== sanity test 398b: DIO and buffer IO race ============== 11:47:23 (1772470043) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.73271 s, 7.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146851: Mon Mar 2 11:49:55 2026 read: IOPS=11, BW=44.9KiB/s (45.9kB/s)(5992KiB/133536msec) clat (usec): min=100, max=584685, avg=44559.12, stdev=37265.34 lat (usec): min=101, max=584687, avg=44563.35, stdev=37269.73 clat percentiles (usec): | 1.00th=[ 137], 5.00th=[ 176], 10.00th=[ 9634], 20.00th=[ 19792], | 30.00th=[ 25297], 40.00th=[ 31327], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[107480], | 99.00th=[154141], 99.50th=[166724], 99.90th=[358613], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 118, per=24.90%, avg=44.57, stdev=19.95, samples=261 iops : min= 1, max= 29, avg=10.49, stdev= 5.01, samples=261 write: IOPS=11, BW=47.1KiB/s (48.3kB/s)(6296KiB/133536msec); 0 zone resets clat (usec): min=935, max=472045, avg=42137.29, stdev=45119.62 lat (usec): min=936, max=472047, avg=42140.82, stdev=45118.87 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1385], 20.00th=[ 3589], | 30.00th=[ 8291], 40.00th=[ 17957], 50.00th=[ 28443], 60.00th=[ 42206], | 70.00th=[ 54264], 80.00th=[ 72877], 90.00th=[103285], 95.00th=[132645], | 99.00th=[189793], 99.50th=[210764], 99.90th=[278922], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 120, per=25.05%, avg=46.85, stdev=21.15, samples=261 iops : min= 1, max= 30, avg=11.06, stdev= 5.35, samples=261 lat (usec) : 250=3.65%, 500=0.36%, 750=0.07%, 1000=0.20% lat (msec) : 2=6.90%, 4=4.39%, 10=5.96%, 20=9.73%, 50=35.48% lat (msec) : 100=24.71%, 250=8.24%, 500=0.29%, 750=0.03% cpu : usr=0.07%, sys=4.46%, ctx=6303, 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=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=146852: Mon Mar 2 11:49:55 2026 read: IOPS=11, BW=44.7KiB/s (45.7kB/s)(5940KiB/133022msec) clat (usec): min=57, max=464203, avg=45274.41, stdev=37727.97 lat (usec): min=57, max=464206, avg=45276.49, stdev=37727.76 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 180], 10.00th=[ 7767], 20.00th=[ 19268], | 30.00th=[ 25297], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[107480], | 99.00th=[164627], 99.50th=[221250], 99.90th=[375391], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 6, max= 119, per=24.67%, avg=44.16, stdev=21.13, samples=262 iops : min= 1, max= 29, avg=10.38, stdev= 5.30, samples=262 write: IOPS=11, BW=47.7KiB/s (48.9kB/s)(6348KiB/133022msec); 0 zone resets clat (usec): min=777, max=573869, avg=41196.25, stdev=43721.13 lat (usec): min=778, max=573871, avg=41202.72, stdev=43719.20 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1188], 10.00th=[ 1483], 20.00th=[ 3982], | 30.00th=[ 8455], 40.00th=[ 17433], 50.00th=[ 28967], 60.00th=[ 40633], | 70.00th=[ 54789], 80.00th=[ 72877], 90.00th=[ 99091], 95.00th=[126354], | 99.00th=[175113], 99.50th=[198181], 99.90th=[240124], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 127, per=25.41%, avg=47.51, stdev=21.18, samples=260 iops : min= 1, max= 31, avg=11.22, stdev= 5.33, samples=260 lat (usec) : 100=0.03%, 250=3.48%, 500=0.49%, 750=0.16%, 1000=0.46% lat (msec) : 2=6.54%, 4=3.84%, 10=6.90%, 20=9.90%, 50=34.51% lat (msec) : 100=25.39%, 250=8.07%, 500=0.20%, 750=0.03% cpu : usr=0.07%, sys=4.61%, ctx=6336, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=146853: Mon Mar 2 11:49:55 2026 read: IOPS=11, BW=45.0KiB/s (46.1kB/s)(6028KiB/133882msec) clat (usec): min=107, max=611906, avg=43302.23, stdev=36425.79 lat (usec): min=107, max=611908, avg=43303.78, stdev=36425.86 clat percentiles (usec): | 1.00th=[ 128], 5.00th=[ 169], 10.00th=[ 1352], 20.00th=[ 18482], | 30.00th=[ 24249], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 64750], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[152044], 99.50th=[187696], 99.90th=[404751], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 6, max= 116, per=24.79%, avg=44.38, stdev=21.46, samples=264 iops : min= 1, max= 29, avg=10.44, stdev= 5.41, samples=264 write: IOPS=11, BW=46.8KiB/s (47.9kB/s)(6260KiB/133882msec); 0 zone resets clat (usec): min=737, max=475500, avg=43605.58, stdev=45918.32 lat (usec): min=739, max=475503, avg=43610.51, stdev=45918.37 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1139], 10.00th=[ 1369], 20.00th=[ 3752], | 30.00th=[ 8848], 40.00th=[ 19268], 50.00th=[ 31065], 60.00th=[ 42730], | 70.00th=[ 56361], 80.00th=[ 74974], 90.00th=[106431], 95.00th=[135267], | 99.00th=[183501], 99.50th=[212861], 99.90th=[295699], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 7, max= 136, per=24.73%, avg=46.24, stdev=20.04, samples=263 iops : min= 1, max= 34, avg=10.90, stdev= 