== sanity test 398b: DIO and buffer IO race ============== 19:15:29 (1788563729) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.59504 s, 7.6 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=144123: Fri Sep 4 19:18:10 2026 read: IOPS=10, BW=42.0KiB/s (43.0kB/s)(5992KiB/142530msec) clat (usec): min=33, max=363704, avg=45559.10, stdev=39416.34 lat (usec): min=34, max=363705, avg=45568.42, stdev=39416.24 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 87], 20.00th=[ 17957], | 30.00th=[ 23462], 40.00th=[ 29754], 50.00th=[ 36963], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[120062], | 99.00th=[187696], 99.50th=[225444], 99.90th=[316670], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 119, per=24.79%, avg=41.64, stdev=20.90, samples=278 iops : min= 1, max= 29, avg= 9.75, stdev= 5.25, samples=278 write: IOPS=11, BW=44.2KiB/s (45.2kB/s)(6296KiB/142530msec); 0 zone resets clat (usec): min=941, max=963350, avg=46751.97, stdev=54808.27 lat (usec): min=942, max=963352, avg=46756.34, stdev=54809.79 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1680], 20.00th=[ 4228], | 30.00th=[ 9372], 40.00th=[ 18482], 50.00th=[ 32375], 60.00th=[ 43779], | 70.00th=[ 60031], 80.00th=[ 81265], 90.00th=[112722], 95.00th=[147850], | 99.00th=[214959], 99.50th=[261096], 99.90th=[337642], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 151, per=24.91%, avg=43.85, stdev=22.65, samples=278 iops : min= 1, max= 37, avg=10.31, stdev= 5.68, samples=278 lat (usec) : 50=1.01%, 100=4.07%, 250=0.33%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.07% lat (msec) : 2=6.18%, 4=3.68%, 10=6.67%, 20=10.51%, 50=32.39% lat (msec) : 100=24.02%, 250=10.45%, 500=0.39%, 1000=0.03% cpu : usr=0.07%, sys=5.00%, ctx=6438, 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=144124: Fri Sep 4 19:18:10 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(5940KiB/142801msec) clat (usec): min=27, max=438508, avg=44877.53, stdev=39182.02 lat (usec): min=27, max=438509, avg=44884.68, stdev=39180.48 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 83], 20.00th=[ 17433], | 30.00th=[ 23462], 40.00th=[ 29754], 50.00th=[ 35914], 60.00th=[ 43779], | 70.00th=[ 54789], 80.00th=[ 68682], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[177210], 99.50th=[210764], 99.90th=[350225], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 7, max= 119, per=24.79%, avg=41.65, stdev=20.97, samples=277 iops : min= 1, max= 29, avg= 9.75, stdev= 5.28, samples=277 write: IOPS=11, BW=44.5KiB/s (45.5kB/s)(6348KiB/142801msec); 0 zone resets clat (usec): min=604, max=958178, avg=47590.10, stdev=55914.84 lat (usec): min=605, max=958180, avg=47595.68, stdev=55919.01 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1663], 20.00th=[ 4146], | 30.00th=[ 8717], 40.00th=[ 19792], 50.00th=[ 33162], 60.00th=[ 45876], | 70.00th=[ 62129], 80.00th=[ 80217], 90.00th=[114820], 95.00th=[143655], | 99.00th=[233833], 99.50th=[283116], 99.90th=[379585], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 127, per=25.31%, avg=44.54, stdev=22.30, samples=276 iops : min= 1, max= 31, avg=10.48, stdev= 5.60, samples=276 lat (usec) : 50=0.88%, 100=4.36%, 250=0.39%, 500=0.07%, 750=0.16% lat (usec) : 1000=0.16% lat (msec) : 2=5.92%, 4=3.97%, 10=6.93%, 20=10.16%, 50=31.35% lat (msec) : 100=24.80%, 250=10.29%, 500=0.52%, 1000=0.03% cpu : usr=0.07%, sys=4.86%, ctx=6394, 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=144125: Fri Sep 4 19:18:10 2026 read: IOPS=10, BW=42.2KiB/s (43.2kB/s)(6028KiB/142746msec) clat (usec): min=30, max=332595, avg=43279.01, stdev=36837.37 lat (usec): min=30, max=332597, avg=43282.61, stdev=36838.40 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 56], 10.00th=[ 74], 20.00th=[ 16319], | 30.00th=[ 22676], 40.00th=[ 28967], 50.00th=[ 35914], 60.00th=[ 43779], | 70.00th=[ 53216], 80.00th=[ 66323], 90.00th=[ 90702], 95.00th=[108528], | 99.00th=[164627], 99.50th=[202376], 99.90th=[295699], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 151, per=25.17%, avg=42.29, stdev=21.67, samples=277 iops : min= 1, max= 37, avg= 9.92, stdev= 5.45, samples=277 write: IOPS=10, BW=43.9KiB/s (44.9kB/s)(6260KiB/142746msec); 0 zone resets clat (usec): min=920, max=934887, avg=49132.18, stdev=57807.70 lat (usec): min=922, max=934889, avg=49137.14, stdev=57812.78 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1680], 20.00th=[ 4490], | 30.00th=[ 8717], 40.00th=[ 20055], 50.00th=[ 33817], 60.00th=[ 47449], | 70.00th=[ 63701], 80.00th=[ 84411], 90.00th=[119014], 95.00th=[152044], | 99.00th=[233833], 99.50th=[261096], 99.90th=[438305], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 