== sanity test 398b: DIO and buffer IO race ============== 09:04:57 (1787835897) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.02185 s, 8.4 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=144685: Thu Aug 27 09:07:43 2026 read: IOPS=10, BW=41.0KiB/s (41.0kB/s)(5992KiB/146096msec) clat (usec): min=31, max=407689, avg=45783.23, stdev=37158.33 lat (usec): min=31, max=407689, avg=45788.61, stdev=37159.16 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 94], 20.00th=[ 19530], | 30.00th=[ 25560], 40.00th=[ 31589], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 55837], 80.00th=[ 70779], 90.00th=[ 91751], 95.00th=[107480], | 99.00th=[170918], 99.50th=[212861], 99.90th=[291505], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 119, per=25.39%, avg=41.39, stdev=18.72, samples=282 iops : min= 1, max= 29, avg= 9.68, stdev= 4.71, samples=282 write: IOPS=10, BW=43.1KiB/s (44.1kB/s)(6296KiB/146096msec); 0 zone resets clat (usec): min=988, max=819003, avg=48904.23, stdev=54172.57 lat (usec): min=988, max=819005, avg=48907.52, stdev=54171.89 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1549], 20.00th=[ 4113], | 30.00th=[ 8848], 40.00th=[ 20579], 50.00th=[ 34866], 60.00th=[ 49021], | 70.00th=[ 65799], 80.00th=[ 85459], 90.00th=[115868], 95.00th=[147850], | 99.00th=[206570], 99.50th=[256902], 99.90th=[387974], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 119, per=25.22%, avg=42.87, stdev=20.07, samples=286 iops : min= 1, max= 29, avg=10.06, stdev= 5.04, samples=286 lat (usec) : 50=0.59%, 100=4.39%, 250=0.68%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.13% lat (msec) : 2=6.12%, 4=3.97%, 10=6.32%, 20=7.81%, 50=32.13% lat (msec) : 100=26.79%, 250=10.42%, 500=0.42%, 1000=0.03% cpu : usr=0.09%, sys=4.97%, ctx=6509, 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=144686: Thu Aug 27 09:07:43 2026 read: IOPS=10, BW=40.7KiB/s (41.7kB/s)(5940KiB/145795msec) clat (usec): min=29, max=324385, avg=45802.18, stdev=36332.85 lat (usec): min=29, max=324386, avg=45804.18, stdev=36332.78 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 85], 20.00th=[ 19268], | 30.00th=[ 25822], 40.00th=[ 31589], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 55837], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[109577], | 99.00th=[175113], 99.50th=[214959], 99.90th=[278922], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 127, per=25.00%, avg=40.76, stdev=19.40, samples=283 iops : min= 1, max= 31, avg= 9.53, stdev= 4.90, samples=283 write: IOPS=10, BW=43.5KiB/s (44.6kB/s)(6348KiB/145795msec); 0 zone resets clat (usec): min=968, max=867786, avg=48685.68, stdev=56435.03 lat (usec): min=969, max=867787, avg=48688.22, stdev=56434.57 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1516], 20.00th=[ 4080], | 30.00th=[ 8717], 40.00th=[ 22152], 50.00th=[ 35390], 60.00th=[ 47449], | 70.00th=[ 61604], 80.00th=[ 81265], 90.00th=[115868], 95.00th=[145753], | 99.00th=[231736], 99.50th=[325059], 99.90th=[404751], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 103, per=25.48%, avg=43.31, stdev=19.75, samples=284 iops : min= 1, max= 25, avg=10.17, stdev= 4.97, samples=284 lat (usec) : 50=0.49%, 100=4.65%, 250=0.36%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=6.51%, 4=3.71%, 10=6.12%, 20=7.81%, 50=32.39% lat (msec) : 100=26.99%, 250=10.09%, 500=0.52%, 1000=0.03% cpu : usr=0.07%, sys=4.83%, ctx=6423, 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=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=144687: Thu Aug 27 09:07:43 2026 read: IOPS=10, BW=41.9KiB/s (42.9kB/s)(6028KiB/143757msec) clat (usec): min=33, max=316425, avg=45391.97, stdev=35867.19 lat (usec): min=33, max=316427, avg=45394.37, stdev=35869.54 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 90], 20.00th=[ 19530], | 30.00th=[ 25822], 40.00th=[ 31327], 50.00th=[ 37487], 60.00th=[ 45351], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[109577], | 99.00th=[170918], 99.50th=[204473], 99.90th=[267387], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7, max= 124, per=25.61%, avg=41.75, stdev=20.74, samples=280 iops : min= 1, max= 31, avg= 9.78, stdev= 5.23, samples=280 write: IOPS=10, BW=43.5KiB/s (44.6kB/s)(6260KiB/143757msec); 0 zone resets clat (usec): min=932, max=851231, avg=47825.42, stdev=54201.28 lat (usec): min=932, max=851232, avg=47830.09, stdev=54198.91 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1254], 10.00th=[ 1598], 20.00th=[ 4293], | 30.00th=[ 8291], 40.00th=[ 19268], 50.00th=[ 34866], 60.00th=[ 49021], | 70.00th=[ 62653], 80.00th=[ 83362], 90.00th=[114820], 95.00th=[141558], | 99.00th=[223347], 99.50th=[263193], 99.90th=[459277], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 124, per=25.32%, avg=43.05, stdev=19.30, samples=282 iops : min= 1, max= 31, avg=10.10, stdev= 