== sanity test 398b: DIO and buffer IO race ============== 10:45:33 (1787841933) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.47272 s, 7.8 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=179541: Thu Aug 27 10:48:15 2026 read: IOPS=10, BW=43.4KiB/s (44.5kB/s)(5992KiB/137960msec) clat (usec): min=37, max=1083.6k, avg=52093.28, stdev=43666.54 lat (usec): min=37, max=1083.6k, avg=52096.06, stdev=43666.25 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 8094], 10.00th=[ 18220], | 20.00th=[ 25297], 30.00th=[ 31327], 40.00th=[ 37487], | 50.00th=[ 44303], 60.00th=[ 53216], 70.00th=[ 62653], | 80.00th=[ 73925], 90.00th=[ 92799], 95.00th=[ 115868], | 99.00th=[ 170918], 99.50th=[ 214959], 99.90th=[ 354419], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 87, per=25.75%, avg=43.26, stdev=16.73, samples=269 iops : min= 1, max= 21, avg=10.17, stdev= 4.21, samples=269 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6296KiB/137960msec); 0 zone resets clat (usec): min=976, max=283930, avg=37676.35, stdev=38473.21 lat (usec): min=978, max=283932, avg=37679.23, stdev=38474.62 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1401], 10.00th=[ 1991], 20.00th=[ 4015], | 30.00th=[ 6980], 40.00th=[ 16581], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 50594], 80.00th=[ 65799], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[162530], 99.50th=[187696], 99.90th=[212861], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 5, max= 120, per=25.74%, avg=45.30, stdev=21.60, samples=270 iops : min= 1, max= 30, avg=10.70, stdev= 5.44, samples=270 lat (usec) : 50=0.16%, 100=1.79%, 250=0.23%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.07% lat (msec) : 2=5.21%, 4=4.88%, 10=7.71%, 20=7.78%, 50=35.45% lat (msec) : 100=28.84%, 250=7.55%, 500=0.16%, 2000=0.03% cpu : usr=0.10%, sys=5.24%, ctx=6603, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179542: Thu Aug 27 10:48:15 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(5940KiB/140065msec) clat (usec): min=49, max=326577, avg=50774.73, stdev=34241.32 lat (usec): min=50, max=326579, avg=50778.77, stdev=34240.43 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 13173], 10.00th=[ 18482], 20.00th=[ 25297], | 30.00th=[ 31065], 40.00th=[ 36963], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[109577], | 99.00th=[166724], 99.50th=[210764], 99.90th=[299893], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 5, max= 103, per=25.23%, avg=42.38, stdev=17.00, samples=273 iops : min= 1, max= 25, avg= 9.96, stdev= 4.28, samples=273 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6348KiB/140065msec); 0 zone resets clat (usec): min=987, max=1090.4k, avg=40345.80, stdev=48167.25 lat (usec): min=988, max=1090.4k, avg=40354.22, stdev=48165.77 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1418], 10.00th=[ 2212], | 20.00th=[ 4621], 30.00th=[ 9110], 40.00th=[ 20055], | 50.00th=[ 29492], 60.00th=[ 39584], 70.00th=[ 51119], | 80.00th=[ 66323], 90.00th=[ 95945], 95.00th=[ 117965], | 99.00th=[ 175113], 99.50th=[ 214959], 99.90th=[ 274727], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 166, per=25.87%, avg=45.53, stdev=22.30, samples=272 iops : min= 1, max= 41, avg=10.75, stdev= 5.62, samples=272 lat (usec) : 50=0.07%, 100=1.50%, 250=0.26%, 750=0.03%, 1000=0.03% lat (msec) : 2=4.62%, 4=4.69%, 10=7.00%, 20=7.65%, 50=38.64% lat (msec) : 100=27.18%, 250=8.14%, 500=0.16%, 2000=0.03% cpu : usr=0.09%, sys=5.16%, ctx=6838, 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=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=179543: Thu Aug 27 10:48:15 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(6028KiB/138142msec) clat (usec): min=35, max=950973, avg=50555.99, stdev=40434.01 lat (usec): min=35, max=950974, avg=50559.01, stdev=40434.89 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 783], 10.00th=[ 18482], 20.00th=[ 25035], | 30.00th=[ 31589], 40.00th=[ 37487], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 60556], 80.00th=[ 71828], 90.00th=[ 89654], 95.00th=[104334], | 99.00th=[168821], 99.50th=[235930], 99.90th=[258999], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 7, max= 87, per=25.82%, avg=43.38, stdev=16.79, samples=271 iops : min= 1, max= 21, avg=10.21, stdev= 4.21, samples=271 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6260KiB/138142msec); 0 zone resets clat (usec): min=1010, max=312634, avg=39244.66, stdev=39711.64 lat (usec): min=1011, max=312636, avg=39254.12, stdev=39710.54 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1352], 10.00th=[ 2040], 20.00th=[ 4555], | 30.00th=[ 9634], 40.00th=[ 20055], 50.00th=[ 28967], 