143, per=24.79%, avg=43.63, stdev=22.00, samples=279 iops : min= 1, max= 35, avg=10.25, stdev= 5.52, samples=279 lat (usec) : 50=0.85%, 100=5.01%, 250=0.39%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=5.76%, 4=3.48%, 10=7.23%, 20=9.57%, 50=31.84% lat (msec) : 100=24.61%, 250=10.42%, 500=0.39%, 1000=0.03% cpu : usr=0.07%, sys=5.11%, ctx=6453, 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=144126: Fri Sep 4 19:18:10 2026 read: IOPS=10, BW=42.5KiB/s (43.6kB/s)(6052KiB/142265msec) clat (usec): min=33, max=1004.8k, avg=44838.79, stdev=47132.71 lat (usec): min=33, max=1004.8k, avg=44849.41, stdev=47130.00 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 73], | 20.00th=[ 17171], 30.00th=[ 23725], 40.00th=[ 29230], | 50.00th=[ 35914], 60.00th=[ 43254], 70.00th=[ 54264], | 80.00th=[ 67634], 90.00th=[ 89654], 95.00th=[ 110625], | 99.00th=[ 168821], 99.50th=[ 210764], 99.90th=[ 633340], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 136, per=25.31%, avg=42.52, stdev=23.01, samples=277 iops : min= 1, max= 34, avg= 9.97, stdev= 5.79, samples=277 write: IOPS=10, BW=43.8KiB/s (44.9kB/s)(6236KiB/142265msec); 0 zone resets clat (usec): min=979, max=380553, avg=47340.43, stdev=51900.27 lat (usec): min=980, max=380555, avg=47342.78, stdev=51900.09 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1795], 20.00th=[ 4113], | 30.00th=[ 8979], 40.00th=[ 20055], 50.00th=[ 31851], 60.00th=[ 45351], | 70.00th=[ 61080], 80.00th=[ 81265], 90.00th=[115868], 95.00th=[149947], | 99.00th=[223347], 99.50th=[299893], 99.90th=[367002], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 7, max= 175, per=24.97%, avg=43.94, stdev=22.96, samples=276 iops : min= 1, max= 43, avg=10.33, stdev= 5.76, samples=276 lat (usec) : 50=0.98%, 100=4.65%, 250=0.42%, 500=0.13%, 1000=0.03% lat (msec) : 2=5.57%, 4=4.52%, 10=6.25%, 20=9.44%, 50=32.88% lat (msec) : 100=24.48%, 250=10.16%, 500=0.42%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=4.82%, ctx=6343, 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=168KiB/s (172kB/s), 41.6KiB/s-42.5KiB/s (42.6kB/s-43.6kB/s), io=23.4MiB (24.6MB), run=142265-142801msec WRITE: bw=176KiB/s (180kB/s), 43.8KiB/s-44.5KiB/s (44.9kB/s-45.5kB/s), io=24.6MiB (25.7MB), run=142265-142801msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144128: Fri Sep 4 19:20:28 2026 read: IOPS=5, BW=21.5KiB/s (22.1kB/s)(5992KiB/278057msec) clat (msec): min=4, max=1169, avg=37.50, stdev=54.26 lat (msec): min=4, max=1169, avg=37.50, stdev=54.26 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 82], 95.00th=[ 118], | 99.00th=[ 211], 99.50th=[ 247], 99.90th=[ 818], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 103, per=30.36%, avg=25.81, stdev=17.72, samples=450 iops : min= 1, max= 25, avg= 5.85, stdev= 4.49, samples=450 write: IOPS=5, BW=22.6KiB/s (23.2kB/s)(6296KiB/278057msec); 0 zone resets clat (msec): min=29, max=630, avg=140.88, stdev=84.66 lat (msec): min=29, max=630, avg=140.89, stdev=84.66 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 114], 60.00th=[ 132], | 70.00th=[ 157], 80.00th=[ 199], 90.00th=[ 259], 95.00th=[ 321], | 99.00th=[ 435], 99.50th=[ 460], 99.90th=[ 575], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 56, per=25.46%, avg=22.66, stdev=12.41, samples=535 iops : min= 1, max= 14, avg= 5.05, stdev= 3.18, samples=535 lat (msec) : 10=5.53%, 20=16.44%, 50=18.65%, 100=25.46%, 250=27.77% lat (msec) : 500=5.96%, 750=0.13%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.04%, ctx=5256, 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=144129: Fri Sep 4 19:20:28 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(5940KiB/280322msec) clat (msec): min=5, max=1078, avg=37.19, stdev=49.99 lat (msec): min=5, max=1078, avg=37.19, stdev=49.99 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 78], 95.00th=[ 110], | 99.00th=[ 203], 99.50th=[ 245], 99.90th=[ 818], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 95, per=29.80%, avg=25.33, stdev=17.53, samples=454 iops : min= 1, max= 23, avg= 5.73, stdev= 4.44, samples=454 write: IOPS=5, BW=22.6KiB/s (23.2kB/s)(6348KiB/280322msec); 0 zone resets clat (msec): min=38, max=789, avg=141.75, stdev=87.50 lat (msec): min=38, max=789, avg=141.75, stdev=87.50 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 101], 50.00th=[ 114], 60.00th=[ 131], | 70.00th=[ 157], 80.00th=[ 197], 90.00th=[ 262], 95.00th=[ 317], | 99.00th=[ 443], 99.50th=[ 514], 99.90th=[ 684], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 56, per=25.46%, avg=22.66, stdev=12.41, samples=540 iops : min= 1, max= 14, avg= 5.05, stdev= 3.19, samples=540 lat (msec) : 10=5.11%, 20=14.68%, 50=19.69%, 100=26.63%, 250=27.99% lat (msec) : 500=5.53%, 750=0.26%, 1000=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.09%, ctx=5344, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144130: Fri Sep 4 19:20:28 2026 read: IOPS=5, BW=21.6KiB/s (22.1kB/s)(6028KiB/279709msec) clat (msec): min=4, max=462, avg=37.56, stdev=39.93 lat (msec): min=4, max=462, avg=37.56, stdev=39.