== sanity test 398b: DIO and buffer IO race ============== 10:50:47 (1779979847) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.92427 s, 8.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=148357: Thu May 28 10:53:43 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5992KiB/156343msec) clat (usec): min=180, max=718100, avg=49845.85, stdev=41261.64 lat (usec): min=180, max=718101, avg=49850.82, stdev=41258.98 clat percentiles (usec): | 1.00th=[ 241], 5.00th=[ 297], 10.00th=[ 766], 20.00th=[ 22152], | 30.00th=[ 30278], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 61080], 80.00th=[ 73925], 90.00th=[ 95945], 95.00th=[115868], | 99.00th=[164627], 99.50th=[189793], 99.90th=[371196], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 87, per=25.32%, avg=38.24, stdev=16.61, samples=304 iops : min= 1, max= 21, avg= 8.90, stdev= 4.18, samples=304 write: IOPS=10, BW=40.3KiB/s (41.2kB/s)(6296KiB/156343msec); 0 zone resets clat (usec): min=1137, max=547543, avg=51495.65, stdev=50884.43 lat (usec): min=1138, max=547545, avg=51498.75, stdev=50883.61 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1614], 10.00th=[ 2868], 20.00th=[ 7046], | 30.00th=[ 12780], 40.00th=[ 26870], 50.00th=[ 41157], 60.00th=[ 53216], | 70.00th=[ 67634], 80.00th=[ 86508], 90.00th=[116917], 95.00th=[145753], | 99.00th=[208667], 99.50th=[229639], 99.90th=[438305], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 110, per=25.17%, avg=39.76, stdev=18.37, samples=307 iops : min= 1, max= 27, avg= 9.28, stdev= 4.62, samples=307 lat (usec) : 250=0.62%, 500=3.61%, 750=0.62%, 1000=0.23% lat (msec) : 2=4.52%, 4=3.68%, 10=7.13%, 20=5.99%, 50=31.41% lat (msec) : 100=30.40%, 250=11.46%, 500=0.26%, 750=0.07% cpu : usr=0.08%, sys=5.28%, ctx=6780, 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=148358: Thu May 28 10:53:43 2026 read: IOPS=9, BW=37.5KiB/s (38.4kB/s)(5940KiB/158214msec) clat (usec): min=178, max=808062, avg=51658.35, stdev=44571.19 lat (usec): min=178, max=808063, avg=51667.66, stdev=44572.79 clat percentiles (usec): | 1.00th=[ 239], 5.00th=[ 297], 10.00th=[ 668], 20.00th=[ 21627], | 30.00th=[ 29230], 40.00th=[ 36439], 50.00th=[ 44303], 60.00th=[ 52691], | 70.00th=[ 64226], 80.00th=[ 78119], 90.00th=[100140], 95.00th=[120062], | 99.00th=[168821], 99.50th=[235930], 99.90th=[367002], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 95, per=24.72%, avg=37.33, stdev=16.63, samples=309 iops : min= 1, max= 23, avg= 8.67, stdev= 4.19, samples=309 write: IOPS=10, BW=40.1KiB/s (41.1kB/s)(6348KiB/158214msec); 0 zone resets clat (usec): min=1116, max=391041, avg=50942.04, stdev=50956.91 lat (usec): min=1118, max=391042, avg=50945.02, stdev=50956.76 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1647], 10.00th=[ 2671], 20.00th=[ 6063], | 30.00th=[ 11600], 40.00th=[ 22938], 50.00th=[ 38011], 60.00th=[ 54264], | 70.00th=[ 68682], 80.00th=[ 88605], 90.00th=[119014], 95.00th=[145753], | 99.00th=[221250], 99.50th=[274727], 99.90th=[320865], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 143, per=25.25%, avg=39.89, stdev=18.48, samples=309 iops : min= 1, max= 35, avg= 9.31, stdev= 4.65, samples=309 lat (usec) : 250=0.65%, 500=3.81%, 750=0.55%, 1000=0.26% lat (msec) : 2=4.13%, 4=3.09%, 10=8.27%, 20=7.68%, 50=28.91% lat (msec) : 