60.00th=[ 38536], | 70.00th=[ 50594], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[177210], 99.50th=[208667], 99.90th=[287310], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 127, per=25.58%, avg=45.02, stdev=20.29, samples=271 iops : min= 1, max= 31, avg=10.63, stdev= 5.11, samples=271 lat (usec) : 50=0.16%, 100=1.73%, 250=0.46%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.88%, 4=4.46%, 10=6.28%, 20=8.17%, 50=37.66% lat (msec) : 100=29.07%, 250=6.71%, 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=5.18%, ctx=6881, 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=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=179545: Thu Aug 27 10:48:15 2026 read: IOPS=10, BW=42.5KiB/s (43.6kB/s)(6052KiB/142284msec) clat (usec): min=48, max=252503, avg=50538.98, stdev=32642.50 lat (usec): min=48, max=252504, avg=50545.39, stdev=32644.85 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 9241], 10.00th=[ 18482], 20.00th=[ 25297], | 30.00th=[ 31065], 40.00th=[ 37487], 50.00th=[ 44303], 60.00th=[ 51643], | 70.00th=[ 61604], 80.00th=[ 72877], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[158335], 99.50th=[181404], 99.90th=[227541], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 88, per=25.32%, avg=42.54, stdev=17.17, samples=277 iops : min= 1, max= 22, avg=10.01, stdev= 4.33, samples=277 write: IOPS=10, BW=43.8KiB/s (44.9kB/s)(6236KiB/142284msec); 0 zone resets clat (usec): min=927, max=1112.1k, avg=41787.80, stdev=48892.88 lat (usec): min=927, max=1112.1k, avg=41794.02, stdev=48890.14 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1450], 10.00th=[ 2278], | 20.00th=[ 5145], 30.00th=[ 9896], 40.00th=[ 21103], | 50.00th=[ 30016], 60.00th=[ 40109], 70.00th=[ 52167], | 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[ 126354], | 99.00th=[ 168821], 99.50th=[ 196084], 99.90th=[ 263193], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 5, max= 124, per=24.88%, avg=43.79, stdev=20.71, samples=277 iops : min= 1, max= 31, avg=10.32, stdev= 5.23, samples=277 lat (usec) : 50=0.10%, 100=1.79%, 250=0.26%, 500=0.10%, 1000=0.13% lat (msec) : 2=4.30%, 4=4.07%, 10=7.10%, 20=7.88%, 50=37.01% lat (msec) : 100=28.87%, 250=8.27%, 500=0.10%, 2000=0.03% cpu : usr=0.09%, sys=5.18%, ctx=6872, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=169KiB/s (173kB/s), 42.4KiB/s-43.6KiB/s (43.4kB/s-44.7kB/s), io=23.4MiB (24.6MB), run=137960-142284msec WRITE: bw=177KiB/s (181kB/s), 43.8KiB/s-45.6KiB/s (44.9kB/s-46.7kB/s), io=24.6MiB (25.7MB), run=137960-142284msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179547: Thu Aug 27 10:48:53 2026 read: IOPS=8, BW=33.1KiB/s (33.9kB/s)(5992KiB/180907msec) clat (msec): min=5, max=1123, avg=49.02, stdev=53.04 lat (msec): min=5, max=1123, avg=49.02, stdev=53.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 71], 90.00th=[ 112], 95.00th=[ 144], | 99.00th=[ 228], 99.50th=[ 251], 99.90th=[ 363], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 116, per=25.65%, avg=33.86, stdev=23.56, samples=342 iops : min= 1, max= 29, avg= 7.79, stdev= 5.92, samples=342 write: IOPS=8, BW=34.8KiB/s (35.6kB/s)(6296KiB/180907msec); 0 zone resets clat (msec): min=13, max=352, avg=68.03, stdev=49.47 lat (msec): min=13, max=352, avg=68.04, stdev=49.47 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 81], 80.00th=[ 100], 90.00th=[ 134], 95.00th=[ 165], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7, max= 104, per=25.28%, avg=34.89, stdev=22.30, samples=349 iops : min= 1, max= 26, avg= 8.05, stdev= 5.61, samples=349 lat (msec) : 10=1.11%, 20=13.54%, 50=45.02%, 100=24.41%, 250=15.14% lat (msec) : 500=0.75%, 2000=0.03% cpu : usr=0.06%, sys=1.79%, ctx=4851, 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=179548: Thu Aug 27 10:48:53 2026 read: IOPS=8, BW=32.9KiB/s (33.7kB/s)(5940KiB/180715msec) clat (msec): min=5, max=950, avg=47.91, stdev=49.56 lat (msec): min=5, max=950, avg=47.92, stdev=49.56 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 111], 95.00th=[ 136], | 99.00th=[ 220], 99.50th=[ 247], 99.90th=[ 368], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 127, per=25.65%, avg=33.86, stdev=23.78, samples=340 iops : min= 1, max= 31, avg= 7.79, stdev= 5.99, samples=340 write: IOPS=8, BW=35.1KiB/s (35.0kB/s)(6348KiB/180715msec); 0 zone resets clat (msec): min=12, max=391, avg=68.75, stdev=50.14 lat (msec): min=12, max=391, avg=68.76, stdev=50.14 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 83], 80.00th=[ 102], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 247], 99.50th=[ 279], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 119, per=25.55%, avg=35.26, stdev=22.59, samples=349 