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 82], 95.00th=[ 112], | 99.00th=[ 201], 99.50th=[ 228], 99.90th=[ 443], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 96, per=28.77%, avg=24.45, stdev=17.22, samples=476 iops : min= 1, max= 24, avg= 5.50, stdev= 4.38, samples=476 write: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6260KiB/279709msec); 0 zone resets clat (msec): min=32, max=1198, avg=142.48, stdev=91.54 lat (msec): min=32, max=1198, avg=142.48, stdev=91.54 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 130], | 70.00th=[ 150], 80.00th=[ 197], 90.00th=[ 264], 95.00th=[ 330], | 99.00th=[ 443], 99.50th=[ 514], 99.90th=[ 709], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 56, per=24.95%, avg=22.20, stdev=12.33, samples=542 iops : min= 1, max= 14, avg= 4.94, stdev= 3.17, samples=542 lat (msec) : 10=4.92%, 20=15.10%, 50=19.63%, 100=26.24%, 250=28.19% lat (msec) : 500=5.63%, 750=0.26%, 2000=0.03% cpu : usr=0.03%, sys=1.11%, ctx=5398, 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=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=144131: Fri Sep 4 19:20:28 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(6052KiB/278585msec) clat (msec): min=4, max=466, avg=37.46, stdev=43.03 lat (msec): min=4, max=466, avg=37.47, stdev=43.03 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 52], 90.00th=[ 91], 95.00th=[ 122], | 99.00th=[ 213], 99.50th=[ 236], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 7, max= 136, per=30.14%, avg=25.62, stdev=18.59, samples=457 iops : min= 1, max= 34, avg= 5.80, stdev= 4.71, samples=457 write: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6236KiB/278585msec); 0 zone resets clat (msec): min=33, max=1206, avg=142.27, stdev=87.21 lat (msec): min=33, max=1206, avg=142.27, stdev=87.21 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 134], | 70.00th=[ 157], 80.00th=[ 197], 90.00th=[ 262], 95.00th=[ 317], | 99.00th=[ 426], 99.50th=[ 493], 99.90th=[ 592], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 64, per=24.90%, avg=22.16, stdev=12.15, samples=541 iops : min= 1, max= 16, avg= 4.93, stdev= 3.13, samples=541 lat (msec) : 10=6.05%, 20=16.44%, 50=18.10%, 100=24.19%, 250=29.26% lat (msec) : 500=5.79%, 750=0.13%, 2000=0.03% cpu : usr=0.03%, sys=1.12%, ctx=5313, 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=85.7KiB/s (87.7kB/s), 21.2KiB/s-21.7KiB/s (21.7kB/s-22.2kB/s), io=23.4MiB (24.6MB), run=278057-280322msec WRITE: bw=89.7KiB/s (91.8kB/s), 22.4KiB/s-22.6KiB/s (22.9kB/s-23.2kB/s), io=24.6MiB (25.7MB), run=278057-280322msec 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=144183: Fri Sep 4 19:21:04 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(5920KiB/26818msec) clat (usec): min=30, max=243690, avg=38457.04, stdev=30448.02 lat (usec): min=30, max=243692, avg=38461.52, stdev=30444.94 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 13829], | 30.00th=[ 23200], 40.00th=[ 28443], 50.00th=[ 33817], 60.00th=[ 42206], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 72877], 95.00th=[ 86508], | 99.00th=[149947], 99.50th=[162530], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 31, max= 533, per=25.59%, avg=217.50, stdev=95.44, samples=52 iops : min= 1, max= 33, avg=12.83, stdev= 6.06, samples=52 write: IOPS=14, BW=237KiB/s (243kB/s)(6368KiB/26818msec); 0 zone resets clat (usec): min=1203, max=321790, avg=31450.35, stdev=37251.89 lat (usec): min=1214, max=321793, avg=31452.83, stdev=37251.77 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1713], 10.00th=[ 2180], 20.00th=[ 3982], | 30.00th=[ 6783], 40.00th=[ 10945], 50.00th=[ 16581], 60.00th=[ 26870], | 70.00th=[ 35914], 80.00th=[ 49546], 90.00th=[ 83362], 95.00th=[107480], | 99.00th=[154141], 99.50th=[177210], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 31, max= 596, per=26.46%, avg=236.56, stdev=116.91, samples=52 iops : min= 1, max= 37, avg=14.02, stdev= 7.41, samples=52 lat (usec) : 50=0.78%, 100=6.38%, 250=0.91%, 500=0.26%, 750=0.13% lat (msec) : 2=4.69%, 4=6.12%, 10=8.98%, 20=11.59%, 50=34.90% lat (msec) : 100=20.96%, 250=4.17%, 500=0.13% cpu : usr=0.07%, sys=6.73%, ctx=1479, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144184: Fri Sep 4 19:21:04 2026 read: IOPS=13, BW=217KiB/s (222kB/s)(5744KiB/26528msec) clat (usec): min=41, max=264575, avg=40103.16, stdev=35595.14 lat (usec): min=42, max=264575, avg=40107.43, stdev=35596.61 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 13435], | 30.00th=[ 21365], 40.00th=[ 27657], 50.00th=[ 35914], 60.00th=[ 44303], | 70.00th=[ 51119], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 93848], | 99.00th=[177210], 99.50th=[244319], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 62, max= 468, per=25.39%, avg=215.81, stdev=95.51, samples=52 iops : min= 3, max= 29, avg=12.71, stdev= 6.09, samples=52 write: IOPS=15, BW=247KiB/s (253kB/s)(6544KiB/26528msec); 0 zone resets clat (usec): min=1428, max=164573, avg=29237.07, stdev=31090.75 lat (usec): min=1430, max=164575, avg=29256.98, stdev=31100.11 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1893], 10.00th=[ 2704], 20.00th=[ 4293], | 30.00th=[ 6980], 40.00th=[ 10683], 50.00th=[ 17171], 60.00th=[ 28181], | 70.00th=[ 36439], 80.00th=[ 52691], 90.00th=[ 72877], 95.00th=[ 92799], | 99.00th=[135267], 99.50th=[139461], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 31, max= 574, per=28.21%, avg=252.20, stdev=111.43, samples=51 iops : min= 1, max= 35, avg=15.02, stdev= 7.05, samples=51 lat (usec) : 50=0.78%, 100=6.38%, 250=0.65%, 1000=0.13% lat (msec) : 2=3.26%, 4=6.77%, 10=11.33%, 20=11.59%, 50=33.07% lat (msec) : 100=22.01%, 250=3.91%, 500=0.13% cpu : usr=0.07%, sys=6.38%, ctx=1471, 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=144185: Fri Sep 4 19:21:04 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(6256KiB/28172msec) clat (usec): min=34, max=378790, avg=40805.43, stdev=41997.00 lat (usec): min=35, max=378790, avg=40806.64, stdev=41996.97 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 68], 20.00th=[ 273], | 30.00th=[ 22152], 40.00th=[ 28705], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 80217], 95.00th=[103285], | 99.00th=[170918], 99.50th=[354419], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 31, max= 478, per=25.91%, avg=220.25, stdev=98.52, samples=55 iops : min= 1, max= 29, avg=12.98, stdev= 6.23, samples=55 write: IOPS=13, BW=214KiB/s (219kB/s)(6032KiB/28172msec); 0 zone resets clat (usec): min=1495, max=253115, avg=31951.80, stdev=34869.68 lat (usec): min=1497, max=253117, avg=31955.08, stdev=34874.89 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1975], 10.00th=[ 3458], 20.00th=[ 5276], | 30.00th=[ 8717], 40.00th=[ 12911], 50.00th=[ 20317], 60.00th=[ 29230], | 70.00th=[ 38011], 80.00th=[ 54264], 90.00th=[ 79168], 95.00th=[105382], | 99.00th=[160433], 99.50th=[183501], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 62, max= 544, per=23.47%, avg=209.80, stdev=99.37, samples=55 iops : min= 3, max= 34, avg=12.33, stdev= 6.30, samples=55 lat (usec) : 50=0.91%, 100=7.68%, 250=1.30%, 500=0.39%, 750=0.13% lat (msec) : 2=2.60%, 4=4.30%, 10=9.90%, 20=11.20%, 50=36.07% lat (msec) : 100=19.79%, 250=5.21%, 500=0.52% cpu : usr=0.08%, sys=6.39%, ctx=1515, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144186: Fri Sep 4 19:21:04 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(6032KiB/27291msec) clat (usec): min=37, max=164975, avg=38665.63, stdev=30899.13 lat (usec): min=37, max=164976, avg=38671.93, stdev=30898.27 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 375], | 30.00th=[ 20841], 40.00th=[ 27919], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 80217], 95.00th=[ 93848], | 99.00th=[125305], 99.50th=[141558], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 63, max= 480, per=25.70%, avg=218.45, stdev=83.76, samples=53 iops : min= 3, max= 30, avg=12.87, stdev= 5.30, samples=53 write: IOPS=14, BW=229KiB/s (235kB/s)(6256KiB/27291msec); 0 zone resets clat (usec): min=1370, max=273817, avg=32050.84, stdev=36808.86 lat (usec): min=1371, max=273820, avg=32054.31, stdev=36808.50 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 2311], 10.00th=[ 2900], 20.00th=[ 5145], | 30.00th=[ 7767], 40.00th=[ 11469], 50.00th=[ 18220], 60.00th=[ 26870], | 70.00th=[ 37487], 80.00th=[ 49546], 90.00th=[ 84411], 95.00th=[111674], | 99.00th=[162530], 99.50th=[177210], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 542, per=25.51%, avg=228.08, stdev=108.05, samples=53 iops : min= 1, max= 33, avg=13.47, stdev= 6.82, samples=53 lat (usec) : 50=1.30%, 100=7.55%, 250=0.91%, 500=0.13%, 750=0.13% lat (msec) : 2=2.47%, 4=5.47%, 10=11.72%, 20=11.20%, 50=32.55% lat (msec) : 100=21.09%, 250=5.34%, 500=0.13% cpu : usr=0.08%, sys=6.49%, ctx=1509, 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=850KiB/s (871kB/s), 217KiB/s-222KiB/s (222kB/s-227kB/s), io=23.4MiB (24.5MB), run=26528-28172msec WRITE: bw=895KiB/s (916kB/s), 214KiB/s-247KiB/s (219kB/s-253kB/s), io=24.6MiB (25.8MB), run=26528-28172msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144188: Fri Sep 4 19:21:47 2026 read: IOPS=5, BW=85.2KiB/s (87.2kB/s)(5920KiB/69489msec) clat (msec): min=6, max=287, avg=34.82, stdev=35.93 lat (msec): min=6, max=287, avg=34.82, stdev=35.93 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 68], 95.00th=[ 100], | 99.00th=[ 209], 99.50th=[ 234], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 411, per=28.59%, avg=97.50, stdev=65.33, samples=119 iops : min= 1, max= 25, avg= 5.34, stdev= 4.17, samples=119 write: IOPS=5, BW=91.6KiB/s (93.8kB/s)(6368KiB/69489msec); 0 zone resets clat (msec): min=42, max=455, avg=142.03, stdev=71.39 lat (msec): min=42, max=455, avg=142.04, stdev=71.41 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 124], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 188], 90.00th=[ 236], 95.00th=[ 292], | 99.00th=[ 388], 99.50th=[ 435], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 189, per=25.80%, avg=92.61, stdev=40.16, samples=135 iops : min= 1, max= 11, avg= 5.03, stdev= 2.52, samples=135 lat (msec) : 10=2.86%, 20=16.93%, 50=21.35%, 100=20.70%, 250=33.85% lat (msec) : 500=4.30% cpu : usr=0.04%, sys=1.30%, ctx=1355, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144189: Fri Sep 4 19:21:47 2026 read: IOPS=5, BW=81.8KiB/s (83.8kB/s)(5744KiB/70189msec) clat (msec): min=6, max=348, avg=35.80, stdev=38.69 lat (msec): min=6, max=348, avg=35.80, stdev=38.69 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 81], 95.00th=[ 123], | 99.00th=[ 174], 99.50th=[ 264], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 22, max= 351, per=28.08%, avg=95.75, stdev=68.81, samples=117 iops : min= 1, max= 21, avg= 5.24, stdev= 4.36, samples=117 write: IOPS=5, BW=93.2KiB/s (95.5kB/s)(6544KiB/70189msec); 0 zone resets clat (msec): min=35, max=470, avg=140.06, stdev=68.84 lat (msec): min=35, max=470, avg=140.06, stdev=68.84 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 83], | 30.00th=[ 100], 40.00th=[ 112], 50.00th=[ 124], 60.00th=[ 140], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 241], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 22, max= 223, per=26.13%, avg=93.79, stdev=41.97, samples=136 iops : min= 1, max= 13, avg= 5.10, stdev= 2.65, samples=136 lat (msec) : 10=2.99%, 20=18.23%, 50=18.23%, 100=20.96%, 250=35.03% lat (msec) : 500=4.56% cpu : usr=0.05%, sys=1.26%, ctx=1351, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144190: Fri Sep 4 19:21:47 2026 read: IOPS=5, BW=92.2KiB/s (94.4kB/s)(6256KiB/67842msec) clat (msec): min=5, max=230, avg=35.49, stdev=33.17 lat (msec): min=5, max=230, avg=35.49, stdev=33.18 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 103], | 99.00th=[ 205], 99.50th=[ 222], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 30, max= 351, per=29.15%, avg=99.39, stdev=67.44, samples=124 iops : min= 1, max= 21, avg= 5.46, stdev= 4.27, samples=124 write: IOPS=5, BW=88.9KiB/s (91.0kB/s)(6032KiB/67842msec); 0 zone resets clat (msec): min=40, max=378, avg=142.97, stdev=65.58 lat (msec): min=40, max=378, avg=142.97, stdev=65.58 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 102], 40.00th=[ 112], 50.00th=[ 130], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 234], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 363], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 30, max= 191, per=24.65%, avg=88.50, stdev=37.88, samples=132 iops : min= 1, max= 11, avg= 4.77, stdev= 2.42, samples=132 lat (msec) : 10=2.08%, 20=16.02%, 50=24.35%, 100=19.92%, 250=33.72% lat (msec) : 500=3.91% cpu : usr=0.04%, sys=1.35%, ctx=1366, 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=144191: Fri Sep 4 19:21:47 2026 read: IOPS=5, BW=86.7KiB/s (88.8kB/s)(6032KiB/69578msec) clat (msec): min=6, max=250, avg=35.63, stdev=32.39 lat (msec): min=6, max=250, avg=35.63, stdev=32.39 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 45], 90.00th=[ 80], 95.00th=[ 114], | 99.00th=[ 148], 99.50th=[ 218], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 29, max= 288, per=28.90%, avg=98.54, stdev=61.31, samples=119 iops : min= 1, max= 18, avg= 5.39, stdev= 3.93, samples=119 write: IOPS=5, BW=89.9KiB/s (92.1kB/s)(6256KiB/69578msec); 0 zone resets clat (msec): min=38, max=470, avg=143.36, stdev=70.76 lat (msec): min=38, max=470, avg=143.36, stdev=70.76 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 194], 90.00th=[ 236], 95.00th=[ 296], | 99.00th=[ 384], 99.50th=[ 430], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 