== sanity test 398b: DIO and buffer IO race ============== 18:02:38 (1790978558) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.53555 s, 11.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179980: Fri Oct 2 18:05:15 2026 read: IOPS=10, BW=43.4KiB/s (44.5kB/s)(5992KiB/138019msec) clat (usec): min=31, max=285925, avg=50313.27, stdev=36202.32 lat (usec): min=32, max=285926, avg=50314.70, stdev=36202.13 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 1303], 10.00th=[ 15795], 20.00th=[ 23200], | 30.00th=[ 29492], 40.00th=[ 35914], 50.00th=[ 42206], 60.00th=[ 50070], | 70.00th=[ 59507], 80.00th=[ 74974], 90.00th=[ 95945], 95.00th=[113771], | 99.00th=[179307], 99.50th=[217056], 99.90th=[274727], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 102, per=25.08%, avg=42.89, stdev=18.28, samples=270 iops : min= 1, max= 25, avg=10.07, stdev= 4.61, samples=270 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6296KiB/138019msec); 0 zone resets clat (usec): min=634, max=1015.2k, avg=39405.28, stdev=47816.24 lat (usec): min=635, max=1015.2k, avg=39411.19, stdev=47814.04 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1172], 10.00th=[ 1450], | 20.00th=[ 3490], 30.00th=[ 7111], 40.00th=[ 15664], | 50.00th=[ 26870], 60.00th=[ 38536], 70.00th=[ 50594], | 80.00th=[ 67634], 90.00th=[ 94897], 95.00th=[ 122160], | 99.00th=[ 175113], 99.50th=[ 219153], 99.90th=[ 254804], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 111, per=25.55%, avg=45.73, stdev=21.69, samples=267 iops : min= 1, max= 27, avg=10.78, stdev= 5.45, samples=267 lat (usec) : 50=0.42%, 100=1.79%, 250=0.10%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.29% lat (msec) : 2=6.71%, 4=4.33%, 10=6.35%, 20=9.77%, 50=34.73% lat (msec) : 100=26.92%, 250=8.30%, 500=0.10%, 2000=0.03% cpu : usr=0.06%, sys=4.13%, ctx=6171, 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=179982: Fri Oct 2 18:05:15 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5940KiB/138847msec) clat (usec): min=33, max=1136.4k, avg=52157.40, stdev=46960.67 lat (usec): min=33, max=1136.4k, avg=52159.21, stdev=46961.10 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11076], 10.00th=[ 17433], | 20.00th=[ 23725], 30.00th=[ 29754], 40.00th=[ 35914], | 50.00th=[ 43254], 60.00th=[ 50594], 70.00th=[ 59507], | 80.00th=[ 73925], 90.00th=[ 94897], 95.00th=[ 115868], | 99.00th=[ 198181], 99.50th=[ 227541], 99.90th=[ 316670], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 103, per=25.19%, avg=43.07, stdev=18.57, samples=268 iops : min= 1, max= 25, avg=10.11, stdev= 4.66, samples=268 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(6348KiB/138847msec); 0 zone resets clat (usec): min=697, max=310236, avg=38286.98, stdev=41340.83 lat (usec): min=698, max=310237, avg=38290.50, stdev=41341.84 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1319], 20.00th=[ 2999], | 30.00th=[ 6783], 40.00th=[ 16581], 50.00th=[ 26084], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 66847], 90.00th=[ 98042], 95.00th=[121111], | 99.00th=[177210], 99.50th=[202376], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 148, per=25.75%, avg=46.10, stdev=25.04, samples=268 iops : min= 1, max= 37, avg=10.88, stdev= 6.32, samples=268 lat (usec) : 50=0.39%, 100=1.46%, 250=0.03%, 750=0.10%, 1000=0.29% lat (msec) : 2=7.81%, 4=3.65%, 10=6.54%, 20=8.76%, 50=36.23% lat (msec) : 100=25.88%, 250=8.56%, 500=0.26%, 2000=0.03% cpu : usr=0.06%, sys=4.31%, ctx=6219, 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=179984: Fri Oct 2 18:05:15 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(6028KiB/138238msec) clat (usec): min=38, max=1128.7k, avg=51665.06, stdev=45773.84 lat (usec): min=39, max=1128.7k, avg=51673.21, stdev=45775.86 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 93], 10.00th=[ 16319], | 20.00th=[ 22938], 30.00th=[ 29492], 40.00th=[ 35914], | 50.00th=[ 44303], 60.00th=[ 52691], 70.00th=[ 61604], | 80.00th=[ 73925], 90.00th=[ 94897], 95.00th=[ 116917], | 99.00th=[ 179307], 99.50th=[ 219153], 99.90th=[ 350225], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 107, per=25.36%, avg=43.37, stdev=19.62, samples=268 iops : min= 1, max= 26, avg=10.18, stdev= 4.95, samples=268 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6260KiB/138238msec); 0 zone resets clat (usec): min=787, max=315834, avg=38198.10, stdev=40946.56 lat (usec): min=788, max=315836, avg=38202.10, stdev=40946.37 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1188], 10.00th=[ 1336], 20.00th=[ 3425], | 30.00th=[ 7504], 40.00th=[ 15139], 50.00th=[ 26084], 60.00th=[ 36439], | 70.00th=[ 49546], 80.00th=[ 66847], 90.00th=[ 94897], 95.00th=[120062], | 99.00th=[170918], 99.50th=[204473], 