== sanity test 398b: DIO and buffer IO race ============== 00:10:08 (1773202208) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.38326 s, 7.9 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=147576: Wed Mar 11 00:12:52 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(5992KiB/137061msec) clat (usec): min=126, max=550327, avg=45440.75, stdev=36723.40 lat (usec): min=127, max=550328, avg=45448.39, stdev=36729.81 clat percentiles (usec): | 1.00th=[ 210], 5.00th=[ 277], 10.00th=[ 8094], 20.00th=[ 20055], | 30.00th=[ 26084], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 46924], | 70.00th=[ 55837], 80.00th=[ 66847], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[168821], 99.50th=[193987], 99.90th=[417334], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 119, per=25.33%, avg=43.83, stdev=20.03, samples=265 iops : min= 1, max= 29, avg=10.32, stdev= 5.04, samples=265 write: IOPS=11, BW=45.9KiB/s (47.0kB/s)(6296KiB/137061msec); 0 zone resets clat (usec): min=923, max=593612, avg=43740.08, stdev=47781.07 lat (usec): min=924, max=593613, avg=43742.33, stdev=47781.43 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1303], 10.00th=[ 1434], 20.00th=[ 4621], | 30.00th=[ 10159], 40.00th=[ 21890], 50.00th=[ 32113], 60.00th=[ 42730], | 70.00th=[ 55837], 80.00th=[ 72877], 90.00th=[100140], 95.00th=[131597], | 99.00th=[202376], 99.50th=[238027], 99.90th=[425722], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 157, per=25.09%, avg=45.42, stdev=20.78, samples=269 iops : min= 1, max= 39, avg=10.72, stdev= 5.26, samples=269 lat (usec) : 250=1.50%, 500=2.08%, 750=0.36%, 1000=0.16% lat (msec) : 2=7.10%, 4=2.60%, 10=6.48%, 20=9.05%, 50=35.32% lat (msec) : 100=27.38%, 250=7.65%, 500=0.26%, 750=0.07% cpu : usr=0.06%, sys=4.82%, ctx=6356, majf=0, minf=19 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=147577: Wed Mar 11 00:12:52 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(5940KiB/137506msec) clat (usec): min=174, max=598304, avg=47279.65, stdev=37948.93 lat (usec): min=175, max=598306, avg=47281.78, stdev=37948.61 clat percentiles (usec): | 1.00th=[ 217], 5.00th=[ 277], 10.00th=[ 12911], 20.00th=[ 22152], | 30.00th=[ 28705], 40.00th=[ 34341], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 55313], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[107480], | 99.00th=[183501], 99.50th=[212861], 99.90th=[358613], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 96, per=25.08%, avg=43.39, stdev=20.27, samples=266 iops : min= 1, max= 24, avg=10.21, stdev= 5.09, samples=266 write: IOPS=11, BW=46.2KiB/s (47.3kB/s)(6348KiB/137506msec); 0 zone resets clat (usec): min=914, max=768942, avg=42314.72, stdev=49414.65 lat (usec): min=916, max=768943, avg=42322.73, stdev=49410.11 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1319], 10.00th=[ 1483], 20.00th=[ 4621], | 30.00th=[ 9634], 40.00th=[ 17433], 50.00th=[ 28967], 60.00th=[ 40633], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[100140], 95.00th=[129500], | 99.00th=[193987], 99.50th=[248513], 99.90th=[522191], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 135, per=25.46%, avg=46.09, stdev=20.87, samples=267 iops : min= 1, max= 33, avg=10.88, stdev= 5.25, samples=267 lat (usec) : 250=1.86%, 500=1.66%, 750=0.20%, 1000=0.23% lat (msec) : 2=6.28%, 4=3.39%, 10=6.77%, 20=8.92%, 50=36.13% lat (msec) : 100=26.46%, 250=7.75%, 500=0.26%, 750=0.07%, 1000=0.03% cpu : usr=0.06%, sys=4.69%, ctx=6381, majf=0, minf=20 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=147578: Wed Mar 11 00:12:52 2026 read: IOPS=11, BW=44.1KiB/s (45.2kB/s)(6028KiB/136641msec) clat (usec): min=153, max=580854, avg=45177.94, stdev=37890.15 lat (usec): min=154, max=580855, avg=45179.32, stdev=37890.46 clat percentiles (usec): | 1.00th=[ 217], 5.00th=[ 262], 10.00th=[ 10552], 20.00th=[ 21103], | 30.00th=[ 26346], 40.00th=[ 32637], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[164627], 99.50th=[202376], 99.90th=[517997], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 111, per=25.68%, avg=44.42, stdev=20.68, samples=264 iops : min= 1, max= 27, avg=10.47, stdev= 5.21, samples=264 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(6260KiB/136641msec); 0 zone resets clat (usec): min=874, max=641239, avg=43691.25, stdev=45811.34 lat (usec): min=875, max=641242, avg=43695.60, stdev=45809.09 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1303], 10.00th=[ 1434], 20.00th=[ 4490], | 30.00th=[ 10159], 40.00th=[ 21103], 50.00th=[ 32375], 60.00th=[ 43254], | 70.00th=[ 57410], 80.00th=[ 76022], 90.00th=[102237], 95.00th=[125305], | 99.00th=[183501], 99.50th=[214959], 99.90th=[325059], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 119, per=25.21%, avg=45.63, stdev=18.90, samples=267 iops : min= 1, max= 29, avg=10.77, stdev= 4.75, samples=267 lat (usec) : 250=2.08%, 500=1.53%, 750=0.36%, 