== sanity test 398b: DIO and buffer IO race ============== 17:21:18 (1775769678) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.56358 s, 7.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=181277: Thu Apr 9 17:23:52 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5992KiB/131568msec) clat (usec): min=45, max=844886, avg=49263.80, stdev=39723.67 lat (usec): min=46, max=844888, avg=49266.19, stdev=39724.88 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12387], 10.00th=[ 18220], 20.00th=[ 24249], | 30.00th=[ 29754], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 48497], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[175113], 99.50th=[187696], 99.90th=[371196], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 5, max= 119, per=25.43%, avg=45.26, stdev=21.01, samples=258 iops : min= 1, max= 29, avg=10.66, stdev= 5.26, samples=258 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(6296KiB/131568msec); 0 zone resets clat (usec): min=889, max=264788, avg=36455.46, stdev=38742.61 lat (usec): min=889, max=264790, avg=36472.70, stdev=38762.74 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1303], 10.00th=[ 1565], 20.00th=[ 3949], | 30.00th=[ 8291], 40.00th=[ 16450], 50.00th=[ 24249], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[173016], 99.50th=[198181], 99.90th=[225444], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 127, per=25.86%, avg=48.11, stdev=21.37, samples=255 iops : min= 1, max= 31, avg=11.38, stdev= 5.38, samples=255 lat (usec) : 50=0.16%, 100=1.27%, 250=0.03%, 1000=0.13% lat (msec) : 2=6.32%, 4=3.87%, 10=6.58%, 20=10.32%, 50=39.49% lat (msec) : 100=24.71%, 250=6.97%, 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=4.36%, ctx=6249, 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=181279: Thu Apr 9 17:23:52 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5940KiB/130503msec) clat (usec): min=41, max=455060, avg=49084.42, stdev=34632.67 lat (usec): min=42, max=455061, avg=49085.87, stdev=34632.62 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 13304], 10.00th=[ 17957], 20.00th=[ 24249], | 30.00th=[ 29492], 40.00th=[ 35914], 50.00th=[ 41681], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[106431], | 99.00th=[170918], 99.50th=[196084], 99.90th=[295699], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 5, max= 111, per=25.51%, avg=45.42, stdev=17.46, samples=253 iops : min= 1, max= 27, avg=10.70, stdev= 4.37, samples=253 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6348KiB/130503msec); 0 zone resets clat (usec): min=832, max=816427, avg=36065.55, stdev=43482.89 lat (usec): min=832, max=816428, avg=36069.35, stdev=43482.79 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1303], 10.00th=[ 1483], 20.00th=[ 3654], | 30.00th=[ 7308], 40.00th=[ 15008], 50.00th=[ 23987], 60.00th=[ 33424], | 70.00th=[ 45351], 80.00th=[ 60556], 90.00th=[ 87557], 95.00th=[111674], | 99.00th=[179307], 99.50th=[217056], 99.90th=[367002], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 119, per=26.21%, avg=48.75, stdev=23.07, samples=252 iops : min= 1, max= 29, avg=11.53, stdev= 5.80, samples=252 lat (usec) : 50=0.13%, 100=1.27%, 250=0.07%, 500=0.03%, 1000=0.26% lat (msec) : 2=6.41%, 4=4.33%, 10=6.58%, 20=10.45%, 50=38.28% lat (msec) : 100=25.16%, 250=6.77%, 500=0.23%, 1000=0.03% cpu : usr=0.07%, sys=4.43%, ctx=6219, 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=181281: Thu Apr 9 17:23:53 2026 read: IOPS=11, BW=44.7KiB/s (45.8kB/s)(6028KiB/134779msec) clat (usec): min=36, max=372529, avg=49613.10, stdev=36824.99 lat (usec): min=37, max=372530, avg=49616.93, stdev=36823.10 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10814], 10.00th=[ 17171], 20.00th=[ 24511], | 30.00th=[ 30278], 40.00th=[ 35390], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[115868], | 99.00th=[183501], 99.50th=[214959], 99.90th=[341836], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 104, per=25.23%, avg=44.92, stdev=19.60, samples=261 iops : min= 1, max= 26, avg=10.57, stdev= 4.92, samples=261 write: IOPS=11, BW=46.4KiB/s (47.6kB/s)(6260KiB/134779msec); 0 zone resets clat (usec): min=1012, max=972430, avg=38065.05, stdev=45329.64 lat (usec): min=1013, max=972432, avg=38068.25, stdev=45328.87 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1287], 10.00th=[ 1467], 20.00th=[ 3818], | 30.00th=[ 9110], 40.00th=[ 19006], 50.00th=[ 28443], 60.00th=[ 36439], | 70.00th=[ 46400], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[115868], | 99.00th=[177210], 99.50th=[198181], 99.90th=[287310], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 5, max= 119, per=25.07%, avg=46.62, stdev=21.57, samples=261 