev=37231.29 lat (usec): min=1099, max=313406, avg=37028.85, stdev=37231.17 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1614], 10.00th=[ 2638], 20.00th=[ 5211], | 30.00th=[ 9503], 40.00th=[ 19006], 50.00th=[ 26346], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 87557], 95.00th=[107480], | 99.00th=[162530], 99.50th=[187696], 99.90th=[299893], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 126, per=25.06%, avg=47.86, stdev=20.29, samples=257 iops : min= 1, max= 31, avg=11.31, stdev= 5.11, samples=257 lat (usec) : 50=0.13%, 100=1.07%, 250=0.16%, 500=0.10%, 750=0.03% lat (msec) : 2=3.68%, 4=4.13%, 10=8.11%, 20=8.95%, 50=40.27% lat (msec) : 100=27.80%, 250=5.44%, 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=5.25%, ctx=6898, 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=180338: Sat Jul 4 01:18:06 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5940KiB/129620msec) clat (usec): min=45, max=1019.4k, avg=48059.72, stdev=38339.96 lat (usec): min=46, max=1019.4k, avg=48061.70, stdev=38340.82 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 14615], 10.00th=[ 18744], | 20.00th=[ 25035], 30.00th=[ 30278], 40.00th=[ 35914], | 50.00th=[ 41681], 60.00th=[ 49021], 70.00th=[ 56886], | 80.00th=[ 66323], 90.00th=[ 81265], 95.00th=[ 101188], | 99.00th=[ 145753], 99.50th=[ 168821], 99.90th=[ 291505], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 104, per=24.85%, avg=45.48, stdev=18.97, samples=255 iops : min= 1, max= 26, avg=10.71, stdev= 4.76, samples=255 write: IOPS=12, BW=48.0KiB/s (50.1kB/s)(6348KiB/129620msec); 0 zone resets clat (usec): min=1206, max=359475, avg=36589.97, stdev=37298.80 lat (usec): min=1208, max=359477, avg=36610.34, stdev=37294.93 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1631], 10.00th=[ 2573], 20.00th=[ 4752], | 30.00th=[ 8979], 40.00th=[ 17695], 50.00th=[ 26346], 60.00th=[ 35390], | 70.00th=[ 45351], 80.00th=[ 63701], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[154141], 99.50th=[187696], 99.90th=[235930], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 126, per=25.59%, avg=48.89, stdev=20.35, samples=254 iops : min= 1, max= 31, avg=11.56, stdev= 5.12, samples=254 lat (usec) : 50=0.10%, 100=1.14%, 250=0.10%, 750=0.03% lat (msec) : 2=3.74%, 4=4.85%, 10=8.01%, 20=8.92%, 50=40.01% lat (msec) : 100=27.12%, 250=5.89%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=5.22%, ctx=7003, 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=180339: Sat Jul 4 01:18:06 2026 read: IOPS=11, BW=45.9KiB/s (47.1kB/s)(6028KiB/131188msec) clat (usec): min=34, max=252082, avg=47807.35, stdev=28970.15 lat (usec): min=34, max=252084, avg=47812.44, stdev=28968.64 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 15270], 10.00th=[ 20055], 20.00th=[ 25297], | 30.00th=[ 30802], 40.00th=[ 36439], 50.00th=[ 41681], 60.00th=[ 47973], | 70.00th=[ 56361], 80.00th=[ 67634], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[181404], 99.90th=[231736], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 8, max= 87, per=25.07%, avg=45.89, stdev=16.81, samples=256 iops : min= 2, max= 21, avg=10.81, stdev= 4.21, samples=256 write: IOPS=11, BW=47.7KiB/s (48.9kB/s)(6260KiB/131188msec); 0 zone resets clat (usec): min=1127, max=1114.2k, avg=37667.34, stdev=46158.29 lat (usec): min=1129, max=1114.2k, avg=37673.61, stdev=46158.91 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1598], 10.00th=[ 2311], | 20.00th=[ 4424], 30.00th=[ 8717], 40.00th=[ 18220], | 50.00th=[ 27919], 60.00th=[ 35914], 70.00th=[ 47973], | 80.00th=[ 64226], 90.00th=[ 87557], 95.00th=[ 109577], | 99.00th=[ 160433], 99.50th=[ 181404], 99.90th=[ 350225], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 7, max= 111, per=24.83%, avg=47.42, stdev=20.57, samples=257 iops : min= 1, max= 27, avg=11.20, stdev= 5.16, samples=257 lat (usec) : 50=0.07%, 100=1.20%, 250=0.03%, 500=0.16% lat (msec) : 2=4.17%, 4=4.75%, 10=7.65%, 20=8.01%, 50=41.02% lat (msec) : 100=27.31%, 250=5.50%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=5.17%, ctx=7025, 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=180340: Sat Jul 4 01:18:06 2026 read: IOPS=11, BW=46.5KiB/s (47.6kB/s)(6052KiB/130173msec) clat (usec): min=41, max=247006, avg=48180.78, stdev=29870.76 lat (usec): min=42, max=247007, avg=48183.00, stdev=29871.34 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 14615], 10.00th=[ 18744], 20.00th=[ 25035], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[154141], 99.50th=[181404], 