1000=0.23% lat (msec) : 2=6.67%, 4=3.19%, 10=5.92%, 20=8.43%, 50=36.26% lat (msec) : 100=27.41%, 250=7.62%, 500=0.20%, 750=0.10% cpu : usr=0.08%, sys=4.70%, ctx=6365, 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=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=147579: Wed Mar 11 00:12:52 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(6052KiB/138445msec) clat (usec): min=164, max=363241, avg=45868.46, stdev=34710.57 lat (usec): min=164, max=363242, avg=45869.68, stdev=34710.69 clat percentiles (usec): | 1.00th=[ 202], 5.00th=[ 265], 10.00th=[ 11600], 20.00th=[ 20841], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 46400], | 70.00th=[ 55837], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[158335], 99.50th=[206570], 99.90th=[252707], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 143, per=25.25%, avg=43.68, stdev=20.77, samples=268 iops : min= 1, max= 35, avg=10.28, stdev= 5.22, samples=268 write: IOPS=11, BW=45.0KiB/s (46.1kB/s)(6236KiB/138445msec); 0 zone resets clat (usec): min=985, max=659597, avg=44208.51, stdev=50259.13 lat (usec): min=986, max=659598, avg=44210.47, stdev=50260.11 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1483], 20.00th=[ 4752], | 30.00th=[ 10683], 40.00th=[ 22414], 50.00th=[ 31589], 60.00th=[ 42206], | 70.00th=[ 54264], 80.00th=[ 71828], 90.00th=[104334], 95.00th=[131597], | 99.00th=[210764], 99.50th=[295699], 99.90th=[471860], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 5, max= 118, per=24.50%, avg=44.35, stdev=21.29, samples=272 iops : min= 1, max= 29, avg=10.46, stdev= 5.37, samples=272 lat (usec) : 250=1.86%, 500=1.56%, 750=0.23%, 1000=0.23% lat (msec) : 2=6.71%, 4=2.80%, 10=5.99%, 20=9.21%, 50=36.95% lat (msec) : 100=25.91%, 250=8.20%, 500=0.33%, 750=0.03% cpu : usr=0.06%, sys=4.70%, ctx=6447, 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=173KiB/s (178kB/s), 43.2KiB/s-44.1KiB/s (44.2kB/s-45.2kB/s), io=23.4MiB (24.6MB), run=136641-138445msec WRITE: bw=182KiB/s (186kB/s), 45.0KiB/s-46.2KiB/s (46.1kB/s-47.3kB/s), io=24.6MiB (25.7MB), run=136641-138445msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147571: Wed Mar 11 00:15:06 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(5992KiB/273321msec) clat (msec): min=5, max=1262, avg=36.27, stdev=51.50 lat (msec): min=5, max=1262, avg=36.27, stdev=51.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 82], 95.00th=[ 109], | 99.00th=[ 199], 99.50th=[ 257], 99.90th=[ 567], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 93, per=28.44%, avg=24.74, stdev=17.45, samples=467 iops : min= 1, max= 23, avg= 5.54, stdev= 4.42, samples=467 write: IOPS=5, BW=23.0KiB/s (23.6kB/s)(6296KiB/273321msec); 0 zone resets clat (msec): min=38, max=816, avg=138.81, stdev=73.39 lat (msec): min=38, max=816, avg=138.81, stdev=73.39 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 106], 50.00th=[ 118], 60.00th=[ 136], | 70.00th=[ 157], 80.00th=[ 184], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 380], 99.50th=[ 409], 99.90th=[ 793], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 55, per=25.47%, avg=23.18, stdev=10.86, samples=522 iops : min= 1, max= 13, avg= 5.14, stdev= 2.76, samples=522 lat (msec) : 10=3.22%, 20=18.10%, 50=19.04%, 100=23.31%, 250=31.90% lat (msec) : 500=4.20%, 750=0.13%, 1000=0.07%, 2000=0.03% cpu : usr=0.03%, sys=1.23%, ctx=5191, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147572: Wed Mar 11 00:15:06 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(5940KiB/273738msec) clat (msec): min=5, max=1299, avg=37.43, stdev=55.25 lat (msec): min=5, max=1299, avg=37.43, stdev=55.25 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 81], 95.00th=[ 109], | 99.00th=[ 230], 99.50th=[ 255], 99.90th=[ 609], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 95, per=28.38%, avg=24.69, stdev=17.33, samples=464 iops : min= 1, max= 23, avg= 5.53, stdev= 4.36, samples=464 write: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6348KiB/273738msec); 0 zone resets clat (msec): min=35, max=549, avg=137.15, stdev=67.82 lat (msec): min=35, max=549, avg=137.15, stdev=67.82 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 230], 95.00th=[ 284], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 498], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 56, per=25.33%, avg=23.05, stdev=10.89, samples=530 iops : min= 1, max= 14, avg= 5.11, stdev= 2.77, samples=530 lat (msec) : 10=3.58%, 20=17.45%, 50=18.75%, 100=22.92%, 250=33.46% lat (msec) : 500=3.68%, 750=0.13%, 2000=0.03% cpu : usr=0.04%, sys=1.25%, ctx=5105, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147573: Wed Mar 11 00:15:06 2026 read: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6028KiB/271752msec) clat (msec): min=5, max=536, avg=35.56, stdev=38.99 lat (msec): min=5, max=536, avg=35.56, stdev=38.99 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 