99.90th=[295699], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7, max= 111, per=24.99%, avg=44.74, stdev=21.60, samples=269 iops : min= 1, max= 27, avg=10.53, stdev= 5.43, samples=269 lat (usec) : 50=0.29%, 100=2.25%, 250=0.16%, 500=0.03%, 1000=0.26% lat (msec) : 2=7.19%, 4=3.84%, 10=6.32%, 20=9.31%, 50=34.24% lat (msec) : 100=27.51%, 250=8.33%, 500=0.23%, 2000=0.03% cpu : usr=0.07%, sys=4.17%, ctx=6133, 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=179986: Fri Oct 2 18:05:15 2026 read: IOPS=10, BW=43.3KiB/s (44.4kB/s)(6052KiB/139669msec) clat (usec): min=39, max=384856, avg=50203.30, stdev=37512.40 lat (usec): min=39, max=384857, avg=50205.07, stdev=37512.97 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 971], 10.00th=[ 15533], 20.00th=[ 22414], | 30.00th=[ 28705], 40.00th=[ 34866], 50.00th=[ 42206], 60.00th=[ 50070], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[114820], | 99.00th=[181404], 99.50th=[219153], 99.90th=[291505], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 7, max= 132, per=25.18%, avg=43.06, stdev=20.03, samples=271 iops : min= 1, max= 33, avg=10.11, stdev= 5.06, samples=271 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6236KiB/139669msec); 0 zone resets clat (usec): min=661, max=1138.6k, avg=40454.63, stdev=49595.95 lat (usec): min=661, max=1138.6k, avg=40457.54, stdev=49596.72 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1172], 10.00th=[ 1401], | 20.00th=[ 3916], 30.00th=[ 8717], 40.00th=[ 19006], | 50.00th=[ 28181], 60.00th=[ 39584], 70.00th=[ 51643], | 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[ 121111], | 99.00th=[ 179307], 99.50th=[ 206570], 99.90th=[ 291505], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 135, per=24.92%, avg=44.60, stdev=22.48, samples=270 iops : min= 1, max= 33, avg=10.50, stdev= 5.67, samples=270 lat (usec) : 50=0.46%, 100=1.73%, 250=0.26%, 750=0.07%, 1000=0.49% lat (msec) : 2=6.38%, 4=3.42%, 10=6.15%, 20=9.73%, 50=35.84% lat (msec) : 100=26.69%, 250=8.46%, 500=0.29%, 2000=0.03% cpu : usr=0.06%, sys=4.25%, ctx=6331, 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=172KiB/s (176kB/s), 42.8KiB/s-43.6KiB/s (43.8kB/s-44.7kB/s), io=23.4MiB (24.6MB), run=138019-139669msec WRITE: bw=180KiB/s (184kB/s), 44.6KiB/s-45.7KiB/s (45.7kB/s-46.8kB/s), io=24.6MiB (25.7MB), run=138019-139669msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179979: Fri Oct 2 18:05:48 2026 read: IOPS=8, BW=34.6KiB/s (35.5kB/s)(5992KiB/173081msec) clat (msec): min=4, max=1029, avg=44.49, stdev=54.25 lat (msec): min=4, max=1029, avg=44.49, stdev=54.25 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 65], 90.00th=[ 104], 95.00th=[ 148], | 99.00th=[ 228], 99.50th=[ 279], 99.90th=[ 443], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 160, per=25.66%, avg=35.41, stdev=30.08, samples=327 iops : min= 1, max= 40, avg= 8.21, stdev= 7.57, samples=327 write: IOPS=9, BW=36.4KiB/s (37.2kB/s)(6296KiB/173081msec); 0 zone resets clat (msec): min=9, max=485, avg=67.25, stdev=57.07 lat (msec): min=9, max=485, avg=67.25, stdev=57.07 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 37], 50.00th=[ 46], 60.00th=[ 61], | 70.00th=[ 79], 80.00th=[ 108], 90.00th=[ 142], 95.00th=[ 180], | 99.00th=[ 264], 99.50th=[ 309], 99.90th=[ 464], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 176, per=25.14%, avg=36.46, stdev=29.59, samples=334 iops : min= 1, max= 44, avg= 8.47, stdev= 7.47, samples=334 lat (msec) : 10=4.85%, 20=19.86%, 50=38.44%, 100=20.54%, 250=15.30% lat (msec) : 500=0.98%, 2000=0.03% cpu : usr=0.05%, sys=1.52%, ctx=4775, 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=179981: Fri Oct 2 18:05:48 2026 read: IOPS=8, BW=34.4KiB/s (35.2kB/s)(5940KiB/172755msec) clat (msec): min=4, max=1132, avg=44.56, stdev=53.81 lat (msec): min=4, max=1132, avg=44.56, stdev=53.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 46], 80.00th=[ 69], 90.00th=[ 106], 95.00th=[ 144], | 99.00th=[ 211], 99.50th=[ 284], 99.90th=[ 351], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 181, per=26.18%, avg=36.13, stdev=30.77, samples=318 iops : min= 1, max= 45, avg= 8.40, stdev= 7.77, samples=318 write: IOPS=9, BW=36.7KiB/s (37.6kB/s)(6348KiB/172755msec); 0 zone resets clat (msec): min=9, max=558, avg=66.81, stdev=57.33 lat (msec): min=9, max=558, avg=66.81, stdev=57.33 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 36], 50.00th=[ 47], 60.00th=[ 61], | 70.00th=[ 81], 80.00th=[ 105], 90.00th=[ 146], 95.00th=[ 184], | 99.00th=[ 259], 99.50th=[ 288], 99.90th=[ 439], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 152, per=25.22%, avg=36.57, stdev=29.68, samples=335 iops : min= 1, max= 38, avg= 8.50, stdev= 7.49, samples=335 