5.06, samples=263 lat (usec) : 250=4.07%, 500=0.39%, 750=0.20%, 1000=0.59% lat (msec) : 2=6.97%, 4=3.42%, 10=6.12%, 20=9.54%, 50=35.09% lat (msec) : 100=24.74%, 250=8.76%, 500=0.10%, 750=0.03% cpu : usr=0.07%, sys=4.57%, ctx=6310, 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=146854: Mon Mar 2 11:49:55 2026 read: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6052KiB/133575msec) clat (usec): min=105, max=418216, avg=43158.77, stdev=33175.75 lat (usec): min=105, max=418217, avg=43160.79, stdev=33175.20 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 174], 10.00th=[ 537], 20.00th=[ 19268], | 30.00th=[ 25297], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[141558], 99.50th=[170918], 99.90th=[246416], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 119, per=25.35%, avg=45.38, stdev=20.00, samples=259 iops : min= 1, max= 29, avg=10.69, stdev= 5.02, samples=259 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6236KiB/133575msec); 0 zone resets clat (usec): min=645, max=781813, avg=43517.15, stdev=51445.53 lat (usec): min=646, max=781816, avg=43521.88, stdev=51444.52 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1401], 20.00th=[ 3851], | 30.00th=[ 8586], 40.00th=[ 19006], 50.00th=[ 31065], 60.00th=[ 43254], | 70.00th=[ 55313], 80.00th=[ 71828], 90.00th=[102237], 95.00th=[131597], | 99.00th=[187696], 99.50th=[274727], 99.90th=[530580], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 95, per=24.69%, avg=46.18, stdev=18.52, samples=262 iops : min= 1, max= 23, avg=10.89, stdev= 4.66, samples=262 lat (usec) : 250=4.07%, 500=0.78%, 750=0.33%, 1000=0.29% lat (msec) : 2=6.97%, 4=3.55%, 10=6.51%, 20=8.76%, 50=35.03% lat (msec) : 100=25.75%, 250=7.65%, 500=0.26%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.57%, ctx=6224, 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=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=179KiB/s (184kB/s), 44.7KiB/s-45.3KiB/s (45.7kB/s-46.4kB/s), io=23.4MiB (24.6MB), run=133022-133882msec WRITE: bw=188KiB/s (192kB/s), 46.7KiB/s-47.7KiB/s (47.8kB/s-48.9kB/s), io=24.6MiB (25.7MB), run=133022-133882msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146847: Mon Mar 2 11:52:10 2026 read: IOPS=5, BW=22.3KiB/s (22.8kB/s)(5992KiB/268544msec) clat (msec): min=5, max=626, avg=35.55, stdev=41.85 lat (msec): min=5, max=626, avg=35.55, stdev=41.85 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 82], 95.00th=[ 110], | 99.00th=[ 192], 99.50th=[ 279], 99.90th=[ 422], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 95, per=28.51%, avg=25.37, stdev=18.06, samples=455 iops : min= 1, max= 23, avg= 5.70, stdev= 4.54, samples=455 write: IOPS=5, BW=23.4KiB/s (24.0kB/s)(6296KiB/268544msec); 0 zone resets clat (msec): min=30, max=576, avg=136.55, stdev=74.03 lat (msec): min=30, max=576, avg=136.55, stdev=74.03 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 116], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 405], 99.50th=[ 460], 99.90th=[ 531], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 56, per=24.93%, avg=23.19, stdev=11.66, samples=521 iops : min= 1, max= 14, avg= 5.15, stdev= 2.97, samples=521 lat (msec) : 10=5.63%, 20=16.99%, 50=17.87%, 100=24.28%, 250=30.70% lat (msec) : 500=4.39%, 750=0.13% cpu : usr=0.05%, sys=1.02%, ctx=5036, 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=146848: Mon Mar 2 11:52:10 2026 read: IOPS=5, BW=22.1KiB/s (22.7kB/s)(5940KiB/268276msec) clat (msec): min=4, max=694, avg=35.13, stdev=39.18 lat (msec): min=4, max=694, avg=35.13, stdev=39.18 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 81], 95.00th=[ 107], | 99.00th=[ 197], 99.50th=[ 211], 99.90th=[ 271], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 96, per=29.09%, avg=25.89, stdev=17.39, samples=443 iops : min= 1, max= 24, avg= 5.84, stdev= 4.40, samples=443 write: IOPS=5, BW=23.7KiB/s (24.2kB/s)(6348KiB/268276msec); 0 zone resets clat (msec): min=25, max=637, avg=135.94, stdev=73.65 lat (msec): min=25, max=637, avg=135.94, stdev=73.66 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 130], | 70.00th=[ 150], 80.00th=[ 180], 90.00th=[ 236], 95.00th=[ 288], | 99.00th=[ 372], 99.50th=[ 485], 99.90th=[ 584], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 56, per=25.12%, avg=23.36, stdev=11.48, samples=523 iops : min= 1, max= 14, avg= 5.19, stdev= 2.92, samples=523 lat (msec) : 10=3.87%, 20=18.72%, 50=17.64%, 100=25.07%, 250=30.40% lat (msec) : 500=4.07%, 750=0.23% cpu : usr=0.04%, sys=1.09%, ctx=5165, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146849: Mon Mar 2 11:52:10 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(6028KiB/266327msec) clat (msec): min=4, max=423, avg=36.33, stdev=40.00 