== sanity test 398b: DIO and buffer IO race ============== 08:50:35 (1789303835) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.61475 s, 6.6 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=179317: Sun Sep 13 08:53:13 2026 read: IOPS=11, BW=44.1KiB/s (45.1kB/s)(5992KiB/135998msec) clat (usec): min=46, max=291218, avg=49620.97, stdev=31975.34 lat (usec): min=48, max=291221, avg=49624.50, stdev=31976.61 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 12518], 10.00th=[ 17957], 20.00th=[ 24511], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[106431], | 99.00th=[149947], 99.50th=[179307], 99.90th=[242222], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 112, per=25.03%, avg=44.05, stdev=17.67, samples=265 iops : min= 1, max= 28, avg=10.37, stdev= 4.45, samples=265 write: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6296KiB/135998msec); 0 zone resets clat (usec): min=836, max=1149.6k, avg=38779.45, stdev=47433.95 lat (usec): min=837, max=1149.6k, avg=38797.61, stdev=47441.89 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 1827], | 20.00th=[ 4228], 30.00th=[ 8586], 40.00th=[ 17695], | 50.00th=[ 27395], 60.00th=[ 37487], 70.00th=[ 50594], | 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[ 112722], | 99.00th=[ 164627], 99.50th=[ 181404], 99.90th=[ 223347], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 7, max= 118, per=25.14%, avg=46.26, stdev=21.07, samples=265 iops : min= 1, max= 29, avg=10.94, stdev= 5.32, samples=265 lat (usec) : 50=0.10%, 100=1.53%, 250=0.16%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.66%, 4=4.20%, 10=6.90%, 20=8.82%, 50=36.78% lat (msec) : 100=28.13%, 250=7.39%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=5.17%, ctx=6674, 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=179319: Sun Sep 13 08:53:13 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(5940KiB/135875msec) clat (usec): min=40, max=331901, avg=50132.86, stdev=32409.98 lat (usec): min=40, max=331903, avg=50142.95, stdev=32407.31 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 12125], 10.00th=[ 19268], 20.00th=[ 25560], | 30.00th=[ 31851], 40.00th=[ 38011], 50.00th=[ 44303], 60.00th=[ 50594], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[108528], | 99.00th=[160433], 99.50th=[189793], 99.90th=[308282], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 6, max= 104, per=24.76%, avg=43.57, stdev=18.06, samples=266 iops : min= 1, max= 26, avg=10.26, stdev= 4.55, samples=266 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6348KiB/135875msec); 0 zone resets clat (usec): min=853, max=1176.1k, avg=38313.46, stdev=47928.48 lat (usec): min=855, max=1176.1k, avg=38318.05, stdev=47928.17 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1369], 10.00th=[ 1860], | 20.00th=[ 4228], 30.00th=[ 8717], 40.00th=[ 16450], | 50.00th=[ 26346], 60.00th=[ 39060], 70.00th=[ 49021], | 80.00th=[ 64750], 90.00th=[ 91751], 95.00th=[ 113771], | 99.00th=[ 162530], 99.50th=[ 191890], 99.90th=[ 325059], | 99.95th=[1182794], 99.99th=[1182794] bw ( KiB/s): min= 7, max= 133, per=25.42%, avg=46.77, stdev=21.79, samples=265 iops : min= 1, max= 33, avg=11.06, stdev= 5.49, samples=265 lat (usec) : 50=0.07%, 100=1.33%, 250=0.29%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.57%, 4=4.33%, 10=6.74%, 20=9.34%, 50=37.27% lat (msec) : 100=27.31%, 250=7.29%, 500=0.16%, 2000=0.03% cpu : usr=0.10%, sys=5.21%, ctx=6621, 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=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=179320: Sun Sep 13 08:53:13 2026 read: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6028KiB/134427msec) clat (usec): min=48, max=279844, avg=49194.25, stdev=32494.06 lat (usec): min=49, max=279845, avg=49217.17, stdev=32505.60 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 8717], 10.00th=[ 17695], 20.00th=[ 24249], | 30.00th=[ 30278], 40.00th=[ 36963], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[164627], 99.50th=[187696], 99.90th=[246416], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 111, per=25.39%, avg=44.69, stdev=18.41, samples=263 iops : min= 1, max= 27, avg=10.53, stdev= 4.64, samples=263 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(6260KiB/134427msec); 0 zone resets clat (usec): min=784, max=1202.9k, avg=38151.07, stdev=48529.43 lat (usec): min=785, max=1202.9k, avg=38155.21, stdev=48528.42 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 1663], | 20.00th=[ 4359], 30.00th=[ 8717], 40.00th=[ 18482], | 50.00th=[ 27919], 60.00th=[ 37487], 70.00th=[ 49546], | 80.00th=[ 63701], 90.00th=[ 89654], 95.00th=[ 105382], | 99.00th=[ 170918], 99.50th=[ 208667], 99.90th=[ 346031], | 99.95th=[1199571], 99.99th=[1199571] bw ( KiB/s): min= 7, max= 119, per=25.20%, avg=46.37, stdev=19.24, samples=263 iops : min= 1, max= 29, avg=10.95, stdev= 4.84, samples=263 