79], 95.00th=[ 109], | 99.00th=[ 205], 99.50th=[ 236], 99.90th=[ 376], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 102, per=28.29%, avg=24.61, stdev=17.49, samples=472 iops : min= 1, max= 25, avg= 5.51, stdev= 4.41, samples=472 write: IOPS=5, BW=23.0KiB/s (23.6kB/s)(6260KiB/271752msec); 0 zone resets clat (msec): min=27, max=1356, avg=139.06, stdev=81.26 lat (msec): min=27, max=1356, avg=139.07, stdev=81.26 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 106], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 243], 95.00th=[ 288], | 99.00th=[ 393], 99.50th=[ 456], 99.90th=[ 793], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 55, per=25.18%, avg=22.91, stdev=11.41, samples=525 iops : min= 1, max= 13, avg= 5.08, stdev= 2.89, samples=525 lat (msec) : 10=4.36%, 20=17.12%, 50=18.75%, 100=23.83%, 250=31.22% lat (msec) : 500=4.59%, 750=0.07%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.24%, ctx=5120, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147574: Wed Mar 11 00:15:06 2026 read: IOPS=5, BW=22.3KiB/s (22.8kB/s)(6052KiB/271703msec) clat (msec): min=5, max=425, avg=35.94, stdev=38.63 lat (msec): min=5, max=425, avg=35.94, stdev=38.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 81], 95.00th=[ 110], | 99.00th=[ 176], 99.50th=[ 236], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 96, per=28.61%, avg=24.89, stdev=17.41, samples=469 iops : min= 1, max= 24, avg= 5.58, stdev= 4.38, samples=469 write: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6236KiB/271703msec); 0 zone resets clat (msec): min=31, max=1370, avg=139.07, stdev=78.45 lat (msec): min=31, max=1370, avg=139.08, stdev=78.44 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 157], 80.00th=[ 184], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 401], 99.50th=[ 435], 99.90th=[ 818], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 55, per=25.19%, avg=22.93, stdev=10.79, samples=523 iops : min= 1, max= 13, avg= 5.08, stdev= 2.75, samples=523 lat (msec) : 10=3.12%, 20=17.81%, 50=19.63%, 100=22.66%, 250=33.24% lat (msec) : 500=3.45%, 750=0.03%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.26%, ctx=5293, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=87.7KiB/s (89.8kB/s), 21.7KiB/s-22.3KiB/s (22.2kB/s-22.8kB/s), io=23.4MiB (24.6MB), run=271703-273738msec WRITE: bw=91.8KiB/s (94.0kB/s), 22.0KiB/s-23.2KiB/s (23.5kB/s-23.7kB/s), io=24.6MiB (25.7MB), run=271703-273738msec 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=147635: Wed Mar 11 00:15:49 2026 read: IOPS=11, BW=181KiB/s (186kB/s)(5920KiB/32654msec) clat (usec): min=174, max=215158, avg=44343.29, stdev=40016.50 lat (usec): min=175, max=215160, avg=44344.40, stdev=40016.48 clat percentiles (usec): | 1.00th=[ 188], 5.00th=[ 229], 10.00th=[ 249], 20.00th=[ 363], | 30.00th=[ 19268], 40.00th=[ 29492], 50.00th=[ 39584], 60.00th=[ 49021], | 70.00th=[ 58983], 80.00th=[ 73925], 90.00th=[ 95945], 95.00th=[116917], | 99.00th=[179307], 99.50th=[212861], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 62, max= 480, per=24.45%, avg=179.25, stdev=72.24, samples=63 iops : min= 3, max= 30, avg=10.48, stdev= 4.65, samples=63 write: IOPS=12, BW=195KiB/s (200kB/s)(6368KiB/32654msec); 0 zone resets clat (usec): min=1177, max=225135, avg=40609.86, stdev=45391.70 lat (usec): min=1179, max=225137, avg=40612.51, stdev=45391.21 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1762], 10.00th=[ 2008], 20.00th=[ 5276], | 30.00th=[ 8848], 40.00th=[ 13042], 50.00th=[ 21103], 60.00th=[ 31589], | 70.00th=[ 46924], 80.00th=[ 77071], 90.00th=[114820], 95.00th=[139461], | 99.00th=[183501], 99.50th=[198181], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 30, max= 370, per=25.57%, avg=197.15, stdev=87.63, samples=62 iops : min= 1, max= 23, avg=11.60, stdev= 5.59, samples=62 lat (usec) : 250=4.95%, 500=5.21%, 750=0.65%, 1000=0.13% lat (msec) : 2=5.99%, 4=3.91%, 10=9.51%, 20=9.11%, 50=26.95% lat (msec) : 100=22.53%, 250=11.07% cpu : usr=0.08%, sys=5.12%, ctx=1345, 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=147636: Wed Mar 11 00:15:49 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(5744KiB/32258msec) clat (usec): min=172, max=529776, avg=48955.88, stdev=48562.38 lat (usec): min=172, max=529777, avg=48957.00, stdev=48562.41 clat percentiles (usec): | 1.00th=[ 180], 5.00th=[ 221], 10.00th=[ 245], 20.00th=[ 474], | 30.00th=[ 21627], 40.00th=[ 30802], 50.00th=[ 42730], 60.00th=[ 55313], | 70.00th=[ 68682], 80.00th=[ 83362], 90.00th=[106431], 95.00th=[122160], | 99.00th=[187696], 99.50th=[202376], 99.90th=[530580], 99.95th=[530580], | 99.99th=[530580] bw ( KiB/s): min= 31, max= 441, per=24.34%, avg=178.39, stdev=74.32, samples=62 iops : min= 1, max= 27, avg=10.42, stdev= 4.70, samples=62 write: IOPS=12, BW=203KiB/s (208kB/s)(6544KiB/32258msec); 0 zone resets clat (usec): min=1477, max=261596, avg=35660.33, stdev=38333.18 lat (usec): min=1479, max=261597, avg=35662.96, stdev=38332.62 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1795], 10.00th=[ 1975], 20.00th=[ 5014], | 30.00th=[ 8225], 40.00th=[ 12125], 50.00th=[ 20579], 60.00th=[ 32375], | 70.00th=[ 45876], 80.00th=[ 64750], 90.00th=[ 92799], 95.00th=[111674], | 99.00th=[156238], 99.50th=[173016], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 30, max= 437, per=26.74%, avg=206.15, stdev=95.63, samples=61 iops : min= 1, max= 27, avg=12.16, stdev= 6.07, samples=61 lat (usec) : 250=4.82%, 500=4.56%, 750=0.39%, 1000=0.26% lat (msec) : 2=6.25%, 4=4.43%, 10=10.16%, 20=8.46%, 50=26.04% lat (msec) : 100=25.26%, 250=9.11%, 500=0.13%, 750=0.13% cpu : usr=0.06%, sys=5.01%, ctx=1306, 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=147637: Wed Mar 11 00:15:49 2026 read: IOPS=12, BW=195KiB/s (199kB/s)(6256KiB/32126msec) clat (usec): min=177, max=161680, avg=43839.04, stdev=36125.38 lat (usec): min=177, max=161681, avg=43850.54, stdev=36135.50 clat percentiles (usec): | 1.00th=[ 180], 5.00th=[ 223], 10.00th=[ 241], 20.00th=[ 285], | 30.00th=[ 23200], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 49546], | 70.00th=[ 59507], 80.00th=[ 70779], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[156238], 99.50th=[160433], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 60, max= 501, per=27.26%, avg=199.84, stdev=81.73, samples=61 iops : min= 3, max= 31, avg=11.77, stdev= 5.17, samples=61 write: IOPS=11, BW=188KiB/s (192kB/s)(6032KiB/32126msec); 0 zone resets clat (usec): min=1492, max=406260, avg=39398.55, stdev=46414.54 lat (usec): min=1494, max=406263, avg=39401.76, stdev=46413.79 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1811], 10.00th=[ 2114], 20.00th=[ 5735], | 30.00th=[ 9503], 40.00th=[ 15533], 50.00th=[ 23200], 60.00th=[ 33162], | 70.00th=[ 46924], 80.00th=[ 65799], 90.00th=[ 93848], 95.00th=[131597], | 99.00th=[214959], 99.50th=[221250], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 63, max= 339, per=24.33%, avg=187.61, stdev=66.44, samples=62 iops : min= 3, max= 21, avg=11.00, stdev= 4.24, samples=62 lat (usec) : 250=6.25%, 500=5.21%, 750=0.65%, 1000=0.13% lat (msec) : 2=5.21%, 4=3.26%, 10=7.81%, 20=9.24%, 50=28.39% lat (msec) : 100=26.04%, 250=7.68%, 500=0.13% cpu : usr=0.06%, sys=4.99%, ctx=1386, 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=147638: Wed Mar 11 00:15:49 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(6032KiB/30773msec) clat (usec): min=177, max=273457, avg=43812.60, stdev=39225.21 lat (usec): min=177, max=273458, avg=43814.49, stdev=39224.31 clat percentiles (usec): | 1.00th=[ 192], 5.00th=[ 219], 10.00th=[ 241], 20.00th=[ 351], | 30.00th=[ 17433], 40.00th=[ 31065], 50.00th=[ 38536], 60.00th=[ 50594], | 70.00th=[ 61604], 80.00th=[ 72877], 90.00th=[ 94897], 95.00th=[109577], | 99.00th=[162530], 99.50th=[181404], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 30, max= 434, per=26.58%, avg=194.81, stdev=83.53, samples=59 iops : min= 1, max= 27, avg=11.44, stdev= 5.30, samples=59 write: IOPS=12, BW=203KiB/s (208kB/s)(6256KiB/30773msec); 0 zone resets clat (usec): min=1486, max=231877, avg=36077.20, stdev=41204.36 lat (usec): min=1487, max=231879, avg=36079.25, stdev=41204.35 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1680], 10.00th=[ 1876], 20.00th=[ 4047], | 30.00th=[ 6915], 40.00th=[ 11600], 50.00th=[ 18744], 60.00th=[ 28967], | 70.00th=[ 45876], 80.00th=[ 67634], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[173016], 99.50th=[229639], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 59, max= 380, per=26.29%, avg=202.73, stdev=81.24, samples=59 iops : min= 3, max= 23, avg=11.95, stdev= 5.13, samples=59 lat (usec) : 250=5.86%, 500=4.30%, 750=0.13%, 1000=0.52% lat (msec) : 2=7.42%, 4=4.17%, 10=10.29%, 20=8.46%, 50=24.87% lat (msec) : 100=25.91%, 250=7.94%, 500=0.13% cpu : usr=0.05%, sys=5.01%, ctx=1299, 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=734KiB/s (751kB/s), 178KiB/s-196KiB/s (182kB/s-201kB/s), io=23.4MiB (24.5MB), run=30773-32654msec WRITE: bw=772KiB/s (790kB/s), 188KiB/s-203KiB/s (192kB/s-208kB/s), io=24.6MiB (25.8MB), run=30773-32654msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147640: Wed Mar 11 00:16:35 2026 read: IOPS=4, BW=75.8KiB/s (77.6kB/s)(5920KiB/78124msec) clat (msec): min=7, max=345, avg=47.49, stdev=48.44 lat (msec): min=7, max=345, avg=47.50, stdev=48.44 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 63], 90.00th=[ 106], 95.00th=[ 157], | 99.00th=[ 243], 99.50th=[ 305], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 351, per=29.46%, avg=89.85, stdev=58.28, samples=127 iops : min= 1, max= 21, avg= 4.81, stdev= 3.71, samples=127 write: IOPS=5, BW=81.5KiB/s (83.5kB/s)(6368KiB/78124msec); 0 zone resets clat (msec): min=47, max=648, avg=152.05, stdev=80.33 