iops : min= 1, max= 29, avg= 8.14, stdev= 5.68, samples=349 lat (msec) : 10=1.56%, 20=12.43%, 50=45.21%, 100=24.38%, 250=15.76% lat (msec) : 500=0.62%, 1000=0.03% cpu : usr=0.06%, sys=1.76%, ctx=4949, 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=179549: Thu Aug 27 10:48:53 2026 read: IOPS=8, BW=33.4KiB/s (34.2kB/s)(6028KiB/180434msec) clat (msec): min=5, max=442, avg=47.44, stdev=46.42 lat (msec): min=5, max=442, avg=47.45, stdev=46.43 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 69], 90.00th=[ 109], 95.00th=[ 144], | 99.00th=[ 224], 99.50th=[ 266], 99.90th=[ 351], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7, max= 127, per=25.79%, avg=34.04, stdev=23.72, samples=343 iops : min= 1, max= 31, avg= 7.83, stdev= 5.97, samples=343 write: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6260KiB/180434msec); 0 zone resets clat (msec): min=12, max=1010, avg=69.32, stdev=54.47 lat (msec): min=12, max=1010, avg=69.33, stdev=54.47 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 83], 80.00th=[ 101], 90.00th=[ 136], 95.00th=[ 163], | 99.00th=[ 257], 99.50th=[ 279], 99.90th=[ 393], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 111, per=25.31%, avg=34.93, stdev=22.82, samples=347 iops : min= 1, max= 27, avg= 8.06, stdev= 5.73, samples=347 lat (msec) : 10=1.86%, 20=12.57%, 50=45.48%, 100=24.15%, 250=15.01% lat (msec) : 500=0.91%, 2000=0.03% cpu : usr=0.06%, sys=1.81%, ctx=4819, 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=179550: Thu Aug 27 10:48:53 2026 read: IOPS=8, BW=33.6KiB/s (34.4kB/s)(6052KiB/179937msec) clat (msec): min=6, max=448, avg=48.44, stdev=47.20 lat (msec): min=6, max=448, avg=48.45, stdev=47.20 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 50], 80.00th=[ 70], 90.00th=[ 112], 95.00th=[ 153], | 99.00th=[ 220], 99.50th=[ 255], 99.90th=[ 347], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7, max= 135, per=26.04%, avg=34.38, stdev=23.48, samples=341 iops : min= 1, max= 33, avg= 7.92, stdev= 5.92, samples=341 write: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6236KiB/179937msec); 0 zone resets clat (msec): min=12, max=1009, avg=68.11, stdev=53.00 lat (msec): min=12, max=1009, avg=68.12, stdev=53.00 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 81], 80.00th=[ 101], 90.00th=[ 132], 95.00th=[ 165], | 99.00th=[ 234], 99.50th=[ 275], 99.90th=[ 388], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 111, per=25.18%, avg=34.74, stdev=22.41, samples=347 iops : min= 1, max= 27, avg= 8.01, stdev= 5.63, samples=347 lat (msec) : 10=1.46%, 20=13.22%, 50=44.24%, 100=24.80%, 250=15.63% lat (msec) : 500=0.62%, 2000=0.03% cpu : usr=0.07%, sys=1.75%, ctx=4692, 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=133KiB/s (136kB/s), 32.9KiB/s-33.6KiB/s (33.7kB/s-34.4kB/s), io=23.4MiB (24.6MB), run=179937-180907msec WRITE: bw=139KiB/s (142kB/s), 34.7KiB/s-35.1KiB/s (35.5kB/s-35.0kB/s), io=24.6MiB (25.7MB), run=179937-180907msec 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=179599: Thu Aug 27 10:49:39 2026 read: IOPS=10, BW=175KiB/s (180kB/s)(5920KiB/33766msec) clat (usec): min=46, max=192195, avg=48575.65, stdev=31719.55 lat (usec): min=46, max=192196, avg=48589.30, stdev=31727.37 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 81], 10.00th=[ 17695], 20.00th=[ 26346], | 30.00th=[ 31851], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 49546], | 70.00th=[ 57934], 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[170918], 99.50th=[189793], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 62, max= 348, per=24.54%, avg=173.98, stdev=64.81, samples=66 iops : min= 3, max= 21, avg=10.08, stdev= 4.10, samples=66 write: IOPS=11, BW=189KiB/s (193kB/s)(6368KiB/33766msec); 0 zone resets clat (usec): min=1704, max=197750, avg=39533.21, stdev=36446.31 lat (usec): min=1706, max=197752, avg=39535.88, stdev=36446.15 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2835], 10.00th=[ 4293], 20.00th=[ 7570], | 30.00th=[ 12518], 40.00th=[ 18744], 50.00th=[ 30016], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 65799], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[156238], 99.50th=[189793], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 412, per=25.27%, avg=188.52, stdev=82.21, samples=66 iops : min= 1, max= 25, avg=11.00, stdev= 5.22, samples=66 lat (usec) : 50=0.13%, 100=2.86%, 250=0.13%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.17%, 4=3.39%, 10=9.11%, 20=9.77%, 50=36.07% lat (msec) : 100=30.08%, 250=6.64% cpu : usr=0.06%, sys=6.18%, ctx=1830, 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=179600: Thu Aug 27 10:49:39 