== sanity test 398b: DIO and buffer IO race ============== 11:05:52 (1788361552) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.07126 s, 16.4 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=150798: Wed Sep 2 11:06:59 2026 read: IOPS=26, BW=106KiB/s (108kB/s)(5992KiB/56655msec) clat (usec): min=36, max=687410, avg=19137.96, stdev=22197.42 lat (usec): min=36, max=687411, avg=19139.25, stdev=22197.42 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 114], 10.00th=[ 8029], 20.00th=[ 10421], | 30.00th=[ 12125], 40.00th=[ 14091], 50.00th=[ 16319], 60.00th=[ 18482], | 70.00th=[ 22152], 80.00th=[ 26608], 90.00th=[ 32375], 95.00th=[ 38536], | 99.00th=[ 55313], 99.50th=[ 69731], 99.90th=[270533], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 13, max= 192, per=25.41%, avg=105.46, stdev=30.20, samples=112 iops : min= 3, max= 48, avg=25.92, stdev= 7.62, samples=112 write: IOPS=27, BW=111KiB/s (114kB/s)(6296KiB/56655msec); 0 zone resets clat (usec): min=803, max=191305, avg=17625.20, stdev=16031.14 lat (usec): min=803, max=191306, avg=17626.60, stdev=16031.34 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1942], 10.00th=[ 2671], 20.00th=[ 3818], | 30.00th=[ 5735], 40.00th=[ 10290], 50.00th=[ 14091], 60.00th=[ 17957], | 70.00th=[ 22676], 80.00th=[ 28181], 90.00th=[ 38011], 95.00th=[ 46924], | 99.00th=[ 67634], 99.50th=[ 82314], 99.90th=[128451], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 215, per=25.74%, avg=111.95, stdev=35.93, samples=111 iops : min= 7, max= 53, avg=27.53, stdev= 8.99, samples=111 lat (usec) : 50=0.20%, 100=1.60%, 250=1.43%, 500=0.07%, 1000=0.10% lat (msec) : 2=2.67%, 4=8.11%, 10=14.39%, 20=35.64%, 50=33.17% lat (msec) : 100=2.34%, 250=0.23%, 500=0.03%, 750=0.03% cpu : usr=0.11%, sys=18.29%, ctx=8018, 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=150799: Wed Sep 2 11:06:59 2026 read: IOPS=25, BW=104KiB/s (106kB/s)(5940KiB/57221msec) clat (usec): min=34, max=660665, avg=19147.49, stdev=20559.70 lat (usec): min=35, max=660667, avg=19148.77, stdev=20559.68 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 128], 10.00th=[ 8356], 20.00th=[ 10290], | 30.00th=[ 12125], 40.00th=[ 14091], 50.00th=[ 16319], 60.00th=[ 19006], | 70.00th=[ 21890], 80.00th=[ 26084], 90.00th=[ 32375], 95.00th=[ 39060], | 99.00th=[ 65274], 99.50th=[ 80217], 99.90th=[ 95945], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 7, max= 167, per=24.99%, avg=103.71, stdev=30.48, samples=112 iops : min= 1, max= 41, avg=25.47, stdev= 7.63, samples=112 write: IOPS=27, BW=111KiB/s (114kB/s)(6348KiB/57221msec); 0 zone resets clat (usec): min=878, max=269660, avg=17981.02, stdev=17268.64 lat (usec): min=878, max=269661, avg=17982.66, stdev=17268.56 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1893], 10.00th=[ 2442], 20.00th=[ 3556], | 30.00th=[ 5669], 40.00th=[ 10552], 50.00th=[ 14615], 60.00th=[ 18220], | 70.00th=[ 23200], 80.00th=[ 29492], 90.00th=[ 37487], 95.00th=[ 46400], | 99.00th=[ 72877], 99.50th=[ 84411], 99.90th=[210764], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 23, max= 175, per=25.27%, avg=109.94, stdev=30.59, samples=112 iops : min= 5, max= 43, avg=27.03, stdev= 7.63, samples=112 lat (usec) : 50=0.46%, 100=1.37%, 250=1.04%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=3.06%, 4=8.43%, 10=14.29%, 20=34.47%, 50=33.46% lat (msec) : 100=3.12%, 250=0.03%, 500=0.03%, 750=0.03% cpu : usr=0.13%, sys=18.23%, ctx=7800, 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=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=150800: Wed Sep 2 11:06:59 2026 read: IOPS=26, BW=106KiB/s (108kB/s)(6028KiB/57046msec) clat (usec): min=34, max=139173, avg=18291.29, stdev=11805.56 lat (usec): min=35, max=139174, avg=18292.92, stdev=11805.70 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 102], 10.00th=[ 8225], 20.00th=[ 10421], | 30.00th=[ 12256], 40.00th=[ 13960], 50.00th=[ 16188], 60.00th=[ 18744], | 70.00th=[ 22152], 80.00th=[ 26084], 90.00th=[ 31851], 95.00th=[ 36963], | 99.00th=[ 53740], 99.50th=[ 65274], 99.90th=[117965], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 15, max= 183, per=25.58%, avg=106.15, stdev=33.08, samples=112 iops : min= 3, max= 45, avg=26.08, stdev= 8.29, samples=112 write: IOPS=27, BW=110KiB/s (112kB/s)(6260KiB/57046msec); 0 zone resets clat (usec): min=719, max=728584, avg=18681.03, stdev=25175.25 lat (usec): min=720, max=728585, avg=18683.07, stdev=25175.30 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 2008], 10.00th=[ 2507], 20.00th=[ 3654], | 30.00th=[ 6194], 40.00th=[ 10814], 50.00th=[ 14746], 60.00th=[ 18482], | 70.00th=[ 23200], 80.00th=[ 29492], 90.00th=[ 37487], 95.00th=[ 46924], | 99.00th=[ 78119], 99.50th=[106431], 99.90th=[258999], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 31, max= 183, per=25.32%, avg=110.15, stdev=28.87, samples=112 iops : min= 7, max= 45, avg=27.08, stdev= 