100=29.65%, 250=12.43%, 500=0.52%, 1000=0.03% cpu : usr=0.08%, sys=5.33%, ctx=6845, 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=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=148359: Thu May 28 10:53:43 2026 read: IOPS=9, BW=39.2KiB/s (40.2kB/s)(6028KiB/153648msec) clat (usec): min=177, max=803224, avg=48556.63, stdev=40899.34 lat (usec): min=177, max=803225, avg=48561.79, stdev=40900.90 clat percentiles (usec): | 1.00th=[ 227], 5.00th=[ 289], 10.00th=[ 570], 20.00th=[ 20841], | 30.00th=[ 28443], 40.00th=[ 35390], 50.00th=[ 41681], 60.00th=[ 50594], | 70.00th=[ 60556], 80.00th=[ 73925], 90.00th=[ 94897], 95.00th=[114820], | 99.00th=[152044], 99.50th=[198181], 99.90th=[278922], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 87, per=25.95%, avg=39.18, stdev=17.33, samples=299 iops : min= 1, max= 21, avg= 9.14, stdev= 4.37, samples=299 write: IOPS=10, BW=40.7KiB/s (41.7kB/s)(6260KiB/153648msec); 0 zone resets clat (usec): min=1095, max=392423, avg=51051.04, stdev=50275.78 lat (usec): min=1097, max=392424, avg=51053.27, stdev=50275.99 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1631], 10.00th=[ 2606], 20.00th=[ 5997], | 30.00th=[ 12518], 40.00th=[ 24249], 50.00th=[ 37487], 60.00th=[ 52691], | 70.00th=[ 68682], 80.00th=[ 89654], 90.00th=[119014], 95.00th=[147850], | 99.00th=[208667], 99.50th=[250610], 99.90th=[287310], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 102, per=25.50%, avg=40.29, stdev=18.22, samples=302 iops : min= 1, max= 25, avg= 9.42, stdev= 4.59, samples=302 lat (usec) : 250=1.20%, 500=3.52%, 750=0.62%, 1000=0.42% lat (msec) : 2=4.30%, 4=3.84%, 10=6.93%, 20=7.45%, 50=30.73% lat (msec) : 100=28.68%, 250=11.95%, 500=0.33%, 1000=0.03% cpu : usr=0.07%, sys=5.48%, ctx=6885, 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=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=148360: Thu May 28 10:53:43 2026 read: IOPS=9, BW=38.5KiB/s (39.4kB/s)(6052KiB/157305msec) clat (usec): min=181, max=393316, avg=50541.43, stdev=38946.29 lat (usec): min=181, max=393318, avg=50544.78, stdev=38945.96 clat percentiles (usec): | 1.00th=[ 239], 5.00th=[ 289], 10.00th=[ 963], 20.00th=[ 22938], | 30.00th=[ 29492], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 62653], 80.00th=[ 78119], 90.00th=[100140], 95.00th=[119014], | 99.00th=[168821], 99.50th=[238027], 99.90th=[287310], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 95, per=25.24%, avg=38.11, stdev=17.43, samples=308 iops : min= 1, max= 23, avg= 8.87, stdev= 4.35, samples=308 write: IOPS=9, BW=39.6KiB/s (40.6kB/s)(6236KiB/157305msec); 0 zone resets clat (usec): min=1200, max=743789, avg=51432.37, stdev=55198.57 lat (usec): min=1201, max=743790, avg=51440.87, stdev=55195.88 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1549], 10.00th=[ 2311], 20.00th=[ 5932], | 30.00th=[ 11994], 40.00th=[ 21365], 50.00th=[ 36963], 60.00th=[ 50594], | 70.00th=[ 66323], 80.00th=[ 87557], 90.00th=[124257], 95.00th=[152044], | 99.00th=[221250], 99.50th=[278922], 99.90th=[367002], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 119, per=24.92%, avg=39.37, stdev=17.22, samples=307 iops : min= 1, max= 29, avg= 9.19, stdev= 4.34, samples=307 lat (usec) : 250=0.78%, 500=3.39%, 750=0.42%, 1000=0.39% lat (msec) : 2=5.18%, 4=3.09%, 10=6.93%, 