iops : min= 1, max= 29, avg=11.01, stdev= 5.42, samples=261 lat (usec) : 50=0.33%, 100=1.73%, 250=0.07%, 500=0.03%, 1000=0.03% lat (msec) : 2=6.58%, 4=3.78%, 10=5.76%, 20=8.95%, 50=39.55% lat (msec) : 100=25.68%, 250=7.16%, 500=0.33%, 1000=0.03% cpu : usr=0.07%, sys=4.46%, ctx=6256, 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=181282: Thu Apr 9 17:23:53 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6052KiB/132616msec) clat (usec): min=38, max=330615, avg=48697.01, stdev=33368.92 lat (usec): min=38, max=330616, avg=48699.23, stdev=33372.24 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 12125], 10.00th=[ 17695], 20.00th=[ 24249], | 30.00th=[ 30016], 40.00th=[ 35914], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[109577], | 99.00th=[175113], 99.50th=[202376], 99.90th=[295699], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 7, max= 119, per=25.85%, avg=46.02, stdev=19.09, samples=256 iops : min= 1, max= 29, avg=10.84, stdev= 4.79, samples=256 write: IOPS=11, BW=47.0KiB/s (48.2kB/s)(6236KiB/132616msec); 0 zone resets clat (usec): min=865, max=961458, avg=37561.65, stdev=47938.73 lat (usec): min=866, max=961460, avg=37563.46, stdev=47938.76 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1319], 10.00th=[ 1500], 20.00th=[ 4080], | 30.00th=[ 7963], 40.00th=[ 17171], 50.00th=[ 24249], 60.00th=[ 33817], | 70.00th=[ 45351], 80.00th=[ 61080], 90.00th=[ 87557], 95.00th=[117965], | 99.00th=[196084], 99.50th=[235930], 99.90th=[413139], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 142, per=25.30%, avg=47.05, stdev=22.55, samples=258 iops : min= 1, max= 35, avg=11.12, stdev= 5.67, samples=258 lat (usec) : 50=0.36%, 100=1.46%, 250=0.07%, 750=0.03%, 1000=0.26% lat (msec) : 2=6.58%, 4=3.22%, 10=7.00%, 20=9.54%, 50=38.61% lat (msec) : 100=25.72%, 250=6.93%, 500=0.20%, 1000=0.03% cpu : usr=0.06%, sys=4.49%, ctx=6228, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=178KiB/s (182kB/s), 44.7KiB/s-45.6KiB/s (45.8kB/s-46.7kB/s), io=23.4MiB (24.6MB), run=130503-134779msec WRITE: bw=187KiB/s (191kB/s), 46.4KiB/s-48.6KiB/s (47.6kB/s-49.8kB/s), io=24.6MiB (25.7MB), run=130503-134779msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181275: Thu Apr 9 17:24:37 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(5992KiB/178827msec) clat (msec): min=6, max=833, avg=45.85, stdev=47.29 lat (msec): min=6, max=833, avg=45.85, stdev=47.29 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 99], 95.00th=[ 129], | 99.00th=[ 209], 99.50th=[ 292], 99.90th=[ 439], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 118, per=25.84%, avg=34.37, stdev=21.92, samples=337 iops : min= 1, max= 29, avg= 7.91, stdev= 5.53, samples=337 write: IOPS=8, BW=35.2KiB/s (36.1kB/s)(6296KiB/178827msec); 0 zone resets clat (msec): min=12, max=473, avg=69.76, stdev=49.02 lat (msec): min=12, max=473, avg=69.76, stdev=49.03 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 80], 80.00th=[ 100], 90.00th=[ 130], 95.00th=[ 167], | 99.00th=[ 266], 99.50th=[ 296], 99.90th=[ 401], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 103, per=25.69%, avg=35.70, stdev=19.70, samples=341 iops : min= 1, max= 25, avg= 8.24, stdev= 4.96, samples=341 lat (msec) : 10=0.85%, 20=11.75%, 50=46.29%, 100=26.33%, 250=13.87% lat (msec) : 500=0.88%, 1000=0.03% cpu : usr=0.05%, sys=1.85%, ctx=4749, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181276: Thu Apr 9 17:24:37 2026 read: IOPS=8, BW=33.1KiB/s (33.9kB/s)(5940KiB/179556msec) clat (msec): min=6, max=894, avg=48.17, stdev=49.29 lat (msec): min=6, max=894, avg=48.17, stdev=49.29 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 66], 90.00th=[ 109], 95.00th=[ 148], | 99.00th=[ 226], 99.50th=[ 241], 99.90th=[ 305], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 126, per=25.16%, avg=33.47, stdev=21.86, samples=344 iops : min= 1, max= 31, avg= 7.69, stdev= 5.50, samples=344 write: IOPS=8, BW=35.4KiB/s (36.2kB/s)(6348KiB/179556msec); 0 zone resets clat (msec): min=12, max=705, avg=67.81, stdev=48.92 lat (msec): min=12, max=705, avg=67.82, stdev=48.92 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 97], 90.00th=[ 128], 95.00th=[ 159], | 99.00th=[ 228], 99.50th=[ 271], 99.90th=[ 460], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 127, per=25.32%, avg=35.20, stdev=20.87, samples=350 iops : min= 1, max= 31, avg= 8.11, stdev= 5.25, samples=350 lat (msec) : 10=0.98%, 20=11.95%, 50=46.45%, 100=25.16%, 250=14.88% lat (msec) : 500=0.52%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.74%, ctx=4686, 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=181278: Thu Apr 9 