== sanity test 398b: DIO and buffer IO race ============== 03:52:17 (1790927537) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.50503 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=179473: Fri Oct 2 03:54:50 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5992KiB/129768msec) clat (usec): min=40, max=786686, avg=49233.11, stdev=39432.11 lat (usec): min=41, max=786688, avg=49234.34, stdev=39432.20 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 12649], 10.00th=[ 17957], 20.00th=[ 24249], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 41681], 60.00th=[ 48497], | 70.00th=[ 56361], 80.00th=[ 67634], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[168821], 99.50th=[206570], 99.90th=[522191], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 110, per=25.70%, avg=46.00, stdev=18.92, samples=254 iops : min= 1, max= 27, avg=10.84, stdev= 4.76, samples=254 write: IOPS=12, BW=48.5KiB/s (49.7kB/s)(6296KiB/129768msec); 0 zone resets clat (usec): min=971, max=265878, avg=35346.40, stdev=37800.17 lat (usec): min=972, max=265879, avg=35350.12, stdev=37799.78 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1254], 10.00th=[ 1614], 20.00th=[ 4228], | 30.00th=[ 7767], 40.00th=[ 15139], 50.00th=[ 23987], 60.00th=[ 32637], | 70.00th=[ 43779], 80.00th=[ 60031], 90.00th=[ 86508], 95.00th=[115868], | 99.00th=[170918], 99.50th=[177210], 99.90th=[242222], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 113, per=25.61%, avg=48.15, stdev=23.05, samples=255 iops : min= 1, max= 28, avg=11.38, stdev= 5.82, samples=255 lat (usec) : 50=0.16%, 100=1.33%, 250=0.10%, 500=0.03%, 1000=0.07% lat (msec) : 2=6.25%, 4=3.55%, 10=7.75%, 20=9.77%, 50=39.36% lat (msec) : 100=24.74%, 250=6.74%, 500=0.10%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.12%, ctx=6429, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179474: Fri Oct 2 03:54:50 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5940KiB/130626msec) clat (usec): min=34, max=798469, avg=49067.01, stdev=37682.86 lat (usec): min=34, max=798470, avg=49068.90, stdev=37682.97 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 13435], 10.00th=[ 18482], 20.00th=[ 23200], | 30.00th=[ 28967], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[106431], | 99.00th=[170918], 99.50th=[187696], 99.90th=[261096], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 95, per=25.17%, avg=45.05, stdev=18.61, samples=256 iops : min= 1, max= 23, avg=10.60, stdev= 4.71, samples=256 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6348KiB/130626msec); 0 zone resets clat (usec): min=995, max=271725, avg=36103.57, stdev=37336.11 lat (usec): min=995, max=271726, avg=36107.79, stdev=37334.04 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1254], 10.00th=[ 1565], 20.00th=[ 4080], | 30.00th=[ 8586], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 62129], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[156238], 99.50th=[179307], 99.90th=[250610], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 119, per=25.55%, avg=48.04, stdev=22.44, samples=256 iops : min= 1, max= 29, avg=11.36, stdev= 5.67, samples=256 lat (usec) : 50=0.16%, 100=1.27%, 250=0.07%, 500=0.03%, 1000=0.03% lat (msec) : 2=6.09%, 4=4.13%, 10=6.41%, 20=10.61%, 50=39.06% lat (msec) : 100=25.39%, 250=6.64%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=4.84%, ctx=6421, majf=0, minf=19 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=179475: Fri Oct 2 03:54:50 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6028KiB/133598msec) clat (usec): min=47, max=301209, avg=48647.47, stdev=33854.21 lat (usec): min=47, max=301210, avg=48654.32, stdev=33851.70 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11338], 10.00th=[ 17433], 20.00th=[ 23725], | 30.00th=[ 28967], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 47973], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[111674], | 99.00th=[162530], 99.50th=[214959], 99.90th=[265290], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=44.67, stdev=17.04, samples=262 iops : min= 1, max= 25, avg=10.51, stdev= 4.29, samples=262 write: IOPS=11, BW=46.9KiB/s (47.0kB/s)(6260KiB/133598msec); 0 zone resets clat (usec): min=1043, max=710503, avg=38250.96, stdev=41947.84 lat (usec): min=1044, max=710503, avg=38254.34, stdev=41947.53 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1287], 10.00th=[ 1778], 20.00th=[ 4359], | 30.00th=[ 8586], 40.00th=[ 18744], 50.00th=[ 27657], 60.00th=[ 36963], | 70.00th=[ 49021], 80.00th=[ 65799], 90.00th=[ 91751], 95.00th=[112722], | 99.00th=[173016], 99.50th=[193987], 99.90th=[258999], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 