== sanity test 398b: DIO and buffer IO race ============== 12:35:13 (1787848513) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.67432 s, 7.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179582: Thu Aug 27 12:37:44 2026 read: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5992KiB/133707msec) clat (usec): min=32, max=297920, avg=48103.05, stdev=34216.15 lat (usec): min=32, max=297921, avg=48105.66, stdev=34216.92 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 8586], 10.00th=[ 16450], 20.00th=[ 23462], | 30.00th=[ 28705], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[170918], 99.50th=[204473], 99.90th=[295699], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=24.93%, avg=44.62, stdev=18.87, samples=261 iops : min= 1, max= 25, avg=10.50, stdev= 4.75, samples=261 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(6296KiB/133707msec); 0 zone resets clat (usec): min=925, max=698791, avg=38914.79, stdev=43485.37 lat (usec): min=927, max=698792, avg=38916.78, stdev=43485.64 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1237], 10.00th=[ 1565], 20.00th=[ 4228], | 30.00th=[ 9241], 40.00th=[ 18482], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 47973], 80.00th=[ 65799], 90.00th=[ 95945], 95.00th=[117965], | 99.00th=[181404], 99.50th=[206570], 99.90th=[263193], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 143, per=24.83%, avg=46.67, stdev=22.32, samples=262 iops : min= 1, max= 35, avg=11.01, stdev= 5.62, samples=262 lat (usec) : 50=0.39%, 100=1.76%, 250=0.07%, 750=0.03%, 1000=0.10% lat (msec) : 2=6.32%, 4=3.58%, 10=6.32%, 20=9.51%, 50=39.10% lat (msec) : 100=24.93%, 250=7.71%, 500=0.16%, 750=0.03% cpu : usr=0.09%, sys=4.83%, 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=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=179583: Thu Aug 27 12:37:44 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5940KiB/130587msec) clat (usec): min=45, max=588454, avg=48989.75, stdev=37147.83 lat (usec): min=46, max=588456, avg=49008.16, stdev=37144.46 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 9110], 10.00th=[ 16909], 20.00th=[ 24249], | 30.00th=[ 30540], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 47973], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 85459], 95.00th=[107480], | 99.00th=[179307], 99.50th=[217056], 99.90th=[367002], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 100, per=25.32%, avg=45.32, stdev=17.41, samples=255 iops : min= 1, max= 25, avg=10.67, stdev= 4.40, samples=255 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6348KiB/130587msec); 0 zone resets clat (usec): min=998, max=742144, avg=36208.43, stdev=44726.50 lat (usec): min=999, max=742145, avg=36210.85, stdev=44726.53 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1336], 20.00th=[ 3064], | 30.00th=[ 6063], 40.00th=[ 13304], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 60031], 90.00th=[ 88605], 95.00th=[116917], | 99.00th=[191890], 99.50th=[212861], 99.90th=[358613], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 119, per=25.58%, avg=48.09, stdev=21.52, samples=256 iops : min= 1, max= 29, avg=11.37, stdev= 5.40, samples=256 lat (usec) : 50=0.16%, 100=1.73%, 250=0.20%, 750=0.07%, 1000=0.07% lat (msec) : 2=8.01%, 4=4.30%, 10=6.97%, 20=8.82%, 50=37.43% lat (msec) : 100=25.46%, 250=6.51%, 500=0.23%, 750=0.07% cpu : usr=0.08%, sys=5.02%, ctx=6238, 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=179584: Thu Aug 27 12:37:44 2026 read: IOPS=11, BW=45.0KiB/s (47.1kB/s)(6028KiB/131123msec) clat (usec): min=45, max=290050, avg=47421.14, stdev=31872.91 lat (usec): min=46, max=290052, avg=47435.32, stdev=31875.32 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11731], 10.00th=[ 17433], 20.00th=[ 23200], | 30.00th=[ 29230], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 56361], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[158335], 99.50th=[181404], 99.90th=[258999], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 112, per=25.67%, avg=45.94, stdev=19.19, samples=255 iops : min= 1, max= 28, avg=10.82, stdev= 4.81, samples=255 write: IOPS=11, BW=47.7KiB/s (48.9kB/s)(6260KiB/131123msec); 0 zone resets clat (usec): min=844, max=709562, avg=37742.62, stdev=43965.77 lat (usec): min=845, max=709565, avg=37745.72, stdev=43965.56 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1434], 20.00th=[ 3687], | 30.00th=[ 7570], 40.00th=[ 14877], 50.00th=[ 26084], 60.00th=[ 34866], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 92799], 95.00th=[121111], | 99.00th=[175113], 99.50th=[196084], 99.90th=[400557], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 119, per=25.35%, avg=47.65, stdev=22.10, samples=255 iops : min= 1, max= 29, avg=11.25, stdev= 5.56, samples=255 lat (usec) : 50=0.16%, 100=1.63%, 250=0.07%, 500=0.07%, 1000=0.16% lat (msec) : 2=6.67%, 4=4.00%, 10=7.06%, 20=9.51%, 50=38.18% lat (msec) : 100=25.29%, 250=7.06%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=4.63%, ctx=6255, 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=179585: Thu Aug 27 12:37:44 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6052KiB/131220msec) clat (usec): min=30, max=308168, avg=47585.79, stdev=33052.93 lat (usec): min=30, max=308169, avg=47588.84, stdev=33051.71 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 7767], 10.00th=[ 16909], 20.00th=[ 22676], | 30.00th=[ 28967], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 47449], | 70.00th=[ 56361], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[152044], 99.50th=[223347], 99.90th=[278922], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 95, per=25.57%, avg=45.78, stdev=17.54, samples=258 iops : min= 1, max= 23, avg=10.79, stdev= 4.43, samples=258 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(6236KiB/131220msec); 0 zone resets clat (usec): min=768, max=661773, avg=37630.37, stdev=43524.40 lat (usec): min=769, max=661776, avg=37633.46, stdev=43524.40 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1434], 20.00th=[ 3458], | 30.00th=[ 7439], 40.00th=[ 16188], 50.00th=[ 25822], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[183501], 99.50th=[221250], 99.90th=[367002], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 7, max= 119, per=25.20%, avg=47.37, stdev=21.09, samples=257 iops : min= 1, max= 29, avg=11.18, stdev= 5.31, samples=257 lat (usec) : 50=0.23%, 100=1.73%, 250=0.20%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=7.13%, 4=3.84%, 10=6.58%, 20=9.47%, 50=37.96% lat (msec) : 100=26.20%, 250=6.22%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=4.70%, ctx=6219, 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=180KiB/s (184kB/s), 44.8KiB/s-46.1KiB/s (45.9kB/s-47.2kB/s), io=23.4MiB (24.6MB), run=130587-133707msec WRITE: bw=188KiB/s (193kB/s), 47.1KiB/s-48.6KiB/s (48.2kB/s-49.8kB/s), io=24.6MiB (25.7MB), run=130587-133707msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179587: Thu Aug 27 12:38:24 2026 read: IOPS=8, BW=34.9KiB/s (35.7kB/s)(5992KiB/171649msec) clat (msec): min=4, max=525, avg=43.77, stdev=43.74 lat (msec): min=4, max=525, avg=43.77, stdev=43.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 97], 95.00th=[ 131], | 99.00th=[ 211], 99.50th=[ 239], 99.90th=[ 347], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 128, per=25.96%, avg=35.82, stdev=25.15, samples=324 iops : min= 1, max= 32, avg= 8.29, stdev= 6.32, samples=324 write: IOPS=9, BW=36.7KiB/s (37.6kB/s)(6296KiB/171649msec); 0 zone resets clat (msec): min=10, max=401, avg=67.13, stdev=50.02 lat (msec): min=10, max=401, avg=67.14, stdev=50.02 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 130], 95.00th=[ 165], | 99.00th=[ 253], 99.50th=[ 292], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 134, per=25.33%, avg=36.73, stdev=24.24, samples=332 iops : min= 1, max= 33, avg= 8.53, stdev= 6.09, samples=332 lat (msec) : 10=2.38%, 20=15.30%, 50=44.63%, 100=22.59%, 250=14.39% lat (msec) : 500=0.68%, 750=0.03% cpu : usr=0.06%, sys=1.66%, ctx=4698, 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=179588: Thu Aug 27 12:38:24 2026 read: IOPS=8, BW=34.6KiB/s (35.4kB/s)(5940KiB/171917msec) clat (msec): min=5, max=855, avg=43.56, stdev=46.69 lat (msec): min=5, max=855, avg=43.56, stdev=46.69 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 64], 90.00th=[ 99], 95.00th=[ 131], | 99.00th=[ 215], 99.50th=[ 251], 99.90th=[ 351], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 134, per=25.71%, avg=35.49, stdev=25.97, samples=325 iops : min= 1, max= 33, avg= 8.22, stdev= 6.53, samples=325 write: IOPS=9, BW=36.9KiB/s (37.8kB/s)(6348KiB/171917msec); 0 zone resets clat (msec): min=11, max=469, avg=67.41, stdev=50.08 lat (msec): min=11, max=469, avg=67.41, stdev=50.08 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 134], 95.00th=[ 163], | 99.00th=[ 228], 99.50th=[ 317], 99.90th=[ 414], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 7, max= 118, per=25.47%, avg=36.93, stdev=24.31, samples=334 iops : min= 1, max= 29, avg= 8.58, stdev= 6.11, samples=334 lat (msec) : 10=2.51%, 20=16.02%, 50=43.55%, 100=22.69%, 250=14.58% lat (msec) : 500=0.62%, 1000=0.03% cpu : usr=0.06%, sys=1.66%, ctx=4757, 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=179589: Thu Aug 27 12:38:24 2026 read: IOPS=8, BW=34.8KiB/s (35.7kB/s)(6028KiB/173040msec) clat (msec): min=5, max=360, avg=45.24, stdev=42.73 lat (msec): min=5, max=360, avg=45.24, stdev=42.