7.25, samples=112 lat (usec) : 50=0.16%, 100=2.25%, 250=1.27%, 500=0.20%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=2.44%, 4=8.79%, 10=12.63%, 20=35.90%, 50=33.53% lat (msec) : 100=2.31%, 250=0.36%, 500=0.03%, 750=0.03% cpu : usr=0.13%, sys=18.14%, ctx=8040, 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=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=150802: Wed Sep 2 11:06:59 2026 read: IOPS=26, BW=105KiB/s (107kB/s)(6052KiB/57739msec) clat (usec): min=30, max=128654, avg=18803.43, stdev=12627.53 lat (usec): min=30, max=128655, avg=18804.70, stdev=12627.46 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 111], 10.00th=[ 7767], 20.00th=[ 10421], | 30.00th=[ 12256], 40.00th=[ 14222], 50.00th=[ 16450], 60.00th=[ 19268], | 70.00th=[ 22414], 80.00th=[ 25822], 90.00th=[ 32113], 95.00th=[ 38536], | 99.00th=[ 63177], 99.50th=[ 87557], 99.90th=[114820], 99.95th=[128451], | 99.99th=[128451] bw ( KiB/s): min= 7, max= 167, per=25.18%, avg=104.49, stdev=29.43, samples=113 iops : min= 1, max= 41, avg=25.67, stdev= 7.40, samples=113 write: IOPS=27, BW=108KiB/s (111kB/s)(6236KiB/57739msec); 0 zone resets clat (usec): min=1016, max=694920, avg=18616.56, stdev=24291.03 lat (usec): min=1017, max=694922, avg=18618.98, stdev=24290.56 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1942], 10.00th=[ 2540], 20.00th=[ 3589], | 30.00th=[ 6063], 40.00th=[ 11207], 50.00th=[ 14746], 60.00th=[ 18220], | 70.00th=[ 23200], 80.00th=[ 29754], 90.00th=[ 38536], 95.00th=[ 46924], | 99.00th=[ 70779], 99.50th=[ 92799], 99.90th=[200279], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 31, max= 208, per=24.80%, avg=107.89, stdev=32.48, samples=113 iops : min= 7, max= 52, avg=26.52, stdev= 8.15, samples=113 lat (usec) : 50=0.10%, 100=1.86%, 250=1.56%, 500=0.13%, 750=0.03% lat (msec) : 2=2.73%, 4=8.53%, 10=12.76%, 20=35.12%, 50=34.05% lat (msec) : 100=2.77%, 250=0.33%, 750=0.03% cpu : usr=0.15%, sys=17.97%, ctx=7888, 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=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=416KiB/s (426kB/s), 104KiB/s-106KiB/s (106kB/s-108kB/s), io=23.4MiB (24.6MB), run=56655-57739msec WRITE: bw=435KiB/s (446kB/s), 108KiB/s-111KiB/s (111kB/s-114kB/s), io=24.6MiB (25.7MB), run=56655-57739msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150803: Wed Sep 2 11:07:53 2026 read: IOPS=13, BW=53.6KiB/s (54.9kB/s)(5992KiB/111731msec) clat (msec): min=4, max=698, avg=17.68, stdev=22.07 lat (msec): min=4, max=698, avg=17.69, stdev=22.07 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 19], 80.00th=[ 23], 90.00th=[ 33], 95.00th=[ 44], | 99.00th=[ 70], 99.50th=[ 87], 99.90th=[ 144], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 136, per=25.00%, avg=53.51, stdev=28.98, samples=221 iops : min= 1, max= 34, avg=12.97, stdev= 7.28, samples=221 write: IOPS=14, BW=56.3KiB/s (57.7kB/s)(6296KiB/111731msec); 0 zone resets clat (msec): min=21, max=296, avg=54.03, stdev=22.67 lat (msec): min=21, max=296, avg=54.03, stdev=22.67 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 29], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 41], 40.00th=[ 45], 50.00th=[ 50], 60.00th=[ 54], | 70.00th=[ 61], 80.00th=[ 68], 90.00th=[ 81], 95.00th=[ 94], | 99.00th=[ 142], 99.50th=[ 148], 99.90th=[ 230], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 15, max= 112, per=25.08%, avg=56.19, stdev=19.21, samples=221 iops : min= 3, max= 28, avg=13.64, stdev= 4.86, samples=221 lat (msec) : 10=15.56%, 20=21.29%, 50=36.43%, 100=24.61%, 250=2.05% lat (msec) : 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=4.79%, ctx=5906, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150804: Wed Sep 2 11:07:53 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(5940KiB/111766msec) clat (msec): min=4, max=654, avg=17.33, stdev=21.69 lat (msec): min=4, max=654, avg=17.33, stdev=21.69 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 18], 80.00th=[ 22], 90.00th=[ 32], 95.00th=[ 42], | 99.00th=[ 65], 99.50th=[ 90], 99.90th=[ 207], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 160, per=24.93%, avg=53.35, stdev=28.57, samples=220 iops : min= 1, max= 40, avg=12.94, stdev= 7.20, samples=220 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(6348KiB/111766msec); 0 zone resets clat (msec): min=21, max=299, avg=54.07, stdev=22.98 lat (msec): min=21, max=299, avg=54.08, stdev=22.98 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 29], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 41], 40.00th=[ 45], 50.00th=[ 49], 60.00th=[ 54], | 70.00th=[ 61], 80.00th=[ 69], 90.00th=[ 84], 95.00th=[ 95], | 99.00th=[ 133], 99.50th=[ 153], 99.90th=[ 199], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 15, max= 127, per=25.26%, avg=56.58, stdev=19.90, samples=221 iops : min= 3, max= 31, avg=13.74, stdev= 5.01, samples=221 lat (msec) : 10=15.43%, 20=21.35%, 50=37.60%, 