== sanity test 398b: DIO and buffer IO race ============== 09:51:53 (1784123513) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.9646 s, 17.0 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=158607: Wed Jul 15 09:52:50 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(5992KiB/48061msec) clat (usec): min=32, max=727342, avg=17176.17, stdev=20925.42 lat (usec): min=33, max=727343, avg=17176.89, stdev=20925.46 clat percentiles (usec): | 1.00th=[ 93], 5.00th=[ 6194], 10.00th=[ 7635], 20.00th=[ 9241], | 30.00th=[ 10552], 40.00th=[ 12518], 50.00th=[ 14746], 60.00th=[ 16909], | 70.00th=[ 19530], 80.00th=[ 22414], 90.00th=[ 30016], 95.00th=[ 36439], | 99.00th=[ 47449], 99.50th=[ 52691], 99.90th=[ 99091], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 6, max= 240, per=25.10%, avg=124.24, stdev=37.42, samples=95 iops : min= 1, max= 60, avg=30.74, stdev= 9.47, samples=95 write: IOPS=32, BW=131KiB/s (134kB/s)(6296KiB/48061msec); 0 zone resets clat (usec): min=779, max=164008, avg=14052.37, stdev=11688.47 lat (usec): min=779, max=164009, avg=14053.67, stdev=11688.62 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2376], 10.00th=[ 2966], 20.00th=[ 3982], | 30.00th=[ 6325], 40.00th=[ 9241], 50.00th=[ 11469], 60.00th=[ 14353], | 70.00th=[ 17957], 80.00th=[ 21627], 90.00th=[ 28181], 95.00th=[ 33424], | 99.00th=[ 47973], 99.50th=[ 70779], 99.90th=[ 95945], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 31, max= 216, per=25.43%, avg=131.72, stdev=41.97, samples=94 iops : min= 7, max= 54, avg=32.61, stdev=10.57, samples=94 lat (usec) : 50=0.20%, 100=0.59%, 250=1.07%, 500=0.07%, 1000=0.46% lat (msec) : 2=1.33%, 4=8.72%, 10=21.91%, 20=39.68%, 50=25.13% lat (msec) : 100=0.78%, 250=0.03%, 750=0.03% cpu : usr=0.15%, sys=28.40%, ctx=9181, 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=158608: Wed Jul 15 09:52:50 2026 read: IOPS=30, BW=124KiB/s (127kB/s)(5940KiB/47970msec) clat (usec): min=29, max=74994, avg=16388.59, stdev=9784.72 lat (usec): min=30, max=74995, avg=16389.29, stdev=9784.79 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 5211], 10.00th=[ 7242], 20.00th=[ 9110], | 30.00th=[10683], 40.00th=[12387], 50.00th=[14877], 60.00th=[16909], | 70.00th=[19268], 80.00th=[22414], 90.00th=[27919], 95.00th=[33817], | 99.00th=[51643], 99.50th=[56886], 99.90th=[70779], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 6, max= 200, per=24.97%, avg=123.58, stdev=39.29, samples=95 iops : min= 1, max= 50, avg=30.57, stdev= 9.91, samples=95 write: IOPS=33, BW=132KiB/s (136kB/s)(6348KiB/47970msec); 0 zone resets clat (usec): min=680, max=706948, avg=14753.00, stdev=20999.75 lat (usec): min=680, max=706950, avg=14754.32, stdev=20999.71 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 2442], 10.00th=[ 3032], 20.00th=[ 4015], | 30.00th=[ 6128], 40.00th=[ 9241], 50.00th=[ 11600], 60.00th=[ 14353], | 70.00th=[ 17695], 80.00th=[ 22414], 90.00th=[ 28967], 95.00th=[ 35914], | 99.00th=[ 54789], 99.50th=[ 68682], 99.90th=[113771], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 39, max= 239, per=25.69%, avg=133.06, stdev=38.21, samples=94 iops : min= 9, max= 59, avg=32.95, stdev= 9.64, samples=94 lat (usec) : 50=0.20%, 100=0.65%, 250=1.27%, 500=0.07%, 750=0.13% lat (usec) : 1000=0.36% lat (msec) : 2=1.27%, 4=8.59%, 10=22.20%, 20=39.10%, 50=24.84% lat (msec) : 100=1.27%, 250=0.03%, 750=0.03% cpu : usr=0.12%, sys=28.79%, ctx=9159, 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=158609: Wed Jul 15 09:52:50 2026 read: IOPS=31, BW=124KiB/s (127kB/s)(6028KiB/48497msec) clat (usec): min=31, max=85036, avg=16436.06, stdev=10012.57 lat (usec): min=32, max=85037, avg=16436.92, stdev=10012.61 clat percentiles (usec): | 1.00th=[ 84], 5.00th=[ 4146], 10.00th=[ 7177], 20.00th=[ 8979], | 30.00th=[10683], 40.00th=[12518], 50.00th=[14615], 60.00th=[16909], | 70.00th=[19530], 80.00th=[22414], 90.00th=[28967], 95.00th=[35390], | 99.00th=[49021], 99.50th=[60556], 99.90th=[74974], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 39, max= 216, per=25.05%, avg=124.01, stdev=38.04, samples=95 iops : min= 9, max= 54, avg=30.68, stdev= 9.61, samples=95 write: IOPS=32, BW=129KiB/s (132kB/s)(6260KiB/48497msec); 0 zone resets clat (usec): min=719, max=684561, avg=15029.28, stdev=21069.20 lat (usec): min=719, max=684562, avg=15030.22, stdev=21069.23 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 2278], 10.00th=[ 2900], 20.00th=[ 3884], | 30.00th=[ 5932], 40.00th=[ 8848], 50.00th=[ 11600], 60.00th=[ 14484], | 70.00th=[ 18482], 80.00th=[ 22938], 90.00th=[ 30278], 95.00th=[ 37487], | 99.00th=[ 56361], 99.50th=[ 72877], 99.90th=[126354], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 39, max= 280, per=24.85%, avg=128.73, stdev=42.69, samples=95 iops : min= 9, max= 70, avg=31.86, stdev=10.72, samples=95 lat (usec) : 50=0.16%, 100=0.75%, 250=1.07%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.52% lat (msec) : 2=1.33%, 4=8.85%, 10=22.04%, 20=38.22%, 50=25.55% lat (msec) : 100=1.20%, 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=28.04%, ctx=9167, 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=158610: Wed Jul 15 09:52:50 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(6052KiB/47936msec) clat (usec): min=47, max=646167, avg=16789.84, stdev=19101.29 lat (usec): min=47, max=646168, avg=16790.58, stdev=19101.34 clat percentiles (usec): | 1.00th=[ 98], 5.00th=[ 4883], 10.00th=[ 7308], 20.00th=[ 9241], | 30.00th=[ 10683], 40.00th=[ 12256], 50.00th=[ 14353], 60.00th=[ 16712], | 70.00th=[ 19268], 80.00th=[ 22152], 90.00th=[ 29230], 95.00th=[ 34341], | 99.00th=[ 51119], 99.50th=[ 60031], 99.90th=[103285], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 6, max= 208, per=25.47%, avg=126.07, stdev=37.36, samples=95 iops : min= 1, max= 52, avg=31.20, stdev= 9.44, samples=95 write: IOPS=32, BW=130KiB/s (133kB/s)(6236KiB/47936msec); 0 zone resets clat (usec): min=704, max=102692, avg=14320.29, stdev=12019.81 lat (usec): min=705, max=102693, avg=14323.70, stdev=12025.59 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 2376], 10.00th=[ 2933], 20.00th=[ 3818], | 30.00th=[ 5735], 40.00th=[ 8586], 50.00th=[ 11207], 60.00th=[ 14353], | 70.00th=[ 17957], 80.00th=[ 23200], 90.00th=[ 30802], 95.00th=[ 36963], | 99.00th=[ 54264], 99.50th=[ 57410], 99.90th=[ 93848], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 26, max= 232, per=25.07%, avg=129.84, stdev=41.13, samples=95 iops : min= 6, max= 58, avg=32.14, stdev=10.41, samples=95 lat (usec) : 50=0.10%, 100=0.62%, 250=1.43%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.33% lat (msec) : 2=1.24%, 4=9.08%, 10=22.53%, 20=38.44%, 50=24.84% lat (msec) : 100=1.14%, 250=0.07%, 750=0.03% cpu : usr=0.10%, sys=28.34%, ctx=9190, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=495KiB/s (507kB/s), 124KiB/s-126KiB/s (127kB/s-129kB/s), io=23.4MiB (24.6MB), run=47936-48497msec WRITE: bw=518KiB/s (531kB/s), 129KiB/s-132KiB/s (132kB/s-136kB/s), io=24.6MiB (25.7MB), run=47936-48497msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158612: Wed Jul 15 09:53:11 2026 read: IOPS=21, BW=86.9KiB/s (89.0kB/s)(5992KiB/68925msec) clat (msec): min=2, max=719, avg=13.93, stdev=22.91 lat (msec): min=2, max=719, avg=13.93, stdev=22.91 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 6], 50.00th=[ 8], 60.00th=[ 11], | 70.00th=[ 15], 80.00th=[ 21], 90.00th=[ 31], 95.00th=[ 43], | 99.00th=[ 69], 99.50th=[ 81], 99.90th=[ 129], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 15, max= 208, per=25.08%, avg=87.27, stdev=49.45, samples=136 iops : min= 3, max= 52, avg=21.54, stdev=12.49, samples=136 write: IOPS=22, BW=91.3KiB/s (93.5kB/s)(6296KiB/68925msec); 0 zone resets clat (msec): min=12, max=123, avg=30.45, stdev=15.81 lat (msec): min=12, max=123, avg=30.46, stdev=15.81 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 19], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 41], 90.00th=[ 52], 95.00th=[ 63], | 99.00th=[ 86], 99.50th=[ 102], 99.90th=[ 120], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 24, max= 192, per=25.20%, avg=91.74, stdev=47.14, samples=136 iops : min= 6, max= 48, avg=22.65, stdev=11.94, samples=136 lat (msec) : 4=7.10%, 10=21.00%, 20=24.90%, 50=39.71%, 100=6.93% lat (msec) : 250=0.33%, 750=0.03% cpu : usr=0.10%, sys=10.56%, ctx=5984, 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=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=158613: Wed Jul 15 09:53:11 2026 read: IOPS=21, BW=86.1KiB/s (88.2kB/s)(5940KiB/68997msec) clat (msec): min=2, max=659, avg=13.84, stdev=21.76 lat (msec): min=2, max=659, avg=13.84, stdev=21.76 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 6], 50.00th=[ 7], 60.00th=[ 11], | 70.00th=[ 16], 80.00th=[ 21], 90.00th=[ 32], 95.00th=[ 41], | 99.00th=[ 69], 99.50th=[ 88], 99.90th=[ 117], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 15, max= 256, per=24.82%, avg=86.39, stdev=54.78, samples=136 iops : min= 3, max= 64, avg=21.32, stdev=13.81, samples=136 write: IOPS=23, BW=92.0KiB/s (94.2kB/s)(6348KiB/68997msec); 0 zone resets clat (msec): min=10, max=155, avg=30.45, stdev=16.70 lat (msec): min=10, max=155, avg=30.45, stdev=16.70 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 41], 90.00th=[ 53], 95.00th=[ 64], | 99.00th=[ 94], 99.50th=[ 109], 99.90th=[ 118], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 23, max= 192, per=25.30%, avg=92.10, stdev=47.83, samples=136 iops : min= 5, max= 48, avg=22.74, stdev=12.12, samples=136 lat (msec) : 4=7.06%, 10=21.42%, 20=24.90%, 50=38.96%, 100=7.16% lat (msec) : 250=0.46%, 750=0.03% cpu : usr=0.11%, sys=10.33%, ctx=5863, 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=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=158614: Wed Jul 15 09:53:11 2026 read: IOPS=21, BW=87.8KiB/s (89.9kB/s)(6028KiB/68671msec) clat (msec): min=2, max=110, avg=13.23, stdev=13.21 lat (msec): min=2, max=110, avg=13.23, stdev=13.21 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 6], 50.00th=[ 8], 60.00th=[ 11], | 70.00th=[ 15], 80.00th=[ 21], 90.00th=[ 30], 95.00th=[ 41], | 99.00th=[ 65], 99.50th=[ 79], 99.90th=[ 88], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 15, max= 224, per=25.33%, avg=88.15, stdev=50.50, samples=135 iops : min= 3, max= 56, avg=21.76, stdev=12.76, samples=135 write: IOPS=22, BW=91.2KiB/s (93.3kB/s)(6260KiB/68671msec); 0 zone resets clat (msec): min=12, max=681, avg=31.06, stdev=22.95 lat (msec): min=12, max=681, avg=31.06, stdev=22.95 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 19], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 53], 95.00th=[ 63], | 99.00th=[ 86], 99.50th=[ 100], 99.90th=[ 171], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 31, max= 200, per=25.10%, avg=91.36, stdev=47.26, samples=135 iops : min= 7, max= 50, avg=22.56, stdev=11.97, samples=135 lat (msec) : 4=7.26%, 10=20.80%, 20=25.91%, 50=38.35%, 100=7.45% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.09%, sys=10.49%, ctx=5872, 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=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=158615: Wed Jul 15 09:53:11 2026 read: IOPS=22, BW=88.4KiB/s (90.5kB/s)(6052KiB/68481msec) clat (msec): min=2, max=126, avg=13.87, stdev=14.60 lat (msec): min=2, max=126, avg=13.87, stdev=14.60 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 6], 50.00th=[ 8], 60.00th=[ 12], | 70.00th=[ 16], 80.00th=[ 22], 90.00th=[ 33], 95.00th=[ 42], | 99.00th=[ 72], 99.50th=[ 87], 99.90th=[ 115], 99.95th=[ 127], | 99.99th=[ 127] bw ( KiB/s): min= 15, max= 272, per=25.50%, avg=88.75, stdev=52.85, samples=135 iops : min= 3, max= 68, avg=21.90, stdev=13.36, samples=135 write: IOPS=22, BW=91.1KiB/s (93.2kB/s)(6236KiB/68481msec); 0 zone resets clat (msec): min=11, max=670, avg=30.39, stdev=22.55 lat (msec): min=11, max=670, avg=30.39, stdev=22.55 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 41], 90.00th=[ 51], 95.00th=[ 60], | 99.00th=[ 83], 99.50th=[ 104], 99.90th=[ 174], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 24, max= 192, per=25.11%, avg=91.41, stdev=47.64, samples=135 iops : min= 6, max= 48, avg=22.57, stdev=12.06, samples=135 lat (msec) : 4=6.45%, 10=21.45%, 20=25.72%, 50=39.49%, 100=6.51% lat (msec) : 250=0.36%, 750=0.03% cpu : usr=0.11%, sys=10.55%, ctx=5855, 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=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=348KiB/s (356kB/s), 86.1KiB/s-88.4KiB/s (88.2kB/s-90.5kB/s), io=23.4MiB (24.6MB), run=68481-68997msec WRITE: bw=364KiB/s (373kB/s), 91.1KiB/s-92.0KiB/s (93.2kB/s-94.2kB/s), io=24.6MiB (25.7MB), run=68481-68997msec 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=158645: Wed Jul 15 09:53:30 2026 read: IOPS=28, BW=449KiB/s (460kB/s)(5920KiB/13176msec) clat (usec): min=51, max=61486, avg=17651.17, stdev=10288.56 lat (usec): min=51, max=61486, avg=17651.78, stdev=10288.60 clat percentiles (usec): | 1.00th=[ 101], 5.00th=[ 161], 10.00th=[ 7832], 20.00th=[10290], | 30.00th=[12125], 40.00th=[14091], 50.00th=[16057], 60.00th=[18220], | 70.00th=[21103], 80.00th=[25035], 90.00th=[30802], 95.00th=[36439], | 99.00th=[49546], 99.50th=[61604], 99.90th=[61604], 99.95th=[61604], | 99.99th=[61604] bw ( KiB/s): min= 219, max= 704, per=25.26%, avg=439.60, stdev=152.36, samples=25 iops : min= 13, max= 44, avg=26.88, stdev= 9.51, samples=25 write: IOPS=30, BW=483KiB/s (495kB/s)(6368KiB/13176msec); 0 zone resets clat (usec): min=1018, max=77279, avg=16541.79, stdev=11590.34 lat (usec): min=1019, max=77280, avg=16543.01, stdev=11590.49 clat percentiles (usec): | 1.00th=[ 2376], 5.00th=[ 4015], 10.00th=[ 4555], 20.00th=[ 6325], | 30.00th=[ 8586], 40.00th=[10421], 50.00th=[13566], 60.00th=[16909], | 70.00th=[20579], 80.00th=[26870], 90.00th=[32113], 95.00th=[38536], | 99.00th=[53216], 99.50th=[54789], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 223, max= 764, per=25.94%, avg=474.64, stdev=128.16, samples=25 iops : min= 13, max= 47, avg=29.08, stdev= 7.99, samples=25 lat (usec) : 100=0.39%, 250=2.99%, 500=0.13%, 750=0.13% lat (msec) : 2=0.39%, 4=2.21%, 10=22.27%, 20=39.71%, 50=30.47% lat (msec) : 100=1.30% cpu : usr=0.11%, sys=31.10%, ctx=2807, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158646: Wed Jul 15 09:53:30 2026 read: IOPS=26, BW=427KiB/s (437kB/s)(5744KiB/13463msec) clat (usec): min=56, max=58579, avg=18817.31, stdev=11058.07 lat (usec): min=57, max=58580, avg=18818.01, stdev=11058.07 clat percentiles (usec): | 1.00th=[ 90], 5.00th=[ 143], 10.00th=[ 8094], 20.00th=[10552], | 30.00th=[12649], 40.00th=[14484], 50.00th=[17171], 60.00th=[19530], | 70.00th=[22414], 80.00th=[27919], 90.00th=[33424], 95.00th=[39584], | 99.00th=[55313], 99.50th=[55837], 99.90th=[58459], 