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5744KiB/33204msec) clat (usec): min=58, max=201587, avg=48425.46, stdev=29649.07 lat (usec): min=59, max=201588, avg=48430.91, stdev=29647.83 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 227], 10.00th=[ 18482], 20.00th=[ 27395], | 30.00th=[ 32900], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[147850], 99.50th=[193987], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 31, max= 342, per=24.27%, avg=172.05, stdev=64.40, samples=65 iops : min= 1, max= 21, avg= 9.95, stdev= 4.03, samples=65 write: IOPS=12, BW=197KiB/s (202kB/s)(6544KiB/33204msec); 0 zone resets clat (usec): min=1495, max=255080, avg=38540.59, stdev=36738.16 lat (usec): min=1496, max=255084, avg=38544.44, stdev=36740.19 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2769], 10.00th=[ 4047], 20.00th=[ 8717], | 30.00th=[ 13042], 40.00th=[ 19792], 50.00th=[ 27395], 60.00th=[ 37487], | 70.00th=[ 44827], 80.00th=[ 67634], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[149947], 99.50th=[154141], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 31, max= 447, per=26.17%, avg=195.23, stdev=77.52, samples=65 iops : min= 1, max= 27, avg=11.42, stdev= 4.91, samples=65 lat (usec) : 100=1.95%, 250=0.52%, 1000=0.13% lat (msec) : 2=1.69%, 4=3.39%, 10=7.68%, 20=11.20%, 50=39.71% lat (msec) : 100=27.34%, 250=6.25%, 500=0.13% cpu : usr=0.08%, sys=6.00%, ctx=1812, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179601: Thu Aug 27 10:49:39 2026 read: IOPS=11, BW=187KiB/s (192kB/s)(6256KiB/33383msec) clat (usec): min=40, max=228776, avg=47612.22, stdev=32735.27 lat (usec): min=41, max=228777, avg=47616.58, stdev=32734.85 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 71], 10.00th=[ 14353], 20.00th=[ 25560], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 43779], 60.00th=[ 49546], | 70.00th=[ 56361], 80.00th=[ 66847], 90.00th=[ 85459], 95.00th=[101188], | 99.00th=[191890], 99.50th=[214959], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 63, max= 404, per=26.37%, avg=186.94, stdev=73.17, samples=65 iops : min= 3, max= 25, avg=10.89, stdev= 4.59, samples=65 write: IOPS=11, BW=181KiB/s (185kB/s)(6032KiB/33383msec); 0 zone resets clat (usec): min=1567, max=247462, avg=39046.71, stdev=35731.52 lat (usec): min=1568, max=247464, avg=39049.27, stdev=35731.57 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2737], 10.00th=[ 4359], 20.00th=[ 8029], | 30.00th=[ 13042], 40.00th=[ 21365], 50.00th=[ 28967], 60.00th=[ 39060], | 70.00th=[ 49546], 80.00th=[ 65274], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[162530], 99.50th=[198181], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 350, per=23.79%, avg=177.51, stdev=72.40, samples=65 iops : min= 1, max= 21, avg=10.29, stdev= 4.61, samples=65 lat (usec) : 50=0.39%, 100=3.39%, 250=0.26%, 500=0.26% lat (msec) : 2=0.91%, 4=2.99%, 10=8.33%, 20=8.98%, 50=40.10% lat (msec) : 100=28.52%, 250=5.86% cpu : usr=0.08%, sys=5.83%, ctx=1845, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179602: Thu Aug 27 10:49:39 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6032KiB/32857msec) clat (usec): min=46, max=280563, avg=48259.04, stdev=34788.51 lat (usec): min=47, max=280564, avg=48260.94, stdev=34788.19 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 165], 20.00th=[ 24511], | 30.00th=[ 30802], 40.00th=[ 36963], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 59507], 80.00th=[ 69731], 90.00th=[ 85459], 95.00th=[104334], | 99.00th=[179307], 99.50th=[225444], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 49, max= 318, per=25.65%, avg=181.89, stdev=60.69, samples=64 iops : min= 3, max= 19, avg=10.58, stdev= 3.81, samples=64 write: IOPS=11, BW=190KiB/s (195kB/s)(6256KiB/32857msec); 0 zone resets clat (usec): min=1543, max=182036, avg=37349.50, stdev=35895.37 lat (usec): min=1545, max=182037, avg=37356.24, stdev=35895.49 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2999], 10.00th=[ 4752], 20.00th=[ 7373], | 30.00th=[ 12125], 40.00th=[ 18744], 50.00th=[ 25560], 60.00th=[ 34866], | 70.00th=[ 43779], 80.00th=[ 63177], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[164627], 99.50th=[170918], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 446, per=25.40%, avg=189.50, stdev=88.61, samples=64 iops : min= 1, max= 27, avg=11.06, stdev= 5.55, samples=64 lat (usec) : 50=0.26%, 100=3.91%, 250=1.04%, 500=0.13% lat (msec) : 2=1.56%, 4=2.86%, 10=8.85%, 20=10.29%, 50=37.63% lat (msec) : 100=26.82%, 250=6.51%, 500=0.13% cpu : usr=0.08%, sys=6.15%, ctx=1863, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=709KiB/s (726kB/s), 173KiB/s-187KiB/s (177kB/s-192kB/s), io=23.4MiB (24.5MB), run=32857-33766msec WRITE: bw=746KiB/s (764kB/s), 181KiB/s-197KiB/s (185kB/s-202kB/s), io=24.6MiB (25.8MB), run=32857-33766msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179594: Thu Aug 27 10:49:51 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(5920KiB/46940msec) clat (msec): min=8, max=233, avg=47.80, stdev=36.84 lat (msec): min=8, max=233, avg=47.80, stdev=36.84 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 70], 90.00th=[ 94], 95.00th=[ 127], | 99.00th=[ 192], 99.50th=[ 222], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 375, per=24.61%, avg=125.51, stdev=75.70, samples=93 iops : min= 1, max= 23, avg= 7.02, stdev= 4.80, samples=93 write: IOPS=8, BW=136KiB/s (139kB/s)(6368KiB/46940msec); 0 zone resets clat (msec): min=15, max=300, avg=73.02, stdev=44.77 lat (msec): min=15, max=300, avg=73.02, stdev=44.77 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 54], 50.00th=[ 61], 60.00th=[ 71], | 70.00th=[ 84], 80.00th=[ 105], 90.00th=[ 138], 95.00th=[ 153], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 383, per=25.21%, avg=135.12, stdev=71.69, samples=93 iops : min= 1, max= 23, avg= 7.62, stdev= 4.50, samples=93 lat (msec) : 10=0.39%, 20=9.11%, 50=42.84%, 100=31.38%, 250=15.76% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.92%, ctx=1167, 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=179595: Thu Aug 27 10:49:51 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5744KiB/46478msec) clat (msec): min=9, max=206, avg=46.32, stdev=34.84 lat (msec): min=9, max=206, avg=46.32, stdev=34.84 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 41], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 93], 95.00th=[ 125], | 99.00th=[ 180], 99.50th=[ 205], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 31, max= 383, per=25.63%, avg=130.70, stdev=77.91, samples=87 iops : min= 1, max= 23, avg= 7.34, stdev= 4.90, samples=87 write: IOPS=8, BW=141KiB/s (144kB/s)(6544KiB/46478msec); 0 zone resets clat (msec): min=13, max=289, avg=72.63, stdev=44.47 lat (msec): min=13, max=289, avg=72.63, stdev=44.47 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 53], 50.00th=[ 61], 60.00th=[ 69], | 70.00th=[ 84], 80.00th=[ 105], 90.00th=[ 136], 95.00th=[ 159], | 99.00th=[ 228], 99.50th=[ 264], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 319, per=26.13%, avg=140.07, stdev=67.66, samples=92 iops : min= 1, max= 19, avg= 7.93, stdev= 4.23, samples=92 lat (msec) : 10=0.13%, 20=7.29%, 50=46.35%, 100=30.73%, 250=15.10% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.88%, ctx=1157, 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=179596: Thu Aug 27 10:49:51 2026 read: IOPS=8, BW=134KiB/s (138kB/s)(6256KiB/46527msec) clat (msec): min=11, max=218, avg=48.90, stdev=33.84 lat (msec): min=11, max=218, avg=48.90, stdev=33.84 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 28], 40.00th=[ 33], 50.00th=[ 39], 60.00th=[ 46], | 70.00th=[ 56], 80.00th=[ 69], 90.00th=[ 95], 95.00th=[ 116], | 99.00th=[ 192], 99.50th=[ 213], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 479, per=27.27%, avg=139.07, stdev=80.18, samples=89 iops : min= 1, max= 29, avg= 7.85, stdev= 5.03, samples=89 write: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46527msec); 0 zone resets clat (msec): min=19, max=332, avg=72.49, stdev=45.90 lat (msec): min=19, max=332, avg=72.49, stdev=45.90 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 32], 20.00th=[ 38], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 59], 60.00th=[ 70], | 70.00th=[ 85], 80.00th=[ 108], 90.00th=[ 133], 95.00th=[ 155], | 99.00th=[ 255], 99.50th=[ 279], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 382, per=23.92%, avg=128.22, stdev=64.53, samples=92 iops : min= 1, max= 23, avg= 7.20, stdev= 4.08, samples=92 lat (msec) : 20=6.77%, 50=46.88%, 100=31.12%, 250=14.71%, 500=0.52% cpu : usr=0.07%, sys=2.04%, ctx=1191, 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=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=179597: Thu Aug 27 10:49:51 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46649msec) clat (msec): min=6, max=264, avg=49.22, stdev=38.13 lat (msec): min=6, max=264, avg=49.23, stdev=38.13 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 52], 80.00th=[ 66], 90.00th=[ 103], 95.00th=[ 136], | 99.00th=[ 188], 99.50th=[ 230], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 31, max= 351, per=25.53%, avg=130.18, stdev=72.57, samples=90 iops : min= 1, max= 21, avg= 7.30, stdev= 4.59, samples=90 write: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46649msec); 0 zone resets