lat (usec) : 50=0.03%, 100=1.95%, 250=0.26%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.96%, 4=3.78%, 10=6.48%, 20=8.72%, 50=37.40% lat (msec) : 100=28.61%, 250=6.41%, 500=0.16%, 2000=0.03% cpu : usr=0.09%, sys=5.05%, ctx=6452, 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=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=179322: Sun Sep 13 08:53:13 2026 read: IOPS=11, BW=44.6KiB/s (45.6kB/s)(6052KiB/135801msec) clat (usec): min=39, max=1225.3k, avg=49680.72, stdev=43630.57 lat (usec): min=39, max=1225.3k, avg=49682.64, stdev=43630.53 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 11863], 10.00th=[ 18220], | 20.00th=[ 24511], 30.00th=[ 30278], 40.00th=[ 35914], | 50.00th=[ 42206], 60.00th=[ 49546], 70.00th=[ 58983], | 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[ 106431], | 99.00th=[ 147850], 99.50th=[ 173016], 99.90th=[ 304088], | 99.95th=[1233126], 99.99th=[1233126] bw ( KiB/s): min= 7, max= 95, per=25.36%, avg=44.63, stdev=17.34, samples=264 iops : min= 1, max= 23, avg=10.51, stdev= 4.37, samples=264 write: IOPS=11, BW=45.9KiB/s (47.0kB/s)(6236KiB/135801msec); 0 zone resets clat (usec): min=905, max=338043, avg=38526.54, stdev=40151.66 lat (usec): min=906, max=338045, avg=38531.29, stdev=40150.30 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1369], 10.00th=[ 1958], 20.00th=[ 4686], | 30.00th=[ 9372], 40.00th=[ 17957], 50.00th=[ 28181], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 66323], 90.00th=[ 91751], 95.00th=[114820], | 99.00th=[168821], 99.50th=[219153], 99.90th=[299893], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 7, max= 135, per=24.86%, avg=45.75, stdev=21.07, samples=265 iops : min= 1, max= 33, avg=10.80, stdev= 5.29, samples=265 lat (usec) : 50=0.03%, 100=1.60%, 250=0.13%, 750=0.07%, 1000=0.10% lat (msec) : 2=5.24%, 4=3.91%, 10=6.97%, 20=9.51%, 50=37.89% lat (msec) : 100=27.25%, 250=7.13%, 500=0.16%, 2000=0.03% cpu : usr=0.09%, sys=5.14%, ctx=6694, 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=177KiB/s (181kB/s), 43.7KiB/s-44.8KiB/s (44.8kB/s-45.9kB/s), io=23.4MiB (24.6MB), run=134427-135998msec WRITE: bw=185KiB/s (189kB/s), 45.9KiB/s-46.7KiB/s (47.0kB/s-47.8kB/s), io=24.6MiB (25.7MB), run=134427-135998msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179318: Sun Sep 13 08:54:02 2026 read: IOPS=8, BW=32.6KiB/s (33.4kB/s)(5992KiB/183793msec) clat (msec): min=7, max=1240, avg=49.38, stdev=52.26 lat (msec): min=7, max=1240, avg=49.38, stdev=52.26 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 70], 90.00th=[ 103], 95.00th=[ 136], | 99.00th=[ 213], 99.50th=[ 247], 99.90th=[ 342], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 119, per=25.56%, avg=32.97, stdev=20.67, samples=353 iops : min= 1, max= 29, avg= 7.56, stdev= 5.19, samples=353 write: IOPS=8, BW=34.3KiB/s (35.1kB/s)(6296KiB/183793msec); 0 zone resets clat (msec): min=13, max=416, avg=69.45, stdev=46.40 lat (msec): min=13, max=416, avg=69.46, stdev=46.40 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 79], 80.00th=[ 99], 90.00th=[ 129], 95.00th=[ 161], | 99.00th=[ 234], 99.50th=[ 284], 99.90th=[ 351], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7, max= 111, per=24.95%, avg=33.94, stdev=19.83, samples=360 iops : min= 1, max= 27, avg= 7.81, stdev= 4.98, samples=360 lat (msec) : 10=0.75%, 20=10.68%, 50=44.27%, 100=29.52%, 250=14.23% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.06%, sys=1.73%, ctx=4783, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179321: Sun Sep 13 08:54:02 2026 read: IOPS=8, BW=32.4KiB/s (33.2kB/s)(5940KiB/183177msec) clat (msec): min=6, max=1342, avg=48.24, stdev=54.00 lat (msec): min=6, max=1342, avg=48.24, stdev=54.00 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 65], 90.00th=[ 100], 95.00th=[ 134], | 99.00th=[ 205], 99.50th=[ 257], 99.90th=[ 359], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 127, per=25.49%, avg=32.88, stdev=21.77, samples=350 iops : min= 1, max= 31, avg= 7.54, stdev= 5.46, samples=350 write: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6348KiB/183177msec); 0 zone resets clat (msec): min=10, max=411, avg=69.97, stdev=45.18 lat (msec): min=10, max=411, avg=69.98, stdev=45.18 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 66], | 70.00th=[ 82], 80.00th=[ 101], 90.00th=[ 132], 95.00th=[ 161], | 99.00th=[ 211], 99.50th=[ 264], 99.90th=[ 338], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 111, per=25.31%, avg=34.42, stdev=19.24, samples=357 iops : min= 1, max= 27, avg= 7.92, stdev= 4.82, samples=357 lat (msec) : 10=1.11%, 20=10.61%, 50=44.43%, 100=28.61%, 250=14.65% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.08%, sys=1.72%, ctx=4736, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179323: Sun Sep 13 08:54:02 2026 read: IOPS=8, BW=32.6KiB/s (33.4kB/s)(6028KiB/184733msec) clat (msec): min=5, max=354, avg=48.49, stdev=42.24 lat (msec): min=5, max=354, avg=48.51, stdev=42.25 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 68], 90.00th=[ 107], 95.00th=[ 140], | 99.00th=[ 207], 99.50th=[ 239], 99.90th=[ 296], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7, max= 126, per=25.70%, avg=33.16, stdev=21.34, samples=350 iops : min= 1, max= 31, avg= 7.61, stdev= 5.36, samples=350 write: IOPS=8, BW=33.9KiB/s (34.7kB/s)(6260KiB/184733msec); 0 zone resets clat (msec): min=11, max=1377, avg=71.00, stdev=58.14 lat (msec): min=11, max=1377, avg=71.00, stdev=58.15 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 81], 80.00th=[ 101], 90.00th=[ 133], 95.00th=[ 165], | 99.00th=[ 234], 99.50th=[ 300], 99.90th=[ 405], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 109, per=24.79%, avg=33.71, stdev=19.93, samples=357 iops : min= 1, max= 27, avg= 7.75, stdev= 5.01, samples=357 lat (msec) : 10=1.73%, 20=10.74%, 50=43.59%, 100=27.93%, 250=15.49% lat (msec) : 500=0.49%, 2000=0.03% cpu : usr=0.07%, sys=1.78%, ctx=4793, 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=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=179324: Sun Sep 13 08:54:02 2026 read: IOPS=8, BW=33.1KiB/s (33.9kB/s)(6052KiB/182918msec) clat (msec): min=6, max=365, avg=47.92, stdev=40.77 lat (msec): min=6, max=365, avg=47.93, stdev=40.77 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 72], 90.00th=[ 105], 95.00th=[ 131], | 99.00th=[ 190], 99.50th=[ 211], 99.90th=[ 292], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 116, per=26.31%, avg=33.95, stdev=21.13, samples=346 iops : min= 1, max= 29, avg= 7.81, stdev= 5.32, samples=346 write: IOPS=8, BW=34.1KiB/s (34.9kB/s)(6236KiB/182918msec); 0 zone resets clat (msec): min=10, max=1370, avg=70.49, stdev=57.27 lat (msec): min=10, max=1370, avg=70.50, stdev=57.27 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 67], | 70.00th=[ 80], 80.00th=[ 97], 90.00th=[ 128], 95.00th=[ 161], | 99.00th=[ 234], 99.50th=[ 313], 99.90th=[ 418], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 103, per=24.99%, avg=33.98, stdev=19.62, samples=356 iops : min= 1, max= 25, avg= 7.81, stdev= 4.92, samples=356 lat (msec) : 10=1.24%, 20=10.90%, 50=43.91%, 100=28.81%, 250=14.58% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.07%, sys=1.71%, ctx=4696, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=130KiB/s (133kB/s), 32.4KiB/s-33.1KiB/s (33.2kB/s-33.9kB/s), io=23.4MiB (24.6MB), run=182918-184733msec WRITE: bw=136KiB/s (139kB/s), 33.9KiB/s-34.7KiB/s (34.7kB/s-35.5kB/s), io=24.6MiB (25.7MB), run=182918-184733msec 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=179368: Sun Sep 13 08:54:55 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(5920KiB/37439msec) clat (usec): min=37, max=256772, avg=52800.94, stdev=35687.85 lat (usec): min=38, max=256773, avg=52802.46, stdev=35687.92 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 63], 10.00th=[ 143], 20.00th=[ 26608], | 30.00th=[ 35390], 40.00th=[ 42206], 50.00th=[ 47973], 60.00th=[ 53740], | 70.00th=[ 62653], 80.00th=[ 76022], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[164627], 99.50th=[219153], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 382, per=26.43%, avg=157.81, stdev=65.56, samples=73 iops : min= 1, max= 23, avg= 9.12, stdev= 4.11, samples=73 write: IOPS=10, BW=170KiB/s (174kB/s)(6368KiB/37439msec); 0 zone resets clat (usec): min=1523, max=246726, avg=44092.88, stdev=45669.63 lat (usec): min=1525, max=246727, avg=44104.95, stdev=45667.01 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2057], 10.00th=[ 3228], 20.00th=[ 6587], | 30.00th=[ 11600], 40.00th=[ 20317], 50.00th=[ 29230], 60.00th=[ 41157], | 70.00th=[ 54264], 80.00th=[ 77071], 90.00th=[108528], 95.00th=[143655], | 99.00th=[221250], 99.50th=[235930], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 21, max= 347, per=27.17%, avg=170.66, stdev=67.52, samples=73 iops : min= 1, max= 21, avg= 9.93, stdev= 4.26, samples=73 lat (usec) : 50=0.78%, 100=3.52%, 250=0.52%, 1000=0.26% lat (msec) : 2=2.34%, 4=3.78%, 10=8.07%, 20=7.42%, 50=33.07% lat (msec) : 100=30.08%, 250=10.03%, 500=0.13% cpu : usr=0.07%, sys=5.14%, ctx=1605, 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=179370: Sun Sep 13 08:54:55 2026 read: IOPS=8, BW=143KiB/s (147kB/s)(5744KiB/40100msec) clat (usec): min=53, max=259024, avg=59858.59, stdev=41705.29 lat (usec): min=54, max=259026, avg=59860.24, stdev=41705.19 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 72], 10.00th=[ 21103], 20.00th=[ 32375], | 30.00th=[ 38536], 40.00th=[ 44303], 50.00th=[ 51119], 60.00th=[ 60556], | 70.00th=[ 70779], 80.00th=[ 83362], 90.00th=[108528], 95.00th=[137364], | 99.00th=[231736], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 256, per=24.23%, avg=144.62, stdev=57.93, samples=77 iops : min= 