== sanity test 398b: DIO and buffer IO race ============== 17:17:30 (1788470250) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.71464 s, 7.5 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=180342: Thu Sep 3 17:20:44 2026 read: IOPS=8, BW=34.0KiB/s (35.8kB/s)(5992KiB/171330msec) clat (usec): min=40, max=425505, avg=63000.82, stdev=45672.89 lat (usec): min=40, max=425507, avg=63006.58, stdev=45676.29 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 10683], 10.00th=[ 19530], 20.00th=[ 28443], | 30.00th=[ 35914], 40.00th=[ 44303], 50.00th=[ 52691], 60.00th=[ 63701], | 70.00th=[ 73925], 80.00th=[ 92799], 90.00th=[117965], 95.00th=[147850], | 99.00th=[214959], 99.50th=[250610], 99.90th=[400557], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 7, max= 95, per=25.73%, avg=35.25, stdev=17.03, samples=329 iops : min= 1, max= 23, avg= 8.16, stdev= 4.29, samples=329 write: IOPS=9, BW=36.7KiB/s (37.6kB/s)(6296KiB/171330msec); 0 zone resets clat (usec): min=953, max=1354.1k, avg=48473.79, stdev=60139.44 lat (usec): min=953, max=1354.1k, avg=48491.19, stdev=60133.36 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1319], 10.00th=[ 1696], | 20.00th=[ 4555], 30.00th=[ 9896], 40.00th=[ 20579], | 50.00th=[ 32637], 60.00th=[ 45876], 70.00th=[ 61604], | 80.00th=[ 82314], 90.00th=[ 112722], 95.00th=[ 154141], | 99.00th=[ 219153], 99.50th=[ 246416], 99.90th=[ 371196], | 99.95th=[1350566], 99.99th=[1350566] bw ( KiB/s): min= 7, max= 126, per=25.75%, avg=37.08, stdev=20.88, samples=329 iops : min= 1, max= 31, avg= 8.60, stdev= 5.26, samples=329 lat (usec) : 50=0.07%, 100=1.76%, 250=0.26%, 500=0.13%, 1000=0.07% lat (msec) : 2=5.73%, 4=3.65%, 10=6.15%, 20=7.58%, 50=29.62% lat (msec) : 100=29.20%, 250=15.30%, 500=0.46%, 2000=0.03% cpu : usr=0.07%, sys=3.89%, ctx=6537, 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=180343: Thu Sep 3 17:20:44 2026 read: IOPS=8, BW=34.0KiB/s (34.9kB/s)(5940KiB/174506msec) clat (usec): min=37, max=1379.2k, avg=65424.55, stdev=57434.89 lat (usec): min=38, max=1379.2k, avg=65436.01, stdev=57430.74 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 15139], 10.00th=[ 21365], | 20.00th=[ 30016], 30.00th=[ 36963], 40.00th=[ 45351], | 50.00th=[ 53740], 60.00th=[ 64750], 70.00th=[ 76022], | 80.00th=[ 91751], 90.00th=[ 121111], 95.00th=[ 152044], | 99.00th=[ 258999], 99.50th=[ 291505], 99.90th=[ 379585], | 99.95th=[1384121], 99.99th=[1384121] bw ( KiB/s): min= 7, max= 111, per=24.73%, avg=33.88, stdev=15.88, samples=339 iops : min= 1, max= 27, avg= 7.81, stdev= 3.99, samples=339 write: IOPS=9, BW=36.4KiB/s (37.2kB/s)(6348KiB/174506msec); 0 zone resets clat (usec): min=999, max=362855, avg=48293.28, stdev=51733.15 lat (usec): min=1000, max=362856, avg=48296.71, stdev=51734.48 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1369], 10.00th=[ 2245], 20.00th=[ 4883], | 30.00th=[ 9503], 40.00th=[ 21103], 50.00th=[ 33424], 60.00th=[ 45351], | 70.00th=[ 60556], 80.00th=[ 82314], 90.00th=[119014], 95.00th=[156238], | 99.00th=[221250], 99.50th=[254804], 99.90th=[291505], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 127, per=25.38%, avg=36.54, stdev=20.29, samples=335 iops : min= 1, max= 31, avg= 8.47, stdev= 5.10, samples=335 lat (usec) : 50=0.13%, 100=1.33%, 250=0.10%, 750=0.03%, 1000=0.03% lat (msec) : 2=4.59%, 4=4.26%, 10=7.29%, 20=6.51%, 50=30.70% lat (msec) : 100=29.95%, 250=14.23%, 500=0.81%, 2000=0.03% cpu : usr=0.07%, sys=4.00%, ctx=6747, 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=180344: Thu Sep 3 17:20:44 2026 read: IOPS=8, BW=34.6KiB/s (35.4kB/s)(6028KiB/174269msec) clat (usec): min=34, max=1420.4k, avg=64860.40, stdev=55919.16 lat (usec): min=34, max=1420.4k, avg=64882.36, stdev=55915.97 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 10421], 10.00th=[ 20317], | 20.00th=[ 29492], 30.00th=[ 36963], 40.00th=[ 44303], | 50.00th=[ 54264], 60.00th=[ 66323], 70.00th=[ 77071], | 80.00th=[ 94897], 90.00th=[ 124257], 95.00th=[ 149947], | 99.00th=[ 212861], 99.50th=[ 233833], 99.90th=[ 274727], | 99.95th=[1417675], 99.99th=[1417675] bw ( KiB/s): min= 7, max= 135, per=25.01%, avg=34.27, stdev=17.08, samples=338 iops : min= 1, max= 33, avg= 7.90, stdev= 4.29, samples=338 write: IOPS=8, BW=35.9KiB/s (36.8kB/s)(6260KiB/174269msec); 0 zone resets clat (usec): min=933, max=364523, avg=48464.50, stdev=51506.77 lat (usec): min=933, max=364526, avg=48477.37, stdev=51508.28 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 2245], 20.00th=[ 5145], | 30.00th=[ 10552], 40.00th=[ 20055], 50.00th=[ 33817], 60.00th=[ 46400], | 70.00th=[ 61604], 80.00th=[ 83362], 90.00th=[120062], 95.00th=[156238], | 99.00th=[225444], 99.50th=[254804], 99.90th=[333448], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 135, per=25.00%, avg=36.00, stdev=18.91, samples=334 iops : min= 1, max= 33, avg= 8.34, stdev= 4.76, samples=334 