== sanity test 398b: DIO and buffer IO race ============== 08:09:33 (1789128573) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.8958 s, 7.3 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=179009: Fri Sep 11 08:11:49 2026 read: IOPS=12, BW=51.6KiB/s (52.9kB/s)(5992KiB/116060msec) clat (usec): min=48, max=1076.2k, avg=42289.89, stdev=37004.02 lat (usec): min=48, max=1076.2k, avg=42292.14, stdev=37003.61 clat percentiles (usec): | 1.00th=[ 67], 5.00th=[ 12387], 10.00th=[ 16319], | 20.00th=[ 21890], 30.00th=[ 26870], 40.00th=[ 31327], | 50.00th=[ 37487], 60.00th=[ 43779], 70.00th=[ 49546], | 80.00th=[ 58983], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[ 128451], 99.50th=[ 145753], 99.90th=[ 291505], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 103, per=25.15%, avg=51.30, stdev=18.94, samples=228 iops : min= 1, max= 25, avg=12.18, stdev= 4.76, samples=228 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(6296KiB/116060msec); 0 zone resets clat (usec): min=1054, max=311143, avg=33134.18, stdev=33490.94 lat (usec): min=1055, max=311146, avg=33149.01, stdev=33499.64 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1582], 10.00th=[ 2507], 20.00th=[ 4621], | 30.00th=[ 7832], 40.00th=[ 14877], 50.00th=[ 24511], 60.00th=[ 32637], | 70.00th=[ 43779], 80.00th=[ 56361], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[143655], 99.50th=[168821], 99.90th=[227541], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 15, max= 143, per=25.42%, avg=54.15, stdev=21.68, samples=227 iops : min= 3, max= 35, avg=12.89, stdev= 5.47, samples=227 lat (usec) : 50=0.03%, 100=1.43%, 250=0.26%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=3.61%, 4=5.18%, 10=8.79%, 20=11.23%, 50=42.35% lat (msec) : 100=23.37%, 250=3.52%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=6.13%, ctx=6976, 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=179010: Fri Sep 11 08:11:49 2026 read: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5940KiB/116962msec) clat (usec): min=39, max=1081.7k, avg=43678.45, stdev=37324.78 lat (usec): min=40, max=1081.7k, avg=43682.93, stdev=37324.84 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 11994], 10.00th=[ 17957], | 20.00th=[ 23462], 30.00th=[ 28181], 40.00th=[ 33162], | 50.00th=[ 38536], 60.00th=[ 43779], 70.00th=[ 50594], | 80.00th=[ 58983], 90.00th=[ 76022], 95.00th=[ 91751], | 99.00th=[ 126354], 99.50th=[ 139461], 99.90th=[ 238027], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 95, per=24.88%, avg=50.75, stdev=18.05, samples=229 iops : min= 1, max= 23, avg=12.03, stdev= 4.55, samples=229 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(6348KiB/116962msec); 0 zone resets clat (usec): min=1034, max=300477, avg=32504.84, stdev=33281.00 lat (usec): min=1036, max=300480, avg=32507.19, stdev=33280.95 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1549], 10.00th=[ 2245], 20.00th=[ 4178], | 30.00th=[ 7832], 40.00th=[ 15270], 50.00th=[ 24249], 60.00th=[ 31327], | 70.00th=[ 40633], 80.00th=[ 56361], 90.00th=[ 74974], 95.00th=[ 99091], | 99.00th=[145753], 99.50th=[162530], 99.90th=[242222], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 119, per=25.25%, avg=53.78, stdev=22.90, samples=230 iops : min= 1, max= 29, avg=12.80, stdev= 5.75, samples=230 lat (usec) : 50=0.03%, 100=1.60%, 250=0.20%, 500=0.03% lat (msec) : 2=4.26%, 4=5.70%, 10=7.81%, 20=10.12%, 50=43.39% lat (msec) : 100=22.82%, 250=3.97%, 500=0.03%, 2000=0.03% cpu : usr=0.10%, sys=6.04%, ctx=6762, 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=179011: Fri Sep 11 08:11:49 2026 read: IOPS=13, BW=52.3KiB/s (53.6kB/s)(6028KiB/115266msec) clat (usec): min=37, max=312215, avg=41950.02, stdev=28341.44 lat (usec): min=37, max=312217, avg=41957.01, stdev=28340.71 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 10552], 10.00th=[ 16188], 20.00th=[ 21890], | 30.00th=[ 26346], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 42206], | 70.00th=[ 49021], 80.00th=[ 58983], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[137364], 99.50th=[175113], 99.90th=[308282], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 103, per=25.46%, avg=51.93, stdev=19.40, samples=226 iops : min= 1, max= 25, avg=12.34, stdev= 4.88, samples=226 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(6260KiB/115266msec); 0 zone resets clat (usec): min=916, max=802703, avg=32870.32, stdev=37345.16 lat (usec): min=917, max=802704, avg=32882.19, stdev=37340.41 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1500], 10.00th=[ 2278], 20.00th=[ 4228], | 30.00th=[ 8094], 40.00th=[ 15270], 50.00th=[ 23987], 60.00th=[ 32113], | 70.00th=[ 42206], 80.00th=[ 