lat (msec): min=4, max=423, avg=36.33, stdev=40.00 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 82], 95.00th=[ 113], | 99.00th=[ 192], 99.50th=[ 266], 99.90th=[ 363], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 119, per=27.45%, avg=24.43, stdev=17.23, samples=476 iops : min= 1, max= 29, avg= 5.47, stdev= 4.35, samples=476 write: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6260KiB/266327msec); 0 zone resets clat (msec): min=30, max=858, avg=134.96, stdev=74.78 lat (msec): min=30, max=858, avg=134.96, stdev=74.78 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 128], | 70.00th=[ 148], 80.00th=[ 184], 90.00th=[ 232], 95.00th=[ 284], | 99.00th=[ 384], 99.50th=[ 447], 99.90th=[ 584], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 63, per=25.47%, avg=23.68, stdev=11.89, samples=509 iops : min= 1, max= 15, avg= 5.27, stdev= 3.02, samples=509 lat (msec) : 10=5.27%, 20=16.41%, 50=18.39%, 100=25.03%, 250=30.70% lat (msec) : 500=4.07%, 750=0.10%, 1000=0.03% cpu : usr=0.03%, sys=1.04%, ctx=5005, 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=146850: Mon Mar 2 11:52:10 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(6052KiB/267596msec) clat (msec): min=4, max=509, avg=35.18, stdev=39.62 lat (msec): min=4, max=509, avg=35.19, stdev=39.62 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 81], 95.00th=[ 114], | 99.00th=[ 201], 99.50th=[ 226], 99.90th=[ 347], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 119, per=29.27%, avg=26.05, stdev=18.52, samples=448 iops : min= 1, max= 29, avg= 5.87, stdev= 4.68, samples=448 write: IOPS=5, BW=23.3KiB/s (23.9kB/s)(6236KiB/267596msec); 0 zone resets clat (msec): min=33, max=770, avg=137.28, stdev=76.46 lat (msec): min=33, max=770, avg=137.28, stdev=76.46 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 116], 60.00th=[ 131], | 70.00th=[ 150], 80.00th=[ 186], 90.00th=[ 234], 95.00th=[ 284], | 99.00th=[ 418], 99.50th=[ 485], 99.90th=[ 584], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 55, per=24.91%, avg=23.17, stdev=11.73, samples=517 iops : min= 1, max= 13, avg= 5.14, stdev= 2.98, samples=517 lat (msec) : 10=4.46%, 20=18.39%, 50=18.13%, 100=24.22%, 250=30.57% lat (msec) : 500=4.04%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.09%, ctx=5175, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=89.4KiB/s (91.6kB/s), 22.1KiB/s-22.6KiB/s (22.7kB/s-23.2kB/s), io=23.4MiB (24.6MB), run=266327-268544msec WRITE: bw=93.6KiB/s (95.9kB/s), 23.3KiB/s-23.7KiB/s (23.9kB/s-24.2kB/s), io=24.6MiB (25.7MB), run=266327-268544msec 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=146912: Mon Mar 2 11:52:50 2026 read: IOPS=13, BW=213KiB/s (219kB/s)(5920KiB/27729msec) clat (usec): min=115, max=274106, avg=39413.38, stdev=33099.19 lat (usec): min=115, max=274108, avg=39417.19, stdev=33096.92 clat percentiles (usec): | 1.00th=[ 129], 5.00th=[ 149], 10.00th=[ 161], 20.00th=[ 603], | 30.00th=[ 24511], 40.00th=[ 29492], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 61604], 90.00th=[ 74974], 95.00th=[ 88605], | 99.00th=[145753], 99.50th=[233833], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 63, max= 508, per=25.03%, avg=212.78, stdev=81.42, samples=54 iops : min= 3, max= 31, avg=12.56, stdev= 5.13, samples=54 write: IOPS=14, BW=230KiB/s (235kB/s)(6368KiB/27729msec); 0 zone resets clat (usec): min=1317, max=223922, avg=31883.30, stdev=34961.17 lat (usec): min=1319, max=223924, avg=31896.38, stdev=34955.22 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1680], 10.00th=[ 1975], 20.00th=[ 3982], | 30.00th=[ 6259], 40.00th=[ 9896], 50.00th=[ 19268], 60.00th=[ 27919], | 70.00th=[ 41157], 80.00th=[ 57410], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[143655], 99.50th=[181404], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 22, max= 475, per=25.80%, avg=230.65, stdev=98.16, samples=54 iops : min= 1, max= 29, avg=13.67, stdev= 6.17, samples=54 lat (usec) : 250=9.11%, 500=0.39%, 750=0.13% lat (msec) : 2=5.34%, 4=5.60%, 10=11.20%, 20=6.51%, 50=32.81% lat (msec) : 100=24.61%, 250=4.17%, 500=0.13% cpu : usr=0.10%, sys=5.72%, ctx=1444, 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=146914: Mon Mar 2 11:52:50 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(5744KiB/28173msec) clat (usec): min=116, max=239813, avg=41570.54, stdev=36881.01 lat (usec): min=117, max=239814, avg=41586.87, stdev=36883.30 clat percentiles (usec): | 1.00th=[ 119], 5.00th=[ 151], 10.00th=[ 167], 20.00th=[ 6128], | 30.00th=[ 21890], 40.00th=[ 28967], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 81265], 95.00th=[110625], | 99.00th=[181404], 99.50th=[225444], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 