lat (usec) : 50=0.20%, 100=1.69%, 250=0.10%, 500=0.07%, 750=0.13% lat (usec) : 1000=0.03% lat (msec) : 2=4.75%, 4=4.04%, 10=6.32%, 20=7.85%, 50=29.04% lat (msec) : 100=30.05%, 250=15.33%, 500=0.39%, 2000=0.03% cpu : usr=0.06%, sys=3.83%, ctx=6628, 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=180345: Thu Sep 3 17:20:44 2026 read: IOPS=8, BW=34.0KiB/s (35.8kB/s)(6052KiB/172983msec) clat (usec): min=35, max=1447.4k, avg=63652.96, stdev=56700.19 lat (usec): min=36, max=1447.4k, avg=63661.42, stdev=56699.01 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 9634], 10.00th=[ 19006], | 20.00th=[ 28967], 30.00th=[ 36963], 40.00th=[ 45351], | 50.00th=[ 53216], 60.00th=[ 63701], 70.00th=[ 72877], | 80.00th=[ 90702], 90.00th=[ 121111], 95.00th=[ 147850], | 99.00th=[ 208667], 99.50th=[ 267387], 99.90th=[ 408945], | 99.95th=[1451230], 99.99th=[1451230] bw ( KiB/s): min= 7, max= 95, per=25.64%, avg=35.13, stdev=17.12, samples=334 iops : min= 1, max= 23, avg= 8.12, stdev= 4.30, samples=334 write: IOPS=9, BW=36.0KiB/s (36.9kB/s)(6236KiB/172983msec); 0 zone resets clat (usec): min=939, max=369816, avg=48742.22, stdev=53231.60 lat (usec): min=940, max=369818, avg=48778.49, stdev=53233.77 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1401], 10.00th=[ 2147], 20.00th=[ 4883], | 30.00th=[ 9634], 40.00th=[ 18482], 50.00th=[ 33817], 60.00th=[ 46924], | 70.00th=[ 62653], 80.00th=[ 82314], 90.00th=[119014], 95.00th=[149947], | 99.00th=[231736], 99.50th=[299893], 99.90th=[358613], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 111, per=25.13%, avg=36.19, stdev=19.62, samples=334 iops : min= 1, max= 27, avg= 8.39, stdev= 4.96, samples=334 lat (usec) : 50=0.23%, 100=1.73%, 250=0.29%, 750=0.03%, 1000=0.03% lat (msec) : 2=4.65%, 4=3.91%, 10=7.00%, 20=8.50%, 50=27.86% lat (msec) : 100=30.63%, 250=14.49%, 500=0.62%, 2000=0.03% cpu : usr=0.06%, sys=3.74%, ctx=6460, 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), 34.0KiB/s-34.0KiB/s (34.9kB/s-35.8kB/s), io=23.4MiB (24.6MB), run=171330-174506msec WRITE: bw=144KiB/s (148kB/s), 35.9KiB/s-36.7KiB/s (36.8kB/s-37.6kB/s), io=24.6MiB (25.7MB), run=171330-174506msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180347: Thu Sep 3 17:21:21 2026 read: IOPS=7, BW=28.6KiB/s (29.3kB/s)(5992KiB/209553msec) clat (msec): min=5, max=1645, avg=55.20, stdev=69.25 lat (msec): min=5, max=1645, avg=55.21, stdev=69.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 42], | 70.00th=[ 59], 80.00th=[ 83], 90.00th=[ 126], 95.00th=[ 182], | 99.00th=[ 262], 99.50th=[ 288], 99.90th=[ 422], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 135, per=26.76%, avg=30.51, stdev=25.89, samples=379 iops : min= 1, max= 33, avg= 6.94, stdev= 6.54, samples=379 write: IOPS=7, BW=30.0KiB/s (30.8kB/s)(6296KiB/209553msec); 0 zone resets clat (msec): min=12, max=514, avg=80.44, stdev=71.13 lat (msec): min=12, max=514, avg=80.44, stdev=71.13 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 53], 60.00th=[ 71], | 70.00th=[ 93], 80.00th=[ 125], 90.00th=[ 178], 95.00th=[ 226], | 99.00th=[ 338], 99.50th=[ 376], 99.90th=[ 506], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 127, per=25.74%, avg=30.63, stdev=25.39, samples=396 iops : min= 1, max= 31, avg= 6.97, stdev= 6.39, samples=396 lat (msec) : 10=1.73%, 20=14.88%, 50=40.66%, 100=20.57%, 250=19.69% lat (msec) : 500=2.38%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.34%, ctx=4667, 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=180348: Thu Sep 3 17:21:21 2026 read: IOPS=7, BW=28.3KiB/s (28.0kB/s)(5940KiB/209856msec) clat (msec): min=6, max=1425, avg=56.19, stdev=67.74 lat (msec): min=6, max=1425, avg=56.20, stdev=67.74 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 44], | 70.00th=[ 58], 80.00th=[ 85], 90.00th=[ 132], 95.00th=[ 180], | 99.00th=[ 271], 99.50th=[ 317], 99.90th=[ 451], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 127, per=27.01%, avg=30.80, stdev=25.32, samples=373 iops : min= 1, max= 31, avg= 7.01, stdev= 6.38, samples=373 write: IOPS=7, BW=30.2KiB/s (30.0kB/s)(6348KiB/209856msec); 0 zone resets clat (msec): min=10, max=568, avg=79.50, stdev=68.66 lat (msec): min=10, max=568, avg=79.50, stdev=68.66 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 69], | 70.00th=[ 93], 80.00th=[ 125], 90.00th=[ 174], 95.00th=[ 224], | 99.00th=[ 330], 99.50th=[ 372], 99.90th=[ 447], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 126, per=25.45%, avg=30.29, stdev=24.82, samples=405 iops : min= 1, max= 31, avg= 6.88, stdev= 6.26, samples=405 lat (msec) : 10=1.76%, 20=14.81%, 50=40.53%, 100=21.48%, 250=18.98% lat (msec) : 500=2.38%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.37%, ctx=4718, 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=180349: Thu Sep 3 17:21:21 2026 read: IOPS=7, BW=28.7KiB/s (29.4kB/s)(6028KiB/210158msec) clat (msec): min=5, max=447, avg=55.11, stdev=56.17 lat (msec): min=5, max=447, avg=55.12, stdev=56.