== sanity test 398b: DIO and buffer IO race ============== 21:49:03 (1786412943) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.17611 s, 7.0 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=179419: Mon Aug 10 21:52:10 2026 read: IOPS=9, BW=37.3KiB/s (38.2kB/s)(5992KiB/160462msec) clat (usec): min=42, max=1363.3k, avg=59977.51, stdev=52595.25 lat (usec): min=42, max=1363.3k, avg=59991.71, stdev=52637.70 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 14877], 10.00th=[ 21890], | 20.00th=[ 28705], 30.00th=[ 35914], 40.00th=[ 42730], | 50.00th=[ 50070], 60.00th=[ 58459], 70.00th=[ 70779], | 80.00th=[ 83362], 90.00th=[ 109577], 95.00th=[ 133694], | 99.00th=[ 206570], 99.50th=[ 263193], 99.90th=[ 387974], | 99.95th=[1367344], 99.99th=[1367344] bw ( KiB/s): min= 6, max= 87, per=25.51%, avg=37.24, stdev=16.07, samples=311 iops : min= 1, max= 21, avg= 8.64, stdev= 4.05, samples=311 write: IOPS=9, BW=39.2KiB/s (40.2kB/s)(6296KiB/160462msec); 0 zone resets clat (usec): min=880, max=386939, avg=44353.04, stdev=46705.01 lat (usec): min=881, max=386941, avg=44363.32, stdev=46717.50 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1549], 10.00th=[ 2278], 20.00th=[ 5932], | 30.00th=[ 11207], 40.00th=[ 21103], 50.00th=[ 32113], 60.00th=[ 42730], | 70.00th=[ 54264], 80.00th=[ 74974], 90.00th=[106431], 95.00th=[131597], | 99.00th=[221250], 99.50th=[250610], 99.90th=[375391], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 7, max= 125, per=25.82%, avg=39.50, stdev=19.99, samples=308 iops : min= 1, max= 31, avg= 9.21, stdev= 5.05, samples=308 lat (usec) : 50=0.03%, 100=1.33%, 250=0.29%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=4.52%, 4=3.35%, 10=6.87%, 20=7.13%, 50=35.09% lat (msec) : 100=28.91%, 250=11.78%, 500=0.46%, 2000=0.03% cpu : usr=0.08%, sys=4.82%, ctx=6630, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179422: Mon Aug 10 21:52:10 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(5940KiB/162996msec) clat (usec): min=47, max=528223, avg=60713.50, stdev=42161.93 lat (usec): min=49, max=528225, avg=60746.52, stdev=42191.74 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 15401], 10.00th=[ 22152], 20.00th=[ 30278], | 30.00th=[ 38011], 40.00th=[ 44827], 50.00th=[ 52691], 60.00th=[ 61080], | 70.00th=[ 69731], 80.00th=[ 85459], 90.00th=[106431], 95.00th=[135267], | 99.00th=[204473], 99.50th=[231736], 99.90th=[425722], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 6, max= 87, per=25.24%, avg=36.85, stdev=16.53, samples=312 iops : min= 1, max= 21, avg= 8.54, stdev= 4.17, samples=312 write: IOPS=9, BW=38.9KiB/s (39.9kB/s)(6348KiB/162996msec); 0 zone resets clat (usec): min=931, max=1248.9k, avg=45354.99, stdev=56323.24 lat (usec): min=933, max=1248.9k, avg=45362.43, stdev=56323.73 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1532], 10.00th=[ 2114], | 20.00th=[ 6063], 30.00th=[ 11207], 40.00th=[ 21365], | 50.00th=[ 32637], 60.00th=[ 42206], 70.00th=[ 54789], | 80.00th=[ 74974], 90.00th=[ 107480], 95.00th=[ 137364], | 99.00th=[ 208667], 99.50th=[ 240124], 99.90th=[ 534774], | 99.95th=[1249903], 99.99th=[1249903] bw ( KiB/s): min= 7, max= 102, per=25.62%, avg=39.19, stdev=18.51, samples=313 iops : min= 1, max= 25, avg= 9.13, stdev= 4.68, samples=313 lat (usec) : 50=0.03%, 100=1.30%, 250=0.16%, 750=0.03%, 1000=0.10% lat (msec) : 2=4.88%, 4=2.90%, 10=7.06%, 20=7.36%, 50=33.20% lat (msec) : 100=30.76%, 250=11.88%, 500=0.23%, 750=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.82%, ctx=6625, 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=179424: Mon Aug 10 21:52:10 2026 read: IOPS=9, BW=36.7KiB/s (37.6kB/s)(6028KiB/164059msec) clat (usec): min=35, max=1299.2k, avg=61255.99, stdev=54698.30 lat (usec): min=35, max=1299.2k, avg=61263.06, stdev=54696.20 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 10552], 10.00th=[ 20841], | 20.00th=[ 29230], 30.00th=[ 36439], 40.00th=[ 43254], | 50.00th=[ 51643], 60.00th=[ 61080], 70.00th=[ 70779], | 80.00th=[ 84411], 90.00th=[ 107480], 95.00th=[ 137364], | 99.00th=[ 225444], 99.50th=[ 283116], 99.90th=[ 467665], | 99.95th=[1300235], 99.99th=[1300235] bw ( KiB/s): min= 6, max= 87, per=24.86%, avg=36.29, stdev=16.09, samples=320 iops : min= 1, max= 21, avg= 8.40, stdev= 4.07, samples=320 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6260KiB/164059msec); 0 zone resets clat (usec): min=924, max=365216, avg=45385.77, stdev=46726.91 lat (usec): min=951, max=365217, avg=45390.92, stdev=46727.50 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1516], 10.00th=[ 2147], 20.00th=[ 6128], | 30.00th=[ 11863], 40.00th=[ 23200], 50.00th=[ 32113], 60.00th=[ 41681], | 70.00th=[ 57410], 80.00th=[ 77071], 90.00th=[109577], 95.00th=[141558], | 99.00th=[202376], 99.50th=[231736], 