17:24:37 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(6028KiB/179703msec) clat (msec): min=3, max=340, avg=46.85, stdev=42.88 lat (msec): min=3, max=340, avg=46.85, stdev=42.88 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 68], 90.00th=[ 101], 95.00th=[ 136], | 99.00th=[ 218], 99.50th=[ 239], 99.90th=[ 313], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 120, per=25.69%, avg=34.16, stdev=22.28, samples=341 iops : min= 1, max= 30, avg= 7.86, stdev= 5.63, samples=341 write: IOPS=8, BW=34.8KiB/s (35.7kB/s)(6260KiB/179703msec); 0 zone resets clat (msec): min=10, max=945, avg=69.50, stdev=55.50 lat (msec): min=10, max=945, avg=69.50, stdev=55.51 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 96], 90.00th=[ 129], 95.00th=[ 165], | 99.00th=[ 266], 99.50th=[ 313], 99.90th=[ 558], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 103, per=24.97%, avg=34.71, stdev=20.74, samples=348 iops : min= 1, max= 25, avg= 7.99, stdev= 5.21, samples=348 lat (msec) : 4=0.03%, 10=1.56%, 20=11.46%, 50=45.35%, 100=27.34% lat (msec) : 250=13.38%, 500=0.81%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.85%, ctx=4699, 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=181280: Thu Apr 9 17:24:37 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(6052KiB/179621msec) clat (msec): min=5, max=366, avg=47.26, stdev=44.37 lat (msec): min=5, max=366, avg=47.26, stdev=44.37 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 69], 90.00th=[ 101], 95.00th=[ 136], | 99.00th=[ 243], 99.50th=[ 262], 99.90th=[ 330], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 119, per=25.99%, avg=34.56, stdev=22.20, samples=339 iops : min= 1, max= 29, avg= 7.96, stdev= 5.60, samples=339 write: IOPS=8, BW=34.7KiB/s (35.6kB/s)(6236KiB/179621msec); 0 zone resets clat (msec): min=7, max=948, avg=69.13, stdev=54.01 lat (msec): min=7, max=948, avg=69.14, stdev=54.01 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 63], | 70.00th=[ 79], 80.00th=[ 95], 90.00th=[ 131], 95.00th=[ 165], | 99.00th=[ 266], 99.50th=[ 300], 99.90th=[ 584], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 103, per=25.01%, avg=34.77, stdev=20.43, samples=347 iops : min= 1, max= 25, avg= 8.01, stdev= 5.13, samples=347 lat (msec) : 10=1.37%, 20=11.46%, 50=45.21%, 100=28.16%, 250=12.86% lat (msec) : 500=0.88%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.72%, ctx=4595, 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=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=134KiB/s (137kB/s), 33.1KiB/s-33.7KiB/s (33.9kB/s-34.5kB/s), io=23.4MiB (24.6MB), run=178827-179703msec WRITE: bw=140KiB/s (143kB/s), 34.7KiB/s-35.4KiB/s (35.6kB/s-36.2kB/s), io=24.6MiB (25.7MB), run=178827-179703msec 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=181334: Thu Apr 9 17:25:23 2026 read: IOPS=11, BW=184KiB/s (189kB/s)(5920KiB/32142msec) clat (usec): min=44, max=228102, avg=47560.21, stdev=33859.98 lat (usec): min=45, max=228103, avg=47570.03, stdev=33857.05 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 64], 10.00th=[ 10945], 20.00th=[ 23462], | 30.00th=[ 30016], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[179307], 99.50th=[208667], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 63, max= 384, per=25.21%, avg=184.78, stdev=80.65, samples=63 iops : min= 3, max= 24, avg=10.75, stdev= 5.12, samples=63 write: IOPS=12, BW=198KiB/s (203kB/s)(6368KiB/32142msec); 0 zone resets clat (usec): min=1192, max=180059, avg=35693.72, stdev=35299.05 lat (usec): min=1193, max=180061, avg=35695.68, stdev=35299.05 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1876], 10.00th=[ 2311], 20.00th=[ 4752], | 30.00th=[ 9634], 40.00th=[ 17171], 50.00th=[ 25560], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 58459], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[149947], 99.50th=[175113], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 63, max= 443, per=25.74%, avg=198.44, stdev=77.10, samples=63 iops : min= 3, max= 27, avg=11.62, stdev= 4.86, samples=63 lat (usec) : 50=0.13%, 100=4.04%, 500=0.13% lat (msec) : 2=4.04%, 4=4.43%, 10=8.07%, 20=9.24%, 50=38.02% lat (msec) : 100=25.26%, 250=6.64% cpu : usr=0.08%, sys=5.04%, ctx=1676, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181335: Thu Apr 9 17:25:23 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(5744KiB/32653msec) clat (usec): min=38, max=211005, avg=47836.96, stdev=30436.67 lat (usec): min=38, max=211006, avg=47838.14, stdev=30436.66 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 69], 10.00th=[ 17171], 20.00th=[ 24249], | 30.00th=[ 30540], 40.00th=[ 38011], 50.00th=[ 42730], 60.00th=[ 