99.90th=[206570], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 95, per=25.45%, avg=46.57, stdev=17.30, samples=254 iops : min= 1, max= 23, avg=10.98, stdev= 4.36, samples=254 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6236KiB/130173msec); 0 zone resets clat (usec): min=1110, max=1122.5k, avg=36576.62, stdev=45296.22 lat (usec): min=1111, max=1122.5k, avg=36581.30, stdev=45295.88 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1549], 10.00th=[ 2278], | 20.00th=[ 4686], 30.00th=[ 8455], 40.00th=[ 17433], | 50.00th=[ 26084], 60.00th=[ 33817], 70.00th=[ 46400], | 80.00th=[ 63701], 90.00th=[ 85459], 95.00th=[ 108528], | 99.00th=[ 160433], 99.50th=[ 177210], 99.90th=[ 283116], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 7, max= 120, per=25.10%, avg=47.94, stdev=20.01, samples=254 iops : min= 1, max= 30, avg=11.33, stdev= 5.01, samples=254 lat (usec) : 50=0.10%, 100=1.14%, 250=0.20%, 500=0.07%, 1000=0.03% lat (msec) : 2=4.23%, 4=4.62%, 10=7.81%, 20=9.15%, 50=39.42% lat (msec) : 100=27.31%, 250=5.86%, 500=0.03%, 2000=0.03% cpu : usr=0.08%, sys=5.21%, ctx=6993, 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=183KiB/s (187kB/s), 45.7KiB/s-46.5KiB/s (46.8kB/s-47.6kB/s), io=23.4MiB (24.6MB), run=129620-131188msec WRITE: bw=192KiB/s (196kB/s), 47.7KiB/s-48.0KiB/s (48.9kB/s-50.1kB/s), io=24.6MiB (25.7MB), run=129620-131188msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180332: Sat Jul 4 01:18:49 2026 read: IOPS=8, BW=34.5KiB/s (35.3kB/s)(5992KiB/173610msec) clat (msec): min=7, max=1059, avg=45.80, stdev=47.63 lat (msec): min=7, max=1059, avg=45.81, stdev=47.63 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 99], 95.00th=[ 132], | 99.00th=[ 184], 99.50th=[ 230], 99.90th=[ 317], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 119, per=25.05%, avg=34.57, stdev=23.88, samples=335 iops : min= 1, max= 29, avg= 7.95, stdev= 5.99, samples=335 write: IOPS=9, BW=36.3KiB/s (37.1kB/s)(6296KiB/173610msec); 0 zone resets clat (msec): min=13, max=368, avg=66.45, stdev=46.06 lat (msec): min=13, max=368, avg=66.45, stdev=46.06 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 63], | 70.00th=[ 79], 80.00th=[ 94], 90.00th=[ 126], 95.00th=[ 161], | 99.00th=[ 228], 99.50th=[ 268], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 111, per=25.04%, avg=36.06, stdev=21.35, samples=338 iops : min= 1, max= 27, avg= 8.32, stdev= 5.36, samples=338 lat (msec) : 10=0.85%, 20=12.70%, 50=46.94%, 100=25.65%, 250=13.28% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.07%, sys=2.20%, ctx=5102, 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=180333: Sat Jul 4 01:18:49 2026 read: IOPS=8, BW=34.4KiB/s (35.2kB/s)(5940KiB/172587msec) clat (msec): min=5, max=1041, avg=45.37, stdev=47.14 lat (msec): min=5, max=1041, avg=45.37, stdev=47.14 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 102], 95.00th=[ 133], | 99.00th=[ 184], 99.50th=[ 226], 99.90th=[ 300], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 126, per=25.23%, avg=34.82, stdev=24.57, samples=331 iops : min= 1, max= 31, avg= 8.01, stdev= 6.17, samples=331 write: IOPS=9, BW=36.8KiB/s (37.7kB/s)(6348KiB/172587msec); 0 zone resets clat (msec): min=12, max=392, avg=66.05, stdev=46.34 lat (msec): min=12, max=392, avg=66.05, stdev=46.34 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 97], 90.00th=[ 127], 95.00th=[ 157], | 99.00th=[ 220], 99.50th=[ 292], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 118, per=25.39%, avg=36.57, stdev=21.75, samples=336 iops : min= 1, max= 29, avg= 8.45, stdev= 5.47, samples=336 lat (msec) : 10=1.01%, 20=13.15%, 50=46.88%, 100=24.19%, 250=14.26% lat (msec) : 500=0.49%, 2000=0.03% cpu : usr=0.06%, sys=2.26%, ctx=5117, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180334: Sat Jul 4 01:18:49 2026 read: IOPS=8, BW=34.7KiB/s (35.6kB/s)(6028KiB/173476msec) clat (msec): min=5, max=327, avg=45.42, stdev=38.99 lat (msec): min=5, max=327, avg=45.42, stdev=38.99 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 97], 95.00th=[ 130], | 99.00th=[ 188], 99.50th=[ 218], 99.90th=[ 288], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 135, per=25.13%, avg=34.68, stdev=22.71, samples=337 iops : min= 1, max= 33, avg= 7.97, stdev= 5.70, samples=337 write: IOPS=9, BW=36.1KiB/s (36.0kB/s)(6260KiB/173476msec); 0 zone resets clat (msec): min=14, max=1084, avg=66.87, stdev=51.65 lat (msec): min=14, max=1084, avg=66.87, stdev=51.65 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 65], | 70.00th=[ 78], 80.00th=[ 97], 