31, max= 383, per=23.86%, avg=202.78, stdev=78.27, samples=55 iops : min= 1, max= 23, avg=11.89, stdev= 4.93, samples=55 write: IOPS=14, BW=232KiB/s (238kB/s)(6544KiB/28173msec); 0 zone resets clat (usec): min=1170, max=173368, avg=31852.74, stdev=34007.65 lat (usec): min=1171, max=173370, avg=31855.77, stdev=34010.16 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1680], 10.00th=[ 1893], 20.00th=[ 4359], | 30.00th=[ 7570], 40.00th=[ 11469], 50.00th=[ 17957], 60.00th=[ 26870], | 70.00th=[ 41681], 80.00th=[ 60031], 90.00th=[ 88605], 95.00th=[ 96994], | 99.00th=[137364], 99.50th=[143655], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 604, per=25.65%, avg=229.29, stdev=112.52, samples=55 iops : min= 1, max= 37, avg=13.58, stdev= 7.09, samples=55 lat (usec) : 250=7.81%, 500=0.26%, 750=0.26% lat (msec) : 2=6.51%, 4=4.04%, 10=9.77%, 20=12.37%, 50=30.99% lat (msec) : 100=22.53%, 250=5.47% cpu : usr=0.08%, sys=5.32%, ctx=1402, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146916: Mon Mar 2 11:52:50 2026 read: IOPS=14, BW=226KiB/s (232kB/s)(6256KiB/27624msec) clat (usec): min=101, max=256796, avg=37595.80, stdev=31841.91 lat (usec): min=103, max=256797, avg=37597.45, stdev=31841.94 clat percentiles (usec): | 1.00th=[ 114], 5.00th=[ 147], 10.00th=[ 163], 20.00th=[ 1516], | 30.00th=[ 21627], 40.00th=[ 28443], 50.00th=[ 33817], 60.00th=[ 42206], | 70.00th=[ 48497], 80.00th=[ 56361], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[141558], 99.50th=[191890], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 63, max= 445, per=27.43%, avg=233.19, stdev=92.27, samples=53 iops : min= 3, max= 27, avg=13.83, stdev= 5.80, samples=53 write: IOPS=13, BW=218KiB/s (224kB/s)(6032KiB/27624msec); 0 zone resets clat (usec): min=1039, max=232363, avg=32878.19, stdev=34357.10 lat (usec): min=1041, max=232365, avg=32888.53, stdev=34352.65 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1729], 10.00th=[ 2835], 20.00th=[ 6128], | 30.00th=[ 9110], 40.00th=[ 13829], 50.00th=[ 20579], 60.00th=[ 30278], | 70.00th=[ 41681], 80.00th=[ 54264], 90.00th=[ 79168], 95.00th=[109577], | 99.00th=[152044], 99.50th=[173016], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 22, max= 413, per=24.40%, avg=218.09, stdev=92.48, samples=54 iops : min= 1, max= 25, avg=12.89, stdev= 5.81, samples=54 lat (usec) : 250=9.38%, 500=0.52%, 750=0.13% lat (msec) : 2=3.65%, 4=3.78%, 10=9.51%, 20=10.81%, 50=36.72% lat (msec) : 100=20.57%, 250=4.82%, 500=0.13% cpu : usr=0.05%, sys=5.55%, ctx=1444, 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=146918: Mon Mar 2 11:52:50 2026 read: IOPS=13, BW=220KiB/s (226kB/s)(6032KiB/27368msec) clat (usec): min=104, max=254211, avg=35992.68, stdev=34575.08 lat (usec): min=104, max=254212, avg=35993.95, stdev=34575.14 clat percentiles (usec): | 1.00th=[ 115], 5.00th=[ 147], 10.00th=[ 159], 20.00th=[ 293], | 30.00th=[ 15664], 40.00th=[ 25035], 50.00th=[ 31589], 60.00th=[ 38536], | 70.00th=[ 45351], 80.00th=[ 58983], 90.00th=[ 76022], 95.00th=[ 88605], | 99.00th=[177210], 99.50th=[248513], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 31, max= 413, per=26.18%, avg=222.54, stdev=91.36, samples=52 iops : min= 1, max= 25, avg=13.15, stdev= 5.77, samples=52 write: IOPS=14, BW=229KiB/s (234kB/s)(6256KiB/27368msec); 0 zone resets clat (usec): min=810, max=228346, avg=34105.23, stdev=37042.21 lat (usec): min=811, max=228348, avg=34113.47, stdev=37049.20 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1582], 10.00th=[ 2024], 20.00th=[ 4424], | 30.00th=[ 6980], 40.00th=[ 10945], 50.00th=[ 21103], 60.00th=[ 33162], | 70.00th=[ 46400], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[104334], | 99.00th=[181404], 99.50th=[208667], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 61, max= 480, per=25.43%, avg=227.32, stdev=97.68, samples=53 iops : min= 3, max= 30, avg=13.45, stdev= 6.18, samples=53 lat (usec) : 250=9.51%, 500=1.17%, 750=0.13%, 1000=0.52% lat (msec) : 2=5.34%, 4=4.17%, 10=11.20%, 20=9.77%, 50=30.86% lat (msec) : 100=22.79%, 250=4.43%, 500=0.13% cpu : usr=0.10%, sys=5.26%, ctx=1392, 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=850KiB/s (871kB/s), 204KiB/s-226KiB/s (209kB/s-232kB/s), io=23.4MiB (24.5MB), run=27368-28173msec WRITE: bw=894KiB/s (916kB/s), 218KiB/s-232KiB/s (224kB/s-238kB/s), io=24.6MiB (25.8MB), run=27368-28173msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146913: Mon Mar 2 11:53:27 2026 read: IOPS=5, BW=92.0KiB/s (94.2kB/s)(5920KiB/64324msec) clat (msec): min=4, max=251, avg=33.24, stdev=32.62 lat (msec): min=4, max=251, avg=33.24, stdev=32.62 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 73], 95.00th=[ 101], | 