20=8.24%, 50=30.79% lat (msec) : 100=27.77%, 250=12.57%, 500=0.42%, 750=0.03% cpu : usr=0.08%, sys=5.36%, ctx=6810, 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=152KiB/s (155kB/s), 37.5KiB/s-39.2KiB/s (38.4kB/s-40.2kB/s), io=23.4MiB (24.6MB), run=153648-158214msec WRITE: bw=159KiB/s (163kB/s), 39.6KiB/s-40.7KiB/s (40.6kB/s-41.7kB/s), io=24.6MiB (25.7MB), run=153648-158214msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148362: Thu May 28 10:56:53 2026 read: IOPS=4, BW=17.3KiB/s (17.7kB/s)(5992KiB/346026msec) clat (msec): min=6, max=585, avg=48.70, stdev=47.21 lat (msec): min=6, max=585, avg=48.71, stdev=47.21 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 70], 90.00th=[ 99], 95.00th=[ 132], | 99.00th=[ 239], 99.50th=[ 275], 99.90th=[ 523], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 87, per=30.06%, avg=20.74, stdev=13.65, samples=554 iops : min= 1, max= 21, avg= 4.53, stdev= 3.44, samples=554 write: IOPS=4, BW=18.2KiB/s (18.6kB/s)(6296KiB/346026msec); 0 zone resets clat (msec): min=43, max=1691, avg=173.36, stdev=88.71 lat (msec): min=43, max=1691, avg=173.36, stdev=88.71 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 79], 10.00th=[ 90], 20.00th=[ 107], | 30.00th=[ 122], 40.00th=[ 140], 50.00th=[ 157], 60.00th=[ 174], | 70.00th=[ 199], 80.00th=[ 232], 90.00th=[ 279], 95.00th=[ 321], | 99.00th=[ 443], 99.50th=[ 514], 99.90th=[ 709], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 47, per=25.04%, avg=18.03, stdev= 8.20, samples=665 iops : min= 1, max= 11, avg= 3.85, stdev= 2.08, samples=665 lat (msec) : 10=0.72%, 20=10.09%, 50=22.30%, 100=19.04%, 250=39.78% lat (msec) : 500=7.75%, 750=0.29%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5464, 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=148363: Thu May 28 10:56:53 2026 read: IOPS=4, BW=17.1KiB/s (17.5kB/s)(5940KiB/347357msec) clat (msec): min=6, max=1699, avg=48.85, stdev=60.99 lat (msec): min=6, max=1699, avg=48.85, stdev=60.99 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 54], 80.00th=[ 71], 90.00th=[ 94], 95.00th=[ 124], | 99.00th=[ 194], 99.50th=[ 232], 99.90th=[ 869], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 87, per=29.23%, avg=20.17, stdev=13.31, samples=564 iops : min= 1, max= 21, avg= 4.39, stdev= 3.34, samples=564 write: IOPS=4, BW=18.3KiB/s (18.7kB/s)(6348KiB/347357msec); 0 zone resets clat (msec): min=37, max=710, avg=173.05, stdev=79.06 lat (msec): min=37, max=710, avg=173.05, stdev=79.06 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 79], 10.00th=[ 91], 20.00th=[ 110], | 30.00th=[ 125], 40.00th=[ 140], 50.00th=[ 157], 60.00th=[ 176], | 70.00th=[ 199], 80.00th=[ 232], 90.00th=[ 279], 95.00th=[ 330], | 99.00th=[ 426], 99.50th=[ 468], 99.90th=[ 600], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 48, per=24.80%, avg=17.86, stdev= 8.15, samples=677 iops : min= 1, max= 12, avg= 3.81, stdev= 2.08, samples=677 lat (msec) : 10=0.88%, 20=9.67%, 50=21.94%, 100=19.24%, 250=40.14% lat (msec) : 500=7.88%, 750=0.20%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5475, 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=148364: Thu May 28 10:56:53 2026 read: IOPS=4, BW=17.3KiB/s (17.8kB/s)(6028KiB/347560msec) clat (msec): min=6, max=414, avg=48.63, stdev=41.04 lat (msec): min=6, max=414, avg=48.63, stdev=41.04 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 71], 90.00th=[ 100], 95.00th=[ 127], | 99.00th=[ 190], 99.50th=[ 253], 99.90th=[ 384], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 95, per=29.41%, avg=20.29, stdev=13.48, samples=569 iops : min= 1, max= 23, avg= 4.42, stdev= 3.40, samples=569 write: IOPS=4, BW=18.0KiB/s (18.4kB/s)(6260KiB/347560msec); 0 zone resets clat (msec): min=42, max=1849, avg=175.14, stdev=92.62 lat (msec): min=42, max=1849, avg=175.15, stdev=92.62 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 79], 10.00th=[ 89], 20.00th=[ 108], | 30.00th=[ 124], 40.00th=[ 140], 50.00th=[ 159], 60.00th=[ 176], | 70.00th=[ 201], 80.00th=[ 230], 90.00th=[ 279], 95.00th=[ 330], | 99.00th=[ 443], 99.50th=[ 493], 99.90th=[ 995], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 40, per=24.85%, avg=17.89, stdev= 8.06, samples=666 iops : min= 1, max= 10, avg= 3.81, stdev= 2.06, samples=666 lat (msec) : 10=0.78%, 20=9.34%, 50=22.88%, 100=19.24%, 250=39.81% lat (msec) : 500=7.75%, 750=0.13%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.36%, ctx=5570, 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=148365: Thu May 28 10:56:53 2026 read: IOPS=4, BW=17.5KiB/s (17.9kB/s)(6052KiB/345806msec) clat (msec): min=5, max=600, avg=50.54, stdev=49.73 lat (msec): min=5, max=600, avg=50.55, stdev=49.73 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 54], 80.00th=[ 73], 90.00th=[ 106], 95.00th=[ 142], | 99.00th=[ 232], 99.50th=[ 300], 99.90th=[ 514], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 87, per=29.66%, avg=20.47, stdev=13.71, samples=566 iops : min= 1, max= 21, avg= 4.46, stdev= 3.45, samples=566 write: IOPS=4, BW=18.0KiB/s (18.5kB/s)(6236KiB/345806msec); 0 zone resets clat (msec): min=38, max=1923, avg=172.64, stdev=89.78 lat (msec): min=38, max=1923, avg=172.64, stdev=89.78 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 79], 10.00th=[ 94], 20.00th=[ 110], | 30.00th=[ 124], 40.00th=[ 138], 50.00th=[ 157], 60.00th=[ 176], | 70.00th=[ 197], 80.00th=[ 226], 90.00th=[ 275], 95.00th=[ 313], | 99.00th=[ 426], 99.50th=[ 472], 99.90th=[ 995], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 40, per=24.84%, avg=17.89, stdev= 8.26, samples=663 iops : min= 1, max= 10, avg= 3.81, stdev= 2.11, samples=663 lat (msec) : 10=0.72%, 20=10.12%, 50=22.07%, 100=17.77%, 250=41.44% lat (msec) : 500=7.58%, 750=0.23%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.32%, ctx=5629, 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=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=69.1KiB/s (70.7kB/s), 17.1KiB/s-17.5KiB/s (17.5kB/s-17.9kB/s), io=23.4MiB (24.6MB), run=345806-347560msec WRITE: bw=72.3KiB/s (74.1kB/s), 18.0KiB/s-18.3KiB/s (18.4kB/s-18.7kB/s), io=24.6MiB (25.7MB), run=345806-347560msec 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=148433: Thu May 28 10:57:42 2026 read: IOPS=10, BW=163KiB/s (167kB/s)(5920KiB/36300msec) clat (usec): min=203, max=343411, avg=51007.31, stdev=42242.11 lat (usec): min=203, max=343412, avg=51011.45, stdev=42242.90 clat percentiles (usec): | 1.00th=[ 247], 5.00th=[ 281], 10.00th=[ 355], 20.00th=[ 21365], | 30.00th=[ 33162], 40.00th=[ 39584], 50.00th=[ 46924], 60.00th=[ 53740], | 70.00th=[ 61080], 80.00th=[ 