== sanity test 398b: DIO and buffer IO race ============== 02:44:59 (1789454699) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.90561 s, 7.3 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=179126: Tue Sep 15 02:47:23 2026 read: IOPS=11, BW=47.8KiB/s (48.9kB/s)(5992KiB/125402msec) clat (usec): min=41, max=746887, avg=45095.01, stdev=34965.76 lat (usec): min=41, max=746888, avg=45096.72, stdev=34965.87 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 8848], 10.00th=[ 16450], 20.00th=[ 22414], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[154141], 99.50th=[183501], 99.90th=[252707], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 11, max= 103, per=24.68%, avg=47.14, stdev=19.69, samples=247 iops : min= 2, max= 25, avg=11.15, stdev= 4.95, samples=247 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(6296KiB/125402msec); 0 zone resets clat (usec): min=926, max=302298, avg=36439.76, stdev=36568.56 lat (usec): min=927, max=302299, avg=36445.59, stdev=36569.51 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1352], 10.00th=[ 2089], 20.00th=[ 4113], | 30.00th=[ 8094], 40.00th=[ 17433], 50.00th=[ 26870], 60.00th=[ 35390], | 70.00th=[ 49021], 80.00th=[ 63701], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[152044], 99.50th=[181404], 99.90th=[217056], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 136, per=25.17%, avg=50.34, stdev=21.52, samples=244 iops : min= 1, max= 34, avg=11.94, stdev= 5.40, samples=244 lat (usec) : 50=0.16%, 100=1.69%, 250=0.23%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.88%, 4=5.08%, 10=7.23%, 20=10.09%, 50=39.62% lat (msec) : 100=25.62%, 250=5.18%, 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=4.96%, ctx=6747, 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=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=179127: Tue Sep 15 02:47:23 2026 read: IOPS=12, BW=48.4KiB/s (49.5kB/s)(5940KiB/122826msec) clat (usec): min=37, max=300156, avg=44890.73, stdev=31759.45 lat (usec): min=37, max=300157, avg=44894.92, stdev=31759.38 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 10683], 10.00th=[ 15926], 20.00th=[ 22152], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 51643], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[166724], 99.50th=[210764], 99.90th=[265290], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=25.04%, avg=47.82, stdev=19.90, samples=242 iops : min= 1, max= 25, avg=11.31, stdev= 5.02, samples=242 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(6348KiB/122826msec); 0 zone resets clat (usec): min=1039, max=570325, avg=35052.47, stdev=38145.52 lat (usec): min=1040, max=570327, avg=35056.25, stdev=38145.61 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1385], 10.00th=[ 2057], 20.00th=[ 3851], | 30.00th=[ 7504], 40.00th=[ 16712], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 44303], 80.00th=[ 60556], 90.00th=[ 84411], 95.00th=[108528], | 99.00th=[149947], 99.50th=[175113], 99.90th=[291505], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 7, max= 141, per=25.52%, avg=51.04, stdev=22.54, samples=242 iops : min= 1, max= 35, avg=12.13, stdev= 5.67, samples=242 lat (usec) : 50=0.16%, 100=1.46%, 250=0.13%, 500=0.07%, 1000=0.07% lat (msec) : 2=4.92%, 4=5.76%, 10=7.06%, 20=11.33%, 50=39.71% lat (msec) : 100=23.86%, 250=5.31%, 500=0.13%, 750=0.03% cpu : usr=0.07%, sys=5.09%, ctx=6747, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179128: Tue Sep 15 02:47:23 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6028KiB/123926msec) clat (usec): min=29, max=737401, avg=45423.04, stdev=34637.23 lat (usec): min=29, max=737402, avg=45424.53, stdev=34637.34 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 11076], 10.00th=[ 16319], 20.00th=[ 22414], | 30.00th=[ 27395], 40.00th=[ 32375], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 53216], 80.00th=[ 65274], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[149947], 99.50th=[173016], 99.90th=[265290], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 5, max= 104, per=25.24%, avg=48.21, stdev=20.49, samples=245 iops : min= 1, max= 26, avg=11.41, stdev= 5.16, samples=245 write: IOPS=12, BW=50.5KiB/s (51.7kB/s)(6260KiB/123926msec); 0 zone resets clat (usec): min=962, max=271638, avg=35159.86, stdev=37002.49 lat (usec): min=964, max=271640, avg=35163.76, stdev=37003.59 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1270], 10.00th=[ 1713], 20.00th=[ 3621], | 30.00th=[ 7308], 40.00th=[ 15533], 50.00th=[ 25035], 60.00th=[ 33424], | 70.00th=[ 44303], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[162530], 99.50th=[179307], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 126, per=25.02%, avg=50.03, stdev=21.99, samples=245 