99.90th=[350225], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 7, max= 117, per=24.62%, avg=37.67, stdev=19.68, samples=320 iops : min= 1, max= 29, avg= 8.75, stdev= 4.97, samples=320 lat (usec) : 50=0.07%, 100=1.82%, 250=0.29%, 750=0.03%, 1000=0.07% lat (msec) : 2=4.82%, 4=2.77%, 10=6.38%, 20=7.06%, 50=33.63% lat (msec) : 100=30.50%, 250=12.08%, 500=0.46%, 2000=0.03% cpu : usr=0.07%, sys=4.62%, ctx=6570, 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=179425: Mon Aug 10 21:52:10 2026 read: IOPS=9, BW=37.1KiB/s (37.0kB/s)(6052KiB/163238msec) clat (usec): min=34, max=416552, avg=59721.54, stdev=40887.52 lat (usec): min=35, max=416553, avg=59729.17, stdev=40886.62 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 10421], 10.00th=[ 20317], 20.00th=[ 29230], | 30.00th=[ 36963], 40.00th=[ 44303], 50.00th=[ 51643], 60.00th=[ 59507], | 70.00th=[ 71828], 80.00th=[ 85459], 90.00th=[108528], 95.00th=[132645], | 99.00th=[198181], 99.50th=[238027], 99.90th=[350225], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 87, per=25.71%, avg=37.53, stdev=16.89, samples=313 iops : min= 1, max= 21, avg= 8.71, stdev= 4.26, samples=313 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6236KiB/163238msec); 0 zone resets clat (usec): min=993, max=1274.4k, avg=46240.71, stdev=58071.83 lat (usec): min=994, max=1274.4k, avg=46243.21, stdev=58071.75 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1582], 10.00th=[ 2311], | 20.00th=[ 5669], 30.00th=[ 10945], 40.00th=[ 21365], | 50.00th=[ 32113], 60.00th=[ 43254], 70.00th=[ 55837], | 80.00th=[ 74974], 90.00th=[ 110625], 95.00th=[ 145753], | 99.00th=[ 204473], 99.50th=[ 256902], 99.90th=[ 599786], | 99.95th=[1266680], 99.99th=[1266680] bw ( KiB/s): min= 7, max= 112, per=25.01%, avg=38.27, stdev=18.97, samples=316 iops : min= 1, max= 28, avg= 8.90, stdev= 4.80, samples=316 lat (usec) : 50=0.16%, 100=1.73%, 250=0.16%, 500=0.16%, 1000=0.03% lat (msec) : 2=4.23%, 4=3.87%, 10=6.61%, 20=7.71%, 50=32.45% lat (msec) : 100=30.44%, 250=12.01%, 500=0.36%, 750=0.03%, 2000=0.03% cpu : usr=0.08%, sys=4.71%, ctx=6649, 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=146KiB/s (150kB/s), 36.4KiB/s-37.3KiB/s (37.3kB/s-38.2kB/s), io=23.4MiB (24.6MB), run=160462-164059msec WRITE: bw=153KiB/s (157kB/s), 38.2KiB/s-39.2KiB/s (39.1kB/s-40.2kB/s), io=24.6MiB (25.7MB), run=160462-164059msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179418: Mon Aug 10 21:52:55 2026 read: IOPS=7, BW=28.5KiB/s (29.2kB/s)(5992KiB/210040msec) clat (msec): min=4, max=1362, avg=55.11, stdev=64.39 lat (msec): min=4, max=1362, avg=55.12, stdev=64.39 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 57], 80.00th=[ 78], 90.00th=[ 124], 95.00th=[ 167], | 99.00th=[ 271], 99.50th=[ 326], 99.90th=[ 600], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 126, per=26.16%, avg=29.82, stdev=23.17, samples=389 iops : min= 1, max= 31, avg= 6.80, stdev= 5.84, samples=389 write: IOPS=7, BW=29.0KiB/s (30.7kB/s)(6296KiB/210040msec); 0 zone resets clat (msec): min=11, max=498, avg=80.58, stdev=62.47 lat (msec): min=11, max=498, avg=80.58, stdev=62.47 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 41], 40.00th=[ 50], 50.00th=[ 60], 60.00th=[ 73], | 70.00th=[ 92], 80.00th=[ 121], 90.00th=[ 169], 95.00th=[ 209], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 468], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 7, max= 127, per=25.69%, avg=30.58, stdev=21.21, samples=398 iops : min= 1, max= 31, avg= 6.99, stdev= 5.35, samples=398 lat (msec) : 10=1.17%, 20=11.75%, 50=39.94%, 100=26.63%, 250=18.62% lat (msec) : 500=1.82%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=1.95%, ctx=5324, 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=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=179420: Mon Aug 10 21:52:55 2026 read: IOPS=7, BW=28.4KiB/s (29.1kB/s)(5940KiB/209262msec) clat (msec): min=5, max=1263, avg=56.09, stdev=62.70 lat (msec): min=5, max=1263, avg=56.09, stdev=62.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 45], | 70.00th=[ 58], 80.00th=[ 82], 90.00th=[ 125], 95.00th=[ 165], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 600], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 126, per=26.38%, avg=30.07, stdev=22.55, samples=382 iops : min= 1, max= 31, avg= 6.86, stdev= 5.70, samples=382 write: IOPS=7, BW=30.3KiB/s (31.1kB/s)(6348KiB/209262msec); 0 zone resets clat (msec): min=10, max=607, avg=78.93, stdev=62.86 lat (msec): min=10, max=607, avg=78.94, stdev=62.86 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 47], 50.00th=[ 58], 60.00th=[ 73], | 70.00th=[ 92], 80.00th=[ 118], 90.00th=[ 159], 95.00th=[ 207], | 99.00th=[ 300], 99.50th=[ 342], 99.90th=[ 489], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 143, per=25.83%, avg=30.73, stdev=21.63, samples=398 