== sanity test 398b: DIO and buffer IO race ============== 10:52:23 (1789138343) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.05617 s, 7.1 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=181081: Fri Sep 11 10:55:00 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5992KiB/136635msec) clat (usec): min=39, max=292316, avg=49428.71, stdev=31028.03 lat (usec): min=39, max=292317, avg=49439.10, stdev=31024.79 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11863], 10.00th=[ 18220], 20.00th=[ 25297], | 30.00th=[ 30802], 40.00th=[ 37487], 50.00th=[ 44303], 60.00th=[ 51119], | 70.00th=[ 61080], 80.00th=[ 69731], 90.00th=[ 85459], 95.00th=[103285], | 99.00th=[156238], 99.50th=[181404], 99.90th=[233833], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 88, per=24.97%, avg=43.70, stdev=16.91, samples=267 iops : min= 1, max= 22, avg=10.28, stdev= 4.27, samples=267 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6296KiB/136635msec); 0 zone resets clat (usec): min=1035, max=1001.4k, avg=39402.39, stdev=46360.81 lat (usec): min=1037, max=1001.4k, avg=39404.58, stdev=46360.70 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 2073], | 20.00th=[ 4686], 30.00th=[ 9372], 40.00th=[ 19268], | 50.00th=[ 28181], 60.00th=[ 38011], 70.00th=[ 49021], | 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[ 119014], | 99.00th=[ 166724], 99.50th=[ 193987], 99.90th=[ 358613], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 126, per=25.08%, avg=45.90, stdev=19.76, samples=267 iops : min= 1, max= 31, avg=10.84, stdev= 5.00, samples=267 lat (usec) : 50=0.10%, 100=1.69%, 250=0.03%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.88%, 4=4.23%, 10=6.93%, 20=8.53%, 50=38.31% lat (msec) : 100=28.32%, 250=6.71%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.81%, ctx=6590, 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=181082: Fri Sep 11 10:55:00 2026 read: IOPS=11, BW=44.8KiB/s (45.8kB/s)(5940KiB/132672msec) clat (usec): min=46, max=299700, avg=48686.10, stdev=31450.55 lat (usec): min=47, max=299701, avg=48689.46, stdev=31452.06 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 12780], 10.00th=[ 18744], 20.00th=[ 25035], | 30.00th=[ 30802], 40.00th=[ 35390], 50.00th=[ 41157], 60.00th=[ 49546], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 87557], 95.00th=[103285], | 99.00th=[152044], 99.50th=[187696], 99.90th=[291505], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 6, max= 112, per=25.42%, avg=44.48, stdev=18.79, samples=259 iops : min= 1, max= 28, avg=10.48, stdev= 4.75, samples=259 write: IOPS=11, BW=47.8KiB/s (48.0kB/s)(6348KiB/132672msec); 0 zone resets clat (usec): min=999, max=1062.7k, avg=37699.77, stdev=46155.37 lat (usec): min=1000, max=1062.7k, avg=37704.38, stdev=46153.48 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1336], 10.00th=[ 2024], | 20.00th=[ 4359], 30.00th=[ 8291], 40.00th=[ 17433], | 50.00th=[ 26084], 60.00th=[ 35914], 70.00th=[ 46924], | 80.00th=[ 62653], 90.00th=[ 92799], 95.00th=[ 114820], | 99.00th=[ 166724], 99.50th=[ 204473], 99.90th=[ 244319], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 6, max= 119, per=25.83%, avg=47.27, stdev=18.88, samples=260 iops : min= 1, max= 29, avg=11.18, stdev= 4.76, samples=260 lat (usec) : 50=0.13%, 100=1.20%, 250=0.13%, 500=0.13%, 1000=0.07% lat (msec) : 2=5.18%, 4=4.43%, 10=7.55%, 20=8.66%, 50=39.36% lat (msec) : 100=26.50%, 250=6.58%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.70%, ctx=6489, 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=181083: Fri Sep 11 10:55:00 2026 read: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6028KiB/133264msec) clat (usec): min=36, max=1097.7k, avg=49715.52, stdev=41549.34 lat (usec): min=36, max=1097.7k, avg=49719.45, stdev=41548.13 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 12518], 10.00th=[ 17695], | 20.00th=[ 24511], 30.00th=[ 29492], 40.00th=[ 35390], | 50.00th=[ 42730], 60.00th=[ 50070], 70.00th=[ 60031], | 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[ 105382], | 99.00th=[ 158335], 99.50th=[ 183501], 99.90th=[ 274727], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 7, max= 96, per=25.63%, avg=44.85, stdev=16.94, samples=261 iops : min= 1, max= 24, avg=10.58, stdev= 4.28, samples=261 write: IOPS=11, BW=46.0KiB/s (48.1kB/s)(6260KiB/133264msec); 0 zone resets clat (usec): min=978, max=275503, avg=36954.92, stdev=38978.00 lat (usec): min=980, max=275505, avg=36961.86, stdev=38977.21 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 2024], 20.00th=[ 4178], | 30.00th=[ 7242], 40.00th=[ 15926], 50.00th=[ 26346], 60.00th=[ 34866], | 70.00th=[ 46924], 80.00th=[ 