73925], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[229639], 99.50th=[329253], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 30, max= 380, per=25.25%, avg=165.37, stdev=71.44, samples=70 iops : min= 1, max= 23, avg= 9.60, stdev= 4.52, samples=70 write: IOPS=10, BW=175KiB/s (180kB/s)(6368KiB/36300msec); 0 zone resets clat (usec): min=1731, max=422758, avg=43561.72, stdev=48769.15 lat (usec): min=1734, max=422760, avg=43566.55, stdev=48767.72 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 2802], 10.00th=[ 4080], 20.00th=[ 7308], | 30.00th=[ 11338], 40.00th=[ 18220], 50.00th=[ 26084], 60.00th=[ 37487], | 70.00th=[ 53216], 80.00th=[ 72877], 90.00th=[106431], 95.00th=[135267], | 99.00th=[244319], 99.50th=[287310], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 31, max= 383, per=25.82%, avg=178.13, stdev=76.07, samples=70 iops : min= 1, max= 23, avg=10.40, stdev= 4.84, samples=70 lat (usec) : 250=0.78%, 500=4.56%, 750=0.52%, 1000=0.26% lat (msec) : 2=0.91%, 4=5.34%, 10=9.77%, 20=8.85%, 50=29.69% lat (msec) : 100=28.52%, 250=10.03%, 500=0.78% cpu : usr=0.08%, sys=6.07%, ctx=1647, 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=148434: Thu May 28 10:57:42 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(5744KiB/36517msec) clat (usec): min=184, max=207304, avg=52147.53, stdev=36651.29 lat (usec): min=184, max=207306, avg=52149.35, stdev=36651.14 clat percentiles (usec): | 1.00th=[ 208], 5.00th=[ 302], 10.00th=[ 445], 20.00th=[ 22676], | 30.00th=[ 33424], 40.00th=[ 41157], 50.00th=[ 49546], 60.00th=[ 57410], | 70.00th=[ 66847], 80.00th=[ 79168], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[177210], 99.50th=[187696], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 30, max= 320, per=25.00%, avg=163.72, stdev=63.95, samples=68 iops : min= 1, max= 20, avg= 9.51, stdev= 4.10, samples=68 write: IOPS=11, BW=179KiB/s (184kB/s)(6544KiB/36517msec); 0 zone resets clat (usec): min=1658, max=421732, avg=43317.12, stdev=55641.31 lat (usec): min=1660, max=421735, avg=43324.75, stdev=55639.42 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 2474], 10.00th=[ 4686], 20.00th=[ 6980], | 30.00th=[ 10814], 40.00th=[ 17171], 50.00th=[ 23725], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 69731], 90.00th=[104334], 95.00th=[141558], | 99.00th=[299893], 99.50th=[358613], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 30, max= 476, per=26.01%, avg=179.46, stdev=88.19, samples=71 iops : min= 1, max= 29, avg=10.51, stdev= 5.63, samples=71 lat (usec) : 250=0.65%, 500=4.30%, 750=0.52%, 1000=0.13% lat (msec) : 2=1.30%, 4=4.30%, 10=11.59%, 20=9.77%, 50=30.08% lat (msec) : 100=27.47%, 250=9.24%, 500=0.65% cpu : usr=0.06%, sys=5.72%, ctx=1631, 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=148435: Thu May 28 10:57:42 2026 read: IOPS=10, BW=173KiB/s (178kB/s)(6256KiB/36085msec) clat (usec): min=181, max=286645, avg=53601.15, stdev=41394.97 lat (usec): min=181, max=286647, avg=53602.74, stdev=41394.97 clat percentiles (usec): | 1.00th=[ 235], 5.00th=[ 310], 10.00th=[ 494], 20.00th=[ 26870], | 30.00th=[ 33817], 40.00th=[ 39584], 50.00th=[ 45876], 60.00th=[ 53740], | 70.00th=[ 66323], 80.00th=[ 81265], 90.00th=[102237], 95.00th=[123208], | 99.00th=[181404], 