lat (msec): min=47, max=648, avg=152.05, stdev=80.33 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 67], 10.00th=[ 81], 20.00th=[ 95], | 30.00th=[ 108], 40.00th=[ 117], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 321], | 99.00th=[ 502], 99.50th=[ 567], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 29, max= 160, per=26.54%, avg=85.18, stdev=37.09, samples=145 iops : min= 1, max= 10, avg= 4.50, stdev= 2.37, samples=145 lat (msec) : 10=0.78%, 20=11.59%, 50=23.18%, 100=19.79%, 250=39.84% lat (msec) : 500=4.43%, 750=0.39% cpu : usr=0.04%, sys=1.25%, ctx=1443, 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=147641: Wed Mar 11 00:16:35 2026 read: IOPS=4, BW=73.3KiB/s (75.0kB/s)(5744KiB/78396msec) clat (msec): min=4, max=324, avg=48.12, stdev=52.17 lat (msec): min=4, max=324, avg=48.12, stdev=52.17 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 116], 95.00th=[ 176], | 99.00th=[ 275], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 22, max= 318, per=29.29%, avg=89.33, stdev=61.40, samples=125 iops : min= 1, max= 19, avg= 4.77, stdev= 3.93, samples=125 write: IOPS=5, BW=83.5KiB/s (85.5kB/s)(6544KiB/78396msec); 0 zone resets clat (msec): min=30, max=596, avg=149.33, stdev=77.60 lat (msec): min=30, max=596, avg=149.33, stdev=77.60 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 116], 50.00th=[ 132], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 197], 90.00th=[ 251], 95.00th=[ 305], | 99.00th=[ 405], 99.50th=[ 464], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 30, max= 192, per=26.77%, avg=85.94, stdev=39.54, samples=148 iops : min= 1, max= 12, avg= 4.55, stdev= 2.53, samples=148 lat (msec) : 10=1.43%, 20=12.24%, 50=21.48%, 100=21.22%, 250=37.89% lat (msec) : 500=5.47%, 750=0.26% cpu : usr=0.03%, sys=1.22%, ctx=1369, 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=147642: Wed Mar 11 00:16:35 2026 read: IOPS=5, BW=82.9KiB/s (84.9kB/s)(6256KiB/75488msec) clat (msec): min=7, max=323, avg=44.62, stdev=42.93 lat (msec): min=7, max=323, avg=44.62, stdev=42.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 65], 90.00th=[ 92], 95.00th=[ 126], | 99.00th=[ 255], 99.50th=[ 266], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 30, max= 288, per=29.46%, avg=89.85, stdev=62.13, samples=137 iops : min= 1, max= 18, avg= 4.80, stdev= 3.93, samples=137 write: IOPS=4, BW=79.9KiB/s (81.8kB/s)(6032KiB/75488msec); 0 zone resets clat (msec): min=47, max=543, avg=153.87, stdev=77.33 lat (msec): min=47, max=543, avg=153.88, stdev=77.33 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 75], 10.00th=[ 84], 20.00th=[ 97], | 30.00th=[ 108], 40.00th=[ 121], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 194], 90.00th=[ 262], 95.00th=[ 317], | 99.00th=[ 435], 99.50th=[ 510], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 192, per=24.87%, avg=79.82, stdev=35.38, samples=147 iops : min= 1, max= 12, avg= 4.17, stdev= 2.29, samples=147 lat (msec) : 10=1.30%, 20=12.37%, 50=23.57%, 100=20.96%, 250=35.55% lat (msec) : 500=5.99%, 750=0.26% cpu : usr=0.03%, sys=1.28%, ctx=1437, 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=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=147643: Wed Mar 11 00:16:35 2026 read: IOPS=4, BW=77.6KiB/s (79.4kB/s)(6032KiB/77778msec) clat (msec): min=6, max=301, avg=45.21, stdev=42.52 lat (msec): min=6, max=301, avg=45.21, stdev=42.52 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 61], 90.00th=[ 91], 95.00th=[ 140], | 99.00th=[ 220], 99.50th=[ 257], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 286, per=30.81%, avg=93.98, stdev=58.97, samples=125 iops : min= 1, max= 17, avg= 5.06, stdev= 3.71, samples=125 write: IOPS=5, BW=80.4KiB/s (82.4kB/s)(6256KiB/77778msec); 0 zone resets clat (msec): min=38, max=452, avg=155.20, stdev=77.16 lat (msec): min=38, max=452, avg=155.21, stdev=77.16 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 72], 10.00th=[ 80], 20.00th=[ 96], | 30.00th=[ 109], 40.00th=[ 122], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 169], 80.00th=[ 203], 90.00th=[ 259], 95.00th=[ 317], | 99.00th=[ 418], 99.50th=[ 447], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 30, max= 192, per=25.43%, avg=81.63, stdev=38.58, samples=150 iops : min= 1, max= 12, avg= 4.28, stdev= 2.49, samples=150 lat (msec) : 10=1.30%, 20=12.50%, 50=21.09%, 100=21.88%, 250=37.24% lat (msec) : 500=5.99% cpu : usr=0.04%, sys=1.30%, ctx=1380, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=306KiB/s (313kB/s), 73.3KiB/s-82.9KiB/s (75.0kB/s-84.9kB/s), io=23.4MiB (24.5MB), run=75488-78396msec WRITE: bw=321KiB/s (329kB/s), 79.9KiB/s-83.5KiB/s (81.8kB/s-85.5kB/s), io=24.6MiB (25.8MB), run=75488-78396msec 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=147666: Wed Mar 11 00:16:53 2026 read: IOPS=1, BW=1684KiB/s (1724kB/s)(7168KiB/4257msec) clat (msec): min=195, max=514, avg=295.55, stdev=106.93 lat (msec): min=195, max=514, avg=295.55, stdev=106.93 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 224], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 264], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 338], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1430, max= 4079, per=74.54%, avg=2861.50, stdev=1364.37, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1203KiB/s (1232kB/s)(5120KiB/4257msec); 0 zone resets clat (msec): min=261, max=538, avg=384.78, stdev=115.29 lat (msec): min=261, max=538, avg=384.87, stdev=115.34 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 472], 80.00th=[ 472], 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= 1796, max= 4079, per=45.64%, avg=2453.00, stdev=1087.06, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=25.00%, 500=58.33%, 750=16.67% cpu : usr=0.02%, sys=9.47%, ctx=262, 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=147667: Wed Mar 11 00:16:53 2026 read: IOPS=0, BW=384KiB/s (393kB/s)(2048KiB/5334msec) clat (msec): min=177, max=219, avg=198.18, stdev=29.54 lat (msec): min=177, max=219, avg=198.19, stdev=29.54 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 220], 95.00th=[ 220], | 99.00th=[ 220], 99.50th=[ 220], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 1393, max= 2039, per=44.70%, avg=1716.00, stdev=456.79, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1920KiB/s (1966kB/s)(10.0MiB/5334msec); 0 zone resets clat (msec): min=174, max=887, avg=478.81, stdev=261.09 lat (msec): min=174, max=887, avg=479.05, stdev=261.18 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 211], | 30.00th=[ 247], 40.00th=[ 288], 50.00th=[ 388], 60.00th=[ 447], | 70.00th=[ 617], 80.00th=[ 760], 90.00th=[ 768], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1976, max= 4063, per=48.67%, avg=2616.17, stdev=950.39, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, 1000=25.00% cpu : usr=0.00%, sys=8.66%, ctx=147, 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=147668: Wed Mar 11 00:16:53 2026 read: IOPS=1, BW=1636KiB/s (1675kB/s)(6144KiB/3755msec) clat (msec): min=2, max=367, avg=180.87, stdev=140.73 lat (msec): min=2, max=367, avg=180.87, stdev=140.73 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 26], | 30.00th=[ 26], 40.00th=[ 209], 50.00th=[ 209], 60.00th=[ 230], | 70.00th=[ 251], 80.00th=[ 251], 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= 2039, max= 3953, per=69.73%, avg=2677.00, stdev=1105.05, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1636KiB/s (1675kB/s)(6144KiB/3755msec); 0 zone resets clat (msec): min=99, max=931, avg=381.78, stdev=293.73 lat (msec): min=99, max=931, avg=381.86, stdev=293.75 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 388], | 70.00th=[ 418], 80.00th=[ 418], 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= 1796, max= 2039, per=36.61%, avg=1967.60, stdev=100.16, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 4=8.33%, 50=8.33%, 100=8.33%, 250=33.33%, 500=33.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=10.52%, ctx=144, 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=147669: Wed Mar 11 00:16:53 2026 read: IOPS=1, BW=1060KiB/s (1085kB/s)(5120KiB/4830msec) clat (usec): min=665, max=371267, avg=155536.94, stdev=165735.41 lat (usec): min=666, max=371267, avg=155537.88, stdev=165735.29 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], 20.00th=[ 668], | 30.00th=[ 3130], 40.00th=[ 3130], 50.00th=[124257], 60.00th=[124257], | 70.00th=[278922], 80.00th=[278922], 90.00th=[371196], 95.00th=[371196], | 99.00th=[371196], 99.50th=[371196], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 3923, max= 4079, per=100.00%, avg=4001.00, stdev=110.31, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1484KiB/s (1520kB/s)(7168KiB/4830msec); 0 zone resets clat (msec): min=207, max=792, avg=526.82, stdev=221.91 lat (msec): min=207, max=792, avg=526.91, stdev=221.92 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 309], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 575], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 776], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1796, max= 2039, per=36.81%, avg=1978.60, stdev=104.25, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=6.61%, ctx=183, 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=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=3840KiB/s (3932kB/s), 384KiB/s-1684KiB/s (393kB/s-1724kB/s), io=20.0MiB (20.0MB), run=3755-5334msec WRITE: bw=5375KiB/s (5504kB/s), 1203KiB/s-1920KiB/s (1232kB/s-1966kB/s), io=28.0MiB (29.4MB), run=3755-5334msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147662: Wed Mar 11 00:16:53 2026 read: IOPS=1, BW=1686KiB/s (1727kB/s)(7168KiB/4251msec) clat (msec): min=107, max=638, avg=274.94, stdev=194.71 lat (msec): min=107, max=638, avg=274.94, stdev=194.71 