lat (msec) : 10=4.59%, 20=20.08%, 50=37.34%, 100=21.71%, 250=15.43% lat (msec) : 500=0.78%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.53%, ctx=4777, 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=179983: Fri Oct 2 18:05:48 2026 read: IOPS=8, BW=35.4KiB/s (36.3kB/s)(6028KiB/170272msec) clat (msec): min=4, max=362, avg=44.57, stdev=46.96 lat (msec): min=4, max=362, avg=44.57, stdev=46.96 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 27], 60.00th=[ 36], | 70.00th=[ 49], 80.00th=[ 70], 90.00th=[ 103], 95.00th=[ 138], | 99.00th=[ 234], 99.50th=[ 279], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 159, per=26.42%, avg=36.46, stdev=29.98, samples=322 iops : min= 1, max= 39, avg= 8.48, stdev= 7.56, samples=322 write: IOPS=9, BW=36.8KiB/s (37.6kB/s)(6260KiB/170272msec); 0 zone resets clat (msec): min=9, max=1145, avg=65.51, stdev=60.83 lat (msec): min=9, max=1145, avg=65.52, stdev=60.84 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 36], 50.00th=[ 46], 60.00th=[ 61], | 70.00th=[ 78], 80.00th=[ 101], 90.00th=[ 138], 95.00th=[ 178], | 99.00th=[ 251], 99.50th=[ 279], 99.90th=[ 481], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 150, per=25.79%, avg=37.40, stdev=30.68, samples=326 iops : min= 1, max= 37, avg= 8.71, stdev= 7.74, samples=326 lat (msec) : 10=5.18%, 20=20.74%, 50=36.26%, 100=22.33%, 250=14.62% lat (msec) : 500=0.85%, 2000=0.03% cpu : usr=0.05%, sys=1.46%, ctx=4721, 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=179985: Fri Oct 2 18:05:48 2026 read: IOPS=8, BW=35.1KiB/s (35.0kB/s)(6052KiB/172377msec) clat (msec): min=4, max=428, avg=44.46, stdev=46.11 lat (msec): min=4, max=428, avg=44.46, stdev=46.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 22], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 68], 90.00th=[ 107], 95.00th=[ 142], | 99.00th=[ 213], 99.50th=[ 262], 99.90th=[ 347], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 184, per=26.69%, avg=36.83, stdev=30.26, samples=320 iops : min= 1, max= 46, avg= 8.57, stdev= 7.64, samples=320 write: IOPS=9, BW=36.2KiB/s (37.0kB/s)(6236KiB/172377msec); 0 zone resets clat (msec): min=8, max=1131, avg=67.05, stdev=62.43 lat (msec): min=8, max=1131, avg=67.06, stdev=62.43 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 30], 40.00th=[ 37], 50.00th=[ 46], 60.00th=[ 60], | 70.00th=[ 78], 80.00th=[ 104], 90.00th=[ 144], 95.00th=[ 174], | 99.00th=[ 268], 99.50th=[ 326], 99.90th=[ 567], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 159, per=25.27%, avg=36.63, stdev=29.19, samples=331 iops : min= 1, max= 39, avg= 8.52, stdev= 7.36, samples=331 lat (msec) : 10=5.14%, 20=19.43%, 50=38.61%, 100=20.64%, 250=15.20% lat (msec) : 500=0.88%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.50%, ctx=4660, 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=139KiB/s (142kB/s), 34.4KiB/s-35.4KiB/s (35.2kB/s-36.3kB/s), io=23.4MiB (24.6MB), run=170272-173081msec WRITE: bw=145KiB/s (149kB/s), 36.2KiB/s-36.8KiB/s (37.0kB/s-37.6kB/s), io=24.6MiB (25.7MB), run=170272-173081msec 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=180033: Fri Oct 2 18:06:37 2026 read: IOPS=11, BW=182KiB/s (186kB/s)(5920KiB/32617msec) clat (usec): min=50, max=196557, avg=48463.65, stdev=31468.58 lat (usec): min=51, max=196558, avg=48467.26, stdev=31470.95 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 79], 10.00th=[ 19268], 20.00th=[ 25297], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 41681], 60.00th=[ 50070], | 70.00th=[ 55313], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[173016], 99.50th=[181404], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 63, max= 380, per=25.82%, avg=181.27, stdev=72.10, samples=64 iops : min= 3, max= 23, avg=10.58, stdev= 4.51, samples=64 write: IOPS=12, BW=195KiB/s (200kB/s)(6368KiB/32617msec); 0 zone resets clat (usec): min=1213, max=280943, avg=36260.36, stdev=38216.12 lat (usec): min=1214, max=280944, avg=36272.92, stdev=38242.68 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1795], 10.00th=[ 2442], 20.00th=[ 5080], | 30.00th=[ 9372], 40.00th=[ 16909], 50.00th=[ 23987], 60.00th=[ 33424], | 70.00th=[ 44827], 80.00th=[ 63177], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[158335], 99.50th=[235930], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 415, per=26.49%, avg=195.75, stdev=94.79, samples=64 iops : min= 1, max= 25, avg=11.48, stdev= 5.91, samples=64 lat (usec) : 100=2.60% lat (msec) : 2=4.04%, 4=5.08%, 10=7.16%, 20=8.85%, 50=39.71% lat (msec) : 100=25.78%, 250=6.64%, 500=0.13% cpu : usr=0.06%, sys=4.94%, ctx=1673, 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=180035: Fri Oct 2 18:06:37 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(5744KiB/33418msec) clat (usec): min=48, max=238826, avg=49923.71, stdev=33900.15 lat (usec): min=49, max=238827, avg=49924.83, stdev=33900.27 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 75], 10.00th=[ 15926], 20.00th=[ 25035], | 30.00th=[ 31065], 40.00th=[ 37487], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 70779], 90.00th=[ 85459], 95.00th=[108528], | 99.00th=[187696], 99.50th=[208667], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 22, max= 350, per=24.46%, avg=171.69, stdev=78.53, samples=65 iops : min= 1, max= 21, avg= 9.97, stdev= 4.90, samples=65 write: IOPS=12, BW=196KiB/s (201kB/s)(6544KiB/33418msec); 0 zone resets clat (usec): min=1124, max=223684, avg=37072.84, stdev=39086.56 lat (usec): min=1126, max=223685, avg=37078.65, stdev=39090.16 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1795], 10.00th=[ 2114], 20.00th=[ 5211], | 30.00th=[ 9634], 40.00th=[ 17433], 50.00th=[ 23725], 60.00th=[ 32637], | 70.00th=[ 48497], 80.00th=[ 63701], 90.00th=[ 88605], 95.00th=[119014], | 99.00th=[181404], 99.50th=[191890], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 32, max= 382, per=26.41%, avg=195.17, stdev=80.87, samples=65 iops : min= 2, max= 23, avg=11.45, stdev= 5.08, samples=65 lat (usec) : 50=0.13%, 100=2.34%, 750=0.13% lat (msec) : 2=4.30%, 4=4.43%, 10=8.20%, 20=11.20%, 50=34.38% lat (msec) : 100=27.34%, 250=7.55% cpu : usr=0.06%, sys=4.57%, ctx=1695, 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=180036: Fri Oct 2 18:06:37 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6256KiB/34080msec) clat (usec): min=51, max=242931, avg=48657.87, stdev=34994.37 lat (usec): min=52, max=242932, avg=48659.98, stdev=34995.50 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 14091], 20.00th=[ 22676], | 30.00th=[ 28967], 40.00th=[ 33817], 50.00th=[ 42730], 60.00th=[ 50070], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[185598], 99.50th=[214959], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 30, max= 409, per=26.74%, avg=187.70, stdev=84.03, samples=66 iops : min= 1, max= 25, avg=10.95, stdev= 5.24, samples=66 write: IOPS=11, BW=177KiB/s (181kB/s)(6032KiB/34080msec); 0 zone resets clat (usec): min=1489, max=282004, avg=38007.90, stdev=42839.42 lat (usec): min=1491, max=282006, avg=38016.37, stdev=42835.19 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1860], 10.00th=[ 2835], 20.00th=[ 5473], | 30.00th=[ 8455], 40.00th=[ 16909], 50.00th=[ 25822], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 61604], 90.00th=[ 91751], 95.00th=[114820], | 99.00th=[229639], 99.50th=[263193], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 448, per=24.23%, avg=179.06, stdev=93.10, samples=66 iops : min= 1, max= 28, avg=10.41, stdev= 5.88, samples=66 lat (usec) : 100=3.26%, 250=0.26%, 750=0.13% lat (msec) : 2=2.86%, 4=4.43%, 10=8.59%, 20=9.51%, 50=37.50% lat (msec) : 100=26.04%, 250=7.03%, 500=0.39% cpu : usr=0.06%, sys=4.68%, ctx=1745, 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=180037: Fri Oct 2 18:06:37 2026 read: IOPS=11, BW=191KiB/s (195kB/s)(6032KiB/31651msec) clat (usec): min=36, max=301320, avg=47243.72, stdev=36106.66 lat (usec): min=36, max=301321, avg=47245.68, stdev=36106.47 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 73], 20.00th=[ 20841], | 30.00th=[ 28705], 40.00th=[ 33817], 50.00th=[ 42206], 60.00th=[ 49546], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[160433], 99.50th=[193987], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 382, per=26.86%, avg=188.58, stdev=71.56, samples=62 iops : min= 1, max= 23, avg=11.03, stdev= 4.51, samples=62 write: IOPS=12, BW=198KiB/s (202kB/s)(6256KiB/31651msec); 0 zone resets clat (usec): min=1396, max=191076, avg=35143.15, stdev=35118.79 lat (usec): min=1398, max=191077, avg=35151.41, stdev=35115.85 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1811], 10.00th=[ 2540], 20.00th=[ 5473], | 30.00th=[ 9896], 40.00th=[ 17433], 50.00th=[ 24511], 60.00th=[ 32113], | 70.00th=[ 45351], 80.00th=[ 60031], 90.00th=[ 80217], 95.00th=[108528], | 99.00th=[164627], 99.50th=[175113], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 382, per=26.72%, avg=197.45, stdev=77.27, samples=62 iops : min= 1, max= 23, avg=11.60, stdev= 4.85, samples=62 lat (usec) : 50=0.65%, 100=4.69%, 250=0.13%, 500=0.13%, 1000=0.26% lat (msec) : 2=3.91%, 4=3.78%, 10=7.81%, 20=9.90%, 50=35.42% lat (msec) : 100=26.30%, 250=6.90%, 500=0.13% cpu : usr=0.07%, sys=4.70%, ctx=1564, 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=703KiB/s (720kB/s), 172KiB/s-191KiB/s (176kB/s-195kB/s), io=23.4MiB (24.5MB), run=31651-34080msec WRITE: bw=739KiB/s (757kB/s), 177KiB/s-198KiB/s (181kB/s-202kB/s), io=24.6MiB (25.8MB), run=31651-34080msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180038: Fri Oct 2 18:06:49 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(5920KiB/46613msec) clat (msec): min=8, max=281, avg=49.50, stdev=40.53 lat (msec): min=8, max=281, avg=49.51, stdev=40.53 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 53], 80.00th=[ 67], 90.00th=[ 97], 95.00th=[ 129], | 99.00th=[ 201], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 29, max= 318, per=25.30%, avg=129.78, stdev=69.37, samples=87 iops : min= 1, max= 19, avg= 7.34, stdev= 4.42, samples=87 write: IOPS=8, BW=137KiB/s (140kB/s)(6368KiB/46613msec); 0 zone resets clat (msec): min=15, max=298, avg=69.33, stdev=47.84 lat (msec): min=15, max=298, avg=69.33, stdev=47.83 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 56], 60.00th=[ 65], | 70.00th=[ 83], 80.00th=[ 101], 90.00th=[ 130], 95.00th=[ 165], | 99.00th=[ 264], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 320, per=25.46%, avg=137.51, stdev=70.74, samples=89 iops : min= 1, max= 20, avg= 7.83, stdev= 4.49, samples=89 lat (msec) : 10=0.78%, 20=8.59%, 50=45.70%, 100=29.82%, 250=14.19% lat (msec) : 500=0.91% cpu : usr=0.03%, sys=1.59%, ctx=1159, 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=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=180039: Fri Oct 2 18:06:49 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(5744KiB/45853msec) clat (msec): min=8, max=251, avg=47.86, stdev=39.14 lat (msec): min=8, max=251, avg=47.86, stdev=39.14 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 49], 80.00th=[ 65], 90.00th=[ 91], 95.00th=[ 136], | 99.00th=[ 203], 99.50th=[ 236], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 28, max= 384, per=24.79%, avg=127.17, stdev=80.79, samples=88 iops : min= 1, max= 24, avg= 7.18, stdev= 5.10, samples=88 write: IOPS=8, BW=143KiB/s (146kB/s)(6544KiB/45853msec); 0 zone resets clat (msec): min=12, max=337, avg=69.83, stdev=50.72 lat (msec): min=12, max=337, avg=69.84, stdev=50.72 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 75], 80.00th=[ 97], 90.00th=[ 132], 95.00th=[ 171], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 381, per=26.40%, avg=142.53, stdev=76.12, samples=90 iops : min= 1, max= 23, avg= 8.16, stdev= 4.82, samples=90 lat (msec) : 10=0.52%, 20=8.98%, 50=46.35%, 100=30.47%, 250=12.76% lat (msec) : 500=0.91% cpu : usr=0.05%, sys=1.69%, ctx=1125, 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=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=180040: Fri Oct 2 18:06:49 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(6256KiB/46380msec) clat (msec): min=7, max=317, avg=48.45, stdev=40.72 lat (msec): min=7, max=317, avg=48.45, stdev=40.72 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 72], 90.00th=[ 108], 95.00th=[ 134], | 99.00th=[ 194], 99.50th=[ 245], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 29, max= 384, per=27.28%, avg=139.97, stdev=93.70, samples=88 iops : min= 1, max= 24, avg= 7.98, stdev= 5.93, samples=88 write: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46380msec); 0 zone resets clat (msec): min=12, max=294, avg=71.59, stdev=47.06 lat (msec): min=12, max=294, avg=71.59, stdev=47.06 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 67], | 70.00th=[ 84], 80.00th=[ 108], 90.00th=[ 136], 95.00th=[ 161], | 99.00th=[ 247], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 28, max= 318, per=24.00%, avg=129.62, stdev=65.61, samples=90 iops : min= 1, max= 19, avg= 7.33, stdev= 4.15, samples=90 lat (msec) : 10=0.78%, 20=10.16%, 50=44.14%, 100=27.60%, 250=16.80% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.68%, ctx=1130, 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=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=180041: Fri Oct 2 18:06:49 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46504msec) clat (msec): min=7, max=265, avg=48.07, stdev=36.65 lat (msec): min=7, max=265, avg=48.07, stdev=36.65 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 54], 80.00th=[ 67], 90.00th=[ 94], 95.00th=[ 120], | 99.00th=[ 192], 99.50th=[ 199], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 349, per=26.09%, avg=133.85, stdev=77.98, samples=87 iops : min= 1, max= 21, avg= 7.60, stdev= 4.93, samples=87 write: IOPS=8, BW=135KiB/s (138kB/s)(6256KiB/46504msec); 0 zone resets clat (msec): min=15, max=402, avg=71.27, stdev=48.06 lat (msec): min=15, max=402, avg=71.28, stdev=48.06 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 24], 10.00th=[ 26], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 70], | 70.00th=[ 85], 80.00th=[ 104], 90.00th=[ 136], 95.00th=[ 159], | 99.00th=[ 230], 99.50th=[ 257], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 31, max= 384, per=24.92%, avg=134.58, stdev=74.89, samples=90 iops : min= 1, max= 24, avg= 7.64, stdev= 4.78, samples=90 lat (msec) : 10=0.39%, 20=9.11%, 50=44.14%, 100=30.99%, 250=14.84% lat (msec) : 500=0.52% cpu : usr=0.03%, sys=1.49%, ctx=1160, 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=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=514KiB/s (526kB/s), 125KiB/s-135KiB/s (128kB/s-138kB/s), io=23.4MiB (24.5MB), run=45853-46613msec WRITE: bw=541KiB/s (554kB/s), 130KiB/s-143KiB/s (133kB/s-146kB/s), io=24.6MiB (25.8MB), run=45853-46613msec 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=180055: Fri Oct 2 18:07:06 2026 read: IOPS=1, BW=1149KiB/s (1176kB/s)(7168KiB/6240msec) clat (msec): min=6, max=2826, avg=609.27, stdev=991.77 lat (msec): min=6, max=2826, avg=609.27, stdev=991.77 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 161], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 211], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 550], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 2019, max= 3992, per=100.00%, avg=3306.33, stdev=1115.65, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=821KiB/s (840kB/s)(5120KiB/6240msec); 0 zone resets clat (msec): min=157, max=531, avg=325.76, stdev=166.18 lat (msec): min=157, max=531, avg=325.83, stdev=166.19 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1932, max= 3683, per=64.49%, avg=2547.33, stdev=984.66, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 10=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=9.15%, ctx=706, 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=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=180056: Fri Oct 2 18:07:06 2026 read: IOPS=0, BW=282KiB/s (289kB/s)(2048KiB/7258msec) clat (msec): min=173, max=207, avg=190.44, stdev=23.55 lat (msec): min=173, max=207, avg=190.45, stdev=23.55 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 207], 90.00th=[ 207], 95.00th=[ 207], | 99.00th=[ 207], 99.50th=[ 207], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 1641, max= 2027, per=65.01%, avg=1834.00, stdev=272.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1411KiB/s (1445kB/s)(10.0MiB/7258msec); 0 zone resets clat (msec): min=158, max=3204, avg=682.05, stdev=937.27 lat (msec): min=158, max=3204, avg=682.67, stdev=937.02 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 201], 40.00th=[ 224], 50.00th=[ 239], 60.00th=[ 388], | 70.00th=[ 468], 80.00th=[ 600], 90.00th=[ 1167], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 1841, max= 5796, per=79.39%, avg=3135.80, stdev=1737.65, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=58.33%, 500=16.67%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=9.04%, ctx=139, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180058: Fri Oct 2 18:07:06 2026 read: IOPS=0, BW=961KiB/s (984kB/s)(6144KiB/6391msec) clat (usec): min=592, max=225654, avg=144808.64, stdev=111920.59 lat (usec): min=594, max=225655, avg=144809.96, stdev=111920.83 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 611], | 30.00th=[ 611], 40.00th=[206570], 50.00th=[206570], 60.00th=[212861], | 70.00th=[223347], 80.00th=[223347], 90.00th=[225444], 95.00th=[225444], | 99.00th=[225444], 99.50th=[225444], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 1841, max= 3864, per=86.45%, avg=2438.75, stdev=954.12, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=961KiB/s (984kB/s)(6144KiB/6391msec); 0 zone resets clat (msec): min=174, max=3242, avg=914.76, stdev=1178.46 lat (msec): min=174, max=3242, avg=914.83, stdev=1178.47 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 542], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 3239], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 1841, max= 4047, per=68.41%, avg=2702.25, stdev=1036.92, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=16.67% lat (msec) : 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.79%, ctx=140, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180059: Fri Oct 2 18:07:06 2026 read: IOPS=0, BW=867KiB/s (888kB/s)(5120KiB/5904msec) clat (usec): min=602, max=270497, avg=138727.68, stdev=115761.41 lat (usec): min=603, max=270499, avg=138729.27, stdev=115761.68 clat percentiles (usec): | 1.00th=[ 603], 5.00th=[ 603], 10.00th=[ 603], 20.00th=[ 603], | 30.00th=[ 35914], 40.00th=[ 35914], 50.00th=[177210], 60.00th=[177210], | 70.00th=[210764], 80.00th=[210764], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 1932, max= 5862, per=100.00%, avg=3897.00, stdev=2778.93, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1214KiB/s (1243kB/s)(7168KiB/5904msec); 0 zone resets clat (msec): min=209, max=3042, avg=724.70, stdev=1027.52 