90.00th=[ 127], 95.00th=[ 159], | 99.00th=[ 226], 99.50th=[ 253], 99.90th=[ 380], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 111, per=24.93%, avg=35.91, stdev=22.32, samples=338 iops : min= 1, max= 27, avg= 8.28, stdev= 5.60, samples=338 lat (msec) : 10=0.62%, 20=12.63%, 50=46.00%, 100=26.69%, 250=13.70% lat (msec) : 500=0.33%, 2000=0.03% cpu : usr=0.06%, sys=2.29%, ctx=5186, 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=180335: Sat Jul 4 01:18:49 2026 read: IOPS=8, BW=34.8KiB/s (35.7kB/s)(6052KiB/173791msec) clat (msec): min=5, max=270, avg=45.25, stdev=38.58 lat (msec): min=5, max=270, avg=45.26, stdev=38.58 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 65], 90.00th=[ 100], 95.00th=[ 128], | 99.00th=[ 182], 99.50th=[ 218], 99.90th=[ 262], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 143, per=25.48%, avg=35.16, stdev=23.50, samples=334 iops : min= 1, max= 35, avg= 8.10, stdev= 5.90, samples=334 write: IOPS=8, BW=35.9KiB/s (36.7kB/s)(6236KiB/173791msec); 0 zone resets clat (msec): min=13, max=1094, avg=67.30, stdev=52.13 lat (msec): min=13, max=1094, avg=67.30, stdev=52.13 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 79], 80.00th=[ 100], 90.00th=[ 130], 95.00th=[ 161], | 99.00th=[ 211], 99.50th=[ 241], 99.90th=[ 397], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 119, per=24.87%, avg=35.81, stdev=21.76, samples=338 iops : min= 1, max= 29, avg= 8.26, stdev= 5.46, samples=338 lat (msec) : 10=0.94%, 20=11.95%, 50=47.14%, 100=25.23%, 250=14.45% lat (msec) : 500=0.26%, 2000=0.03% cpu : usr=0.06%, sys=2.22%, ctx=5253, 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=138KiB/s (141kB/s), 34.4KiB/s-34.8KiB/s (35.2kB/s-35.7kB/s), io=23.4MiB (24.6MB), run=172587-173791msec WRITE: bw=145KiB/s (148kB/s), 35.9KiB/s-36.8KiB/s (36.7kB/s-37.7kB/s), io=24.6MiB (25.7MB), run=172587-173791msec 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=180386: Sat Jul 4 01:19:33 2026 read: IOPS=11, BW=181KiB/s (186kB/s)(5920KiB/32650msec) clat (usec): min=40, max=273970, avg=44995.57, stdev=34799.88 lat (usec): min=41, max=273970, avg=44998.53, stdev=34798.40 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 98], 20.00th=[ 23200], | 30.00th=[ 29754], 40.00th=[ 34341], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 54264], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[212861], 99.50th=[238027], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 377, per=25.84%, avg=181.64, stdev=68.59, samples=64 iops : min= 1, max= 23, avg=10.58, stdev= 4.35, samples=64 write: IOPS=12, BW=195KiB/s (200kB/s)(6368KiB/32650msec); 0 zone resets clat (usec): min=1766, max=194671, avg=40067.35, stdev=35804.80 lat (usec): min=1769, max=194674, avg=40073.42, stdev=35805.61 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2966], 10.00th=[ 4686], 20.00th=[ 7767], | 30.00th=[ 12387], 40.00th=[ 21627], 50.00th=[ 32113], 60.00th=[ 40109], | 70.00th=[ 50594], 80.00th=[ 69731], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[164627], 99.50th=[185598], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 62, max= 414, per=26.37%, avg=195.12, stdev=82.02, samples=64 iops : min= 3, max= 25, avg=11.42, stdev= 5.20, samples=64 lat (usec) : 50=0.52%, 100=4.30%, 250=0.91%, 500=0.13%, 750=0.26% lat (msec) : 2=0.78%, 4=3.78%, 10=8.72%, 20=8.33%, 50=39.32% lat (msec) : 100=26.95%, 250=5.86%, 500=0.13% cpu : usr=0.08%, sys=6.54%, ctx=1873, 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=180387: Sat Jul 4 01:19:33 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5744KiB/34048msec) clat (usec): min=53, max=215919, avg=52116.12, stdev=33862.73 lat (usec): min=55, max=215920, avg=52117.42, stdev=33862.76 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 83], 10.00th=[ 18220], 20.00th=[ 25822], | 30.00th=[ 34341], 40.00th=[ 39584], 50.00th=[ 46924], 60.00th=[ 54789], | 70.00th=[ 63177], 80.00th=[ 73925], 90.00th=[ 95945], 95.00th=[108528], | 99.00th=[170918], 99.50th=[202376], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 61, max= 412, per=23.83%, avg=167.49, stdev=61.05, samples=67 iops : min= 3, max= 25, avg= 9.69, stdev= 3.88, samples=67 write: IOPS=12, BW=192KiB/s (197kB/s)(6544KiB/34048msec); 0 zone resets clat (usec): min=1633, max=219900, avg=37381.64, stdev=37044.63 lat (usec): min=1635, max=219903, avg=37386.08, stdev=37044.08 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 3195], 10.00th=[ 4424], 20.00th=[ 7046], | 30.00th=[ 11207], 40.00th=[ 19268], 50.00th=[ 26346], 