iops : min= 1, max= 31, avg=11.87, stdev= 5.54, samples=245 lat (usec) : 50=0.20%, 100=1.40%, 250=0.23%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.99%, 4=4.75%, 10=6.97%, 20=10.29%, 50=40.20% lat (msec) : 100=24.25%, 250=5.44%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=4.92%, ctx=6716, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179129: Tue Sep 15 02:47:23 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(6052KiB/125449msec) clat (usec): min=35, max=277526, avg=45193.70, stdev=30580.88 lat (usec): min=35, max=277527, avg=45197.18, stdev=30579.63 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8848], 10.00th=[ 15926], 20.00th=[ 22414], | 30.00th=[ 27657], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 53740], 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[156238], 99.50th=[185598], 99.90th=[254804], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 95, per=25.23%, avg=48.19, stdev=18.55, samples=246 iops : min= 1, max= 23, avg=11.40, stdev= 4.67, samples=246 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6236KiB/125449msec); 0 zone resets clat (usec): min=1012, max=654750, avg=36262.95, stdev=40295.72 lat (usec): min=1014, max=654751, avg=36270.21, stdev=40298.47 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1336], 10.00th=[ 1991], 20.00th=[ 3851], | 30.00th=[ 7701], 40.00th=[ 16712], 50.00th=[ 25560], 60.00th=[ 35390], | 70.00th=[ 45876], 80.00th=[ 61080], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[164627], 99.50th=[210764], 99.90th=[267387], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 7, max= 110, per=24.72%, avg=49.44, stdev=21.34, samples=247 iops : min= 1, max= 27, avg=11.72, stdev= 5.34, samples=247 lat (usec) : 50=0.26%, 100=1.69%, 250=0.16%, 500=0.03%, 750=0.13% lat (msec) : 2=5.11%, 4=5.40%, 10=6.51%, 20=10.12%, 50=40.04% lat (msec) : 100=25.00%, 250=5.37%, 500=0.13%, 750=0.03% cpu : usr=0.07%, sys=4.81%, ctx=6851, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=191KiB/s (196kB/s), 47.8KiB/s-48.6KiB/s (48.9kB/s-49.8kB/s), io=23.4MiB (24.6MB), run=122826-125449msec WRITE: bw=200KiB/s (205kB/s), 49.7KiB/s-51.7KiB/s (50.9kB/s-52.9kB/s), io=24.6MiB (25.7MB), run=122826-125449msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179131: Tue Sep 15 02:48:00 2026 read: IOPS=9, BW=36.8KiB/s (37.7kB/s)(5992KiB/162806msec) clat (msec): min=4, max=758, avg=42.39, stdev=44.79 lat (msec): min=4, max=758, avg=42.39, stdev=44.79 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 60], 90.00th=[ 93], 95.00th=[ 129], | 99.00th=[ 213], 99.50th=[ 239], 99.90th=[ 292], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 143, per=25.31%, avg=37.20, stdev=25.83, samples=314 iops : min= 1, max= 35, avg= 8.63, stdev= 6.48, samples=314 write: IOPS=9, BW=38.7KiB/s (39.6kB/s)(6296KiB/162806msec); 0 zone resets clat (msec): min=10, max=307, avg=62.89, stdev=43.36 lat (msec): min=10, max=307, avg=62.89, stdev=43.36 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 60], | 70.00th=[ 74], 80.00th=[ 93], 90.00th=[ 120], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 249], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 7, max= 119, per=25.05%, avg=38.58, stdev=23.71, samples=318 iops : min= 1, max= 29, avg= 8.98, stdev= 5.95, samples=318 lat (msec) : 10=3.16%, 20=16.44%, 50=43.33%, 100=24.25%, 250=12.37% lat (msec) : 500=0.42%, 1000=0.03% cpu : usr=0.05%, sys=1.75%, ctx=4788, 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=179132: Tue Sep 15 02:48:00 2026 read: IOPS=9, BW=36.6KiB/s (37.5kB/s)(5940KiB/162394msec) clat (msec): min=5, max=594, avg=40.85, stdev=40.92 lat (msec): min=5, max=594, avg=40.85, stdev=40.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 87], 95.00th=[ 114], | 99.00th=[ 203], 99.50th=[ 230], 99.90th=[ 376], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 175, per=25.45%, avg=37.41, stdev=27.29, samples=309 iops : min= 1, max= 43, avg= 8.68, stdev= 6.85, samples=309 write: IOPS=9, BW=39.1KiB/s (40.0kB/s)(6348KiB/162394msec); 0 zone resets clat (msec): min=9, max=401, avg=63.88, stdev=45.68 lat (msec): min=9, max=401, avg=63.88, stdev=45.68 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 94], 90.00th=[ 126], 95.00th=[ 157], | 99.00th=[ 222], 99.50th=[ 266], 99.90th=[ 351], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 127, per=25.24%, avg=38.86, stdev=23.45, samples=318 iops : min= 1, max= 31, avg= 9.05, stdev= 5.87, samples=318 lat (msec) : 10=2.99%, 20=16.47%, 50=43.16%, 100=25.20%, 250=11.69% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.05%, sys=1.80%, ctx=4802, 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=179133: Tue Sep 15 02:48:00 