4.87, samples=282 lat (usec) : 50=0.72%, 100=4.39%, 250=0.20%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=5.96%, 4=4.00%, 10=7.36%, 20=7.85%, 50=32.10% lat (msec) : 100=27.08%, 250=9.70%, 500=0.33%, 1000=0.03% cpu : usr=0.08%, sys=4.79%, ctx=6353, 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=144688: Thu Aug 27 09:07:43 2026 read: IOPS=10, BW=41.2KiB/s (42.1kB/s)(6052KiB/147052msec) clat (usec): min=33, max=844615, avg=45981.44, stdev=41687.42 lat (usec): min=34, max=844616, avg=45988.92, stdev=41685.93 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 86], 20.00th=[ 19006], | 30.00th=[ 24511], 40.00th=[ 31327], 50.00th=[ 38011], 60.00th=[ 46924], | 70.00th=[ 56361], 80.00th=[ 71828], 90.00th=[ 89654], 95.00th=[108528], | 99.00th=[156238], 99.50th=[212861], 99.90th=[358613], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 103, per=25.12%, avg=40.95, stdev=20.66, samples=284 iops : min= 1, max= 25, avg= 9.58, stdev= 5.21, samples=284 write: IOPS=10, BW=42.4KiB/s (43.4kB/s)(6236KiB/147052msec); 0 zone resets clat (usec): min=983, max=478530, avg=49311.02, stdev=52107.36 lat (usec): min=984, max=478531, avg=49313.53, stdev=52106.69 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1844], 20.00th=[ 4752], | 30.00th=[ 9765], 40.00th=[ 21890], 50.00th=[ 34341], 60.00th=[ 47973], | 70.00th=[ 64750], 80.00th=[ 85459], 90.00th=[120062], 95.00th=[156238], | 99.00th=[210764], 99.50th=[246416], 99.90th=[308282], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 7, max= 108, per=24.78%, avg=42.12, stdev=19.80, samples=285 iops : min= 1, max= 27, avg= 9.88, stdev= 4.98, samples=285 lat (usec) : 50=0.78%, 100=4.43%, 250=0.46%, 500=0.20%, 750=0.13% lat (usec) : 1000=0.10% lat (msec) : 2=5.31%, 4=3.81%, 10=6.51%, 20=8.50%, 50=31.84% lat (msec) : 100=27.02%, 250=10.55%, 500=0.36%, 1000=0.03% cpu : usr=0.08%, sys=4.90%, ctx=6458, 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=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=163KiB/s (167kB/s), 40.7KiB/s-41.9KiB/s (41.7kB/s-42.9kB/s), io=23.4MiB (24.6MB), run=143757-147052msec WRITE: bw=171KiB/s (175kB/s), 42.4KiB/s-43.5KiB/s (43.4kB/s-44.6kB/s), io=24.6MiB (25.7MB), run=143757-147052msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144690: Thu Aug 27 09:10:25 2026 read: IOPS=4, BW=19.5KiB/s (19.0kB/s)(5992KiB/307359msec) clat (msec): min=5, max=902, avg=41.46, stdev=49.02 lat (msec): min=5, max=902, avg=41.46, stdev=49.02 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 84], 95.00th=[ 116], | 99.00th=[ 207], 99.50th=[ 288], 99.90th=[ 625], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 104, per=29.84%, avg=22.98, stdev=16.03, samples=502 iops : min= 1, max= 26, avg= 5.11, stdev= 4.03, samples=502 write: IOPS=5, BW=20.5KiB/s (20.0kB/s)(6296KiB/307359msec); 0 zone resets clat (msec): min=32, max=696, avg=155.71, stdev=83.06 lat (msec): min=32, max=696, avg=155.72, stdev=83.07 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 106], 40.00th=[ 117], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 178], 80.00th=[ 211], 90.00th=[ 264], 95.00th=[ 326], | 99.00th=[ 435], 99.50th=[ 481], 99.90th=[ 659], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 55, per=25.03%, avg=20.27, stdev=10.04, samples=594 iops : min= 1, max= 13, avg= 4.42, stdev= 2.56, samples=594 lat (msec) : 10=2.51%, 20=13.35%, 50=22.72%, 100=20.31%, 250=34.70% lat (msec) : 500=6.15%, 750=0.23%, 1000=0.03% cpu : usr=0.04%, sys=1.02%, ctx=5253, 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=144691: Thu Aug 27 09:10:25 2026 read: IOPS=4, BW=19.3KiB/s (19.7kB/s)(5940KiB/308497msec) clat (msec): min=6, max=992, avg=42.06, stdev=48.71 lat (msec): min=6, max=992, avg=42.06, stdev=48.71 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 86], 95.00th=[ 117], | 99.00th=[ 213], 99.50th=[ 271], 99.90th=[ 550], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 88, per=29.90%, avg=23.03, stdev=15.84, samples=496 iops : min= 1, max= 22, avg= 5.11, stdev= 3.98, samples=496 write: IOPS=5, BW=20.6KiB/s (21.1kB/s)(6348KiB/308497msec); 0 zone resets clat (msec): min=36, max=738, avg=154.92, stdev=82.28 lat (msec): min=36, max=738, avg=154.92, stdev=82.28 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 91], | 30.00th=[ 106], 40.00th=[ 120], 50.00th=[ 134], 60.00th=[ 153], | 70.00th=[ 178], 80.00th=[ 209], 90.00th=[ 264], 95.00th=[ 309], | 99.00th=[ 435], 99.50th=[ 510], 99.90th=[ 701], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 56, per=25.10%, avg=20.33, stdev=10.20, samples=597 iops : min= 1, max= 14, avg= 4.44, stdev= 2.60, samples=597 lat (msec) : 10=2.31%, 20=13.22%, 50=22.01%, 100=20.83%, 250=35.68% lat (msec) : 500=5.60%, 750=0.33%, 1000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5373, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144692: Thu Aug 27 09:10:25 2026 read: IOPS=4, BW=19.7KiB/s (20.1kB/s)(6028KiB/306379msec) clat (msec): min=5, max=390, avg=42.34, stdev=38.61 lat (msec): min=5, max=390, avg=42.35, stdev=38.