56361], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[156238], 99.90th=[225444], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 127, per=25.51%, avg=54.34, stdev=21.94, samples=224 iops : min= 1, max= 31, avg=12.94, stdev= 5.50, samples=224 lat (usec) : 50=0.10%, 100=1.53%, 250=0.20%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.30%, 4=5.53%, 10=7.78%, 20=11.26%, 50=42.87% lat (msec) : 100=22.56%, 250=3.65%, 500=0.07%, 1000=0.03% cpu : usr=0.10%, sys=6.23%, ctx=6784, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179012: Fri Sep 11 08:11:49 2026 read: IOPS=12, BW=51.5KiB/s (52.7kB/s)(6052KiB/117577msec) clat (usec): min=49, max=244249, avg=41801.94, stdev=27065.36 lat (usec): min=49, max=244250, avg=41806.55, stdev=27063.66 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 816], 10.00th=[ 16319], 20.00th=[ 21890], | 30.00th=[ 26870], 40.00th=[ 31589], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 50070], 80.00th=[ 58459], 90.00th=[ 76022], 95.00th=[ 88605], | 99.00th=[129500], 99.50th=[154141], 99.90th=[223347], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 15, max= 127, per=25.42%, avg=51.85, stdev=19.49, samples=228 iops : min= 3, max= 31, avg=12.31, stdev= 4.88, samples=228 write: IOPS=13, BW=53.0KiB/s (54.3kB/s)(6236KiB/117577msec); 0 zone resets clat (usec): min=1016, max=810570, avg=34480.24, stdev=39508.91 lat (usec): min=1018, max=810572, avg=34487.64, stdev=39514.74 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1549], 10.00th=[ 2474], 20.00th=[ 4752], | 30.00th=[ 7767], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 33162], | 70.00th=[ 44303], 80.00th=[ 58459], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[149947], 99.50th=[191890], 99.90th=[258999], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 15, max= 134, per=24.68%, avg=52.56, stdev=21.49, samples=231 iops : min= 3, max= 33, avg=12.50, stdev= 5.40, samples=231 lat (usec) : 50=0.03%, 100=1.79%, 250=0.46%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=3.97%, 4=4.95%, 10=8.40%, 20=9.86%, 50=43.07% lat (msec) : 100=23.44%, 250=3.74%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=6.01%, ctx=6841, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=204KiB/s (209kB/s), 50.8KiB/s-52.3KiB/s (52.0kB/s-53.6kB/s), io=23.4MiB (24.6MB), run=115266-117577msec WRITE: bw=214KiB/s (219kB/s), 53.0KiB/s-54.3KiB/s (54.3kB/s-55.6kB/s), io=24.6MiB (25.7MB), run=115266-117577msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179014: Fri Sep 11 08:12:24 2026 read: IOPS=9, BW=39.4KiB/s (40.4kB/s)(5992KiB/151922msec) clat (msec): min=5, max=1098, avg=39.07, stdev=44.89 lat (msec): min=5, max=1098, avg=39.07, stdev=44.89 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 56], 90.00th=[ 90], 95.00th=[ 114], | 99.00th=[ 180], 99.50th=[ 211], 99.90th=[ 266], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 135, per=25.27%, avg=39.93, stdev=28.13, samples=290 iops : min= 1, max= 33, avg= 9.32, stdev= 7.08, samples=290 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(6296KiB/151922msec); 0 zone resets clat (msec): min=8, max=327, avg=59.23, stdev=43.11 lat (msec): min=8, max=327, avg=59.23, stdev=43.11 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 55], | 70.00th=[ 71], 80.00th=[ 89], 90.00th=[ 120], 95.00th=[ 144], | 99.00th=[ 209], 99.50th=[ 234], 99.90th=[ 275], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 127, per=24.77%, avg=40.86, stdev=26.88, samples=298 iops : min= 1, max= 31, avg= 9.54, stdev= 6.75, samples=298 lat (msec) : 10=2.54%, 20=20.12%, 50=44.47%, 100=21.16%, 250=11.46% lat (msec) : 500=0.23%, 2000=0.03% cpu : usr=0.09%, sys=2.10%, ctx=4973, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179015: Fri Sep 11 08:12:24 2026 read: IOPS=9, BW=39.3KiB/s (40.2kB/s)(5940KiB/151259msec) clat (msec): min=5, max=904, avg=38.81, stdev=42.66 lat (msec): min=5, max=904, avg=38.81, stdev=42.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 87], 95.00th=[ 118], | 99.00th=[ 180], 99.50th=[ 199], 99.90th=[ 368], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 150, per=25.16%, avg=39.75, stdev=27.98, samples=291 iops : min= 1, max= 37, avg= 9.26, stdev= 7.03, samples=291 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(6348KiB/151259msec); 0 zone resets clat (msec): min=9, max=363, avg=58.90, stdev=42.21 lat (msec): min=9, max=363, avg=58.90, stdev=42.21 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 44], 60.00th=[ 54], | 70.00th=[ 70], 80.00th=[ 89], 90.00th=[ 115], 95.00th=[ 144], | 99.00th=[ 203], 99.50th=[ 230], 99.90th=[ 284], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 135, per=25.25%, avg=41.66, stdev=27.02, samples=296 