64226], 90.00th=[ 92799], 95.00th=[110625], | 99.00th=[164627], 99.50th=[181404], 99.90th=[258999], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 111, per=25.60%, avg=46.85, stdev=20.13, samples=259 iops : min= 1, max= 27, avg=11.08, stdev= 5.05, samples=259 lat (usec) : 50=0.23%, 100=1.56%, 250=0.10%, 1000=0.03% lat (msec) : 2=5.01%, 4=4.65%, 10=8.20%, 20=8.63%, 50=37.66% lat (msec) : 100=26.86%, 250=6.93%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=4.95%, ctx=6614, 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=181084: Fri Sep 11 10:55:00 2026 read: IOPS=11, BW=44.0KiB/s (46.0kB/s)(6052KiB/134611msec) clat (usec): min=38, max=1054.2k, avg=48767.72, stdev=40324.78 lat (usec): min=38, max=1054.2k, avg=48772.15, stdev=40324.82 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11731], 10.00th=[ 18482], | 20.00th=[ 25297], 30.00th=[ 29492], 40.00th=[ 35390], | 50.00th=[ 42206], 60.00th=[ 49546], 70.00th=[ 58983], | 80.00th=[ 68682], 90.00th=[ 83362], 95.00th=[ 102237], | 99.00th=[ 158335], 99.50th=[ 183501], 99.90th=[ 358613], | 99.95th=[1052771], 99.99th=[1052771] bw ( KiB/s): min= 7, max= 96, per=25.48%, avg=44.60, stdev=16.55, samples=264 iops : min= 1, max= 24, avg=10.52, stdev= 4.19, samples=264 write: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6236KiB/134611msec); 0 zone resets clat (usec): min=1049, max=263203, avg=38679.04, stdev=39069.71 lat (usec): min=1051, max=263205, avg=38686.07, stdev=39068.17 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1352], 10.00th=[ 2073], 20.00th=[ 4883], | 30.00th=[ 8848], 40.00th=[ 19006], 50.00th=[ 28705], 60.00th=[ 38011], | 70.00th=[ 49546], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[170918], 99.50th=[200279], 99.90th=[231736], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 117, per=25.17%, avg=46.06, stdev=20.49, samples=263 iops : min= 1, max= 29, avg=10.89, stdev= 5.17, samples=263 lat (usec) : 50=0.10%, 100=1.53%, 250=0.26%, 500=0.07% lat (msec) : 2=4.92%, 4=3.81%, 10=7.78%, 20=8.11%, 50=38.74% lat (msec) : 100=28.19%, 250=6.41%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.76%, ctx=6453, 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=176KiB/s (180kB/s), 43.9KiB/s-45.2KiB/s (44.9kB/s-46.3kB/s), io=23.4MiB (24.6MB), run=132672-136635msec WRITE: bw=184KiB/s (188kB/s), 46.1KiB/s-47.8KiB/s (47.2kB/s-48.0kB/s), io=24.6MiB (25.7MB), run=132672-136635msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181085: Fri Sep 11 10:55:38 2026 read: IOPS=8, BW=34.4KiB/s (35.3kB/s)(5992KiB/174057msec) clat (msec): min=5, max=1175, avg=45.07, stdev=50.73 lat (msec): min=5, max=1175, avg=45.07, stdev=50.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 100], 95.00th=[ 133], | 99.00th=[ 205], 99.50th=[ 249], 99.90th=[ 338], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 144, per=25.43%, avg=34.84, stdev=25.67, samples=333 iops : min= 1, max= 36, avg= 8.04, stdev= 6.48, samples=333 write: IOPS=9, BW=36.2KiB/s (37.0kB/s)(6296KiB/174057msec); 0 zone resets clat (msec): min=12, max=417, avg=67.44, stdev=48.69 lat (msec): min=12, max=417, avg=67.44, stdev=48.68 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 42], 50.00th=[ 53], 60.00th=[ 66], | 70.00th=[ 83], 80.00th=[ 103], 90.00th=[ 133], 95.00th=[ 161], | 99.00th=[ 226], 99.50th=[ 271], 99.90th=[ 363], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7, max= 127, per=25.01%, avg=36.01, stdev=24.72, samples=339 iops : min= 1, max= 31, avg= 8.33, stdev= 6.23, samples=339 lat (msec) : 10=2.34%, 20=15.40%, 50=41.89%, 100=24.87%, 250=14.94% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.05%, sys=1.57%, ctx=4830, 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=181086: Fri Sep 11 10:55:38 2026 read: IOPS=8, BW=34.2KiB/s (34.0kB/s)(5940KiB/173794msec) clat (msec): min=5, max=1116, avg=44.40, stdev=49.72 lat (msec): min=5, max=1116, avg=44.40, stdev=49.72 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 102], 95.00th=[ 132], | 99.00th=[ 199], 99.50th=[ 243], 99.90th=[ 342], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 159, per=26.08%, avg=35.73, stdev=26.61, samples=324 iops : min= 1, max= 39, avg= 8.27, stdev= 6.69, samples=324 write: IOPS=9, BW=36.5KiB/s (37.4kB/s)(6348KiB/173794msec); 0 zone resets clat (msec): min=10, max=363, avg=67.70, stdev=48.82 lat (msec): min=10, max=363, avg=67.71, stdev=48.82 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 65], | 70.00th=[ 82], 80.00th=[ 104], 90.00th=[ 134], 95.00th=[ 165], | 99.00th=[ 239], 99.50th=[ 266], 99.90th=[ 342], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 119, per=25.41%, avg=36.59, stdev=23.99, samples=338 