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 59], 90.00th=[ 89], 95.00th=[ 123], | 99.00th=[ 186], 99.50th=[ 220], 99.90th=[ 342], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 87, per=29.11%, avg=22.41, stdev=14.88, samples=517 iops : min= 1, max= 21, avg= 4.96, stdev= 3.75, samples=517 write: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6260KiB/306379msec); 0 zone resets clat (msec): min=36, max=1226, avg=154.90, stdev=82.92 lat (msec): min=36, max=1226, avg=154.90, stdev=82.92 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 78], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 120], 50.00th=[ 136], 60.00th=[ 153], | 70.00th=[ 176], 80.00th=[ 209], 90.00th=[ 253], 95.00th=[ 309], | 99.00th=[ 435], 99.50th=[ 510], 99.90th=[ 676], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 55, per=25.25%, avg=20.46, stdev= 9.75, samples=586 iops : min= 1, max= 13, avg= 4.47, stdev= 2.48, samples=586 lat (msec) : 10=2.02%, 20=12.50%, 50=22.04%, 100=21.74%, 250=36.23% lat (msec) : 500=5.21%, 750=0.23%, 2000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5391, 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=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=144693: Thu Aug 27 09:10:25 2026 read: IOPS=4, BW=19.8KiB/s (20.2kB/s)(6052KiB/306062msec) clat (msec): min=6, max=549, avg=42.02, stdev=41.55 lat (msec): min=6, max=549, avg=42.02, stdev=41.55 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 88], 95.00th=[ 118], | 99.00th=[ 190], 99.50th=[ 226], 99.90th=[ 472], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 95, per=29.38%, avg=22.63, stdev=15.46, samples=515 iops : min= 1, max= 23, avg= 5.01, stdev= 3.89, samples=515 write: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6236KiB/306062msec); 0 zone resets clat (msec): min=35, max=1388, avg=155.45, stdev=84.05 lat (msec): min=35, max=1388, avg=155.45, stdev=84.05 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 105], 40.00th=[ 121], 50.00th=[ 136], 60.00th=[ 153], | 70.00th=[ 176], 80.00th=[ 207], 90.00th=[ 264], 95.00th=[ 313], | 99.00th=[ 430], 99.50th=[ 464], 99.90th=[ 485], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 55, per=24.87%, avg=20.15, stdev= 9.85, samples=593 iops : min= 1, max= 13, avg= 4.39, stdev= 2.51, samples=593 lat (msec) : 10=1.86%, 20=13.02%, 50=23.18%, 100=20.90%, 250=34.96% lat (msec) : 500=6.02%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.07%, ctx=5370, 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=77.8KiB/s (79.7kB/s), 19.3KiB/s-19.8KiB/s (19.7kB/s-20.2kB/s), io=23.4MiB (24.6MB), run=306062-308497msec WRITE: bw=81.5KiB/s (83.4kB/s), 20.4KiB/s-20.6KiB/s (20.9kB/s-21.1kB/s), io=24.6MiB (25.7MB), run=306062-308497msec 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=144761: Thu Aug 27 09:11:03 2026 read: IOPS=13, BW=216KiB/s (221kB/s)(5920KiB/27438msec) clat (usec): min=36, max=177502, avg=36833.06, stdev=31034.09 lat (usec): min=36, max=177503, avg=36834.25, stdev=31034.13 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 77], | 30.00th=[ 19530], 40.00th=[ 28181], 50.00th=[ 34341], 60.00th=[ 42730], | 70.00th=[ 51119], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[ 90702], | 99.00th=[129500], 99.50th=[139461], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 62, max= 479, per=25.54%, avg=215.54, stdev=91.01, samples=54 iops : min= 3, max= 29, avg=12.72, stdev= 5.73, samples=54 write: IOPS=14, BW=232KiB/s (238kB/s)(6368KiB/27438msec); 0 zone resets clat (usec): min=1389, max=234280, avg=33737.63, stdev=35948.65 lat (usec): min=1391, max=234284, avg=33740.09, stdev=35948.32 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1713], 10.00th=[ 2376], 20.00th=[ 5800], | 30.00th=[ 8455], 40.00th=[ 14091], 50.00th=[ 21365], 60.00th=[ 29754], | 70.00th=[ 41157], 80.00th=[ 58459], 90.00th=[ 81265], 95.00th=[106431], | 99.00th=[149947], 99.50th=[223347], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 32, max= 605, per=26.60%, avg=236.21, stdev=100.70, samples=53 iops : min= 2, max= 37, avg=14.04, stdev= 6.28, samples=53 lat (usec) : 50=2.21%, 100=8.72%, 250=1.04%, 500=0.13%, 750=0.26% lat (msec) : 2=4.56%, 4=3.65%, 10=9.64%, 20=8.72%, 50=33.07% lat (msec) : 100=23.70%, 250=4.30% cpu : usr=0.08%, sys=5.85%, ctx=1396, 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=144762: Thu Aug 27 09:11:03 2026 read: IOPS=12, BW=203KiB/s (207kB/s)(5744KiB/28347msec) clat (usec): min=35, max=294309, avg=39590.95, stdev=34430.89 lat (usec): min=36, max=294311, avg=39592.11, stdev=34430.94 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 