125, per=24.68%, avg=46.40, stdev=20.46, samples=262 iops : min= 1, max= 31, avg=10.94, stdev= 5.17, samples=262 lat (usec) : 50=0.16%, 100=1.63%, 250=0.10%, 750=0.07% lat (msec) : 2=5.66%, 4=4.07%, 10=7.26%, 20=8.95%, 50=38.80% lat (msec) : 100=26.07%, 250=7.10%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=4.88%, ctx=6447, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179476: Fri Oct 2 03:54:50 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(6052KiB/131123msec) clat (usec): min=47, max=271529, avg=48349.47, stdev=32273.66 lat (usec): min=48, max=271530, avg=48357.77, stdev=32270.58 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 11994], 10.00th=[ 17695], 20.00th=[ 23725], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[156238], 99.50th=[189793], 99.90th=[238027], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 96, per=25.60%, avg=45.82, stdev=18.52, samples=256 iops : min= 1, max= 24, avg=10.80, stdev= 4.70, samples=256 write: IOPS=11, BW=47.6KiB/s (48.7kB/s)(6236KiB/131123msec); 0 zone resets clat (usec): min=1033, max=728568, avg=36909.03, stdev=40951.64 lat (usec): min=1035, max=728569, avg=36914.18, stdev=40954.37 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1303], 10.00th=[ 2024], 20.00th=[ 4752], | 30.00th=[ 8455], 40.00th=[ 17171], 50.00th=[ 26608], 60.00th=[ 34866], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[160433], 99.50th=[183501], 99.90th=[258999], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 7, max= 102, per=25.21%, avg=47.40, stdev=21.06, samples=255 iops : min= 1, max= 25, avg=11.19, stdev= 5.31, samples=255 lat (usec) : 50=0.10%, 100=1.43%, 250=0.16%, 500=0.03% lat (msec) : 2=5.08%, 4=3.87%, 10=7.62%, 20=9.83%, 50=38.25% lat (msec) : 100=26.95%, 250=6.54%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=5.02%, ctx=6371, majf=0, minf=19 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), 45.1KiB/s-46.2KiB/s (46.2kB/s-47.3kB/s), io=23.4MiB (24.6MB), run=129768-133598msec WRITE: bw=188KiB/s (193kB/s), 46.9KiB/s-48.6KiB/s (47.0kB/s-49.8kB/s), io=24.6MiB (25.7MB), run=129768-133598msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179478: Fri Oct 2 03:55:33 2026 read: IOPS=8, BW=33.0KiB/s (34.8kB/s)(5992KiB/176441msec) clat (msec): min=5, max=770, avg=45.23, stdev=45.64 lat (msec): min=5, max=770, avg=45.23, stdev=45.64 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 66], 90.00th=[ 100], 95.00th=[ 134], | 99.00th=[ 209], 99.50th=[ 255], 99.90th=[ 422], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 127, per=25.94%, avg=35.28, stdev=23.37, samples=330 iops : min= 1, max= 31, avg= 8.16, stdev= 5.87, samples=330 write: IOPS=8, BW=35.7KiB/s (36.5kB/s)(6296KiB/176441msec); 0 zone resets clat (msec): min=11, max=336, avg=68.97, stdev=49.62 lat (msec): min=11, max=336, avg=68.97, stdev=49.62 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 63], | 70.00th=[ 80], 80.00th=[ 101], 90.00th=[ 136], 95.00th=[ 171], | 99.00th=[ 264], 99.50th=[ 288], 99.90th=[ 317], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 111, per=25.15%, avg=35.72, stdev=21.66, samples=342 iops : min= 1, max= 27, avg= 8.27, stdev= 5.45, samples=342 lat (msec) : 10=1.86%, 20=13.61%, 50=44.24%, 100=25.20%, 250=14.29% lat (msec) : 500=0.78%, 1000=0.03% cpu : usr=0.06%, sys=1.60%, ctx=4656, 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=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=179479: Fri Oct 2 03:55:33 2026 read: IOPS=8, BW=33.9KiB/s (34.7kB/s)(5940KiB/175198msec) clat (msec): min=5, max=796, avg=45.85, stdev=46.12 lat (msec): min=5, max=796, avg=45.85, stdev=46.12 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 102], 95.00th=[ 134], | 99.00th=[ 222], 99.50th=[ 249], 99.90th=[ 317], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 143, per=25.60%, avg=34.81, stdev=23.47, samples=332 iops : min= 1, max= 35, avg= 8.05, stdev= 5.91, samples=332 write: IOPS=9, BW=36.2KiB/s (37.1kB/s)(6348KiB/175198msec); 0 zone resets clat (msec): min=11, max=312, avg=67.41, stdev=46.26 lat (msec): min=11, max=312, avg=67.41, stdev=46.26 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 78], 80.00th=[ 99], 90.00th=[ 131], 95.00th=[ 163], | 99.00th=[ 234], 99.50th=[ 266], 99.90th=[ 292], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 111, per=25.45%, avg=36.14, stdev=21.49, samples=342 iops : min= 1, max= 27, avg= 8.38, stdev= 5.41, samples=342 lat (msec) : 10=1.79%, 20=13.02%, 50=45.31%, 100=25.00%, 250=14.39% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.05%, sys=1.66%, ctx=4668, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179480: Fri Oct 2 03:55:33 2026 read: IOPS=8, BW=34.3KiB/s (35.2kB/s)(6028KiB/175562msec) clat (msec): min=5, max=260, avg=44.51, stdev=38.79 lat (msec): min=5, max=260, avg=44.51, stdev=38.79 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 99], 95.00th=[ 126], | 99.00th=[ 190], 99.50th=[ 222], 99.90th=[ 259], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 7, max= 127, per=25.56%, avg=34.76, stdev=22.81, samples=336 iops : min= 1, max= 31, avg= 8.03, stdev= 5.73, samples=336 write: IOPS=8, BW=35.7KiB/s (36.5kB/s)(6260KiB/175562msec); 0 zone resets clat (msec): min=12, max=800, avg=69.23, stdev=51.95 lat (msec): min=12, max=800, avg=69.23, stdev=51.95 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 65], | 70.00th=[ 80], 80.00th=[ 101], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 243], 99.50th=[ 279], 99.90th=[ 372], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 119, per=24.94%, avg=35.42, stdev=22.39, samples=342 iops : min= 1, max= 29, avg= 8.20, stdev= 5.63, samples=342 lat (msec) : 10=2.28%, 20=13.48%, 50=42.84%, 100=26.50%, 250=14.32% lat (msec) : 500=0.55%, 1000=0.03% cpu : usr=0.06%, sys=1.72%, ctx=4785, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179481: Fri Oct 2 03:55:33 2026 read: IOPS=8, BW=34.5KiB/s (35.3kB/s)(6052KiB/175397msec) clat (msec): min=6, max=447, avg=44.17, stdev=39.75 lat (msec): min=6, max=447, avg=44.17, stdev=39.75 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 66], 90.00th=[ 100], 95.00th=[ 128], | 99.00th=[ 178], 99.50th=[ 226], 99.90th=[ 266], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7, max= 143, per=25.85%, avg=35.16, stdev=23.83, samples=334 iops : min= 1, max= 35, avg= 8.13, stdev= 6.00, samples=334 write: IOPS=8, BW=35.6KiB/s (36.4kB/s)(6236KiB/175397msec); 0 zone resets clat (msec): min=10, max=802, avg=69.56, stdev=51.91 lat (msec): min=10, max=802, avg=69.56, stdev=51.91 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 65], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 131], 95.00th=[ 163], | 99.00th=[ 255], 99.50th=[ 305], 99.90th=[ 342], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 110, per=24.81%, avg=35.23, stdev=21.47, samples=343 iops : min= 1, max= 27, avg= 8.15, stdev= 5.42, samples=343 lat (msec) : 10=2.05%, 20=14.19%, 50=42.84%, 100=25.65%, 250=14.65% lat (msec) : 500=0.59%, 1000=0.03% cpu : usr=0.06%, sys=1.68%, ctx=4697, 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=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=136KiB/s (139kB/s), 33.9KiB/s-34.5KiB/s (34.7kB/s-35.3kB/s), io=23.4MiB (24.6MB), run=175198-176441msec WRITE: bw=142KiB/s (146kB/s), 35.6KiB/s-36.2KiB/s (36.4kB/s-37.1kB/s), io=24.6MiB (25.7MB), run=175198-176441msec 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=179530: Fri Oct 2 03:56:16 2026 read: IOPS=12, BW=196KiB/s (200kB/s)(5920KiB/30272msec) clat (usec): min=36, max=222770, avg=44083.50, stdev=32815.92 lat (usec): min=36, max=222772, avg=44084.81, stdev=32815.94 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 61], 10.00th=[ 77], 20.00th=[ 21365], | 30.00th=[ 27395], 40.00th=[ 32375], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 51119], 80.00th=[ 62653], 90.00th=[ 88605], 95.00th=[103285], | 99.00th=[166724], 99.50th=[189793], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 63, max= 447, per=26.06%, avg=194.39, stdev=83.93, samples=59 iops : min= 3, max= 27, avg=11.41, stdev= 5.26, samples=59 write: IOPS=13, BW=210KiB/s (215kB/s)(6368KiB/30272msec); 0 zone resets clat (usec): min=1372, max=206195, avg=34381.38, stdev=37152.18 lat (usec): min=1373, max=206198, avg=34385.02, stdev=37152.00 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2409], 10.00th=[ 3359], 20.00th=[ 5735], | 30.00th=[ 9241], 40.00th=[ 13960], 50.00th=[ 20579], 60.00th=[ 28443], | 70.00th=[ 42206], 80.00th=[ 60556], 90.00th=[ 82314], 95.00th=[107480], | 99.00th=[189793], 99.50th=[202376], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 569, per=26.74%, avg=209.90, stdev=100.44, samples=59 iops : min= 1, max= 35, avg=12.39, stdev= 6.30, samples=59 lat (usec) : 50=1.17%, 100=4.04%, 750=0.13% lat (msec) : 2=1.69%, 4=5.21%, 10=10.16%, 20=11.59%, 50=37.76% lat (msec) : 100=22.66%, 250=5.60% cpu : usr=0.09%, sys=6.06%, ctx=1645, 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=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=179531: Fri Oct 2 03:56:16 2026 read: IOPS=11, BW=179KiB/s (184kB/s)(5744KiB/32040msec) clat (usec): min=51, max=378317, avg=49851.37, stdev=39574.99 lat (usec): min=52, max=378319, avg=49853.42, stdev=39575.08 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 78], 10.00th=[ 15270], 20.00th=[ 23200], | 30.00th=[ 