1, max= 16, avg= 8.29, stdev= 3.71, samples=77 write: IOPS=10, BW=163KiB/s (167kB/s)(6544KiB/40100msec); 0 zone resets clat (usec): min=1580, max=259335, avg=45196.75, stdev=43868.67 lat (usec): min=1583, max=259338, avg=45202.66, stdev=43865.78 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2474], 10.00th=[ 4490], 20.00th=[ 8717], | 30.00th=[ 15795], 40.00th=[ 23987], 50.00th=[ 31851], 60.00th=[ 42206], | 70.00th=[ 56886], 80.00th=[ 78119], 90.00th=[104334], 95.00th=[127402], | 99.00th=[210764], 99.50th=[233833], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 475, per=25.90%, avg=162.63, stdev=82.23, samples=78 iops : min= 1, max= 29, avg= 9.44, stdev= 5.17, samples=78 lat (usec) : 100=2.73%, 250=1.04%, 750=0.13% lat (msec) : 2=1.82%, 4=2.73%, 10=7.68%, 20=7.16%, 50=34.77% lat (msec) : 100=30.08%, 250=11.33%, 500=0.52% cpu : usr=0.05%, sys=5.01%, ctx=1734, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179371: Sun Sep 13 08:54:55 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(6256KiB/39904msec) clat (usec): min=57, max=245438, avg=58573.02, stdev=36453.01 lat (usec): min=58, max=245439, avg=58574.49, stdev=36452.99 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 237], 10.00th=[ 24773], 20.00th=[ 32637], | 30.00th=[ 38536], 40.00th=[ 44303], 50.00th=[ 51119], 60.00th=[ 60031], | 70.00th=[ 68682], 80.00th=[ 81265], 90.00th=[102237], 95.00th=[126354], | 99.00th=[200279], 99.50th=[227541], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 319, per=26.33%, avg=157.21, stdev=57.20, samples=78 iops : min= 1, max= 19, avg= 9.10, stdev= 3.64, samples=78 write: IOPS=9, BW=151KiB/s (155kB/s)(6032KiB/39904msec); 0 zone resets clat (usec): min=1506, max=270853, avg=43999.16, stdev=43104.62 lat (usec): min=1510, max=270855, avg=44006.10, stdev=43101.23 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2114], 10.00th=[ 4113], 20.00th=[ 8848], | 30.00th=[ 13960], 40.00th=[ 22152], 50.00th=[ 31589], 60.00th=[ 40109], | 70.00th=[ 55313], 80.00th=[ 69731], 90.00th=[103285], 95.00th=[131597], | 99.00th=[187696], 99.50th=[208667], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 316, per=24.32%, avg=152.74, stdev=66.52, samples=77 iops : min= 1, max= 19, avg= 8.79, stdev= 4.23, samples=77 lat (usec) : 100=2.21%, 250=0.39% lat (msec) : 2=2.21%, 4=2.73%, 10=7.42%, 20=6.38%, 50=35.81% lat (msec) : 100=32.16%, 250=10.55%, 500=0.13% cpu : usr=0.05%, sys=4.66%, ctx=1711, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179373: Sun Sep 13 08:54:55 2026 read: IOPS=9, BW=155KiB/s (158kB/s)(6032KiB/39026msec) clat (usec): min=53, max=314310, avg=57676.50, stdev=41875.81 lat (usec): min=53, max=314322, avg=57678.39, stdev=41875.98 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 70], 10.00th=[ 1020], 20.00th=[ 27919], | 30.00th=[ 36439], 40.00th=[ 44303], 50.00th=[ 51643], 60.00th=[ 58983], | 70.00th=[ 68682], 80.00th=[ 81265], 90.00th=[108528], 95.00th=[132645], | 99.00th=[225444], 99.50th=[250610], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 317, per=26.12%, avg=155.95, stdev=65.20, samples=75 iops : min= 1, max= 19, avg= 9.01, stdev= 4.08, samples=75 write: IOPS=10, BW=160KiB/s (164kB/s)(6256KiB/39026msec); 0 zone resets clat (usec): min=1238, max=243795, avg=43273.56, stdev=48337.41 lat (usec): min=1240, max=243797, avg=43280.86, stdev=48334.51 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1909], 10.00th=[ 3720], 20.00th=[ 6521], | 30.00th=[ 10028], 40.00th=[ 15270], 50.00th=[ 24773], 60.00th=[ 39060], | 70.00th=[ 50070], 80.00th=[ 77071], 90.00th=[110625], 95.00th=[158335], | 99.00th=[210764], 99.50th=[227541], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 31, max= 415, per=25.63%, avg=160.96, stdev=79.49, samples=76 iops : min= 1, max= 25, avg= 9.33, stdev= 5.06, samples=76 lat (usec) : 100=4.30%, 250=0.39%, 500=0.13% lat (msec) : 2=2.86%, 4=3.12%, 10=9.51%, 20=9.24%, 50=29.04% lat (msec) : 100=28.91%, 250=12.37%, 500=0.13% cpu : usr=0.06%, sys=4.78%, ctx=1653, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=597KiB/s (612kB/s), 143KiB/s-158KiB/s (147kB/s-162kB/s), io=23.4MiB (24.5MB), run=37439-40100msec WRITE: bw=628KiB/s (644kB/s), 151KiB/s-170KiB/s (155kB/s-174kB/s), io=24.6MiB (25.8MB), run=37439-40100msec fio: pid=179372, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=179366: Sun Sep 13 08:55:09 2026 read: IOPS=6, BW=109KiB/s (112kB/s)(5920KiB/54198msec) clat (msec): min=7, max=259, avg=54.41, stdev=46.80 lat (msec): min=7, max=259, avg=54.42, stdev=46.80 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 46], | 70.00th=[ 58], 80.00th=[ 85], 90.00th=[ 120], 95.00th=[ 155], | 99.00th=[ 224], 99.50th=[ 251], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 350, per=27.62%, avg=111.84, stdev=75.03, samples=101 iops : min= 1, max= 21, avg= 6.17, stdev= 4.74, samples=101 write: IOPS=7, BW=117KiB/s (120kB/s)(6368KiB/54198msec); 0 zone resets clat (msec): min=16, max=474, avg=84.47, stdev=60.56 lat (msec): min=16, max=474, avg=84.47, stdev=60.56 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 32], 20.00th=[ 40], | 30.00th=[ 47], 40.00th=[ 55], 50.00th=[ 66], 60.00th=[ 78], | 70.00th=[ 95], 80.00th=[ 126], 90.00th=[ 169], 95.00th=[ 220], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 30, max= 348, per=28.32%, avg=120.63, stdev=71.14, samples=102 iops : min= 1, max= 21, avg= 6.72, stdev= 4.51, samples=102 lat (msec) : 10=0.13%, 20=8.46%, 50=40.36%, 100=28.78%, 250=20.96% lat (msec) : 500=1.30% cpu : usr=0.05%, sys=1.43%, ctx=1242, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179367: Sun Sep 13 08:55:09 2026 read: IOPS=6, BW=106KiB/s (109kB/s)(5744KiB/54113msec) clat (msec): min=8, max=255, avg=55.75, stdev=47.67 lat (msec): min=8, max=255, avg=55.76, stdev=47.69 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 63], 80.00th=[ 86], 90.00th=[ 126], 95.00th=[ 153], | 99.00th=[ 226], 99.50th=[ 253], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 31, max= 378, per=27.42%, avg=111.07, stdev=68.86, samples=100 iops : min= 1, max= 23, avg= 6.13, stdev= 4.36, samples=100 write: IOPS=7, BW=121KiB/s (124kB/s)(6544KiB/54113msec); 0 zone resets clat (msec): min=17, max=451, avg=83.12, stdev=60.84 lat (msec): min=17, max=451, avg=83.13, stdev=60.84 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 54], 50.00th=[ 66], 60.00th=[ 75], | 70.00th=[ 94], 80.00th=[ 122], 90.00th=[ 167], 95.00th=[ 207], | 99.00th=[ 275], 99.50th=[ 321], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 31, max= 383, per=29.17%, avg=124.25, stdev=75.17, samples=102 iops : min= 1, max= 23, avg= 6.95, stdev= 4.74, samples=102 lat (msec) : 10=0.65%, 20=7.42%, 50=41.02%, 100=28.91%, 250=20.83% lat (msec) : 500=1.17% cpu : usr=0.04%, sys=1.39%, ctx=1185, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179369: Sun Sep 13 08:55:09 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(6256KiB/53573msec) clat (msec): min=6, max=253, avg=53.68, stdev=45.64 lat (msec): min=6, max=253, avg=53.68, stdev=45.64 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 46], | 70.00th=[ 57], 80.00th=[ 79], 90.00th=[ 122], 95.00th=[ 159], | 99.00th=[ 222], 99.50th=[ 251], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 30, max= 415, per=30.66%, avg=124.19, stdev=83.88, samples=99 iops : min= 1, max= 25, avg= 6.94, stdev= 5.32, samples=99 write: IOPS=7, BW=113KiB/s (115kB/s)(6032KiB/53573msec); 0 zone resets clat (msec): min=16, max=370, avg=85.42, stdev=58.20 lat (msec): min=16, max=370, avg=85.42, stdev=58.20 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 41], | 30.00th=[ 48], 40.00th=[ 57], 50.00th=[ 66], 60.00th=[ 78], | 70.00th=[ 103], 80.00th=[ 126], 90.00th=[ 174], 95.00th=[ 197], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 320, per=26.28%, avg=111.94, stdev=65.98, samples=104 iops : min= 1, max= 20, avg= 6.18, stdev= 4.18, samples=104 lat (msec) : 10=1.30%, 20=7.16%, 50=40.89%, 100=28.91%, 250=20.70% lat (msec) : 500=1.04% cpu : usr=0.05%, sys=1.62%, ctx=1273, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=179372: Sun Sep 13 08:55:09 2026 read: IOPS=5, BW=91.3KiB/s (93.5kB/s)(4048KiB/44343msec) clat (msec): min=8, max=280, avg=68.11, stdev=51.20 lat (msec): min=8, max=280, avg=68.11, stdev=51.20 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 38], 40.00th=[ 43], 50.00th=[ 53], 60.00th=[ 59], | 70.00th=[ 71], 80.00th=[ 101], 90.00th=[ 153], 95.00th=[ 178], | 99.00th=[ 239], 99.50th=[ 251], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 30, max= 351, per=24.28%, avg=98.35, stdev=59.42, samples=81 iops : min= 1, max= 21, avg= 5.31, stdev= 3.76, samples=81 write: IOPS=5, BW=94.2KiB/s (96.4kB/s)(4176KiB/44343msec); 0 zone resets clat (msec): min=23, max=478, avg=102.16, stdev=64.48 lat (msec): min=23, max=478, avg=102.16, stdev=64.48 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 37], 10.00th=[ 42], 20.00th=[ 48], | 30.00th=[ 60], 40.00th=[ 71], 50.00th=[ 84], 60.00th=[ 105], | 70.00th=[ 126], 80.00th=[ 148], 90.00th=[ 180], 95.00th=[ 220], | 99.00th=[ 334], 99.50th=[ 393], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 30, max= 256, per=22.05%, avg=93.95, stdev=48.89, samples=87 iops : min= 1, max= 16, avg= 5.02, stdev= 3.08, samples=87 lat (msec) : 10=0.19%, 20=2.72%, 50=32.04%, 100=34.17%, 250=28.93% lat (msec) : 500=1.75% cpu : usr=0.03%, sys=1.21%, ctx=695, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=254,261,0,0 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=405KiB/s (415kB/s), 91.3KiB/s-117KiB/s (93.5kB/s-120kB/s), io=21.5MiB (22.5MB), run=44343-54198msec WRITE: bw=427KiB/s (437kB/s), 94.2KiB/s-121KiB/s (96.4kB/s-124kB/s), io=22.6MiB (23.7MB), run=44343-54198msec 