100=23.57%, 250=1.99% lat (msec) : 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=4.85%, ctx=5894, 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=150805: Wed Sep 2 11:07:53 2026 read: IOPS=13, BW=54.3KiB/s (55.6kB/s)(6028KiB/111029msec) clat (msec): min=4, max=189, avg=17.82, stdev=14.31 lat (msec): min=4, max=189, avg=17.82, stdev=14.31 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 24], 90.00th=[ 33], 95.00th=[ 44], | 99.00th=[ 68], 99.50th=[ 85], 99.90th=[ 180], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 8, max= 144, per=25.47%, avg=54.51, stdev=27.69, samples=219 iops : min= 2, max= 36, avg=13.22, stdev= 6.97, samples=219 write: IOPS=14, BW=56.4KiB/s (57.7kB/s)(6260KiB/111029msec); 0 zone resets clat (msec): min=21, max=723, avg=53.66, stdev=28.30 lat (msec): min=21, max=723, avg=53.66, stdev=28.30 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 29], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 41], 40.00th=[ 44], 50.00th=[ 48], 60.00th=[ 53], | 70.00th=[ 59], 80.00th=[ 68], 90.00th=[ 83], 95.00th=[ 94], | 99.00th=[ 123], 99.50th=[ 148], 99.90th=[ 296], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 112, per=25.13%, avg=56.30, stdev=20.96, samples=220 iops : min= 1, max= 28, avg=13.67, stdev= 5.30, samples=220 lat (msec) : 10=15.23%, 20=20.15%, 50=39.78%, 100=23.01%, 250=1.73% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=4.92%, ctx=5870, 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=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=150806: Wed Sep 2 11:07:53 2026 read: IOPS=13, BW=54.8KiB/s (56.1kB/s)(6052KiB/110499msec) clat (msec): min=4, max=131, avg=16.90, stdev=12.33 lat (msec): min=4, max=131, avg=16.90, stdev=12.33 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 62], 99.50th=[ 70], 99.90th=[ 122], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 7, max= 151, per=25.69%, avg=54.98, stdev=28.75, samples=218 iops : min= 1, max= 37, avg=13.34, stdev= 7.24, samples=218 write: IOPS=14, BW=56.4KiB/s (57.8kB/s)(6236KiB/110499msec); 0 zone resets clat (msec): min=19, max=688, avg=54.35, stdev=29.06 lat (msec): min=19, max=688, avg=54.35, stdev=29.06 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 29], 10.00th=[ 32], 20.00th=[ 36], | 30.00th=[ 41], 40.00th=[ 45], 50.00th=[ 48], 60.00th=[ 54], | 70.00th=[ 59], 80.00th=[ 68], 90.00th=[ 83], 95.00th=[ 99], | 99.00th=[ 144], 99.50th=[ 163], 99.90th=[ 338], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 15, max= 112, per=25.17%, avg=56.38, stdev=20.31, samples=219 iops : min= 3, max= 28, avg=13.69, stdev= 5.12, samples=219 lat (msec) : 10=15.40%, 20=21.81%, 50=38.41%, 100=21.88%, 250=2.41% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.09%, sys=4.87%, ctx=5968, 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=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=215KiB/s (220kB/s), 53.1KiB/s-54.8KiB/s (54.4kB/s-56.1kB/s), io=23.4MiB (24.6MB), run=110499-111766msec WRITE: bw=225KiB/s (230kB/s), 56.3KiB/s-56.8KiB/s (57.7kB/s-58.2kB/s), io=24.6MiB (25.7MB), run=110499-111766msec 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=150845: Wed Sep 2 11:08:13 2026 read: IOPS=26, BW=420KiB/s (430kB/s)(5920KiB/14082msec) clat (usec): min=34, max=66186, avg=18100.52, stdev=13088.96 lat (usec): min=34, max=66187, avg=18101.41, stdev=13089.04 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 91], 10.00th=[ 112], 20.00th=[ 9372], | 30.00th=[11863], 40.00th=[14091], 50.00th=[16909], 60.00th=[19530], | 70.00th=[22938], 80.00th=[26870], 90.00th=[36439], 95.00th=[42730], | 99.00th=[56886], 99.50th=[65799], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 159, max= 736, per=24.79%, avg=413.74, stdev=139.78, samples=27 iops : min= 9, max= 46, avg=25.44, stdev= 8.77, samples=27 write: IOPS=28, BW=452KiB/s (463kB/s)(6368KiB/14082msec); 0 zone resets clat (usec): min=1537, max=249775, avg=18271.44, stdev=19392.82 lat (usec): min=1539, max=249777, avg=18273.62, stdev=19392.78 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2966], 10.00th=[ 3818], 20.00th=[ 4948], | 30.00th=[ 6849], 40.00th=[ 9896], 50.00th=[ 13173], 60.00th=[ 17695], | 70.00th=[ 21627], 80.00th=[ 28443], 90.00th=[ 39060], 95.00th=[ 45876], | 99.00th=[ 72877], 99.50th=[143655], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 128, max= 640, per=25.88%, avg=454.48, stdev=128.28, samples=27 iops : min= 8, max= 40, avg=28.00, stdev= 8.04, samples=27 lat (usec) : 50=0.52%, 100=2.47%, 250=5.47%, 500=0.39% lat (msec) : 2=0.65%, 4=5.21%, 10=16.80%, 20=32.29%, 50=33.59% lat (msec) : 100=2.34%, 250=0.26% cpu : usr=0.10%, sys=24.38%, ctx=2047, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150846: Wed Sep 2 11:08:13 2026 read: IOPS=25, BW=400KiB/s (410kB/s)(5744KiB/14345msec) clat (usec): min=46, max=84693, avg=19434.94, stdev=13414.05 lat (usec): min=47, max=84694, avg=19435.94, stdev=13414.14 