31, max= 192, per=25.28%, avg=90.77, stdev=41.64, samples=135 iops : min= 1, max= 12, avg= 4.91, stdev= 2.65, samples=135 lat (msec) : 10=1.82%, 20=15.36%, 50=25.13%, 100=19.14%, 250=34.24% lat (msec) : 500=4.30% cpu : usr=0.02%, sys=1.26%, ctx=1341, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=341KiB/s (349kB/s), 81.8KiB/s-92.2KiB/s (83.8kB/s-94.4kB/s), io=23.4MiB (24.5MB), run=67842-70189msec WRITE: bw=359KiB/s (368kB/s), 88.9KiB/s-93.2KiB/s (91.0kB/s-95.5kB/s), io=24.6MiB (25.8MB), run=67842-70189msec 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=144212: Fri Sep 4 19:22:01 2026 read: IOPS=1, BW=2000KiB/s (2048kB/s)(7168KiB/3584msec) clat (usec): min=560, max=616856, avg=267180.47, stdev=185138.77 lat (usec): min=561, max=616857, avg=267185.12, stdev=185139.77 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[196084], | 30.00th=[219153], 40.00th=[219153], 50.00th=[227541], 60.00th=[291505], | 70.00th=[291505], 80.00th=[320865], 90.00th=[616563], 95.00th=[616563], | 99.00th=[616563], 99.50th=[616563], 99.90th=[616563], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 1809, max= 2809, per=49.27%, avg=2119.80, stdev=397.39, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1429KiB/s (1463kB/s)(5120KiB/3584msec); 0 zone resets clat (msec): min=163, max=566, avg=318.04, stdev=151.08 lat (msec): min=165, max=566, avg=318.64, stdev=150.43 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1903, max= 4055, per=44.28%, avg=2667.00, stdev=1204.08, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.03%, sys=11.86%, ctx=245, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144213: Fri Sep 4 19:22:01 2026 read: IOPS=0, BW=430KiB/s (441kB/s)(2048KiB/4760msec) clat (usec): min=678, max=224422, avg=112550.56, stdev=158210.94 lat (usec): min=680, max=224424, avg=112552.58, stdev=158211.44 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[225444], | 70.00th=[225444], 80.00th=[225444], 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= 2023, max= 2027, per=47.07%, avg=2025.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2151KiB/s (2203kB/s)(10.0MiB/4760msec); 0 zone resets clat (msec): min=98, max=850, avg=449.63, stdev=275.20 lat (msec): min=98, max=850, avg=449.85, stdev=275.22 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 142], | 30.00th=[ 264], 40.00th=[ 309], 50.00th=[ 376], 60.00th=[ 380], | 70.00th=[ 502], 80.00th=[ 751], 90.00th=[ 827], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1906, max= 4079, per=49.03%, avg=2953.17, stdev=1069.03, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=16.67%, 500=41.67%, 1000=25.00% cpu : usr=0.00%, sys=12.31%, ctx=152, 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=144214: Fri Sep 4 19:22:01 2026 read: IOPS=1, BW=1784KiB/s (1827kB/s)(6144KiB/3444msec) clat (usec): min=478, max=336189, avg=148228.79, stdev=163994.62 lat (usec): min=480, max=336190, avg=148230.26, stdev=163994.44 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 627], 50.00th=[ 627], 60.00th=[250610], | 70.00th=[299893], 80.00th=[299893], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 2027, max= 5427, per=73.59%, avg=3165.67, stdev=1958.39, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1784KiB/s (1827kB/s)(6144KiB/3444msec); 0 zone resets clat (msec): min=202, max=776, avg=400.14, stdev=195.61 lat (msec): min=202, max=776, avg=400.67, stdev=195.52 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 347], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1402, max= 2043, per=30.52%, avg=1838.40, stdev=262.68, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=8.33%, 500=58.33%, 1000=8.33% cpu : usr=0.00%, sys=10.54%, ctx=157, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144215: Fri Sep 4 19:22:01 2026 read: IOPS=1, BW=1387KiB/s (1420kB/s)(5120KiB/3691msec) clat (usec): min=466, max=345525, avg=87824.70, stdev=149310.28 lat (usec): min=467, max=345527, avg=87825.97, stdev=149310.54 clat percentiles (usec): | 1.00th=[ 465], 5.00th=[ 465], 10.00th=[ 465], 20.00th=[ 465], | 30.00th=[ 685], 40.00th=[ 685], 50.00th=[ 1057], 60.00th=[ 1057], | 70.00th=[ 91751], 80.00th=[ 91751], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1942KiB/s (1989kB/s)(7168KiB/3691msec); 0 zone resets clat (msec): min=189, max=870, avg=455.08, stdev=234.98 lat (msec): min=189, max=871, avg=455.34, stdev=235.11 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 264], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 477], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 592], 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= 1460, max= 