30278], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 48497], | 70.00th=[ 58459], 80.00th=[ 71828], 90.00th=[ 99091], 95.00th=[119014], | 99.00th=[177210], 99.50th=[274727], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 31, max= 414, per=23.85%, avg=177.94, stdev=89.62, samples=63 iops : min= 1, max= 25, avg=10.37, stdev= 5.67, samples=63 write: IOPS=12, BW=204KiB/s (209kB/s)(6544KiB/32040msec); 0 zone resets clat (usec): min=1539, max=228088, avg=33981.15, stdev=34226.94 lat (usec): min=1541, max=228092, avg=33983.30, stdev=34227.02 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2933], 10.00th=[ 4146], 20.00th=[ 6521], | 30.00th=[ 10028], 40.00th=[ 14746], 50.00th=[ 20317], 60.00th=[ 30802], | 70.00th=[ 43779], 80.00th=[ 60556], 90.00th=[ 78119], 95.00th=[102237], | 99.00th=[147850], 99.50th=[164627], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 510, per=26.03%, avg=204.32, stdev=112.37, samples=63 iops : min= 1, max= 31, avg=12.02, stdev= 7.06, samples=63 lat (usec) : 100=3.12%, 250=0.26%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.91%, 4=3.78%, 10=11.20%, 20=14.19%, 50=34.51% lat (msec) : 100=24.48%, 250=7.03%, 500=0.26% cpu : usr=0.07%, sys=6.19%, ctx=1706, 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=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=179532: Fri Oct 2 03:56:16 2026 read: IOPS=12, BW=195KiB/s (200kB/s)(6256KiB/32098msec) clat (usec): min=42, max=329985, avg=46712.94, stdev=38204.41 lat (usec): min=42, max=329987, avg=46714.63, stdev=38204.03 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 217], 20.00th=[ 20055], | 30.00th=[ 28181], 40.00th=[ 34341], 50.00th=[ 39060], 60.00th=[ 45351], | 70.00th=[ 54789], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[181404], 99.50th=[261096], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 573, per=26.16%, avg=195.14, stdev=95.28, samples=63 iops : min= 1, max= 35, avg=11.44, stdev= 5.96, samples=63 write: IOPS=11, BW=188KiB/s (192kB/s)(6032KiB/32098msec); 0 zone resets clat (usec): min=1628, max=189667, avg=36015.32, stdev=34319.43 lat (usec): min=1630, max=189668, avg=36026.65, stdev=34329.99 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2474], 10.00th=[ 3523], 20.00th=[ 6849], | 30.00th=[ 11207], 40.00th=[ 18482], 50.00th=[ 26608], 60.00th=[ 35390], | 70.00th=[ 44303], 80.00th=[ 62129], 90.00th=[ 81265], 95.00th=[106431], | 99.00th=[149947], 99.50th=[181404], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 62, max= 472, per=23.94%, avg=187.92, stdev=88.10, samples=62 iops : min= 3, max= 29, avg=11.00, stdev= 5.58, samples=62 lat (usec) : 50=0.39%, 100=4.17%, 250=0.65%, 500=0.13% lat (msec) : 2=1.30%, 4=4.30%, 10=8.72%, 20=11.20%, 50=38.67% lat (msec) : 100=23.18%, 250=7.03%, 500=0.26% cpu : usr=0.07%, sys=5.72%, ctx=1744, 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=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=179533: Fri Oct 2 03:56:16 2026 read: IOPS=11, BW=192KiB/s (196kB/s)(6032KiB/31446msec) clat (usec): min=43, max=246659, avg=47864.65, stdev=36765.07 lat (usec): min=43, max=246661, avg=47865.90, stdev=36765.07 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 104], 20.00th=[ 23200], | 30.00th=[ 28967], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 47973], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[111674], | 99.00th=[225444], 99.50th=[231736], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 62, max= 472, per=25.54%, avg=190.55, stdev=83.69, samples=62 iops : min= 3, max= 29, avg=11.16, stdev= 5.26, samples=62 write: IOPS=12, BW=199KiB/s (204kB/s)(6256KiB/31446msec); 0 zone resets clat (usec): min=1466, max=227111, avg=34056.54, stdev=36747.88 lat (usec): min=1467, max=227113, avg=34096.07, stdev=36817.76 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 1958], 10.00th=[ 3097], 20.00th=[ 5014], | 30.00th=[ 8455], 40.00th=[ 14091], 50.00th=[ 19792], 60.00th=[ 31065], | 70.00th=[ 43779], 80.00th=[ 57410], 90.00th=[ 83362], 95.00th=[106431], | 99.00th=[181404], 99.50th=[219153], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 572, per=25.37%, avg=199.19, stdev=110.67, samples=62 iops : min= 1, max= 35, avg=11.71, stdev= 6.97, samples=62 lat (usec) : 50=0.39%, 100=4.43%, 250=0.52% lat (msec) : 2=2.60%, 4=4.56%, 10=9.77%, 20=11.85%, 50=34.77% lat (msec) : 100=24.09%, 250=7.03% cpu : usr=0.06%, sys=6.14%, ctx=1734, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=746KiB/s (764kB/s), 179KiB/s-196KiB/s (184kB/s-200kB/s), io=23.4MiB (24.5MB), run=30272-32098msec WRITE: bw=785KiB/s (804kB/s), 188KiB/s-210KiB/s (192kB/s-215kB/s), io=24.6MiB (25.8MB), run=30272-32098msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179535: Fri Oct 2 03:56:27 2026 read: IOPS=8, BW=142KiB/s (145kB/s)(5920KiB/41792msec) clat (msec): min=7, max=240, avg=44.98, stdev=42.93 lat (msec): min=7, max=240, avg=44.98, stdev=42.93 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 61], 90.00th=[ 104], 95.00th=[ 150], | 99.00th=[ 209], 99.50th=[ 211], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 383, per=24.24%, avg=138.20, stdev=93.06, samples=82 iops : min= 1, max= 23, avg= 7.82, stdev= 5.84, samples=82 write: IOPS=9, BW=152KiB/s (156kB/s)(6368KiB/41792msec); 0 zone resets clat (msec): min=14, max=321, avg=62.90, stdev=47.46 lat (msec): min=14, max=321, avg=62.91, stdev=47.46 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 46], 60.00th=[ 54], | 70.00th=[ 68], 80.00th=[ 87], 90.00th=[ 123], 95.00th=[ 163], | 99.00th=[ 264], 99.50th=[ 268], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 351, per=25.44%, avg=152.37, stdev=95.60, samples=81 iops : min= 1, max= 21, avg= 8.72, stdev= 6.05, samples=81 lat (msec) : 10=1.43%, 20=14.19%, 50=48.31%, 100=22.79%, 250=12.76% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.90%, ctx=1180, 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=179536: Fri Oct 2 03:56:27 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(5744KiB/42010msec) clat (msec): min=6, max=258, avg=44.63, stdev=43.43 lat (msec): min=6, max=258, avg=44.63, stdev=43.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 61], 90.00th=[ 108], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 251], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 30, max= 509, per=25.18%, avg=143.51, stdev=100.09, samples=79 iops : min= 1, max= 31, avg= 8.16, stdev= 6.34, samples=79 write: IOPS=9, BW=156KiB/s (160kB/s)(6544KiB/42010msec); 0 zone resets clat (msec): min=13, max=275, avg=62.98, stdev=45.56 lat (msec): min=13, max=275, avg=62.99, stdev=45.56 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 49], 60.00th=[ 58], | 70.00th=[ 69], 80.00th=[ 92], 90.00th=[ 122], 95.00th=[ 161], | 99.00th=[ 241], 99.50th=[ 266], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 512, per=26.57%, avg=159.15, stdev=100.75, samples=81 iops : min= 1, max= 32, avg= 9.15, stdev= 6.37, samples=81 lat (msec) : 10=1.17%, 20=14.32%, 50=47.27%, 100=23.44%, 250=13.15% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.87%, ctx=1202, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179537: Fri Oct 2 03:56:27 2026 read: IOPS=9, BW=151KiB/s (154kB/s)(6256KiB/41531msec) clat (msec): min=7, max=253, avg=41.44, stdev=36.70 lat (msec): min=7, max=253, avg=41.44, stdev=36.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 90], 95.00th=[ 124], | 99.00th=[ 194], 99.50th=[ 222], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 31, max= 540, per=27.85%, avg=158.74, stdev=107.00, samples=78 iops : min= 1, max= 33, avg= 9.12, stdev= 6.74, samples=78 write: IOPS=9, BW=145KiB/s (149kB/s)(6032KiB/41531msec); 0 zone resets clat (msec): min=12, max=368, avg=66.96, stdev=48.33 lat (msec): min=12, max=368, avg=66.97, stdev=48.35 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 63], | 70.00th=[ 77], 80.00th=[ 95], 90.00th=[ 129], 95.00th=[ 171], | 99.00th=[ 224], 99.50th=[ 245], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 383, per=24.03%, avg=143.95, stdev=84.12, samples=82 iops : min= 1, max= 23, avg= 8.18, stdev= 5.32, samples=82 lat (msec) : 10=1.17%, 20=14.84%, 50=46.61%, 100=24.35%, 250=12.76% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.91%, ctx=1227, 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=179538: Fri Oct 2 03:56:27 2026 read: IOPS=9, BW=145KiB/s (149kB/s)(6032KiB/41589msec) clat (msec): min=7, max=244, avg=44.30, stdev=38.76 lat (msec): min=7, max=244, avg=44.30, stdev=38.76 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 68], 90.00th=[ 95], 95.00th=[ 127], | 99.00th=[ 184], 99.50th=[ 236], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 446, per=26.10%, avg=148.75, stdev=95.61, samples=79 iops : min= 1, max= 27, avg= 8.48, stdev= 6.04, samples=79 write: IOPS=9, BW=150KiB/s (154kB/s)(6256KiB/41589msec); 0 zone resets clat (msec): min=13, max=299, avg=63.31, stdev=47.15 lat (msec): min=13, max=299, avg=63.32, stdev=47.15 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 44], 60.00th=[ 54], | 70.00th=[ 68], 80.00th=[ 95], 90.00th=[ 126], 95.00th=[ 155], | 99.00th=[ 257], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 381, per=25.00%, avg=149.74, stdev=93.03, samples=82 iops : min= 1, max= 23, avg= 8.55, stdev= 5.90, samples=82 lat (msec) : 10=1.17%, 20=13.80%, 50=49.35%, 100=22.01%, 250=13.02% lat (msec) : 500=0.65% cpu : usr=0.06%, sys=1.89%, ctx=1217, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=570KiB/s (584kB/s), 137KiB/s-151KiB/s (140kB/s-154kB/s), io=23.4MiB (24.5MB), run=41531-42010msec WRITE: bw=600KiB/s (614kB/s), 145KiB/s-156KiB/s (149kB/s-160kB/s), io=24.6MiB (25.8MB), run=41531-42010msec 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=179549: Fri Oct 2 03:56:41 2026 read: IOPS=2, BW=2681KiB/s (2745kB/s)(7168KiB/2674msec) clat (msec): min=69, max=493, avg=210.70, stdev=170.73 lat (msec): min=69, max=493, avg=210.71, stdev=170.73 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 74], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 161], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 405], 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= 1976, max= 6107, per=83.59%, avg=4054.00, stdev=2065.61, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1915KiB/s (1961kB/s)(5120KiB/2674msec); 0 zone resets clat (msec): min=97, max=714, avg=234.91, stdev=268.73 lat (msec): min=97, max=714, avg=235.41, stdev=268.54 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 129], 60.00th=[ 129], | 70.00th=[ 138], 80.00th=[ 138], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1976, max= 4079, per=37.29%, avg=2532.25, stdev=1031.57, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=41.67%, 250=33.33%, 500=16.67%, 750=8.33% cpu : usr=0.00%, sys=5.27%, ctx=48, 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=179550: Fri Oct 2 03:56:41 2026 read: IOPS=0, BW=485KiB/s (497kB/s)(2048KiB/4222msec) clat (msec): min=118, max=319, avg=219.30, stdev=141.88 lat (msec): min=118, max=319, avg=219.30, stdev=141.88 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1961, max= 1976, per=40.59%, avg=1968.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2425KiB/s (2484kB/s)(10.0MiB/4222msec); 0 zone resets clat (msec): min=120, max=1116, avg=367.44, stdev=302.18 lat (msec): min=120, max=1116, avg=367.67, stdev=302.19 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 165], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 247], 60.00th=[ 271], | 70.00th=[ 376], 80.00th=[ 405], 90.00th=[ 617], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1976, max= 4031, per=38.05%, avg=2583.86, stdev=952.50, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=7.58%, ctx=91, 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=179551: Fri Oct 2 03:56:41 2026 read: IOPS=1, BW=1518KiB/s (1554kB/s)(6144KiB/4048msec) clat (msec): min=108, max=331, avg=226.20, stdev=86.98 lat (msec): min=108, max=331, avg=226.20, stdev=86.98 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 271], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 2043, max= 4079, per=69.20%, avg=3356.00, stdev=1139.03, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1518KiB/s (1554kB/s)(6144KiB/4048msec); 0 zone resets clat (msec): min=132, max=1003, avg=432.16, stdev=340.50 lat (msec): min=132, max=1003, avg=432.25, stdev=340.50 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 309], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 2039, max= 4156, per=40.44%, avg=2746.00, stdev=1221.10, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.05%, ctx=81, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179552: Fri Oct 2 03:56:41 2026 read: IOPS=1, BW=1515KiB/s (1551kB/s)(5120KiB/3380msec) clat (msec): min=181, max=840, avg=409.39, stdev=282.40 lat (msec): min=181, max=840, avg=409.39, stdev=282.40 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 2031, max= 3946, per=55.09%, avg=2672.00, stdev=1103.32, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2121KiB/s (2172kB/s)(7168KiB/3380msec); 0 zone resets clat (msec): min=124, max=259, avg=178.68, stdev=48.73 lat (msec): min=128, max=259, avg=179.47, stdev=47.85 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 197], 60.00th=[ 199], | 70.00th=[ 199], 80.00th=[ 199], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 1973, max= 4248, per=45.45%, avg=3086.75, stdev=1249.96, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 250=75.00%, 500=8.33%, 750=8.33%, 1000=8.33% cpu : usr=0.06%, sys=4.02%, ctx=51, 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=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=4851KiB/s (4967kB/s), 485KiB/s-2681KiB/s (497kB/s-2745kB/s), io=20.0MiB (20.0MB), run=2674-4222msec WRITE: bw=6791KiB/s (6954kB/s), 1518KiB/s-2425KiB/s (1554kB/s-2484kB/s), io=28.0MiB (29.4MB), run=2674-4222msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179554: Fri Oct 2 03:56:42 2026 read: IOPS=2, BW=2144KiB/s (2196kB/s)(7168KiB/3343msec) clat (usec): min=512, max=1003.5k, avg=301550.70, stdev=337820.53 lat (usec): min=514, max=1003.5k, avg=301551.72, stdev=337820.52 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], | 20.00th=[ 143655], 30.00th=[ 152044], 40.00th=[ 152044], | 50.00th=[ 177210], 60.00th=[ 179307], 70.00th=[ 179307], | 80.00th=[ 455082], 90.00th=[1002439], 95.00th=[1002439], | 99.00th=[1002439], 99.50th=[1002439], 99.90th=[1002439], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 2023, max= 4063, per=58.53%, avg=3041.25, stdev=1161.46, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1532KiB/s (1568kB/s)(5120KiB/3343msec); 0 zone resets clat (msec): min=98, max=432, avg=244.49, stdev=152.29 lat (msec): min=98, max=432, avg=244.67, stdev=152.44 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 228], 60.00th=[ 228], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 2031, max= 3764, per=35.94%, avg=2614.33, stdev=995.68, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.03%, sys=16.52%, ctx=246, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179555: Fri Oct 2 03:56:42 2026 read: IOPS=0, BW=520KiB/s (532kB/s)(2048KiB/3941msec) clat (msec): min=239, max=296, avg=267.83, stdev=40.24 lat (msec): min=239, max=296, avg=267.83, stdev=40.24 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1892, max= 2023, per=37.67%, avg=1957.50, stdev=92.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2598KiB/s (2661kB/s)(10.0MiB/3941msec); 0 zone resets clat (msec): min=107, max=1011, avg=340.10, stdev=305.91 lat (msec): min=107, max=1011, avg=340.31, stdev=305.86 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 150], 50.00th=[ 155], 60.00th=[ 174], | 70.00th=[ 397], 80.00th=[ 518], 90.00th=[ 659], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1882, max= 6144, per=41.57%, avg=3024.25, stdev=2081.12, samples=4 iops : min= 1, max= 6, avg= 2.50, stdev= 2.38, samples=4 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.03%, sys=16.77%, ctx=138, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179556: Fri Oct 2 03:56:42 2026 read: IOPS=1, BW=1709KiB/s (1750kB/s)(6144KiB/3595msec) clat (usec): min=362, max=301975, avg=113970.01, stdev=131168.88 lat (usec): min=363, max=301975, avg=113971.08, stdev=131168.66 clat percentiles (usec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 562], 50.00th=[ 562], 60.00th=[175113], | 70.00th=[204473], 80.00th=[204473], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 2015, max= 5647, per=62.26%, avg=3235.00, stdev=2088.90, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1709KiB/s (1750kB/s)(6144KiB/3595msec); 0 zone resets clat (msec): min=233, max=1222, avg=484.83, stdev=380.99 lat (msec): min=233, max=1223, avg=484.89, stdev=381.00 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 456], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 2015, max= 3764, per=39.07%, avg=2842.33, stdev=878.31, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=33.33%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=13.88%, ctx=159, 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=179557: Fri Oct 2 03:56:42 2026 read: IOPS=1, BW=1446KiB/s (1481kB/s)(5120KiB/3541msec) clat (usec): min=611, max=112413, avg=38327.39, stdev=51219.76 lat (usec): min=612, max=112414, avg=38328.48, stdev=51219.67 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 1876], 40.00th=[ 1876], 50.00th=[ 4817], 60.00th=[ 4817], | 70.00th=[ 71828], 80.00th=[ 71828], 90.00th=[112722], 95.00th=[112722], | 99.00th=[112722], 99.50th=[112722], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=2024KiB/s (2073kB/s)(7168KiB/3541msec); 0 zone resets clat (msec): min=152, max=1376, avg=478.02, stdev=421.83 lat (msec): min=152, max=1376, avg=478.27, stdev=421.76 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 186], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 334], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 542], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1882, max= 4063, per=34.12%, avg=2482.25, stdev=1055.41, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 10=8.33%, 100=8.33%, 250=25.00%, 500=25.00% lat (msec) : 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=13.28%, ctx=132, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5197KiB/s (5321kB/s), 520KiB/s-2144KiB/s (532kB/s-2196kB/s), io=20.0MiB (20.0MB), run=3343-3941msec WRITE: bw=7275KiB/s (7450kB/s), 1532KiB/s-2598KiB/s (1568kB/s-2661kB/s), io=28.0MiB (29.4MB), run=3343-3941msec 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=179569: Fri Oct 2 03:56:56 2026 read: IOPS=1, BW=4301KiB/s (4404kB/s)(12.0MiB/2857msec) clat (msec): min=845, max=1017, avg=951.96, stdev=92.88 lat (msec): min=845, max=1017, avg=951.97, stdev=92.88 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 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= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, 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=14.36%, ctx=275, 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=179570: Fri Oct 2 03:56:56 2026 read: IOPS=0, BW=1554KiB/s (1591kB/s)(4096KiB/2636msec) clat (nsec): min=870942k, max=870942k, avg=870941780.00, stdev= 0.00 lat (nsec): min=870945k, max=870945k, avg=870944583.