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 44], | 70.00th=[ 62], 80.00th=[ 86], 90.00th=[ 129], 95.00th=[ 174], | 99.00th=[ 271], 99.50th=[ 309], 99.90th=[ 384], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7, max= 135, per=26.86%, avg=30.63, stdev=25.48, samples=379 iops : min= 1, max= 33, avg= 6.97, stdev= 6.42, samples=379 write: IOPS=7, BW=29.8KiB/s (30.5kB/s)(6260KiB/210158msec); 0 zone resets clat (msec): min=11, max=1454, avg=81.08, stdev=79.28 lat (msec): min=11, max=1454, avg=81.08, stdev=79.28 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 52], 60.00th=[ 71], | 70.00th=[ 95], 80.00th=[ 127], 90.00th=[ 171], 95.00th=[ 224], | 99.00th=[ 351], 99.50th=[ 401], 99.90th=[ 575], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 111, per=25.05%, avg=29.81, stdev=25.28, samples=403 iops : min= 1, max= 27, avg= 6.76, stdev= 6.37, samples=403 lat (msec) : 10=1.99%, 20=14.84%, 50=39.88%, 100=21.09%, 250=19.76% lat (msec) : 500=2.31%, 750=0.10%, 2000=0.03% cpu : usr=0.06%, sys=1.39%, ctx=4784, 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=180350: Thu Sep 3 17:21:21 2026 read: IOPS=7, BW=28.9KiB/s (29.6kB/s)(6052KiB/209187msec) clat (msec): min=6, max=457, avg=55.55, stdev=56.87 lat (msec): min=6, max=457, avg=55.55, stdev=56.87 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 34], 60.00th=[ 44], | 70.00th=[ 59], 80.00th=[ 84], 90.00th=[ 130], 95.00th=[ 174], | 99.00th=[ 264], 99.50th=[ 321], 99.90th=[ 401], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 142, per=26.77%, avg=30.52, stdev=25.86, samples=384 iops : min= 1, max= 35, avg= 6.94, stdev= 6.51, samples=384 write: IOPS=7, BW=29.8KiB/s (30.5kB/s)(6236KiB/209187msec); 0 zone resets clat (msec): min=10, max=1440, avg=80.13, stdev=75.68 lat (msec): min=10, max=1440, avg=80.14, stdev=75.68 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 42], 50.00th=[ 54], 60.00th=[ 69], | 70.00th=[ 95], 80.00th=[ 126], 90.00th=[ 178], 95.00th=[ 220], | 99.00th=[ 326], 99.50th=[ 363], 99.90th=[ 435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 119, per=25.41%, avg=30.24, stdev=24.98, samples=399 iops : min= 1, max= 29, avg= 6.87, stdev= 6.30, samples=399 lat (msec) : 10=1.53%, 20=15.23%, 50=39.52%, 100=21.91%, 250=19.60% lat (msec) : 500=2.18%, 2000=0.03% cpu : usr=0.05%, sys=1.40%, ctx=4819, 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=114KiB/s (117kB/s), 28.3KiB/s-28.9KiB/s (28.0kB/s-29.6kB/s), io=23.4MiB (24.6MB), run=209187-210158msec WRITE: bw=120KiB/s (122kB/s), 29.8KiB/s-30.2KiB/s (30.5kB/s-30.0kB/s), io=24.6MiB (25.7MB), run=209187-210158msec 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=180401: Thu Sep 3 17:22:11 2026 read: IOPS=9, BW=152KiB/s (155kB/s)(5920KiB/38988msec) clat (usec): min=39, max=287534, avg=55216.31, stdev=37789.46 lat (usec): min=39, max=287535, avg=55217.79, stdev=37789.40 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 71], 10.00th=[ 16909], 20.00th=[ 28443], | 30.00th=[ 34341], 40.00th=[ 40633], 50.00th=[ 47973], 60.00th=[ 58983], | 70.00th=[ 67634], 80.00th=[ 78119], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[162530], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 313, per=24.31%, avg=149.25, stdev=61.16, samples=76 iops : min= 1, max= 19, avg= 8.49, stdev= 3.85, samples=76 write: IOPS=10, BW=163KiB/s (167kB/s)(6368KiB/38988msec); 0 zone resets clat (usec): min=1544, max=243703, avg=46327.04, stdev=44807.88 lat (usec): min=1546, max=243705, avg=46345.90, stdev=44831.29 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2704], 10.00th=[ 4359], 20.00th=[ 8094], | 30.00th=[ 13698], 40.00th=[ 23462], 50.00th=[ 32113], 60.00th=[ 43254], | 70.00th=[ 60031], 80.00th=[ 81265], 90.00th=[111674], 95.00th=[137364], | 99.00th=[202376], 99.50th=[217056], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 31, max= 447, per=25.11%, avg=162.22, stdev=78.56, samples=76 iops : min= 1, max= 27, avg= 9.30, stdev= 4.94, samples=76 lat (usec) : 50=0.52%, 100=2.86%, 250=0.52% lat (msec) : 2=1.30%, 4=3.12%, 10=8.72%, 20=7.42%, 50=34.64% lat (msec) : 100=29.43%, 250=11.20%, 500=0.26% cpu : usr=0.07%, sys=4.72%, ctx=1786, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180402: Thu Sep 3 17:22:11 2026 read: IOPS=9, BW=152KiB/s (156kB/s)(5744KiB/37758msec) clat (usec): min=38, max=197012, avg=57343.09, stdev=33914.78 lat (usec): min=38, max=197014, avg=57356.06, stdev=33912.96 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 78], 10.00th=[ 19792], 20.00th=[ 32113], | 30.00th=[ 39584], 40.00th=[ 45351], 50.00th=[ 52691], 60.00th=[ 63177], | 70.00th=[ 70779], 80.00th=[ 83362], 90.00th=[101188], 95.00th=[114820], | 99.00th=[179307], 99.50th=[183501], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 