== sanity test 398b: DIO and buffer IO race ============== 17:00:38 (1787778038) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.57697 s, 7.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178930: Wed Aug 26 17:03:12 2026 read: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5992KiB/133464msec) clat (usec): min=42, max=343434, avg=49231.72, stdev=34713.01 lat (usec): min=42, max=343436, avg=49233.19, stdev=34713.35 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 12256], 10.00th=[ 17171], 20.00th=[ 22938], | 30.00th=[ 28705], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 50070], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[112722], | 99.00th=[179307], 99.50th=[198181], 99.90th=[278922], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 103, per=24.72%, avg=44.26, stdev=18.45, samples=262 iops : min= 1, max= 25, avg=10.41, stdev= 4.65, samples=262 write: IOPS=11, BW=47.2KiB/s (48.3kB/s)(6296KiB/133464msec); 0 zone resets clat (usec): min=743, max=237373, avg=37823.92, stdev=38993.56 lat (usec): min=744, max=237375, avg=37826.26, stdev=38993.97 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1385], 20.00th=[ 3195], | 30.00th=[ 8225], 40.00th=[ 17433], 50.00th=[ 27132], 60.00th=[ 36963], | 70.00th=[ 48497], 80.00th=[ 66323], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[168821], 99.50th=[187696], 99.90th=[217056], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 159, per=24.77%, avg=46.56, stdev=22.63, samples=262 iops : min= 1, max= 39, avg=11.00, stdev= 5.71, samples=262 lat (usec) : 50=0.10%, 100=1.46%, 250=0.23%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=6.97%, 4=4.00%, 10=5.31%, 20=10.03%, 50=37.40% lat (msec) : 100=26.46%, 250=7.62%, 500=0.10% cpu : usr=0.07%, sys=4.40%, ctx=6344, 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=178931: Wed Aug 26 17:03:12 2026 read: IOPS=11, BW=44.9KiB/s (46.0kB/s)(5940KiB/132218msec) clat (usec): min=39, max=288252, avg=48696.45, stdev=31692.88 lat (usec): min=40, max=288255, avg=48698.12, stdev=31693.03 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 10421], 10.00th=[ 17171], 20.00th=[ 23462], | 30.00th=[ 30278], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 50070], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[154141], 99.50th=[170918], 99.90th=[223347], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 5, max= 111, per=24.89%, avg=44.55, stdev=18.82, samples=260 iops : min= 1, max= 27, avg=10.48, stdev= 4.74, samples=260 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(6348KiB/132218msec); 0 zone resets clat (usec): min=741, max=257351, avg=37602.42, stdev=38972.65 lat (usec): min=742, max=257353, avg=37610.51, stdev=38977.67 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1532], 20.00th=[ 3982], | 30.00th=[ 8586], 40.00th=[ 17957], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 47973], 80.00th=[ 64226], 90.00th=[ 91751], 95.00th=[119014], | 99.00th=[170918], 99.50th=[196084], 99.90th=[233833], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 151, per=25.34%, avg=47.63, stdev=21.89, samples=260 iops : min= 1, max= 37, avg=11.27, stdev= 5.50, samples=260 lat (usec) : 50=0.10%, 100=1.66%, 250=0.26%, 750=0.03%, 1000=0.26% lat (msec) : 2=6.18%, 4=4.07%, 10=6.15%, 20=9.67%, 50=37.60% lat (msec) : 100=26.50%, 250=7.45%, 500=0.07% cpu : usr=0.08%, sys=4.46%, ctx=6406, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178932: Wed Aug 26 17:03:12 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6028KiB/132637msec) clat (usec): min=41, max=275058, avg=49028.65, stdev=33573.20 lat (usec): min=41, max=275060, avg=49031.10, stdev=33572.35 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 12256], 10.00th=[ 17171], 20.00th=[ 23987], | 30.00th=[ 29754], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[112722], | 99.00th=[164627], 99.50th=[187696], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 103, per=25.16%, avg=45.04, stdev=18.91, samples=260 iops : min= 1, max= 25, avg=10.61, stdev= 4.75, samples=260 write: IOPS=11, BW=47.2KiB/s (48.3kB/s)(6260KiB/132637msec); 0 zone resets clat (usec): min=839, max=311602, avg=37407.83, stdev=41116.11 lat (usec): min=840, max=311603, avg=37410.77, stdev=41115.27 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1254], 10.00th=[ 1483], 20.00th=[ 3392], | 30.00th=[ 7111], 40.00th=[ 15401], 50.00th=[ 25035], 60.00th=[ 33817], | 70.00th=[ 47449], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[124257], | 99.00th=[168821], 99.50th=[181404], 99.90th=[283116], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 110, per=24.99%, avg=46.98, stdev=21.38, samples=259 iops : min= 1, max= 27, avg=11.10, stdev= 5.38, samples=259 lat (usec) : 50=0.16%, 100=1.27%, 250=0.10%, 500=0.03%, 1000=0.20% lat (msec) : 2=7.00%, 4=4.23%, 10=6.84%, 20=9.60%, 50=37.17% lat (msec) : 100=25.78%, 250=7.36%, 500=0.26% cpu : usr=0.06%, sys=4.28%, ctx=6485, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178933: Wed Aug 26 17:03:12 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(6052KiB/132147msec) clat (usec): min=42, max=305741, avg=48680.19, stdev=32895.93 lat (usec): min=43, max=305743, avg=48684.72, stdev=32893.07 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 4555], 10.00th=[ 17171], 20.00th=[ 23462], | 30.00th=[ 29754], 40.00th=[ 35914], 50.00th=[ 42206], 60.00th=[ 50070], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[149947], 99.50th=[181404], 99.90th=[278922], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 119, per=25.65%, avg=45.91, stdev=18.73, samples=257 iops : min= 1, max= 29, avg=10.84, stdev= 4.72, samples=257 write: IOPS=11, BW=47.2KiB/s (48.3kB/s)(6236KiB/132147msec); 0 zone resets clat (usec): min=841, max=286058, avg=37323.79, stdev=39785.87 lat (usec): min=843, max=286060, avg=37333.27, stdev=39782.22 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1418], 20.00th=[ 3621], | 30.00th=[ 7767], 40.00th=[ 16188], 50.00th=[ 25297], 60.00th=[ 34341], | 70.00th=[ 47973], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[175113], 99.50th=[193987], 99.90th=[258999], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 118, per=24.93%, avg=46.87, stdev=22.10, samples=259 iops : min= 1, max= 29, avg=11.07, stdev= 5.58, samples=259 lat (usec) : 50=0.10%, 100=1.92%, 250=0.16%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.16% lat (msec) : 2=7.00%, 4=3.55%, 10=6.77%, 20=9.11%, 50=36.85% lat (msec) : 100=26.79%, 250=7.29%, 500=0.16% cpu : usr=0.07%, sys=4.56%, ctx=6512, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=180KiB/s (184kB/s), 44.9KiB/s-45.8KiB/s (45.0kB/s-46.9kB/s), io=23.4MiB (24.6MB), run=132147-133464msec WRITE: bw=188KiB/s (193kB/s), 47.2KiB/s-48.0KiB/s (48.3kB/s-49.2kB/s), io=24.6MiB (25.7MB), run=132147-133464msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178925: Wed Aug 26 17:04:01 2026 read: IOPS=8, BW=32.6KiB/s (33.4kB/s)(5992KiB/183641msec) clat (msec): min=5, max=1077, avg=47.29, stdev=50.16 lat (msec): min=5, max=1077, avg=47.29, stdev=50.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 99], 95.00th=[ 136], | 99.00th=[ 220], 99.50th=[ 259], 99.90th=[ 351], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 158, per=25.74%, avg=33.46, stdev=23.33, samples=348 iops : min= 1, max= 39, avg= 7.69, stdev= 5.86, samples=348 write: IOPS=8, BW=34.3KiB/s (35.1kB/s)(6296KiB/183641msec); 0 zone resets clat (msec): min=10, max=400, avg=71.36, stdev=49.28 lat (msec): min=10, max=400, avg=71.37, stdev=49.28 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 67], | 70.00th=[ 80], 80.00th=[ 103], 90.00th=[ 138], 95.00th=[ 171], | 99.00th=[ 251], 99.50th=[ 288], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 126, per=25.21%, avg=34.29, stdev=19.70, samples=357 iops : min= 1, max= 31, avg= 7.90, stdev= 4.96, samples=357 lat (msec) : 10=1.53%, 20=12.08%, 50=42.97%, 100=28.35%, 250=14.29% lat (msec) : 500=0.75%, 2000=0.03% cpu : usr=0.06%, sys=1.52%, ctx=4564, 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=178926: Wed Aug 26 17:04:01 2026 read: IOPS=8, BW=32.3KiB/s (33.1kB/s)(5940KiB/183646msec) clat (msec): min=5, max=1189, avg=47.29, stdev=52.53 lat (msec): min=5, max=1189, avg=47.30, stdev=52.54 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 101], 95.00th=[ 142], | 99.00th=[ 211], 99.50th=[ 234], 99.90th=[ 430], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 150, per=25.42%, avg=33.04, stdev=22.74, samples=349 iops : min= 1, max= 37, avg= 7.59, stdev= 5.72, samples=349 write: IOPS=8, BW=34.6KiB/s (35.4kB/s)(6348KiB/183646msec); 0 zone resets clat (msec): min=11, max=526, avg=71.14, stdev=52.65 lat (msec): min=11, max=526, avg=71.15, stdev=52.65 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 80], 80.00th=[ 104], 90.00th=[ 138], 95.00th=[ 169], | 99.00th=[ 268], 99.50th=[ 305], 99.90th=[ 393], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 110, per=25.48%, avg=34.66, stdev=20.37, samples=356 iops : min= 1, max= 27, avg= 7.99, stdev= 5.12, samples=356 lat (msec) : 10=1.30%, 20=12.11%, 50=44.30%, 100=26.69%, 250=14.62% lat (msec) : 500=0.91%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=1.53%, ctx=4695, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178927: Wed Aug 26 17:04:01 2026 read: IOPS=8, BW=32.9KiB/s (33.7kB/s)(6028KiB/183097msec) clat (msec): min=4, max=413, avg=48.07, stdev=44.04 lat (msec): min=4, max=413, avg=48.08, stdev=44.04 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 108], 95.00th=[ 140], | 99.00th=[ 211], 99.50th=[ 230], 99.90th=[ 363], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 150, per=25.53%, avg=33.19, stdev=21.87, samples=353 iops : min= 1, max= 37, avg= 7.62, stdev= 5.49, samples=353 write: IOPS=8, BW=34.2KiB/s (35.0kB/s)(6260KiB/183097msec); 0 zone resets clat (msec): min=10, max=1215, avg=70.40, stdev=56.16 lat (msec): min=10, max=1215, avg=70.40, stdev=56.16 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 66], | 70.00th=[ 81], 80.00th=[ 100], 90.00th=[ 131], 95.00th=[ 163], | 99.00th=[ 243], 99.50th=[ 296], 99.90th=[ 535], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 111, per=24.99%, avg=33.98, stdev=20.68, samples=358 iops : min= 1, max= 27, avg= 7.82, stdev= 5.20, samples=358 lat (msec) : 10=1.40%, 20=11.75%, 50=42.68%, 100=28.61%, 250=14.94% lat (msec) : 500=0.55%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.62%, ctx=4754, 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=178928: Wed Aug 26 17:04:01 2026 read: IOPS=8, BW=33.2KiB/s (34.0kB/s)(6052KiB/182235msec) clat (msec): min=5, max=374, avg=48.74, stdev=44.72 lat (msec): min=5, max=374, avg=48.74, stdev=44.72 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 72], 90.00th=[ 105], 95.00th=[ 142], | 99.00th=[ 215], 99.50th=[ 259], 99.90th=[ 321], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 142, per=25.90%, avg=33.67, stdev=21.55, samples=349 iops : min= 1, max= 35, avg= 7.75, stdev= 5.40, samples=349 write: IOPS=8, BW=34.2KiB/s (35.0kB/s)(6236KiB/182235msec); 0 zone resets clat (msec): min=9, max=1245, avg=69.29, stdev=53.96 lat (msec): min=9, max=1245, avg=69.29, stdev=53.96 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 67], | 70.00th=[ 80], 80.00th=[ 100], 90.00th=[ 128], 95.00th=[ 155], | 99.00th=[ 236], 99.50th=[ 271], 99.90th=[ 351], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 119, per=25.07%, avg=34.10, stdev=20.28, samples=355 iops : min= 1, max= 29, avg= 7.85, stdev= 5.10, samples=355 lat (msec) : 10=1.66%, 20=11.91%, 50=42.48%, 100=28.71%, 250=14.58% lat (msec) : 500=0.62%, 2000=0.03% cpu : usr=0.06%, sys=1.57%, ctx=4682, 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=131KiB/s (134kB/s), 32.3KiB/s-33.2KiB/s (33.1kB/s-34.0kB/s), io=23.4MiB (24.6MB), run=182235-183646msec WRITE: bw=137KiB/s (140kB/s), 34.2KiB/s-34.6KiB/s (35.0kB/s-35.4kB/s), io=24.6MiB (25.7MB), run=182235-183646msec 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=178992: Wed Aug 26 17:04:48 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(5920KiB/34853msec) clat (usec): min=41, max=351331, avg=50648.37, stdev=35252.12 lat (usec): min=42, max=351332, avg=50661.51, stdev=35245.76 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 77], 10.00th=[ 17171], 20.00th=[ 26346], | 30.00th=[ 33162], 40.00th=[ 41157], 50.00th=[ 46400], 60.00th=[ 54264], | 70.00th=[ 59507], 80.00th=[ 68682], 90.00th=[ 85459], 95.00th=[107480], | 99.00th=[170918], 99.50th=[212861], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 30, max= 345, per=24.93%, avg=168.76, stdev=69.44, samples=68 iops : min= 1, max= 21, avg= 9.79, stdev= 4.41, samples=68 write: IOPS=11, BW=183KiB/s (187kB/s)(6368KiB/34853msec); 0 zone resets clat (usec): min=1209, max=191481, avg=40184.14, stdev=37867.87 lat (usec): min=1211, max=191483, avg=40204.56, stdev=37872.39 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1942], 10.00th=[ 2835], 20.00th=[ 5669], | 30.00th=[ 10945], 40.00th=[ 19530], 50.00th=[ 28443], 60.00th=[ 40109], | 70.00th=[ 54264], 80.00th=[ 71828], 90.00th=[ 94897], 95.00th=[111674], | 99.00th=[149947], 99.50th=[189793], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 63, max= 382, per=25.61%, avg=182.34, stdev=80.49, samples=68 iops : min= 3, max= 23, avg=10.65, stdev= 5.09, samples=68 lat (usec) : 50=0.13%, 100=2.73%, 250=0.91%, 750=0.13% lat (msec) : 2=3.12%, 4=4.30%, 10=7.29%, 20=8.59%, 50=33.72% lat (msec) : 100=31.77%, 250=7.16%, 500=0.13% cpu : usr=0.06%, sys=5.05%, ctx=1766, 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=178993: Wed Aug 26 17:04:48 2026 read: IOPS=10, BW=162KiB/s (166kB/s)(5744KiB/35350msec) clat (usec): min=38, max=200549, avg=49095.49, stdev=32552.39 lat (usec): min=39, max=200551, avg=49096.95, stdev=32552.30 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 77], 10.00th=[ 15008], 20.00th=[ 25035], | 30.00th=[ 30802], 40.00th=[ 36963], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 60556], 80.00th=[ 71828], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[158335], 99.50th=[181404], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 22, max= 348, per=23.96%, avg=162.23, stdev=75.71, samples=69 iops : min= 1, max= 21, avg= 9.38, stdev= 4.78, samples=69 write: IOPS=11, BW=185KiB/s (190kB/s)(6544KiB/35350msec); 0 zone resets clat (usec): min=1478, max=219578, avg=42439.42, stdev=40686.51 