2026 read: IOPS=9, BW=36.0KiB/s (37.9kB/s)(6028KiB/162922msec) clat (msec): min=5, max=374, avg=42.06, stdev=39.56 lat (msec): min=5, max=374, avg=42.06, stdev=39.56 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 89], 95.00th=[ 125], | 99.00th=[ 188], 99.50th=[ 239], 99.90th=[ 300], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 135, per=25.65%, avg=37.70, stdev=24.63, samples=311 iops : min= 1, max= 33, avg= 8.76, stdev= 6.17, samples=311 write: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6260KiB/162922msec); 0 zone resets clat (msec): min=10, max=600, avg=63.38, stdev=47.18 lat (msec): min=10, max=600, avg=63.38, stdev=47.18 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 74], 80.00th=[ 94], 90.00th=[ 124], 95.00th=[ 150], | 99.00th=[ 209], 99.50th=[ 292], 99.90th=[ 401], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 127, per=24.79%, avg=38.18, stdev=24.55, samples=319 iops : min= 1, max= 31, avg= 8.87, stdev= 6.15, samples=319 lat (msec) : 10=2.73%, 20=15.89%, 50=44.37%, 100=24.25%, 250=12.27% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.05%, sys=1.76%, ctx=4811, 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=179134: Tue Sep 15 02:48:00 2026 read: IOPS=9, BW=37.1KiB/s (38.0kB/s)(6052KiB/163076msec) clat (msec): min=5, max=296, avg=42.89, stdev=39.30 lat (msec): min=5, max=296, avg=42.89, stdev=39.30 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 65], 90.00th=[ 97], 95.00th=[ 123], | 99.00th=[ 190], 99.50th=[ 218], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 135, per=25.69%, avg=37.76, stdev=26.02, samples=311 iops : min= 1, max= 33, avg= 8.77, stdev= 6.53, samples=311 write: IOPS=9, BW=38.2KiB/s (39.2kB/s)(6236KiB/163076msec); 0 zone resets clat (msec): min=11, max=624, avg=62.78, stdev=45.34 lat (msec): min=11, max=624, avg=62.78, stdev=45.34 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 91], 90.00th=[ 122], 95.00th=[ 146], | 99.00th=[ 220], 99.50th=[ 245], 99.90th=[ 359], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 127, per=24.93%, avg=38.39, stdev=23.96, samples=315 iops : min= 1, max= 31, avg= 8.93, stdev= 6.01, samples=315 lat (msec) : 10=2.90%, 20=15.36%, 50=43.59%, 100=25.23%, 250=12.60% lat (msec) : 500=0.29%, 750=0.03% cpu : usr=0.05%, sys=1.88%, ctx=4910, 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=147KiB/s (151kB/s), 36.6KiB/s-37.1KiB/s (37.5kB/s-38.0kB/s), io=23.4MiB (24.6MB), run=162394-163076msec WRITE: bw=154KiB/s (158kB/s), 38.2KiB/s-39.1KiB/s (39.2kB/s-40.0kB/s), io=24.6MiB (25.7MB), run=162394-163076msec 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=179177: Tue Sep 15 02:48:43 2026 read: IOPS=11, BW=192KiB/s (196kB/s)(5920KiB/30900msec) clat (usec): min=38, max=177684, avg=44581.45, stdev=29849.57 lat (usec): min=39, max=177685, avg=44618.51, stdev=29835.40 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 15270], 20.00th=[ 23987], | 30.00th=[ 28443], 40.00th=[ 32900], 50.00th=[ 38011], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 64750], 90.00th=[ 88605], 95.00th=[106431], | 99.00th=[135267], 99.50th=[147850], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 63, max= 351, per=26.89%, avg=191.46, stdev=72.80, samples=61 iops : min= 3, max= 21, avg=11.18, stdev= 4.56, samples=61 write: IOPS=12, BW=206KiB/s (211kB/s)(6368KiB/30900msec); 0 zone resets clat (usec): min=1651, max=215065, avg=35661.07, stdev=39372.54 lat (usec): min=1654, max=215067, avg=35664.70, stdev=39372.12 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2180], 10.00th=[ 3163], 20.00th=[ 5407], | 30.00th=[ 7832], 40.00th=[ 11338], 50.00th=[ 20055], 60.00th=[ 30802], | 70.00th=[ 43779], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[114820], | 99.00th=[177210], 99.50th=[179307], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 63, max= 574, per=27.47%, avg=205.79, stdev=81.33, samples=61 iops : min= 3, max= 35, avg=12.08, stdev= 5.10, samples=61 lat (usec) : 50=0.39%, 100=3.26%, 250=0.13%, 500=0.26% lat (msec) : 2=1.82%, 4=5.86%, 10=11.98%, 20=8.72%, 50=39.06% lat (msec) : 100=21.48%, 250=7.03% cpu : usr=0.09%, sys=5.61%, ctx=1658, 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=179178: Tue Sep 15 02:48:43 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(5744KiB/33634msec) clat (usec): min=39, max=250019, avg=48133.56, stdev=34272.26 lat (usec): min=39, max=250020, avg=48135.05, stdev=34272.14 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 17171], 20.00th=[ 23200], | 30.00th=[ 28443], 40.00th=[ 34341], 50.00th=[ 42730], 60.00th=[ 49021], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[111674], | 99.00th=[166724], 99.50th=[193987], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 