clat (msec): min=12, max=326, avg=71.39, stdev=47.78 lat (msec): min=12, max=326, avg=71.40, stdev=47.78 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 38], | 30.00th=[ 43], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 81], 80.00th=[ 94], 90.00th=[ 130], 95.00th=[ 165], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 378, per=24.85%, avg=133.20, stdev=68.68, samples=92 iops : min= 1, max= 23, avg= 7.50, stdev= 4.35, samples=92 lat (msec) : 10=0.78%, 20=6.77%, 50=47.14%, 100=30.99%, 250=13.54% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.88%, ctx=1206, 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=510KiB/s (523kB/s), 124KiB/s-134KiB/s (127kB/s-138kB/s), io=23.4MiB (24.5MB), run=46478-46940msec WRITE: bw=537KiB/s (550kB/s), 130KiB/s-141KiB/s (133kB/s-144kB/s), io=24.6MiB (25.8MB), run=46478-46940msec 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=179615: Thu Aug 27 10:50:08 2026 read: IOPS=2, BW=2170KiB/s (2222kB/s)(7168KiB/3303msec) clat (msec): min=7, max=297, avg=212.34, stdev=96.96 lat (msec): min=7, max=297, avg=212.34, stdev=96.96 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 182], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1910, max= 2976, per=51.16%, avg=2223.50, stdev=504.43, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1550KiB/s (1587kB/s)(5120KiB/3303msec); 0 zone resets clat (msec): min=163, max=619, avg=353.27, stdev=187.84 lat (msec): min=163, max=619, avg=353.37, stdev=187.87 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1910, max= 3683, per=41.43%, avg=2520.67, stdev=1007.04, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 10=8.33%, 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=17.20%, ctx=154, 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=179617: Thu Aug 27 10:50:08 2026 read: IOPS=0, BW=435KiB/s (445kB/s)(2048KiB/4712msec) clat (msec): min=56, max=250, avg=153.85, stdev=137.08 lat (msec): min=56, max=250, avg=153.86, stdev=137.08 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 57], 40.00th=[ 57], 50.00th=[ 57], 60.00th=[ 251], | 70.00th=[ 251], 80.00th=[ 251], 90.00th=[ 251], 95.00th=[ 251], | 99.00th=[ 251], 99.50th=[ 251], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 1572, max= 1928, per=40.27%, avg=1750.00, stdev=251.73, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2173KiB/s (2225kB/s)(10.0MiB/4712msec); 0 zone resets clat (msec): min=116, max=771, avg=411.62, stdev=206.92 lat (msec): min=116, max=771, avg=411.72, stdev=206.91 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 288], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 676], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1928, max= 3835, per=42.80%, avg=2603.67, stdev=948.87, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=13.54%, ctx=197, 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=179618: Thu Aug 27 10:50:08 2026 read: IOPS=1, BW=1545KiB/s (1582kB/s)(6144KiB/3976msec) clat (usec): min=624, max=440823, avg=173454.27, stdev=169207.35 lat (usec): min=625, max=440824, avg=173455.43, stdev=169207.24 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 1565], | 30.00th=[ 1565], 40.00th=[129500], 50.00th=[129500], 60.00th=[196084], | 70.00th=[270533], 80.00th=[270533], 90.00th=[442500], 95.00th=[442500], | 99.00th=[442500], 99.50th=[442500], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 1841, max= 5907, per=74.21%, avg=3225.33, stdev=2322.80, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1545KiB/s (1582kB/s)(6144KiB/3976msec); 0 zone resets clat (msec): min=239, max=818, avg=430.86, stdev=209.48 lat (msec): min=239, max=818, avg=430.94, stdev=209.47 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 355], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1432, max= 2039, per=30.74%, avg=1870.33, stdev=227.41, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=11.09%, ctx=171, 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=179619: Thu Aug 27 10:50:08 2026 read: IOPS=1, BW=1178KiB/s (1207kB/s)(5120KiB/4345msec) clat (usec): min=525, max=359427, avg=178139.62, stdev=170102.33 lat (usec): min=527, max=359428, avg=178140.84, stdev=170102.27 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 545], 40.00th=[ 545], 50.00th=[217056], 60.00th=[217056], | 70.00th=[312476], 80.00th=[312476], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 3856, max= 4063, per=91.11%, avg=3959.50, stdev=146.37, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1650KiB/s (1689kB/s)(7168KiB/4345msec); 0 zone resets clat (msec): min=183, max=989, avg=471.84, stdev=293.40 lat (msec): min=184, max=989, avg=472.04, stdev=293.38 