3806, per=37.85%, avg=2279.50, stdev=1045.48, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=8.33%, 500=33.33%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=9.62%, ctx=127, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4303KiB/s (4406kB/s), 430KiB/s-2000KiB/s (441kB/s-2048kB/s), io=20.0MiB (20.0MB), run=3444-4760msec WRITE: bw=6024KiB/s (6168kB/s), 1429KiB/s-2151KiB/s (1463kB/s-2203kB/s), io=28.0MiB (29.4MB), run=3444-4760msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144217: Fri Sep 4 19:22:02 2026 read: IOPS=1, BW=1794KiB/s (1837kB/s)(7168KiB/3995msec) clat (msec): min=87, max=1061, avg=339.14, stdev=352.53 lat (msec): min=87, max=1061, avg=339.14, stdev=352.53 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 128], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 523], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1367, max= 4071, per=65.86%, avg=3130.33, stdev=1528.23, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1282KiB/s (1312kB/s)(5120KiB/3995msec); 0 zone resets clat (msec): min=101, max=486, avg=305.77, stdev=141.21 lat (msec): min=101, max=486, avg=305.89, stdev=141.21 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 2011, max= 4071, per=40.64%, avg=2704.33, stdev=1183.61, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.68%, ctx=53, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144218: Fri Sep 4 19:22:02 2026 read: IOPS=0, BW=475KiB/s (487kB/s)(2048KiB/4308msec) clat (msec): min=109, max=264, avg=186.65, stdev=109.56 lat (msec): min=109, max=264, avg=186.65, stdev=109.56 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 264], 95.00th=[ 264], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 1796, max= 2019, per=40.13%, avg=1907.50, stdev=157.68, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2377KiB/s (2434kB/s)(10.0MiB/4308msec); 0 zone resets clat (msec): min=156, max=654, avg=381.27, stdev=145.98 lat (msec): min=156, max=654, avg=381.36, stdev=145.97 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 236], | 30.00th=[ 279], 40.00th=[ 334], 50.00th=[ 368], 60.00th=[ 388], | 70.00th=[ 397], 80.00th=[ 460], 90.00th=[ 542], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1961, max= 4079, per=34.76%, avg=2313.57, stdev=778.95, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 250=25.00%, 500=58.33%, 750=16.67% cpu : usr=0.02%, sys=5.46%, ctx=129, 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=144219: Fri Sep 4 19:22:02 2026 read: IOPS=1, BW=1537KiB/s (1574kB/s)(6144KiB/3998msec) clat (msec): min=58, max=553, avg=172.87, stdev=188.29 lat (msec): min=58, max=553, avg=172.88, stdev=188.29 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 68], | 30.00th=[ 68], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 117], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1961, max= 4063, per=53.03%, avg=2520.50, stdev=1028.87, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1537KiB/s (1574kB/s)(6144KiB/3998msec); 0 zone resets clat (msec): min=186, max=1345, avg=466.51, stdev=436.95 lat (msec): min=186, max=1345, avg=466.87, stdev=437.09 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 342], | 70.00th=[ 405], 80.00th=[ 405], 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= 1961, max= 3313, per=35.10%, avg=2336.00, stdev=652.27, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=4.08%, ctx=80, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144220: Fri Sep 4 19:22:02 2026 read: IOPS=1, BW=1206KiB/s (1234kB/s)(5120KiB/4247msec) clat (msec): min=55, max=590, avg=227.09, stdev=215.77 lat (msec): min=55, max=590, avg=227.09, stdev=215.77 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1976, max= 4063, per=56.62%, avg=2691.33, stdev=1188.26, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1688KiB/s (1728kB/s)(7168KiB/4247msec); 0 zone resets clat (msec): min=131, max=1101, avg=438.83, stdev=326.96 lat (msec): min=131, max=1101, avg=439.65, stdev=326.78 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 155], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 372], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 510], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1406, max= 2035, per=27.90%, avg=1857.00, stdev=301.64, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=4.07%, ctx=75, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4754KiB/s (4868kB/s), 475KiB/s-1794KiB/s (487kB/s-1837kB/s), io=20.0MiB (20.0MB), run=3995-4308msec WRITE: bw=6656KiB/s (6815kB/s), 1282KiB/s-2377KiB/s (1312kB/s-2434kB/s), io=28.0MiB (29.4MB), run=3995-4308msec 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=144227: Fri Sep 4 19:22:15 2026 read: IOPS=0, BW=3833KiB/s (3925kB/s)(12.0MiB/3206msec) clat (msec): min=690, max=1381, avg=996.90, stdev=351.90 lat (msec): min=690, max=1381, avg=996.91, stdev=351.90 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] 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) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.68%, ctx=45, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144228: Fri Sep 4 19:22:15 2026 read: IOPS=0, BW=2196KiB/s (2249kB/s)(4096KiB/1865msec) clat (nsec): min=329994k, max=329994k, avg=329994335.00, stdev= 0.00 lat (nsec): min=329997k, max=329997k, avg=329996830.