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 67], 90.00th=[ 104], 95.00th=[ 136], | 99.00th=[ 203], 99.50th=[ 232], 99.90th=[ 342], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 143, per=25.91%, avg=35.76, stdev=24.74, samples=327 iops : min= 1, max= 35, avg= 8.28, stdev= 6.23, samples=327 write: IOPS=9, BW=36.2KiB/s (37.0kB/s)(6260KiB/173040msec); 0 zone resets clat (msec): min=11, max=752, avg=66.69, stdev=55.72 lat (msec): min=11, max=752, avg=66.69, stdev=55.72 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 72], 80.00th=[ 97], 90.00th=[ 136], 95.00th=[ 174], | 99.00th=[ 262], 99.50th=[ 305], 99.90th=[ 489], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 142, per=24.79%, avg=35.95, stdev=24.73, samples=337 iops : min= 1, max= 35, avg= 8.33, stdev= 6.21, samples=337 lat (msec) : 10=2.02%, 20=14.52%, 50=45.51%, 100=23.27%, 250=13.96% lat (msec) : 500=0.68%, 1000=0.03% cpu : usr=0.07%, sys=1.66%, ctx=4762, 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=179590: Thu Aug 27 12:38:24 2026 read: IOPS=8, BW=34.0KiB/s (35.8kB/s)(6052KiB/173150msec) clat (msec): min=4, max=335, avg=44.55, stdev=43.93 lat (msec): min=4, max=335, avg=44.56, stdev=43.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 68], 90.00th=[ 105], 95.00th=[ 142], | 99.00th=[ 209], 99.50th=[ 230], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 125, per=25.80%, avg=35.60, stdev=26.23, samples=329 iops : min= 1, max= 31, avg= 8.24, stdev= 6.60, samples=329 write: IOPS=9, BW=36.0KiB/s (36.9kB/s)(6236KiB/173150msec); 0 zone resets clat (msec): min=10, max=705, avg=67.50, stdev=54.28 lat (msec): min=10, max=705, avg=67.51, stdev=54.28 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 49], 60.00th=[ 59], | 70.00th=[ 77], 80.00th=[ 101], 90.00th=[ 140], 95.00th=[ 167], | 99.00th=[ 262], 99.50th=[ 288], 99.90th=[ 485], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 128, per=24.68%, avg=35.79, stdev=24.62, samples=337 iops : min= 1, max= 32, avg= 8.29, stdev= 6.18, samples=337 lat (msec) : 10=2.54%, 20=16.08%, 50=43.49%, 100=22.56%, 250=14.58% lat (msec) : 500=0.72%, 750=0.03% cpu : usr=0.07%, sys=1.57%, ctx=4662, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=139KiB/s (142kB/s), 34.6KiB/s-34.0KiB/s (35.4kB/s-35.8kB/s), io=23.4MiB (24.6MB), run=171649-173150msec WRITE: bw=145KiB/s (149kB/s), 36.0KiB/s-36.9KiB/s (36.9kB/s-37.8kB/s), io=24.6MiB (25.7MB), run=171649-173150msec 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=179638: Thu Aug 27 12:39:13 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5920KiB/35605msec) clat (usec): min=42, max=218551, avg=50588.97, stdev=31865.54 lat (usec): min=42, max=218553, avg=50591.95, stdev=31863.21 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 9896], 20.00th=[ 27395], | 30.00th=[ 34866], 40.00th=[ 40633], 50.00th=[ 46924], 60.00th=[ 55837], | 70.00th=[ 61604], 80.00th=[ 71828], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[154141], 99.50th=[170918], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 64, max= 375, per=24.39%, avg=163.88, stdev=62.88, samples=69 iops : min= 4, max= 23, avg= 9.52, stdev= 4.03, samples=69 write: IOPS=11, BW=179KiB/s (183kB/s)(6368KiB/35605msec); 0 zone resets clat (usec): min=1410, max=222673, avg=42151.08, stdev=40443.29 lat (usec): min=1412, max=222675, avg=42153.90, stdev=40443.46 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1909], 10.00th=[ 3261], 20.00th=[ 6587], | 30.00th=[ 10814], 40.00th=[ 20317], 50.00th=[ 31851], 60.00th=[ 39584], | 70.00th=[ 56361], 80.00th=[ 74974], 90.00th=[ 99091], 95.00th=[120062], | 99.00th=[175113], 99.50th=[210764], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 32, max= 340, per=25.21%, avg=178.22, stdev=71.70, samples=69 iops : min= 2, max= 21, avg=10.43, stdev= 4.52, samples=69 lat (usec) : 50=0.52%, 100=3.91%, 250=0.13% lat (msec) : 2=3.65%, 4=2.86%, 10=8.20%, 20=8.46%, 50=32.42% lat (msec) : 100=31.77%, 250=8.07% cpu : usr=0.08%, sys=4.94%, ctx=1627, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179639: Thu Aug 27 12:39:13 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34682msec) clat (usec): min=40, max=195077, avg=49522.06, stdev=32039.28 lat (usec): min=40, max=195079, avg=49532.59, stdev=32041.30 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 102], 20.00th=[ 24511], | 30.00th=[ 32637], 40.00th=[ 39584], 50.00th=[ 45351], 60.00th=[ 54789], | 70.00th=[ 62129], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[107480], | 99.00th=[141558], 99.50th=[175113], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 22, max= 406, per=25.04%, avg=168.29, stdev=79.10, samples=66 iops : min= 1, max= 25, avg= 