60.00th=[ 33424], | 70.00th=[ 44303], 80.00th=[ 61604], 90.00th=[ 90702], 95.00th=[117965], | 99.00th=[164627], 99.50th=[193987], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 62, max= 380, per=25.76%, avg=190.60, stdev=78.34, samples=67 iops : min= 3, max= 23, avg=11.15, stdev= 4.96, samples=67 lat (usec) : 100=2.60%, 250=0.52% lat (msec) : 2=1.04%, 4=3.78%, 10=10.03%, 20=10.03%, 50=36.85% lat (msec) : 100=27.34%, 250=7.81% cpu : usr=0.08%, sys=6.12%, ctx=1899, 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=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=180388: Sat Jul 4 01:19:33 2026 read: IOPS=11, BW=188KiB/s (192kB/s)(6256KiB/33339msec) clat (usec): min=41, max=180393, avg=48045.65, stdev=31121.91 lat (usec): min=41, max=180394, avg=48047.54, stdev=31121.13 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 70], 10.00th=[ 1991], 20.00th=[ 24773], | 30.00th=[ 31589], 40.00th=[ 38011], 50.00th=[ 44303], 60.00th=[ 51643], | 70.00th=[ 58459], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[104334], | 99.00th=[145753], 99.50th=[162530], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 349, per=26.58%, avg=186.83, stdev=71.26, samples=65 iops : min= 1, max= 21, avg=10.91, stdev= 4.50, samples=65 write: IOPS=11, BW=181KiB/s (185kB/s)(6032KiB/33339msec); 0 zone resets clat (usec): min=1868, max=261440, avg=38482.62, stdev=38863.56 lat (usec): min=1870, max=261442, avg=38496.62, stdev=38874.26 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 11], 40.00th=[ 18], 50.00th=[ 27], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 91], 95.00th=[ 114], | 99.00th=[ 165], 99.50th=[ 220], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 31, max= 384, per=24.36%, avg=180.27, stdev=87.02, samples=64 iops : min= 1, max= 24, avg=10.50, stdev= 5.52, samples=64 lat (usec) : 50=0.39%, 100=3.65%, 250=0.65%, 500=0.13%, 750=0.13% lat (msec) : 2=0.65%, 4=3.39%, 10=10.68%, 20=8.33%, 50=36.98% lat (msec) : 100=27.73%, 250=7.16%, 500=0.13% cpu : usr=0.07%, sys=6.38%, ctx=1854, 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=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=180389: Sat Jul 4 01:19:33 2026 read: IOPS=11, BW=186KiB/s (190kB/s)(6032KiB/32501msec) clat (usec): min=54, max=263492, avg=45847.23, stdev=31633.27 lat (usec): min=55, max=263493, avg=45848.95, stdev=31633.37 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 67], 10.00th=[ 98], 20.00th=[ 22938], | 30.00th=[ 30016], 40.00th=[ 35914], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 57934], 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[ 98042], | 99.00th=[145753], 99.50th=[196084], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 62, max= 348, per=26.14%, avg=183.78, stdev=73.18, samples=64 iops : min= 3, max= 21, avg=10.70, stdev= 4.62, samples=64 write: IOPS=12, BW=192KiB/s (197kB/s)(6256KiB/32501msec); 0 zone resets clat (usec): min=1509, max=171440, avg=38774.28, stdev=37770.36 lat (usec): min=1512, max=171443, avg=38789.63, stdev=37763.56 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2638], 10.00th=[ 4080], 20.00th=[ 6849], | 30.00th=[ 9765], 40.00th=[ 15926], 50.00th=[ 26346], 60.00th=[ 34341], | 70.00th=[ 53740], 80.00th=[ 66847], 90.00th=[ 95945], 95.00th=[116917], | 99.00th=[162530], 99.50th=[166724], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 31, max= 415, per=25.97%, avg=192.19, stdev=83.57, samples=64 iops : min= 1, max= 25, avg=11.23, stdev= 5.29, samples=64 lat (usec) : 100=5.21%, 250=1.04% lat (msec) : 2=1.30%, 4=3.78%, 10=10.68%, 20=8.46%, 50=34.38% lat (msec) : 100=27.99%, 250=7.03%, 500=0.13% cpu : usr=0.08%, sys=6.30%, ctx=1802, 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=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=703KiB/s (720kB/s), 169KiB/s-188KiB/s (173kB/s-192kB/s), io=23.4MiB (24.5MB), run=32501-34048msec WRITE: bw=740KiB/s (758kB/s), 181KiB/s-195KiB/s (185kB/s-200kB/s), io=24.6MiB (25.8MB), run=32501-34048msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180381: Sat Jul 4 01:19:45 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5920KiB/46004msec) clat (msec): min=7, max=228, avg=47.84, stdev=40.63 lat (msec): min=7, max=228, avg=47.85, stdev=40.63 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 71], 90.00th=[ 112], 95.00th=[ 140], | 99.00th=[ 197], 99.50th=[ 209], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 31, max= 375, per=25.64%, avg=132.56, stdev=83.28, samples=88 iops : min= 1, max= 23, avg= 7.53, stdev= 5.29, samples=88 