286, per=24.54%, avg=150.68, stdev=54.48, samples=74 iops : min= 1, max= 17, avg= 8.58, stdev= 3.47, samples=74 write: IOPS=10, BW=173KiB/s (177kB/s)(6544KiB/37758msec); 0 zone resets clat (usec): min=1448, max=264422, avg=41564.20, stdev=41316.61 lat (usec): min=1449, max=264424, avg=41567.46, stdev=41316.75 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 3785], 10.00th=[ 5014], 20.00th=[ 7373], | 30.00th=[ 11863], 40.00th=[ 20841], 50.00th=[ 31065], 60.00th=[ 39584], | 70.00th=[ 51119], 80.00th=[ 65799], 90.00th=[ 95945], 95.00th=[122160], | 99.00th=[185598], 99.50th=[233833], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 476, per=26.56%, avg=171.57, stdev=82.51, samples=74 iops : min= 1, max= 29, avg= 9.89, stdev= 5.22, samples=74 lat (usec) : 50=0.26%, 100=2.73%, 250=0.65%, 750=0.13%, 1000=0.13% lat (msec) : 2=0.65%, 4=2.21%, 10=11.33%, 20=7.16%, 50=33.07% lat (msec) : 100=32.16%, 250=9.24%, 500=0.26% cpu : usr=0.07%, sys=4.97%, ctx=1794, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180403: Thu Sep 3 17:22:11 2026 read: IOPS=10, BW=164KiB/s (168kB/s)(6256KiB/38121msec) clat (usec): min=47, max=245891, avg=56142.54, stdev=38094.93 lat (usec): min=48, max=245892, avg=56144.90, stdev=38094.66 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 105], 10.00th=[ 17957], 20.00th=[ 29230], | 30.00th=[ 35914], 40.00th=[ 43779], 50.00th=[ 47449], 60.00th=[ 55837], | 70.00th=[ 66847], 80.00th=[ 80217], 90.00th=[ 98042], 95.00th=[124257], | 99.00th=[204473], 99.50th=[212861], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 319, per=26.70%, avg=163.95, stdev=59.23, samples=75 iops : min= 1, max= 19, avg= 9.41, stdev= 3.76, samples=75 write: IOPS=9, BW=158KiB/s (162kB/s)(6032KiB/38121msec); 0 zone resets clat (usec): min=1454, max=210694, avg=42526.21, stdev=42130.76 lat (usec): min=1457, max=210697, avg=42528.68, stdev=42130.78 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2671], 10.00th=[ 3785], 20.00th=[ 6456], | 30.00th=[ 10552], 40.00th=[ 16909], 50.00th=[ 30802], 60.00th=[ 41681], | 70.00th=[ 57934], 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[129500], | 99.00th=[187696], 99.50th=[202376], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 408, per=24.13%, avg=155.87, stdev=77.55, samples=75 iops : min= 1, max= 25, avg= 8.91, stdev= 4.91, samples=75 lat (usec) : 50=0.13%, 100=2.34%, 250=0.91%, 500=0.13% lat (msec) : 2=1.56%, 4=3.65%, 10=8.98%, 20=7.94%, 50=34.11% lat (msec) : 100=30.73%, 250=9.51% cpu : usr=0.04%, sys=4.66%, ctx=1738, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180404: Thu Sep 3 17:22:11 2026 read: IOPS=10, BW=161KiB/s (165kB/s)(6032KiB/37455msec) clat (usec): min=51, max=221096, avg=55802.10, stdev=36976.57 lat (usec): min=53, max=221097, avg=55805.15, stdev=36975.71 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 69], 10.00th=[ 125], 20.00th=[ 29492], | 30.00th=[ 35914], 40.00th=[ 44303], 50.00th=[ 51119], 60.00th=[ 60031], | 70.00th=[ 69731], 80.00th=[ 79168], 90.00th=[104334], 95.00th=[126354], | 99.00th=[181404], 99.50th=[208667], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 31, max= 319, per=25.94%, avg=159.27, stdev=58.37, samples=73 iops : min= 1, max= 19, avg= 9.12, stdev= 3.67, samples=73 write: IOPS=10, BW=167KiB/s (171kB/s)(6256KiB/37455msec); 0 zone resets clat (usec): min=1411, max=219622, avg=41595.41, stdev=41661.03 lat (usec): min=1414, max=219625, avg=41598.30, stdev=41661.19 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2343], 10.00th=[ 4080], 20.00th=[ 7046], | 30.00th=[ 11076], 40.00th=[ 18220], 50.00th=[ 29492], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[101188], 95.00th=[125305], | 99.00th=[189793], 99.50th=[198181], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 351, per=25.52%, avg=164.85, stdev=72.88, samples=73 iops : min= 1, max= 21, avg= 9.48, stdev= 4.64, samples=73 lat (usec) : 100=4.17%, 250=1.17%, 500=0.26%, 1000=0.13% lat (msec) : 2=1.82%, 4=3.39%, 10=9.11%, 20=7.55%, 50=30.73% lat (msec) : 100=30.34%, 250=11.33% cpu : usr=0.08%, sys=4.94%, ctx=1769, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=614KiB/s (629kB/s), 152KiB/s-164KiB/s (155kB/s-168kB/s), io=23.4MiB (24.5MB), run=37455-38988msec WRITE: bw=646KiB/s (662kB/s), 158KiB/s-173KiB/s (162kB/s-177kB/s), io=24.6MiB (25.8MB), run=37455-38988msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180406: Thu Sep 3 17:22:23 2026 read: IOPS=7, BW=119KiB/s (122kB/s)(5920KiB/49890msec) clat (msec): min=8, max=371, avg=53.00, stdev=50.18 lat (msec): min=8, max=371, avg=53.00, stdev=50.18 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 73], 90.00th=[ 112], 95.00th=[ 159], | 99.00th=[ 251], 99.50th=[ 284], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 446, per=26.36%, avg=123.91, stdev=88.47, samples=93 iops : min= 1, max= 27, avg= 7.00, stdev= 5.55, samples=93 write: IOPS=7, BW=128KiB/s (131kB/s)(6368KiB/49890msec); 0 zone resets clat (msec): min=15, max=306, avg=75.86, stdev=53.52 lat (msec): min=15, max=306, avg=75.86, stdev=53.53 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 69], | 70.00th=[ 88], 80.00th=[ 116], 90.00th=[ 161], 95.00th=[ 182], | 99.00th=[ 253], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 352, per=26.06%, avg=128.75, stdev=83.55, samples=97 iops : min= 1, max= 22, avg= 7.29, stdev= 5.25, samples=97 lat (msec) : 10=0.65%, 20=10.42%, 50=42.84%, 100=26.30%, 250=18.75% lat (msec) : 500=1.04% cpu : usr=0.04%, sys=1.49%, ctx=1192, 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=180407: Thu Sep 3 17:22:23 2026 read: IOPS=7, BW=113KiB/s (115kB/s)(5744KiB/50932msec) clat (msec): min=7, max=275, avg=53.73, stdev=49.87 lat (msec): min=7, max=275, avg=53.74, stdev=49.89 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 55], 80.00th=[ 78], 90.00th=[ 118], 95.00th=[ 171], | 99.00th=[ 239], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 29, max= 447, per=26.00%, avg=122.19, stdev=82.24, samples=91 iops : min= 1, max= 27, avg= 6.86, stdev= 5.16, samples=91 write: IOPS=8, BW=128KiB/s (132kB/s)(6544KiB/50932msec); 0 zone resets clat (msec): min=15, max=318, avg=77.17, stdev=55.80 lat (msec): min=15, max=318, avg=77.17, stdev=55.80 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 90], 80.00th=[ 114], 90.00th=[ 153], 95.00th=[ 190], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 416, per=25.70%, avg=126.97, stdev=83.80, samples=100 iops : min= 1, max= 26, avg= 7.18, stdev= 5.26, samples=100 lat (msec) : 10=1.43%, 20=9.64%, 50=42.45%, 100=26.43%, 250=18.36% lat (msec) : 500=1.69% cpu : usr=0.04%, sys=1.64%, ctx=1222, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180408: Thu Sep 3 17:22:23 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(6256KiB/49761msec) clat (msec): min=7, max=283, avg=52.96, stdev=49.07 lat (msec): min=7, max=283, avg=52.96, stdev=49.07 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 81], 90.00th=[ 116], 95.00th=[ 178], | 99.00th=[ 232], 99.50th=[ 255], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 574, per=27.39%, avg=128.75, stdev=100.51, samples=96 iops : min= 1, max= 35, avg= 7.29, stdev= 6.28, samples=96 write: IOPS=7, BW=121KiB/s (124kB/s)(6032KiB/49761msec); 0 zone resets clat (msec): min=16, max=302, avg=76.87, stdev=54.94 lat (msec): min=16, max=302, avg=76.88, stdev=54.94 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 56], 60.00th=[ 71], | 70.00th=[ 93], 80.00th=[ 111], 90.00th=[ 153], 95.00th=[ 205], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 352, per=24.85%, avg=122.74, stdev=76.49, samples=96 iops : min= 1, max= 22, avg= 6.92, stdev= 4.81, samples=96 lat (msec) : 10=0.78%, 20=10.68%, 50=43.10%, 100=25.91%, 250=18.23% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.58%, ctx=1231, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180409: Thu Sep 3 17:22:23 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(6032KiB/50152msec) clat (msec): min=8, max=276, avg=55.31, stdev=49.86 lat (msec): min=8, max=276, avg=55.32, stdev=49.86 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 84], 90.00th=[ 128], 95.00th=[ 163], | 99.00th=[ 253], 99.50th=[ 257], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 416, per=26.48%, avg=124.45, stdev=81.11, samples=95 iops : min= 1, max= 26, avg= 7.00, stdev= 5.10, samples=95 write: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/50152msec); 0 zone resets clat (msec): min=13, max=299, avg=74.68, stdev=50.42 lat (msec): min=13, max=299, avg=74.69, stdev=50.42 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 71], | 70.00th=[ 88], 80.00th=[ 111], 90.00th=[ 150], 95.00th=[ 184], | 99.00th=[ 232], 99.50th=[ 253], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 414, per=25.51%, avg=126.00, stdev=84.12, samples=98 iops : min= 1, max= 25, avg= 7.12, stdev= 5.31, samples=98 lat (msec) : 10=0.39%, 20=9.38%, 50=42.97%, 100=27.21%, 250=19.01% lat (msec) : 500=1.04% cpu : usr=0.04%, sys=1.47%, ctx=1133, 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=470KiB/s (482kB/s), 113KiB/s-126KiB/s (115kB/s-129kB/s), io=23.4MiB (24.5MB), run=49761-50932msec WRITE: bw=495KiB/s (507kB/s), 121KiB/s-128KiB/s (124kB/s-132kB/s), io=24.6MiB (25.8MB), run=49761-50932msec 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=180429: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=819KiB/s (839kB/s)(7168KiB/8747msec) clat (usec): min=539, max=3879.3k, avg=1042722.22, stdev=1678180.17 lat (usec): min=540, max=3879.4k, avg=1042723.69, stdev=1678180.50 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], | 20.00th=[ 709], 30.00th=[ 1483], 40.00th=[ 1483], | 50.00th=[ 173016], 60.00th=[ 177210], 70.00th=[ 177210], | 80.00th=[3070231], 90.00th=[3875537], 95.00th=[3875537], | 