iops : min= 1, max= 29, avg= 8.48, stdev= 6.06, samples=338 lat (msec) : 10=2.64%, 20=15.59%, 50=42.90%, 100=23.01%, 250=15.27% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.05%, sys=1.69%, ctx=4890, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181087: Fri Sep 11 10:55:38 2026 read: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6028KiB/173681msec) clat (msec): min=5, max=333, avg=45.29, stdev=42.29 lat (msec): min=5, max=333, avg=45.29, stdev=42.29 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 102], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 247], 99.90th=[ 309], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 157, per=25.63%, avg=35.11, stdev=25.10, samples=333 iops : min= 1, max= 39, avg= 8.11, stdev= 6.34, samples=333 write: IOPS=9, BW=36.0KiB/s (36.9kB/s)(6260KiB/173681msec); 0 zone resets clat (msec): min=9, max=1125, avg=67.12, stdev=55.53 lat (msec): min=9, max=1125, avg=67.12, stdev=55.53 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 51], 60.00th=[ 64], | 70.00th=[ 80], 80.00th=[ 102], 90.00th=[ 133], 95.00th=[ 161], | 99.00th=[ 241], 99.50th=[ 288], 99.90th=[ 418], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 127, per=24.89%, avg=35.83, stdev=25.46, samples=339 iops : min= 1, max= 31, avg= 8.29, stdev= 6.43, samples=339 lat (msec) : 10=2.05%, 20=15.66%, 50=42.71%, 100=24.22%, 250=14.65% lat (msec) : 500=0.68%, 2000=0.03% cpu : usr=0.05%, sys=1.66%, ctx=4909, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181088: Fri Sep 11 10:55:38 2026 read: IOPS=8, BW=34.8KiB/s (35.7kB/s)(6052KiB/173772msec) clat (msec): min=5, max=312, avg=45.13, stdev=42.55 lat (msec): min=5, max=312, avg=45.14, stdev=42.55 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 49], 80.00th=[ 66], 90.00th=[ 105], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 228], 99.90th=[ 296], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 143, per=26.26%, avg=35.98, stdev=26.39, samples=327 iops : min= 1, max= 35, avg= 8.32, stdev= 6.64, samples=327 write: IOPS=8, BW=35.9KiB/s (36.7kB/s)(6236KiB/173772msec); 0 zone resets clat (msec): min=12, max=1041, avg=67.37, stdev=55.20 lat (msec): min=12, max=1041, avg=67.38, stdev=55.20 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 49], 60.00th=[ 63], | 70.00th=[ 80], 80.00th=[ 103], 90.00th=[ 134], 95.00th=[ 169], | 99.00th=[ 236], 99.50th=[ 275], 99.90th=[ 384], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 119, per=24.80%, avg=35.72, stdev=24.72, samples=339 iops : min= 1, max= 29, avg= 8.25, stdev= 6.21, samples=339 lat (msec) : 10=2.54%, 20=15.79%, 50=42.68%, 100=22.85%, 250=15.66% lat (msec) : 500=0.46%, 2000=0.03% cpu : usr=0.06%, sys=1.68%, ctx=4940, 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=138KiB/s (141kB/s), 34.2KiB/s-34.8KiB/s (34.0kB/s-35.7kB/s), io=23.4MiB (24.6MB), run=173681-174057msec WRITE: bw=144KiB/s (148kB/s), 35.9KiB/s-36.5KiB/s (36.7kB/s-37.4kB/s), io=24.6MiB (25.7MB), run=173681-174057msec 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=181133: Fri Sep 11 10:56:20 2026 read: IOPS=11, BW=192KiB/s (196kB/s)(5920KiB/30873msec) clat (usec): min=40, max=194080, avg=40212.12, stdev=26974.18 lat (usec): min=40, max=194082, avg=40213.64, stdev=26974.54 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 70], 10.00th=[ 112], 20.00th=[ 21890], | 30.00th=[ 26084], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 48497], 80.00th=[ 60031], 90.00th=[ 70779], 95.00th=[ 91751], | 99.00th=[127402], 99.50th=[129500], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 63, max= 383, per=25.46%, avg=191.72, stdev=76.93, samples=61 iops : min= 3, max= 23, avg=11.20, stdev= 4.80, samples=61 write: IOPS=12, BW=206KiB/s (211kB/s)(6368KiB/30873msec); 0 zone resets clat (usec): min=1625, max=263804, avg=39792.43, stdev=38577.48 lat (usec): min=1626, max=263806, avg=39795.34, stdev=38578.04 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2180], 10.00th=[ 3687], 20.00th=[ 6718], | 30.00th=[ 10159], 40.00th=[ 19792], 50.00th=[ 29230], 60.00th=[ 40633], | 70.00th=[ 52167], 80.00th=[ 68682], 90.00th=[ 89654], 95.00th=[107480], | 99.00th=[185598], 99.50th=[204473], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 63, max= 504, per=25.99%, avg=205.80, stdev=82.45, samples=61 iops : min= 3, max= 31, avg=12.10, stdev= 5.17, samples=61 lat (usec) : 50=0.39%, 100=4.17%, 250=0.65%, 750=0.13% lat (msec) : 2=2.21%, 4=3.91%, 10=9.38%, 20=8.85%, 50=39.97% lat (msec) : 100=25.65%, 250=4.56%, 500=0.13% cpu : usr=0.07%, sys=5.86%, ctx=1701, 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=181134: Fri Sep 11 10:56:20 