99.00th=[ 148], 99.50th=[ 247], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 30, max= 319, per=27.90%, avg=102.38, stdev=61.39, samples=112 iops : min= 1, max= 19, avg= 5.65, stdev= 3.90, samples=112 write: IOPS=6, BW=98.0KiB/s (101kB/s)(6368KiB/64324msec); 0 zone resets clat (msec): min=34, max=441, avg=130.25, stdev=67.59 lat (msec): min=34, max=441, avg=130.25, stdev=67.59 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 226], 95.00th=[ 279], | 99.00th=[ 368], 99.50th=[ 397], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 21, max= 192, per=25.42%, avg=98.39, stdev=45.98, samples=126 iops : min= 1, max= 12, avg= 5.39, stdev= 2.96, samples=126 lat (msec) : 10=3.78%, 20=18.10%, 50=18.49%, 100=26.17%, 250=29.69% lat (msec) : 500=3.78% cpu : usr=0.03%, sys=1.17%, ctx=1301, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146915: Mon Mar 2 11:53:27 2026 read: IOPS=5, BW=88.2KiB/s (90.3kB/s)(5744KiB/65102msec) clat (msec): min=6, max=267, avg=33.83, stdev=36.62 lat (msec): min=6, max=267, avg=33.83, stdev=36.62 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 43], 90.00th=[ 71], 95.00th=[ 120], | 99.00th=[ 190], 99.50th=[ 247], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 21, max= 411, per=28.00%, avg=102.76, stdev=73.02, samples=109 iops : min= 1, max= 25, avg= 5.67, stdev= 4.62, samples=109 write: IOPS=6, BW=101KiB/s (103kB/s)(6544KiB/65102msec); 0 zone resets clat (msec): min=37, max=449, avg=128.50, stdev=65.11 lat (msec): min=37, max=449, avg=128.51, stdev=65.11 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 355], 99.50th=[ 380], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 21, max= 254, per=26.71%, avg=103.35, stdev=45.47, samples=124 iops : min= 1, max= 15, avg= 5.70, stdev= 2.88, samples=124 lat (msec) : 10=3.91%, 20=17.45%, 50=19.53%, 100=23.18%, 250=32.55% lat (msec) : 500=3.39% cpu : usr=0.05%, sys=1.30%, ctx=1359, 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=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=146917: Mon Mar 2 11:53:27 2026 read: IOPS=6, BW=102KiB/s (105kB/s)(6256KiB/61291msec) clat (msec): min=4, max=240, avg=31.19, stdev=30.69 lat (msec): min=4, max=240, avg=31.20, stdev=30.69 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 40], 90.00th=[ 65], 95.00th=[ 95], | 99.00th=[ 153], 99.50th=[ 234], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 30, max= 382, per=30.77%, avg=112.94, stdev=79.12, samples=109 iops : min= 1, max= 23, avg= 6.32, stdev= 4.95, samples=109 write: IOPS=6, BW=98.4KiB/s (101kB/s)(6032KiB/61291msec); 0 zone resets clat (msec): min=42, max=482, avg=129.27, stdev=66.91 lat (msec): min=42, max=482, avg=129.27, stdev=66.91 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 111], 60.00th=[ 126], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 220], 95.00th=[ 262], | 99.00th=[ 380], 99.50th=[ 414], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 31, max= 224, per=25.30%, avg=97.93, stdev=44.43, samples=120 iops : min= 1, max= 14, avg= 5.36, stdev= 2.89, samples=120 lat (msec) : 10=4.43%, 20=20.31%, 50=19.40%, 100=25.39%, 250=27.34% lat (msec) : 500=3.12% cpu : usr=0.04%, sys=1.20%, ctx=1324, 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=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=146919: Mon Mar 2 11:53:27 2026 read: IOPS=6, BW=96.4KiB/s (98.7kB/s)(6032KiB/62593msec) clat (msec): min=5, max=277, avg=36.05, stdev=40.56 lat (msec): min=5, max=277, avg=36.05, stdev=40.56 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 44], 90.00th=[ 83], 95.00th=[ 108], | 99.00th=[ 228], 99.50th=[ 247], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 30, max= 288, per=28.63%, avg=105.07, stdev=71.68, samples=112 iops : min= 1, max= 18, avg= 5.81, stdev= 4.55, samples=112 write: IOPS=6, BW=99.9KiB/s (102kB/s)(6256KiB/62593msec); 0 zone resets clat (msec): min=40, max=357, avg=125.04, stdev=57.68 lat (msec): min=40, max=357, avg=125.04, stdev=57.68 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 111], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 211], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 31, max= 223, per=25.74%, avg=99.61, stdev=47.59, samples=123 iops : min= 1, max= 13, avg= 5.46, stdev= 3.05, samples=123 lat (msec) : 10=3.12%, 20=18.23%, 50=19.92%, 100=24.48%, 250=31.90% lat (msec) : 500=2.34% cpu : usr=0.03%, sys=1.37%, ctx=1324, 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=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=368KiB/s (377kB/s), 88.2KiB/s-102KiB/s (90.3kB/s-105kB/s), io=23.4MiB (24.5MB), run=61291-65102msec WRITE: bw=387KiB/s (396kB/s), 98.4KiB/s-101KiB/s (101kB/s-103kB/s), io=24.6MiB (25.8MB), run=61291-65102msec 