9.79, stdev= 5.01, samples=66 write: IOPS=11, BW=189KiB/s (193kB/s)(6544KiB/34682msec); 0 zone resets clat (usec): min=1363, max=322221, avg=40247.59, stdev=42755.85 lat (usec): min=1365, max=322222, avg=40285.93, stdev=42731.61 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1893], 10.00th=[ 3064], 20.00th=[ 6456], | 30.00th=[ 10945], 40.00th=[ 17695], 50.00th=[ 27657], 60.00th=[ 35390], | 70.00th=[ 48497], 80.00th=[ 65274], 90.00th=[ 96994], 95.00th=[130548], | 99.00th=[189793], 99.50th=[196084], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 31, max= 413, per=26.72%, avg=188.93, stdev=89.58, samples=67 iops : min= 1, max= 25, avg=11.10, stdev= 5.65, samples=67 lat (usec) : 50=0.39%, 100=4.04%, 250=0.39% lat (msec) : 2=3.39%, 4=3.26%, 10=8.33%, 20=10.16%, 50=33.72% lat (msec) : 100=27.86%, 250=8.33%, 500=0.13% cpu : usr=0.09%, sys=5.25%, ctx=1589, 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=179642: Thu Aug 27 12:39:13 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(6256KiB/35328msec) clat (usec): min=35, max=236919, avg=50391.54, stdev=35114.05 lat (usec): min=35, max=236921, avg=50393.27, stdev=35114.07 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 147], 20.00th=[ 25297], | 30.00th=[ 31851], 40.00th=[ 39060], 50.00th=[ 44827], 60.00th=[ 53216], | 70.00th=[ 60031], 80.00th=[ 72877], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[196084], 99.50th=[208667], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 22, max= 378, per=26.55%, avg=178.45, stdev=67.19, samples=69 iops : min= 1, max= 23, avg=10.43, stdev= 4.24, samples=69 write: IOPS=10, BW=171KiB/s (175kB/s)(6032KiB/35328msec); 0 zone resets clat (usec): min=1454, max=211726, avg=40298.48, stdev=36699.75 lat (usec): min=1457, max=211728, avg=40304.63, stdev=36702.61 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1909], 10.00th=[ 3032], 20.00th=[ 7570], | 30.00th=[ 14746], 40.00th=[ 22152], 50.00th=[ 31589], 60.00th=[ 40109], | 70.00th=[ 51119], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[122160], | 99.00th=[149947], 99.50th=[164627], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 415, per=24.02%, avg=169.84, stdev=78.95, samples=69 iops : min= 1, max= 25, avg= 9.90, stdev= 4.98, samples=69 lat (usec) : 50=0.91%, 100=3.91%, 250=0.39%, 1000=0.13% lat (msec) : 2=3.12%, 4=3.12%, 10=5.86%, 20=8.72%, 50=36.33% lat (msec) : 100=29.82%, 250=7.68% cpu : usr=0.08%, sys=5.31%, ctx=1696, 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=179644: Thu Aug 27 12:39:13 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34640msec) clat (usec): min=40, max=218222, avg=48800.15, stdev=34698.58 lat (usec): min=40, max=218224, avg=48801.59, stdev=34698.65 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 137], 20.00th=[ 21627], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 43254], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 73925], 90.00th=[ 94897], 95.00th=[109577], | 99.00th=[166724], 99.50th=[198181], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 22, max= 434, per=25.93%, avg=174.22, stdev=88.01, samples=67 iops : min= 1, max= 27, avg=10.16, stdev= 5.62, samples=67 write: IOPS=11, BW=181KiB/s (185kB/s)(6256KiB/34640msec); 0 zone resets clat (usec): min=1376, max=226783, avg=40738.64, stdev=42341.16 lat (usec): min=1378, max=226786, avg=40742.24, stdev=42340.29 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1958], 10.00th=[ 2638], 20.00th=[ 5407], | 30.00th=[ 8979], 40.00th=[ 17695], 50.00th=[ 28705], 60.00th=[ 38011], | 70.00th=[ 50070], 80.00th=[ 71828], 90.00th=[101188], 95.00th=[133694], | 99.00th=[181404], 99.50th=[187696], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 62, max= 531, per=25.71%, avg=181.78, stdev=91.05, samples=67 iops : min= 3, max= 33, avg=10.64, stdev= 5.78, samples=67 lat (usec) : 50=0.39%, 100=4.30%, 250=0.52%, 500=0.13% lat (msec) : 2=2.99%, 4=5.21%, 10=8.07%, 20=7.29%, 50=35.03% lat (msec) : 100=26.82%, 250=9.24% cpu : usr=0.07%, sys=5.35%, ctx=1620, 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=673KiB/s (689kB/s), 166KiB/s-177KiB/s (170kB/s-181kB/s), io=23.4MiB (24.5MB), run=34640-35605msec WRITE: bw=708KiB/s (725kB/s), 171KiB/s-189KiB/s (175kB/s-193kB/s), io=24.6MiB (25.8MB), run=34640-35605msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179640: Thu Aug 27 12:39:24 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(5920KiB/46495msec) clat (msec): min=6, max=304, avg=50.97, stdev=45.03 lat (msec): min=6, max=304, avg=50.97, stdev=45.03 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 72], 90.00th=[ 114], 95.00th=[ 155], | 99.00th=[ 188], 99.50th=[ 243], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 