49021], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[143655], 99.50th=[149947], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 21, max= 383, per=24.53%, avg=179.81, stdev=74.14, samples=63 iops : min= 1, max= 23, avg=10.44, stdev= 4.67, samples=63 write: IOPS=12, BW=200KiB/s (205kB/s)(6544KiB/32653msec); 0 zone resets clat (usec): min=1429, max=185875, avg=36822.64, stdev=35519.54 lat (usec): min=1431, max=185878, avg=36825.14, stdev=35519.43 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2024], 10.00th=[ 3032], 20.00th=[ 5735], | 30.00th=[ 9765], 40.00th=[ 17957], 50.00th=[ 27132], 60.00th=[ 36439], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 91751], 95.00th=[106431], | 99.00th=[147850], 99.50th=[154141], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 444, per=26.03%, avg=200.70, stdev=81.40, samples=64 iops : min= 1, max= 27, avg=11.77, stdev= 5.16, samples=64 lat (usec) : 50=0.39%, 100=2.60%, 250=0.26%, 750=0.13% lat (msec) : 2=2.60%, 4=4.82%, 10=8.85%, 20=8.46%, 50=39.19% lat (msec) : 100=25.52%, 250=7.16% cpu : usr=0.04%, sys=5.31%, ctx=1665, 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=181336: Thu Apr 9 17:25:23 2026 read: IOPS=12, BW=192KiB/s (197kB/s)(6256KiB/32533msec) clat (usec): min=43, max=198837, avg=46889.13, stdev=31008.18 lat (usec): min=45, max=198838, avg=46891.16, stdev=31007.61 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 15401], 20.00th=[ 23987], | 30.00th=[ 31065], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 57934], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[185598], 99.50th=[193987], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 349, per=26.44%, avg=193.84, stdev=79.81, samples=63 iops : min= 1, max= 21, avg=11.32, stdev= 5.02, samples=63 write: IOPS=11, BW=185KiB/s (190kB/s)(6032KiB/32533msec); 0 zone resets clat (usec): min=1097, max=267595, avg=37381.70, stdev=38191.40 lat (usec): min=1097, max=267597, avg=37397.26, stdev=38207.28 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1893], 10.00th=[ 2606], 20.00th=[ 5407], | 30.00th=[ 8586], 40.00th=[ 15926], 50.00th=[ 24773], 60.00th=[ 38536], | 70.00th=[ 48497], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[177210], 99.50th=[210764], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 31, max= 472, per=23.78%, avg=183.38, stdev=81.86, samples=63 iops : min= 1, max= 29, avg=10.68, stdev= 5.20, samples=63 lat (usec) : 50=0.26%, 100=3.52%, 250=0.39%, 1000=0.13% lat (msec) : 2=3.52%, 4=4.17%, 10=7.94%, 20=10.03%, 50=35.29% lat (msec) : 100=28.65%, 250=5.99%, 500=0.13% cpu : usr=0.04%, sys=4.73%, ctx=1575, 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=181337: Thu Apr 9 17:25:23 2026 read: IOPS=12, BW=193KiB/s (198kB/s)(6032KiB/31190msec) clat (usec): min=28, max=219006, avg=47856.14, stdev=35362.14 lat (usec): min=29, max=219007, avg=47861.34, stdev=35368.02 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 70], 20.00th=[ 20841], | 30.00th=[ 28967], 40.00th=[ 36963], 50.00th=[ 44303], 60.00th=[ 51643], | 70.00th=[ 58459], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[112722], | 99.00th=[179307], 99.50th=[198181], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 383, per=26.28%, avg=192.64, stdev=77.75, samples=61 iops : min= 1, max= 23, avg=11.25, stdev= 4.92, samples=61 write: IOPS=12, BW=201KiB/s (205kB/s)(6256KiB/31190msec); 0 zone resets clat (usec): min=1377, max=172262, avg=33140.48, stdev=33012.32 lat (usec): min=1379, max=172265, avg=33143.42, stdev=33012.94 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1860], 10.00th=[ 2212], 20.00th=[ 4490], | 30.00th=[ 7898], 40.00th=[ 13435], 50.00th=[ 23462], 60.00th=[ 32900], | 70.00th=[ 44303], 80.00th=[ 57410], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[145753], 99.50th=[168821], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 574, per=26.03%, avg=200.67, stdev=97.49, samples=61 iops : min= 1, max= 35, avg=11.75, stdev= 6.13, samples=61 lat (usec) : 50=0.65%, 100=5.21%, 250=0.13%, 750=0.13% lat (msec) : 2=4.56%, 4=5.21%, 10=8.59%, 20=8.98%, 50=32.55% lat (msec) : 100=27.99%, 250=5.99% cpu : usr=0.07%, sys=5.34%, ctx=1599, 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=734KiB/s (751kB/s), 176KiB/s-193KiB/s (180kB/s-198kB/s), io=23.4MiB (24.5MB), run=31190-32653msec WRITE: bw=772KiB/s (790kB/s), 185KiB/s-201KiB/s (190kB/s-205kB/s), io=24.6MiB (25.8MB), run=31190-32653msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181330: Thu Apr 9 17:25:37 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5920KiB/45895msec) clat (msec): min=10, max=262, avg=50.11, stdev=38.46 lat (msec): min=10, max=262, avg=50.12, stdev=38.46 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 39], 60.00th=[ 46], | 70.00th=[ 55], 80.00th=[ 66], 90.00th=[ 102], 95.00th=[ 127], | 99.00th=[ 207], 99.50th=[ 226], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 31, max= 352, per=26.19%, avg=133.81, stdev=68.44, samples=86 iops : min= 1, max= 22, avg= 7.59, stdev= 4.33, samples=86 write: IOPS=8, BW=139KiB/s (142kB/s)(6368KiB/45895msec); 0 zone resets clat (msec): min=12, max=344, avg=67.87, stdev=45.87 lat (msec): min=12, max=344, avg=67.87, stdev=45.87 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 66], | 70.00th=[ 77], 80.00th=[ 92], 90.00th=[ 132], 95.00th=[ 153], | 99.00th=[ 262], 99.50th=[ 279], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 347, per=26.29%, avg=141.17, stdev=73.97, samples=88 iops : min= 1, max= 21, avg= 8.07, stdev= 4.68, samples=88 lat (msec) : 20=7.94%, 50=46.88%, 100=31.12%, 250=13.41%, 500=0.65% cpu : usr=0.03%, sys=1.98%, ctx=1228, 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=181331: Thu Apr 9 17:25:37 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(5744KiB/46860msec) clat (msec): min=8, max=224, avg=50.45, stdev=40.81 lat (msec): min=8, max=224, avg=50.45, stdev=40.81 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 56], 80.00th=[ 72], 90.00th=[ 110], 95.00th=[ 144], | 99.00th=[ 201], 99.50th=[ 218], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 30, max= 382, per=24.21%, avg=123.69, stdev=76.56, samples=90 iops : min= 1, max= 23, avg= 6.93, stdev= 4.87, samples=90 write: IOPS=8, BW=140KiB/s (143kB/s)(6544KiB/46860msec); 0 zone resets clat (msec): min=14, max=296, avg=69.55, stdev=47.37 lat (msec): min=14, max=296, avg=69.55, stdev=47.37 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 78], 80.00th=[ 105], 90.00th=[ 142], 95.00th=[ 178], | 99.00th=[ 215], 99.50th=[ 232], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 383, per=25.73%, avg=138.16, stdev=77.97, samples=92 iops : min= 1, max= 23, avg= 7.86, stdev= 4.94, samples=92 lat (msec) : 10=0.26%, 20=7.68%, 50=47.27%, 100=28.91%, 250=15.63% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.80%, ctx=1181, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181332: Thu Apr 9 17:25:37 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46754msec) clat (msec): min=7, max=264, avg=49.25, stdev=37.16 lat (msec): min=7, max=264, avg=49.25, stdev=37.16 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 54], 80.00th=[ 72], 90.00th=[ 104], 95.00th=[ 125], | 99.00th=[ 182], 99.50th=[ 194], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 382, per=26.74%, avg=136.64, stdev=82.48, samples=90 iops : min= 1, max= 23, avg= 7.77, stdev= 5.20, samples=90 write: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46754msec); 0 zone resets clat (msec): min=15, max=346, avg=72.79, stdev=50.21 lat (msec): min=15, max=346, avg=72.80, stdev=50.23 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 67], | 70.00th=[ 84], 80.00th=[ 104], 90.00th=[ 148], 95.00th=[ 163], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 316, per=23.68%, avg=127.14, stdev=70.00, samples=92 iops : min= 1, max= 19, avg= 7.16, stdev= 4.43, samples=92 lat (msec) : 10=0.52%, 20=8.07%, 50=47.79%, 100=27.34%, 250=15.49% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.85%, ctx=1248, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181333: Thu Apr 9 17:25:37 2026 read: IOPS=8, BW=129KiB/s (133kB/s)(6032KiB/46594msec) clat (msec): min=8, max=241, avg=50.76, stdev=39.32 lat (msec): min=8, max=241, avg=50.77, stdev=39.32 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 38], 60.00th=[ 46], | 70.00th=[ 54], 80.00th=[ 72], 90.00th=[ 104], 95.00th=[ 132], | 99.00th=[ 205], 99.50th=[ 241], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 30, max= 377, per=25.72%, avg=131.41, stdev=75.92, samples=90 iops : min= 1, max= 23, avg= 7.43, stdev= 4.82, samples=90 write: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46594msec); 0 zone resets clat (msec): min=13, max=249, avg=69.71, stdev=46.54 lat (msec): min=13, max=249, avg=69.71, stdev=46.54 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 80], 80.00th=[ 97], 90.00th=[ 130], 95.00th=[ 176], | 99.00th=[ 232], 99.50th=[ 241], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 30, max= 352, per=24.96%, avg=134.02, stdev=74.87, samples=92 iops : min= 1, max= 22, avg= 7.60, stdev= 4.73, samples=92 lat (msec) : 10=0.39%, 20=6.90%, 50=47.53%, 100=30.73%, 250=14.45% cpu : usr=0.06%, sys=1.84%, ctx=1233, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=511KiB/s (523kB/s), 123KiB/s-134KiB/s (126kB/s-137kB/s), io=23.4MiB (24.5MB), run=45895-46860msec WRITE: bw=538KiB/s (551kB/s), 129KiB/s-140KiB/s (132kB/s-143kB/s), io=24.6MiB (25.8MB), run=45895-46860msec 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=181351: Thu Apr 9 17:25:53 2026 read: IOPS=2, BW=2149KiB/s (2201kB/s)(7168KiB/3335msec) clat (usec): min=484, max=586267, avg=195930.47, stdev=218186.79 lat (usec): min=486, max=586270, avg=195931.94, stdev=218187.15 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], 20.00th=[ 594], | 30.00th=[ 22152], 40.00th=[ 22152], 50.00th=[189793], 60.00th=[214959], | 70.00th=[214959], 80.00th=[358613], 90.00th=[583009], 95.00th=[583009], | 99.00th=[583009], 99.50th=[583009], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 2000, max= 4071, per=74.13%, avg=3028.25, stdev=1185.66, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1535KiB/s (1572kB/s)(5120KiB/3335msec); 0 zone resets clat (msec): min=126, max=504, avg=311.87, stdev=177.11 lat (msec): min=126, max=504, avg=311.95, stdev=177.10 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1992, max= 4039, per=46.81%, avg=2677.00, stdev=1179.53, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 50=8.33%, 250=33.33%, 500=25.00%, 750=16.67% cpu : usr=0.03%, sys=10.44%, 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=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=181352: Thu Apr 9 17:25:53 2026 read: IOPS=0, BW=409KiB/s (418kB/s)(2048KiB/5013msec) clat (usec): min=517, max=183753, avg=92135.61, stdev=129567.91 lat (usec): min=518, max=183757, avg=92137.76, stdev=129569.43 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 519], | 30.00th=[ 519], 40.00th=[ 519], 50.00th=[ 519], 60.00th=[183501], | 70.00th=[183501], 80.00th=[183501], 90.00th=[183501], 95.00th=[183501], | 99.00th=[183501], 99.50th=[183501], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 1528, max= 2039, per=43.66%, avg=1783.50, stdev=361.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2043KiB/s (2092kB/s)(10.0MiB/5013msec); 0 zone resets clat (msec): min=130, max=970, avg=470.84, stdev=294.70 lat (msec): min=130, max=970, avg=470.93, stdev=294.69 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 176], | 30.00th=[ 222], 40.00th=[ 284], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 659], 80.00th=[ 701], 90.00th=[ 818], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1528, max= 6131, per=44.29%, avg=2533.14, stdev=1596.94, samples=7 iops : min= 1, max= 5, avg= 1.57, stdev= 1.51, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=10.00%, ctx=118, 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=181354: Thu Apr 9 17:25:53 2026 read: IOPS=1, BW=1541KiB/s (1578kB/s)(6144KiB/3988msec) clat (msec): min=201, max=309, avg=262.70, stdev=45.57 lat (msec): min=201, max=309, avg=262.70, stdev=45.57 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 284], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 1992, max= 4000, per=61.41%, avg=2508.50, stdev=994.54, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1541KiB/s (1578kB/s)(6144KiB/3988msec); 0 zone resets clat (msec): min=200, max=646, avg=360.90, stdev=157.24 lat (msec): min=201, max=648, avg=361.46, stdev=158.04 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 351], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1577, max= 2035, per=33.60%, avg=1921.40, stdev=193.22, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=11.49%, ctx=302, 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=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=181355: Thu Apr 9 17:25:53 2026 read: IOPS=1, BW=1537KiB/s (1574kB/s)(5120KiB/3331msec) clat (msec): min=2, max=372, avg=142.59, stdev=175.30 lat (msec): min=2, max=372, avg=142.60, stdev=175.30 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 18], 40.00th=[ 18], 50.00th=[ 30], 60.00th=[ 30], | 70.00th=[ 292], 80.00th=[ 292], 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= 2019, max= 5976, per=97.86%, avg=3997.50, stdev=2798.02, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2152KiB/s (2204kB/s)(7168KiB/3331msec); 0 zone resets clat (msec): min=202, max=603, avg=332.59, stdev=142.95 lat (msec): min=202, max=603, avg=332.91, stdev=142.80 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 228], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 443], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1662, max= 4000, per=40.89%, avg=2338.40, stdev=941.14, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 4=8.33%, 20=8.33%, 50=8.33%, 250=25.00%, 500=41.67% lat (msec) : 750=8.33% cpu : usr=0.03%, sys=12.46%, ctx=155, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4085KiB/s (4183kB/s), 409KiB/s-2149KiB/s (418kB/s-2201kB/s), io=20.0MiB (20.0MB), run=3331-5013msec WRITE: bw=5720KiB/s (5857kB/s), 1535KiB/s-2152KiB/s (1572kB/s-2204kB/s), io=28.0MiB (29.4MB), run=3331-5013msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181356: Thu Apr 9 17:25:54 2026 read: IOPS=1, BW=1601KiB/s (1640kB/s)(7168KiB/4476msec) clat (msec): min=96, max=979, avg=401.89, stdev=377.03 lat (msec): min=96, max=979, avg=401.89, stdev=377.03 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 101], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 176], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 827], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1988, max= 4071, per=89.19%, avg=3376.67, stdev=1202.62, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1144KiB/s (1171kB/s)(5120KiB/4476msec); 0 zone resets clat (msec): min=178, max=544, avg=278.71, stdev=151.09 lat (msec): min=178, max=544, avg=278.90, stdev=150.99 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 222], 60.00th=[ 222], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2027, max= 3915, per=50.17%, avg=2659.00, stdev=1087.74, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=41.67%, 500=8.33%, 750=16.67%, 1000=16.67% cpu : usr=0.04%, sys=4.27%, ctx=97, 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=181357: Thu Apr 9 17:25:54 2026 read: IOPS=0, BW=380KiB/s (389kB/s)(2048KiB/5394msec) clat (msec): min=107, max=239, avg=173.53, stdev=93.24 lat (msec): min=107, max=239, avg=173.53, stdev=93.24 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 108], | 30.00th=[ 108], 40.00th=[ 108], 50.00th=[ 108], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 2011, max= 2043, per=53.54%, avg=2027.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1898KiB/s (1944kB/s)(10.0MiB/5394msec); 0 zone resets clat (msec): min=147, max=1220, avg=496.05, stdev=346.25 lat (msec): min=147, max=1220, avg=496.16, stdev=346.23 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 178], | 30.00th=[ 186], 40.00th=[ 218], 50.00th=[ 342], 60.00th=[ 584], | 70.00th=[ 667], 80.00th=[ 676], 90.00th=[ 751], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1957, max= 4087, per=50.77%, avg=2690.83, stdev=1063.39, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=50.00%, 500=8.33%, 750=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=5.03%, ctx=141, 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=181358: Thu Apr 9 17:25:54 2026 read: IOPS=1, BW=1287KiB/s (1318kB/s)(6144KiB/4773msec) clat (msec): min=113, max=959, avg=283.50, stdev=332.61 lat (msec): min=113, max=959, avg=283.50, stdev=332.61 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 167], | 70.00th=[ 190], 80.00th=[ 190], 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= 1992, max= 2035, per=53.05%, avg=2008.50, stdev=20.73, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1287KiB/s (1318kB/s)(6144KiB/4773msec); 0 zone resets clat (msec): min=146, max=890, avg=469.13, stdev=266.96 lat (msec): min=146, max=890, avg=469.88, stdev=266.66 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 506], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1969, max= 4031, per=47.09%, avg=2496.00, stdev=1023.39, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.95%, ctx=81, 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=181359: Thu Apr 9 17:25:54 2026 read: IOPS=0, BW=947KiB/s (969kB/s)(5120KiB/5409msec) clat (msec): min=86, max=729, avg=294.43, stdev=270.45 lat (msec): min=86, max=729, avg=294.43, stdev=270.45 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 155], 60.00th=[ 155], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1992, max= 2035, per=53.13%, avg=2011.50, stdev=22.75, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1325KiB/s (1357kB/s)(7168KiB/5409msec); 0 zone resets clat (msec): min=144, max=810, avg=517.54, stdev=234.76 lat (msec): min=145, max=810, avg=517.64, stdev=234.75 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 338], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 617], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 701], 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= 1969, max= 6095, per=53.29%, avg=2824.20, stdev=1828.60, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=33.33%, 1000=8.33% cpu : usr=0.00%, sys=3.27%, 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=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=3786KiB/s (3877kB/s), 380KiB/s-1601KiB/s (389kB/s-1640kB/s), io=20.0MiB (20.0MB), run=4476-5409msec WRITE: bw=5301KiB/s (5428kB/s), 1144KiB/s-1898KiB/s (1171kB/s-1944kB/s), io=28.0MiB (29.4MB), run=4476-5409msec 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=181366: Thu Apr 9 17:26:11 2026 read: IOPS=1, BW=5267KiB/s (5393kB/s)(12.0MiB/2333msec) clat (msec): min=694, max=832, avg=769.24, stdev=69.60 lat (msec): min=694, max=832, avg=769.24, stdev=69.60 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.09%, sys=13.98%, ctx=170, 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=181367: Thu Apr 9 17:26:11 2026 read: IOPS=0, BW=1298KiB/s (1329kB/s)(4096KiB/3156msec) clat (nsec): min=937003k, max=937003k, avg=937002798.00, stdev= 0.00 lat (nsec): min=937005k, max=937005k, avg=937005395.