write: IOPS=8, BW=138KiB/s (142kB/s)(6368KiB/46004msec); 0 zone resets clat (msec): min=16, max=340, avg=70.54, stdev=44.50 lat (msec): min=16, max=340, avg=70.54, stdev=44.50 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 28], 10.00th=[ 31], 20.00th=[ 36], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 59], 60.00th=[ 71], | 70.00th=[ 84], 80.00th=[ 101], 90.00th=[ 124], 95.00th=[ 157], | 99.00th=[ 241], 99.50th=[ 296], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 352, per=25.36%, avg=137.96, stdev=77.43, samples=91 iops : min= 1, max= 22, avg= 7.87, stdev= 4.94, samples=91 lat (msec) : 10=0.26%, 20=9.64%, 50=46.88%, 100=27.34%, 250=15.63% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.37%, ctx=1312, 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=180382: Sat Jul 4 01:19:45 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5744KiB/46277msec) clat (msec): min=7, max=258, avg=46.97, stdev=38.03 lat (msec): min=7, max=258, avg=46.97, stdev=38.03 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 69], 90.00th=[ 102], 95.00th=[ 128], | 99.00th=[ 188], 99.50th=[ 201], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 30, max= 349, per=24.44%, avg=126.36, stdev=77.10, samples=88 iops : min= 1, max= 21, avg= 7.15, stdev= 4.92, samples=88 write: IOPS=8, BW=141KiB/s (145kB/s)(6544KiB/46277msec); 0 zone resets clat (msec): min=15, max=324, avg=71.39, stdev=49.69 lat (msec): min=15, max=324, avg=71.40, stdev=49.69 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 63], | 70.00th=[ 81], 80.00th=[ 105], 90.00th=[ 142], 95.00th=[ 178], | 99.00th=[ 226], 99.50th=[ 239], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 407, per=25.61%, avg=139.31, stdev=82.69, samples=91 iops : min= 1, max= 25, avg= 7.96, stdev= 5.28, samples=91 lat (msec) : 10=0.65%, 20=9.24%, 50=46.61%, 100=27.47%, 250=15.63% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.31%, ctx=1357, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180383: Sat Jul 4 01:19:45 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(6256KiB/45665msec) clat (msec): min=7, max=222, avg=46.37, stdev=37.77 lat (msec): min=7, max=222, avg=46.37, stdev=37.77 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 96], 95.00th=[ 130], | 99.00th=[ 188], 99.50th=[ 207], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 480, per=27.11%, avg=140.16, stdev=93.40, samples=88 iops : min= 1, max= 30, avg= 8.01, stdev= 5.96, samples=88 write: IOPS=8, BW=132KiB/s (135kB/s)(6032KiB/45665msec); 0 zone resets clat (msec): min=19, max=330, avg=72.54, stdev=48.76 lat (msec): min=19, max=330, avg=72.55, stdev=48.76 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 28], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 60], 60.00th=[ 68], | 70.00th=[ 81], 80.00th=[ 105], 90.00th=[ 133], 95.00th=[ 167], | 99.00th=[ 253], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 349, per=24.27%, avg=132.02, stdev=70.53, samples=89 iops : min= 1, max= 21, avg= 7.51, stdev= 4.46, samples=89 lat (msec) : 10=0.39%, 20=8.98%, 50=47.66%, 100=27.47%, 250=14.97% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.33%, ctx=1293, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180384: Sat Jul 4 01:19:45 2026 read: IOPS=8, BW=131KiB/s (135kB/s)(6032KiB/45922msec) clat (msec): min=8, max=223, avg=48.80, stdev=37.94 lat (msec): min=8, max=223, avg=48.80, stdev=37.94 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 109], 95.00th=[ 138], | 99.00th=[ 182], 99.50th=[ 188], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 29, max= 380, per=25.56%, avg=132.16, stdev=76.67, samples=88 iops : min= 1, max= 23, avg= 7.50, stdev= 4.84, samples=88 write: IOPS=8, BW=136KiB/s (140kB/s)(6256KiB/45922msec); 0 zone resets clat (msec): min=18, max=327, avg=70.16, stdev=46.75 lat (msec): min=18, max=327, avg=70.17, stdev=46.74 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 81], 80.00th=[ 101], 90.00th=[ 129], 95.00th=[ 167], | 99.00th=[ 243], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 384, per=24.65%, avg=134.11, stdev=78.23, samples=90 iops : min= 1, max= 24, avg= 7.63, stdev= 5.00, samples=90 lat (msec) : 10=0.26%, 20=8.20%, 50=47.66%, 100=28.13%, 250=15.49% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=2.27%, ctx=1318, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=518KiB/s (530kB/s), 124KiB/s-137KiB/s (127kB/s-140kB/s), io=23.4MiB (24.5MB), run=45665-46277msec WRITE: bw=545KiB/s (558kB/s), 132KiB/s-141KiB/s (135kB/s-145kB/s), io=24.6MiB (25.8MB), run=45665-46277msec 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=180406: Sat Jul 4 01:20:01 2026 read: IOPS=1, BW=1247KiB/s (1277kB/s)(7168KiB/5750msec) clat (usec): min=1497, max=2742.2k, avg=595775.68, stdev=958576.74 lat (usec): min=1499, max=2742.2k, avg=595777.39, stdev=958576.54 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1500], 10.00th=[ 1500], | 20.00th=[ 166724], 30.00th=[ 200279], 40.00th=[ 200279], | 50.00th=[ 263193], 60.00th=[ 287310], 70.00th=[ 287310], | 80.00th=[ 505414], 90.00th=[2734687], 95.00th=[2734687], | 99.00th=[2734687], 99.50th=[2734687], 99.90th=[2734687], | 99.95th=[2734687], 99.99th=[2734687] bw ( KiB/s): min= 1577, max= 4079, per=78.40%, avg=2354.25, stdev=1166.27, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=890KiB/s (912kB/s)(5120KiB/5750msec); 0 zone resets clat (msec): min=210, max=435, avg=315.32, stdev=92.00 lat (msec): min=210, max=435, avg=315.53, stdev=91.95 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 2035, max= 4023, per=64.22%, avg=2700.33, stdev=1145.47, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=16.04%, ctx=590, 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=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=180407: Sat Jul 4 01:20:01 2026 read: IOPS=0, BW=300KiB/s (308kB/s)(2048KiB/6818msec) clat (usec): min=729, max=175304, avg=88017.09, stdev=123442.68 lat (usec): min=732, max=175307, avg=88019.90, stdev=123443.35 clat percentiles (usec): | 1.00th=[ 734], 5.00th=[ 734], 10.00th=[ 734], 20.00th=[ 734], | 30.00th=[ 734], 40.00th=[ 734], 50.00th=[ 734], 60.00th=[175113], | 70.00th=[175113], 80.00th=[175113], 90.00th=[175113], 95.00th=[175113], | 99.00th=[175113], 99.50th=[175113], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 1673, max= 2035, per=61.74%, avg=1854.00, stdev=255.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1502KiB/s (1538kB/s)(10.0MiB/6818msec); 0 zone resets clat (msec): min=186, max=3218, avg=663.77, stdev=915.03 lat (msec): min=186, max=3218, avg=663.87, stdev=915.02 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 220], | 30.00th=[ 232], 40.00th=[ 305], 50.00th=[ 321], 60.00th=[ 355], | 70.00th=[ 502], 80.00th=[ 535], 90.00th=[ 768], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 1718, max= 6071, per=61.02%, avg=2565.86, stdev=1550.16, samples=7 iops : min= 1, max= 5, avg= 1.71, stdev= 1.50, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=14.57%, ctx=220, 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=180408: Sat Jul 4 01:20:01 2026 read: IOPS=1, BW=1085KiB/s (1111kB/s)(6144KiB/5662msec) clat (usec): min=572, max=368536, avg=140529.67, stdev=160763.98 lat (usec): min=574, max=368538, avg=140531.32, stdev=160764.02 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 685], | 30.00th=[ 685], 40.00th=[ 840], 50.00th=[ 840], 60.00th=[225444], | 70.00th=[246416], 80.00th=[246416], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 1718, max= 2035, per=63.98%, avg=1921.33, stdev=176.50, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 write: IOPS=1, BW=1085KiB/s (1111kB/s)(6144KiB/5662msec); 0 zone resets clat (msec): min=118, max=3623, avg=796.86, stdev=1388.30 lat (msec): min=118, max=3623, avg=796.94, stdev=1388.29 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 279], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 3608], 95.00th=[ 3608], | 99.00th=[ 3608], 99.50th=[ 3608], 99.90th=[ 3608], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 1718, max= 3390, per=56.62%, avg=2381.00, stdev=888.08, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67%, 1000=8.33% lat (msec) : 250=41.67%, 500=25.00%, >=2000=8.33% cpu : usr=0.05%, sys=8.94%, ctx=122, 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=180409: Sat Jul 4 01:20:01 2026 read: IOPS=0, BW=774KiB/s (792kB/s)(5120KiB/6619msec) clat (usec): min=762, max=419855, avg=177836.91, stdev=178552.18 lat (usec): min=763, max=419857, avg=177838.34, stdev=178552.24 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 766], 10.00th=[ 766], 20.00th=[ 766], | 30.00th=[ 873], 40.00th=[ 873], 50.00th=[231736], 60.00th=[231736], | 70.00th=[235930], 80.00th=[235930], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 2035, max= 6107, per=100.00%, avg=4071.00, stdev=2879.34, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1083KiB/s (1109kB/s)(7168KiB/6619msec); 0 zone resets clat (msec): min=199, max=3294, avg=814.62, stdev=1104.05 lat (msec): min=199, max=3294, avg=814.74, stdev=1104.07 