iops : min= 1, max= 33, avg= 9.75, stdev= 6.80, samples=296 lat (msec) : 10=2.28%, 20=19.21%, 50=45.64%, 100=21.65%, 250=10.97% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=2.18%, ctx=4942, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179016: Fri Sep 11 08:12:24 2026 read: IOPS=9, BW=39.9KiB/s (40.8kB/s)(6028KiB/151187msec) clat (msec): min=4, max=363, avg=39.69, stdev=38.41 lat (msec): min=4, max=363, avg=39.69, stdev=38.41 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 88], 95.00th=[ 116], | 99.00th=[ 197], 99.50th=[ 224], 99.90th=[ 296], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 143, per=25.34%, avg=40.03, stdev=26.48, samples=293 iops : min= 1, max= 35, avg= 9.33, stdev= 6.65, samples=293 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(6260KiB/151187msec); 0 zone resets clat (msec): min=10, max=929, avg=58.29, stdev=47.37 lat (msec): min=10, max=929, avg=58.29, stdev=47.37 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 67], 80.00th=[ 86], 90.00th=[ 115], 95.00th=[ 138], | 99.00th=[ 211], 99.50th=[ 253], 99.90th=[ 435], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 120, per=25.04%, avg=41.32, stdev=26.44, samples=295 iops : min= 1, max= 30, avg= 9.66, stdev= 6.65, samples=295 lat (msec) : 10=2.08%, 20=18.88%, 50=46.39%, 100=21.48%, 250=10.81% lat (msec) : 500=0.33%, 1000=0.03% cpu : usr=0.06%, sys=2.12%, ctx=4833, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179017: Fri Sep 11 08:12:24 2026 read: IOPS=10, BW=40.1KiB/s (41.1kB/s)(6052KiB/150882msec) clat (msec): min=5, max=294, avg=39.07, stdev=36.87 lat (msec): min=5, max=294, avg=39.07, stdev=36.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 57], 90.00th=[ 91], 95.00th=[ 116], | 99.00th=[ 190], 99.50th=[ 224], 99.90th=[ 245], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 143, per=25.78%, avg=40.74, stdev=28.35, samples=289 iops : min= 1, max= 35, avg= 9.52, stdev= 7.12, samples=289 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6236KiB/150882msec); 0 zone resets clat (msec): min=10, max=931, avg=58.77, stdev=47.23 lat (msec): min=10, max=931, avg=58.78, stdev=47.22 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 44], 60.00th=[ 53], | 70.00th=[ 68], 80.00th=[ 89], 90.00th=[ 114], 95.00th=[ 144], | 99.00th=[ 205], 99.50th=[ 230], 99.90th=[ 363], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 120, per=24.71%, avg=40.77, stdev=26.30, samples=297 iops : min= 1, max= 30, avg= 9.52, stdev= 6.62, samples=297 lat (msec) : 10=2.70%, 20=19.04%, 50=45.41%, 100=21.26%, 250=11.39% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=2.10%, ctx=4863, 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=158KiB/s (162kB/s), 39.3KiB/s-40.1KiB/s (40.2kB/s-41.1kB/s), io=23.4MiB (24.6MB), run=150882-151922msec WRITE: bw=165KiB/s (169kB/s), 41.3KiB/s-41.0KiB/s (42.3kB/s-42.0kB/s), io=24.6MiB (25.7MB), run=150882-151922msec 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=179056: Fri Sep 11 08:13:04 2026 read: IOPS=12, BW=198KiB/s (203kB/s)(5920KiB/29926msec) clat (usec): min=38, max=172673, avg=43974.82, stdev=29985.69 lat (usec): min=38, max=172675, avg=43985.50, stdev=29983.92 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 77], 10.00th=[ 247], 20.00th=[ 23725], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 39584], 60.00th=[ 44827], | 70.00th=[ 52167], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[103285], | 99.00th=[143655], 99.50th=[173016], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 372, per=25.07%, avg=193.76, stdev=67.14, samples=58 iops : min= 1, max= 23, avg=11.33, stdev= 4.26, samples=58 write: IOPS=13, BW=213KiB/s (218kB/s)(6368KiB/29926msec); 0 zone resets clat (usec): min=1591, max=178887, avg=33907.01, stdev=32679.33 lat (usec): min=1593, max=178890, avg=33914.17, stdev=32675.94 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2474], 10.00th=[ 3720], 20.00th=[ 6390], | 30.00th=[ 10159], 40.00th=[ 16450], 50.00th=[ 24249], 60.00th=[ 32637], | 70.00th=[ 42730], 80.00th=[ 56886], 90.00th=[ 79168], 95.00th=[109577], | 99.00th=[139461], 99.50th=[160433], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 382, per=25.86%, avg=210.50, stdev=81.15, samples=58 iops : min= 1, max= 23, avg=12.38, stdev= 5.15, samples=58 lat (usec) : 50=0.26%, 100=3.26%, 250=1.30%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.04%, 4=5.21%, 10=9.38%, 20=10.55%, 50=40.36% lat (msec) : 100=22.66%, 250=5.73% cpu : usr=0.08%, sys=6.66%, ctx=1726, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179057: Fri Sep 11 08:13:04 2026 read: IOPS=11, BW=186KiB/s (190kB/s)(5744KiB/30957msec) clat (usec): min=48, max=161575, avg=44481.26, stdev=27954.42 lat (usec): min=48, max=161576, avg=44483.38, stdev=27954.18 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 78], 10.00th=[ 13042], 20.00th=[ 24511], | 30.00th=[ 29230], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 47449], | 70.00th=[ 55837], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[130548], 99.50th=[152044], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 31, max= 414, per=24.36%, avg=188.28, stdev=77.09, samples=60 iops : min= 1, max= 25, avg=11.00, stdev= 4.86, samples=60 write: IOPS=13, BW=211KiB/s (216kB/s)(6544KiB/30957msec); 0 zone resets clat (usec): min=1594, max=285672, avg=36100.55, stdev=36272.57 lat (usec): min=1595, max=285673, avg=36104.39, stdev=36273.18 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2606], 10.00th=[ 4047], 20.00th=[ 6915], | 30.00th=[ 11076], 40.00th=[ 19268], 50.00th=[ 26870], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 57934], 90.00th=[ 81265], 95.00th=[109577], | 99.00th=[147850], 99.50th=[206570], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 63, max= 504, per=25.94%, avg=211.18, stdev=90.98, samples=61 iops : min= 3, max= 31, avg=12.44, stdev= 5.79, samples=61 lat (usec) : 50=0.13%, 100=2.99%, 250=0.52%, 500=0.13% lat (msec) : 2=1.17%, 4=4.17%, 10=9.77%, 20=10.16%, 50=39.84% lat (msec) : 100=25.78%, 250=5.21%, 500=0.13% cpu : usr=0.08%, sys=6.60%, ctx=1792, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179058: Fri Sep 11 08:13:04 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6256KiB/30941msec) clat (usec): min=45, max=222653, avg=44407.48, stdev=28341.82 lat (usec): min=45, max=222655, avg=44409.02, stdev=28341.84 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 92], 10.00th=[ 15139], 20.00th=[ 23725], | 30.00th=[ 28967], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 47973], | 70.00th=[ 54789], 80.00th=[ 63177], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[141558], 99.50th=[160433], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 63, max= 350, per=25.97%, avg=200.72, stdev=71.81, samples=60 iops : min= 3, max= 21, avg=11.77, stdev= 4.49, samples=60 write: IOPS=12, BW=195KiB/s (200kB/s)(6032KiB/30941msec); 0 zone resets clat (usec): min=1517, max=178803, avg=35524.03, stdev=33200.83 lat (usec): min=1518, max=178807, avg=35536.51, stdev=33207.06 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2376], 10.00th=[ 3752], 20.00th=[ 6063], | 30.00th=[ 11076], 40.00th=[ 19792], 50.00th=[ 27132], 60.00th=[ 35914], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 81265], 95.00th=[111674], | 99.00th=[145753], 99.50th=[160433], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 477, per=23.50%, avg=191.25, stdev=83.03, samples=60 iops : min= 1, max= 29, avg=11.15, stdev= 5.22, samples=60 lat (usec) : 50=0.13%, 100=2.60%, 250=1.30%, 500=0.26% lat (msec) : 2=1.69%, 4=3.78%, 10=8.59%, 20=9.51%, 50=41.02% lat (msec) : 100=26.56%, 250=4.56% cpu : usr=0.09%, sys=6.66%, ctx=1910, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179059: Fri Sep 11 08:13:04 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6032KiB/29839msec) clat (usec): min=54, max=233385, avg=42433.55, stdev=29906.05 lat (usec): min=55, max=233385, avg=42446.64, stdev=29919.74 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 76], 10.00th=[ 11600], 20.00th=[ 23200], | 30.00th=[ 29230], 40.00th=[ 32113], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 49021], 80.00th=[ 59507], 90.00th=[ 79168], 95.00th=[ 87557], | 99.00th=[164627], 99.50th=[221250], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 351, per=26.48%, avg=204.72, stdev=75.85, samples=57 iops : min= 1, max= 21, avg=12.02, stdev= 4.83, samples=57 write: IOPS=13, BW=210KiB/s (215kB/s)(6256KiB/29839msec); 0 zone resets clat (usec): min=1744, max=216618, avg=35116.68, stdev=35815.78 lat (usec): min=1746, max=216621, avg=35128.92, stdev=35812.88 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 2966], 10.00th=[ 4178], 20.00th=[ 6783], | 30.00th=[ 10945], 40.00th=[ 17171], 50.00th=[ 23462], 60.00th=[ 30278], | 70.00th=[ 41681], 80.00th=[ 61080], 90.00th=[ 82314], 95.00th=[ 98042], | 99.00th=[185598], 99.50th=[214959], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 384, per=25.78%, avg=209.86, stdev=78.66, samples=58 iops : min= 1, max= 24, avg=12.34, stdev= 4.98, samples=58 lat (usec) : 100=3.12%, 250=1.04%, 500=0.26%, 750=0.26% lat (msec) : 2=0.52%, 4=4.43%, 10=8.72%, 20=12.24%, 50=42.58% lat (msec) : 100=22.66%, 250=4.17% cpu : usr=0.09%, sys=6.86%, ctx=1802, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=774KiB/s (792kB/s), 186KiB/s-202KiB/s (190kB/s-207kB/s), io=23.4MiB (24.5MB), run=29839-30957msec WRITE: bw=814KiB/s (834kB/s), 195KiB/s-213KiB/s (200kB/s-218kB/s), io=24.6MiB (25.8MB), run=29839-30957msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179061: Fri Sep 11 08:13:16 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(5920KiB/42654msec) clat (msec): min=6, max=312, avg=44.76, stdev=40.17 lat (msec): min=6, max=312, avg=44.76, stdev=40.17 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 92], 95.00th=[ 123], | 99.00th=[ 224], 99.50th=[ 247], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 445, per=24.45%, avg=137.15, stdev=80.15, samples=84 iops : min= 1, max= 27, avg= 7.80, stdev= 5.02, samples=84 write: IOPS=9, BW=149KiB/s (153kB/s)(6368KiB/42654msec); 0 zone resets clat (msec): min=12, max=253, avg=64.86, stdev=39.61 lat (msec): min=12, max=253, avg=64.87, stdev=39.61 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 92], 90.00th=[ 123], 95.00th=[ 150], | 99.00th=[ 201], 99.50th=[ 226], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 31, max= 383, per=25.46%, avg=150.20, stdev=77.49, samples=83 iops : min= 1, max= 23, avg= 8.61, stdev= 4.83, samples=83 lat (msec) : 10=1.04%, 20=10.68%, 50=48.31%, 100=27.60%, 250=12.11% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.21%, ctx=1279, 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=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=179062: Fri Sep 11 08:13:16 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(5744KiB/42536msec) clat (msec): min=7, max=230, avg=43.87, stdev=36.07 lat (msec): min=7, max=230, avg=43.87, stdev=36.07 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 87], 95.00th=[ 120], | 99.00th=[ 201], 99.50th=[ 215], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 27, max= 445, per=24.40%, avg=136.88, stdev=90.51, samples=83 iops : min= 1, max= 27, avg= 7.76, stdev= 5.65, samples=83 write: IOPS=9, BW=154KiB/s (158kB/s)(6544KiB/42536msec); 0 zone resets clat (msec): min=13, max=342, avg=64.74, stdev=40.03 lat (msec): min=13, max=342, avg=64.75, stdev=40.02 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 120], 95.00th=[ 138], | 99.00th=[ 197], 99.50th=[ 211], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 382, per=25.97%, avg=153.21, stdev=77.84, samples=84 iops : min= 1, max= 23, avg= 8.81, stdev= 4.85, samples=84 lat (msec) : 10=0.52%, 20=9.64%, 50=50.52%, 100=26.04%, 250=13.15% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=2.21%, ctx=1298, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179063: Fri Sep 11 08:13:16 2026 read: IOPS=9, BW=149KiB/s (152kB/s)(6256KiB/42068msec) clat (msec): min=8, max=293, avg=45.47, stdev=39.02 lat (msec): min=8, max=293, avg=45.47, stdev=39.02 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 64], 90.00th=[ 97], 95.00th=[ 118], | 99.00th=[ 234], 99.50th=[ 262], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 415, per=26.57%, avg=149.07, stdev=91.87, samples=83 iops : min= 1, max= 25, avg= 8.54, stdev= 5.70, samples=83 write: IOPS=8, BW=143KiB/s (147kB/s)(6032KiB/42068msec); 0 zone resets clat (msec): min=15, max=242, avg=63.80, stdev=38.69 lat (msec): min=15, max=242, avg=63.80, stdev=38.69 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 62], | 70.00th=[ 73], 80.00th=[ 94], 90.00th=[ 121], 95.00th=[ 142], | 99.00th=[ 188], 99.50th=[ 222], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 30, max= 351, per=24.09%, avg=142.14, stdev=75.49, samples=83 iops : min= 1, max= 21, avg= 8.11, stdev= 4.71, samples=83 lat (msec) : 10=0.52%, 20=9.77%, 50=49.61%, 100=27.08%, 250=12.63% lat (msec) : 500=0.39% cpu : usr=0.07%, sys=2.24%, ctx=1305, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179064: Fri Sep 11 08:13:16 2026 read: IOPS=9, BW=144KiB/s (148kB/s)(6032KiB/41828msec) clat (msec): min=7, max=287, avg=42.79, stdev=33.99 lat (msec): min=7, max=287, avg=42.79, stdev=33.99 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 61], 90.00th=[ 90], 95.00th=[ 116], | 99.00th=[ 165], 99.50th=[ 201], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 415, per=25.78%, avg=144.62, stdev=86.64, samples=81 iops : min= 1, max= 25, avg= 8.26, stdev= 5.40, samples=81 write: IOPS=9, BW=150KiB/s (153kB/s)(6256KiB/41828msec); 0 zone resets clat (msec): min=16, max=341, avg=65.41, stdev=43.02 lat (msec): min=16, max=341, avg=65.41, stdev=43.02 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 75], 80.00th=[ 92], 90.00th=[ 122], 95.00th=[ 153], | 99.00th=[ 213], 99.50th=[ 264], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 413, per=25.25%, avg=148.95, stdev=79.64, samples=82 iops : min= 1, max= 25, avg= 8.54, stdev= 4.95, samples=82 