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 101], 10.00th=[ 141], 20.00th=[10552], | 30.00th=[12911], 40.00th=[15139], 50.00th=[17957], 60.00th=[20841], | 70.00th=[24511], 80.00th=[28967], 90.00th=[35914], 95.00th=[41157], | 99.00th=[63701], 99.50th=[72877], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 54, max= 640, per=23.99%, avg=400.43, stdev=144.45, samples=28 iops : min= 3, max= 40, avg=24.61, stdev= 9.01, samples=28 write: IOPS=28, BW=456KiB/s (467kB/s)(6544KiB/14345msec); 0 zone resets clat (usec): min=1231, max=197885, avg=17632.27, stdev=18261.37 lat (usec): min=1233, max=197887, avg=17634.58, stdev=18261.37 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2835], 10.00th=[ 3621], 20.00th=[ 4752], | 30.00th=[ 6652], 40.00th=[ 9634], 50.00th=[ 12125], 60.00th=[ 15270], | 70.00th=[ 20055], 80.00th=[ 26346], 90.00th=[ 39060], 95.00th=[ 49021], | 99.00th=[ 81265], 99.50th=[ 89654], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 190, max= 672, per=25.72%, avg=451.71, stdev=129.95, samples=28 iops : min= 11, max= 42, avg=27.82, stdev= 8.15, samples=28 lat (usec) : 50=0.13%, 100=2.08%, 250=3.65%, 500=0.91% lat (msec) : 2=1.43%, 4=5.99%, 10=16.28%, 20=33.85%, 50=32.03% lat (msec) : 100=3.39%, 250=0.26% cpu : usr=0.13%, sys=24.09%, ctx=2122, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150847: Wed Sep 2 11:08:13 2026 read: IOPS=28, BW=450KiB/s (461kB/s)(6256KiB/13895msec) clat (usec): min=42, max=87037, avg=18962.11, stdev=13545.54 lat (usec): min=43, max=87038, avg=18963.11, stdev=13545.58 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 92], 10.00th=[ 122], 20.00th=[ 7701], | 30.00th=[12256], 40.00th=[15533], 50.00th=[17695], 60.00th=[21365], | 70.00th=[24511], 80.00th=[29230], 90.00th=[36963], 95.00th=[42730], | 99.00th=[56361], 99.50th=[61080], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 254, max= 702, per=27.09%, avg=452.07, stdev=106.72, samples=27 iops : min= 15, max= 43, avg=27.85, stdev= 6.76, samples=27 write: IOPS=27, BW=434KiB/s (445kB/s)(6032KiB/13895msec); 0 zone resets clat (usec): min=1362, max=117512, avg=17035.02, stdev=15124.31 lat (usec): min=1363, max=117514, avg=17037.43, stdev=15124.31 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 3163], 10.00th=[ 3851], 20.00th=[ 4883], | 30.00th=[ 6652], 40.00th=[ 8586], 50.00th=[ 12780], 60.00th=[ 16909], | 70.00th=[ 20841], 80.00th=[ 28181], 90.00th=[ 35914], 95.00th=[ 46400], | 99.00th=[ 70779], 99.50th=[ 88605], 99.90th=[117965], 99.95th=[117965], | 99.99th=[117965] bw ( KiB/s): min= 190, max= 672, per=24.43%, avg=428.93, stdev=130.94, samples=27 iops : min= 11, max= 42, avg=26.41, stdev= 8.28, samples=27 lat (usec) : 50=0.13%, 100=3.52%, 250=5.60%, 500=0.26% lat (msec) : 2=0.52%, 4=5.08%, 10=17.19%, 20=29.95%, 50=35.03% lat (msec) : 100=2.60%, 250=0.13% cpu : usr=0.15%, sys=24.62%, ctx=2155, 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=150848: Wed Sep 2 11:08:13 2026 read: IOPS=26, BW=430KiB/s (441kB/s)(6032KiB/14018msec) clat (usec): min=59, max=67785, avg=18139.00, stdev=12976.36 lat (usec): min=59, max=67786, avg=18140.18, stdev=12976.83 clat percentiles (usec): | 1.00th=[ 69], 5.00th=[ 93], 10.00th=[ 112], 20.00th=[ 241], | 30.00th=[12649], 40.00th=[15270], 50.00th=[18482], 60.00th=[21103], | 70.00th=[23725], 80.00th=[28443], 90.00th=[34341], 95.00th=[40109], | 99.00th=[53740], 99.50th=[66323], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 108, max= 701, per=25.51%, avg=425.78, stdev=121.34, samples=27 iops : min= 6, max= 43, avg=26.19, stdev= 7.67, samples=27 write: IOPS=27, BW=446KiB/s (457kB/s)(6256KiB/14018msec); 0 zone resets clat (usec): min=992, max=121620, avg=17936.45, stdev=16079.67 lat (usec): min=994, max=121622, avg=17938.98, stdev=16079.34 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 3261], 10.00th=[ 3785], 20.00th=[ 5080], | 30.00th=[ 7046], 40.00th=[ 9634], 50.00th=[ 12780], 60.00th=[ 17171], | 70.00th=[ 22676], 80.00th=[ 29754], 90.00th=[ 36963], 95.00th=[ 45351], | 99.00th=[ 77071], 99.50th=[104334], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 162, max= 733, per=25.30%, avg=444.19, stdev=119.80, samples=27 iops : min= 10, max= 45, avg=27.37, stdev= 7.53, samples=27 lat (usec) : 100=3.26%, 250=6.77%, 500=0.52%, 1000=0.26% lat (msec) : 2=0.52%, 4=5.34%, 10=16.28%, 20=26.69%, 50=37.63% lat (msec) : 100=2.47%, 250=0.26% cpu : usr=0.16%, sys=24.49%, ctx=2087, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1670KiB/s (1710kB/s), 400KiB/s-450KiB/s (410kB/s-461kB/s), io=23.4MiB (24.5MB), run=13895-14345msec WRITE: bw=1757KiB/s (1799kB/s), 434KiB/s-456KiB/s (445kB/s-467kB/s), io=24.6MiB (25.8MB), run=13895-14345msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150841: Wed Sep 2 11:08:26 2026 read: IOPS=13, BW=219KiB/s (225kB/s)(5920KiB/26972msec) clat (msec): min=5, max=158, avg=20.30, stdev=19.37 