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=179387: Sun Sep 13 08:55:26 2026 read: IOPS=1, BW=1627KiB/s (1666kB/s)(7168KiB/4406msec) clat (usec): min=808, max=1389.7k, avg=299441.80, stdev=495431.86 lat (usec): min=810, max=1389.7k, avg=299443.45, stdev=495431.89 clat percentiles (usec): | 1.00th=[ 807], 5.00th=[ 807], 10.00th=[ 807], | 20.00th=[ 1029], 30.00th=[ 2573], 40.00th=[ 2573], | 50.00th=[ 181404], 60.00th=[ 240124], 70.00th=[ 240124], | 80.00th=[ 278922], 90.00th=[1384121], 95.00th=[1384121], | 99.00th=[1384121], 99.50th=[1384121], 99.90th=[1384121], | 99.95th=[1384121], 99.99th=[1384121] bw ( KiB/s): min= 1602, max= 4079, per=60.94%, avg=2315.20, stdev=999.41, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1162KiB/s (1190kB/s)(5120KiB/4406msec); 0 zone resets clat (msec): min=101, max=935, avg=429.67, stdev=315.15 lat (msec): min=101, max=935, avg=429.89, stdev=315.06 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 493], 80.00th=[ 493], 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= 2031, max= 3886, per=49.86%, avg=2652.00, stdev=1068.68, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=33.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=9.81%, ctx=145, 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=179388: Sun Sep 13 08:55:26 2026 read: IOPS=0, BW=380KiB/s (389kB/s)(2048KiB/5390msec) clat (usec): min=861, max=272502, avg=136682.36, stdev=192079.19 lat (usec): min=863, max=272505, avg=136684.10, stdev=192080.00 clat percentiles (usec): | 1.00th=[ 865], 5.00th=[ 865], 10.00th=[ 865], 20.00th=[ 865], | 30.00th=[ 865], 40.00th=[ 865], 50.00th=[ 865], 60.00th=[270533], | 70.00th=[270533], 80.00th=[270533], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 1615, max= 2039, per=48.09%, avg=1827.00, stdev=299.81, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1900KiB/s (1945kB/s)(10.0MiB/5390msec); 0 zone resets clat (msec): min=219, max=902, avg=490.86, stdev=257.65 lat (msec): min=220, max=939, avg=496.81, stdev=267.67 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 228], | 30.00th=[ 284], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 409], | 70.00th=[ 464], 80.00th=[ 743], 90.00th=[ 885], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1917, max= 4079, per=48.04%, avg=2555.43, stdev=960.87, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (usec) : 1000=8.33% lat (msec) : 250=16.67%, 500=50.00%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=13.32%, ctx=204, 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=179389: Sun Sep 13 08:55:26 2026 read: IOPS=1, BW=1375KiB/s (1408kB/s)(6144KiB/4468msec) clat (usec): min=1429, max=440576, avg=231392.94, stdev=186815.97 lat (usec): min=1431, max=440578, avg=231395.31, stdev=186816.18 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1434], 10.00th=[ 1434], 20.00th=[ 1958], | 30.00th=[ 1958], 40.00th=[270533], 50.00th=[270533], 60.00th=[312476], | 70.00th=[362808], 80.00th=[362808], 90.00th=[442500], 95.00th=[442500], | 99.00th=[442500], 99.50th=[442500], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 1943, max= 3835, per=64.50%, avg=2450.25, stdev=924.00, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1375KiB/s (1408kB/s)(6144KiB/4468msec); 0 zone resets clat (msec): min=169, max=901, avg=488.01, stdev=268.22 lat (msec): min=169, max=904, avg=488.72, stdev=269.23 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 592], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1667, max= 2035, per=36.22%, avg=1926.80, stdev=152.83, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=16.67%, 250=8.33%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=12.51%, ctx=220, 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=179390: Sun Sep 13 08:55:26 2026 read: IOPS=1, BW=1102KiB/s (1128kB/s)(5120KiB/4647msec) clat (usec): min=838, max=655334, avg=233684.03, stdev=274011.27 lat (usec): min=840, max=655337, avg=233685.80, stdev=274011.73 clat percentiles (usec): | 1.00th=[ 840], 5.00th=[ 840], 10.00th=[ 840], 20.00th=[ 840], | 30.00th=[ 1958], 40.00th=[ 1958], 50.00th=[173016], 60.00th=[173016], | 70.00th=[337642], 80.00th=[337642], 90.00th=[658506], 95.00th=[658506], | 99.00th=[658506], 99.50th=[658506], 99.90th=[658506], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 1984, max= 6119, per=100.00%, avg=4051.50, stdev=2923.89, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1543KiB/s (1580kB/s)(7168KiB/4647msec); 0 zone resets clat (msec): min=271, max=886, avg=490.50, stdev=256.60 lat (msec): min=271, max=886, avg=490.64, stdev=256.58 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 279], | 30.00th=[ 380], 40.00th=[ 380], 50.00th=[ 388], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 827], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1659, max= 3835, per=43.97%, avg=2338.50, stdev=1005.87, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=8.33%, 500=50.