iops : min= 1, max= 35, avg= 7.03, stdev= 5.45, samples=398 lat (msec) : 10=1.27%, 20=11.56%, 50=40.20%, 100=25.88%, 250=19.24% lat (msec) : 500=1.76%, 750=0.07%, 2000=0.03% cpu : usr=0.06%, sys=1.96%, ctx=5328, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179421: Mon Aug 10 21:52:55 2026 read: IOPS=7, BW=29.1KiB/s (29.8kB/s)(6028KiB/207219msec) clat (msec): min=5, max=480, avg=54.43, stdev=51.59 lat (msec): min=5, max=480, avg=54.43, stdev=51.59 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 47], | 70.00th=[ 58], 80.00th=[ 79], 90.00th=[ 121], 95.00th=[ 163], | 99.00th=[ 255], 99.50th=[ 292], 99.90th=[ 347], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 5, max= 135, per=26.80%, avg=30.55, stdev=21.95, samples=381 iops : min= 1, max= 33, avg= 6.98, stdev= 5.53, samples=381 write: IOPS=7, BW=30.2KiB/s (30.9kB/s)(6260KiB/207219msec); 0 zone resets clat (msec): min=12, max=1283, avg=79.55, stdev=69.67 lat (msec): min=12, max=1283, avg=79.55, stdev=69.67 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 71], | 70.00th=[ 89], 80.00th=[ 115], 90.00th=[ 159], 95.00th=[ 203], | 99.00th=[ 296], 99.50th=[ 422], 99.90th=[ 625], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 118, per=25.57%, avg=30.43, stdev=21.44, samples=396 iops : min= 1, max= 29, avg= 6.95, stdev= 5.41, samples=396 lat (msec) : 10=1.24%, 20=10.94%, 50=40.56%, 100=27.41%, 250=18.29% lat (msec) : 500=1.46%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.90%, ctx=5139, 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=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=179423: Mon Aug 10 21:52:55 2026 read: IOPS=7, BW=28.9KiB/s (29.5kB/s)(6052KiB/209765msec) clat (msec): min=6, max=518, avg=54.68, stdev=51.33 lat (msec): min=6, max=518, avg=54.68, stdev=51.33 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 30], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 59], 80.00th=[ 81], 90.00th=[ 123], 95.00th=[ 159], | 99.00th=[ 234], 99.50th=[ 309], 99.90th=[ 422], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 5, max= 111, per=26.77%, avg=30.51, stdev=21.26, samples=383 iops : min= 1, max= 27, avg= 6.98, stdev= 5.35, samples=383 write: IOPS=7, BW=29.7KiB/s (30.4kB/s)(6236KiB/209765msec); 0 zone resets clat (msec): min=10, max=1279, avg=81.04, stdev=69.91 lat (msec): min=10, max=1279, avg=81.04, stdev=69.91 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 50], 50.00th=[ 60], 60.00th=[ 74], | 70.00th=[ 96], 80.00th=[ 122], 90.00th=[ 161], 95.00th=[ 194], | 99.00th=[ 300], 99.50th=[ 363], 99.90th=[ 667], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 135, per=25.28%, avg=30.08, stdev=21.56, samples=399 iops : min= 1, max= 33, avg= 6.86, stdev= 5.44, samples=399 lat (msec) : 10=1.01%, 20=10.87%, 50=40.07%, 100=26.43%, 250=20.08% lat (msec) : 500=1.40%, 750=0.10%, 2000=0.03% cpu : usr=0.05%, sys=1.87%, ctx=5221, 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=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), 28.4KiB/s-29.1KiB/s (29.1kB/s-29.8kB/s), io=23.4MiB (24.6MB), run=207219-210040msec WRITE: bw=120KiB/s (123kB/s), 29.7KiB/s-30.3KiB/s (30.4kB/s-31.1kB/s), io=24.6MiB (25.7MB), run=207219-210040msec 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=179482: Mon Aug 10 21:53:43 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5920KiB/34984msec) clat (usec): min=41, max=275713, avg=48684.08, stdev=33052.38 lat (usec): min=42, max=275714, avg=48710.14, stdev=33070.93 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 91], 10.00th=[ 16450], 20.00th=[ 25560], | 30.00th=[ 31327], 40.00th=[ 39060], 50.00th=[ 46400], 60.00th=[ 52167], | 70.00th=[ 58983], 80.00th=[ 66323], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[175113], 99.50th=[242222], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 383, per=24.61%, avg=167.81, stdev=66.19, samples=68 iops : min= 1, max= 23, avg= 9.68, stdev= 4.14, samples=68 write: IOPS=11, BW=182KiB/s (186kB/s)(6368KiB/34984msec); 0 zone resets clat (usec): min=1577, max=226442, avg=42208.41, stdev=37333.93 lat (usec): min=1580, max=226447, avg=42240.25, stdev=37348.79 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 5], 20.00th=[ 10], | 30.00th=[ 17], 40.00th=[ 25], 50.00th=[ 33], 60.00th=[ 44], | 70.00th=[ 54], 80.00th=[ 69], 90.00th=[ 93], 95.00th=[ 123], | 99.00th=[ 167], 99.50th=[ 197], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 63, max= 381, per=25.35%, avg=181.76, stdev=72.85, samples=68 iops : min= 3, max= 23, avg=10.57, stdev= 4.59, samples=68 lat (usec) : 50=0.13%, 100=2.47%, 250=0.78%, 500=0.26% lat (msec) : 2=0.52%, 4=4.30%, 10=6.51%, 20=8.98%, 50=37.89% lat (msec) : 100=31.77%, 250=6.25%, 500=0.13% cpu : usr=0.08%, sys=6.29%, ctx=1831, 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=179483: Mon Aug 10 21:53:43 2026 read: IOPS=10, BW=164KiB/s (167kB/s)(5744KiB/35120msec) clat (usec): min=32, max=170053, avg=50421.61, stdev=28668.25 lat (usec): min=32, max=170054, avg=50431.59, stdev=28665.26 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 147], 10.00th=[ 21890], 20.00th=[ 28705], | 30.00th=[ 33817], 40.00th=[ 39584], 50.00th=[ 45351], 60.00th=[ 53216], | 70.00th=[ 61080], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[104334], | 99.00th=[143655], 99.50th=[168821], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 22, max= 346, per=24.02%, avg=163.79, stdev=71.09, samples=68 iops : min= 1, max= 21, avg= 9.43, stdev= 4.49, samples=68 write: IOPS=11, BW=186KiB/s (191kB/s)(6544KiB/35120msec); 0 zone resets clat (usec): min=1429, max=200580, avg=40354.80, stdev=35670.33 lat (usec): min=1432, max=200583, avg=40370.92, stdev=35662.38 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 3097], 10.00th=[ 4686], 20.00th=[ 8356], | 30.00th=[ 14484], 40.00th=[ 22152], 50.00th=[ 29492], 60.00th=[ 40633], | 70.00th=[ 54789], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[106431], | 99.00th=[158335], 99.50th=[160433], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 409, per=25.95%, avg=186.04, stdev=80.22, samples=68 iops : min= 1, max= 25, avg=10.84, stdev= 5.06, samples=68 lat (usec) : 50=0.26%, 100=1.82%, 250=0.26%, 500=0.13% lat (msec) : 2=0.65%, 4=3.78%, 10=7.68%, 20=9.38%, 50=37.89% lat (msec) : 100=32.29%, 250=5.86% cpu : usr=0.09%, sys=5.80%, ctx=1841, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179484: Mon Aug 10 21:53:43 2026 read: IOPS=11, BW=183KiB/s (188kB/s)(6256KiB/34110msec) clat (usec): min=61, max=238271, avg=50768.97, stdev=31432.19 lat (usec): min=63, max=238275, avg=50772.97, stdev=31430.76 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 89], 10.00th=[ 20055], 20.00th=[ 27919], | 30.00th=[ 34341], 40.00th=[ 40109], 50.00th=[ 47449], 60.00th=[ 53216], | 70.00th=[ 60556], 80.00th=[ 72877], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[156238], 99.50th=[231736], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 23, max= 350, per=26.99%, avg=184.09, stdev=65.40, samples=67 iops : min= 1, max= 21, avg=10.72, stdev= 4.10, samples=67 write: IOPS=11, BW=177KiB/s (181kB/s)(6032KiB/34110msec); 0 zone resets clat (usec): min=1636, max=197288, avg=36988.00, stdev=34900.80 lat (usec): min=1639, max=197291, avg=37020.24, stdev=34883.03 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 2474], 10.00th=[ 4080], 20.00th=[ 8291], | 30.00th=[ 14353], 40.00th=[ 20579], 50.00th=[ 26870], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 57934], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[156238], 99.50th=[193987], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 383, per=25.01%, avg=179.35, stdev=81.43, samples=66 iops : min= 1, max= 23, avg=10.42, stdev= 5.15, samples=66 lat (usec) : 100=2.86%, 250=0.39% lat (msec) : 2=0.65%, 4=4.17%, 10=7.29%, 20=8.72%, 50=41.15% lat (msec) : 100=29.04%, 250=5.73% cpu : usr=0.09%, sys=6.52%, ctx=1874, 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=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=179485: Mon Aug 10 21:53:43 2026 read: IOPS=11, BW=178KiB/s (183kB/s)(6032KiB/33822msec) clat (usec): min=41, max=226230, avg=48786.92, stdev=31936.00 lat (usec): min=41, max=226233, avg=48789.09, stdev=31936.26 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 78], 10.00th=[ 135], 20.00th=[ 25822], | 30.00th=[ 32637], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 51119], | 70.00th=[ 60556], 80.00th=[ 72877], 90.00th=[ 89654], 95.00th=[105382], | 99.00th=[154141], 99.50th=[173016], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 63, max= 347, per=26.42%, avg=180.22, stdev=64.86, samples=65 iops : min= 3, max= 21, avg=10.46, stdev= 4.04, samples=65 write: IOPS=11, BW=185KiB/s (189kB/s)(6256KiB/33822msec); 0 zone resets clat (usec): min=1775, max=215971, avg=38323.38, stdev=36364.12 lat (usec): min=1778, max=215974, avg=38332.19, stdev=36364.04 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2671], 10.00th=[ 4293], 20.00th=[ 7898], | 30.00th=[ 13173], 40.00th=[ 17957], 50.00th=[ 29492], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 66323], 90.00th=[ 80217], 95.00th=[117965], | 99.00th=[152044], 99.50th=[204473], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 448, per=25.87%, avg=185.47, stdev=79.87, samples=66 iops : min= 1, max= 28, avg=10.80, stdev= 5.08, samples=66 lat (usec) : 50=0.13%, 100=4.56%, 250=0.26% lat (msec) : 2=0.78%, 4=4.04%, 10=8.72%, 20=9.77%, 50=36.20% lat (msec) : 100=28.52%, 250=7.03% cpu : usr=0.10%, sys=6.43%, ctx=1858, 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=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=682KiB/s (698kB/s), 164KiB/s-183KiB/s (167kB/s-188kB/s), io=23.4MiB (24.5MB), run=33822-35120msec WRITE: bw=718KiB/s (735kB/s), 177KiB/s-186KiB/s (181kB/s-191kB/s), io=24.6MiB (25.8MB), run=33822-35120msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179478: Mon Aug 10 21:53:54 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5920KiB/45957msec) clat (msec): min=7, max=209, avg=49.73, stdev=38.89 lat (msec): min=7, max=209, avg=49.74, stdev=38.88 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 75], 90.00th=[ 113], 95.00th=[ 138], | 99.00th=[ 174], 99.50th=[ 209], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 31, max= 416, per=25.30%, avg=130.03, stdev=76.29, samples=88 iops : min= 1, max= 26, avg= 7.39, stdev= 4.84, samples=88 write: IOPS=8, BW=139KiB/s (142kB/s)(6368KiB/45957msec); 0 zone resets clat (msec): min=21, max=280, avg=68.98, stdev=40.47 lat (msec): min=21, max=280, avg=68.99, stdev=40.47 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 66], | 70.00th=[ 82], 80.00th=[ 100], 90.00th=[ 126], 95.00th=[ 153], | 99.00th=[ 213], 99.50th=[ 249], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 316, per=25.49%, avg=137.90, stdev=68.53, samples=90 iops : min= 1, max= 19, avg= 7.88, stdev= 4.36, samples=90 lat (msec) : 10=0.78%, 20=8.07%, 50=44.66%, 100=30.73%, 250=15.63% lat (msec) : 500=0.13% cpu : usr=0.07%, sys=2.39%, ctx=1216, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179479: Mon Aug 10 21:53:54 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(5744KiB/46571msec) clat (msec): min=9, max=241, avg=49.28, stdev=42.17 lat (msec): min=9, max=241, avg=49.28, stdev=42.17 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 69], 90.00th=[ 110], 95.00th=[ 146], | 99.00th=[ 201], 99.50th=[ 226], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 22, max= 445, per=24.57%, avg=126.28, stdev=86.71, samples=88 iops : min= 1, max= 27, avg= 7.15, stdev= 5.47, samples=88 write: IOPS=8, BW=141KiB/s (144kB/s)(6544KiB/46571msec); 0 zone resets clat (msec): min=18, max=327, avg=69.86, stdev=47.55 lat (msec): min=18, max=327, avg=69.87, stdev=47.55 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 81], 80.00th=[ 101], 90.00th=[ 138], 95.00th=[ 169], | 99.00th=[ 230], 99.50th=[ 259], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 384, per=25.94%, avg=140.36, stdev=84.39, samples=90 iops : min= 1, max= 24, avg= 8.03, stdev= 5.35, samples=90 lat (msec) : 10=0.39%, 20=9.64%, 50=45.57%, 100=28.13%, 250=15.89% lat (msec) : 500=0.39% cpu : usr=0.07%, sys=2.35%, ctx=1301, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179480: Mon Aug 10 21:53:54 2026 read: IOPS=8, BW=134KiB/s (138kB/s)(6256KiB/46520msec) clat (msec): min=8, max=217, avg=49.28, stdev=40.00 lat (msec): min=8, max=217, avg=49.28, stdev=40.00 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 56], 80.00th=[ 73], 90.00th=[ 104], 95.00th=[ 136], | 99.00th=[ 194], 99.50th=[ 199], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 415, per=26.57%, avg=136.57, stdev=93.41, samples=90 iops : min= 1, max= 25, avg= 7.79, stdev= 5.90, samples=90 write: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46520msec); 0 zone resets clat (msec): min=14, max=337, avg=71.22, stdev=47.26 lat (msec): min=14, max=337, avg=71.22, stdev=47.26 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 68], | 70.00th=[ 82], 80.00th=[ 106], 90.00th=[ 140], 95.00th=[ 159], | 99.00th=[ 230], 99.50th=[ 264], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 318, per=23.55%, avg=127.40, stdev=71.68, samples=91 iops : min= 1, max= 19, avg= 7.22, stdev= 4.54, samples=91 lat (msec) : 10=0.52%, 20=10.29%, 50=47.14%, 100=25.78%, 250=16.02% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=2.27%, ctx=1291, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179481: Mon Aug 10 21:53:54 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(6032KiB/45797msec) clat (msec): min=7, max=262, avg=47.40, stdev=35.91 lat (msec): min=7, max=262, avg=47.40, stdev=35.91 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 68], 90.00th=[ 99], 95.00th=[ 132], | 99.00th=[ 157], 99.50th=[ 169], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 31, max= 406, per=26.32%, avg=135.30, stdev=78.89, samples=87 iops : min= 1, max= 25, avg= 7.71, stdev= 4.97, samples=87 write: IOPS=8, BW=137KiB/s (140kB/s)(6256KiB/45797msec); 0 zone resets clat (msec): min=16, max=341, avg=70.88, stdev=46.70 lat (msec): min=16, max=341, avg=70.89, stdev=46.70 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 84], 80.00th=[ 100], 90.00th=[ 129], 95.00th=[ 171], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 477, per=25.19%, avg=136.29, stdev=77.04, samples=90 iops : min= 1, max= 29, avg= 7.77, stdev= 4.88, samples=90 lat (msec) : 10=0.39%, 