99.50th=[274727], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 318, per=26.65%, avg=174.59, stdev=64.30, samples=70 iops : min= 1, max= 19, avg=10.19, stdev= 4.07, samples=70 write: IOPS=10, BW=167KiB/s (171kB/s)(6032KiB/36085msec); 0 zone resets clat (usec): min=1849, max=263198, avg=39975.76, stdev=42340.02 lat (usec): min=1851, max=263201, avg=39983.51, stdev=42349.07 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 2933], 10.00th=[ 4490], 20.00th=[ 7767], | 30.00th=[ 11600], 40.00th=[ 15401], 50.00th=[ 23725], 60.00th=[ 34341], | 70.00th=[ 46400], 80.00th=[ 69731], 90.00th=[103285], 95.00th=[137364], | 99.00th=[170918], 99.50th=[223347], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 31, max= 377, per=24.57%, avg=169.54, stdev=76.08, samples=68 iops : min= 1, max= 23, avg= 9.88, stdev= 4.79, samples=68 lat (usec) : 250=0.52%, 500=4.69%, 750=0.65%, 1000=0.78% lat (msec) : 2=1.04%, 4=3.52%, 10=9.51%, 20=10.55%, 50=31.90% lat (msec) : 100=26.56%, 250=9.77%, 500=0.52% cpu : usr=0.09%, sys=6.23%, ctx=1761, 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=148436: Thu May 28 10:57:42 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35035msec) clat (usec): min=192, max=281764, avg=46583.01, stdev=38068.06 lat (usec): min=192, max=281765, avg=46598.40, stdev=38069.23 clat percentiles (usec): | 1.00th=[ 227], 5.00th=[ 293], 10.00th=[ 343], 20.00th=[ 4817], | 30.00th=[ 26084], 40.00th=[ 35914], 50.00th=[ 45876], 60.00th=[ 51643], | 70.00th=[ 61604], 80.00th=[ 72877], 90.00th=[ 90702], 95.00th=[107480], | 99.00th=[154141], 99.50th=[252707], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 405, per=26.11%, avg=171.03, stdev=75.00, samples=68 iops : min= 1, max= 25, avg= 9.99, stdev= 4.80, samples=68 write: IOPS=11, BW=179KiB/s (183kB/s)(6256KiB/35035msec); 0 zone resets clat (usec): min=1651, max=557873, avg=44589.11, stdev=51756.50 lat (usec): min=1653, max=557876, avg=44595.22, stdev=51754.48 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3195], 10.00th=[ 5145], 20.00th=[ 8455], | 30.00th=[ 12256], 40.00th=[ 19268], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 55837], 80.00th=[ 71828], 90.00th=[ 99091], 95.00th=[133694], | 99.00th=[214959], 99.50th=[341836], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 29, max= 416, per=26.33%, avg=181.66, stdev=71.64, samples=67 iops : min= 1, max= 26, avg=10.66, stdev= 4.51, samples=67 lat (usec) : 250=0.65%, 500=5.34%, 750=1.04%, 1000=0.39% lat (msec) : 2=1.82%, 4=3.78%, 10=10.29%, 20=8.72%, 50=30.60% lat (msec) : 100=29.69%, 250=7.16%, 500=0.39%, 750=0.13% cpu : usr=0.09%, sys=5.96%, ctx=1621, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=656KiB/s (672kB/s), 157KiB/s-173KiB/s (161kB/s-178kB/s), io=23.4MiB (24.5MB), run=35035-36517msec WRITE: bw=690KiB/s (707kB/s), 167KiB/s-179KiB/s (171kB/s-184kB/s), io=24.6MiB (25.8MB), run=35035-36517msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148427: Thu May 28 10:58:27 2026 read: IOPS=4, BW=74.3KiB/s (76.1kB/s)(5920KiB/79704msec) clat (msec): min=8, max=452, avg=50.19, stdev=52.77 lat (msec): min=8, max=452, avg=50.19, stdev=52.77 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 64], 90.00th=[ 116], 95.00th=[ 169], | 99.00th=[ 251], 99.50th=[ 338], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 30, max= 