31, max= 383, per=23.75%, avg=169.12, stdev=72.23, samples=66 iops : min= 1, max= 23, avg= 9.79, stdev= 4.55, samples=66 write: IOPS=12, BW=195KiB/s (199kB/s)(6544KiB/33634msec); 0 zone resets clat (usec): min=1514, max=205249, avg=39855.01, stdev=39233.87 lat (usec): min=1516, max=205250, avg=39864.14, stdev=39234.48 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1893], 10.00th=[ 2868], 20.00th=[ 5800], | 30.00th=[ 11994], 40.00th=[ 20055], 50.00th=[ 27395], 60.00th=[ 36963], | 70.00th=[ 50070], 80.00th=[ 69731], 90.00th=[ 98042], 95.00th=[119014], | 99.00th=[164627], 99.50th=[166724], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 62, max= 447, per=25.75%, avg=192.83, stdev=89.19, samples=66 iops : min= 3, max= 27, avg=11.29, stdev= 5.63, samples=66 lat (usec) : 50=0.39%, 100=2.99%, 250=0.52%, 500=0.13% lat (msec) : 2=3.39%, 4=4.17%, 10=7.03%, 20=9.24%, 50=38.80% lat (msec) : 100=24.87%, 250=8.33%, 500=0.13% cpu : usr=0.08%, sys=5.31%, ctx=1657, 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=179179: Tue Sep 15 02:48:43 2026 read: IOPS=12, BW=192KiB/s (197kB/s)(6256KiB/32581msec) clat (usec): min=50, max=187571, avg=48754.47, stdev=32672.96 lat (usec): min=51, max=187587, avg=48755.87, stdev=32673.10 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 10945], 20.00th=[ 25822], | 30.00th=[ 31589], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 49546], | 70.00th=[ 61080], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[111674], | 99.00th=[158335], 99.50th=[173016], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 94, max= 351, per=27.02%, avg=192.37, stdev=68.24, samples=64 iops : min= 5, max= 21, avg=11.27, stdev= 4.30, samples=64 write: IOPS=11, BW=185KiB/s (190kB/s)(6032KiB/32581msec); 0 zone resets clat (usec): min=1487, max=190612, avg=35272.50, stdev=35083.63 lat (usec): min=1488, max=190616, avg=35276.07, stdev=35084.42 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2966], 10.00th=[ 3851], 20.00th=[ 5735], | 30.00th=[ 8160], 40.00th=[ 13698], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 45876], 80.00th=[ 63177], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[141558], 99.50th=[175113], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 31, max= 479, per=24.58%, avg=184.11, stdev=80.80, samples=64 iops : min= 1, max= 29, avg=10.73, stdev= 5.15, samples=64 lat (usec) : 100=4.43%, 250=0.39%, 750=0.13% lat (msec) : 2=1.43%, 4=3.78%, 10=11.72%, 20=8.07%, 50=36.72% lat (msec) : 100=26.95%, 250=6.38% cpu : usr=0.07%, sys=5.64%, ctx=1791, 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=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=179180: Tue Sep 15 02:48:43 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(6032KiB/32001msec) clat (usec): min=39, max=278831, avg=45307.09, stdev=35868.77 lat (usec): min=39, max=278832, avg=45308.33, stdev=35868.76 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 94], 20.00th=[ 19268], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 83362], 95.00th=[107480], | 99.00th=[183501], 99.50th=[238027], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 479, per=26.21%, avg=186.59, stdev=82.73, samples=63 iops : min= 1, max= 29, avg=10.89, stdev= 5.22, samples=63 write: IOPS=12, BW=195KiB/s (200kB/s)(6256KiB/32001msec); 0 zone resets clat (usec): min=1499, max=231761, avg=37440.80, stdev=40272.78 lat (usec): min=1501, max=231762, avg=37445.91, stdev=40273.71 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2180], 10.00th=[ 3687], 20.00th=[ 6063], | 30.00th=[ 8979], 40.00th=[ 15008], 50.00th=[ 22414], 60.00th=[ 33162], | 70.00th=[ 43254], 80.00th=[ 64750], 90.00th=[ 95945], 95.00th=[124257], | 99.00th=[175113], 99.50th=[200279], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 31, max= 542, per=26.06%, avg=195.16, stdev=92.69, samples=63 iops : min= 1, max= 33, avg=11.43, stdev= 5.83, samples=63 lat (usec) : 50=0.52%, 100=4.43%, 250=0.78%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.60%, 4=3.52%, 10=11.33%, 20=10.03%, 50=34.64% lat (msec) : 100=24.22%, 250=7.29%, 500=0.13% cpu : usr=0.05%, sys=5.26%, ctx=1670, 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=712KiB/s (729kB/s), 171KiB/s-192KiB/s (175kB/s-197kB/s), io=23.4MiB (24.5MB), run=30900-33634msec WRITE: bw=749KiB/s (767kB/s), 185KiB/s-206KiB/s (190kB/s-211kB/s), io=24.6MiB (25.8MB), run=30900-33634msec fio: pid=179184, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=179182: Tue Sep 15 02:48:54 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(5920KiB/43302msec) clat (msec): min=6, max=347, avg=45.05, stdev=45.02 lat (msec): min=6, max=347, avg=45.05, stdev=45.02 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 