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 114], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 418], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1921, max= 4278, per=74.69%, avg=2556.75, stdev=1148.67, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1204KiB/s (1233kB/s)(5120KiB/4251msec); 0 zone resets clat (msec): min=195, max=1064, avg=454.54, stdev=347.29 lat (msec): min=196, max=1064, avg=454.63, stdev=347.30 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1426, max= 2039, per=39.12%, avg=1874.60, stdev=254.49, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=2.28%, ctx=47, 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=147663: Wed Mar 11 00:16:53 2026 read: IOPS=0, BW=342KiB/s (351kB/s)(2048KiB/5983msec) clat (msec): min=254, max=563, avg=409.03, stdev=219.01 lat (msec): min=254, max=563, avg=409.04, stdev=219.01 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1438, max= 2043, per=50.85%, avg=1740.50, stdev=427.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1712KiB/s (1753kB/s)(10.0MiB/5983msec); 0 zone resets clat (msec): min=151, max=1119, avg=489.92, stdev=296.76 lat (msec): min=151, max=1119, avg=490.02, stdev=296.76 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 188], | 30.00th=[ 211], 40.00th=[ 405], 50.00th=[ 477], 60.00th=[ 489], | 70.00th=[ 502], 80.00th=[ 558], 90.00th=[ 810], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1921, max= 6131, per=53.95%, avg=2585.43, stdev=1563.94, samples=7 iops : min= 1, max= 5, avg= 1.57, stdev= 1.51, samples=7 lat (msec) : 250=25.00%, 500=33.33%, 750=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.46%, ctx=75, 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=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=147664: Wed Mar 11 00:16:53 2026 read: IOPS=1, BW=1153KiB/s (1180kB/s)(6144KiB/5331msec) clat (msec): min=72, max=685, avg=305.36, stdev=238.14 lat (msec): min=72, max=685, avg=305.37, stdev=238.14 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 106], | 30.00th=[ 106], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 313], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1992, max= 2043, per=58.90%, avg=2016.20, stdev=23.30, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1153KiB/s (1180kB/s)(6144KiB/5331msec); 0 zone resets clat (msec): min=251, max=795, avg=506.55, stdev=229.37 lat (msec): min=252, max=795, avg=506.68, stdev=229.30 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 506], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1440, max= 4000, per=47.48%, avg=2275.20, stdev=992.82, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=16.67%, 500=41.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.23%, ctx=84, 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=147665: Wed Mar 11 00:16:53 2026 read: IOPS=1, BW=1097KiB/s (1123kB/s)(5120KiB/4667msec) clat (msec): min=129, max=439, avg=238.38, stdev=130.40 lat (msec): min=129, max=439, avg=238.38, stdev=130.40 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1980, max= 4015, per=78.24%, avg=2678.00, stdev=1158.25, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1536KiB/s (1573kB/s)(7168KiB/4667msec); 0 zone resets clat (msec): min=183, max=766, avg=457.98, stdev=181.57 lat (msec): min=183, max=766, avg=458.46, stdev=181.47 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 355], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 451], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 575], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1477, max= 2035, per=39.37%, avg=1886.40, stdev=232.69, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.06%, ctx=95, 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=3423KiB/s (3505kB/s), 342KiB/s-1686KiB/s (351kB/s-1727kB/s), io=20.0MiB (20.0MB), run=4251-5983msec WRITE: bw=4792KiB/s (4907kB/s), 1153KiB/s-1712KiB/s (1180kB/s-1753kB/s), io=28.0MiB (29.4MB), run=4251-5983msec 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=147676: Wed Mar 11 00:17:10 2026 read: IOPS=0, BW=2079KiB/s (2129kB/s)(12.0MiB/5910msec) clat (msec): min=987, max=3633, avg=1919.44, stdev=1486.43 lat (msec): min=987, max=3633, avg=1919.44, stdev=1486.43 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 3641], 80.00th=[ 3641], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 8015, max= 8110, per=100.00%, avg=8062.50, stdev=67.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.09%, ctx=670, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147677: Wed Mar 11 00:17:10 2026 read: IOPS=0, BW=713KiB/s (730kB/s)(4096KiB/5747msec) clat (nsec): min=3569.2M, max=3569.2M, avg=3569159737.00, stdev= 0.00 lat (nsec): min=3569.2M, max=3569.2M, avg=3569162490.