== sanity test 398b: DIO and buffer IO race ============== 06:56:32 (1788605792) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.69798 s, 10.7 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=148994: Sat Sep 5 06:58:55 2026 read: IOPS=11, BW=47.7KiB/s (48.9kB/s)(5992KiB/125580msec) clat (usec): min=32, max=729956, avg=40908.92, stdev=35626.89 lat (usec): min=32, max=729957, avg=40913.26, stdev=35633.00 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 359], 20.00th=[ 18220], | 30.00th=[ 23987], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 49546], 80.00th=[ 60556], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[143655], 99.50th=[162530], 99.90th=[333448], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 111, per=25.12%, avg=47.47, stdev=20.13, samples=245 iops : min= 1, max= 27, avg=11.25, stdev= 5.08, samples=245 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6296KiB/125580msec); 0 zone resets clat (usec): min=862, max=379217, avg=40755.60, stdev=42378.47 lat (usec): min=863, max=379217, avg=40758.77, stdev=42378.09 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1287], 10.00th=[ 1532], 20.00th=[ 4293], | 30.00th=[ 8717], 40.00th=[ 19006], 50.00th=[ 29754], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[122160], | 99.00th=[181404], 99.50th=[198181], 99.90th=[354419], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 6, max= 135, per=25.14%, avg=49.78, stdev=23.25, samples=246 iops : min= 1, max= 33, avg=11.83, stdev= 5.85, samples=246 lat (usec) : 50=0.78%, 100=3.81%, 250=0.20%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=6.38%, 4=3.48%, 10=6.51%, 20=10.64%, 50=36.26% lat (msec) : 100=24.54%, 250=6.80%, 500=0.23%, 750=0.03% cpu : usr=0.09%, sys=5.35%, ctx=6465, 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=148995: Sat Sep 5 06:58:55 2026 read: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5940KiB/125356msec) clat (usec): min=31, max=265751, avg=41681.47, stdev=32044.91 lat (usec): min=31, max=265751, avg=41683.86, stdev=32044.57 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 799], 20.00th=[ 18220], | 30.00th=[ 23462], 40.00th=[ 28181], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 51643], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[139461], 99.50th=[183501], 99.90th=[254804], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 6, max= 111, per=24.98%, avg=47.21, stdev=20.59, samples=245 iops : min= 1, max= 27, avg=11.18, stdev= 5.18, samples=245 write: IOPS=12, BW=50.6KiB/s (51.9kB/s)(6348KiB/125356msec); 0 zone resets clat (usec): min=839, max=326610, avg=39871.54, stdev=41933.57 lat (usec): min=840, max=326611, avg=39874.16, stdev=41933.85 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1270], 10.00th=[ 1500], 20.00th=[ 4228], | 30.00th=[ 8586], 40.00th=[ 17695], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[ 91751], 95.00th=[114820], | 99.00th=[204473], 99.50th=[229639], 99.90th=[308282], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 119, per=25.33%, avg=50.15, stdev=21.04, samples=246 iops : min= 1, max= 29, avg=11.92, stdev= 5.29, samples=246 lat (usec) : 50=0.55%, 100=3.97%, 250=0.20%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=6.61%, 4=3.29%, 10=6.80%, 20=10.97%, 50=35.84% lat (msec) : 100=24.90%, 250=6.41%, 500=0.13% cpu : usr=0.09%, sys=5.46%, ctx=6432, 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=148996: Sat Sep 5 06:58:55 2026 read: IOPS=11, BW=47.6KiB/s (48.8kB/s)(6028KiB/126515msec) clat (usec): min=32, max=319902, avg=39768.80, stdev=32065.42 lat (usec): min=32, max=319903, avg=39771.76, stdev=32065.39 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 235], 20.00th=[ 17957], | 30.00th=[ 22938], 40.00th=[ 27657], 50.00th=[ 32637], 60.00th=[ 38536], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[154141], 99.50th=[183501], 99.90th=[267387], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 125, per=25.31%, avg=47.83, stdev=21.57, samples=245 iops : min= 1, max= 31, avg=11.34, stdev= 5.44, samples=245 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6260KiB/126515msec); 0 zone resets clat (usec): min=908, max=347540, avg=42431.07, stdev=44351.96 lat (usec): min=908, max=347542, avg=42435.62, stdev=44350.13 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1303], 10.00th=[ 1745], 20.00th=[ 5014], | 30.00th=[ 10421], 40.00th=[ 21103], 50.00th=[ 31327], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[128451], | 99.00th=[198181], 99.50th=[235930], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 120, per=24.64%, avg=48.80, stdev=22.28, samples=249 iops : min= 1, max= 30, avg=11.58, stdev= 5.58, samples=249 lat (usec) : 50=0.72%, 100=3.97%, 250=0.23%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.76%, 