lat (msec) : 10=0.65%, 20=11.20%, 50=49.48%, 100=26.04%, 250=12.24% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=2.15%, ctx=1265, 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=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=562KiB/s (575kB/s), 135KiB/s-149KiB/s (138kB/s-152kB/s), io=23.4MiB (24.5MB), run=41828-42654msec WRITE: bw=591KiB/s (605kB/s), 143KiB/s-154KiB/s (147kB/s-158kB/s), io=24.6MiB (25.8MB), run=41828-42654msec 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=179076: Fri Sep 11 08:13:33 2026 read: IOPS=2, BW=2188KiB/s (2241kB/s)(7168KiB/3276msec) clat (usec): min=1867, max=257266, avg=171834.07, stdev=86662.19 lat (usec): min=1867, max=257268, avg=171835.99, stdev=86662.38 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 1860], 10.00th=[ 1860], 20.00th=[145753], | 30.00th=[162530], 40.00th=[162530], 50.00th=[166724], 60.00th=[223347], | 70.00th=[223347], 80.00th=[246416], 90.00th=[256902], 95.00th=[256902], | 99.00th=[256902], 99.50th=[256902], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 1924, max= 3946, per=68.05%, avg=2821.25, stdev=1028.75, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1563KiB/s (1600kB/s)(5120KiB/3276msec); 0 zone resets clat (msec): min=196, max=638, avg=386.86, stdev=187.26 lat (msec): min=196, max=638, avg=387.00, stdev=187.20 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 477], 80.00th=[ 477], 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= 1973, max= 3785, per=44.79%, avg=2600.33, stdev=1026.55, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 2=8.33%, 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=22.11%, ctx=225, 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=179077: Fri Sep 11 08:13:33 2026 read: IOPS=0, BW=415KiB/s (425kB/s)(2048KiB/4939msec) clat (msec): min=202, max=294, avg=248.63, stdev=65.23 lat (msec): min=202, max=294, avg=248.63, stdev=65.23 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 203], 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= 1700, max= 1973, per=44.30%, avg=1836.50, stdev=193.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2073KiB/s (2123kB/s)(10.0MiB/4939msec); 0 zone resets clat (msec): min=135, max=942, avg=420.95, stdev=283.12 lat (msec): min=135, max=942, avg=421.11, stdev=283.18 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 190], 40.00th=[ 288], 50.00th=[ 292], 60.00th=[ 317], | 70.00th=[ 502], 80.00th=[ 542], 90.00th=[ 844], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1892, max= 6144, per=62.07%, avg=3603.00, stdev=1740.16, samples=5 iops : min= 1, max= 6, avg= 2.80, stdev= 2.05, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=18.79%, ctx=228, 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=179078: Fri Sep 11 08:13:33 2026 read: IOPS=1, BW=1442KiB/s (1477kB/s)(6144KiB/4260msec) clat (usec): min=891, max=737159, avg=228853.37, stdev=273229.00 lat (usec): min=893, max=737161, avg=228854.88, stdev=273228.81 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 889], 10.00th=[ 889], 20.00th=[ 1352], | 30.00th=[ 1352], 40.00th=[166724], 50.00th=[166724], 60.00th=[173016], | 70.00th=[295699], 80.00th=[295699], 90.00th=[734004], 95.00th=[734004], | 99.00th=[734004], 99.50th=[734004], 99.90th=[734004], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 2043, max= 4087, per=81.01%, avg=3358.67, stdev=1141.58, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1442KiB/s (1477kB/s)(6144KiB/4260msec); 0 zone resets clat (msec): min=135, max=941, avg=450.74, stdev=342.96 lat (msec): min=135, max=943, avg=451.03, stdev=343.24 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 550], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1924, max= 3330, per=38.98%, avg=2262.60, stdev=598.81, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=8.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=14.77%, ctx=254, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179079: Fri Sep 11 08:13:33 2026 read: IOPS=1, BW=1458KiB/s (1493kB/s)(5120KiB/3512msec) clat (usec): min=613, max=415080, avg=195804.23, stdev=190268.66 lat (usec): min=614, max=415081, avg=195805.58, stdev=190268.68 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 1434], 40.00th=[ 1434], 50.00th=[225444], 60.00th=[225444], | 70.00th=[337642], 80.00th=[337642], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 1892, max= 3946, per=63.36%, avg=2627.00, stdev=1144.78, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=2041KiB/s (2090kB/s)(7168KiB/3512msec); 0 zone resets clat (msec): min=211, max=662, avg=358.38, stdev=164.50 lat (msec): min=211, max=662, avg=358.71, stdev=164.30 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 228], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 313], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 493], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1771, max= 2043, per=33.36%, avg=1936.80, stdev=101.92, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=19.03%, ctx=207, 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=4147KiB/s (4246kB/s), 415KiB/s-2188KiB/s (425kB/s-2241kB/s), io=20.0MiB (20.0MB), run=3276-4939msec WRITE: bw=5805KiB/s (5945kB/s), 1442KiB/s-2073KiB/s (1477kB/s-2123kB/s), io=28.0MiB (29.4MB), run=3276-4939msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179081: Fri Sep 11 08:13:33 2026 read: IOPS=1, BW=1778KiB/s (1821kB/s)(7168KiB/4031msec) clat (msec): min=125, max=985, avg=305.45, stdev=311.44 lat (msec): min=125, max=985, avg=305.45, stdev=311.44 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 129], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 159], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 368], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1503, max= 4079, per=63.91%, avg=2910.00, stdev=1331.53, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1270KiB/s (1301kB/s)(5120KiB/4031msec); 0 zone resets clat (msec): min=117, max=568, avg=348.78, stdev=170.95 lat (msec): min=117, max=568, avg=348.95, stdev=171.02 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1976, max= 4071, per=42.31%, avg=2696.67, stdev=1190.68, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.05%, sys=7.59%, ctx=99, 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=179082: Fri Sep 11 08:13:33 2026 read: IOPS=0, BW=455KiB/s (466kB/s)(2048KiB/4498msec) clat (msec): min=164, max=893, avg=528.66, stdev=515.59 lat (msec): min=164, max=893, avg=528.66, stdev=515.59 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 2035, max= 2039, per=44.74%, avg=2037.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2277KiB/s (2331kB/s)(10.0MiB/4498msec); 0 zone resets clat (msec): min=101, max=634, avg=323.26, stdev=199.77 lat (msec): min=101, max=634, avg=323.38, stdev=199.77 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 165], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 236], 60.00th=[ 243], | 70.00th=[ 268], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1976, max= 6119, per=50.92%, avg=3245.60, stdev=1832.71, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=58.33%, 500=8.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=7.72%, ctx=127, 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=179083: Fri Sep 11 08:13:33 2026 read: IOPS=1, BW=1508KiB/s (1544kB/s)(6144KiB/4075msec) clat (msec): min=78, max=448, avg=176.74, stdev=141.96 lat (msec): min=78, max=448, avg=176.74, stdev=141.96 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 86], | 30.00th=[ 86], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 140], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 2035, max= 4087, per=74.68%, avg=3400.33, stdev=1182.42, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1508KiB/s (1544kB/s)(6144KiB/4075msec); 0 zone resets clat (msec): min=126, max=830, avg=391.11, stdev=245.22 lat (msec): min=126, max=830, avg=391.24, stdev=245.17 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 368], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2007, max= 2043, per=31.89%, avg=2032.60, stdev=14.59, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=25.00%, 250=33.33%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=6.70%, ctx=100, 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=179084: Fri Sep 11 08:13:33 2026 read: IOPS=1, BW=1214KiB/s (1243kB/s)(5120KiB/4218msec) clat (msec): min=92, max=363, avg=167.59, stdev=111.74 lat (msec): min=92, max=363, avg=167.59, stdev=111.74 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2035, max= 6131, per=89.68%, avg=4083.00, stdev=2896.31, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1699KiB/s (1740kB/s)(7168KiB/4218msec); 0 zone resets clat (msec): min=140, max=969, avg=392.35, stdev=286.91 lat (msec): min=140, max=969, avg=392.46, stdev=286.92 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 153], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 498], 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= 2007, max= 6083, per=44.57%, avg=2840.60, stdev=1812.61, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, 1000=8.33% cpu : usr=0.02%, sys=7.33%, ctx=135, 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=4553KiB/s (4662kB/s), 455KiB/s-1778KiB/s (466kB/s-1821kB/s), io=20.0MiB (20.0MB), run=4031-4498msec WRITE: bw=6374KiB/s (6527kB/s), 1270KiB/s-2277KiB/s (1301kB/s-2331kB/s), io=28.0MiB (29.4MB), run=4031-4498msec 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=179091: Fri Sep 11 08:13:47 2026 read: IOPS=1, BW=4417KiB/s (4523kB/s)(12.0MiB/2782msec) clat (msec): min=675, max=1149, avg=910.50, stdev=237.04 lat (msec): min=675, max=1149, avg=910.50, stdev=237.04 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 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= 7772, max= 8159, per=100.00%, avg=7965.50, stdev=273.