65], 90.00th=[ 100], 95.00th=[ 140], | 99.00th=[ 213], 99.50th=[ 271], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 448, per=26.69%, avg=135.85, stdev=99.77, samples=84 iops : min= 1, max= 28, avg= 7.71, stdev= 6.29, samples=84 write: IOPS=9, BW=147KiB/s (151kB/s)(6368KiB/43302msec); 0 zone resets clat (msec): min=10, max=340, avg=66.77, stdev=49.09 lat (msec): min=10, max=340, avg=66.77, stdev=49.09 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 81], 80.00th=[ 106], 90.00th=[ 138], 95.00th=[ 163], | 99.00th=[ 232], 99.50th=[ 288], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 509, per=27.60%, avg=149.06, stdev=101.75, samples=83 iops : min= 1, max= 31, avg= 8.54, stdev= 6.42, samples=83 lat (msec) : 10=2.47%, 20=16.54%, 50=41.80%, 100=23.31%, 250=15.36% lat (msec) : 500=0.52% cpu : usr=0.04%, sys=1.62%, ctx=1190, 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=179183: Tue Sep 15 02:48:54 2026 read: IOPS=8, BW=133KiB/s (136kB/s)(5744KiB/43195msec) clat (msec): min=6, max=280, avg=46.75, stdev=48.33 lat (msec): min=6, max=280, avg=46.75, stdev=48.33 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 67], 90.00th=[ 118], 95.00th=[ 150], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 512, per=26.73%, avg=136.07, stdev=101.59, samples=82 iops : min= 1, max= 32, avg= 7.73, stdev= 6.44, samples=82 write: IOPS=9, BW=151KiB/s (155kB/s)(6544KiB/43195msec); 0 zone resets clat (msec): min=12, max=292, avg=64.40, stdev=46.57 lat (msec): min=12, max=292, avg=64.40, stdev=46.56 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 57], | 70.00th=[ 73], 80.00th=[ 99], 90.00th=[ 130], 95.00th=[ 169], | 99.00th=[ 205], 99.50th=[ 247], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 510, per=28.12%, avg=151.83, stdev=102.61, samples=84 iops : min= 1, max= 31, avg= 8.71, stdev= 6.46, samples=84 lat (msec) : 10=2.73%, 20=14.32%, 50=45.96%, 100=20.83%, 250=15.36% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.72%, ctx=1193, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=179184: Tue Sep 15 02:48:54 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(4384KiB/37387msec) clat (msec): min=7, max=300, avg=55.37, stdev=47.95 lat (msec): min=7, max=300, avg=55.37, stdev=47.95 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 40], 60.00th=[ 46], | 70.00th=[ 60], 80.00th=[ 83], 90.00th=[ 121], 95.00th=[ 155], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 444, per=22.37%, avg=113.85, stdev=79.40, samples=73 iops : min= 1, max= 27, avg= 6.34, stdev= 5.00, samples=73 write: IOPS=7, BW=113KiB/s (116kB/s)(4240KiB/37387msec); 0 zone resets clat (msec): min=19, max=272, avg=83.46, stdev=52.36 lat (msec): min=19, max=272, avg=83.47, stdev=52.36 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 29], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 46], 40.00th=[ 58], 50.00th=[ 65], 60.00th=[ 87], | 70.00th=[ 100], 80.00th=[ 122], 90.00th=[ 161], 95.00th=[ 188], | 99.00th=[ 253], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 256, per=20.73%, avg=111.96, stdev=54.96, samples=72 iops : min= 1, max= 16, avg= 6.22, stdev= 3.51, samples=72 lat (msec) : 10=1.11%, 20=7.59%, 50=39.26%, 100=30.56%, 250=20.00% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.56%, ctx=807, 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=275,265,0,0 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=179185: Tue Sep 15 02:48:54 2026 read: IOPS=8, BW=141KiB/s (144kB/s)(6032KiB/42869msec) clat (msec): min=7, max=280, avg=45.64, stdev=44.70 lat (msec): min=7, max=280, avg=45.65, stdev=44.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 64], 90.00th=[ 109], 95.00th=[ 144], | 99.00th=[ 201], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 542, per=27.94%, avg=142.23, stdev=100.72, samples=82 iops : min= 1, max= 33, avg= 8.12, stdev= 6.32, samples=82 write: IOPS=9, BW=146KiB/s (149kB/s)(6256KiB/42869msec); 0 zone resets clat (msec): min=9, max=346, avg=65.37, stdev=46.35 lat (msec): min=9, max=346, avg=65.37, stdev=46.35 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 36], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 77], 80.00th=[ 106], 90.00th=[ 128], 95.00th=[ 159], | 99.00th=[ 211], 99.50th=[ 255], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 416, per=27.62%, avg=149.16, stdev=93.70, samples=81 iops : min= 1, max= 26, avg= 8.56, stdev= 5.92, samples=81 lat (msec) : 10=2.47%, 20=14.06%, 50=46.88%, 100=19.66%, 250=16.28% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.92%, ctx=1281, 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=510KiB/s (522kB/s), 117KiB/s-141KiB/s (120kB/s-144kB/s), io=21.6MiB (22.6MB), run=37387-43302msec