99.95th=[58459], | 99.99th=[58459] bw ( KiB/s): min= 222, max= 734, per=24.19%, avg=420.85, stdev=130.04, samples=26 iops : min= 13, max= 45, avg=25.73, stdev= 8.13, samples=26 write: IOPS=30, BW=486KiB/s (498kB/s)(6544KiB/13463msec); 0 zone resets clat (usec): min=1000, max=74218, avg=16332.56, stdev=12643.61 lat (usec): min=1001, max=74220, avg=16333.63, stdev=12643.68 clat percentiles (usec): | 1.00th=[ 2868], 5.00th=[ 4146], 10.00th=[ 4686], 20.00th=[ 6128], | 30.00th=[ 8160], 40.00th=[ 9896], 50.00th=[12780], 60.00th=[15533], | 70.00th=[19792], 80.00th=[24249], 90.00th=[33817], 95.00th=[42730], | 99.00th=[57410], 99.50th=[69731], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 250, max= 764, per=25.91%, avg=474.12, stdev=149.92, samples=26 iops : min= 15, max= 47, avg=29.08, stdev= 9.41, samples=26 lat (usec) : 100=1.04%, 250=2.34% lat (msec) : 2=0.26%, 4=1.82%, 10=23.96%, 20=37.24%, 50=31.12% lat (msec) : 100=2.21% cpu : usr=0.11%, sys=30.86%, ctx=2884, 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=158647: Wed Jul 15 09:53:30 2026 read: IOPS=28, BW=455KiB/s (465kB/s)(6256KiB/13764msec) clat (usec): min=55, max=90454, avg=18876.11, stdev=12103.75 lat (usec): min=56, max=90455, avg=18876.77, stdev=12103.80 clat percentiles (usec): | 1.00th=[ 77], 5.00th=[ 135], 10.00th=[ 7832], 20.00th=[10552], | 30.00th=[12518], 40.00th=[14353], 50.00th=[17171], 60.00th=[19530], | 70.00th=[21627], 80.00th=[26346], 90.00th=[33817], 95.00th=[42206], | 99.00th=[63177], 99.50th=[77071], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 156, max= 862, per=26.24%, avg=456.63, stdev=139.03, samples=27 iops : min= 9, max= 53, avg=27.96, stdev= 8.67, samples=27 write: IOPS=27, BW=438KiB/s (449kB/s)(6032KiB/13764msec); 0 zone resets clat (usec): min=1511, max=78336, avg=16711.20, stdev=12824.59 lat (usec): min=1512, max=78337, avg=16712.57, stdev=12824.67 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 3720], 10.00th=[ 4359], 20.00th=[ 5604], | 30.00th=[ 8291], 40.00th=[10945], 50.00th=[13435], 60.00th=[16909], | 70.00th=[20055], 80.00th=[25035], 90.00th=[33817], 95.00th=[43779], | 99.00th=[63177], 99.50th=[71828], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 158, max= 830, per=23.59%, avg=431.78, stdev=151.09, samples=27 iops : min= 9, max= 51, avg=26.41, stdev= 9.43, samples=27 lat (usec) : 100=1.43%, 250=2.34% lat (msec) : 2=0.52%, 4=2.86%, 10=19.01%, 20=39.71%, 50=31.77% lat (msec) : 100=2.34% cpu : usr=0.10%, sys=29.40%, ctx=2834, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158648: Wed Jul 15 09:53:30 2026 read: IOPS=29, BW=467KiB/s (478kB/s)(6032KiB/12926msec) clat (usec): min=54, max=65313, avg=17761.46, stdev=10655.14 lat (usec): min=54, max=65313, avg=17762.13, stdev=10655.10 clat percentiles (usec): | 1.00th=[ 71], 5.00th=[ 123], 10.00th=[ 306], 20.00th=[10552], | 30.00th=[12518], 40.00th=[14222], 50.00th=[16581], 60.00th=[19006], | 70.00th=[21627], 80.00th=[25035], 90.00th=[31065], 95.00th=[36963], | 99.00th=[50594], 99.50th=[57410], 99.90th=[65274], 99.95th=[65274], | 99.99th=[65274] bw ( KiB/s): min= 254, max= 640, per=26.58%, avg=462.52, stdev=121.44, samples=25 iops : min= 15, max= 40, avg=28.32, stdev= 7.64, samples=25 write: IOPS=30, BW=484KiB/s (496kB/s)(6256KiB/12926msec); 0 zone resets clat (usec): min=1051, max=82765, avg=15774.47, stdev=12093.11 lat (usec): min=1051, max=82767, avg=15775.80, stdev=12093.12 clat percentiles (usec): | 1.00th=[ 2114], 5.00th=[ 3884], 10.00th=[ 4621], 20.00th=[ 5997], | 30.00th=[ 7963], 40.00th=[10290], 50.00th=[12911], 60.00th=[15270], | 70.00th=[17957], 80.00th=[23462], 90.00th=[30540], 95.00th=[38536], | 99.00th=[60556], 99.50th=[73925], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 188, max= 766, per=26.34%, avg=482.08, stdev=144.52, samples=25 iops : min= 11, max= 47, avg=29.56, stdev= 8.92, samples=25 lat (usec) : 100=1.43%, 250=3.39%, 500=0.13% lat (msec) : 2=0.52%, 4=2.60%, 10=20.44%, 20=40.89%, 50=28.91% lat (msec) : 100=1.69% cpu : usr=0.12%, sys=31.21%, ctx=2661, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1740KiB/s (1782kB/s), 427KiB/s-467KiB/s (437kB/s-478kB/s), io=23.4MiB (24.5MB), run=12926-13764msec WRITE: bw=1831KiB/s (1875kB/s), 438KiB/s-486KiB/s (449kB/s-498kB/s), io=24.6MiB (25.8MB), run=12926-13764msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158640: Wed Jul 15 09:53:35 2026 read: IOPS=19, BW=306KiB/s (313kB/s)(5920KiB/19362msec) clat (msec): min=3, max=101, avg=16.25, stdev=15.84 lat (msec): min=3, max=101, avg=16.25, stdev=15.84 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 36], 95.00th=[ 47], | 99.00th=[ 84], 99.50th=[ 94], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 126, max= 670, per=24.71%, avg=302.71, stdev=136.49, samples=38 iops : min= 7, max= 41, avg=18.50, stdev= 8.68, samples=38 write: IOPS=20, BW=329KiB/s (337kB/s)(6368KiB/19362msec); 0 zone resets clat (msec): min=14, max=110, avg=33.45, stdev=14.76 lat (msec): min=14, max=110, avg=33.45, stdev=14.76 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 21], 20.00th=[ 23], | 30.00th=[ 26], 40.00th=[ 27], 50.00th=[ 30], 60.00th=[ 32], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 52], 95.00th=[ 66], | 99.00th=[ 91], 99.50th=[ 97], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 96, max= 576, per=25.39%, avg=327.03, stdev=130.48, samples=38 iops : min= 6, max= 36, avg=20.03, stdev= 8.29, samples=38 lat (msec) : 4=1.69%, 10=22.14%, 20=16.93%, 50=51.43%, 100=7.55% lat (msec) : 250=0.26% cpu : usr=0.07%, sys=11.85%, ctx=1674, 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=158641: Wed Jul 15 09:53:35 2026 read: IOPS=18, BW=294KiB/s (301kB/s)(5744KiB/19552msec) clat (msec): min=2, max=108, avg=15.99, stdev=15.33 lat (msec): min=2, max=108, avg=15.99, stdev=15.33 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 13], | 70.00th=[ 17], 80.00th=[ 25], 90.00th=[ 35], 95.00th=[ 50], | 99.00th=[ 77], 99.50th=[ 102], 99.90th=[ 109], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 95, max= 640, per=23.52%, avg=288.13, stdev=143.98, samples=38 iops : min= 5, max= 40, avg=17.58, stdev= 9.16, samples=38 write: IOPS=20, BW=335KiB/s (343kB/s)(6544KiB/19552msec); 0 zone resets clat (msec): min=10, max=127, avg=33.65, stdev=16.37 lat (msec): min=10, max=127, avg=33.65, stdev=16.37 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 23], | 30.00th=[ 24], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 36], 80.00th=[ 44], 90.00th=[ 57], 95.00th=[ 71], | 99.00th=[ 86], 99.50th=[ 94], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 159, max= 574, per=25.24%, avg=325.11, stdev=127.33, samples=38 iops : min= 9, max= 35, avg=19.89, stdev= 8.10, samples=38 lat (msec) : 4=1.56%, 10=22.14%, 20=17.97%, 50=49.87%, 100=8.07% lat (msec) : 250=0.39% cpu : usr=0.08%, sys=11.62%, ctx=1701, 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=158642: Wed Jul 15 09:53:35 2026 read: IOPS=20, BW=324KiB/s (331kB/s)(6256KiB/19336msec) clat (msec): min=3, max=113, avg=16.16, stdev=15.09 lat (msec): min=3, max=113, avg=16.16, stdev=15.09 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 35], 95.00th=[ 46], | 99.00th=[ 77], 99.50th=[ 92], 99.90th=[ 114], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 62, max= 896, per=26.58%, avg=325.61, stdev=183.14, samples=38 iops : min= 3, max= 56, avg=19.92, stdev=11.66, samples=38 write: IOPS=19, BW=312KiB/s (319kB/s)(6032KiB/19336msec); 0 zone resets clat (msec): min=14, max=116, avg=34.42, stdev=15.21 lat (msec): min=14, max=116, avg=34.42, stdev=15.21 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 21], 20.00th=[ 23], | 30.00th=[ 26], 40.00th=[ 28], 50.00th=[ 31], 60.00th=[ 33], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 56], 95.00th=[ 68], | 99.00th=[ 92], 99.50th=[ 94], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 96, max= 512, per=24.01%, avg=309.29, stdev=121.14, samples=38 iops : min= 6, max= 32, avg=18.92, stdev= 7.71, samples=38 lat (msec) : 4=1.04%, 10=22.53%, 20=18.62%, 50=49.22%, 100=8.33% lat (msec) : 250=0.26% cpu : usr=0.08%, sys=11.56%, ctx=1699, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158643: Wed Jul 15 09:53:35 2026 read: IOPS=19, BW=312KiB/s (320kB/s)(6032KiB/19331msec) clat (usec): min=3280, max=88725, avg=16852.50, stdev=14870.13 lat (usec): min=3281, max=88725, avg=16853.22, stdev=14870.09 clat percentiles (usec): | 1.00th=[ 3556], 5.00th=[ 4228], 10.00th=[ 4883], 20.00th=[ 6063], | 30.00th=[ 7373], 40.00th=[ 8979], 50.00th=[10683], 60.00th=[14222], | 70.00th=[18744], 80.00th=[25822], 90.00th=[37487], 95.00th=[49546], | 99.00th=[72877], 99.50th=[87557], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 127, max= 640, per=25.19%, avg=308.58, stdev=135.95, samples=38 iops : min= 7, max= 40, avg=18.87, stdev= 8.67, samples=38 write: IOPS=20, BW=324KiB/s (331kB/s)(6256KiB/19331msec); 0 zone resets clat (usec): min=15042, max=98692, avg=33132.25, stdev=14384.81 lat (usec): min=15043, max=98694, avg=33133.80, stdev=14384.91 clat percentiles (usec): | 1.00th=[16188], 5.00th=[17957], 10.00th=[19530], 20.00th=[22414], | 30.00th=[24249], 40.00th=[26870], 50.00th=[29492], 60.00th=[32375], | 70.00th=[35914], 80.00th=[41157], 90.00th=[51643], 95.00th=[61604], | 99.00th=[89654], 99.50th=[94897], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 127, max= 606, per=25.06%, avg=322.74, stdev=131.61, samples=38 iops : min= 7, max= 37, avg=19.76, stdev= 8.39, samples=38 lat (msec) : 4=1.43%, 10=21.35%, 20=18.62%, 50=50.52%, 100=8.07% cpu : usr=0.05%, sys=11.85%, ctx=1667, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1225KiB/s (1254kB/s), 294KiB/s-324KiB/s (301kB/s-331kB/s), io=23.4MiB (24.5MB), run=19331-19552msec WRITE: bw=1289KiB/s (1320kB/s), 312KiB/s-335KiB/s (319kB/s-343kB/s), io=24.6MiB (25.8MB), run=19331-19552msec 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=158655: Wed Jul 15 09:53:44 2026 read: IOPS=2, BW=2119KiB/s (2170kB/s)(7168KiB/3383msec) clat (msec): min=108, max=1854, avg=385.43, stdev=648.92 lat (msec): min=108, max=1854, avg=385.43, stdev=648.92 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 113], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 127], 60.00th=[ 180], | 70.00th=[ 180], 80.00th=[ 203], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 3506, max= 6144, per=79.71%, avg=4825.00, stdev=1865.35, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1513KiB/s (1550kB/s)(5120KiB/3383msec); 0 zone resets clat (msec): min=83, max=196, avg=132.28, stdev=43.39 lat (msec): min=83, max=196, avg=132.37, stdev=43.39 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 126], 60.00th=[ 126], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 2048, max= 6144, per=48.33%, avg=4096.00, stdev=2896.31, samples=2 iops : min= 2, max= 6, avg= 4.00, stdev= 2.83, samples=2 lat (msec) : 100=8.33%, 250=83.33%, 2000=8.33% cpu : usr=0.00%, sys=38.85%, ctx=1350, 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=158656: Wed Jul 15 09:53:44 2026 read: IOPS=0, BW=699KiB/s (716kB/s)(2048KiB/2929msec) clat (msec): min=142, max=149, avg=145.75, stdev= 4.78 lat (msec): min=142, max=149, avg=145.75, stdev= 4.78 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 1729, max= 2043, per=31.16%, avg=1886.00, stdev=222.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3496KiB/s (3580kB/s)(10.0MiB/2929msec); 0 zone resets clat (msec): min=115, max=709, avg=261.06, stdev=202.75 lat (msec): min=115, max=709, avg=261.12, stdev=202.75 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 120], | 30.00th=[ 122], 40.00th=[ 131], 50.00th=[ 136], 60.00th=[ 186], | 70.00th=[ 236], 80.00th=[ 351], 90.00th=[ 510], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 4096, max= 6144, per=64.39%, avg=5457.00, stdev=1178.68, samples=3 iops : min= 4, max= 6, avg= 5.00, stdev= 1.00, samples=3 lat (msec) : 250=75.00%, 500=8.33%, 750=16.67% cpu : usr=0.07%, sys=43.07%, ctx=385, 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=158657: Wed Jul 15 09:53:44 2026 read: IOPS=1, BW=1981KiB/s (2028kB/s)(6144KiB/3102msec) clat (usec): min=299, max=140708, avg=64068.00, stdev=70118.82 lat (usec): min=300, max=140710, avg=64069.10, stdev=70118.81 clat percentiles (usec): | 1.00th=[ 302], 5.00th=[ 302], 10.00th=[ 302], 20.00th=[ 449], | 30.00th=[ 449], 40.00th=[ 553], 50.00th=[ 553], 60.00th=[116917], | 70.00th=[125305], 80.00th=[125305], 90.00th=[141558], 95.00th=[141558], | 99.00th=[141558], 99.50th=[141558], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 2048, max= 4096, per=56.39%, avg=3413.33, stdev=1182.41, samples=3 iops : min= 2, max= 4, avg= 3.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1981KiB/s (2028kB/s)(6144KiB/3102msec); 0 zone resets clat (msec): min=120, max=1136, avg=451.50, stdev=383.70 lat (msec): min=120, max=1136, avg=451.56, stdev=383.67 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 443], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 2048, max= 3459, per=28.33%, avg=2400.75, stdev=705.50, samples=4 iops : min= 2, max= 3, avg= 2.25, stdev= 0.50, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=29.28%, ctx=424, 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=158658: Wed Jul 15 09:53:44 2026 read: IOPS=1, BW=1935KiB/s (1981kB/s)(5120KiB/2646msec) clat (usec): min=561, max=120622, avg=59766.18, stdev=56733.37 lat (usec): min=562, max=120623, avg=59767.33, stdev=56733.21 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 21103], 40.00th=[ 21103], 50.00th=[ 36439], 60.00th=[ 36439], | 70.00th=[120062], 80.00th=[120062], 90.00th=[121111], 95.00th=[121111], | 99.00th=[121111], 99.50th=[121111], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2709KiB/s (2774kB/s)(7168KiB/2646msec); 0 zone resets clat (msec): min=128, max=1084, avg=333.66, stdev=360.42 lat (msec): min=128, max=1084, avg=333.71, stdev=360.41 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 523], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1753, max= 6144, per=47.17%, avg=3997.67, stdev=2197.15, samples=3 iops : min= 1, max= 6, avg= 3.67, stdev= 2.52, samples=3 lat (usec) : 750=8.33% lat (msec) : 50=16.67%, 250=58.