lat (usec): min=1480, max=219580, avg=42443.48, stdev=40687.20 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1942], 10.00th=[ 2573], 20.00th=[ 5473], | 30.00th=[ 11863], 40.00th=[ 19792], 50.00th=[ 29492], 60.00th=[ 42730], | 70.00th=[ 57410], 80.00th=[ 77071], 90.00th=[ 98042], 95.00th=[122160], | 99.00th=[164627], 99.50th=[185598], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 62, max= 413, per=25.89%, avg=184.36, stdev=82.05, samples=69 iops : min= 3, max= 25, avg=10.78, stdev= 5.13, samples=69 lat (usec) : 50=0.13%, 100=3.12%, 250=0.26% lat (msec) : 2=2.99%, 4=5.47%, 10=6.90%, 20=8.85%, 50=34.11% lat (msec) : 100=30.08%, 250=8.07% cpu : usr=0.06%, sys=4.74%, ctx=1774, 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=178994: Wed Aug 26 17:04:48 2026 read: IOPS=11, BW=178KiB/s (183kB/s)(6256KiB/35063msec) clat (usec): min=46, max=224512, avg=50563.23, stdev=35085.23 lat (usec): min=46, max=224514, avg=50564.80, stdev=35085.05 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 81], 10.00th=[ 16909], 20.00th=[ 26084], | 30.00th=[ 33424], 40.00th=[ 38011], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 61080], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[177210], 99.50th=[221250], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 62, max= 314, per=26.42%, avg=178.87, stdev=64.94, samples=68 iops : min= 3, max= 19, avg=10.44, stdev= 4.15, samples=68 write: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35063msec); 0 zone resets clat (usec): min=1505, max=230887, avg=39783.30, stdev=38230.89 lat (usec): min=1505, max=230889, avg=39786.23, stdev=38231.44 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1991], 10.00th=[ 3097], 20.00th=[ 6718], | 30.00th=[ 11207], 40.00th=[ 20055], 50.00th=[ 28705], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[152044], 99.50th=[202376], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 31, max= 345, per=23.81%, avg=169.53, stdev=69.18, samples=68 iops : min= 1, max= 21, avg= 9.84, stdev= 4.35, samples=68 lat (usec) : 50=0.26%, 100=2.99%, 250=0.39%, 500=0.26% lat (msec) : 2=2.73%, 4=3.78%, 10=7.42%, 20=8.20%, 50=38.02% lat (msec) : 100=28.26%, 250=7.68% cpu : usr=0.07%, sys=4.82%, ctx=1782, 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=178995: Wed Aug 26 17:04:48 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(6032KiB/33518msec) clat (usec): min=43, max=172238, avg=46285.98, stdev=30456.40 lat (usec): min=43, max=172238, avg=46291.57, stdev=30452.07 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 68], 10.00th=[ 89], 20.00th=[ 22676], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 42206], 60.00th=[ 50070], | 70.00th=[ 58459], 80.00th=[ 70779], 90.00th=[ 85459], 95.00th=[101188], | 99.00th=[143655], 99.50th=[162530], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 30, max= 350, per=26.47%, avg=179.22, stdev=75.51, samples=65 iops : min= 1, max= 21, avg=10.45, stdev= 4.81, samples=65 write: IOPS=11, BW=187KiB/s (191kB/s)(6256KiB/33518msec); 0 zone resets clat (usec): min=1516, max=260988, avg=40202.53, stdev=39691.54 lat (usec): min=1518, max=261369, avg=40207.53, stdev=39695.70 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2474], 10.00th=[ 3752], 20.00th=[ 6718], | 30.00th=[ 10290], 40.00th=[ 18220], 50.00th=[ 28443], 60.00th=[ 40633], | 70.00th=[ 52167], 80.00th=[ 67634], 90.00th=[ 94897], 95.00th=[114820], | 99.00th=[187696], 99.50th=[196084], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 30, max= 444, per=26.34%, avg=187.52, stdev=84.26, samples=65 iops : min= 1, max= 27, avg=10.97, stdev= 5.25, samples=65 lat (usec) : 50=0.52%, 100=4.69%, 250=0.26%, 750=0.13% lat (msec) : 2=1.56%, 4=4.69%, 10=9.11%, 20=8.98%, 50=34.24% lat (msec) : 100=28.78%, 250=6.90%, 500=0.13% cpu : usr=0.06%, sys=4.87%, ctx=1649, 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=678KiB/s (694kB/s), 162KiB/s-180KiB/s (166kB/s-184kB/s), io=23.4MiB (24.5MB), run=33518-35350msec WRITE: bw=713KiB/s (730kB/s), 172KiB/s-187KiB/s (176kB/s-191kB/s), io=24.6MiB (25.8MB), run=33518-35350msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178996: Wed Aug 26 17:04:59 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(5920KiB/45551msec) clat (msec): min=5, max=273, avg=46.99, stdev=42.08 lat (msec): min=5, max=273, avg=46.99, stdev=42.08 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 66], 90.00th=[ 108], 95.00th=[ 138], | 99.00th=[ 211], 99.50th=[ 218], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 480, per=25.79%, avg=133.85, stdev=92.57, samples=87 iops : min= 1, max= 30, avg= 7.62, stdev= 5.82, samples=87 write: IOPS=8, BW=140KiB/s (143kB/s)(6368KiB/45551msec); 0 zone resets clat (msec): min=14, max=365, avg=70.49, stdev=47.68 lat (msec): min=14, max=365, avg=70.49, stdev=47.68 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 69], | 70.00th=[ 84], 80.00th=[ 106], 90.00th=[ 134], 95.00th=[ 159], | 99.00th=[ 243], 99.50th=[ 309], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 349, per=25.49%, avg=139.20, stdev=82.37, samples=90 iops : min= 1, max= 21, avg= 7.96, stdev= 5.20, samples=90 lat (msec) : 10=1.95%, 20=13.02%, 50=40.36%, 100=27.99%, 250=16.15% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.54%, ctx=1137, 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=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=178997: Wed Aug 26 17:04:59 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(5744KiB/46096msec) clat (msec): min=4, max=252, avg=47.66, stdev=41.03 lat (msec): min=4, max=252, avg=47.66, stdev=41.03 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 77], 90.00th=[ 104], 95.00th=[ 131], | 99.00th=[ 205], 99.50th=[ 218], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 21, max= 448, per=25.34%, avg=131.51, stdev=92.17, samples=84 iops : min= 1, max= 28, avg= 7.44, stdev= 5.84, samples=84 write: IOPS=8, BW=142KiB/s (145kB/s)(6544KiB/46096msec); 0 zone resets clat (msec): min=9, max=337, avg=70.00, stdev=50.19 lat (msec): min=9, max=337, avg=70.00, stdev=50.19 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 44], 50.00th=[ 56], 60.00th=[ 66], | 70.00th=[ 84], 80.00th=[ 108], 90.00th=[ 140], 95.00th=[ 171], | 99.00th=[ 220], 99.50th=[ 224], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 21, max= 384, per=25.55%, avg=139.48, stdev=88.10, samples=89 iops : min= 1, max= 24, avg= 7.93, stdev= 5.60, samples=89 lat (msec) : 10=2.21%, 20=13.80%, 50=39.45%, 100=27.47%, 250=16.67% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.54%, ctx=1131, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178998: Wed Aug 26 17:04:59 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(6256KiB/45746msec) clat (msec): min=6, max=243, avg=48.08, stdev=40.42 lat (msec): min=6, max=243, avg=48.08, stdev=40.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 107], 95.00th=[ 144], | 99.00th=[ 178], 99.50th=[ 205], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 30, max= 410, per=26.88%, avg=139.52, stdev=90.87, samples=88 iops : min= 1, max= 25, avg= 7.98, stdev= 5.72, samples=88 write: IOPS=8, BW=132KiB/s (135kB/s)(6032KiB/45746msec); 0 zone resets clat (msec): min=12, max=320, avg=70.64, stdev=47.96 lat (msec): min=12, max=320, avg=70.65, stdev=47.96 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 70], | 70.00th=[ 84], 80.00th=[ 104], 90.00th=[ 131], 95.00th=[ 182], | 99.00th=[ 222], 99.50th=[ 228], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 412, per=23.88%, avg=130.37, stdev=81.08, samples=89 iops : min= 1, max= 25, avg= 7.39, stdev= 5.10, samples=89 lat (msec) : 10=0.78%, 20=13.15%, 50=42.19%, 100=27.08%, 250=16.67% lat (msec) : 500=0.13% cpu : usr=0.04%, sys=1.57%, ctx=1129, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178999: Wed Aug 26 17:04:59 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(6032KiB/45733msec) clat (msec): min=5, max=257, avg=49.96, stdev=45.35 lat (msec): min=5, max=257, avg=49.96, stdev=45.35 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 69], 90.00th=[ 117], 95.00th=[ 159], | 99.00th=[ 215], 99.50th=[ 226], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 446, per=25.57%, avg=132.72, stdev=90.76, samples=88 iops : min= 1, max= 27, avg= 7.55, stdev= 5.73, samples=88 write: IOPS=8, BW=137KiB/s (140kB/s)(6256KiB/45733msec); 0 zone resets clat (msec): min=11, max=365, avg=67.69, stdev=47.54 lat (msec): min=11, max=365, avg=67.69, stdev=47.54 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 30], | 30.00th=[ 37], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 67], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 128], 95.00th=[ 161], | 99.00th=[ 213], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 568, per=25.28%, avg=138.02, stdev=93.64, samples=88 iops : min= 1, max= 35, avg= 7.89, stdev= 5.87, samples=88 lat (msec) : 10=1.82%, 20=11.98%, 50=43.36%, 100=25.39%, 250=17.06% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.58%, ctx=1128, 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=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=520KiB/s (532kB/s), 125KiB/s-137KiB/s (128kB/s-140kB/s), io=23.4MiB (24.5MB), run=45551-46096msec WRITE: bw=547KiB/s (560kB/s), 132KiB/s-142KiB/s (135kB/s-145kB/s), io=24.6MiB (25.8MB), run=45551-46096msec 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=179013: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=915KiB/s (937kB/s)(7168KiB/7835msec) clat (msec): min=178, max=469, avg=280.86, stdev=110.76 lat (msec): min=178, max=469, avg=280.86, stdev=110.76 