447, per=24.55%, avg=126.17, stdev=86.38, samples=90 iops : min= 1, max= 27, avg= 7.06, stdev= 5.42, samples=90 write: IOPS=8, BW=137KiB/s (140kB/s)(6368KiB/46495msec); 0 zone resets clat (msec): min=10, max=262, avg=68.61, stdev=47.25 lat (msec): min=10, max=262, avg=68.61, stdev=47.25 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 43], 50.00th=[ 53], 60.00th=[ 64], | 70.00th=[ 83], 80.00th=[ 104], 90.00th=[ 138], 95.00th=[ 167], | 99.00th=[ 209], 99.50th=[ 257], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 22, max= 447, per=25.39%, avg=137.37, stdev=87.42, samples=90 iops : min= 1, max= 27, avg= 7.77, stdev= 5.49, samples=90 lat (msec) : 10=0.91%, 20=13.15%, 50=42.84%, 100=25.26%, 250=17.45% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.54%, ctx=1154, 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=179641: Thu Aug 27 12:39:24 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(5744KiB/46570msec) clat (msec): min=6, max=387, avg=48.79, stdev=46.92 lat (msec): min=6, max=387, avg=48.79, stdev=46.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 34], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 69], 90.00th=[ 101], 95.00th=[ 146], | 99.00th=[ 234], 99.50th=[ 264], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 22, max= 415, per=24.69%, avg=126.90, stdev=89.89, samples=87 iops : min= 1, max= 25, avg= 7.10, stdev= 5.62, samples=87 write: IOPS=8, BW=141KiB/s (144kB/s)(6544KiB/46570msec); 0 zone resets clat (msec): min=12, max=332, avg=70.29, stdev=49.23 lat (msec): min=12, max=332, avg=70.30, stdev=49.23 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 38], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 69], | 70.00th=[ 87], 80.00th=[ 107], 90.00th=[ 140], 95.00th=[ 161], | 99.00th=[ 236], 99.50th=[ 259], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 30, max= 447, per=25.61%, avg=138.57, stdev=89.68, samples=90 iops : min= 1, max= 27, avg= 7.84, stdev= 5.63, samples=90 lat (msec) : 10=1.69%, 20=14.19%, 50=40.10%, 100=26.82%, 250=16.54% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.54%, ctx=1120, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179643: Thu Aug 27 12:39:24 2026 read: IOPS=8, BW=134KiB/s (138kB/s)(6256KiB/46561msec) clat (msec): min=7, max=392, avg=50.14, stdev=47.89 lat (msec): min=7, max=392, avg=50.15, stdev=47.89 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 73], 90.00th=[ 108], 95.00th=[ 155], | 99.00th=[ 220], 99.50th=[ 313], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 31, max= 447, per=26.15%, avg=134.42, stdev=96.59, samples=90 iops : min= 1, max= 27, avg= 7.57, stdev= 6.06, samples=90 write: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46561msec); 0 zone resets clat (msec): min=12, max=266, avg=70.76, stdev=47.90 lat (msec): min=12, max=266, avg=70.77, stdev=47.90 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 25], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 57], 60.00th=[ 67], | 70.00th=[ 84], 80.00th=[ 109], 90.00th=[ 144], 95.00th=[ 174], | 99.00th=[ 215], 99.50th=[ 234], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 31, max= 479, per=23.59%, avg=127.63, stdev=81.44, samples=90 iops : min= 1, max= 29, avg= 7.16, stdev= 5.09, samples=90 lat (msec) : 10=1.04%, 20=13.93%, 50=41.28%, 100=26.04%, 250=17.32% lat (msec) : 500=0.39% cpu : usr=0.08%, sys=1.76%, ctx=1214, 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=179645: Thu Aug 27 12:39:24 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(6032KiB/46083msec) clat (msec): min=7, max=206, avg=47.22, stdev=39.79 lat (msec): min=7, max=206, avg=47.22, stdev=39.79 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 68], 90.00th=[ 109], 95.00th=[ 138], | 99.00th=[ 184], 99.50th=[ 192], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 31, max= 438, per=25.38%, avg=130.45, stdev=92.98, samples=89 iops : min= 1, max= 27, avg= 7.34, stdev= 5.85, samples=89 write: IOPS=8, BW=136KiB/s (139kB/s)(6256KiB/46083msec); 0 zone resets clat (msec): min=14, max=331, avg=71.99, stdev=53.77 lat (msec): min=14, max=331, avg=72.00, stdev=53.78 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 38], 40.00th=[ 47], 50.00th=[ 54], 60.00th=[ 66], | 70.00th=[ 87], 80.00th=[ 108], 90.00th=[ 146], 95.00th=[ 180], | 99.00th=[ 288], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 447, per=24.69%, avg=133.59, stdev=86.30, samples=90 iops : min= 1, max= 27, avg= 7.52, stdev= 5.41, samples=90 lat (msec) : 10=1.17%, 20=12.50%, 50=43.62%, 100=25.13%, 250=16.80% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.69%, ctx=1189, 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=514KiB/s (527kB/s), 123KiB/s-134KiB/s (126kB/s-138kB/s), io=23.4MiB (24.5MB), run=46083-46570msec WRITE: bw=541KiB/s (554kB/s), 130KiB/s-141KiB/s (133kB/s-144kB/s), io=24.6MiB (25.8MB), run=46083-46570msec 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=179662: Thu Aug 27 12:39:42 2026 read: IOPS=1, BW=1273KiB/s (1304kB/s)(7168KiB/5631msec) clat (usec): min=1488, max=388849, avg=186276.70, stdev=113337.31 lat (usec): min=1489, max=388850, avg=186278.28, stdev=113337.27 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1483], 10.00th=[ 1483], 20.00th=[145753], | 30.00th=[187696], 40.00th=[187696], 50.00th=[189793], 60.00th=[189793], | 70.00th=[189793], 80.00th=[200279], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 2011, max= 4096, per=98.91%, avg=2938.50, stdev=1069.16, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 write: IOPS=0, BW=909KiB/s (931kB/s)(5120KiB/5631msec); 0 zone resets clat (msec): min=270, max=1976, avg=805.20, stdev=682.97 lat (msec): min=270, max=1976, avg=805.50, stdev=683.05 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 1932, max= 2048, per=48.24%, avg=2006.50, stdev=53.59, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 2=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=7.37%, ctx=167, 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=179663: Thu Aug 27 12:39:42 2026 read: IOPS=0, BW=297KiB/s (304kB/s)(2048KiB/6893msec) clat (msec): min=444, max=2266, avg=1355.58, stdev=1288.40 lat (msec): min=444, max=2266, avg=1355.58, stdev=1288.40 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 2265], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 1924, max= 2043, per=66.76%, avg=1983.50, stdev=84.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1486KiB/s (1521kB/s)(10.0MiB/6893msec); 0 zone resets clat (msec): min=160, max=943, avg=406.46, stdev=232.64 lat (msec): min=160, max=944, avg=406.76, stdev=232.58 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 224], 40.00th=[ 271], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 567], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1973, max= 3683, per=54.88%, avg=2282.33, stdev=686.76, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=10.17%, ctx=680, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179664: Thu Aug 27 12:39:42 2026 read: IOPS=1, BW=1094KiB/s (1120kB/s)(6144KiB/5615msec) clat (usec): min=445, max=356752, avg=162809.90, stdev=142850.74 lat (usec): min=445, max=356753, avg=162811.13, stdev=142850.78 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 445], 10.00th=[ 445], 20.00th=[ 562], | 30.00th=[ 562], 40.00th=[152044], 50.00th=[152044], 60.00th=[206570], | 70.00th=[261096], 80.00th=[261096], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 2043, max= 4039, per=100.00%, avg=3255.00, stdev=1064.61, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1094KiB/s (1120kB/s)(6144KiB/5615msec); 0 zone resets clat (msec): min=240, max=2494, avg=717.29, stdev=877.09 lat (msec): min=240, max=2494, avg=717.37, stdev=877.11 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 472], | 70.00th=[ 498], 80.00th=[ 498], 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= 1992, max= 3683, per=58.43%, avg=2430.25, stdev=835.30, 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) : 250=25.00%, 500=50.00%, >=2000=8.33% cpu : usr=0.00%, sys=8.05%, ctx=253, 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=179665: Thu Aug 27 12:39:42 2026 read: IOPS=0, BW=800KiB/s (819kB/s)(5120KiB/6398msec) clat (msec): min=2, max=344, avg=223.73, stdev=150.96 lat (msec): min=2, max=344, avg=223.73, stdev=150.96 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 2027, max= 6131, per=100.00%, avg=4079.00, stdev=2901.97, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1120KiB/s (1147kB/s)(7168KiB/6398msec); 0 zone resets clat (msec): min=202, max=2653, avg=728.41, stdev=872.60 lat (msec): min=202, max=2653, avg=728.51, stdev=872.58 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 232], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 456], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 751], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 1973, max= 3953, per=65.50%, avg=2724.00, stdev=1003.37, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 4=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=7.66%, ctx=213, 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=2971KiB/s (3042kB/s), 297KiB/s-1273KiB/s (304kB/s-1304kB/s), io=20.0MiB (20.0MB), run=5615-6893msec WRITE: bw=4160KiB/s (4259kB/s), 909KiB/s-1486KiB/s (931kB/s-1521kB/s), io=28.0MiB (29.4MB), run=5615-6893msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179658: Thu Aug 27 12:39:42 2026 read: IOPS=1, BW=1289KiB/s (1320kB/s)(7168KiB/5561msec) clat (msec): min=108, max=441, avg=206.27, stdev=114.40 lat (msec): min=108, max=441, avg=206.27, stdev=114.40 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 117], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 194], | 70.00th=[ 194], 80.00th=[ 251], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1917, max= 6119, per=100.00%, avg=4041.00, stdev=2101.38, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=0, BW=921KiB/s (943kB/s)(5120KiB/5561msec); 0 zone resets clat (msec): min=86, max=2180, avg=814.44, stdev=833.33 lat (msec): min=86, max=2180, avg=814.53, stdev=833.32 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 885], 80.00th=[ 885], 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= 1996, max= 3835, per=65.55%, avg=2619.33, stdev=1052.91, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=2.36%, ctx=47, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179659: Thu Aug 27 12:39:42 2026 read: IOPS=0, BW=303KiB/s (311kB/s)(2048KiB/6748msec) clat (msec): min=101, max=639, avg=370.37, stdev=380.58 lat (msec): min=101, max=639, avg=370.37, stdev=380.58 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 102], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1408, max= 2039, per=60.39%, avg=1723.50, stdev=446.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1517KiB/s (1554kB/s)(10.0MiB/6748msec); 0 zone resets clat (msec): min=109, max=2738, avg=589.59, stdev=775.34 lat (msec): min=109, max=2738, avg=589.71, stdev=775.34 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 184], | 30.00th=[ 230], 40.00th=[ 232], 50.00th=[ 330], 60.00th=[ 347], | 70.00th=[ 498], 80.00th=[ 584], 90.00th=[ 651], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 1408, max= 2043, per=47.57%, avg=1901.00, stdev=222.54, samples=7 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=7 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, >=2000=8.33% cpu : usr=0.01%, sys=3.75%, ctx=118, 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=179660: Thu Aug 27 12:39:42 2026 read: IOPS=0, BW=856KiB/s (877kB/s)(6144KiB/7175msec) clat (msec): min=165, max=965, avg=465.28, stdev=337.55 lat (msec): min=165, max=965, avg=465.29, stdev=337.55 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 414], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1917, max= 2048, per=69.86%, avg=1993.80, stdev=53.19, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=856KiB/s (877kB/s)(6144KiB/7175msec); 0 zone resets clat (msec): min=133, max=2448, avg=709.66, stdev=861.74 lat (msec): min=133, max=2448, avg=709.74, stdev=861.75 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 418], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1992, max= 2048, per=50.80%, avg=2029.80, stdev=22.51, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 1000=16.67%, >=2000=8.33% cpu : usr=0.01%, sys=3.12%, ctx=173, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179661: Thu Aug 27 12:39:42 2026 read: IOPS=0, BW=836KiB/s (856kB/s)(5120KiB/6125msec) clat (msec): min=83, max=705, avg=324.44, stdev=254.41 lat (msec): min=83, max=705, avg=324.44, stdev=254.41 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 234], 60.00th=[ 234], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 3992, max= 4071, per=100.00%, avg=4031.50, stdev=55.86, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1170KiB/s (1198kB/s)(7168KiB/6125msec); 0 zone resets clat (msec): min=109, max=2460, avg=614.87, stdev=834.98 lat (msec): min=109, max=2460, avg=614.99, stdev=834.97 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 136], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 317], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 659], 90.00th=[ 2467], 95.00th=[ 2467], | 99.00th=[ 2467], 99.50th=[ 2467], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 2027, max= 6131, per=100.00%, avg=4622.67, stdev=2257.75, samples=3 iops : min= 1, max= 5, avg= 3.67, stdev= 2.31, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.03%, sys=3.18%, ctx=92, 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=2854KiB/s (2923kB/s), 303KiB/s-1289KiB/s (311kB/s-1320kB/s), io=20.0MiB (20.0MB), run=5561-7175msec WRITE: bw=3996KiB/s (4092kB/s), 856KiB/s-1517KiB/s (877kB/s-1554kB/s), io=28.0MiB (29.4MB), run=5561-7175msec 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=179672: Thu Aug 27 12:39:59 2026 read: IOPS=0, BW=3281KiB/s (3360kB/s)(12.0MiB/3745msec) clat (msec): min=815, max=1941, avg=1212.26, stdev=632.71 lat (msec): min=815, max=1941, avg=1212.26, stdev=632.71 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8094, max= 8110, per=100.00%, avg=8102.