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=146939: Mon Mar 2 11:53:46 2026 read: IOPS=1, BW=1171KiB/s (1199kB/s)(7168KiB/6121msec) clat (usec): min=627, max=3186.2k, avg=631795.44, stdev=1138264.35 lat (usec): min=628, max=3186.2k, avg=631797.21, stdev=1138264.35 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], | 20.00th=[ 1139], 30.00th=[ 235930], 40.00th=[ 235930], | 50.00th=[ 244319], 60.00th=[ 287310], 70.00th=[ 287310], | 80.00th=[ 467665], 90.00th=[3170894], 95.00th=[3170894], | 99.00th=[3170894], 99.50th=[3170894], 99.90th=[3170894], | 99.95th=[3170894], 99.99th=[3170894] bw ( KiB/s): min= 1845, max= 2043, per=71.55%, avg=1979.80, stdev=79.71, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=0, BW=836KiB/s (857kB/s)(5120KiB/6121msec); 0 zone resets clat (msec): min=190, max=467, avg=304.58, stdev=117.22 lat (msec): min=190, max=467, avg=305.39, stdev=116.61 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1980, max= 2011, per=51.50%, avg=1995.50, stdev=21.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.34%, ctx=623, 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=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=146940: Mon Mar 2 11:53:46 2026 read: IOPS=0, BW=277KiB/s (283kB/s)(2048KiB/7399msec) clat (msec): min=237, max=369, avg=303.23, stdev=93.18 lat (msec): min=237, max=369, avg=303.24, stdev=93.18 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 1835, max= 2035, per=69.93%, avg=1935.00, stdev=141.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1384KiB/s (1417kB/s)(10.0MiB/7399msec); 0 zone resets clat (msec): min=92, max=3616, avg=660.96, stdev=1072.37 lat (msec): min=92, max=3617, avg=661.17, stdev=1072.72 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 100], | 30.00th=[ 100], 40.00th=[ 159], 50.00th=[ 207], 60.00th=[ 380], | 70.00th=[ 451], 80.00th=[ 575], 90.00th=[ 927], 95.00th=[ 3608], | 99.00th=[ 3608], 99.50th=[ 3608], 99.90th=[ 3608], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 2035, max= 6071, per=100.00%, avg=4003.25, stdev=1648.70, samples=4 iops : min= 1, max= 5, avg= 3.00, stdev= 1.63, samples=4 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=5.45%, ctx=134, 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=146941: Mon Mar 2 11:53:46 2026 read: IOPS=0, BW=1009KiB/s (1033kB/s)(6144KiB/6088msec) clat (usec): min=414, max=340259, avg=118727.16, stdev=141066.52 lat (usec): min=415, max=340261, avg=118728.37, stdev=141066.58 clat percentiles (usec): | 1.00th=[ 416], 5.00th=[ 416], 10.00th=[ 416], 20.00th=[ 553], | 30.00th=[ 553], 40.00th=[ 1549], 50.00th=[ 1549], 60.00th=[183501], | 70.00th=[185598], 80.00th=[185598], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 3961, max= 4055, per=100.00%, avg=4008.00, stdev=66.47, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=1009KiB/s (1033kB/s)(6144KiB/6088msec); 0 zone resets clat (msec): min=162, max=3777, avg=883.60, stdev=1422.56 lat (msec): min=162, max=3777, avg=883.68, stdev=1422.57 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 414], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 1848, max= 3961, per=63.39%, avg=2456.25, stdev=1006.40, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=33.33%, >=2000=8.33% cpu : usr=0.00%, sys=4.44%, ctx=111, 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=146942: Mon Mar 2 11:53:46 2026 read: IOPS=0, BW=750KiB/s (768kB/s)(5120KiB/6823msec) clat (usec): min=873, max=410694, avg=262712.75, stdev=166794.61 lat (usec): min=874, max=410695, avg=262714.30, stdev=166794.64 clat percentiles (usec): | 1.00th=[ 873], 5.00th=[ 873], 10.00th=[ 873], 20.00th=[ 873], | 30.00th=[227541], 40.00th=[227541], 50.00th=[270533], 60.00th=[270533], | 70.00th=[400557], 80.00th=[400557], 90.00th=[408945], 95.00th=[408945], | 99.00th=[408945], 99.50th=[408945], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 3968, max= 4055, per=100.00%, avg=4011.50, stdev=61.52, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1051KiB/s (1076kB/s)(7168KiB/6823msec); 0 zone resets clat (msec): min=174, max=3658, avg=780.17, stdev=1278.17 lat (msec): min=174, max=3658, avg=780.27, stdev=1278.19 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 192], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 259], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 609], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 1512, max= 4031, per=69.94%, avg=2710.20, stdev=1208.63, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 1000=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.54%, ctx=150, 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=2768KiB/s (2834kB/s), 277KiB/s-1171KiB/s (283kB/s-1199kB/s), io=20.0MiB (20.0MB), run=6088-7399msec WRITE: bw=3875KiB/s (3968kB/s), 836KiB/s-1384KiB/s (857kB/s-1417kB/s), io=28.0MiB (29.4MB), run=6088-7399msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146944: Mon Mar 2 11:53:48 2026 read: IOPS=0, BW=882KiB/s (903kB/s)(7168KiB/8130msec) clat (msec): min=163, max=2969, avg=932.74, stdev=1040.21 lat (msec): min=163, max=2969, avg=932.74, stdev=1040.21 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 176], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1502], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 1980, max= 4007, per=99.49%, avg=2506.25, stdev=1000.72, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=630KiB/s (645kB/s)(5120KiB/8130msec); 0 zone resets clat (msec): min=157, max=367, avg=293.57, stdev=87.19 lat (msec): min=157, max=367, avg=293.66, stdev=87.18 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 1996, max= 3976, per=75.77%, avg=2671.67, stdev=1129.83, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=25.00%, 500=50.00%, 2000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=1.54%, ctx=60, 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=146945: Mon Mar 2 11:53:48 2026 read: IOPS=0, BW=268KiB/s (274kB/s)(2048KiB/7640msec) clat (msec): min=150, max=168, avg=159.26, stdev=13.06 lat (msec): min=150, max=168, avg=159.26, stdev=13.06 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 169], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 169], 95.00th=[ 169], | 99.00th=[ 169], 99.50th=[ 169], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 1434, max= 2031, per=68.78%, avg=1732.50, stdev=422.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1340KiB/s (1372kB/s)(10.0MiB/7640msec); 0 zone resets clat (msec): min=174, max=3971, avg=712.72, stdev=1151.13 lat (msec): min=175, max=3971, avg=713.05, stdev=1151.01 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 226], | 30.00th=[ 236], 40.00th=[ 330], 50.00th=[ 338], 60.00th=[ 372], | 70.00th=[ 464], 80.00th=[ 472], 90.00th=[ 542], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 2003, max= 3992, per=75.80%, avg=2672.83, stdev=1009.97, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.02%, ctx=77, 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=146946: Mon Mar 2 11:53:48 2026 read: IOPS=0, BW=935KiB/s (958kB/s)(6144KiB/6569msec) clat (msec): min=76, max=315, avg=175.90, stdev=91.54 lat (msec): min=76, max=315, avg=175.90, stdev=91.54 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 89], | 30.00th=[ 89], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 2043, max= 4063, per=100.00%, avg=3373.67, stdev=1152.64, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=935KiB/s (958kB/s)(6144KiB/6569msec); 0 zone resets clat (msec): min=177, max=3988, avg=893.30, stdev=1518.29 lat (msec): min=177, max=3989, avg=893.44, stdev=1518.27 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 296], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 3977], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 1980, max= 2942, per=63.78%, avg=2249.00, stdev=462.81, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, >=2000=8.33% cpu : usr=0.02%, sys=2.09%, 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=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=146947: Mon Mar 2 11:53:48 2026 read: IOPS=0, BW=660KiB/s (676kB/s)(5120KiB/7761msec) clat (msec): min=54, max=748, avg=369.51, stdev=258.67 lat (msec): min=54, max=748, avg=369.51, stdev=258.67 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1996, max= 4087, per=100.00%, avg=2695.33, stdev=1205.22, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=924KiB/s (946kB/s)(7168KiB/7761msec); 0 zone resets clat (msec): min=229, max=3881, avg=815.25, stdev=1352.96 lat (msec): min=229, max=3881, avg=815.75, stdev=1352.90 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 271], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 321], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 3876], 95.00th=[ 3876], | 99.00th=[ 3876], 99.50th=[ 3876], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 1359, max= 3961, per=66.10%, avg=2330.75, stdev=1128.26, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=8.33%, 500=66.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=1.68%, ctx=109, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2519KiB/s (2580kB/s), 268KiB/s-935KiB/s (274kB/s-958kB/s), io=20.0MiB (20.0MB), run=6569-8130msec WRITE: bw=3527KiB/s (3611kB/s), 630KiB/s-1340KiB/s (645kB/s-1372kB/s), io=28.0MiB (29.4MB), run=6569-8130msec 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=146959: Mon Mar 2 11:54:03 2026 read: IOPS=1, BW=4686KiB/s (4799kB/s)(12.0MiB/2622msec) clat (msec): min=759, max=965, avg=870.03, stdev=103.52 lat (msec): min=759, max=965, avg=870.03, stdev=103.52 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7984, max= 8110, per=100.00%, avg=8047.00, stdev=89.