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 182], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 241], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 372], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1828, max= 5485, per=100.00%, avg=2807.50, stdev=1786.57, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=0, BW=653KiB/s (669kB/s)(5120KiB/7835msec); 0 zone resets clat (msec): min=222, max=3905, avg=1083.34, stdev=1596.34 lat (msec): min=222, max=3905, avg=1083.44, stdev=1596.32 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 3910], 95.00th=[ 3910], | 99.00th=[ 3910], 99.50th=[ 3910], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 3910] bw ( KiB/s): min= 1812, max= 4079, per=72.68%, avg=2431.25, stdev=1099.65, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=5.25%, ctx=201, 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=179014: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=239KiB/s (245kB/s)(2048KiB/8571msec) clat (usec): min=567, max=405083, avg=202825.06, stdev=286035.93 lat (usec): min=568, max=405085, avg=202827.09, stdev=286037.28 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[404751], | 70.00th=[404751], 80.00th=[404751], 90.00th=[404751], 95.00th=[404751], | 99.00th=[404751], 99.50th=[404751], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 1812, max= 1828, per=76.18%, avg=1820.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1195KiB/s (1223kB/s)(10.0MiB/8571msec); 0 zone resets clat (msec): min=160, max=3460, avg=781.61, stdev=989.26 lat (msec): min=160, max=3461, avg=781.72, stdev=989.24 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 165], | 30.00th=[ 264], 40.00th=[ 338], 50.00th=[ 372], 60.00th=[ 422], | 70.00th=[ 676], 80.00th=[ 927], 90.00th=[ 1036], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 1928, max= 4055, per=93.69%, avg=3133.80, stdev=1064.44, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=41.67%, 750=8.33%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=6.53%, ctx=140, 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=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=179016: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=778KiB/s (797kB/s)(6144KiB/7896msec) clat (usec): min=668, max=3285.2k, avg=763841.69, stdev=1254625.03 lat (usec): min=669, max=3285.2k, avg=763842.87, stdev=1254624.93 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], | 20.00th=[ 2040], 30.00th=[ 2040], 40.00th=[ 346031], | 50.00th=[ 346031], 60.00th=[ 408945], 70.00th=[ 541066], | 80.00th=[ 541066], 90.00th=[3271558], 95.00th=[3271558], | 99.00th=[3271558], 99.50th=[3271558], 99.90th=[3271558], | 99.95th=[3271558], 99.99th=[3271558] bw ( KiB/s): min= 1812, max= 2039, per=82.29%, avg=1965.80, stdev=97.27, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=0, BW=778KiB/s (797kB/s)(6144KiB/7896msec); 0 zone resets clat (msec): min=303, max=867, avg=525.82, stdev=206.15 lat (msec): min=304, max=867, avg=526.03, stdev=206.16 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 535], | 70.00th=[ 642], 80.00th=[ 642], 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= 1503, max= 2011, per=54.40%, avg=1819.60, stdev=192.85, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 500=41.67%, 750=25.00%, 1000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=6.47%, ctx=581, 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=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=179018: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=646KiB/s (661kB/s)(5120KiB/7931msec) clat (usec): min=440, max=215238, avg=43459.33, stdev=96027.56 lat (usec): min=441, max=215240, avg=43460.27, stdev=96027.82 clat percentiles (usec): | 1.00th=[ 441], 5.00th=[ 441], 10.00th=[ 441], 20.00th=[ 441], | 30.00th=[ 449], 40.00th=[ 449], 50.00th=[ 537], 60.00th=[ 537], | 70.00th=[ 635], 80.00th=[ 635], 90.00th=[214959], 95.00th=[214959], | 99.00th=[214959], 99.50th=[214959], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=0, BW=904KiB/s (925kB/s)(7168KiB/7931msec); 0 zone resets clat (msec): min=210, max=3543, avg=1027.51, stdev=1160.15 lat (msec): min=210, max=3543, avg=1027.59, stdev=1160.15 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 405], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 550], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 1250], 90.00th=[ 3540], 95.00th=[ 3540], | 99.00th=[ 3540], 99.50th=[ 3540], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 1812, max= 4071, per=72.87%, avg=2437.50, stdev=1093.90, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 250=16.67%, 500=16.67%, 750=8.33%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=3.44%, ctx=102, 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=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=2389KiB/s (2447kB/s), 239KiB/s-915KiB/s (245kB/s-937kB/s), io=20.0MiB (20.0MB), run=7835-8571msec WRITE: bw=3345KiB/s (3426kB/s), 653KiB/s-1195KiB/s (669kB/s-1223kB/s), io=28.0MiB (29.4MB), run=7835-8571msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179015: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=840KiB/s (860kB/s)(7168KiB/8534msec) clat (msec): min=42, max=3045, avg=746.24, stdev=1044.40 lat (msec): min=42, max=3045, avg=746.24, stdev=1044.40 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 124], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 334], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 776], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 2011, max= 3555, per=100.00%, avg=2334.20, stdev=682.53, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=600KiB/s (614kB/s)(5120KiB/8534msec); 0 zone resets clat (msec): min=120, max=857, avg=580.15, stdev=308.95 lat (msec): min=120, max=858, avg=580.27, stdev=308.96 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 122], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1759, max= 2031, per=58.38%, avg=1904.25, stdev=138.97, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 50=8.33%, 250=16.67%, 500=25.00%, 750=8.33%, 1000=33.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=1.50%, ctx=73, 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=179017: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=233KiB/s (239kB/s)(2048KiB/8788msec) clat (msec): min=542, max=611, avg=576.69, stdev=48.95 lat (msec): min=542, max=611, avg=576.69, stdev=48.95 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1812, max= 2035, per=82.55%, avg=1923.50, stdev=157.68, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1165KiB/s (1193kB/s)(10.0MiB/8788msec); 0 zone resets clat (msec): min=113, max=3492, avg=751.66, stdev=1017.92 lat (msec): min=113, max=3492, avg=752.30, stdev=1017.79 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 140], | 30.00th=[ 146], 40.00th=[ 182], 50.00th=[ 468], 60.00th=[ 506], | 70.00th=[ 542], 80.00th=[ 776], 90.00th=[ 1150], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 1759, max= 4063, per=82.32%, avg=2685.40, stdev=1047.00, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=33.33%, 500=8.33%, 750=33.33%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.44%, ctx=84, majf=1, 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=179019: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=727KiB/s (745kB/s)(6144KiB/8446msec) clat (msec): min=132, max=937, avg=429.84, stdev=329.95 lat (msec): min=132, max=937, avg=429.85, stdev=329.94 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 275], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1759, max= 2031, per=80.64%, avg=1878.80, stdev=133.13, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=0, BW=727KiB/s (745kB/s)(6144KiB/8446msec); 0 zone resets clat (msec): min=88, max=3991, avg=900.70, stdev=1524.22 lat (msec): min=88, max=3991, avg=900.81, stdev=1524.21 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 456], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 3977], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 1777, max= 4063, per=71.72%, avg=2339.60, stdev=970.28, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.05%, sys=2.37%, ctx=110, 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=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=179020: Wed Aug 26 17:05:22 2026 read: IOPS=0, BW=619KiB/s (634kB/s)(5120KiB/8276msec) clat (msec): min=67, max=493, avg=323.61, stdev=156.12 lat (msec): min=67, max=493, avg=323.61, stdev=156.12 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1777, max= 3518, per=100.00%, avg=2440.67, stdev=941.33, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=866KiB/s (887kB/s)(7168KiB/8276msec); 0 zone resets clat (msec): min=189, max=3574, avg=903.28, stdev=1205.64 lat (msec): min=189, max=3574, avg=904.14, stdev=1205.64 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 510], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 969], 90.00th=[ 3574], 95.00th=[ 3574], | 99.00th=[ 3574], 99.50th=[ 3574], 99.90th=[ 3574], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 1777, max= 2039, per=60.56%, avg=1975.40, stdev=111.57, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=8.33%, 500=50.00%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=2.49%, ctx=120, 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=2330KiB/s (2386kB/s), 233KiB/s-840KiB/s (239kB/s-860kB/s), io=20.0MiB (20.0MB), run=8276-8788msec WRITE: bw=3263KiB/s (3341kB/s), 600KiB/s-1165KiB/s (614kB/s-1193kB/s), io=28.0MiB (29.4MB), run=8276-8788msec 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=179033: Wed Aug 26 17:05:38 2026 read: IOPS=1, BW=4175KiB/s (4276kB/s)(12.0MiB/2943msec) clat (msec): min=426, max=1925, avg=980.68, stdev=822.64 lat (msec): min=426, max=1925, avg=980.68, stdev=822.64 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1921], 80.00th=[ 1921], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7984, max= 8078, per=100.00%, avg=8031.