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] 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=2596KiB/s (2658kB/s)(8192KiB/3156msec); 0 zone resets clat (msec): min=867, max=1314, avg=1091.02, stdev=316.61 lat (msec): min=867, max=1315, avg=1091.51, stdev=316.49 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8143, max= 8143, per=84.20%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.65%, ctx=56, 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=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=181368: Thu Apr 9 17:26:11 2026 write: IOPS=0, BW=3627KiB/s (3714kB/s)(12.0MiB/3388msec); 0 zone resets clat (msec): min=762, max=1553, avg=1112.74, stdev=403.20 lat (msec): min=762, max=1553, avg=1113.11, stdev=403.24 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 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= 7984, max= 8126, per=83.29%, avg=8055.00, stdev=100.41, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.64%, ctx=45, 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=181369: Thu Apr 9 17:26:11 2026 write: IOPS=0, BW=3974KiB/s (4070kB/s)(12.0MiB/3092msec); 0 zone resets clat (msec): min=380, max=1680, avg=1015.76, stdev=650.57 lat (msec): min=381, max=1680, avg=1016.10, stdev=650.43 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7984, max= 8126, per=83.29%, avg=8055.00, stdev=100.41, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.50%, ctx=53, 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=5191KiB/s (5316kB/s), 1298KiB/s-5267KiB/s (1329kB/s-5393kB/s), io=16.0MiB (16.8MB), run=2333-3156msec WRITE: bw=9672KiB/s (9904kB/s), 2596KiB/s-3974KiB/s (2658kB/s-4070kB/s), io=32.0MiB (33.6MB), run=3092-3388msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181372: Thu Apr 9 17:26:11 2026 read: IOPS=1, BW=4230KiB/s (4331kB/s)(12.0MiB/2905msec) clat (msec): min=401, max=1429, avg=967.89, stdev=521.58 lat (msec): min=401, max=1429, avg=967.89, stdev=521.58 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8031, max= 8175, per=100.00%, avg=8103.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.62%, ctx=53, 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=181373: Thu Apr 9 17:26:11 2026 read: IOPS=0, BW=1228KiB/s (1257kB/s)(4096KiB/3336msec) clat (nsec): min=884744k, max=884744k, avg=884743768.00, stdev= 0.00 lat (nsec): min=884747k, max=884747k, avg=884746661.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 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=2456KiB/s (2515kB/s)(8192KiB/3336msec); 0 zone resets clat (msec): min=1060, max=1383, avg=1221.74, stdev=228.22 lat (msec): min=1061, max=1383, avg=1222.97, stdev=227.66 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8031, max= 8031, per=82.06%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.61%, ctx=36, 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=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=181374: Thu Apr 9 17:26:11 2026 write: IOPS=0, BW=3670KiB/s (3758kB/s)(12.0MiB/3348msec); 0 zone resets clat (msec): min=271, max=1793, avg=1115.29, stdev=774.56 lat (msec): min=271, max=1793, avg=1115.62, stdev=774.53 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8094, max= 8126, per=82.87%, avg=8110.00, stdev=22.63, 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=0.15%, sys=2.60%, ctx=41, 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=181375: Thu Apr 9 17:26:11 2026 write: IOPS=1, BW=4149KiB/s (4248kB/s)(12.0MiB/2962msec); 0 zone resets clat (msec): min=312, max=1676, avg=985.80, stdev=682.35 lat (msec): min=313, max=1677, avg=986.20, stdev=682.35 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8094, max= 8094, per=82.70%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.76%, ctx=72, 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=4911KiB/s (5029kB/s), 1228KiB/s-4230KiB/s (1257kB/s-4331kB/s), io=16.0MiB (16.8MB), run=2905-3336msec WRITE: bw=9787KiB/s (10.0MB/s), 2456KiB/s-4149KiB/s (2515kB/s-4248kB/s), io=32.0MiB (33.6MB), run=2962-3348msec