60], 20.00th=[ 229], | 30.00th=[ 22414], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 43779], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[160433], 99.50th=[231736], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 443, per=25.37%, avg=214.13, stdev=99.42, samples=53 iops : min= 1, max= 27, avg=12.64, stdev= 6.25, samples=53 write: IOPS=14, BW=231KiB/s (236kB/s)(6544KiB/28347msec); 0 zone resets clat (usec): min=1328, max=442410, avg=33692.45, stdev=46191.19 lat (usec): min=1330, max=442411, avg=33698.47, stdev=46194.60 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1680], 10.00th=[ 2008], 20.00th=[ 3425], | 30.00th=[ 5932], 40.00th=[ 9110], 50.00th=[ 13960], 60.00th=[ 23200], | 70.00th=[ 39584], 80.00th=[ 61080], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[227541], 99.50th=[263193], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 31, max= 601, per=25.96%, avg=230.55, stdev=121.76, samples=56 iops : min= 1, max= 37, avg=13.66, stdev= 7.61, samples=56 lat (usec) : 50=1.56%, 100=7.29%, 250=0.65%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.08%, 4=6.90%, 10=10.81%, 20=9.90%, 50=29.56% lat (msec) : 100=22.79%, 250=4.43%, 500=0.52% cpu : usr=0.08%, sys=5.98%, ctx=1385, 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=144763: Thu Aug 27 09:11:03 2026 read: IOPS=14, BW=227KiB/s (232kB/s)(6256KiB/27595msec) clat (usec): min=35, max=217863, avg=37521.26, stdev=28971.22 lat (usec): min=35, max=217864, avg=37522.45, stdev=28971.22 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 9503], | 30.00th=[ 25035], 40.00th=[ 30278], 50.00th=[ 35914], 60.00th=[ 40633], | 70.00th=[ 47449], 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 82314], | 99.00th=[145753], 99.50th=[170918], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 93, max= 447, per=27.57%, avg=232.70, stdev=89.31, samples=53 iops : min= 5, max= 27, avg=13.81, stdev= 5.58, samples=53 write: IOPS=13, BW=219KiB/s (224kB/s)(6032KiB/27595msec); 0 zone resets clat (usec): min=1416, max=289837, avg=33804.32, stdev=40885.46 lat (usec): min=1418, max=289839, avg=33806.36, stdev=40885.47 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1680], 10.00th=[ 1991], 20.00th=[ 3884], | 30.00th=[ 6849], 40.00th=[ 10814], 50.00th=[ 16909], 60.00th=[ 27919], | 70.00th=[ 40633], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[105382], | 99.00th=[208667], 99.50th=[246416], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 446, per=24.43%, avg=216.98, stdev=96.03, samples=54 iops : min= 1, max= 27, avg=12.83, stdev= 6.04, samples=54 lat (usec) : 50=1.56%, 100=7.42%, 250=0.39%, 500=0.39% lat (msec) : 2=5.34%, 4=4.82%, 10=9.64%, 20=9.24%, 50=34.24% lat (msec) : 100=22.92%, 250=3.91%, 500=0.13% cpu : usr=0.07%, sys=5.86%, ctx=1363, 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=144764: Thu Aug 27 09:11:03 2026 read: IOPS=13, BW=220KiB/s (225kB/s)(6032KiB/27477msec) clat (usec): min=34, max=163049, avg=35763.51, stdev=30128.26 lat (usec): min=34, max=163050, avg=35764.60, stdev=30128.28 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 66], | 30.00th=[ 19792], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 60031], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[135267], 99.50th=[145753], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 31, max= 476, per=27.23%, avg=229.84, stdev=85.36, samples=51 iops : min= 1, max= 29, avg=13.65, stdev= 5.40, samples=51 write: IOPS=14, BW=228KiB/s (233kB/s)(6256KiB/27477msec); 0 zone resets clat (usec): min=1424, max=294004, avg=34731.36, stdev=41962.23 lat (usec): min=1426, max=294007, avg=34734.28, stdev=41962.98 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1729], 10.00th=[ 1975], 20.00th=[ 4146], | 30.00th=[ 6849], 40.00th=[ 10552], 50.00th=[ 16909], 60.00th=[ 30802], | 70.00th=[ 42730], 80.00th=[ 57934], 90.00th=[ 86508], 95.00th=[111674], | 99.00th=[189793], 99.50th=[233833], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 30, max= 442, per=25.60%, avg=227.31, stdev=97.68, samples=54 iops : min= 1, max= 27, avg=13.46, stdev= 6.18, samples=54 lat (usec) : 50=2.34%, 100=10.42%, 250=0.52%, 750=0.13%, 1000=0.26% lat (msec) : 2=5.47%, 4=4.69%, 10=10.03%, 20=7.42%, 50=31.25% lat (msec) : 100=22.79%, 250=4.56%, 500=0.13% cpu : usr=0.07%, sys=5.60%, ctx=1353, 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=845KiB/s (865kB/s), 203KiB/s-227KiB/s (207kB/s-232kB/s), io=23.4MiB (24.5MB), run=27438-28347msec WRITE: bw=889KiB/s (910kB/s), 219KiB/s-232KiB/s (224kB/s-238kB/s), io=24.6MiB (25.8MB), run=27438-28347msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144757: Thu Aug 27 09:11:49 2026 read: IOPS=4, BW=79.9KiB/s (81.8kB/s)(5920KiB/74110msec) clat (msec): min=7, max=282, avg=40.70, stdev=38.39 lat (msec): min=7, max=282, avg=40.71, stdev=38.39 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 37], 80.00th=[ 55], 90.00th=[ 83], 95.00th=[ 129], | 99.00th=[ 188], 99.50th=[ 224], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 29, max= 352, per=28.35%, avg=90.73, stdev=56.95, samples=128 iops : min= 1, max= 22, avg= 4.95, stdev= 3.65, samples=128 write: IOPS=5, BW=85.9KiB/s (87.0kB/s)(6368KiB/74110msec); 0 zone resets clat (msec): min=48, max=476, avg=147.42, stdev=63.78 lat (msec): min=48, max=476, avg=147.43, stdev=63.78 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 82], 20.00th=[ 95], | 30.00th=[ 107], 40.00th=[ 120], 50.00th=[ 130], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 201], 90.00th=[ 234], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 21, max= 189, per=25.58%, avg=86.22, stdev=37.24, samples=145 iops : min= 1, max= 11, avg= 4.66, stdev= 2.38, samples=145 lat (msec) : 10=1.17%, 20=12.89%, 50=24.22%, 100=19.01%, 250=38.93% lat (msec) : 500=3.78% cpu : usr=0.03%, sys=1.24%, ctx=1335, 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=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=144758: Thu Aug 27 09:11:49 2026 read: IOPS=4, BW=76.9KiB/s (78.7kB/s)(5744KiB/74702msec) clat (msec): min=7, max=266, avg=38.72, stdev=34.10 lat (msec): min=7, max=266, avg=38.72, stdev=34.10 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 53], 90.00th=[ 73], 95.00th=[ 100], | 99.00th=[ 203], 99.50th=[ 253], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 21, max= 414, per=28.24%, avg=90.38, stdev=59.30, samples=124 iops : min= 1, max= 25, avg= 4.93, stdev= 3.77, samples=124 write: IOPS=5, BW=87.6KiB/s (89.7kB/s)(6544KiB/74702msec); 0 zone resets clat (msec): min=50, max=676, avg=147.80, stdev=74.99 lat (msec): min=50, max=676, avg=147.82, stdev=74.98 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 71], 10.00th=[ 80], 20.00th=[ 92], | 30.00th=[ 104], 40.00th=[ 116], 50.00th=[ 129], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 190], 90.00th=[ 243], 95.00th=[ 288], | 99.00th=[ 397], 99.50th=[ 518], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 29, max= 160, per=26.40%, avg=88.97, stdev=37.52, samples=144 iops : min= 1, max= 10, avg= 4.83, stdev= 2.42, samples=144 lat (msec) : 10=0.78%, 20=12.63%, 50=23.31%, 100=22.27%, 250=35.94% lat (msec) : 500=4.69%, 750=0.39% cpu : usr=0.05%, sys=1.21%, ctx=1363, 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=144759: Thu Aug 27 09:11:49 2026 read: IOPS=5, BW=88.0KiB/s (90.1kB/s)(6256KiB/71071msec) clat (msec): min=8, max=357, avg=38.09, stdev=33.52 lat (msec): min=8, max=357, avg=38.10, stdev=33.55 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 39], 80.00th=[ 49], 90.00th=[ 74], 95.00th=[ 99], | 99.00th=[ 188], 99.50th=[ 190], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 29, max= 286, per=30.37%, avg=97.19, stdev=62.64, samples=127 iops : min= 1, max= 17, avg= 5.33, stdev= 3.98, samples=127 write: IOPS=5, BW=84.9KiB/s (86.9kB/s)(6032KiB/71071msec); 0 zone resets clat (msec): min=40, max=679, avg=148.74, stdev=73.56 lat (msec): min=40, max=679, avg=148.74, stdev=73.56 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 106], 40.00th=[ 122], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 236], 95.00th=[ 284], | 99.00th=[ 426], 99.50th=[ 477], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 30, max= 191, per=25.41%, avg=85.62, stdev=35.84, samples=138 iops : min= 1, max= 11, avg= 4.62, stdev= 2.31, samples=138 lat (msec) : 10=0.65%, 20=11.85%, 50=28.91%, 100=19.79%, 250=34.77% lat (msec) : 500=3.91%, 750=0.13% cpu : usr=0.05%, sys=1.33%, ctx=1386, 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=144760: Thu Aug 27 09:11:49 2026 read: IOPS=5, BW=81.4KiB/s (83.4kB/s)(6032KiB/74093msec) clat (msec): min=7, max=276, avg=41.40, stdev=39.89 lat (msec): min=7, max=276, avg=41.41, stdev=39.89 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 88], 95.00th=[ 127], | 99.00th=[ 226], 99.50th=[ 259], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 30, max= 320, per=29.27%, avg=93.65, stdev=57.99, samples=126 iops : min= 1, max= 20, avg= 5.13, stdev= 3.70, samples=126 write: IOPS=5, BW=84.4KiB/s (86.5kB/s)(6256KiB/74093msec); 0 zone resets clat (msec): min=36, max=569, avg=148.64, stdev=72.98 lat (msec): min=36, max=569, avg=148.64, stdev=72.98 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 104], 40.00th=[ 118], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 165], 80.00th=[ 199], 90.00th=[ 241], 95.00th=[ 288], | 99.00th=[ 405], 99.50th=[ 472], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 31, max= 191, per=25.70%, avg=86.62, stdev=38.91, samples=142 iops : min= 1, max= 11, avg= 4.68, stdev= 2.52, samples=142 lat (msec) : 10=0.65%, 20=12.76%, 50=25.78%, 