WRITE: bw=541KiB/s (554kB/s), 113KiB/s-151KiB/s (116kB/s-155kB/s), io=22.9MiB (23.0MB), run=37387-43302msec 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=179197: Tue Sep 15 02:49:06 2026 read: IOPS=1, BW=1811KiB/s (1854kB/s)(7168KiB/3959msec) clat (msec): min=79, max=660, avg=253.02, stdev=241.34 lat (msec): min=79, max=660, avg=253.02, stdev=241.34 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 82], | 30.00th=[ 86], 40.00th=[ 86], 50.00th=[ 120], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 531], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1892, max= 5483, per=65.54%, avg=3139.33, stdev=2031.08, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1293KiB/s (1324kB/s)(5120KiB/3959msec); 0 zone resets clat (msec): min=131, max=718, avg=413.51, stdev=260.06 lat (msec): min=131, max=718, avg=414.04, stdev=259.89 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 609], 80.00th=[ 609], 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= 1370, max= 2048, per=27.74%, avg=1860.40, stdev=281.19, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=25.00%, 250=33.33%, 500=8.33%, 750=33.33% cpu : usr=0.03%, sys=6.72%, ctx=108, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179198: Tue Sep 15 02:49:06 2026 read: IOPS=0, BW=497KiB/s (509kB/s)(2048KiB/4119msec) clat (msec): min=72, max=818, avg=445.69, stdev=527.77 lat (msec): min=72, max=818, avg=445.69, stdev=527.76 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 73], 40.00th=[ 73], 50.00th=[ 73], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1398, max= 2043, per=35.92%, avg=1720.50, stdev=456.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2486KiB/s (2546kB/s)(10.0MiB/4119msec); 0 zone resets clat (msec): min=91, max=650, avg=313.67, stdev=200.17 lat (msec): min=91, max=650, avg=313.83, stdev=200.12 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 116], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 199], 60.00th=[ 359], | 70.00th=[ 435], 80.00th=[ 447], 90.00th=[ 550], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1892, max= 4196, per=41.43%, avg=2778.00, stdev=1138.26, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=5.93%, ctx=95, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179199: Tue Sep 15 02:49:06 2026 read: IOPS=1, BW=1496KiB/s (1532kB/s)(6144KiB/4106msec) clat (msec): min=114, max=675, avg=341.17, stdev=185.74 lat (msec): min=114, max=675, avg=341.17, stdev=185.74 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1917, max= 4087, per=52.69%, avg=2523.75, stdev=1043.93, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1496KiB/s (1532kB/s)(6144KiB/4106msec); 0 zone resets clat (msec): min=143, max=636, avg=337.32, stdev=190.62 lat (msec): min=143, max=636, avg=337.42, stdev=190.62 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 376], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1892, max= 4145, per=39.57%, avg=2653.67, stdev=1291.63, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=25.00%, 500=58.33%, 750=16.67% cpu : usr=0.02%, sys=5.04%, ctx=73, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179200: Tue Sep 15 02:49:06 2026 read: IOPS=1, BW=1198KiB/s (1226kB/s)(5120KiB/4275msec) clat (msec): min=57, max=942, avg=391.82, stdev=370.79 lat (msec): min=57, max=942, avg=391.83, stdev=370.79 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 83], 40.00th=[ 83], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 2043, max= 3835, per=55.16%, avg=2642.00, stdev=1033.17, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1677KiB/s (1717kB/s)(7168KiB/4275msec); 0 zone resets clat (msec): min=95, max=751, avg=314.91, stdev=215.60 lat (msec): min=95, max=751, avg=315.23, stdev=215.58 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 203], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 215], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 384], 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= 1917, max= 2848, per=32.55%, avg=2183.00, stdev=447.09, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=6.27%, ctx=124, 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=4791KiB/s (4906kB/s), 497KiB/s-1811KiB/s (509kB/s-1854kB/s), io=20.0MiB (20.0MB), run=3959-4275msec WRITE: bw=6707KiB/s (6868kB/s), 1293KiB/s-2486KiB/s (1324kB/s-2546kB/s), io=28.0MiB (29.4MB), run=3959-4275msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179202: Tue Sep 15 02:49:06 2026 read: IOPS=1, BW=1995KiB/s (2043kB/s)(7168KiB/3593msec) clat (msec): min=139, max=326, avg=228.07, stdev=82.54 lat (msec): min=139, max=326, avg=228.07, stdev=82.54 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 142], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 226], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 1910, max= 3676, per=51.01%, avg=2619.25, stdev=822.68, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1425KiB/s (1459kB/s)(5120KiB/3593msec); 0 zone resets clat (msec): min=189, max=883, avg=398.51, stdev=278.95 lat (msec): min=189, max=885, avg=398.92, stdev=279.65 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1838, max= 4063, per=36.22%, avg=2603.67, stdev=1264.33, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=50.00%, 1000=8.33% cpu : usr=0.00%, sys=21.58%, ctx=531, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179203: Tue Sep 15 02:49:06 2026 read: IOPS=0, BW=514KiB/s (526kB/s)(2048KiB/3988msec) clat (msec): min=93, max=651, avg=372.58, stdev=394.41 lat (msec): min=93, max=651, avg=372.58, stdev=394.41 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 94], 60.00th=[ 651], | 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= 1416, max= 2027, per=33.52%, avg=1721.50, stdev=432.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2568KiB/s (2629kB/s)(10.0MiB/3988msec); 0 zone resets clat (msec): min=82, max=936, avg=323.88, stdev=267.66 lat (msec): min=82, max=936, avg=324.04, stdev=267.76 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 155], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 201], 60.00th=[ 255], | 70.00th=[ 288], 80.00th=[ 330], 90.00th=[ 659], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1910, max= 6144, per=41.34%, avg=2971.83, stdev=1692.73, samples=6 iops : min= 1, max= 6, avg= 2.17, stdev= 2.04, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.05%, sys=19.19%, ctx=137, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179204: Tue Sep 15 02:49:06 2026 read: IOPS=1, BW=2010KiB/s (2059kB/s)(6144KiB/3056msec) clat (usec): min=403, max=242579, avg=64535.87, stdev=104001.62 lat (usec): min=404, max=242580, avg=64538.88, stdev=104003.05 clat percentiles (usec): | 1.00th=[ 404], 5.00th=[ 404], 10.00th=[ 404], 20.00th=[ 545], | 30.00th=[ 545], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[ 906], | 70.00th=[141558], 80.00th=[141558], 90.00th=[242222], 95.00th=[242222], | 99.00th=[242222], 99.50th=[242222], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 2027, max= 4063, per=64.33%, avg=3303.33, stdev=1111.99, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=2010KiB/s (2059kB/s)(6144KiB/3056msec); 0 zone resets clat (msec): min=159, max=712, avg=444.44, stdev=184.61 lat (msec): min=159, max=712, avg=444.54, stdev=184.52 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 485], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1838, max= 2778, per=30.16%, avg=2168.50, stdev=416.19, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33%, 750=16.67%, 1000=8.33% lat (msec) : 250=25.00%, 500=25.00%, 750=16.67% cpu : usr=0.03%, sys=15.65%, ctx=255, 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=179205: Tue Sep 15 02:49:06 2026 read: IOPS=1, BW=1357KiB/s (1390kB/s)(5120KiB/3772msec) clat (usec): min=511, max=536998, avg=200724.86, stdev=234129.64 lat (usec): min=512, max=537000, avg=200726.11, stdev=234129.75 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 553], 40.00th=[ 553], 50.00th=[123208], 60.00th=[123208], | 70.00th=[341836], 80.00th=[341836], 90.00th=[541066], 95.00th=[541066], | 99.00th=[541066], 99.50th=[541066], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 4055, max= 4087, per=79.28%, avg=4071.00, stdev=22.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1900KiB/s (1946kB/s)(7168KiB/3772msec); 0 zone resets clat (msec): min=132, max=788, avg=395.02, stdev=256.62 lat (msec): min=132, max=789, avg=395.23, stdev=256.67 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 300], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 659], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1402, max= 4063, per=33.86%, avg=2434.33, stdev=1427.21, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67% lat (msec) : 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=20.34%, 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=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=5135KiB/s (5259kB/s), 514KiB/s-2010KiB/s (526kB/s-2059kB/s), io=20.0MiB (20.0MB), run=3056-3988msec WRITE: bw=7190KiB/s (7362kB/s), 1425KiB/s-2568KiB/s (1459kB/s-2629kB/s), io=28.0MiB (29.4MB), run=3056-3988msec 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=179212: Tue Sep 15 02:49:20 2026 read: IOPS=1, BW=5103KiB/s (5225kB/s)(12.0MiB/2408msec) clat (msec): min=658, max=909, avg=770.80, stdev=127.95 lat (msec): min=658, max=909, avg=770.80, stdev=127.95 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7937, max= 