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=11.80%, ctx=162, 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=3800KiB/s (3891kB/s), 380KiB/s-1627KiB/s (389kB/s-1666kB/s), io=20.0MiB (20.0MB), run=4406-5390msec WRITE: bw=5319KiB/s (5447kB/s), 1162KiB/s-1900KiB/s (1190kB/s-1945kB/s), io=28.0MiB (29.4MB), run=4406-5390msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179392: Sun Sep 13 08:55:27 2026 read: IOPS=1, BW=1292KiB/s (1323kB/s)(7168KiB/5548msec) clat (msec): min=113, max=1219, avg=382.15, stdev=427.11 lat (msec): min=113, max=1219, avg=382.15, stdev=427.11 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 157], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 718], 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= 1526, max= 4079, per=63.80%, avg=2310.20, stdev=1008.76, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=923KiB/s (945kB/s)(5120KiB/5548msec); 0 zone resets clat (msec): min=126, max=1350, avg=537.39, stdev=476.18 lat (msec): min=126, max=1350, avg=537.53, stdev=476.16 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1984, max= 4055, per=53.06%, avg=2690.00, stdev=1182.36, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 2000=16.67% cpu : usr=0.00%, sys=3.59%, ctx=126, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179393: Sun Sep 13 08:55:27 2026 read: IOPS=0, BW=373KiB/s (382kB/s)(2048KiB/5490msec) clat (msec): min=112, max=676, avg=394.62, stdev=398.49 lat (msec): min=112, max=676, avg=394.62, stdev=398.49 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1973, max= 2039, per=55.40%, avg=2006.00, stdev=46.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1865KiB/s (1910kB/s)(10.0MiB/5490msec); 0 zone resets clat (msec): min=73, max=662, avg=447.52, stdev=201.03 lat (msec): min=74, max=662, avg=447.88, stdev=201.03 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 169], | 30.00th=[ 351], 40.00th=[ 355], 50.00th=[ 535], 60.00th=[ 550], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 600], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1799, max= 4055, per=44.06%, avg=2233.75, stdev=740.15, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 100=8.33%, 250=16.67%, 500=16.67%, 750=58.33% cpu : usr=0.02%, sys=5.50%, ctx=154, 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=179394: Sun Sep 13 08:55:27 2026 read: IOPS=1, BW=1165KiB/s (1193kB/s)(6144KiB/5272msec) clat (msec): min=89, max=663, avg=323.85, stdev=249.51 lat (msec): min=89, max=663, avg=323.85, stdev=249.51 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 279], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1984, max= 4063, per=74.47%, avg=2696.67, stdev=1183.65, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1165KiB/s (1193kB/s)(6144KiB/5272msec); 0 zone resets clat (msec): min=102, max=978, avg=528.21, stdev=358.61 lat (msec): min=102, max=978, avg=528.53, stdev=358.36 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 684], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1799, max= 3953, per=50.79%, avg=2575.00, stdev=1196.55, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 750=25.00%, 1000=16.67% cpu : usr=0.02%, sys=5.81%, ctx=145, 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=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=179395: Sun Sep 13 08:55:27 2026 read: IOPS=0, BW=905KiB/s (927kB/s)(5120KiB/5655msec) clat (msec): min=84, max=662, avg=353.63, stdev=254.34 lat (msec): min=84, max=662, avg=353.64, stdev=254.34 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2027, max= 4063, per=74.83%, avg=2709.67, stdev=1172.04, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1268KiB/s (1298kB/s)(7168KiB/5655msec); 0 zone resets clat (msec): min=102, max=1211, avg=533.75, stdev=446.57 lat (msec): min=103, max=1211, avg=533.99, stdev=446.52 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 114], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 995], 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= 1799, max= 1984, per=38.13%, avg=1933.00, stdev=89.45, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 750=33.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.12%, ctx=90, 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=3622KiB/s (3708kB/s), 373KiB/s-1292KiB/s (382kB/s-1323kB/s), io=20.0MiB (20.0MB), run=5272-5655msec WRITE: bw=5070KiB/s (5192kB/s), 923KiB/s-1865KiB/s (945kB/s-1910kB/s), io=28.0MiB (29.4MB), run=5272-5655msec 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=179402: Sun Sep 13 08:55:44 2026 read: IOPS=0, BW=3760KiB/s (3850kB/s)(12.0MiB/3268msec) clat (msec): min=1052, max=1083, avg=1072.58, stdev=17.11 lat (msec): min=1052, max=1083, avg=1072.58, stdev=17.11 clat percentiles (msec): | 1.00th=[ 1053], 5.00th=[ 1053], 10.00th=[ 1053], 20.00th=[ 1053], | 30.00th=[ 1053], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7907, max= 8078, per=100.00%, avg=7992.50, stdev=120.