99.00th=[3875537], 99.50th=[3875537], 99.90th=[3875537], | 99.95th=[3875537], 99.99th=[3875537] bw ( KiB/s): min= 1924, max= 6131, per=100.00%, avg=3007.50, stdev=2083.04, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=0, BW=585KiB/s (599kB/s)(5120KiB/8747msec); 0 zone resets clat (msec): min=136, max=613, avg=288.76, stdev=193.29 lat (msec): min=136, max=613, avg=289.29, stdev=193.13 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 2048, max= 4087, per=100.00%, avg=3407.33, stdev=1177.22, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 250=33.33%, 500=16.67%, 750=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=9.09%, ctx=996, 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=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=180430: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=228KiB/s (234kB/s)(2048KiB/8979msec) clat (msec): min=2, max=211, avg=107.02, stdev=147.94 lat (msec): min=2, max=211, avg=107.03, stdev=147.94 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 3], 40.00th=[ 3], 50.00th=[ 3], 60.00th=[ 211], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 211], 95.00th=[ 211], | 99.00th=[ 211], 99.50th=[ 211], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 1643, max= 2048, per=80.94%, avg=1845.50, stdev=286.38, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1140KiB/s (1168kB/s)(10.0MiB/8979msec); 0 zone resets clat (msec): min=118, max=3454, avg=875.99, stdev=1202.89 lat (msec): min=118, max=3454, avg=876.29, stdev=1202.76 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 121], | 30.00th=[ 163], 40.00th=[ 309], 50.00th=[ 351], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 609], 90.00th=[ 2802], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 2011, max= 6131, per=95.88%, avg=3061.33, stdev=1712.82, samples=6 iops : min= 1, max= 5, avg= 2.33, stdev= 1.51, samples=6 lat (msec) : 4=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, >=2000=16.67% cpu : usr=0.02%, sys=8.72%, ctx=170, 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=180431: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=713KiB/s (730kB/s)(6144KiB/8614msec) clat (usec): min=695, max=482709, avg=220725.69, stdev=194556.37 lat (usec): min=696, max=482710, avg=220727.11, stdev=194556.19 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 5669], | 30.00th=[ 5669], 40.00th=[208667], 50.00th=[208667], 60.00th=[248513], | 70.00th=[379585], 80.00th=[379585], 90.00th=[484443], 95.00th=[484443], | 99.00th=[484443], 99.50th=[484443], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 2048, max= 4096, per=100.00%, avg=3389.00, stdev=1161.91, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 write: IOPS=0, BW=713KiB/s (730kB/s)(6144KiB/8614msec); 0 zone resets clat (msec): min=207, max=3271, avg=1214.26, stdev=1379.23 lat (msec): min=207, max=3271, avg=1214.44, stdev=1379.23 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 527], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 2043, max= 3605, per=76.29%, avg=2436.00, stdev=779.34, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, >=2000=16.67% cpu : usr=0.01%, sys=7.71%, ctx=216, 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=180432: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=579KiB/s (593kB/s)(5120KiB/8843msec) clat (usec): min=559, max=238451, avg=104656.09, stdev=103056.94 lat (usec): min=560, max=238453, avg=104658.16, stdev=103057.33 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 4686], 40.00th=[ 4686], 50.00th=[114820], 60.00th=[114820], | 70.00th=[164627], 80.00th=[164627], 90.00th=[238027], 95.00th=[238027], | 99.00th=[238027], 99.50th=[238027], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 2011, max= 6144, per=100.00%, avg=4077.50, stdev=2922.47, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=0, BW=811KiB/s (830kB/s)(7168KiB/8843msec); 0 zone resets clat (msec): min=212, max=3370, avg=1185.51, stdev=1302.10 lat (msec): min=213, max=3371, avg=1185.82, stdev=1301.97 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 228], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 523], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 2702], 90.00th=[ 3373], 95.00th=[ 3373], | 99.00th=[ 3373], 99.50th=[ 3373], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 1376, max= 4087, per=72.16%, avg=2304.00, stdev=1034.99, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 250=41.67%, 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=16.67% cpu : usr=0.02%, sys=6.73%, ctx=156, 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=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=2281KiB/s (2336kB/s), 228KiB/s-819KiB/s (234kB/s-839kB/s), io=20.0MiB (20.0MB), run=8614-8979msec WRITE: bw=3193KiB/s (3270kB/s), 585KiB/s-1140KiB/s (599kB/s-1168kB/s), io=28.0MiB (29.4MB), run=8614-8979msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180424: Thu Sep 3 17:22:45 2026 read: IOPS=1, BW=1269KiB/s (1299kB/s)(7168KiB/5649msec) clat (msec): min=108, max=2807, avg=611.24, stdev=974.88 lat (msec): min=108, max=2807, avg=611.25, stdev=974.88 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 136], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 279], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 447], 90.00th=[ 2802], 95.00th=[ 2802], | 99.00th=[ 2802], 99.50th=[ 2802], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 2027, max= 3968, per=100.00%, avg=2706.00, stdev=913.90, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=906KiB/s (928kB/s)(5120KiB/5649msec); 0 zone resets clat (msec): min=77, max=397, avg=254.14, stdev=131.22 lat (msec): min=77, max=397, avg=254.30, stdev=131.23 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 230], 60.00th=[ 230], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 2027, max= 4079, per=91.57%, avg=2715.00, stdev=1181.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, >=2000=8.33% cpu : usr=0.02%, sys=4.43%, ctx=103, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180425: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=224KiB/s (229kB/s)(2048KiB/9155msec) clat (msec): min=131, max=214, avg=173.17, stdev=58.79 lat (msec): min=131, max=214, avg=173.17, stdev=58.79 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 132], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 215], 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= 1398, max= 2035, per=81.04%, avg=1716.50, stdev=450.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1119KiB/s (1145kB/s)(10.0MiB/9155msec); 0 zone resets clat (msec): min=158, max=3201, avg=872.94, stdev=1108.69 lat (msec): min=158, max=3201, avg=873.34, stdev=1108.59 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 430], 60.00th=[ 439], | 70.00th=[ 498], 80.00th=[ 885], 90.00th=[ 2635], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 1398, max= 4063, per=84.67%, avg=2510.43, stdev=1054.59, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=50.00%, 500=25.00%, 1000=8.33%, >=2000=16.67% cpu : usr=0.04%, sys=2.56%, ctx=105, 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=180426: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=635KiB/s (651kB/s)(6144KiB/9669msec) clat (msec): min=98, max=720, avg=355.02, stdev=238.58 lat (msec): min=98, max=720, avg=355.02, stdev=238.58 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 103], | 30.00th=[ 103], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 397], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 2039, max= 4063, per=100.00%, avg=2546.00, stdev=1011.34, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=635KiB/s (651kB/s)(6144KiB/9669msec); 0 zone resets clat (msec): min=159, max=3582, avg=1237.25, stdev=1447.88 lat (msec): min=159, max=3582, avg=1237.39, stdev=1447.87 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 518], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 3574], 95.00th=[ 3574], | 99.00th=[ 3574], 99.50th=[ 3574], 99.90th=[ 3574], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 1984, max= 2852, per=73.88%, avg=2190.60, stdev=370.51, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, >=2000=16.67% cpu : usr=0.00%, sys=3.99%, ctx=162, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180427: Thu Sep 3 17:22:45 2026 read: IOPS=0, BW=570KiB/s (584kB/s)(5120KiB/8981msec) clat (msec): min=191, max=466, avg=290.25, stdev=109.08 lat (msec): min=191, max=466, avg=290.25, stdev=109.08 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 2039, max= 4039, per=100.00%, avg=2707.00, stdev=1153.55, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=798KiB/s (817kB/s)(7168KiB/8981msec); 0 zone resets clat (msec): min=121, max=3117, avg=1070.38, stdev=1250.12 lat (msec): min=121, max=3117, avg=1070.50, stdev=1250.13 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 142], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 558], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 2567], 90.00th=[ 3104], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 2019, max= 4096, per=82.37%, avg=2442.40, stdev=924.42, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, 1000=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=2.00%, ctx=63, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2118KiB/s (2169kB/s), 224KiB/s-1269KiB/s (229kB/s-1299kB/s), io=20.0MiB (20.0MB), run=5649-9669msec WRITE: bw=2965KiB/s (3037kB/s), 635KiB/s-1119KiB/s (651kB/s-1145kB/s), io=28.0MiB (29.4MB), run=5649-9669msec 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=180442: Thu Sep 3 17:23:00 2026 read: IOPS=0, BW=3853KiB/s (3946kB/s)(12.0MiB/3189msec) clat (msec): min=651, max=1378, avg=1042.99, stdev=366.68 lat (msec): min=651, max=1378, avg=1042.99, stdev=366.68 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7557, max= 7846, per=100.00%, avg=7701.50, stdev=204.