100=20.57%, 250=35.42% lat (msec) : 500=4.69%, 750=0.13% cpu : usr=0.04%, sys=1.36%, ctx=1369, 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=321KiB/s (328kB/s), 76.9KiB/s-88.0KiB/s (78.7kB/s-90.1kB/s), io=23.4MiB (24.5MB), run=71071-74702msec WRITE: bw=337KiB/s (345kB/s), 84.4KiB/s-87.6KiB/s (86.5kB/s-89.7kB/s), io=24.6MiB (25.8MB), run=71071-74702msec 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=144781: Thu Aug 27 09:12:08 2026 read: IOPS=1, BW=1302KiB/s (1334kB/s)(7168KiB/5504msec) clat (msec): min=93, max=447, avg=225.24, stdev=126.89 lat (msec): min=93, max=447, avg=225.25, stdev=126.89 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 101], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 232], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 317], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 1777, max= 3744, per=77.22%, avg=2793.75, stdev=1058.34, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=930KiB/s (953kB/s)(5120KiB/5504msec); 0 zone resets clat (msec): min=346, max=1490, avg=744.11, stdev=444.96 lat (msec): min=346, max=1490, avg=744.20, stdev=444.95 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 1872, max= 2027, per=38.92%, avg=1971.50, stdev=69.67, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=2.62%, ctx=76, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144782: Thu Aug 27 09:12:08 2026 read: IOPS=0, BW=362KiB/s (371kB/s)(2048KiB/5660msec) clat (msec): min=118, max=138, avg=128.64, stdev=14.28 lat (msec): min=118, max=138, avg=128.65, stdev=14.29 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 140], 90.00th=[ 140], 95.00th=[ 140], | 99.00th=[ 140], 99.50th=[ 140], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 1787, max= 1976, per=52.00%, avg=1881.50, stdev=133.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1809KiB/s (1853kB/s)(10.0MiB/5660msec); 0 zone resets clat (msec): min=281, max=1362, avg=523.56, stdev=307.14 lat (msec): min=281, max=1362, avg=524.03, stdev=307.04 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 342], | 30.00th=[ 384], 40.00th=[ 393], 50.00th=[ 397], 60.00th=[ 510], | 70.00th=[ 514], 80.00th=[ 523], 90.00th=[ 531], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 1872, max= 3976, per=49.43%, avg=2503.43, stdev=907.19, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=16.67%, 500=41.67%, 750=33.33%, 2000=8.33% cpu : usr=0.00%, sys=3.25%, ctx=91, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144783: Thu Aug 27 09:12:08 2026 read: IOPS=1, BW=1101KiB/s (1128kB/s)(6144KiB/5578msec) clat (msec): min=168, max=683, avg=362.71, stdev=188.28 lat (msec): min=168, max=683, avg=362.71, stdev=188.28 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 305], | 70.00th=[ 481], 80.00th=[ 481], 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= 1984, max= 2027, per=55.40%, avg=2004.20, stdev=17.91, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1101KiB/s (1128kB/s)(6144KiB/5578msec); 0 zone resets clat (msec): min=191, max=1405, avg=547.53, stdev=440.23 lat (msec): min=191, max=1406, avg=547.80, stdev=440.66 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 468], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1774, max= 2027, per=38.00%, avg=1924.60, stdev=113.25, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.66%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144785: Thu Aug 27 09:12:08 2026 read: IOPS=1, BW=1130KiB/s (1158kB/s)(5120KiB/4529msec) clat (msec): min=119, max=492, avg=290.12, stdev=168.56 lat (msec): min=119, max=492, avg=290.13, stdev=168.56 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 201], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1872, max= 4055, per=73.36%, avg=2654.00, stdev=1216.04, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1583KiB/s (1621kB/s)(7168KiB/4529msec); 0 zone resets clat (msec): min=199, max=837, avg=434.92, stdev=203.87 lat (msec): min=199, max=837, avg=435.31, stdev=203.73 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 376], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 518], 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= 1809, max= 3670, per=43.84%, avg=2220.33, stdev=714.34, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=2.76%, ctx=58, 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=3618KiB/s (3705kB/s), 362KiB/s-1302KiB/s (371kB/s-1334kB/s), io=20.0MiB (20.0MB), run=4529-5660msec WRITE: bw=5066KiB/s (5187kB/s), 930KiB/s-1809KiB/s (953kB/s-1853kB/s), io=28.0MiB (29.4MB), run=4529-5660msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144786: Thu Aug 27 09:12:08 2026 read: IOPS=1, BW=1201KiB/s (1230kB/s)(7168KiB/5967msec) clat (msec): min=2, max=737, avg=343.19, stdev=224.01 lat (msec): min=2, max=737, avg=343.19, stdev=224.01 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 292], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 477], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1954, max= 3893, per=72.73%, avg=2376.20, stdev=848.41, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=858KiB/s (879kB/s)(5120KiB/5967msec); 0 zone resets clat (msec): min=124, max=1215, avg=631.12, stdev=459.76 lat (msec): min=124, max=1215, avg=631.22, stdev=459.76 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1670, max= 4047, per=52.75%, avg=2412.75, stdev=1098.59, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 4=8.33%, 250=8.33%, 500=50.00%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.48%, ctx=185, 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=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=144787: Thu Aug 27 09:12:08 2026 read: IOPS=0, BW=327KiB/s (335kB/s)(2048KiB/6268msec) clat (usec): min=1788, max=265541, avg=133665.43, stdev=186501.62 lat (usec): min=1789, max=265545, avg=133667.51, stdev=186503.54 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 1795], 10.00th=[ 1795], 20.00th=[ 1795], | 30.00th=[ 1795], 40.00th=[ 1795], 50.00th=[ 1795], 60.00th=[265290], | 70.00th=[265290], 80.00th=[265290], 90.00th=[265290], 95.00th=[265290], | 99.00th=[265290], 99.50th=[265290], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 1892, max= 2023, per=59.92%, avg=1957.50, stdev=92.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1634KiB/s (1673kB/s)(10.0MiB/6268msec); 0 zone resets clat (msec): min=195, max=1145, avg=576.15, stdev=301.85 lat (msec): min=195, max=1145, avg=576.79, stdev=301.97 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 199], | 30.00th=[ 321], 40.00th=[ 393], 50.00th=[ 609], 60.00th=[ 634], | 70.00th=[ 718], 80.00th=[ 726], 90.00th=[ 827], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1670, max= 4071, per=48.30%, avg=2209.25, stdev=760.95, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 2=8.33%, 250=16.67%, 500=25.00%, 750=33.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.04%, ctx=160, 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=144788: Thu Aug 27 09:12:08 2026 read: IOPS=1, BW=1038KiB/s (1063kB/s)(6144KiB/5917msec) clat (usec): min=494, max=635249, avg=331033.39, stdev=210419.14 lat (usec): min=495, max=635251, avg=331034.55, stdev=210419.19 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[223347], | 30.00th=[223347], 40.00th=[350225], 50.00th=[350225], 60.00th=[362808], | 70.00th=[413139], 80.00th=[413139], 90.00th=[633340], 95.00th=[633340], | 99.00th=[633340], 99.50th=[633340], 99.90th=[633340], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 1670, max= 2035, per=59.29%, avg=1937.00, stdev=153.17, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1038KiB/s (1063kB/s)(6144KiB/5917msec); 0 zone resets clat (msec): min=290, max=1601, avg=601.28, stdev=502.42 lat (msec): min=290, max=1602, avg=601.48, stdev=502.35 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 489], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 1988, max= 3992, per=62.11%, avg=2840.75, stdev=989.65, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=8.33%, 500=58.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=9.16%, ctx=182, 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=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=144789: Thu Aug 27 09:12:08 2026 read: IOPS=1, BW=1195KiB/s (1223kB/s)(5120KiB/4286msec) clat (msec): min=107, max=439, avg=276.27, stdev=126.13 lat (msec): min=107, max=439, avg=276.27, stdev=126.13 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 108], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 330], 80.00th=[ 330], 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= 2003, max= 3893, per=81.00%, avg=2646.33, stdev=1079.83, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1672KiB/s (1713kB/s)(7168KiB/4286msec); 0 zone resets clat (msec): min=327, max=467, avg=404.74, stdev=60.08 lat (msec): min=328, max=467, avg=404.84, stdev=60.10 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 435], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 460], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1868, max= 2023, per=43.11%, avg=1972.00, stdev=55.74, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=16.67%, 500=83.33% cpu : usr=0.00%, sys=9.45%, ctx=132, 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=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=3267KiB/s (3346kB/s), 327KiB/s-1201KiB/s (335kB/s-1230kB/s), io=20.0MiB (20.0MB), run=4286-6268msec WRITE: bw=4574KiB/s (4684kB/s), 858KiB/s-1672KiB/s (879kB/s-1713kB/s), io=28.0MiB (29.4MB), run=4286-6268msec 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=144795: Thu Aug 27 09:12:24 2026 read: IOPS=0, BW=3811KiB/s (3903kB/s)(12.0MiB/3224msec) clat (msec): min=1006, max=1072, avg=1039.47, stdev=32.92 lat (msec): min=1006, max=1072, avg=1039.48, stdev=32.92 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7728, max= 8047, per=100.00%, avg=7887.50, stdev=225.