8192, per=100.00%, avg=8064.50, stdev=180.31, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=17.16%, ctx=377, 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=179214: Tue Sep 15 02:49:20 2026 read: IOPS=0, BW=1538KiB/s (1575kB/s)(4096KiB/2663msec) clat (nsec): min=720343k, max=720343k, avg=720342723.00, stdev= 0.00 lat (nsec): min=720345k, max=720345k, avg=720345104.00, stdev= 0.00 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=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 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= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3076KiB/s (3150kB/s)(8192KiB/2663msec); 0 zone resets clat (msec): min=455, max=1369, avg=912.57, stdev=646.34 lat (msec): min=456, max=1370, avg=913.14, stdev=646.45 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 1368], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7937, max= 7937, per=83.15%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.24%, ctx=270, 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=179216: Tue Sep 15 02:49:20 2026 write: IOPS=0, BW=4061KiB/s (4158kB/s)(12.0MiB/3026msec); 0 zone resets clat (msec): min=501, max=1564, avg=972.82, stdev=541.36 lat (msec): min=501, max=1564, avg=973.29, stdev=541.32 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7937, max= 8126, per=84.14%, avg=8031.50, stdev=133.64, 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=0.10%, sys=5.39%, ctx=43, 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=179218: Tue Sep 15 02:49:20 2026 write: IOPS=0, BW=3579KiB/s (3665kB/s)(12.0MiB/3433msec); 0 zone resets clat (msec): min=198, max=2692, avg=1079.72, stdev=1398.86 lat (msec): min=199, max=2694, avg=1080.53, stdev=1399.49 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7098, max= 8143, per=79.84%, avg=7620.50, stdev=738.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.13%, ctx=106, 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=6152KiB/s (6300kB/s), 1538KiB/s-5103KiB/s (1575kB/s-5225kB/s), io=16.0MiB (16.8MB), run=2408-2663msec WRITE: bw=9545KiB/s (9774kB/s), 3076KiB/s-4061KiB/s (3150kB/s-4158kB/s), io=32.0MiB (33.6MB), run=2663-3433msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179213: Tue Sep 15 02:49:21 2026 read: IOPS=0, BW=3170KiB/s (3246kB/s)(12.0MiB/3876msec) clat (msec): min=169, max=2840, avg=1244.59, stdev=1409.37 lat (msec): min=169, max=2840, avg=1244.60, stdev=1409.37 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 2836], 80.00th=[ 2836], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 8000, max= 8078, per=100.00%, avg=8039.00, stdev=55.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.32%, ctx=63, 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=179215: Tue Sep 15 02:49:21 2026 read: IOPS=0, BW=1302KiB/s (1334kB/s)(4096KiB/3145msec) clat (nsec): min=877301k, max=877301k, avg=877300793.00, stdev= 0.00 lat (nsec): min=877302k, max=877302k, avg=877301888.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2605KiB/s (2667kB/s)(8192KiB/3145msec); 0 zone resets clat (msec): min=798, max=1293, avg=1045.61, stdev=350.06 lat (msec): min=798, max=1294, avg=1046.30, stdev=350.42 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 1301], | 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= 8192, max= 8192, per=91.78%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.06%, sys=5.63%, ctx=57, 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=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=179217: Tue Sep 15 02:49:21 2026 write: IOPS=0, BW=3347KiB/s (3428kB/s)(12.0MiB/3671msec); 0 zone resets clat (msec): min=277, max=2381, avg=1166.40, stdev=1089.34 lat (msec): min=278, max=2383, avg=1167.81, stdev=1090.05 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 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= 8159, max= 8159, per=91.41%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.83%, ctx=46, 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=179219: Tue Sep 15 02:49:21 2026 write: IOPS=0, BW=3362KiB/s (3443kB/s)(12.0MiB/3655msec); 0 zone resets clat (msec): min=193, max=2810, avg=1180.06, stdev=1422.28 lat (msec): min=194, max=2810, avg=1183.24, stdev=1420.47 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 194], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 2802], 80.00th=[ 2802], 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=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.41%, ctx=133, 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=4227KiB/s (4328kB/s), 1302KiB/s-3170KiB/s (1334kB/s-3246kB/s), io=16.0MiB (16.8MB), run=3145-3876msec WRITE: bw=8926KiB/s (9140kB/s), 2605KiB/s-3362KiB/s (2667kB/s-3443kB/s), io=32.0MiB (33.6MB), run=3145-3671msec