lat (msec): min=211, max=3042, avg=725.00, stdev=1027.39 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 247], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 388], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 1486, max= 3992, per=66.43%, avg=2624.00, stdev=1131.73, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=33.33%, 500=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=8.78%, ctx=178, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2822KiB/s (2889kB/s), 282KiB/s-1149KiB/s (289kB/s-1176kB/s), io=20.0MiB (20.0MB), run=5904-7258msec WRITE: bw=3950KiB/s (4045kB/s), 821KiB/s-1411KiB/s (840kB/s-1445kB/s), io=28.0MiB (29.4MB), run=5904-7258msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180057: Fri Oct 2 18:07:07 2026 read: IOPS=0, BW=920KiB/s (942kB/s)(7168KiB/7789msec) clat (msec): min=92, max=2847, avg=907.94, stdev=1002.13 lat (msec): min=92, max=2847, avg=907.95, stdev=1002.14 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 101], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 676], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1351], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 2007, max= 2048, per=79.58%, avg=2034.00, stdev=17.04, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 write: IOPS=0, BW=657KiB/s (673kB/s)(5120KiB/7789msec); 0 zone resets clat (msec): min=99, max=300, avg=221.20, stdev=100.97 lat (msec): min=99, max=300, avg=221.31, stdev=101.00 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 2019, max= 4096, per=95.10%, avg=3403.67, stdev=1199.16, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 lat (msec) : 100=25.00%, 250=16.67%, 500=25.00%, 750=8.33%, 2000=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=1.90%, ctx=156, 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=180060: Fri Oct 2 18:07:07 2026 read: IOPS=0, BW=263KiB/s (269kB/s)(2048KiB/7800msec) clat (msec): min=400, max=465, avg=433.03, stdev=45.78 lat (msec): min=400, max=465, avg=433.03, stdev=45.78 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=[ 464], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 2007, max= 2035, per=79.07%, avg=2021.00, stdev=19.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1313KiB/s (1344kB/s)(10.0MiB/7800msec); 0 zone resets clat (msec): min=178, max=3508, avg=662.89, stdev=1008.14 lat (msec): min=178, max=3508, avg=663.55, stdev=1008.02 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 186], | 30.00th=[ 209], 40.00th=[ 284], 50.00th=[ 347], 60.00th=[ 451], | 70.00th=[ 472], 80.00th=[ 481], 90.00th=[ 518], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 2019, max= 4096, per=85.52%, avg=3060.83, stdev=1122.03, samples=6 iops : min= 1, max= 4, avg= 2.50, stdev= 1.38, samples=6 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.88%, ctx=87, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180061: Fri Oct 2 18:07:07 2026 read: IOPS=0, BW=843KiB/s (864kB/s)(6144KiB/7285msec) clat (msec): min=164, max=482, avg=313.43, stdev=126.18 lat (msec): min=164, max=482, avg=313.43, stdev=126.18 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 372], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 2007, max= 4063, per=99.43%, avg=2541.50, stdev=1014.52, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=0, BW=843KiB/s (864kB/s)(6144KiB/7285msec); 0 zone resets clat (msec): min=89, max=3494, avg=889.23, stdev=1295.89 lat (msec): min=89, max=3495, avg=889.33, stdev=1295.87 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 550], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 2019, max= 4096, per=85.42%, avg=3057.25, stdev=1185.10, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.54%, ctx=129, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180062: Fri Oct 2 18:07:07 2026 read: IOPS=0, BW=639KiB/s (654kB/s)(5120KiB/8011msec) clat (msec): min=136, max=600, avg=388.14, stdev=170.65 lat (msec): min=136, max=600, avg=388.14, stdev=170.65 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2007, max= 2048, per=79.72%, avg=2037.75, stdev=20.50, samples=4 iops : min= 1, max= 2, avg= 1.75, stdev= 0.50, samples=4 write: IOPS=0, BW=895KiB/s (916kB/s)(7168KiB/8011msec); 0 zone resets clat (msec): min=74, max=3468, avg=793.08, stdev=1219.31 lat (msec): min=74, max=3468, avg=793.21, stdev=1219.29 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 95], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 264], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 927], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 2031, max= 2048, per=56.98%, avg=2039.25, stdev= 7.68, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=16.67%, 500=33.33%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.63%, ctx=115, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2556KiB/s (2618kB/s), 263KiB/s-920KiB/s (269kB/s-942kB/s), io=20.0MiB (20.0MB), run=7285-8011msec WRITE: bw=3579KiB/s (3665kB/s), 657KiB/s-1313KiB/s (673kB/s-1344kB/s), io=28.0MiB (29.4MB), run=7285-8011msec 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=180069: Fri Oct 2 18:07:25 2026 read: IOPS=0, BW=2668KiB/s (2732kB/s)(12.0MiB/4605msec) clat (msec): min=550, max=2495, avg=1496.54, stdev=973.65 lat (msec): min=550, max=2495, avg=1496.54, stdev=973.65 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 8078, max= 8175, per=100.00%, avg=8126.