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.61%, ctx=54, 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=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=180445: Thu Sep 3 17:23:00 2026 read: IOPS=0, BW=947KiB/s (969kB/s)(4096KiB/4327msec) clat (nsec): min=2303.4M, max=2303.4M, avg=2303405611.00, stdev= 0.00 lat (nsec): min=2303.4M, max=2303.4M, avg=2303407816.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2299], 5.00th=[ 2299], 10.00th=[ 2299], 20.00th=[ 2299], | 30.00th=[ 2299], 40.00th=[ 2299], 50.00th=[ 2299], 60.00th=[ 2299], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7846, max= 7846, per=100.00%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1893KiB/s (1939kB/s)(8192KiB/4327msec); 0 zone resets clat (msec): min=775, max=1102, avg=939.10, stdev=230.78 lat (msec): min=779, max=1102, avg=941.03, stdev=228.67 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] 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 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.54%, ctx=68, 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=180447: Thu Sep 3 17:23:00 2026 write: IOPS=0, BW=3128KiB/s (3203kB/s)(12.0MiB/3929msec); 0 zone resets clat (msec): min=364, max=1713, avg=1250.09, stdev=767.39 lat (msec): min=364, max=1717, avg=1251.94, stdev=768.71 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 1670], 50.00th=[ 1670], 60.00th=[ 1670], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 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) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.72%, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=180448: Thu Sep 3 17:23:00 2026 write: IOPS=0, BW=3136KiB/s (3212kB/s)(12.0MiB/3918msec); 0 zone resets clat (msec): min=732, max=2066, avg=1232.59, stdev=726.97 lat (msec): min=733, max=2067, avg=1233.86, stdev=727.03 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 2072], 80.00th=[ 2072], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 8094, max= 8159, per=100.00%, avg=8126.50, stdev=45.96, 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=3.09%, ctx=50, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3786KiB/s (3877kB/s), 947KiB/s-3853KiB/s (969kB/s-3946kB/s), io=16.0MiB (16.8MB), run=3189-4327msec WRITE: bw=7573KiB/s (7755kB/s), 1893KiB/s-3136KiB/s (1939kB/s-3212kB/s), io=32.0MiB (33.6MB), run=3918-4327msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180441: Thu Sep 3 17:23:00 2026 read: IOPS=0, BW=3966KiB/s (4062kB/s)(12.0MiB/3098msec) clat (msec): min=926, max=1089, avg=989.35, stdev=87.84 lat (msec): min=926, max=1089, avg=989.35, stdev=87.84 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7627, max= 8175, per=100.00%, avg=7901.00, stdev=387.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=10.56%, ctx=407, 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=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=180443: Thu Sep 3 17:23:00 2026 read: IOPS=0, BW=1037KiB/s (1062kB/s)(4096KiB/3948msec) clat (nsec): min=1032.9M, max=1032.9M, avg=1032911954.00, stdev= 0.00 lat (nsec): min=1032.9M, max=1032.9M, avg=1032914470.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1036], 5.00th=[ 1036], 10.00th=[ 1036], 20.00th=[ 1036], | 30.00th=[ 1036], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7641, max= 7641, per=100.00%, avg=7641.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2075KiB/s (2125kB/s)(8192KiB/3948msec); 0 zone resets clat (msec): min=720, max=2137, avg=1429.04, stdev=1002.21 lat (msec): min=721, max=2138, avg=1429.65, stdev=1002.06 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 2140], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.46%, ctx=169, 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=180444: Thu Sep 3 17:23:00 2026 write: IOPS=0, BW=2657KiB/s (2721kB/s)(12.0MiB/4625msec); 0 zone resets clat (msec): min=273, max=3267, avg=1448.85, stdev=1597.09 lat (msec): min=274, max=3267, avg=1449.68, stdev=1596.97 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.16%, ctx=68, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=180446: Thu Sep 3 17:23:00 2026 write: IOPS=0, BW=3399KiB/s (3481kB/s)(12.0MiB/3615msec); 0 zone resets clat (msec): min=277, max=2618, avg=1177.32, stdev=1261.22 lat (msec): min=280, max=2620, avg=1179.28, stdev=1261.10 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7380, max= 8078, per=100.00%, avg=7729.00, stdev=493.56, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=3.57%, ctx=67, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4150KiB/s (4250kB/s), 1037KiB/s-3966KiB/s (1062kB/s-4062kB/s), io=16.0MiB (16.8MB), run=3098-3948msec WRITE: bw=7085KiB/s (7255kB/s), 2075KiB/s-3399KiB/s (2125kB/s-3481kB/s), io=32.0MiB (33.6MB), run=3615-4625msec