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3574], 5.00th=[ 3574], 10.00th=[ 3574], 20.00th=[ 3574], | 30.00th=[ 3574], 40.00th=[ 3574], 50.00th=[ 3574], 60.00th=[ 3574], | 70.00th=[ 3574], 80.00th=[ 3574], 90.00th=[ 3574], 95.00th=[ 3574], | 99.00th=[ 3574], 99.50th=[ 3574], 99.90th=[ 3574], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1425KiB/s (1460kB/s)(8192KiB/5747msec); 0 zone resets clat (msec): min=392, max=1588, avg=990.17, stdev=845.58 lat (msec): min=392, max=1588, avg=990.45, stdev=845.66 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.18%, ctx=399, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147678: Wed Mar 11 00:17:10 2026 write: IOPS=0, BW=2026KiB/s (2075kB/s)(12.0MiB/6064msec); 0 zone resets clat (msec): min=865, max=3760, avg=1960.22, stdev=1570.87 lat (msec): min=866, max=3760, avg=1960.57, stdev=1571.06 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 3775], 80.00th=[ 3775], 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= 7892, max= 8110, per=100.00%, avg=8001.00, stdev=154.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.10%, ctx=51, 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=147679: Wed Mar 11 00:17:10 2026 write: IOPS=0, BW=2480KiB/s (2539kB/s)(12.0MiB/4955msec); 0 zone resets clat (msec): min=429, max=3888, avg=1606.67, stdev=1976.79 lat (msec): min=430, max=3889, avg=1607.12, stdev=1976.69 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 3876], 80.00th=[ 3876], 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= 5988, max= 7713, per=100.00%, avg=6850.50, stdev=1219.76, 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=2.00%, ctx=50, 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=2772KiB/s (2839kB/s), 713KiB/s-2079KiB/s (730kB/s-2129kB/s), io=16.0MiB (16.8MB), run=5747-5910msec WRITE: bw=5404KiB/s (5533kB/s), 1425KiB/s-2480KiB/s (1460kB/s-2539kB/s), io=32.0MiB (33.6MB), run=4955-6064msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147681: Wed Mar 11 00:17:11 2026 read: IOPS=0, BW=2195KiB/s (2248kB/s)(12.0MiB/5598msec) clat (msec): min=389, max=3589, avg=1842.57, stdev=1620.33 lat (msec): min=389, max=3589, avg=1842.57, stdev=1620.33 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 3574], 80.00th=[ 3574], 90.00th=[ 3574], 95.00th=[ 3574], | 99.00th=[ 3574], 99.50th=[ 3574], 99.90th=[ 3574], 99.95th=[ 3574], | 99.99th=[ 3574] 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 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.75%, ctx=61, 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=147682: Wed Mar 11 00:17:11 2026 read: IOPS=0, BW=727KiB/s (744kB/s)(4096KiB/5637msec) clat (nsec): min=3486.5M, max=3486.5M, avg=3486489370.00, stdev= 0.00 lat (nsec): min=3486.5M, max=3486.5M, avg=3486492145.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3473], 5.00th=[ 3473], 10.00th=[ 3473], 20.00th=[ 3473], | 30.00th=[ 3473], 40.00th=[ 3473], 50.00th=[ 3473], 60.00th=[ 3473], | 70.00th=[ 3473], 80.00th=[ 3473], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 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=1453KiB/s (1488kB/s)(8192KiB/5637msec); 0 zone resets clat (msec): min=371, max=1771, avg=1071.79, stdev=989.96 lat (msec): min=372, max=1772, avg=1072.10, stdev=989.88 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 1770], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] 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 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.26%, ctx=27, 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=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=147683: Wed Mar 11 00:17:11 2026 write: IOPS=0, BW=1993KiB/s (2041kB/s)(12.0MiB/6165msec); 0 zone resets clat (msec): min=390, max=4580, avg=2053.01, stdev=2225.07 lat (msec): min=394, max=4581, avg=2054.64, stdev=2223.99 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 4597], 80.00th=[ 4597], 90.00th=[ 4597], 95.00th=[ 4597], | 99.00th=[ 4597], 99.50th=[ 4597], 99.90th=[ 4597], 99.95th=[ 4597], | 99.99th=[ 4597] 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 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.54%, ctx=45, 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=147684: Wed Mar 11 00:17:11 2026 write: IOPS=0, BW=2248KiB/s (2302kB/s)(12.0MiB/5465msec); 0 zone resets clat (msec): min=236, max=4836, avg=1815.40, stdev=2617.50 lat (msec): min=236, max=4837, avg=1815.96, stdev=2617.47 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 4866], 80.00th=[ 4866], 90.00th=[ 4866], 95.00th=[ 4866], | 99.00th=[ 4866], 99.50th=[ 4866], 99.90th=[ 4866], 99.95th=[ 4866], | 99.99th=[ 4866] bw ( KiB/s): min=11115, max=11115, per=100.00%, avg=11115.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.59%, ctx=47, 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=2907KiB/s (2976kB/s), 727KiB/s-2195KiB/s (744kB/s-2248kB/s), io=16.0MiB (16.8MB), run=5598-5637msec WRITE: bw=5315KiB/s (5443kB/s), 1453KiB/s-2248KiB/s (1488kB/s-2302kB/s), io=32.0MiB (33.6MB), run=5465-6165msec