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 186], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 405], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 701], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1481, max= 2039, per=30.77%, avg=1872.20, stdev=232.61, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=25.00%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=9.16%, ctx=142, 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=4346KiB/s (4451kB/s), 435KiB/s-2170KiB/s (445kB/s-2222kB/s), io=20.0MiB (20.0MB), run=3303-4712msec WRITE: bw=6085KiB/s (6231kB/s), 1545KiB/s-2173KiB/s (1582kB/s-2225kB/s), io=28.0MiB (29.4MB), run=3303-4712msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179620: Thu Aug 27 10:50:09 2026 read: IOPS=1, BW=1576KiB/s (1614kB/s)(7168KiB/4549msec) clat (msec): min=91, max=284, avg=165.73, stdev=73.11 lat (msec): min=91, max=284, avg=165.73, stdev=73.11 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 120], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 142], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2015, max= 4031, per=71.64%, avg=2701.50, stdev=949.78, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1126KiB/s (1153kB/s)(5120KiB/4549msec); 0 zone resets clat (msec): min=245, max=1231, avg=657.79, stdev=417.50 lat (msec): min=245, max=1231, avg=657.86, stdev=417.50 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1996, max= 2019, per=38.00%, avg=2006.25, stdev= 9.64, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=5.41%, ctx=115, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179621: Thu Aug 27 10:50:09 2026 read: IOPS=0, BW=403KiB/s (413kB/s)(2048KiB/5081msec) clat (msec): min=439, max=764, avg=601.98, stdev=229.73 lat (msec): min=439, max=764, avg=601.99, stdev=229.73 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 2007, max= 2015, per=53.33%, avg=2011.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2015KiB/s (2064kB/s)(10.0MiB/5081msec); 0 zone resets clat (msec): min=161, max=876, avg=361.52, stdev=200.69 lat (msec): min=161, max=876, avg=361.71, stdev=200.75 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 232], | 30.00th=[ 251], 40.00th=[ 275], 50.00th=[ 292], 60.00th=[ 326], | 70.00th=[ 330], 80.00th=[ 439], 90.00th=[ 443], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 2019, max= 4096, per=61.14%, avg=3228.20, stdev=1100.91, samples=5 iops : min= 1, max= 4, avg= 2.40, stdev= 1.34, samples=5 lat (msec) : 250=16.67%, 500=66.67%, 1000=16.67% cpu : usr=0.00%, sys=5.83%, ctx=133, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179622: Thu Aug 27 10:50:09 2026 read: IOPS=1, BW=1294KiB/s (1325kB/s)(6144KiB/4748msec) clat (msec): min=96, max=503, avg=197.76, stdev=152.60 lat (msec): min=96, max=503, avg=197.76, stdev=152.60 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1996, max= 4039, per=66.75%, avg=2517.25, stdev=1014.58, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1294KiB/s (1325kB/s)(6144KiB/4748msec); 0 zone resets clat (msec): min=267, max=909, avg=472.15, stdev=238.77 lat (msec): min=267, max=909, avg=472.26, stdev=238.77 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1996, max= 2027, per=38.11%, avg=2012.00, stdev=12.45, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.19%, ctx=89, 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=179623: Thu Aug 27 10:50:09 2026 read: IOPS=0, BW=943KiB/s (966kB/s)(5120KiB/5430msec) clat (msec): min=94, max=731, avg=345.38, stdev=284.06 lat (msec): min=94, max=731, avg=345.38, stdev=284.06 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 2019, max= 4096, per=72.04%, avg=2716.67, stdev=1194.56, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1320KiB/s (1352kB/s)(7168KiB/5430msec); 0 zone resets clat (msec): min=109, max=903, avg=485.23, stdev=354.66 lat (msec): min=110, max=903, avg=485.32, stdev=354.66 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 118], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 634], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 852], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 2007, max= 4071, per=45.97%, avg=2427.00, stdev=919.05, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 750=33.33%, 1000=16.67% cpu : usr=0.06%, sys=3.87%, ctx=92, 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=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=3772KiB/s (3862kB/s), 403KiB/s-1576KiB/s (413kB/s-1614kB/s), io=20.0MiB (20.0MB), run=4549-5430msec WRITE: bw=5280KiB/s (5407kB/s), 1126KiB/s-2015KiB/s (1153kB/s-2064kB/s), io=28.0MiB (29.4MB), run=4549-5430msec 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=179635: Thu Aug 27 10:50:24 2026 read: IOPS=1, BW=4811KiB/s (4927kB/s)(12.0MiB/2554msec) clat (msec): min=728, max=837, avg=799.98, stdev=62.04 lat (msec): min=728, max=837, avg=799.98, stdev=62.04 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=13.20%, ctx=307, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179636: Thu Aug 27 10:50:24 2026 read: IOPS=0, BW=1400KiB/s (1434kB/s)(4096KiB/2925msec) clat (nsec): min=758027k, max=758027k, avg=758026689.00, stdev= 0.00 lat (nsec): min=758029k, max=758029k, avg=758029203.