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7876, max= 7876, per=100.00%, avg=7876.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4392KiB/s (4498kB/s)(8192KiB/1865msec); 0 zone resets clat (msec): min=680, max=771, avg=725.94, stdev=63.87 lat (msec): min=681, max=772, avg=727.17, stdev=64.33 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 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= 7846, max= 7846, per=57.13%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=6.81%, ctx=56, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144229: Fri Sep 4 19:22:15 2026 write: IOPS=1, BW=5753KiB/s (5891kB/s)(12.0MiB/2136msec); 0 zone resets clat (msec): min=594, max=718, avg=651.87, stdev=62.57 lat (msec): min=598, max=719, avg=654.59, stdev=60.73 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7787, max= 7846, per=56.92%, avg=7816.50, stdev=41.72, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.14%, sys=6.32%, ctx=46, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144230: Fri Sep 4 19:22:15 2026 write: IOPS=1, BW=5150KiB/s (5274kB/s)(12.0MiB/2386msec); 0 zone resets clat (msec): min=416, max=1361, avg=759.25, stdev=522.97 lat (msec): min=418, max=1361, avg=760.12, stdev=522.60 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min=15574, max=15574, per=100.00%, avg=15574.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.04%, sys=4.70%, ctx=54, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5110KiB/s (5233kB/s), 2196KiB/s-3833KiB/s (2249kB/s-3925kB/s), io=16.0MiB (16.8MB), run=1865-3206msec WRITE: bw=13.4MiB/s (14.1MB/s), 4392KiB/s-5753KiB/s (4498kB/s-5891kB/s), io=32.0MiB (33.6MB), run=1865-2386msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144232: Fri Sep 4 19:22:16 2026 read: IOPS=1, BW=4783KiB/s (4898kB/s)(12.0MiB/2569msec) clat (msec): min=642, max=962, avg=833.08, stdev=168.16 lat (msec): min=642, max=962, avg=833.08, stdev=168.16 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=13.20%, ctx=305, 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=144233: Fri Sep 4 19:22:16 2026 read: IOPS=0, BW=1535KiB/s (1572kB/s)(4096KiB/2668msec) clat (nsec): min=950102k, max=950102k, avg=950101919.00, stdev= 0.00 lat (nsec): min=950105k, max=950105k, avg=950105327.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3070KiB/s (3144kB/s)(8192KiB/2668msec); 0 zone resets clat (msec): min=758, max=900, avg=829.24, stdev=100.58 lat (msec): min=758, max=900, avg=829.69, stdev=100.56 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=[ 902], | 70.00th=[ 902], 80.00th=[ 902], 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= 8143, max= 8143, per=92.45%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=100.00% cpu : usr=0.04%, sys=5.47%, ctx=106, 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=144234: Fri Sep 4 19:22:16 2026 write: IOPS=0, BW=3303KiB/s (3383kB/s)(12.0MiB/3720msec); 0 zone resets clat (msec): min=667, max=2084, avg=1211.98, stdev=763.26 lat (msec): min=668, max=2084, avg=1212.39, stdev=763.18 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 2089], 80.00th=[ 2089], 90.00th=[ 2089], 95.00th=[ 2089], | 99.00th=[ 2089], 99.50th=[ 2089], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 8062, max= 8175, per=92.17%, avg=8118.50, stdev=79.90, 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=4.01%, 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=144235: Fri Sep 4 19:22:16 2026 write: IOPS=0, BW=3430KiB/s (3513kB/s)(12.0MiB/3582msec); 0 zone resets clat (msec): min=284, max=2009, avg=1173.88, stdev=863.81 lat (msec): min=284, max=2010, avg=1174.36, stdev=863.89 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8175, max= 8175, per=92.81%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.71%, ctx=39, 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=6141KiB/s (6288kB/s), 1535KiB/s-4783KiB/s (1572kB/s-4898kB/s), io=16.0MiB (16.8MB), run=2569-2668msec WRITE: bw=8809KiB/s (9020kB/s), 3070KiB/s-3430KiB/s (3144kB/s-3513kB/s), io=32.0MiB (33.6MB), run=2668-3720msec