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=37.47%, ctx=332, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6054KiB/s (6199kB/s), 699KiB/s-2119KiB/s (716kB/s-2170kB/s), io=20.0MiB (20.0MB), run=2646-3383msec WRITE: bw=8475KiB/s (8679kB/s), 1513KiB/s-3496KiB/s (1550kB/s-3580kB/s), io=28.0MiB (29.4MB), run=2646-3383msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158660: Wed Jul 15 09:53:44 2026 read: IOPS=2, BW=2244KiB/s (2297kB/s)(7168KiB/3195msec) clat (msec): min=19, max=955, avg=362.70, stdev=376.58 lat (msec): min=19, max=955, avg=362.70, stdev=376.58 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 20], 10.00th=[ 20], 20.00th=[ 20], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 144], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 709], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1321, max= 3806, per=35.94%, avg=2303.50, stdev=1057.99, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1603KiB/s (1641kB/s)(5120KiB/3195msec); 0 zone resets clat (msec): min=38, max=230, avg=113.63, stdev=79.66 lat (msec): min=39, max=230, avg=113.72, stdev=79.64 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 40], 10.00th=[ 40], 20.00th=[ 40], | 30.00th=[ 52], 40.00th=[ 52], 50.00th=[ 92], 60.00th=[ 92], | 70.00th=[ 157], 80.00th=[ 157], 90.00th=[ 230], 95.00th=[ 230], | 99.00th=[ 230], 99.50th=[ 230], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 2039, max= 2039, per=22.72%, avg=2039.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 20=16.67%, 50=8.33%, 100=16.67%, 250=33.33%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=12.52%, ctx=194, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158661: Wed Jul 15 09:53:44 2026 read: IOPS=0, BW=645KiB/s (661kB/s)(2048KiB/3175msec) clat (msec): min=57, max=101, avg=79.46, stdev=31.34 lat (msec): min=57, max=101, avg=79.46, stdev=31.34 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 58], | 30.00th=[ 58], 40.00th=[ 58], 50.00th=[ 58], 60.00th=[ 102], | 70.00th=[ 102], 80.00th=[ 102], 90.00th=[ 102], 95.00th=[ 102], | 99.00th=[ 102], 99.50th=[ 102], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 1889, max= 2048, per=30.71%, avg=1968.50, stdev=112.43, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3225KiB/s (3303kB/s)(10.0MiB/3175msec); 0 zone resets clat (msec): min=34, max=1132, avg=287.79, stdev=350.22 lat (msec): min=34, max=1132, avg=287.87, stdev=350.22 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 100], 50.00th=[ 123], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 384], 90.00th=[ 651], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1943, max= 8192, per=50.78%, avg=4557.25, stdev=3128.43, samples=4 iops : min= 1, max= 8, avg= 4.00, stdev= 3.56, samples=4 lat (msec) : 50=8.33%, 100=33.33%, 250=33.33%, 500=8.33%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=15.15%, ctx=112, 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=158662: Wed Jul 15 09:53:44 2026 read: IOPS=1, BW=1965KiB/s (2013kB/s)(6144KiB/3126msec) clat (msec): min=32, max=179, avg=99.25, stdev=58.94 lat (msec): min=32, max=179, avg=99.25, stdev=58.94 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 33], 10.00th=[ 33], 20.00th=[ 56], | 30.00th=[ 56], 40.00th=[ 66], 50.00th=[ 66], 60.00th=[ 105], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 180], 95.00th=[ 180], | 99.00th=[ 180], 99.50th=[ 180], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 1950, max= 4096, per=52.74%, avg=3380.67, stdev=1238.99, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1965KiB/s (2013kB/s)(6144KiB/3126msec); 0 zone resets clat (msec): min=66, max=1083, avg=403.22, stdev=413.92 lat (msec): min=66, max=1084, avg=403.29, stdev=413.93 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 130], 50.00th=[ 130], 60.00th=[ 305], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1943, max= 3976, per=33.06%, avg=2966.75, stdev=1122.75, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=41.67%, 500=8.33%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=13.06%, ctx=79, 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=158663: Wed Jul 15 09:53:44 2026 read: IOPS=1, BW=1662KiB/s (1702kB/s)(5120KiB/3081msec) clat (msec): min=48, max=228, avg=98.37, stdev=77.10 lat (msec): min=48, max=228, avg=98.38, stdev=77.10 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 49], 10.00th=[ 49], 20.00th=[ 49], | 30.00th=[ 50], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 57], | 70.00th=[ 109], 80.00th=[ 109], 90.00th=[ 230], 95.00th=[ 230], | 99.00th=[ 230], 99.50th=[ 230], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 4096, max= 4096, per=63.90%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2327KiB/s (2382kB/s)(7168KiB/3081msec); 0 zone resets clat (msec): min=81, max=964, avg=350.82, stdev=332.67 lat (msec): min=81, max=964, avg=350.89, stdev=332.66 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 114], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 174], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 625], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1878, max= 4096, per=29.41%, avg=2639.00, stdev=1262.22, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 50=16.67%, 100=16.67%, 250=41.67%, 500=8.33%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=18.51%, ctx=148, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6410KiB/s (6564kB/s), 645KiB/s-2244KiB/s (661kB/s-2297kB/s), io=20.0MiB (20.0MB), run=3081-3195msec WRITE: bw=8974KiB/s (9189kB/s), 1603KiB/s-3225KiB/s (1641kB/s-3303kB/s), io=28.0MiB (29.4MB), run=3081-3195msec 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=158669: Wed Jul 15 09:53:52 2026 read: IOPS=3, BW=13.5MiB/s (14.1MB/s)(12.0MiB/890msec) clat (msec): min=149, max=490, avg=285.68, stdev=180.40 lat (msec): min=149, max=490, avg=285.68, stdev=180.39 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min=14681, max=14681, per=100.00%, avg=14681.