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] 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=2801KiB/s (2868kB/s)(8192KiB/2925msec); 0 zone resets clat (msec): min=880, max=1069, avg=975.26, stdev=133.55 lat (msec): min=881, max=1070, avg=975.97, stdev=134.13 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 1070], | 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= 8192, max= 8192, per=73.13%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.33%, ctx=174, 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=179637: Thu Aug 27 10:50:24 2026 write: IOPS=1, BW=4506KiB/s (4614kB/s)(12.0MiB/2727msec); 0 zone resets clat (msec): min=689, max=967, avg=840.90, stdev=140.57 lat (msec): min=690, max=969, avg=841.71, stdev=141.30 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8192, max= 8192, per=73.13%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=9.79%, ctx=122, 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=179638: Thu Aug 27 10:50:24 2026 write: IOPS=1, BW=4509KiB/s (4618kB/s)(12.0MiB/2725msec); 0 zone resets clat (msec): min=490, max=1658, avg=884.40, stdev=670.29 lat (msec): min=491, max=1658, avg=884.95, stdev=670.09 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 6627, max= 8192, per=66.14%, avg=7409.50, stdev=1106.62, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.11%, sys=5.10%, ctx=55, 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=5601KiB/s (5736kB/s), 1400KiB/s-4811KiB/s (1434kB/s-4927kB/s), io=16.0MiB (16.8MB), run=2554-2925msec WRITE: bw=10.9MiB/s (11.5MB/s), 2801KiB/s-4509KiB/s (2868kB/s-4618kB/s), io=32.0MiB (33.6MB), run=2725-2925msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179630: Thu Aug 27 10:50:24 2026 read: IOPS=1, BW=6915KiB/s (7081kB/s)(12.0MiB/1777msec) clat (msec): min=487, max=756, avg=578.18, stdev=154.08 lat (msec): min=487, max=756, avg=578.18, stdev=154.08 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7599, max= 8175, per=100.00%, avg=7887.00, stdev=407.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.14%, 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=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=179631: Thu Aug 27 10:50:24 2026 read: IOPS=0, BW=1352KiB/s (1384kB/s)(4096KiB/3030msec) clat (nsec): min=289728k, max=289728k, avg=289728219.00, stdev= 0.00 lat (nsec): min=289730k, max=289730k, avg=289730382.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 6627, max= 6627, per=100.00%, avg=6627.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2704KiB/s (2769kB/s)(8192KiB/3030msec); 0 zone resets clat (msec): min=789, max=1855, avg=1322.63, stdev=753.62 lat (msec): min=790, max=1855, avg=1322.98, stdev=753.72 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 1854], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8031, max= 8031, per=87.01%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.56%, ctx=66, 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=179632: Thu Aug 27 10:50:24 2026 write: IOPS=0, BW=3461KiB/s (3544kB/s)(12.0MiB/3550msec); 0 zone resets clat (msec): min=191, max=2038, avg=1157.99, stdev=926.32 lat (msec): min=192, max=2039, avg=1158.30, stdev=926.31 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 8143, max= 8143, per=88.22%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.90%, ctx=48, 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=179633: Thu Aug 27 10:50:24 2026 write: IOPS=1, BW=4506KiB/s (4614kB/s)(12.0MiB/2727msec); 0 zone resets clat (msec): min=218, max=2237, avg=892.09, stdev=1164.88 lat (msec): min=219, max=2237, avg=892.46, stdev=1164.80 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 222], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min=13562, max=13562, per=100.00%, avg=13562.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.62%, ctx=59, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5407KiB/s (5537kB/s), 1352KiB/s-6915KiB/s (1384kB/s-7081kB/s), io=16.0MiB (16.8MB), run=1777-3030msec WRITE: bw=9230KiB/s (9452kB/s), 2704KiB/s-4506KiB/s (2769kB/s-4614kB/s), io=32.0MiB (33.6MB), run=2727-3550msec