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.19%, sys=13.93%, ctx=240, 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=144796: Thu Aug 27 09:12:24 2026 read: IOPS=0, BW=1158KiB/s (1186kB/s)(4096KiB/3538msec) clat (nsec): min=1793.0M, max=1793.0M, avg=1793960148.00, stdev= 0.00 lat (nsec): min=1793.0M, max=1793.0M, avg=1793961230.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1787], 5.00th=[ 1787], 10.00th=[ 1787], 20.00th=[ 1787], | 30.00th=[ 1787], 40.00th=[ 1787], 50.00th=[ 1787], 60.00th=[ 1787], | 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= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2315KiB/s (2371kB/s)(8192KiB/3538msec); 0 zone resets clat (msec): min=512, max=1062, avg=787.50, stdev=388.47 lat (msec): min=518, max=1062, avg=790.56, stdev=384.58 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 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= 7728, max= 7728, per=95.36%, avg=7728.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.03%, sys=7.74%, ctx=129, 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=144797: Thu Aug 27 09:12:24 2026 write: IOPS=0, BW=3039KiB/s (3112kB/s)(12.0MiB/4043msec); 0 zone resets clat (msec): min=1077, max=1542, avg=1291.49, stdev=234.76 lat (msec): min=1078, max=1543, avg=1291.89, stdev=234.82 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7728, max= 8047, per=97.33%, avg=7887.50, stdev=225.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.05%, sys=4.95%, ctx=104, 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=144798: Thu Aug 27 09:12:24 2026 write: IOPS=0, BW=3672KiB/s (3761kB/s)(12.0MiB/3346msec); 0 zone resets clat (msec): min=430, max=2115, avg=1080.19, stdev=906.65 lat (msec): min=431, max=2116, avg=1082.56, stdev=905.24 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7049, max= 8047, per=93.14%, avg=7548.00, stdev=705.69, 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=0.03%, sys=4.42%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4631KiB/s (4742kB/s), 1158KiB/s-3811KiB/s (1186kB/s-3903kB/s), io=16.0MiB (16.8MB), run=3224-3538msec WRITE: bw=8105KiB/s (8299kB/s), 2315KiB/s-3672KiB/s (2371kB/s-3761kB/s), io=32.0MiB (33.6MB), run=3346-4043msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144800: Thu Aug 27 09:12:25 2026 read: IOPS=0, BW=3320KiB/s (3400kB/s)(12.0MiB/3701msec) clat (msec): min=460, max=1717, avg=1225.20, stdev=670.96 lat (msec): min=460, max=1717, avg=1225.20, stdev=670.96 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 1502], 50.00th=[ 1502], 60.00th=[ 1502], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7876, max= 8094, per=100.00%, avg=7985.00, stdev=154.15, 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=2.43%, ctx=62, 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=144801: Thu Aug 27 09:12:25 2026 read: IOPS=0, BW=1084KiB/s (1110kB/s)(4096KiB/3780msec) clat (nsec): min=1124.9M, max=1124.9M, avg=1124928811.00, stdev= 0.00 lat (nsec): min=1124.9M, max=1124.9M, avg=1124930800.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2167KiB/s (2219kB/s)(8192KiB/3780msec); 0 zone resets clat (msec): min=1277, max=1363, avg=1320.50, stdev=61.27 lat (msec): min=1279, max=1364, avg=1322.00, stdev=59.61 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1368], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8094, max= 8094, per=93.38%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=4.10%, ctx=61, 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=144802: Thu Aug 27 09:12:25 2026 write: IOPS=0, BW=3569KiB/s (3655kB/s)(12.0MiB/3443msec); 0 zone resets clat (msec): min=465, max=1524, avg=1120.05, stdev=571.84 lat (msec): min=466, max=1525, avg=1120.36, stdev=571.93 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8047, max= 8126, per=93.29%, avg=8086.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.45%, ctx=55, 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=144803: Thu Aug 27 09:12:25 2026 write: IOPS=1, BW=4419KiB/s (4525kB/s)(12.0MiB/2781msec); 0 zone resets clat (msec): min=510, max=1373, avg=926.29, stdev=432.17 lat (msec): min=510, max=1373, avg=926.63, stdev=432.24 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7249, max= 8094, per=88.50%, avg=7671.50, stdev=597.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.38%, ctx=43, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4334KiB/s (4438kB/s), 1084KiB/s-3320KiB/s (1110kB/s-3400kB/s), io=16.0MiB (16.8MB), run=3701-3780msec WRITE: bw=8669KiB/s (8877kB/s), 2167KiB/s-4419KiB/s (2219kB/s-4525kB/s), io=32.0MiB (33.6MB), run=2781-3780msec