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 220], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 460], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 634], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1712, max= 3436, per=54.59%, avg=2295.50, stdev=773.82, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=16.67% lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=12.47%, ctx=176, 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=3004KiB/s (3076kB/s), 300KiB/s-1247KiB/s (308kB/s-1277kB/s), io=20.0MiB (20.0MB), run=5662-6818msec WRITE: bw=4205KiB/s (4306kB/s), 890KiB/s-1502KiB/s (912kB/s-1538kB/s), io=28.0MiB (29.4MB), run=5662-6818msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180401: Sat Jul 4 01:20:01 2026 read: IOPS=1, BW=1418KiB/s (1452kB/s)(7168KiB/5055msec) clat (msec): min=78, max=2340, avg=494.25, stdev=819.66 lat (msec): min=78, max=2340, avg=494.25, stdev=819.66 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 104], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 368], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2043, max= 3842, per=100.00%, avg=3221.00, stdev=1020.68, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=1013KiB/s (1037kB/s)(5120KiB/5055msec); 0 zone resets clat (msec): min=131, max=586, avg=296.98, stdev=196.43 lat (msec): min=131, max=586, avg=297.06, stdev=196.46 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 203], 60.00th=[ 203], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1921, max= 4096, per=71.68%, avg=2686.67, stdev=1222.04, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.76%, ctx=110, 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=180402: Sat Jul 4 01:20:01 2026 read: IOPS=0, BW=268KiB/s (274kB/s)(2048KiB/7649msec) clat (msec): min=110, max=490, avg=300.43, stdev=268.54 lat (msec): min=110, max=490, avg=300.43, stdev=268.54 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1878, max= 2015, per=72.71%, avg=1946.50, stdev=96.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1339KiB/s (1371kB/s)(10.0MiB/7649msec); 0 zone resets clat (msec): min=137, max=2963, avg=701.65, stdev=832.79 lat (msec): min=138, max=2963, avg=701.79, stdev=832.77 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 226], | 30.00th=[ 262], 40.00th=[ 326], 50.00th=[ 372], 60.00th=[ 477], | 70.00th=[ 575], 80.00th=[ 726], 90.00th=[ 961], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 1878, max= 2048, per=53.30%, avg=1997.57, stdev=76.04, samples=7 iops : min= 1, max= 2, avg= 1.29, stdev= 0.49, samples=7 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.87%, ctx=119, 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=180403: Sat Jul 4 01:20:01 2026 read: IOPS=0, BW=860KiB/s (881kB/s)(6144KiB/7145msec) clat (msec): min=104, max=784, avg=316.34, stdev=260.24 lat (msec): min=104, max=784, avg=316.34, stdev=260.24 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 264], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1896, max= 2048, per=75.05%, avg=2009.00, stdev=63.75, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=860KiB/s (881kB/s)(6144KiB/7145msec); 0 zone resets clat (msec): min=189, max=3147, avg=856.38, stdev=1130.06 lat (msec): min=189, max=3147, avg=856.49, stdev=1130.06 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 477], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 1878, max= 2043, per=52.76%, avg=1977.40, stdev=83.03, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.39%, ctx=109, 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=180404: Sat Jul 4 01:20:01 2026 read: IOPS=0, BW=759KiB/s (777kB/s)(5120KiB/6745msec) clat (msec): min=112, max=606, avg=364.98, stdev=240.09 lat (msec): min=112, max=606, avg=364.99, stdev=240.09 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 3792, max= 4063, per=100.00%, avg=3927.50, stdev=191.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1063KiB/s (1088kB/s)(7168KiB/6745msec); 0 zone resets clat (msec): min=166, max=3290, avg=688.92, stdev=1150.35 lat (msec): min=166, max=3290, avg=689.05, stdev=1150.35 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 259], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 384], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1903, max= 6131, per=93.45%, avg=3502.50, stdev=2022.69, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.04%, sys=6.41%, ctx=107, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2677KiB/s (2742kB/s), 268KiB/s-1418KiB/s (274kB/s-1452kB/s), io=20.0MiB (20.0MB), run=5055-7649msec WRITE: bw=3748KiB/s (3838kB/s), 860KiB/s-1339KiB/s (881kB/s-1371kB/s), io=28.0MiB (29.4MB), run=5055-7649msec 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=180416: Sat Jul 4 01:20:13 2026 read: IOPS=1, BW=5343KiB/s (5471kB/s)(12.0MiB/2300msec) clat (msec): min=668, max=748, avg=704.41, stdev=40.93 lat (msec): min=668, max=748, avg=704.42, stdev=40.93 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8094, max= 8159, per=100.00%, avg=8126.