4=3.09%, 10=6.84%, 20=10.74%, 50=37.60% lat (msec) : 100=24.06%, 250=6.48%, 500=0.29% cpu : usr=0.07%, sys=5.14%, ctx=6394, 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=148997: Sat Sep 5 06:58:55 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6052KiB/125776msec) clat (usec): min=32, max=446019, avg=40315.29, stdev=32237.43 lat (usec): min=32, max=446020, avg=40319.22, stdev=32236.05 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 4883], 20.00th=[ 18482], | 30.00th=[ 24511], 40.00th=[ 29230], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 49021], 80.00th=[ 59507], 90.00th=[ 73925], 95.00th=[ 92799], | 99.00th=[139461], 99.50th=[187696], 99.90th=[283116], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 7, max= 118, per=25.52%, avg=48.23, stdev=21.04, samples=245 iops : min= 1, max= 29, avg=11.43, stdev= 5.28, samples=245 write: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6236KiB/125776msec); 0 zone resets clat (usec): min=835, max=474880, avg=41461.79, stdev=43678.27 lat (usec): min=836, max=474883, avg=41465.40, stdev=43676.91 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1303], 10.00th=[ 1549], 20.00th=[ 4228], | 30.00th=[ 9110], 40.00th=[ 20579], 50.00th=[ 30540], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[123208], | 99.00th=[175113], 99.50th=[210764], 99.90th=[425722], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 7, max= 119, per=24.87%, avg=49.25, stdev=20.35, samples=247 iops : min= 1, max= 29, avg=11.70, stdev= 5.12, samples=247 lat (usec) : 50=0.78%, 100=3.65%, 250=0.23%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.96%, 4=3.84%, 10=6.67%, 20=9.54%, 50=37.83% lat (msec) : 100=24.61%, 250=6.28%, 500=0.33% cpu : usr=0.07%, sys=5.57%, ctx=6563, 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=190KiB/s (194kB/s), 47.4KiB/s-48.1KiB/s (48.5kB/s-49.3kB/s), io=23.4MiB (24.6MB), run=125356-126515msec WRITE: bw=199KiB/s (203kB/s), 49.5KiB/s-50.6KiB/s (50.7kB/s-51.9kB/s), io=24.6MiB (25.7MB), run=125356-126515msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148989: Sat Sep 5 07:01:05 2026 read: IOPS=5, BW=23.3KiB/s (23.9kB/s)(5992KiB/257183msec) clat (msec): min=5, max=901, avg=33.40, stdev=39.94 lat (msec): min=5, max=901, avg=33.40, stdev=39.94 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 72], 95.00th=[ 99], | 99.00th=[ 174], 99.50th=[ 213], 99.90th=[ 330], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 103, per=28.31%, avg=26.32, stdev=18.03, samples=441 iops : min= 1, max= 25, avg= 5.97, stdev= 4.57, samples=441 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6296KiB/257183msec); 0 zone resets clat (msec): min=25, max=711, avg=131.30, stdev=72.40 lat (msec): min=25, max=711, avg=131.30, stdev=72.40 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 112], 60.00th=[ 131], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 226], 95.00th=[ 266], | 99.00th=[ 397], 99.50th=[ 468], 99.90th=[ 617], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 64, per=25.02%, avg=24.27, stdev=12.20, samples=501 iops : min= 1, max= 16, avg= 5.45, stdev= 3.12, samples=501 lat (msec) : 10=4.72%, 20=18.16%, 50=19.08%, 100=25.49%, 250=29.20% lat (msec) : 500=3.16%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.31%, ctx=5216, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148990: Sat Sep 5 07:01:05 2026 read: IOPS=5, BW=23.0KiB/s (23.6kB/s)(5940KiB/257697msec) clat (msec): min=5, max=830, avg=33.30, stdev=38.44 lat (msec): min=5, max=830, avg=33.30, stdev=38.44 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 96], | 99.00th=[ 163], 99.50th=[ 190], 99.90th=[ 321], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 118, per=27.76%, avg=25.82, stdev=18.06, samples=445 iops : min= 1, max= 29, avg= 5.84, stdev= 4.58, samples=445 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6348KiB/257697msec); 0 zone resets clat (msec): min=27, max=710, avg=130.93, stdev=71.85 lat (msec): min=27, max=710, avg=130.93, stdev=71.85 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 75], | 30.00th=[ 87], 40.00th=[ 100], 50.00th=[ 113], 60.00th=[ 128], | 70.00th=[ 150], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 268], | 99.00th=[ 380], 99.50th=[ 451], 99.90th=[ 634], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 64, per=25.02%, avg=24.27, stdev=12.10, samples=505 iops : min= 1, max= 16, avg= 5.45, stdev= 3.10, samples=505 lat (msec) : 10=4.59%, 20=17.81%, 50=18.95%, 100=25.81%, 250=29.39% lat (msec) : 500=3.29%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5318, 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=148991: Sat Sep 5 07:01:05 2026 read: IOPS=5, BW=23.6KiB/s (24.2kB/s)(6028KiB/255570msec) clat (msec): min=4, max=352, avg=34.25, stdev=33.88 lat (msec): min=4, max=352, avg=34.25, stdev=33.88 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 102], | 99.00th=[ 161], 99.50th=[ 182], 99.90th=[ 326], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 111, per=27.87%, avg=25.92, stdev=18.21, samples=450 iops : min= 1, max= 27, avg= 5.87, stdev= 4.58, samples=450 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6260KiB/255570msec); 0 zone resets clat (msec): min=28, max=932, avg=130.02, stdev=73.45 lat (msec): min=28, max=932, avg=130.03, stdev=73.44 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 54], 10.00th=[ 64], 20.00th=[ 75], | 30.00th=[ 87], 40.00th=[ 99], 50.00th=[ 112], 60.00th=[ 128], | 70.00th=[ 148], 80.00th=[ 176], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 372], 99.50th=[ 422], 99.90th=[ 718], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 72, per=24.98%, avg=24.23, stdev=12.52, samples=498 iops : min= 1, max= 18, avg= 5.44, stdev= 3.20, samples=498 lat (msec) : 10=4.26%, 20=18.29%, 50=18.62%, 100=26.30%, 250=29.30% lat (msec) : 500=3.06%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.36%, ctx=5239, 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=148992: Sat Sep 5 07:01:05 2026 read: IOPS=5, BW=23.7KiB/s (24.2kB/s)(6052KiB/255692msec) clat (msec): min=5, max=353, avg=32.69, stdev=33.59 lat (msec): min=5, max=353, avg=32.69, stdev=33.59 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 78], 95.00th=[ 103], | 99.00th=[ 169], 99.50th=[ 188], 99.90th=[ 264], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7, max= 118, per=28.39%, avg=26.40, stdev=18.65, samples=444 iops : min= 1, max= 29, avg= 5.99, stdev= 4.71, samples=444 write: IOPS=6, BW=24.4KiB/s (24.0kB/s)(6236KiB/255692msec); 0 zone resets clat (msec): min=30, max=1038, avg=131.99, stdev=74.42 lat (msec): min=30, max=1038, avg=131.99, stdev=74.42 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 75], | 30.00th=[ 87], 40.00th=[ 100], 50.00th=[ 113], 60.00th=[ 128], | 70.00th=[ 150], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 271], | 99.00th=[ 372], 99.50th=[ 456], 99.90th=[ 531], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 63, per=24.87%, avg=24.12, stdev=12.32, samples=499 iops : min= 1, max= 15, avg= 5.41, stdev= 3.16, samples=499 lat (msec) : 10=5.63%, 20=18.42%, 50=17.58%, 100=25.65%, 250=29.10% lat (msec) : 500=3.48%, 750=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.26%, ctx=5226, 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=93.2KiB/s (95.4kB/s), 23.0KiB/s-23.7KiB/s (23.6kB/s-24.2kB/s), io=23.4MiB (24.6MB), run=255570-257697msec WRITE: bw=97.6KiB/s (99.9kB/s), 24.4KiB/s-24.6KiB/s (24.0kB/s-25.2kB/s), io=24.6MiB (25.7MB), run=255570-257697msec 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=149058: Sat Sep 5 07:01:46 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(5920KiB/32771msec) clat (usec): min=42, max=162897, avg=43094.31, stdev=34500.04 lat (usec): min=42, max=162899, avg=43097.49, stdev=34498.78 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 2540], | 30.00th=[ 22676], 40.00th=[ 32900], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[141558], 99.50th=[145753], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 56, max= 415, per=24.82%, avg=181.20, stdev=77.97, samples=64 iops : min= 3, max= 25, avg=10.59, stdev= 4.89, samples=64 write: IOPS=12, BW=194KiB/s (199kB/s)(6368KiB/32771msec); 0 zone resets clat (usec): min=1533, max=433657, avg=41753.73, stdev=52869.11 lat (usec): min=1535, max=433660, avg=41758.83, stdev=52869.55 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1811], 10.00th=[ 2343], 20.00th=[ 5604], | 30.00th=[ 9372], 40.00th=[ 15270], 50.00th=[ 21365], 60.00th=[ 33817], | 70.00th=[ 49546], 80.00th=[ 68682], 90.00th=[102237], 95.00th=[139461], | 99.00th=[270533], 99.50th=[358613], 99.90th=[434111], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 60, max= 444, per=25.38%, avg=194.92, stdev=90.01, samples=64 iops : min= 3, max= 27, avg=11.48, stdev= 5.59, samples=64 lat (usec) : 50=1.04%, 100=6.77%, 250=1.04%, 500=0.13%, 1000=0.13% lat (msec) : 2=4.82%, 4=3.78%, 10=8.59%, 20=11.72%, 50=28.78% lat (msec) : 100=24.09%, 250=8.46%, 500=0.65% cpu : usr=0.06%, sys=5.14%, ctx=1457, 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=149059: Sat Sep 5 07:01:46 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(5744KiB/31911msec) clat (usec): min=39, max=328522, avg=47355.31, stdev=36745.40 lat (usec): min=39, max=328523, avg=47356.57, stdev=36745.41 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 71], 20.00th=[ 23987], | 30.00th=[ 30540], 40.00th=[ 35390], 50.00th=[ 41681], 60.00th=[ 48497], | 70.00th=[ 60031], 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[162530], 99.50th=[204473], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 