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=16.47%, ctx=390, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179092: Fri Sep 11 08:13:47 2026 read: IOPS=0, BW=1253KiB/s (1283kB/s)(4096KiB/3268msec) clat (nsec): min=887447k, max=887447k, avg=887447350.00, stdev= 0.00 lat (nsec): min=887461k, max=887461k, avg=887460825.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2507KiB/s (2567kB/s)(8192KiB/3268msec); 0 zone resets clat (msec): min=983, max=1336, avg=1160.12, stdev=249.14 lat (msec): min=986, max=1336, avg=1161.60, stdev=247.69 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7772, max= 7772, per=77.52%, avg=7772.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.03%, sys=8.63%, ctx=222, 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=179093: Fri Sep 11 08:13:47 2026 write: IOPS=1, BW=5135KiB/s (5258kB/s)(12.0MiB/2393msec); 0 zone resets clat (msec): min=477, max=1169, avg=780.94, stdev=353.40 lat (msec): min=478, max=1169, avg=781.46, stdev=353.30 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 5497, max= 8159, per=68.10%, avg=6828.00, stdev=1882.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.08%, sys=7.36%, ctx=73, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179094: Fri Sep 11 08:13:47 2026 write: IOPS=1, BW=5461KiB/s (5592kB/s)(12.0MiB/2250msec); 0 zone resets clat (msec): min=423, max=1103, avg=738.86, stdev=343.06 lat (msec): min=423, max=1104, avg=739.25, stdev=343.03 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7772, max= 8159, per=79.45%, avg=7965.50, stdev=273.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.07%, ctx=52, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5013KiB/s (5134kB/s), 1253KiB/s-4417KiB/s (1283kB/s-4523kB/s), io=16.0MiB (16.8MB), run=2782-3268msec WRITE: bw=9.79MiB/s (10.3MB/s), 2507KiB/s-5461KiB/s (2567kB/s-5592kB/s), io=32.0MiB (33.6MB), run=2250-3268msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179096: Fri Sep 11 08:13:47 2026 read: IOPS=1, BW=4723KiB/s (4836kB/s)(12.0MiB/2602msec) clat (msec): min=620, max=1028, avg=866.89, stdev=217.08 lat (msec): min=620, max=1028, avg=866.89, stdev=217.08 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 8015, max= 8062, per=100.00%, avg=8038.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.50%, ctx=51, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179097: Fri Sep 11 08:13:47 2026 read: IOPS=0, BW=1131KiB/s (1158kB/s)(4096KiB/3621msec) clat (nsec): min=1204.7M, max=1204.7M, avg=1204684954.00, stdev= 0.00 lat (nsec): min=1204.7M, max=1204.7M, avg=1204687755.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2262KiB/s (2317kB/s)(8192KiB/3621msec); 0 zone resets clat (msec): min=513, max=1900, avg=1207.16, stdev=980.62 lat (msec): min=514, max=1901, avg=1207.67, stdev=980.56 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 1905], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8126, max= 8126, per=89.80%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.26%, ctx=38, 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=179098: Fri Sep 11 08:13:47 2026 write: IOPS=0, BW=3440KiB/s (3523kB/s)(12.0MiB/3572msec); 0 zone resets clat (msec): min=336, max=1706, avg=1188.90, stdev=743.81 lat (msec): min=337, max=1707, avg=1189.98, stdev=744.14 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 1519], 50.00th=[ 1519], 60.00th=[ 1519], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8015, max= 8015, per=88.57%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.25%, ctx=39, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179099: Fri Sep 11 08:13:47 2026 write: IOPS=1, BW=4249KiB/s (4351kB/s)(12.0MiB/2892msec); 0 zone resets clat (msec): min=233, max=1350, avg=962.54, stdev=631.60 lat (msec): min=234, max=1353, avg=963.75, stdev=631.82 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8175, max= 8175, per=90.34%, avg=8175.00, 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=5.36%, ctx=35, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4525KiB/s (4633kB/s), 1131KiB/s-4723KiB/s (1158kB/s-4836kB/s), io=16.0MiB (16.8MB), run=2602-3621msec WRITE: bw=9049KiB/s (9267kB/s), 2262KiB/s-4249KiB/s (2317kB/s-4351kB/s), io=32.0MiB (33.6MB), run=2892-3621msec