20=7.68%, 50=47.79%, 100=29.69%, 250=13.93% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=2.33%, ctx=1197, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=514KiB/s (527kB/s), 123KiB/s-134KiB/s (126kB/s-138kB/s), io=23.4MiB (24.5MB), run=45797-46571msec WRITE: bw=541KiB/s (554kB/s), 130KiB/s-141KiB/s (133kB/s-144kB/s), io=24.6MiB (25.8MB), run=45797-46571msec 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=179502: Mon Aug 10 21:54:12 2026 read: IOPS=1, BW=1125KiB/s (1152kB/s)(7168KiB/6373msec) clat (msec): min=162, max=1509, avg=514.20, stdev=464.65 lat (msec): min=162, max=1509, avg=514.20, stdev=464.65 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 220], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 309], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 592], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 1539, max= 4047, per=73.27%, avg=2337.40, stdev=979.41, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=803KiB/s (823kB/s)(5120KiB/6373msec); 0 zone resets clat (msec): min=130, max=877, avg=504.01, stdev=324.29 lat (msec): min=131, max=877, avg=504.09, stdev=324.31 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 810], 80.00th=[ 810], 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= 1872, max= 2035, per=44.04%, avg=1967.00, stdev=82.38, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=33.33%, 750=16.67%, 1000=16.67%, 2000=8.33% cpu : usr=0.03%, sys=9.82%, ctx=361, 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=179503: Mon Aug 10 21:54:12 2026 read: IOPS=0, BW=355KiB/s (364kB/s)(2048KiB/5767msec) clat (usec): min=684, max=322357, avg=161521.12, stdev=227457.63 lat (usec): min=685, max=322360, avg=161523.21, stdev=227458.17 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[ 685], | 30.00th=[ 685], 40.00th=[ 685], 50.00th=[ 685], 60.00th=[320865], | 70.00th=[320865], 80.00th=[320865], 90.00th=[320865], 95.00th=[320865], | 99.00th=[320865], 99.50th=[320865], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 1430, max= 1882, per=51.91%, avg=1656.00, stdev=319.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1776KiB/s (1818kB/s)(10.0MiB/5767msec); 0 zone resets clat (msec): min=114, max=2195, avg=532.41, stdev=611.24 lat (msec): min=114, max=2196, avg=532.75, stdev=611.23 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 178], | 30.00th=[ 228], 40.00th=[ 255], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 498], 80.00th=[ 502], 90.00th=[ 718], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 1882, max= 4063, per=59.52%, avg=2658.00, stdev=1042.07, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=11.74%, ctx=167, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179504: Mon Aug 10 21:54:12 2026 read: IOPS=0, BW=957KiB/s (980kB/s)(6144KiB/6420msec) clat (usec): min=1968, max=554446, avg=253074.67, stdev=217039.70 lat (usec): min=1969, max=554449, avg=253076.44, stdev=217040.08 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 1975], 10.00th=[ 1975], 20.00th=[ 2245], | 30.00th=[ 2245], 40.00th=[261096], 50.00th=[261096], 60.00th=[341836], | 70.00th=[358613], 80.00th=[358613], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 2035, max= 4000, per=100.00%, avg=3324.33, stdev=1117.03, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=957KiB/s (980kB/s)(6144KiB/6420msec); 0 zone resets clat (msec): min=184, max=2326, avg=763.61, stdev=779.86 lat (msec): min=184, max=2326, avg=763.69, stdev=779.86 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 550], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 1872, max= 4023, per=52.84%, avg=2360.00, stdev=932.12, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 4=8.33%, 250=8.33%, 500=41.67%, 750=25.00% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=7.95%, ctx=219, 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=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=179505: Mon Aug 10 21:54:12 2026 read: IOPS=0, BW=919KiB/s (941kB/s)(5120KiB/5574msec) clat (usec): min=1641, max=322992, avg=104525.37, stdev=147164.97 lat (usec): min=1643, max=322994, avg=104526.95, stdev=147165.04 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1647], 10.00th=[ 1647], 20.00th=[ 1647], | 30.00th=[ 2409], 40.00th=[ 2409], 50.00th=[ 3458], 60.00th=[ 3458], | 70.00th=[191890], 80.00th=[191890], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 3764, max= 3938, per=100.00%, avg=3851.00, stdev=123.04, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1286KiB/s (1317kB/s)(7168KiB/5574msec); 0 zone resets clat (msec): min=168, max=2283, avg=689.75, stdev=730.86 lat (msec): min=168, max=2283, avg=690.05, stdev=730.76 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 338], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 351], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 802], 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= 1882, max= 2035, per=44.56%, avg=1990.20, stdev=61.88, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=8.33%, 4=16.67%, 250=16.67%, 500=33.33%, 750=8.33% lat (msec) : 1000=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=10.08%, ctx=97, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3190KiB/s (3267kB/s), 355KiB/s-1125KiB/s (364kB/s-1152kB/s), io=20.0MiB (20.0MB), run=5574-6420msec WRITE: bw=4466KiB/s (4573kB/s), 803KiB/s-1776KiB/s (823kB/s-1818kB/s), io=28.0MiB (29.4MB), run=5574-6420msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179497: Mon Aug 10 21:54:13 2026 read: IOPS=1, BW=1121KiB/s (1148kB/s)(7168KiB/6396msec) clat (msec): min=101, max=1279, avg=508.08, stdev=423.36 lat (msec): min=101, max=1279, avg=508.08, stdev=423.36 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 209], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 368], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 885], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 1996, max= 2473, per=72.46%, avg=2107.80, stdev=204.99, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=801KiB/s (820kB/s)(5120KiB/6396msec); 0 zone resets clat (msec): min=138, max=801, avg=550.94, stdev=252.16 lat (msec): min=138, max=801, avg=551.07, stdev=252.14 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 2003, max= 2043, per=49.78%, avg=2027.00, stdev=16.00, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=25.00%, 750=25.00%, 1000=16.67%, 2000=8.33% cpu : usr=0.02%, sys=3.96%, ctx=91, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179498: Mon Aug 10 21:54:13 2026 read: IOPS=0, BW=291KiB/s (298kB/s)(2048KiB/7040msec) clat (msec): min=236, max=798, avg=517.18, stdev=397.21 lat (msec): min=236, max=798, avg=517.18, stdev=397.21 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1878, max= 1878, per=64.56%, avg=1878.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1455KiB/s (1489kB/s)(10.0MiB/7040msec); 0 zone resets clat (msec): min=105, max=2911, avg=574.42, stdev=858.33 lat (msec): min=105, max=2923, avg=575.77, stdev=861.81 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 116], | 30.00th=[ 153], 40.00th=[ 171], 50.00th=[ 174], 60.00th=[ 207], | 70.00th=[ 414], 80.00th=[ 676], 90.00th=[ 827], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 1878, max= 4087, per=79.18%, avg=3224.40, stdev=1157.06, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (msec) : 250=58.33%, 500=8.33%, 750=8.33%, 1000=16.67%, >=2000=8.33% cpu : usr=0.04%, sys=4.46%, ctx=108, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179499: Mon Aug 10 21:54:13 2026 read: IOPS=0, BW=950KiB/s (973kB/s)(6144KiB/6468msec) clat (msec): min=124, max=805, avg=427.49, stdev=260.23 lat (msec): min=124, max=805, avg=427.50, stdev=260.23 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2007, max= 4023, per=86.87%, avg=2527.00, stdev=997.45, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=950KiB/s (973kB/s)(6144KiB/6468msec); 0 zone resets clat (msec): min=154, max=1796, avg=622.98, stdev=616.72 lat (msec): min=154, max=1797, avg=623.35, stdev=617.30 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 401], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 1712, max= 2039, per=47.19%, avg=1921.50, stdev=127.71, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 1000=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.88%, ctx=127, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179500: Mon Aug 10 21:54:13 2026 read: IOPS=0, BW=993KiB/s (1017kB/s)(5120KiB/5154msec) clat (msec): min=112, max=326, avg=195.33, stdev=94.20 lat (msec): min=112, max=326, avg=195.34, stdev=94.20 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 146], 60.00th=[ 146], | 70.00th=[ 262], 80.00th=[ 262], 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= 2023, max= 6035, per=100.00%, avg=4029.00, stdev=2836.91, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1391KiB/s (1424kB/s)(7168KiB/5154msec); 0 zone resets clat (msec): min=197, max=1773, avg=591.51, stdev=552.55 lat (msec): min=197, max=1773, avg=591.61, stdev=552.55 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 211], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 380], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 709], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1712, max= 3930, per=57.31%, avg=2333.60, stdev=901.85, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.22%, ctx=106, 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=2909KiB/s (2979kB/s), 291KiB/s-1121KiB/s (298kB/s-1148kB/s), io=20.0MiB (20.0MB), run=5154-7040msec WRITE: bw=4073KiB/s (4170kB/s), 801KiB/s-1455KiB/s (820kB/s-1489kB/s), io=28.0MiB (29.4MB), run=5154-7040msec 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=179513: Mon Aug 10 21:54:29 2026 read: IOPS=0, BW=3968KiB/s (4063kB/s)(12.0MiB/3097msec) clat (msec): min=833, max=1239, avg=990.40, stdev=218.27 lat (msec): min=833, max=1239, avg=990.40, stdev=218.27 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7937, max= 8094, per=100.00%, avg=8015.50, stdev=111.02, 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=8.56%, ctx=382, 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=179514: Mon Aug 10 21:54:29 2026 read: IOPS=0, BW=1667KiB/s (1707kB/s)(4096KiB/2457msec) clat (nsec): min=975759k, max=975759k, avg=975759381.00, stdev= 0.00 lat (nsec): min=975764k, max=975764k, avg=975764326.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 978], 5.00th=[ 978], 10.00th=[ 978], 20.00th=[ 978], | 30.00th=[ 978], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3334KiB/s (3414kB/s)(8192KiB/2457msec); 0 zone resets clat (msec): min=549, max=853, avg=701.24, stdev=215.10 lat (msec): min=549, max=853, avg=701.82, stdev=214.94 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 852], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 8175, max= 8175, per=87.77%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.04%, sys=11.40%, ctx=188, 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=179515: Mon Aug 10 21:54:29 2026 write: IOPS=0, BW=3493KiB/s (3577kB/s)(12.0MiB/3518msec); 0 zone resets clat (msec): min=681, max=1441, avg=1116.72, stdev=391.73 lat (msec): min=682, max=1442, avg=1117.13, stdev=391.74 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7529, max= 8175, per=84.30%, avg=7852.00, stdev=456.79, 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=2.84%, ctx=60, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179517: Mon Aug 10 21:54:29 2026 write: IOPS=1, BW=4137KiB/s (4237kB/s)(12.0MiB/2970msec); 0 zone resets clat (msec): min=365, max=1892, avg=944.50, stdev=828.04 lat (msec): min=365, max=1893, avg=944.94, stdev=828.11 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min=16221, max=16221, per=100.00%, avg=16221.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.85%, ctx=65, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5290KiB/s (5417kB/s), 1667KiB/s-3968KiB/s (1707kB/s-4063kB/s), io=16.0MiB (16.8MB), run=2457-3097msec WRITE: bw=9314KiB/s (9538kB/s), 3334KiB/s-4137KiB/s (3414kB/s-4237kB/s), io=32.0MiB (33.6MB), run=2457-3518msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179516: Mon Aug 10 21:54:30 2026 read: IOPS=2, BW=8969KiB/s (9185kB/s)(12.0MiB/1370msec) clat (msec): min=319, max=513, avg=412.24, stdev=96.98 lat (msec): min=319, max=513, avg=412.24, stdev=96.98 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 6977, max= 8031, per=100.00%, avg=7504.00, stdev=745.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=10.52%, ctx=66, 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=179518: Mon Aug 10 21:54:30 2026 read: IOPS=0, BW=1174KiB/s (1202kB/s)(4096KiB/3490msec) clat (nsec): min=1215.0M, max=1215.0M, avg=1215029181.00, stdev= 0.00 lat (nsec): min=1215.0M, max=1215.0M, avg=1215031488.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2347KiB/s (2404kB/s)(8192KiB/3490msec); 0 zone resets clat (msec): min=801, max=1398, avg=1099.87, stdev=422.37 lat (msec): min=801, max=1398, avg=1100.17, stdev=422.45 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=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8110, max= 8110, per=92.89%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.27%, ctx=55, 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=179519: Mon Aug 10 21:54:30 2026 write: IOPS=0, BW=3274KiB/s (3353kB/s)(12.0MiB/3753msec); 0 zone resets clat (msec): min=147, max=1777, avg=1189.33, stdev=904.59 lat (msec): min=147, max=1782, avg=1191.31, stdev=906.27 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 1636], 50.00th=[ 1636], 60.00th=[ 1636], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8078, max= 8192, per=93.17%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.61%, ctx=56, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179520: Mon Aug 10 21:54:30 2026 write: IOPS=0, BW=3489KiB/s (3573kB/s)(12.0MiB/3522msec); 0 zone resets clat (msec): min=257, max=2331, avg=1144.12, stdev=1068.84 lat (msec): min=258, max=2332, avg=1144.99, stdev=1069.22 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 8031, max= 8094, per=92.34%, avg=8062.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.11%, sys=2.50%, ctx=36, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4695KiB/s (4807kB/s), 1174KiB/s-8969KiB/s (1202kB/s-9185kB/s), io=16.0MiB (16.8MB), run=1370-3490msec WRITE: bw=8731KiB/s (8941kB/s), 2347KiB/s-3489KiB/s (2404kB/s-3573kB/s), io=32.0MiB (33.6MB), run=3490-3753msec