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(5744KiB/31781msec) clat (usec): min=40, max=233610, avg=46841.86, stdev=33228.20 lat (usec): min=40, max=233611, avg=46843.50, stdev=33228.26 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 71], 10.00th=[ 14615], 20.00th=[ 25035], | 30.00th=[ 30278], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 47449], | 70.00th=[ 55837], 80.00th=[ 65274], 90.00th=[ 77071], 95.00th=[106431], | 99.00th=[183501], 99.50th=[233833], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 28, max= 381, per=23.86%, avg=179.65, stdev=70.36, samples=62 iops : min= 1, max= 23, avg=10.44, stdev= 4.36, samples=62 write: IOPS=12, BW=206KiB/s (211kB/s)(6544KiB/31781msec); 0 zone resets clat (usec): min=1747, max=225090, avg=36018.75, stdev=34330.03 lat (usec): min=1748, max=225092, avg=36021.21, stdev=34330.30 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2966], 10.00th=[ 4293], 20.00th=[ 7111], | 30.00th=[ 10159], 40.00th=[ 18220], 50.00th=[ 25297], 60.00th=[ 36439], | 70.00th=[ 45351], 80.00th=[ 61080], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[147850], 99.50th=[156238], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 62, max= 352, per=26.21%, avg=207.59, stdev=77.32, samples=61 iops : min= 3, max= 22, avg=12.20, stdev= 4.92, samples=61 lat (usec) : 50=0.26%, 100=2.73%, 250=0.65%, 500=0.13% lat (msec) : 2=1.04%, 4=3.65%, 10=10.94%, 20=10.94%, 50=38.28% lat (msec) : 100=25.91%, 250=5.47% cpu : usr=0.06%, sys=5.96%, ctx=1768, 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=181135: Fri Sep 11 10:56:20 2026 read: IOPS=12, BW=203KiB/s (208kB/s)(6256KiB/30837msec) clat (usec): min=47, max=214500, avg=43357.22, stdev=28827.26 lat (usec): min=48, max=214502, avg=43359.08, stdev=28826.95 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 545], 20.00th=[ 22152], | 30.00th=[ 27657], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 62129], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[128451], 99.50th=[152044], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 56, max= 415, per=26.97%, avg=203.08, stdev=82.00, samples=60 iops : min= 3, max= 25, avg=11.92, stdev= 5.09, samples=60 write: IOPS=12, BW=196KiB/s (200kB/s)(6032KiB/30837msec); 0 zone resets clat (usec): min=1532, max=196948, avg=35927.62, stdev=33425.06 lat (usec): min=1534, max=196950, avg=35930.31, stdev=33424.71 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2606], 10.00th=[ 4293], 20.00th=[ 6849], | 30.00th=[ 12518], 40.00th=[ 20055], 50.00th=[ 27657], 60.00th=[ 36963], | 70.00th=[ 42730], 80.00th=[ 58459], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[166724], 99.50th=[175113], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 62, max= 444, per=24.30%, avg=192.47, stdev=92.92, samples=60 iops : min= 3, max= 27, avg=11.25, stdev= 5.80, samples=60 lat (usec) : 50=0.13%, 100=3.91%, 250=0.39%, 500=0.52%, 750=0.39% lat (msec) : 2=1.69%, 4=3.39%, 10=8.72%, 20=9.11%, 50=41.54% lat (msec) : 100=25.52%, 250=4.69% cpu : usr=0.09%, sys=6.32%, ctx=1781, 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=181136: Fri Sep 11 10:56:20 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(6032KiB/30057msec) clat (usec): min=43, max=263367, avg=43618.00, stdev=30536.07 lat (usec): min=43, max=263368, avg=43619.45, stdev=30536.06 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 145], 20.00th=[ 21365], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[127402], 99.50th=[168821], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 28, max= 319, per=26.38%, avg=198.61, stdev=68.92, samples=59 iops : min= 1, max= 19, avg=11.63, stdev= 4.31, samples=59 write: IOPS=13, BW=208KiB/s (213kB/s)(6256KiB/30057msec); 0 zone resets clat (usec): min=1500, max=255281, avg=34080.69, stdev=35084.10 lat (usec): min=1501, max=255282, avg=34087.31, stdev=35081.59 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2573], 10.00th=[ 3949], 20.00th=[ 5800], | 30.00th=[ 8455], 40.00th=[ 14877], 50.00th=[ 23200], 60.00th=[ 30802], | 70.00th=[ 43254], 80.00th=[ 58983], 90.00th=[ 81265], 95.00th=[104334], | 99.00th=[137364], 99.50th=[233833], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 32, max= 601, per=26.20%, avg=207.54, stdev=93.91, samples=59 iops : min= 2, max= 37, avg=12.20, stdev= 5.88, samples=59 lat (usec) : 50=0.39%, 100=3.91%, 250=1.43%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.43%, 4=4.17%, 10=11.59%, 20=8.59%, 50=38.15% lat (msec) : 100=25.13%, 250=4.69%, 500=0.26% cpu : usr=0.07%, sys=6.24%, ctx=1698, 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=754KiB/s (772kB/s), 181KiB/s-203KiB/s (185kB/s-208kB/s), io=23.4MiB (24.5MB), run=30057-31781msec WRITE: bw=793KiB/s (812kB/s), 196KiB/s-208KiB/s (200kB/s-213kB/s), io=24.6MiB (25.8MB), run=30057-31781msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181128: Fri Sep 11 10:56:31 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(5920KiB/42732msec) clat (msec): min=7, max=282, avg=45.18, stdev=40.86 lat (msec): min=7, max=282, avg=45.18, stdev=40.86 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 63], 90.00th=[ 99], 95.00th=[ 129], | 99.00th=[ 218], 99.50th=[ 264], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 384, per=25.00%, avg=140.00, stdev=78.79, samples=82 iops : min= 1, max= 24, avg= 7.99, stdev= 4.99, samples=82 write: IOPS=9, BW=149KiB/s (153kB/s)(6368KiB/42732msec); 0 zone resets clat (msec): min=15, max=297, avg=64.62, stdev=41.34 lat (msec): min=15, max=297, avg=64.63, stdev=41.35 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 74], 80.00th=[ 92], 90.00th=[ 118], 95.00th=[ 144], | 99.00th=[ 207], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 380, per=25.66%, avg=151.15, stdev=80.76, samples=82 iops : min= 1, max= 23, avg= 8.70, stdev= 5.16, samples=82 lat (msec) : 10=0.65%, 20=12.76%, 50=46.88%, 100=26.56%, 250=12.63% lat (msec) : 500=0.52% cpu : usr=0.04%, sys=1.85%, ctx=1221, 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=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=181129: Fri Sep 11 10:56:31 2026 read: IOPS=8, BW=136KiB/s (139kB/s)(5744KiB/42235msec) clat (msec): min=8, max=229, avg=44.29, stdev=35.22 lat (msec): min=8, max=229, avg=44.30, stdev=35.21 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 69], 90.00th=[ 97], 95.00th=[ 118], | 99.00th=[ 157], 99.50th=[ 203], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 30, max= 384, per=24.37%, avg=136.48, stdev=86.06, samples=82 iops : min= 1, max= 24, avg= 7.76, stdev= 5.46, samples=82 write: IOPS=9, BW=155KiB/s (159kB/s)(6544KiB/42235msec); 0 zone resets clat (msec): min=12, max=283, avg=64.23, stdev=40.27 lat (msec): min=12, max=283, avg=64.23, stdev=40.27 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 63], | 70.00th=[ 75], 80.00th=[ 89], 90.00th=[ 115], 95.00th=[ 146], | 99.00th=[ 213], 99.50th=[ 232], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 412, per=26.07%, avg=153.53, stdev=82.39, samples=83 iops : min= 1, max= 25, avg= 8.83, stdev= 5.21, samples=83 lat (msec) : 10=0.52%, 20=11.72%, 50=44.79%, 100=31.12%, 250=11.59% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.94%, ctx=1194, 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=181130: Fri Sep 11 10:56:31 2026 read: IOPS=9, BW=147KiB/s (151kB/s)(6256KiB/42443msec) clat (msec): min=6, max=310, avg=46.36, stdev=44.58 lat (msec): min=6, max=310, avg=46.36, stdev=44.58 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 97], 95.00th=[ 140], | 99.00th=[ 218], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 512, per=26.61%, avg=149.01, stdev=103.94, samples=83 iops : min= 1, max= 32, avg= 8.55, stdev= 6.59, samples=83 write: IOPS=8, BW=142KiB/s (146kB/s)(6032KiB/42443msec); 0 zone resets clat (msec): min=17, max=258, avg=64.00, stdev=40.36 lat (msec): min=17, max=258, avg=64.01, stdev=40.36 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 50], 60.00th=[ 58], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 121], 95.00th=[ 146], | 99.00th=[ 224], 99.50th=[ 245], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 349, per=24.62%, avg=145.04, stdev=73.92, samples=82 iops : min= 1, max= 21, avg= 8.30, stdev= 4.71, samples=82 lat (msec) : 10=1.69%, 20=11.72%, 50=48.18%, 100=24.35%, 250=13.54% lat (msec) : 500=0.52% cpu : usr=0.08%, sys=2.01%, ctx=1209, 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= 0: pid=181131: Fri Sep 11 10:56:31 2026 read: IOPS=8, BW=142KiB/s (145kB/s)(6032KiB/42550msec) clat (msec): min=7, max=319, avg=47.39, stdev=42.68 lat (msec): min=7, max=319, avg=47.40, stdev=42.68 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 68], 90.00th=[ 108], 95.00th=[ 140], | 99.00th=[ 215], 99.50th=[ 228], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 472, per=26.33%, avg=147.42, stdev=90.43, samples=80 iops : min= 1, max= 29, avg= 8.46, stdev= 5.78, samples=80 write: IOPS=9, BW=147KiB/s (151kB/s)(6256KiB/42550msec); 0 zone resets clat (msec): min=16, max=282, avg=62.45, stdev=39.47 lat (msec): min=16, max=282, avg=62.45, stdev=39.47 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 50], 60.00th=[ 57], | 70.00th=[ 69], 80.00th=[ 88], 90.00th=[ 115], 95.00th=[ 140], | 99.00th=[ 197], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 352, per=24.86%, avg=146.44, stdev=78.59, samples=84 