lat (msec): min=5, max=158, avg=20.30, stdev=19.37 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 28], 90.00th=[ 45], 95.00th=[ 59], | 99.00th=[ 100], 99.50th=[ 133], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 62, max= 479, per=24.51%, avg=217.40, stdev=99.52, samples=53 iops : min= 3, max= 29, avg=13.21, stdev= 6.26, samples=53 write: IOPS=14, BW=236KiB/s (242kB/s)(6368KiB/26972msec); 0 zone resets clat (msec): min=20, max=158, avg=48.55, stdev=20.25 lat (msec): min=20, max=158, avg=48.55, stdev=20.25 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 40], 50.00th=[ 43], 60.00th=[ 48], | 70.00th=[ 54], 80.00th=[ 64], 90.00th=[ 74], 95.00th=[ 88], | 99.00th=[ 118], 99.50th=[ 150], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 32, max= 480, per=25.23%, avg=235.66, stdev=100.71, samples=53 iops : min= 2, max= 30, avg=14.34, stdev= 6.41, samples=53 lat (msec) : 10=16.28%, 20=17.45%, 50=43.62%, 100=21.09%, 250=1.56% cpu : usr=0.10%, sys=6.61%, ctx=1628, 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=150842: Wed Sep 2 11:08:26 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(5744KiB/26976msec) clat (usec): min=4602, max=94030, avg=17538.05, stdev=15381.20 lat (usec): min=4603, max=94032, avg=17539.13, stdev=15381.17 clat percentiles (usec): | 1.00th=[ 5342], 5.00th=[ 5997], 10.00th=[ 6521], 20.00th=[ 7373], | 30.00th=[ 8717], 40.00th=[10683], 50.00th=[12649], 60.00th=[14746], | 70.00th=[17433], 80.00th=[22152], 90.00th=[36963], 95.00th=[55313], | 99.00th=[87557], 99.50th=[92799], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 32, max= 576, per=23.87%, avg=211.74, stdev=130.12, samples=53 iops : min= 2, max= 36, avg=12.85, stdev= 8.23, samples=53 write: IOPS=15, BW=243KiB/s (248kB/s)(6544KiB/26976msec); 0 zone resets clat (msec): min=19, max=265, avg=50.49, stdev=26.04 lat (msec): min=19, max=265, avg=50.49, stdev=26.04 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 27], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 39], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 54], 80.00th=[ 67], 90.00th=[ 88], 95.00th=[ 104], | 99.00th=[ 128], 99.50th=[ 140], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 96, max= 448, per=25.78%, avg=240.81, stdev=99.33, samples=53 iops : min= 6, max= 28, avg=14.66, stdev= 6.29, samples=53 lat (msec) : 10=17.32%, 20=18.49%, 50=42.71%, 100=18.23%, 250=3.12% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=6.38%, ctx=1613, 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=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=150843: Wed Sep 2 11:08:26 2026 read: IOPS=14, BW=236KiB/s (242kB/s)(6256KiB/26504msec) clat (msec): min=4, max=161, avg=18.82, stdev=17.30 lat (msec): min=4, max=161, avg=18.82, stdev=17.30 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 19], 80.00th=[ 25], 90.00th=[ 39], 95.00th=[ 56], | 99.00th=[ 85], 99.50th=[ 113], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 62, max= 576, per=27.40%, avg=243.02, stdev=141.56, samples=51 iops : min= 3, max= 36, avg=14.78, stdev= 9.05, samples=51 write: IOPS=14, BW=228KiB/s (233kB/s)(6032KiB/26504msec); 0 zone resets clat (msec): min=21, max=261, avg=50.51, stdev=26.55 lat (msec): min=21, max=261, avg=50.52, stdev=26.55 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 27], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 39], 50.00th=[ 42], 60.00th=[ 46], | 70.00th=[ 53], 80.00th=[ 68], 90.00th=[ 82], 95.00th=[ 103], | 99.00th=[ 148], 99.50th=[ 153], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 63, max= 416, per=24.25%, avg=226.50, stdev=101.53, samples=52 iops : min= 3, max= 26, avg=13.77, stdev= 6.39, samples=52 lat (msec) : 10=17.71%, 20=19.01%, 50=43.49%, 100=16.93%, 250=2.73% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=6.86%, ctx=1630, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150844: Wed Sep 2 11:08:26 2026 read: IOPS=14, BW=225KiB/s (231kB/s)(6032KiB/26759msec) clat (msec): min=4, max=116, avg=17.86, stdev=15.39 lat (msec): min=4, max=116, avg=17.87, stdev=15.38 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 23], 90.00th=[ 38], 95.00th=[ 51], | 99.00th=[ 84], 99.50th=[ 99], 99.90th=[ 116], 99.95th=[ 116], | 99.99th=[ 116] bw ( KiB/s): min= 32, max= 448, per=25.77%, avg=228.56, stdev=111.84, samples=52 iops : min= 2, max= 28, avg=13.90, stdev= 7.11, samples=52 write: IOPS=14, BW=234KiB/s (239kB/s)(6256KiB/26759msec); 0 zone resets clat (msec): min=19, max=168, avg=51.02, stdev=25.09 lat (msec): min=19, max=168, avg=51.02, stdev=25.09 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 28], 10.00th=[ 30], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 40], 50.00th=[ 43], 60.00th=[ 48], | 70.00th=[ 54], 80.00th=[ 68], 90.00th=[ 83], 95.00th=[ 107], | 99.00th=[ 150], 99.50th=[ 167], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 95, max= 