28, max= 445, per=24.56%, avg=179.31, stdev=68.36, samples=62 iops : min= 1, max= 27, avg=10.50, stdev= 4.30, samples=62 write: IOPS=12, BW=205KiB/s (210kB/s)(6544KiB/31911msec); 0 zone resets clat (usec): min=1475, max=280919, avg=36135.79, stdev=41174.87 lat (usec): min=1477, max=280920, avg=36140.10, stdev=41173.59 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1762], 10.00th=[ 2024], 20.00th=[ 5145], | 30.00th=[ 8586], 40.00th=[ 12125], 50.00th=[ 20055], 60.00th=[ 33817], | 70.00th=[ 45876], 80.00th=[ 63177], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[181404], 99.50th=[227541], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 30, max= 417, per=26.64%, avg=204.56, stdev=97.42, samples=62 iops : min= 1, max= 26, avg=12.10, stdev= 6.15, samples=62 lat (usec) : 50=0.52%, 100=5.60%, 250=0.26%, 500=0.39% lat (msec) : 2=5.21%, 4=3.39%, 10=9.90%, 20=9.90%, 50=32.42% lat (msec) : 100=25.65%, 250=6.51%, 500=0.26% cpu : usr=0.05%, sys=5.68%, ctx=1507, 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=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=149060: Sat Sep 5 07:01:46 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(6256KiB/31894msec) clat (usec): min=34, max=222826, avg=43237.87, stdev=38491.87 lat (usec): min=34, max=222828, avg=43239.22, stdev=38491.89 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 82], | 30.00th=[ 21890], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 44303], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[108528], | 99.00th=[208667], 99.50th=[219153], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 56, max= 347, per=27.17%, avg=198.35, stdev=76.57, samples=62 iops : min= 3, max= 21, avg=11.68, stdev= 4.84, samples=62 write: IOPS=11, BW=189KiB/s (194kB/s)(6032KiB/31894msec); 0 zone resets clat (usec): min=1045, max=444427, avg=38999.67, stdev=45938.39 lat (usec): min=1045, max=444428, avg=39006.56, stdev=45935.03 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1860], 10.00th=[ 2704], 20.00th=[ 5735], | 30.00th=[ 10028], 40.00th=[ 14746], 50.00th=[ 25035], 60.00th=[ 33162], | 70.00th=[ 47449], 80.00th=[ 65274], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[187696], 99.50th=[304088], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 56, max= 378, per=24.85%, avg=190.85, stdev=75.42, samples=61 iops : min= 3, max= 23, avg=11.23, stdev= 4.71, samples=61 lat (usec) : 50=1.69%, 100=8.85%, 250=1.04%, 750=0.13% lat (msec) : 2=3.26%, 4=5.08%, 10=7.16%, 20=9.77%, 50=31.51% lat (msec) : 100=23.31%, 250=7.94%, 500=0.26% cpu : usr=0.09%, sys=5.45%, ctx=1447, 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=149061: Sat Sep 5 07:01:46 2026 read: IOPS=12, BW=197KiB/s (202kB/s)(6032KiB/30629msec) clat (usec): min=19, max=241868, avg=41925.71, stdev=35486.35 lat (usec): min=19, max=241869, avg=41940.34, stdev=35502.94 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 120], | 30.00th=[ 22676], 40.00th=[ 31065], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 55837], 80.00th=[ 66323], 90.00th=[ 89654], 95.00th=[102237], | 99.00th=[152044], 99.50th=[179307], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 31, max= 320, per=26.82%, avg=195.77, stdev=71.79, samples=60 iops : min= 1, max= 20, avg=11.53, stdev= 4.53, samples=60 write: IOPS=12, BW=204KiB/s (209kB/s)(6256KiB/30629msec); 0 zone resets clat (usec): min=1159, max=318289, avg=37319.21, stdev=41054.80 lat (usec): min=1161, max=318293, avg=37340.48, stdev=41042.31 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1745], 10.00th=[ 2147], 20.00th=[ 5211], | 30.00th=[ 8848], 40.00th=[ 13829], 50.00th=[ 22414], 60.00th=[ 33817], | 70.00th=[ 47449], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[111674], | 99.00th=[198181], 99.50th=[202376], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 31, max= 380, per=26.60%, avg=204.28, stdev=79.52, samples=60 iops : min= 1, max= 23, avg=12.05, stdev= 4.99, samples=60 lat (usec) : 20=0.13%, 50=1.30%, 100=7.94%, 250=0.91%, 500=0.26% lat (usec) : 1000=0.52% lat (msec) : 2=4.43%, 4=3.78%, 10=9.77%, 20=9.11%, 50=29.43% lat (msec) : 100=25.39%, 250=6.90%, 500=0.13% cpu : usr=0.08%, sys=5.44%, ctx=1406, 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=731KiB/s (748kB/s), 180KiB/s-197KiB/s (184kB/s-202kB/s), io=23.4MiB (24.5MB), run=30629-32771msec WRITE: bw=769KiB/s (787kB/s), 189KiB/s-205KiB/s (194kB/s-210kB/s), io=24.6MiB (25.8MB), run=30629-32771msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149063: Sat Sep 5 07:02:26 2026 read: IOPS=5, BW=83.2KiB/s (85.2kB/s)(5920KiB/71191msec) clat (msec): min=5, max=344, avg=40.67, stdev=40.78 lat (msec): min=5, max=344, avg=40.67, stdev=40.78 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 89], 