iops : min= 1, max= 22, avg= 8.39, stdev= 5.00, samples=84 lat (msec) : 10=0.39%, 20=12.76%, 50=48.31%, 100=25.26%, 250=12.89% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.93%, ctx=1188, 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=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=561KiB/s (574kB/s), 136KiB/s-147KiB/s (139kB/s-151kB/s), io=23.4MiB (24.5MB), run=42235-42732msec WRITE: bw=590KiB/s (604kB/s), 142KiB/s-155KiB/s (146kB/s-159kB/s), io=24.6MiB (25.8MB), run=42235-42732msec 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=181148: Fri Sep 11 10:56:49 2026 read: IOPS=1, BW=1899KiB/s (1945kB/s)(7168KiB/3774msec) clat (msec): min=3, max=301, avg=186.33, stdev=94.81 lat (msec): min=3, max=301, avg=186.78, stdev=94.55 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 138], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 245], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 2007, max= 4039, per=79.19%, avg=2759.00, stdev=961.58, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1357KiB/s (1389kB/s)(5120KiB/3774msec); 0 zone resets clat (msec): min=111, max=1594, avg=484.72, stdev=635.62 lat (msec): min=111, max=1594, avg=485.04, stdev=635.60 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 1965, max= 4063, per=51.53%, avg=2513.50, stdev=1033.26, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 4=8.33%, 250=66.67%, 500=16.67%, 2000=8.33% cpu : usr=0.03%, sys=13.62%, ctx=182, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=181149: Fri Sep 11 10:56:49 2026 read: IOPS=0, BW=348KiB/s (357kB/s)(2048KiB/5877msec) clat (usec): min=574, max=2300.3k, avg=1150452.39, stdev=1626172.64 lat (usec): min=576, max=2300.3k, avg=1150454.56, stdev=1626173.14 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], | 20.00th=[ 578], 30.00th=[ 578], 40.00th=[ 578], | 50.00th=[ 578], 60.00th=[2298479], 70.00th=[2298479], | 80.00th=[2298479], 90.00th=[2298479], 95.00th=[2298479], | 99.00th=[2298479], 99.50th=[2298479], 99.90th=[2298479], | 99.95th=[2298479], 99.99th=[2298479] bw ( KiB/s): min= 2035, max= 2039, per=58.47%, avg=2037.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1742KiB/s (1784kB/s)(10.0MiB/5877msec); 0 zone resets clat (msec): min=144, max=1057, avg=340.64, stdev=282.19 lat (msec): min=144, max=1057, avg=340.95, stdev=282.09 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 171], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 190], 60.00th=[ 259], | 70.00th=[ 334], 80.00th=[ 347], 90.00th=[ 558], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 2035, max= 4079, per=62.38%, avg=3043.00, stdev=1102.94, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=10.47%, ctx=319, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181150: Fri Sep 11 10:56:49 2026 read: IOPS=2, BW=2152KiB/s (2204kB/s)(6144KiB/2855msec) clat (usec): min=566, max=243643, avg=61982.47, stdev=101352.73 lat (usec): min=567, max=243645, avg=61983.91, stdev=101352.79 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 627], | 30.00th=[ 627], 40.00th=[ 734], 50.00th=[ 734], 60.00th=[ 3720], | 70.00th=[122160], 80.00th=[122160], 90.00th=[244319], 95.00th=[244319], | 99.00th=[244319], 99.50th=[244319], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 4079, max= 6107, per=100.00%, avg=5093.00, stdev=1434.01, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2152KiB/s (2204kB/s)(6144KiB/2855msec); 0 zone resets clat (msec): min=202, max=995, avg=405.93, stdev=294.71 lat (msec): min=202, max=996, avg=406.31, stdev=294.97 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 351], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1667, max= 4071, per=50.21%, avg=2449.00, stdev=1094.75, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=25.00% lat (msec) : 4=8.33%, 250=25.00%, 500=33.33%, 1000=8.33% cpu : usr=0.18%, sys=15.52%, 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=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=181152: Fri Sep 11 10:56:49 2026 read: IOPS=0, BW=1013KiB/s (1037kB/s)(5120KiB/5056msec) clat (usec): min=558, max=342752, avg=95854.59, stdev=148955.63 lat (usec): min=560, max=342753, avg=95856.05, stdev=148955.58 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 996], 40.00th=[ 996], 50.00th=[ 3818], 60.00th=[ 3818], | 70.00th=[131597], 80.00th=[131597], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 4071, max= 4079, per=100.00%, avg=4075.00, stdev= 5.66, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1418KiB/s (1452kB/s)(7168KiB/5056msec); 0 zone resets clat (msec): min=112, max=2154, avg=633.26, stdev=708.75 lat (msec): min=112, max=2154, avg=633.39, stdev=708.76 