448, per=25.02%, avg=233.66, stdev=99.27, samples=53 iops : min= 5, max= 28, avg=14.23, stdev= 6.29, samples=53 lat (msec) : 10=17.19%, 20=19.01%, 50=43.62%, 100=17.19%, 250=2.99% cpu : usr=0.10%, sys=6.53%, ctx=1644, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=888KiB/s (909kB/s), 213KiB/s-236KiB/s (218kB/s-242kB/s), io=23.4MiB (24.5MB), run=26504-26976msec WRITE: bw=934KiB/s (957kB/s), 228KiB/s-243KiB/s (233kB/s-248kB/s), io=24.6MiB (25.8MB), run=26504-26976msec 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=150856: Wed Sep 2 11:08:36 2026 read: IOPS=1, BW=2031KiB/s (2079kB/s)(7168KiB/3530msec) clat (msec): min=63, max=1169, avg=340.79, stdev=383.99 lat (msec): min=63, max=1169, avg=340.79, stdev=383.99 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 109], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 192], 60.00th=[ 230], | 70.00th=[ 230], 80.00th=[ 435], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 2039, max= 4096, per=57.18%, avg=2867.50, stdev=1007.17, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 write: IOPS=1, BW=1450KiB/s (1485kB/s)(5120KiB/3530msec); 0 zone resets clat (msec): min=108, max=289, avg=206.06, stdev=74.96 lat (msec): min=108, max=289, avg=206.14, stdev=74.97 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 2043, max= 4096, per=38.86%, avg=2729.00, stdev=1183.86, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=35.17%, ctx=588, 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=150857: Wed Sep 2 11:08:36 2026 read: IOPS=0, BW=506KiB/s (519kB/s)(2048KiB/4044msec) clat (msec): min=71, max=128, avg=100.08, stdev=39.99 lat (msec): min=71, max=128, avg=100.09, stdev=39.99 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 72], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 129], 95.00th=[ 129], | 99.00th=[ 129], 99.50th=[ 129], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 1651, max= 2043, per=36.83%, avg=1847.00, stdev=277.19, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2532KiB/s (2593kB/s)(10.0MiB/4044msec); 0 zone resets clat (msec): min=127, max=1252, avg=383.18, stdev=327.23 lat (msec): min=128, max=1252, avg=383.30, stdev=327.25 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 178], | 30.00th=[ 186], 40.00th=[ 234], 50.00th=[ 262], 60.00th=[ 271], | 70.00th=[ 426], 80.00th=[ 447], 90.00th=[ 456], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 2039, max= 6011, per=41.52%, avg=2915.33, stdev=1597.93, samples=6 iops : min= 1, max= 5, avg= 2.33, stdev= 1.51, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=36.09%, ctx=360, 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=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=150858: Wed Sep 2 11:08:36 2026 read: IOPS=1, BW=1505KiB/s (1541kB/s)(6144KiB/4083msec) clat (usec): min=512, max=1485.8k, avg=365224.26, stdev=555253.17 lat (usec): min=513, max=1485.8k, avg=365225.17, stdev=555253.28 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], | 20.00th=[ 123208], 30.00th=[ 123208], 40.00th=[ 131597], | 50.00th=[ 131597], 60.00th=[ 210764], 70.00th=[ 240124], | 80.00th=[ 240124], 90.00th=[1484784], 95.00th=[1484784], | 99.00th=[1484784], 99.50th=[1484784], 99.90th=[1484784], | 99.95th=[1484784], 99.99th=[1484784] bw ( KiB/s): min= 2003, max= 2048, per=40.48%, avg=2030.00, stdev=23.81, samples=3 iops : min= 1, max= 2, avg= 1.33, stdev= 0.58, samples=3 write: IOPS=1, BW=1505KiB/s (1541kB/s)(6144KiB/4083msec); 0 zone resets clat (msec): min=98, max=634, avg=297.60, stdev=192.08 lat (msec): min=98, max=634, avg=297.69, stdev=192.09 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 326], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1643, max= 4096, per=36.75%, avg=2580.67, stdev=1324.60, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=31.50%, ctx=1069, 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=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=150860: Wed Sep 2 11:08:36 2026 read: IOPS=1, BW=1550KiB/s (1587kB/s)(5120KiB/3304msec) clat (usec): min=609, max=245656, avg=78230.74, stdev=100359.89 lat (usec): min=611, max=245657, avg=78231.91, stdev=100359.50 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 611], 40.00th=[ 611], 50.00th=[ 64226], 60.00th=[ 64226], | 70.00th=[ 80217], 80.00th=[ 80217], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 4096, max= 4096, per=81.67%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2169KiB/s (2222kB/s)(7168KiB/3304msec); 0 zone resets clat (msec): min=123, max=1687, avg=410.40, stdev=565.90 lat (msec): min=123, max=1687, avg=410.52, stdev=565.89 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 144], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 220], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 279], 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= 3287, max= 4096, per=54.49%, avg=3826.33, stdev=467.08, samples=3 iops : min= 3, max= 