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.31%, ctx=43, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179034: Wed Aug 26 17:05:38 2026 read: IOPS=0, BW=1418KiB/s (1452kB/s)(4096KiB/2888msec) clat (nsec): min=1270.6M, max=1270.6M, avg=1270565071.00, stdev= 0.00 lat (nsec): min=1270.6M, max=1270.6M, avg=1270566676.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1267], 5.00th=[ 1267], 10.00th=[ 1267], 20.00th=[ 1267], | 30.00th=[ 1267], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7627, max= 7627, per=100.00%, avg=7627.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2837KiB/s (2905kB/s)(8192KiB/2888msec); 0 zone resets clat (msec): min=303, max=1310, avg=806.83, stdev=711.95 lat (msec): min=305, max=1310, avg=807.94, stdev=711.20 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8078, max= 8078, per=78.94%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.78%, ctx=46, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179035: Wed Aug 26 17:05:38 2026 write: IOPS=0, BW=3838KiB/s (3930kB/s)(12.0MiB/3202msec); 0 zone resets clat (msec): min=217, max=2501, avg=1065.20, stdev=1250.21 lat (msec): min=218, max=2502, avg=1066.20, stdev=1250.40 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 8078, max= 8110, per=79.10%, avg=8094.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=2.53%, ctx=42, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179036: Wed Aug 26 17:05:38 2026 write: IOPS=0, BW=4095KiB/s (4193kB/s)(12.0MiB/3001msec); 0 zone resets clat (msec): min=551, max=1437, avg=980.97, stdev=443.93 lat (msec): min=551, max=1438, avg=981.44, stdev=443.94 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 5979, max= 7937, per=68.00%, avg=6958.00, stdev=1384.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.93%, ctx=60, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5567KiB/s (5701kB/s), 1418KiB/s-4175KiB/s (1452kB/s-4276kB/s), io=16.0MiB (16.8MB), run=2888-2943msec WRITE: bw=9.99MiB/s (10.5MB/s), 2837KiB/s-4095KiB/s (2905kB/s-4193kB/s), io=32.0MiB (33.6MB), run=2888-3202msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179027: Wed Aug 26 17:05:38 2026 read: IOPS=1, BW=4381KiB/s (4486kB/s)(12.0MiB/2805msec) clat (msec): min=731, max=1076, avg=891.53, stdev=173.47 lat (msec): min=731, max=1076, avg=891.53, stdev=173.47 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 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=33.33%, 2000=33.33% cpu : usr=0.07%, sys=13.12%, ctx=382, 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=179028: Wed Aug 26 17:05:38 2026 read: IOPS=0, BW=1576KiB/s (1614kB/s)(4096KiB/2599msec) clat (nsec): min=1022.4M, max=1022.4M, avg=1022420834.00, stdev= 0.00 lat (nsec): min=1022.4M, max=1022.4M, avg=1022422626.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] 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=3152KiB/s (3228kB/s)(8192KiB/2599msec); 0 zone resets clat (msec): min=513, max=1060, avg=786.85, stdev=386.30 lat (msec): min=514, max=1061, avg=787.96, stdev=387.06 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 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= 8175, max= 8175, per=96.28%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.08%, sys=4.27%, ctx=129, 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=179029: Wed Aug 26 17:05:38 2026 write: IOPS=0, BW=3184KiB/s (3261kB/s)(12.0MiB/3859msec); 0 zone resets clat (msec): min=142, max=3186, avg=1280.39, stdev=1660.79 lat (msec): min=143, max=3188, avg=1281.69, stdev=1661.26 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 3171], 80.00th=[ 3171], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 8175, max= 8192, per=96.38%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.88%, ctx=75, 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=179031: Wed Aug 26 17:05:38 2026 write: IOPS=0, BW=3560KiB/s (3645kB/s)(12.0MiB/3452msec); 0 zone resets clat (msec): min=564, max=2176, avg=1128.59, stdev=908.75 lat (msec): min=564, max=2178, avg=1130.17, stdev=908.70 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 8175, max= 8192, per=96.38%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.26%, ctx=51, 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=5841KiB/s (5981kB/s), 1576KiB/s-4381KiB/s (1614kB/s-4486kB/s), io=16.0MiB (16.8MB), run=2599-2805msec WRITE: bw=8491KiB/s (8695kB/s), 3152KiB/s-3560KiB/s (3228kB/s-3645kB/s), io=32.0MiB (33.6MB), run=2599-3859msec