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 125], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 502], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 659], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 1484, max= 4079, per=47.54%, avg=2318.80, stdev=1010.41, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 4=8.33%, 250=33.33%, 500=8.33%, 750=25.00%, >=2000=8.33% cpu : usr=0.10%, sys=10.23%, ctx=135, 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=3485KiB/s (3568kB/s), 348KiB/s-2152KiB/s (357kB/s-2204kB/s), io=20.0MiB (20.0MB), run=2855-5877msec WRITE: bw=4879KiB/s (4996kB/s), 1357KiB/s-2152KiB/s (1389kB/s-2204kB/s), io=28.0MiB (29.4MB), run=2855-5877msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181151: Fri Sep 11 10:56:50 2026 read: IOPS=1, BW=1254KiB/s (1284kB/s)(7168KiB/5718msec) clat (msec): min=69, max=947, avg=360.55, stdev=302.73 lat (msec): min=69, max=947, avg=360.55, stdev=302.73 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 86], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 518], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1607, max= 3893, per=71.89%, avg=2324.20, stdev=896.84, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=895KiB/s (917kB/s)(5120KiB/5718msec); 0 zone resets clat (msec): min=156, max=1805, avg=560.30, stdev=700.09 lat (msec): min=156, max=1805, avg=560.45, stdev=700.05 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 1946, max= 4063, per=55.79%, avg=2525.00, stdev=1026.41, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=2.87%, ctx=69, 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=181153: Fri Sep 11 10:56:50 2026 read: IOPS=0, BW=323KiB/s (331kB/s)(2048KiB/6334msec) clat (msec): min=115, max=2371, avg=1243.81, stdev=1595.06 lat (msec): min=115, max=2371, avg=1243.82, stdev=1595.06 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 2366], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 2031, max= 2031, per=62.82%, avg=2031.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1617KiB/s (1655kB/s)(10.0MiB/6334msec); 0 zone resets clat (msec): min=71, max=985, avg=347.21, stdev=278.66 lat (msec): min=71, max=985, avg=347.37, stdev=278.68 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 226], 50.00th=[ 264], 60.00th=[ 288], | 70.00th=[ 409], 80.00th=[ 485], 90.00th=[ 558], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 2031, max= 5840, per=70.92%, avg=3209.80, stdev=1716.70, samples=5 iops : min= 1, max= 5, avg= 2.40, stdev= 1.67, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=3.63%, ctx=123, 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=181154: Fri Sep 11 10:56:50 2026 read: IOPS=1, BW=1073KiB/s (1099kB/s)(6144KiB/5725msec) clat (msec): min=93, max=423, avg=242.04, stdev=151.61 lat (msec): min=93, max=423, avg=242.04, stdev=151.61 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 134], 50.00th=[ 134], 60.00th=[ 334], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 1946, max= 4063, per=78.10%, avg=2525.00, stdev=1026.41, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1073KiB/s (1099kB/s)(6144KiB/5725msec); 0 zone resets clat (msec): min=121, max=2363, avg=643.38, stdev=857.17 lat (msec): min=121, max=2364, avg=643.69, stdev=857.08 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 456], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 1946, max= 2048, per=44.68%, avg=2022.33, stdev=38.01, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=3.20%, ctx=63, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181155: Fri Sep 11 10:56:50 2026 read: IOPS=0, BW=916KiB/s (938kB/s)(5120KiB/5588msec) clat (msec): min=137, max=358, avg=266.75, stdev=102.85 lat (msec): min=137, max=358, avg=266.75, stdev=102.85 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 2031, max= 3893, per=82.19%, avg=2657.33, stdev=1070.15, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1283KiB/s (1314kB/s)(7168KiB/5588msec); 0 zone resets clat (msec): min=126, max=1960, avg=602.29, stdev=678.27 lat (msec): min=126, max=1960, avg=602.98, stdev=677.84 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 129], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 243], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 936], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 1549, max= 4063, per=51.73%, avg=2341.20, stdev=984.98, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.07%, sys=5.10%, ctx=108, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3233KiB/s (3311kB/s), 323KiB/s-1254KiB/s (331kB/s-1284kB/s), io=20.0MiB (20.0MB), run=5588-6334msec WRITE: bw=4527KiB/s (4635kB/s), 895KiB/s-1617KiB/s (917kB/s-1655kB/s), io=28.0MiB (29.4MB), run=5588-6334msec 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=181162: Fri Sep 11 10:57:04 2026 read: IOPS=1, BW=4452KiB/s (4559kB/s)(12.0MiB/2760msec) clat (msec): min=514, max=1303, avg=918.54, stdev=394.88 lat (msec): min=514, max=1303, avg=918.54, stdev=394.89 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8047, max= 8192, per=100.00%, avg=8119.50, stdev=102.53, 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=4.17%, ctx=47, 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=181163: Fri Sep 11 10:57:04 2026 read: IOPS=0, BW=1410KiB/s (1444kB/s)(4096KiB/2905msec) clat (nsec): min=606653k, max=606653k, avg=606652758.00, stdev= 0.00 lat (nsec): min=606654k, max=606654k, avg=606654338.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 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= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2820KiB/s (2888kB/s)(8192KiB/2905msec); 0 zone resets clat (msec): min=653, max=1642, avg=1148.09, stdev=698.80 lat (msec): min=654, max=1642, avg=1148.48, stdev=698.84 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 1636], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7968, max= 7968, per=70.64%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.44%, ctx=46, 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=181164: Fri Sep 11 10:57:04 2026 write: IOPS=2, BW=10.7MiB/s (11.2MB/s)(12.0MiB/1124msec); 0 zone resets clat (msec): min=220, max=652, avg=370.33, stdev=244.10 lat (msec): min=221, max=655, avg=372.31, stdev=245.16 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min=15058, max=15058, per=100.00%, avg=15058.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 750=33.33% cpu : usr=0.00%, sys=12.02%, ctx=39, 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=181165: Fri Sep 11 10:57:04 2026 write: IOPS=1, BW=4611KiB/s (4722kB/s)(12.0MiB/2665msec); 0 zone resets clat (msec): min=261, max=1481, avg=871.37, stdev=609.64 lat (msec): min=262, max=1481, avg=872.44, stdev=609.75 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 6826, max= 8015, per=65.79%, avg=7420.50, stdev=840.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.08%, sys=5.14%, ctx=59, 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=5640KiB/s (5775kB/s), 1410KiB/s-4452KiB/s (1444kB/s-4559kB/s), io=16.0MiB (16.8MB), run=2760-2905msec WRITE: bw=11.0MiB/s (11.6MB/s), 2820KiB/s-10.7MiB/s (2888kB/s-11.2MB/s), io=32.0MiB (33.6MB), run=1124-2905msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181167: Fri Sep 11 10:57:05 2026 read: IOPS=1, BW=5319KiB/s (5447kB/s)(12.0MiB/2310msec) clat (msec): min=653, max=831, avg=769.35, stdev=100.65 lat (msec): min=653, max=831, avg=769.35, stdev=100.65 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=14.90%, ctx=370, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181168: Fri Sep 11 10:57:05 2026 read: IOPS=0, BW=1379KiB/s (1412kB/s)(4096KiB/2971msec) clat (nsec): min=748162k, max=748162k, avg=748161641.00, stdev= 0.00 lat (nsec): min=748164k, max=748164k, avg=748163911.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2757KiB/s (2823kB/s)(8192KiB/2971msec); 0 zone resets clat (msec): min=211, max=2005, avg=1108.49, stdev=1267.91 lat (msec): min=213, max=2005, avg=1109.71, stdev=1266.88 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 213], 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] lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.36%, ctx=143, 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=181169: Fri Sep 11 10:57:05 2026 write: IOPS=0, BW=4014KiB/s (4111kB/s)(12.0MiB/3061msec); 0 zone resets clat (msec): min=564, max=1683, avg=1018.98, stdev=588.64 lat (msec): min=565, max=1684, avg=1019.91, stdev=588.19 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 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= 8143, per=75.99%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.46%, ctx=52, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181170: Fri Sep 11 10:57:05 2026 write: IOPS=1, BW=5319KiB/s (5447kB/s)(12.0MiB/2310msec); 0 zone resets clat (msec): min=455, max=1368, avg=768.98, stdev=519.19 lat (msec): min=456, max=1368, avg=769.48, stdev=519.28 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8078, max= 8110, per=75.62%, avg=8094.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.04%, sys=5.76%, ctx=54, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5515KiB/s (5647kB/s), 1379KiB/s-5319KiB/s (1412kB/s-5447kB/s), io=16.0MiB (16.8MB), run=2310-2971msec WRITE: bw=10.5MiB/s (10.0MB/s), 2757KiB/s-5319KiB/s (2823kB/s-5447kB/s), io=32.0MiB (33.6MB), run=2310-3061msec