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.34%, sys=10.16%, ctx=252, 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=179403: Sun Sep 13 08:55:44 2026 read: IOPS=0, BW=936KiB/s (958kB/s)(4096KiB/4378msec) clat (nsec): min=1157.4M, max=1157.4M, avg=1157427238.00, stdev= 0.00 lat (nsec): min=1157.4M, max=1157.4M, avg=1157429725.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1150], 5.00th=[ 1150], 10.00th=[ 1150], 20.00th=[ 1150], | 30.00th=[ 1150], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1871KiB/s (1916kB/s)(8192KiB/4378msec); 0 zone resets clat (msec): min=1236, max=1865, avg=1550.61, stdev=444.77 lat (msec): min=1236, max=1866, avg=1551.53, stdev=445.42 clat percentiles (msec): | 1.00th=[ 1234], 5.00th=[ 1234], 10.00th=[ 1234], 20.00th=[ 1234], | 30.00th=[ 1234], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1871], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, 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=0.30%, sys=3.61%, ctx=100, 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=179405: Sun Sep 13 08:55:44 2026 write: IOPS=0, BW=2990KiB/s (3062kB/s)(12.0MiB/4110msec); 0 zone resets clat (msec): min=322, max=1918, avg=1352.33, stdev=892.97 lat (msec): min=323, max=1922, avg=1353.92, stdev=893.99 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 1921], 80.00th=[ 1921], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 8078, max= 8159, per=100.00%, avg=8118.50, stdev=57.28, 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=0.05%, sys=2.51%, ctx=60, 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=179407: Sun Sep 13 08:55:44 2026 write: IOPS=0, BW=3541KiB/s (3626kB/s)(12.0MiB/3470msec); 0 zone resets clat (msec): min=715, max=1884, avg=1136.48, stdev=649.55 lat (msec): min=717, max=1885, avg=1137.27, stdev=649.21 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8078, max= 8192, per=100.00%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.68%, ctx=46, 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=3742KiB/s (3832kB/s), 936KiB/s-3760KiB/s (958kB/s-3850kB/s), io=16.0MiB (16.8MB), run=3268-4378msec WRITE: bw=7485KiB/s (7664kB/s), 1871KiB/s-3541KiB/s (1916kB/s-3626kB/s), io=32.0MiB (33.6MB), run=3470-4378msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179404: Sun Sep 13 08:55:45 2026 read: IOPS=0, BW=3674KiB/s (3762kB/s)(12.0MiB/3345msec) clat (msec): min=1064, max=1113, avg=1085.95, stdev=25.12 lat (msec): min=1064, max=1113, avg=1085.96, stdev=25.12 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7787, max= 8015, per=100.00%, avg=7901.00, stdev=161.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.03%, sys=2.36%, ctx=41, 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=179406: Sun Sep 13 08:55:45 2026 read: IOPS=0, BW=896KiB/s (917kB/s)(4096KiB/4573msec) clat (nsec): min=1988.8M, max=1988.8M, avg=1988807794.00, stdev= 0.00 lat (nsec): min=1988.8M, max=1988.8M, avg=1988810362.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1989], 5.00th=[ 1989], 10.00th=[ 1989], 20.00th=[ 1989], | 30.00th=[ 1989], 40.00th=[ 1989], 50.00th=[ 1989], 60.00th=[ 1989], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1791KiB/s (1834kB/s)(8192KiB/4573msec); 0 zone resets clat (msec): min=937, max=1525, avg=1231.80, stdev=415.56 lat (msec): min=938, max=1526, avg=1232.35, stdev=415.71 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 1519], | 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= 7627, max= 7627, per=100.00%, avg=7627.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.02%, ctx=71, 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=179408: Sun Sep 13 08:55:45 2026 write: IOPS=0, BW=2628KiB/s (2692kB/s)(12.0MiB/4675msec); 0 zone resets clat (msec): min=435, max=2607, avg=1508.45, stdev=1086.45 lat (msec): min=436, max=2607, avg=1509.93, stdev=1086.09 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 8094, max= 8126, per=100.00%, avg=8110.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.87%, ctx=58, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=179409: Sun Sep 13 08:55:45 2026 write: IOPS=0, BW=3293KiB/s (3373kB/s)(12.0MiB/3731msec); 0 zone resets clat (msec): min=434, max=1693, avg=1211.67, stdev=679.76 lat (msec): min=437, max=1693, avg=1213.30, stdev=678.02 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1502], 50.00th=[ 1502], 60.00th=[ 1502], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.14%, ctx=42, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3583KiB/s (3669kB/s), 896KiB/s-3674KiB/s (917kB/s-3762kB/s), io=16.0MiB (16.8MB), run=3345-4573msec WRITE: bw=7009KiB/s (7177kB/s), 1791KiB/s-3293KiB/s (1834kB/s-3373kB/s), io=32.0MiB (33.6MB), run=3731-4675msec