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=13.93%, ctx=255, 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=146960: Mon Mar 2 11:54:03 2026 read: IOPS=0, BW=1689KiB/s (1730kB/s)(4096KiB/2425msec) clat (nsec): min=666545k, max=666545k, avg=666545028.00, stdev= 0.00 lat (nsec): min=666546k, max=666546k, avg=666546133.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3378KiB/s (3459kB/s)(8192KiB/2425msec); 0 zone resets clat (msec): min=474, max=1279, avg=876.72, stdev=569.17 lat (msec): min=477, max=1279, avg=878.46, stdev=567.33 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 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= 7846, max= 7846, per=78.49%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.21%, sys=5.40%, ctx=91, 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=146961: Mon Mar 2 11:54:03 2026 write: IOPS=0, BW=3749KiB/s (3839kB/s)(12.0MiB/3278msec); 0 zone resets clat (msec): min=402, max=1498, avg=1087.11, stdev=597.04 lat (msec): min=404, max=1505, avg=1090.98, stdev=598.94 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7846, max= 8175, per=80.14%, avg=8010.50, stdev=232.64, 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=0.06%, sys=3.88%, ctx=48, 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=146962: Mon Mar 2 11:54:03 2026 write: IOPS=1, BW=4748KiB/s (4862kB/s)(12.0MiB/2588msec); 0 zone resets clat (msec): min=395, max=1554, avg=861.49, stdev=611.82 lat (msec): min=396, max=1554, avg=862.11, stdev=611.71 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 6095, max= 8110, per=71.05%, avg=7102.50, stdev=1424.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.91%, ctx=70, 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=6249KiB/s (6399kB/s), 1689KiB/s-4686KiB/s (1730kB/s-4799kB/s), io=16.0MiB (16.8MB), run=2425-2622msec WRITE: bw=9996KiB/s (10.2MB/s), 3378KiB/s-4748KiB/s (3459kB/s-4862kB/s), io=32.0MiB (33.6MB), run=2425-3278msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146954: Mon Mar 2 11:54:03 2026 read: IOPS=2, BW=10.7MiB/s (11.2MB/s)(12.0MiB/1123msec) clat (msec): min=238, max=479, avg=344.30, stdev=123.32 lat (msec): min=238, max=479, avg=344.30, stdev=123.32 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 5704, max= 5704, per=100.00%, avg=5704.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=8.46%, ctx=55, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=146955: Mon Mar 2 11:54:03 2026 read: IOPS=0, BW=1142KiB/s (1170kB/s)(4096KiB/3586msec) clat (nsec): min=1300.1M, max=1300.1M, avg=1300141545.00, stdev= 0.00 lat (nsec): min=1300.1M, max=1300.1M, avg=1300144135.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1301], 5.00th=[ 1301], 10.00th=[ 1301], 20.00th=[ 1301], | 30.00th=[ 1301], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2284KiB/s (2339kB/s)(8192KiB/3586msec); 0 zone resets clat (msec): min=669, max=1611, avg=1140.30, stdev=666.16 lat (msec): min=670, max=1611, avg=1141.28, stdev=665.62 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 1620], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8143, max= 8143, per=89.12%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.07%, ctx=45, 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=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=146956: Mon Mar 2 11:54:03 2026 write: IOPS=1, BW=5240KiB/s (5366kB/s)(12.0MiB/2345msec); 0 zone resets clat (msec): min=658, max=951, avg=776.20, stdev=154.83 lat (msec): min=664, max=953, avg=778.90, stdev=153.52 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 953], 80.00th=[ 953], 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= 8143, max= 8143, per=89.12%, avg=8143.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=4.18%, ctx=34, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146957: Mon Mar 2 11:54:03 2026 write: IOPS=1, BW=5555KiB/s (5688kB/s)(12.0MiB/2212msec); 0 zone resets clat (msec): min=454, max=1181, avg=736.51, stdev=390.30 lat (msec): min=454, max=1182, avg=736.89, stdev=390.37 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 6692, max= 8143, per=81.18%, avg=7417.50, stdev=1026.01, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.75%, ctx=32, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4569KiB/s (4679kB/s), 1142KiB/s-10.7MiB/s (1170kB/s-11.2MB/s), io=16.0MiB (16.8MB), run=1123-3586msec WRITE: bw=9138KiB/s (9357kB/s), 2284KiB/s-5555KiB/s (2339kB/s-5688kB/s), io=32.0MiB (33.6MB), run=2212-3586msec