95.00th=[ 140], | 99.00th=[ 197], 99.50th=[ 243], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 383, per=27.76%, avg=93.26, stdev=65.82, samples=123 iops : min= 1, max= 23, avg= 5.07, stdev= 4.17, samples=123 write: IOPS=5, BW=89.4KiB/s (91.6kB/s)(6368KiB/71191msec); 0 zone resets clat (msec): min=42, max=585, avg=140.84, stdev=71.97 lat (msec): min=42, max=585, avg=140.85, stdev=71.97 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 64], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 111], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 182], 90.00th=[ 234], 95.00th=[ 279], | 99.00th=[ 439], 99.50th=[ 460], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 28, max= 218, per=25.82%, avg=91.13, stdev=40.69, samples=136 iops : min= 1, max= 13, avg= 4.94, stdev= 2.65, samples=136 lat (msec) : 10=2.08%, 20=13.28%, 50=23.44%, 100=20.83%, 250=36.20% lat (msec) : 500=4.04%, 750=0.13% cpu : usr=0.04%, sys=1.31%, ctx=1296, 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=149064: Sat Sep 5 07:02:26 2026 read: IOPS=5, BW=80.9KiB/s (82.8kB/s)(5744KiB/71022msec) clat (msec): min=7, max=236, avg=38.84, stdev=38.76 lat (msec): min=7, max=236, avg=38.84, stdev=38.76 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 82], 95.00th=[ 123], | 99.00th=[ 218], 99.50th=[ 224], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 28, max= 352, per=28.93%, avg=97.20, stdev=68.91, samples=116 iops : min= 1, max= 22, avg= 5.34, stdev= 4.44, samples=116 write: IOPS=5, BW=92.1KiB/s (94.4kB/s)(6544KiB/71022msec); 0 zone resets clat (msec): min=44, max=429, avg=139.40, stdev=70.04 lat (msec): min=44, max=429, avg=139.41, stdev=70.04 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 111], 50.00th=[ 122], 60.00th=[ 134], | 70.00th=[ 148], 80.00th=[ 186], 90.00th=[ 230], 95.00th=[ 268], | 99.00th=[ 388], 99.50th=[ 414], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 28, max= 216, per=26.73%, avg=94.35, stdev=42.06, samples=136 iops : min= 1, max= 13, avg= 5.15, stdev= 2.71, samples=136 lat (msec) : 10=0.65%, 20=14.84%, 50=23.05%, 100=22.79%, 250=33.98% lat (msec) : 500=4.69% cpu : usr=0.06%, sys=1.38%, ctx=1327, 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=149065: Sat Sep 5 07:02:26 2026 read: IOPS=5, BW=88.7KiB/s (90.8kB/s)(6256KiB/70521msec) clat (msec): min=6, max=345, avg=39.67, stdev=44.74 lat (msec): min=6, max=345, avg=39.68, stdev=44.73 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 87], 95.00th=[ 133], | 99.00th=[ 284], 99.50th=[ 321], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 288, per=29.14%, avg=97.90, stdev=66.48, samples=126 iops : min= 1, max= 18, avg= 5.37, stdev= 4.24, samples=126 write: IOPS=5, BW=85.5KiB/s (87.6kB/s)(6032KiB/70521msec); 0 zone resets clat (msec): min=44, max=566, avg=145.74, stdev=75.22 lat (msec): min=44, max=566, avg=145.74, stdev=75.22 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 65], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 113], 50.00th=[ 125], 60.00th=[ 140], | 70.00th=[ 163], 80.00th=[ 188], 90.00th=[ 243], 95.00th=[ 296], | 99.00th=[ 456], 99.50th=[ 531], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 28, max= 191, per=25.00%, avg=88.24, stdev=37.97, samples=134 iops : min= 1, max= 11, avg= 4.75, stdev= 2.49, samples=134 lat (msec) : 10=1.04%, 20=17.32%, 50=23.31%, 100=18.88%, 250=34.38% lat (msec) : 500=4.82%, 750=0.26% cpu : usr=0.04%, sys=1.30%, ctx=1307, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149067: Sat Sep 5 07:02:26 2026 read: IOPS=5, BW=84.9KiB/s (86.9kB/s)(6032KiB/71072msec) clat (msec): min=6, max=378, avg=40.72, stdev=48.09 lat (msec): min=6, max=378, avg=40.73, stdev=48.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 84], 95.00th=[ 140], | 99.00th=[ 251], 99.50th=[ 338], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 30, max= 350, per=28.39%, avg=95.40, stdev=61.68, samples=122 iops : min= 1, max= 21, avg= 5.20, stdev= 3.98, samples=122 write: IOPS=5, BW=88.0KiB/s (90.1kB/s)(6256KiB/71072msec); 0 zone resets clat (msec): min=47, max=633, avg=142.30, stdev=73.47 lat (msec): min=47, max=633, avg=142.31, stdev=73.47 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 125], 60.00th=[ 136], | 70.00th=[ 150], 80.00th=[ 180], 90.00th=[ 241], 95.00th=[ 288], | 99.00th=[ 414], 99.50th=[ 456], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 31, max= 160, per=25.79%, avg=91.05, stdev=39.82, samples=133 iops : min= 1, max= 10, avg= 4.92, stdev= 2.59, samples=133 lat (msec) : 10=1.69%, 20=17.58%, 50=20.05%, 100=21.09%, 250=34.38% lat (msec) : 500=5.08%, 750=0.13% cpu : usr=0.04%, sys=1.30%, ctx=1331, 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=336KiB/s (345kB/s), 80.9KiB/s-88.7KiB/s (82.8kB/s-90.8kB/s), io=23.4MiB (24.5MB), run=70521-71191msec WRITE: bw=354KiB/s (362kB/s), 85.5KiB/s-92.1KiB/s (87.6kB/s-94.4kB/s), io=24.6MiB (25.8MB), run=70521-71191msec 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=149089: Sat Sep 5 07:02:45 2026 read: IOPS=1, BW=1074KiB/s (1100kB/s)(7168KiB/6672msec) clat (msec): min=170, max=419, avg=273.60, stdev=93.40 lat (msec): min=170, max=419, avg=273.60, stdev=93.40 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 174], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 247], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 342], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 2035, max= 4071, per=100.00%, avg=3053.00, stdev=1170.88, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=767KiB/s (786kB/s)(5120KiB/6672msec); 0 zone resets clat (msec): min=162, max=3395, avg=898.40, stdev=1398.59 lat (msec): min=163, max=3395, avg=898.70, stdev=1398.61 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 1954, max= 3849, per=63.13%, avg=2473.50, stdev=918.02, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=41.67%, >=2000=8.33% cpu : usr=0.01%, sys=8.15%, ctx=314, 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=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=149090: Sat Sep 5 07:02:45 2026 read: IOPS=0, BW=290KiB/s (297kB/s)(2048KiB/7064msec) clat (msec): min=3, max=232, avg=117.53, stdev=161.95 lat (msec): min=3, max=232, avg=117.53, stdev=161.95 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 3], 40.00th=[ 3], 50.00th=[ 3], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 1383, max= 2035, per=61.08%, avg=1709.00, stdev=461.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1450KiB/s (1484kB/s)(10.0MiB/7064msec); 0 zone resets clat (msec): min=114, max=2666, avg=648.84, stdev=744.61 lat (msec): min=114, max=2666, avg=648.92, stdev=744.61 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 171], | 30.00th=[ 176], 40.00th=[ 351], 50.00th=[ 464], 60.00th=[ 506], | 70.00th=[ 542], 80.00th=[ 693], 90.00th=[ 810], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 1932, max= 4079, per=66.34%, avg=2599.14, stdev=998.06, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 4=8.33%, 250=33.33%, 500=16.67%, 750=25.00%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.01%, sys=6.43%, ctx=105, 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=149091: Sat Sep 5 07:02:45 2026 read: IOPS=1, BW=1798KiB/s (1841kB/s)(6144KiB/3418msec) clat (usec): min=548, max=561807, avg=143197.11, stdev=220454.13 lat (usec): min=550, max=561808, avg=143198.38, stdev=220453.75 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 619], | 30.00th=[ 619], 40.00th=[ 4555], 50.00th=[ 4555], 60.00th=[ 83362], | 70.00th=[208667], 80.00th=[208667], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 4071, max= 6119, per=100.00%, avg=5095.00, stdev=1448.15, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1798KiB/s (1841kB/s)(6144KiB/3418msec); 0 zone resets clat (msec): min=125, max=720, avg=409.72, stdev=213.71 lat (msec): min=125, max=721, avg=409.81, stdev=213.73 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 388], | 70.00th=[ 592], 80.00th=[ 592], 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= 1408, max= 4079, per=73.97%, avg=2898.25, stdev=1382.70, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=16.67% lat (msec) : 10=8.33%, 100=8.33%, 250=16.67%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=11.58%, ctx=212, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149092: Sat Sep 5 07:02:45 2026 read: IOPS=0, BW=700KiB/s (717kB/s)(5120KiB/7317msec) clat (usec): min=446, max=3091.9k, avg=743997.11, stdev=1316771.84 lat (usec): min=447, max=3091.9k, avg=743998.44, stdev=1316771.86 clat percentiles (usec): | 1.00th=[ 449], 5.00th=[ 449], 10.00th=[ 449], | 20.00th=[ 449], 30.00th=[ 162530], 40.00th=[ 162530], | 50.00th=[ 164627], 60.00th=[ 164627], 70.00th=[ 299893], | 80.00th=[ 299893], 90.00th=[3103785], 95.00th=[3103785], | 99.00th=[3103785], 99.50th=[3103785], 99.90th=[3103785], | 99.95th=[3103785], 99.99th=[3103785] bw ( KiB/s): min= 2035, max= 5873, per=100.00%, avg=3954.00, stdev=2713.88, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=980KiB/s (1003kB/s)(7168KiB/7317msec); 0 zone resets clat (msec): min=173, max=649, avg=461.90, stdev=208.46 lat (msec): min=173, max=649, avg=462.12, stdev=208.59 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 190], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 550], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 642], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1932, max= 2039, per=51.45%, avg=2016.00, stdev=47.00, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=33.33%, 500=16.67%, 750=33.33%, >=2000=8.33% cpu : usr=0.01%, sys=8.72%, ctx=598, 