4, avg= 3.67, stdev= 0.58, samples=3 lat (usec) : 750=16.67% lat (msec) : 100=16.67%, 250=50.00%, 500=8.33%, 2000=8.33% cpu : usr=0.03%, sys=32.00%, ctx=425, 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=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=5016KiB/s (5136kB/s), 506KiB/s-2031KiB/s (519kB/s-2079kB/s), io=20.0MiB (20.0MB), run=3304-4083msec WRITE: bw=7022KiB/s (7191kB/s), 1450KiB/s-2532KiB/s (1485kB/s-2593kB/s), io=28.0MiB (29.4MB), run=3304-4083msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150861: Wed Sep 2 11:08:36 2026 read: IOPS=1, BW=1580KiB/s (1618kB/s)(7168KiB/4537msec) clat (msec): min=39, max=1534, avg=562.66, stdev=499.55 lat (msec): min=39, max=1534, avg=562.66, stdev=499.55 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 40], 10.00th=[ 40], 20.00th=[ 45], | 30.00th=[ 518], 40.00th=[ 518], 50.00th=[ 558], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 651], 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= 1872, max= 2048, per=43.78%, avg=1963.00, stdev=79.76, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1128KiB/s (1156kB/s)(5120KiB/4537msec); 0 zone resets clat (msec): min=59, max=214, avg=99.19, stdev=65.10 lat (msec): min=59, max=214, avg=99.32, stdev=65.08 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 59], | 30.00th=[ 65], 40.00th=[ 65], 50.00th=[ 74], 60.00th=[ 74], | 70.00th=[ 84], 80.00th=[ 84], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 1872, max= 1872, per=29.82%, avg=1872.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 50=16.67%, 100=33.33%, 250=8.33%, 750=33.33%, 2000=8.33% cpu : usr=0.00%, sys=6.22%, ctx=230, 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=150862: Wed Sep 2 11:08:36 2026 read: IOPS=0, BW=469KiB/s (480kB/s)(2048KiB/4368msec) clat (msec): min=110, max=201, avg=155.81, stdev=64.45 lat (msec): min=110, max=201, avg=155.81, stdev=64.45 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 203], 90.00th=[ 203], 95.00th=[ 203], | 99.00th=[ 203], 99.50th=[ 203], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 1712, max= 1946, per=40.79%, avg=1829.00, stdev=165.46, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2344KiB/s (2401kB/s)(10.0MiB/4368msec); 0 zone resets clat (msec): min=69, max=1793, avg=403.57, stdev=516.95 lat (msec): min=69, max=1793, avg=403.68, stdev=516.94 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 77], | 30.00th=[ 107], 40.00th=[ 148], 50.00th=[ 271], 60.00th=[ 305], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 642], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 1946, max= 4096, per=54.15%, avg=3399.75, stdev=981.06, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.26, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.92%, ctx=125, 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=150863: Wed Sep 2 11:08:36 2026 read: IOPS=1, BW=1440KiB/s (1474kB/s)(6144KiB/4267msec) clat (msec): min=50, max=1881, avg=438.06, stdev=715.69 lat (msec): min=50, max=1881, avg=438.07, stdev=715.69 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 81], 50.00th=[ 81], 60.00th=[ 194], | 70.00th=[ 347], 80.00th=[ 347], 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= 1872, max= 6144, per=73.76%, avg=3307.33, stdev=2456.68, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 write: IOPS=1, BW=1440KiB/s (1474kB/s)(6144KiB/4267msec); 0 zone resets clat (msec): min=93, max=604, avg=262.89, stdev=179.75 lat (msec): min=94, max=604, avg=263.02, stdev=179.75 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 226], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1906, max= 4096, per=45.38%, avg=2848.75, stdev=1098.07, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 100=33.33%, 250=33.33%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=10.10%, ctx=291, 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=150864: Wed Sep 2 11:08:36 2026 read: IOPS=1, BW=1121KiB/s (1148kB/s)(5120KiB/4567msec) clat (msec): min=22, max=517, avg=279.71, stdev=212.94 lat (msec): min=22, max=517, avg=279.71, stdev=212.94 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 23], 10.00th=[ 23], 20.00th=[ 23], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 2048, max= 3893, per=66.25%, avg=2970.50, stdev=1304.61, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1570KiB/s (1607kB/s)(7168KiB/4567msec); 0 zone resets clat (msec): min=85, max=1059, avg=439.24, stdev=363.82 lat (msec): min=85, max=1059, avg=440.42, stdev=364.66 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 107], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 426], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 684], 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= 1872, max= 2048, per=31.34%, avg=1967.25, stdev=91.44, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=25.00%, 500=25.00%, 