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=16.83%, ctx=323, 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=180417: Sat Jul 4 01:20:13 2026 read: IOPS=0, BW=1753KiB/s (1796kB/s)(4096KiB/2336msec) clat (nsec): min=681096k, max=681096k, avg=681096041.00, stdev= 0.00 lat (nsec): min=681097k, max=681097k, avg=681097348.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] 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 write: IOPS=0, BW=3507KiB/s (3591kB/s)(8192KiB/2336msec); 0 zone resets clat (msec): min=475, max=1077, avg=776.61, stdev=425.52 lat (msec): min=479, max=1077, avg=778.73, stdev=422.78 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8126, max= 8126, per=71.17%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.55%, ctx=102, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180418: Sat Jul 4 01:20:13 2026 write: IOPS=1, BW=4282KiB/s (4384kB/s)(12.0MiB/2870msec); 0 zone resets clat (msec): min=311, max=1620, avg=916.55, stdev=660.08 lat (msec): min=312, max=1620, avg=917.08, stdev=660.04 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8159, max= 8175, per=71.53%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.33%, ctx=97, 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=180419: Sat Jul 4 01:20:13 2026 write: IOPS=1, BW=6978KiB/s (7145kB/s)(12.0MiB/1761msec); 0 zone resets clat (msec): min=252, max=1072, avg=535.50, stdev=464.87 lat (msec): min=252, max=1072, avg=535.87, stdev=464.81 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 8031, max= 8159, per=70.90%, avg=8095.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=8.35%, 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=7014KiB/s (7182kB/s), 1753KiB/s-5343KiB/s (1796kB/s-5471kB/s), io=16.0MiB (16.8MB), run=2300-2336msec WRITE: bw=11.1MiB/s (11.7MB/s), 3507KiB/s-6978KiB/s (3591kB/s-7145kB/s), io=32.0MiB (33.6MB), run=1761-2870msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180421: Sat Jul 4 01:20:13 2026 read: IOPS=1, BW=5118KiB/s (5241kB/s)(12.0MiB/2401msec) clat (msec): min=175, max=1219, avg=789.97, stdev=545.95 lat (msec): min=175, max=1219, avg=789.98, stdev=545.95 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.92%, ctx=45, 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=180422: Sat Jul 4 01:20:13 2026 read: IOPS=0, BW=1916KiB/s (1962kB/s)(4096KiB/2138msec) clat (nsec): min=568114k, max=568114k, avg=568113592.00, stdev= 0.00 lat (nsec): min=568117k, max=568117k, avg=568116879.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3832KiB/s (3924kB/s)(8192KiB/2138msec); 0 zone resets clat (msec): min=670, max=893, avg=782.29, stdev=157.40 lat (msec): min=672, max=893, avg=783.40, stdev=156.24 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8126, max= 8126, per=62.94%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.19%, sys=5.47%, ctx=46, 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=180423: Sat Jul 4 01:20:13 2026 write: IOPS=1, BW=4842KiB/s (4958kB/s)(12.0MiB/2538msec); 0 zone resets clat (msec): min=149, max=1410, avg=837.90, stdev=638.18 lat (msec): min=150, max=1412, avg=838.85, stdev=638.81 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 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= 8126, max= 8126, per=62.94%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=3.86%, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=180424: Sat Jul 4 01:20:13 2026 write: IOPS=1, BW=7520KiB/s (7701kB/s)(12.0MiB/1634msec); 0 zone resets clat (msec): min=181, max=1111, avg=541.79, stdev=499.19 lat (msec): min=184, max=1111, avg=543.82, stdev=497.74 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 5893, max= 5893, per=45.65%, avg=5893.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.19%, ctx=64, 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=6824KiB/s (6988kB/s), 1916KiB/s-5118KiB/s (1962kB/s-5241kB/s), io=16.0MiB (16.8MB), run=2138-2401msec WRITE: bw=12.6MiB/s (13.2MB/s), 3832KiB/s-7520KiB/s (3924kB/s-7701kB/s), io=32.0MiB (33.6MB), run=1634-2538msec