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=8.23%, ctx=385, 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=179673: Thu Aug 27 12:39:59 2026 read: IOPS=0, BW=1051KiB/s (1076kB/s)(4096KiB/3899msec) clat (nsec): min=1928.2M, max=1928.2M, avg=1928230130.00, stdev= 0.00 lat (nsec): min=1928.2M, max=1928.2M, avg=1928233243.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1921], 5.00th=[ 1921], 10.00th=[ 1921], 20.00th=[ 1921], | 30.00th=[ 1921], 40.00th=[ 1921], 50.00th=[ 1921], 60.00th=[ 1921], | 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= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2101KiB/s (2151kB/s)(8192KiB/3899msec); 0 zone resets clat (msec): min=471, max=1366, avg=918.87, stdev=632.52 lat (msec): min=472, max=1371, avg=921.69, stdev=635.74 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 1368], | 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= 8126, max= 8126, per=96.69%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=5.44%, ctx=200, 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=179674: Thu Aug 27 12:39:59 2026 write: IOPS=0, BW=3163KiB/s (3239kB/s)(12.0MiB/3885msec); 0 zone resets clat (msec): min=748, max=1872, avg=1258.27, stdev=569.08 lat (msec): min=748, max=1873, avg=1260.79, stdev=568.72 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8094, max= 8110, per=96.41%, avg=8102.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.13%, sys=3.37%, ctx=55, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179676: Thu Aug 27 12:39:59 2026 write: IOPS=0, BW=3470KiB/s (3553kB/s)(12.0MiB/3541msec); 0 zone resets clat (msec): min=459, max=1535, avg=1138.02, stdev=590.33 lat (msec): min=460, max=1535, avg=1138.48, stdev=590.26 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8062, max= 8094, per=96.12%, avg=8078.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.46%, ctx=57, 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=4202KiB/s (4303kB/s), 1051KiB/s-3281KiB/s (1076kB/s-3360kB/s), io=16.0MiB (16.8MB), run=3745-3899msec WRITE: bw=8404KiB/s (8606kB/s), 2101KiB/s-3470KiB/s (2151kB/s-3553kB/s), io=32.0MiB (33.6MB), run=3541-3899msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179677: Thu Aug 27 12:40:00 2026 read: IOPS=0, BW=3357KiB/s (3438kB/s)(12.0MiB/3660msec) clat (msec): min=611, max=1678, avg=1192.84, stdev=539.97 lat (msec): min=611, max=1678, avg=1192.84, stdev=539.97 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7460, max= 8094, per=100.00%, avg=7777.00, stdev=448.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.95%, ctx=47, 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=179678: Thu Aug 27 12:40:00 2026 read: IOPS=0, BW=1168KiB/s (1196kB/s)(4096KiB/3506msec) clat (nsec): min=1912.7M, max=1912.7M, avg=1912706399.00, stdev= 0.00 lat (nsec): min=1912.7M, max=1912.7M, avg=1912707364.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1921], 5.00th=[ 1921], 10.00th=[ 1921], 20.00th=[ 1921], | 30.00th=[ 1921], 40.00th=[ 1921], 50.00th=[ 1921], 60.00th=[ 1921], | 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= 7460, max= 7460, per=100.00%, avg=7460.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2337KiB/s (2393kB/s)(8192KiB/3506msec); 0 zone resets clat (msec): min=437, max=1147, avg=792.59, stdev=501.51 lat (msec): min=438, max=1150, avg=794.13, stdev=503.34 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8143, max= 8143, per=98.14%, avg=8143.00, 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=2.65%, ctx=28, 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=179679: Thu Aug 27 12:40:00 2026 write: IOPS=0, BW=3112KiB/s (3186kB/s)(12.0MiB/3949msec); 0 zone resets clat (msec): min=210, max=2335, avg=1313.51, stdev=1064.86 lat (msec): min=212, max=2336, avg=1314.46, stdev=1064.17 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1401], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 8143, max= 8143, per=98.14%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.10%, sys=2.84%, ctx=41, 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=179680: Thu Aug 27 12:40:00 2026 write: IOPS=1, BW=4100KiB/s (4199kB/s)(12.0MiB/2997msec); 0 zone resets clat (msec): min=506, max=1269, avg=997.29, stdev=425.60 lat (msec): min=507, max=1269, avg=998.42, stdev=426.12 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 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= 8094, max= 8143, per=97.85%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.13%, sys=3.30%, ctx=38, 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=4477KiB/s (4584kB/s), 1168KiB/s-3357KiB/s (1196kB/s-3438kB/s), io=16.0MiB (16.8MB), run=3506-3660msec WRITE: bw=8298KiB/s (8497kB/s), 2337KiB/s-4100KiB/s (2393kB/s-4199kB/s), io=32.0MiB (33.6MB), run=2997-3949msec