750=25.00% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=8.85%, ctx=101, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4484KiB/s (4592kB/s), 469KiB/s-1580KiB/s (480kB/s-1618kB/s), io=20.0MiB (20.0MB), run=4267-4567msec WRITE: bw=6278KiB/s (6429kB/s), 1128KiB/s-2344KiB/s (1156kB/s-2401kB/s), io=28.0MiB (29.4MB), run=4267-4567msec 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=150875: Wed Sep 2 11:08:46 2026 read: IOPS=0, BW=4088KiB/s (4186kB/s)(12.0MiB/3006msec) clat (msec): min=173, max=1904, avg=995.11, stdev=868.77 lat (msec): min=173, max=1904, avg=995.11, stdev=868.77 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.39%, ctx=57, 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=150876: Wed Sep 2 11:08:46 2026 read: IOPS=0, BW=1233KiB/s (1263kB/s)(4096KiB/3321msec) clat (nsec): min=1999.8M, max=1999.8M, avg=1999824770.00, stdev= 0.00 lat (nsec): min=1999.8M, max=1999.8M, avg=1999827320.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2005], 5.00th=[ 2005], 10.00th=[ 2005], 20.00th=[ 2005], | 30.00th=[ 2005], 40.00th=[ 2005], 50.00th=[ 2005], 60.00th=[ 2005], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2467KiB/s (2526kB/s)(8192KiB/3321msec); 0 zone resets clat (msec): min=500, max=796, avg=648.64, stdev=209.02 lat (msec): min=501, max=796, avg=649.05, stdev=208.97 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8126, max= 8126, per=82.36%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.03%, sys=7.56%, ctx=50, 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=150877: Wed Sep 2 11:08:46 2026 write: IOPS=0, BW=3700KiB/s (3789kB/s)(12.0MiB/3321msec); 0 zone resets clat (msec): min=181, max=2338, avg=1072.66, stdev=1126.41 lat (msec): min=181, max=2339, avg=1073.24, stdev=1126.67 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 8192, max= 8192, per=83.03%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.06%, sys=7.44%, ctx=57, 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=150878: Wed Sep 2 11:08:46 2026 write: IOPS=0, BW=3936KiB/s (4030kB/s)(12.0MiB/3122msec); 0 zone resets clat (msec): min=157, max=1618, avg=1008.61, stdev=759.90 lat (msec): min=157, max=1619, avg=1009.19, stdev=760.07 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8126, max= 8192, per=82.70%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.03%, sys=11.28%, ctx=98, 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=4933KiB/s (5052kB/s), 1233KiB/s-4088KiB/s (1263kB/s-4186kB/s), io=16.0MiB (16.8MB), run=3006-3321msec WRITE: bw=9867KiB/s (10.1MB/s), 2467KiB/s-3936KiB/s (2526kB/s-4030kB/s), io=32.0MiB (33.6MB), run=3122-3321msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150870: Wed Sep 2 11:08:46 2026 read: IOPS=1, BW=4514KiB/s (4623kB/s)(12.0MiB/2722msec) clat (msec): min=410, max=1675, avg=892.04, stdev=684.71 lat (msec): min=410, max=1675, avg=892.04, stdev=684.71 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.04%, sys=24.84%, ctx=1899, 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=150871: Wed Sep 2 11:08:46 2026 read: IOPS=0, BW=1418KiB/s (1452kB/s)(4096KiB/2889msec) clat (nsec): min=1697.0M, max=1697.0M, avg=1697992633.00, stdev= 0.00 lat (nsec): min=1697.0M, max=1697.0M, avg=1697994644.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1703], 5.00th=[ 1703], 10.00th=[ 1703], 20.00th=[ 1703], | 30.00th=[ 1703], 40.00th=[ 1703], 50.00th=[ 1703], 60.00th=[ 1703], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] 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=2836KiB/s (2904kB/s)(8192KiB/2889msec); 0 zone resets clat (msec): min=296, max=861, avg=578.83, stdev=399.28 lat (msec): min=296, max=861, avg=579.12, stdev=399.11 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 860], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 8159, max= 8159, per=88.97%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=13.82%, ctx=864, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150872: Wed Sep 2 11:08:46 2026 write: IOPS=0, BW=3439KiB/s (3522kB/s)(12.0MiB/3573msec); 0 zone resets clat (msec): min=235, max=1850, avg=1178.90, stdev=840.67 lat (msec): min=236, max=1850, avg=1179.27, stdev=840.65 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8159, max= 8192, per=89.15%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.03%, sys=6.61%, ctx=182, 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=150873: Wed Sep 2 11:08:46 2026 write: IOPS=1, BW=4267KiB/s (4369kB/s)(12.0MiB/2880msec); 0 zone resets clat (msec): min=251, max=1554, avg=946.40, stdev=655.69 lat (msec): min=251, max=1554, avg=946.83, stdev=655.75 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=8.37%, ctx=111, 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=5671KiB/s (5807kB/s), 1418KiB/s-4514KiB/s (1452kB/s-4623kB/s), io=16.0MiB (16.8MB), run=2722-2889msec WRITE: bw=9171KiB/s (9391kB/s), 2836KiB/s-4267KiB/s (2904kB/s-4369kB/s), io=32.0MiB (33.6MB), run=2880-3573msec