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3108KiB/s (3182kB/s)(8192KiB/2636msec); 0 zone resets clat (msec): min=442, max=1249, avg=846.09, stdev=570.09 lat (msec): min=443, max=1249, avg=846.58, stdev=570.23 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=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.67%, ctx=72, 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=179571: Fri Oct 2 03:56:56 2026 write: IOPS=0, BW=3575KiB/s (3661kB/s)(12.0MiB/3437msec); 0 zone resets clat (msec): min=275, max=2778, avg=1142.81, stdev=1417.17 lat (msec): min=275, max=2779, avg=1143.53, stdev=1417.82 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min=16000, max=16000, per=100.00%, avg=16000.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.10%, ctx=55, 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=179572: Fri Oct 2 03:56:56 2026 write: IOPS=1, BW=5430KiB/s (5560kB/s)(12.0MiB/2263msec); 0 zone resets clat (msec): min=349, max=1059, avg=753.23, stdev=365.01 lat (msec): min=349, max=1060, avg=753.62, stdev=365.07 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 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= 5953, max= 8078, per=73.59%, avg=7015.50, stdev=1502.60, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.92%, ctx=58, 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=5735KiB/s (5872kB/s), 1554KiB/s-4301KiB/s (1591kB/s-4404kB/s), io=16.0MiB (16.8MB), run=2636-2857msec WRITE: bw=9534KiB/s (9763kB/s), 3108KiB/s-5430KiB/s (3182kB/s-5560kB/s), io=32.0MiB (33.6MB), run=2263-3437msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179564: Fri Oct 2 03:56:57 2026 read: IOPS=1, BW=7425KiB/s (7603kB/s)(12.0MiB/1655msec) clat (msec): min=246, max=922, avg=503.05, stdev=366.26 lat (msec): min=246, max=922, avg=503.05, stdev=366.26 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7135, max= 7816, per=100.00%, avg=7475.50, stdev=481.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.24%, sys=6.65%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179565: Fri Oct 2 03:56:57 2026 read: IOPS=0, BW=1059KiB/s (1084kB/s)(4096KiB/3869msec) clat (nsec): min=1509.9M, max=1509.9M, avg=1509922684.00, stdev= 0.00 lat (nsec): min=1509.9M, max=1509.9M, avg=1509925289.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1502], 5.00th=[ 1502], 10.00th=[ 1502], 20.00th=[ 1502], | 30.00th=[ 1502], 40.00th=[ 1502], 50.00th=[ 1502], 60.00th=[ 1502], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2117KiB/s (2168kB/s)(8192KiB/3869msec); 0 zone resets clat (msec): min=236, max=1955, avg=1095.99, stdev=1215.45 lat (msec): min=236, max=1955, avg=1096.37, stdev=1215.42 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 1955], | 70.00th=[ 1955], 80.00th=[ 1955], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 8143, max= 8143, per=96.15%, 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=66.67% cpu : usr=0.00%, sys=3.52%, ctx=55, 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=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=179566: Fri Oct 2 03:56:57 2026 write: IOPS=1, BW=5161KiB/s (5285kB/s)(12.0MiB/2381msec); 0 zone resets clat (msec): min=572, max=929, avg=723.97, stdev=184.69 lat (msec): min=572, max=930, avg=724.34, stdev=184.71 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7801, max= 7816, per=92.20%, avg=7808.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.51%, ctx=62, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=179568: Fri Oct 2 03:56:57 2026 write: IOPS=1, BW=5657KiB/s (5793kB/s)(12.0MiB/2172msec); 0 zone resets clat (msec): min=378, max=1195, avg=676.74, stdev=450.91 lat (msec): min=378, max=1195, avg=677.54, stdev=450.54 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min=15633, max=15633, per=100.00%, avg=15633.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.23%, sys=7.60%, ctx=61, 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=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=4235KiB/s (4336kB/s), 1059KiB/s-7425KiB/s (1084kB/s-7603kB/s), io=16.0MiB (16.8MB), run=1655-3869msec WRITE: bw=8469KiB/s (8673kB/s), 2117KiB/s-5657KiB/s (2168kB/s-5793kB/s), io=32.0MiB (33.6MB), run=2172-3869msec