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=28.23%, ctx=65, 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=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=158671: Wed Jul 15 09:53:52 2026 read: IOPS=0, BW=1806KiB/s (1849kB/s)(4096KiB/2268msec) clat (nsec): min=554811k, max=554811k, avg=554811175.00, stdev= 0.00 lat (nsec): min=554813k, max=554813k, avg=554813305.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3612KiB/s (3699kB/s)(8192KiB/2268msec); 0 zone resets clat (msec): min=599, max=1074, avg=836.79, stdev=335.53 lat (msec): min=599, max=1074, avg=837.07, stdev=335.51 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7515, max= 7515, per=52.02%, avg=7515.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=12.35%, ctx=73, 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=158672: Wed Jul 15 09:53:52 2026 write: IOPS=1, BW=5710KiB/s (5847kB/s)(12.0MiB/2152msec); 0 zone resets clat (msec): min=401, max=927, avg=702.58, stdev=271.14 lat (msec): min=401, max=927, avg=702.90, stdev=271.16 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 8031, max= 8192, per=56.15%, avg=8111.50, stdev=113.84, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.05%, sys=22.55%, ctx=126, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=158673: Wed Jul 15 09:53:52 2026 write: IOPS=2, BW=10.2MiB/s (10.7MB/s)(12.0MiB/1180msec); 0 zone resets clat (msec): min=192, max=561, avg=387.31, stdev=185.35 lat (msec): min=193, max=562, avg=387.54, stdev=185.41 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7953, max= 8192, per=55.88%, avg=8072.50, stdev=169.00, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=17.90%, ctx=51, 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=7224KiB/s (7397kB/s), 1806KiB/s-13.5MiB/s (1849kB/s-14.1MB/s), io=16.0MiB (16.8MB), run=890-2268msec WRITE: bw=14.1MiB/s (14.8MB/s), 3612KiB/s-10.2MiB/s (3699kB/s-10.7MB/s), io=32.0MiB (33.6MB), run=1180-2268msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158674: Wed Jul 15 09:53:52 2026 read: IOPS=1, BW=6474KiB/s (6630kB/s)(12.0MiB/1898msec) clat (msec): min=429, max=805, avg=617.52, stdev=188.49 lat (msec): min=429, max=805, avg=617.52, stdev=188.49 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7757, max= 7876, per=90.55%, avg=7816.50, stdev=84.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=45.33%, ctx=2223, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158675: Wed Jul 15 09:53:52 2026 read: IOPS=0, BW=2188KiB/s (2241kB/s)(4096KiB/1872msec) clat (nsec): min=413767k, max=413767k, avg=413766866.00, stdev= 0.00 lat (nsec): min=413769k, max=413769k, avg=413768540.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7892, max= 7892, per=91.43%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4376KiB/s (4481kB/s)(8192KiB/1872msec); 0 zone resets clat (msec): min=496, max=908, avg=702.83, stdev=291.33 lat (msec): min=497, max=909, avg=703.11, stdev=291.35 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 911], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 8192, max= 8192, per=54.88%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.25%, ctx=868, 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=158676: Wed Jul 15 09:53:52 2026 write: IOPS=1, BW=5598KiB/s (5733kB/s)(12.0MiB/2195msec); 0 zone resets clat (msec): min=183, max=985, avg=710.54, stdev=456.61 lat (msec): min=183, max=985, avg=710.82, stdev=456.60 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 986], 80.00th=[ 986], 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= 7876, max= 8192, per=53.82%, avg=8034.00, stdev=223.45, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.05%, sys=11.30%, ctx=69, 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=158677: Wed Jul 15 09:53:52 2026 write: IOPS=1, BW=7148KiB/s (7320kB/s)(12.0MiB/1719msec); 0 zone resets clat (msec): min=349, max=786, avg=564.67, stdev=218.65 lat (msec): min=350, max=787, avg=564.98, stdev=218.66 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7876, max= 8192, per=53.82%, avg=8034.00, stdev=223.45, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.06%, sys=24.21%, ctx=296, 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=8632KiB/s (8839kB/s), 2188KiB/s-6474KiB/s (2241kB/s-6630kB/s), io=16.0MiB (16.8MB), run=1872-1898msec WRITE: bw=14.6MiB/s (15.3MB/s), 4376KiB/s-7148KiB/s (4481kB/s-7320kB/s), io=32.0MiB (33.6MB), run=1719-2195msec