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.93%, ctx=59, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180070: Fri Oct 2 18:07:25 2026 read: IOPS=0, BW=1081KiB/s (1107kB/s)(4096KiB/3789msec) clat (nsec): min=823896k, max=823896k, avg=823896112.00, stdev= 0.00 lat (nsec): min=823899k, max=823899k, avg=823898760.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2162KiB/s (2214kB/s)(8192KiB/3789msec); 0 zone resets clat (msec): min=839, max=2048, avg=1444.19, stdev=854.46 lat (msec): min=840, max=2048, avg=1444.57, stdev=854.45 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 2056], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 8143, max= 8143, per=94.16%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.43%, ctx=44, 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=180071: Fri Oct 2 18:07:25 2026 write: IOPS=1, BW=5220KiB/s (5345kB/s)(12.0MiB/2354msec); 0 zone resets clat (msec): min=341, max=1353, avg=757.51, stdev=529.42 lat (msec): min=343, max=1353, avg=760.68, stdev=527.50 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 5618, max= 8094, per=79.28%, avg=6856.00, stdev=1750.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.12%, ctx=47, 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=180072: Fri Oct 2 18:07:25 2026 write: IOPS=0, BW=4059KiB/s (4157kB/s)(12.0MiB/3027msec); 0 zone resets clat (msec): min=634, max=1329, avg=978.04, stdev=347.28 lat (msec): min=635, max=1331, avg=978.97, stdev=348.11 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8094, max= 8175, per=94.06%, avg=8134.50, stdev=57.28, 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=3.93%, ctx=52, 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=3558KiB/s (3643kB/s), 1081KiB/s-2668KiB/s (1107kB/s-2732kB/s), io=16.0MiB (16.8MB), run=3789-4605msec WRITE: bw=8648KiB/s (8856kB/s), 2162KiB/s-5220KiB/s (2214kB/s-5345kB/s), io=32.0MiB (33.6MB), run=2354-3789msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180074: Fri Oct 2 18:07:25 2026 read: IOPS=0, BW=3159KiB/s (3235kB/s)(12.0MiB/3890msec) clat (msec): min=890, max=1540, avg=1212.03, stdev=324.83 lat (msec): min=890, max=1540, avg=1212.04, stdev=324.83 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=10.21%, ctx=241, 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=180075: Fri Oct 2 18:07:25 2026 read: IOPS=0, BW=1052KiB/s (1077kB/s)(4096KiB/3895msec) clat (nsec): min=868224k, max=868224k, avg=868224050.00, stdev= 0.00 lat (nsec): min=868228k, max=868228k, avg=868228006.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2103KiB/s (2154kB/s)(8192KiB/3895msec); 0 zone resets clat (msec): min=1064, max=1759, avg=1412.13, stdev=491.43 lat (msec): min=1066, max=1765, avg=1415.73, stdev=494.40 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1754], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.21%, ctx=84, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180076: Fri Oct 2 18:07:25 2026 write: IOPS=0, BW=2740KiB/s (2806kB/s)(12.0MiB/4485msec); 0 zone resets clat (msec): min=824, max=2621, avg=1443.83, stdev=1019.96 lat (msec): min=825, max=2621, avg=1444.28, stdev=1019.89 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7460, max= 8126, per=100.00%, avg=7793.00, stdev=470.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.22%, sys=3.37%, ctx=50, 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=180077: Fri Oct 2 18:07:25 2026 write: IOPS=0, BW=3708KiB/s (3797kB/s)(12.0MiB/3314msec); 0 zone resets clat (msec): min=598, max=1572, avg=995.48, stdev=511.22 lat (msec): min=599, max=1573, avg=996.03, stdev=511.31 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7953, max= 8143, per=100.00%, avg=8048.00, stdev=134.35, 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=4.86%, ctx=90, 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=4206KiB/s (4307kB/s), 1052KiB/s-3159KiB/s (1077kB/s-3235kB/s), io=16.0MiB (16.8MB), run=3890-3895msec WRITE: bw=7306KiB/s (7481kB/s), 2103KiB/s-3708KiB/s (2154kB/s-3797kB/s), io=32.0MiB (33.6MB), run=3314-4485msec