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=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=2799KiB/s (2866kB/s), 290KiB/s-1798KiB/s (297kB/s-1841kB/s), io=20.0MiB (20.0MB), run=3418-7317msec WRITE: bw=3919KiB/s (4013kB/s), 767KiB/s-1798KiB/s (786kB/s-1841kB/s), io=28.0MiB (29.4MB), run=3418-7317msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149084: Sat Sep 5 07:02:45 2026 read: IOPS=1, BW=1102KiB/s (1129kB/s)(7168KiB/6504msec) clat (msec): min=135, max=499, avg=251.45, stdev=120.08 lat (msec): min=135, max=499, avg=251.45, stdev=120.08 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 253], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 262], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1954, max= 4140, per=96.64%, avg=2526.25, stdev=1076.20, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=787KiB/s (806kB/s)(5120KiB/6504msec); 0 zone resets clat (msec): min=194, max=3475, avg=918.88, stdev=1432.71 lat (msec): min=194, max=3477, avg=919.28, stdev=1433.29 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 2019, max= 4047, per=73.87%, avg=2703.00, stdev=1164.00, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=50.00%, >=2000=8.33% cpu : usr=0.02%, sys=2.31%, ctx=73, 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=149085: Sat Sep 5 07:02:45 2026 read: IOPS=0, BW=271KiB/s (278kB/s)(2048KiB/7547msec) clat (msec): min=131, max=400, avg=266.20, stdev=189.82 lat (msec): min=131, max=400, avg=266.20, stdev=189.82 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 132], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 1943, max= 2048, per=76.34%, avg=1995.50, stdev=74.25, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1357KiB/s (1389kB/s)(10.0MiB/7547msec); 0 zone resets clat (msec): min=222, max=2595, avg=690.04, stdev=709.37 lat (msec): min=222, max=2595, avg=690.15, stdev=709.38 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 230], | 30.00th=[ 239], 40.00th=[ 363], 50.00th=[ 414], 60.00th=[ 493], | 70.00th=[ 701], 80.00th=[ 785], 90.00th=[ 869], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 1992, max= 4096, per=63.51%, avg=2324.00, stdev=781.60, samples=7 iops : min= 1, max= 4, avg= 1.57, stdev= 1.13, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 1000=16.67%, >=2000=8.33% cpu : usr=0.05%, sys=2.68%, ctx=110, 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=149086: Sat Sep 5 07:02:45 2026 read: IOPS=0, BW=784KiB/s (803kB/s)(6144KiB/7834msec) clat (msec): min=139, max=2661, avg=724.53, stdev=988.04 lat (msec): min=139, max=2661, avg=724.53, stdev=988.04 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 368], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 1954, max= 2019, per=75.69%, avg=1978.50, stdev=30.18, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=0, BW=784KiB/s (803kB/s)(6144KiB/7834msec); 0 zone resets clat (msec): min=174, max=1407, avg=556.30, stdev=456.71 lat (msec): min=174, max=1407, avg=556.43, stdev=456.73 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 592], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1420, max= 2043, per=51.36%, avg=1879.25, stdev=306.33, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=16.67%, 750=16.67%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.04%, sys=2.13%, ctx=88, 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=149088: Sat Sep 5 07:02:45 2026 read: IOPS=0, BW=756KiB/s (774kB/s)(5120KiB/6774msec) clat (msec): min=116, max=817, avg=337.69, stdev=295.95 lat (msec): min=116, max=817, avg=337.70, stdev=295.95 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 192], 60.00th=[ 192], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1943, max= 4071, per=100.00%, avg=2677.67, stdev=1207.26, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1058KiB/s (1084kB/s)(7168KiB/6774msec); 0 zone resets clat (msec): min=197, max=2790, avg=724.05, stdev=930.66 lat (msec): min=197, max=2790, avg=724.24, stdev=930.59 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 709], 90.00th=[ 2802], 95.00th=[ 2802], | 99.00th=[ 2802], 99.50th=[ 2802], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 1992, max= 4087, per=77.17%, avg=2823.60, stdev=1096.88, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.08%, ctx=62, 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=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=2614KiB/s (2677kB/s), 271KiB/s-1102KiB/s (278kB/s-1129kB/s), io=20.0MiB (20.0MB), run=6504-7834msec WRITE: bw=3660KiB/s (3748kB/s), 784KiB/s-1357KiB/s (803kB/s-1389kB/s), io=28.0MiB (29.4MB), run=6504-7834msec 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=149100: Sat Sep 5 07:03:01 2026 read: IOPS=1, BW=4201KiB/s (4302kB/s)(12.0MiB/2925msec) clat (msec): min=839, max=1098, avg=961.78, stdev=130.15 lat (msec): min=839, max=1098, avg=961.79, stdev=130.15 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 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= 7599, max= 8094, per=100.00%, avg=7846.50, stdev=350.02, 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=13.03%, ctx=510, 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=149101: Sat Sep 5 07:03:01 2026 read: IOPS=0, BW=1193KiB/s (1221kB/s)(4096KiB/3434msec) clat (nsec): min=1279.3M, max=1279.3M, avg=1279323016.00, stdev= 0.00 lat (nsec): min=1279.3M, max=1279.3M, avg=1279325691.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2386KiB/s (2443kB/s)(8192KiB/3434msec); 0 zone resets clat (msec): min=437, max=1670, avg=1054.00, stdev=871.95 lat (msec): min=437, max=1674, avg=1056.21, stdev=874.42 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7907, max= 7907, per=82.87%, avg=7907.00, 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=6.85%, ctx=166, 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=149102: Sat Sep 5 07:03:01 2026 write: IOPS=0, BW=3727KiB/s (3816kB/s)(12.0MiB/3297msec); 0 zone resets clat (msec): min=923, max=1255, avg=1043.66, stdev=183.85 lat (msec): min=930, max=1256, avg=1046.94, stdev=181.73 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 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] bw ( KiB/s): min= 7488, max= 8094, per=81.65%, avg=7791.00, stdev=428.51, 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=0.06%, sys=7.25%, ctx=136, 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=149104: Sat Sep 5 07:03:01 2026 write: IOPS=1, BW=4276KiB/s (4378kB/s)(12.0MiB/2874msec); 0 zone resets clat (msec): min=311, max=1337, avg=947.04, stdev=555.08 lat (msec): min=312, max=1338, avg=947.48, stdev=555.07 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 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= 7907, max= 8126, per=84.01%, avg=8016.50, stdev=154.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.41%, ctx=49, 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=4771KiB/s (4886kB/s), 1193KiB/s-4201KiB/s (1221kB/s-4302kB/s), io=16.0MiB (16.8MB), run=2925-3434msec WRITE: bw=9542KiB/s (9771kB/s), 2386KiB/s-4276KiB/s (2443kB/s-4378kB/s), io=32.0MiB (33.6MB), run=2874-3434msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149103: Sat Sep 5 07:03:02 2026 read: IOPS=0, BW=3262KiB/s (3340kB/s)(12.0MiB/3767msec) clat (msec): min=283, max=2063, avg=1244.01, stdev=897.99 lat (msec): min=283, max=2063, avg=1244.01, stdev=897.99 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 8078, max= 8175, per=100.00%, avg=8126.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.44%, ctx=45, 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=149105: Sat Sep 5 07:03:02 2026 read: IOPS=0, BW=1071KiB/s (1097kB/s)(4096KiB/3823msec) clat (nsec): min=1832.6M, max=1832.6M, avg=1832556015.00, stdev= 0.00 lat (nsec): min=1832.6M, max=1832.6M, avg=1832558209.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1838], 5.00th=[ 1838], 10.00th=[ 1838], 20.00th=[ 1838], | 30.00th=[ 1838], 40.00th=[ 1838], 50.00th=[ 1838], 60.00th=[ 1838], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] 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=2143KiB/s (2194kB/s)(8192KiB/3823msec); 0 zone resets clat (msec): min=273, max=1676, avg=975.02, stdev=992.15 lat (msec): min=274, max=1677, avg=975.69, stdev=992.01 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8078, max= 8078, per=94.25%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=2.22%, ctx=35, 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=149106: Sat Sep 5 07:03:02 2026 write: IOPS=0, BW=3461KiB/s (3544kB/s)(12.0MiB/3550msec); 0 zone resets clat (msec): min=325, max=1673, avg=1152.43, stdev=724.36 lat (msec): min=325, max=1673, avg=1152.89, stdev=724.38 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8015, max= 8159, per=94.35%, avg=8087.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.23%, ctx=56, 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=149107: Sat Sep 5 07:03:02 2026 write: IOPS=1, BW=4676KiB/s (4788kB/s)(12.0MiB/2628msec); 0 zone resets clat (msec): min=443, max=1337, avg=831.97, stdev=458.58 lat (msec): min=453, max=1338, avg=835.61, stdev=454.55 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 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= 5542, max= 8047, per=79.27%, avg=6794.50, stdev=1771.30, 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=0.11%, sys=4.49%, ctx=49, 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=4286KiB/s (4388kB/s), 1071KiB/s-3262KiB/s (1097kB/s-3340kB/s), io=16.0MiB (16.8MB), run=3767-3823msec WRITE: bw=8571KiB/s (8777kB/s), 2143KiB/s-4676KiB/s (2194kB/s-4788kB/s), io=32.0MiB (33.6MB), run=2628-3823msec