254, per=29.34%, avg=86.25, stdev=49.54, samples=134 iops : min= 1, max= 15, avg= 4.60, stdev= 3.12, samples=134 write: IOPS=4, BW=79.9KiB/s (81.8kB/s)(6368KiB/79704msec); 0 zone resets clat (msec): min=57, max=618, avg=153.38, stdev=71.62 lat (msec): min=57, max=618, avg=153.38, stdev=71.62 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 75], 10.00th=[ 83], 20.00th=[ 97], | 30.00th=[ 108], 40.00th=[ 122], 50.00th=[ 136], 60.00th=[ 150], | 70.00th=[ 174], 80.00th=[ 207], 90.00th=[ 247], 95.00th=[ 284], | 99.00th=[ 422], 99.50th=[ 464], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 30, max= 187, per=26.03%, avg=80.45, stdev=38.88, samples=155 iops : min= 1, max= 11, avg= 4.21, stdev= 2.51, samples=155 lat (msec) : 10=0.52%, 20=9.51%, 50=25.52%, 100=18.62%, 250=40.62% lat (msec) : 500=5.08%, 750=0.13% cpu : usr=0.04%, sys=1.40%, ctx=1295, 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=148428: Thu May 28 10:58:27 2026 read: IOPS=4, BW=70.6KiB/s (72.3kB/s)(5744KiB/81398msec) clat (msec): min=7, max=515, avg=48.91, stdev=55.06 lat (msec): min=7, max=515, avg=48.91, stdev=55.06 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 112], 95.00th=[ 163], | 99.00th=[ 257], 99.50th=[ 368], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 22, max= 285, per=30.70%, avg=90.26, stdev=56.77, samples=124 iops : min= 1, max= 17, avg= 4.83, stdev= 3.57, samples=124 write: IOPS=5, BW=80.4KiB/s (82.3kB/s)(6544KiB/81398msec); 0 zone resets clat (msec): min=44, max=563, avg=155.61, stdev=67.56 lat (msec): min=44, max=563, avg=155.61, stdev=67.56 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 72], 10.00th=[ 83], 20.00th=[ 101], | 30.00th=[ 113], 40.00th=[ 128], 50.00th=[ 144], 60.00th=[ 159], | 70.00th=[ 180], 80.00th=[ 205], 90.00th=[ 249], 95.00th=[ 279], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 30, max= 160, per=26.83%, avg=82.92, stdev=34.21, samples=154 iops : min= 1, max= 10, avg= 4.36, stdev= 2.21, samples=154 lat (msec) : 10=0.91%, 20=9.24%, 50=25.65%, 100=16.28%, 250=42.45% lat (msec) : 500=5.21%, 750=0.26% cpu : usr=0.05%, sys=1.51%, ctx=1452, 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=148429: Thu May 28 10:58:27 2026 read: IOPS=4, BW=79.6KiB/s (81.5kB/s)(6256KiB/78575msec) clat (msec): min=9, max=314, avg=45.44, stdev=45.36 lat (msec): min=9, max=314, avg=45.45, stdev=45.36 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 101], 95.00th=[ 153], | 99.00th=[ 241], 99.50th=[ 262], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 287, per=30.80%, avg=90.56, stdev=59.79, samples=136 iops : min= 1, max= 17, avg= 4.86, stdev= 3.80, samples=136 write: IOPS=4, BW=76.8KiB/s (78.6kB/s)(6032KiB/78575msec); 0 zone resets clat (msec): min=65, max=702, avg=160.74, stdev=73.74 lat (msec): min=65, max=702, avg=160.78, stdev=73.74 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 77], 10.00th=[ 87], 20.00th=[ 106], | 30.00th=[ 120], 40.00th=[ 133], 50.00th=[ 144], 60.00th=[ 159], | 70.00th=[ 178], 80.00th=[ 207], 90.00th=[ 247], 95.00th=[ 300], | 99.00th=[ 405], 99.50th=[ 460], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 30, max= 159, per=25.19%, avg=77.84, stdev=33.73, samples=152 iops : min= 1, max= 9, avg= 4.05, stdev= 2.15, samples=152 lat (msec) : 10=0.13%, 20=11.98%, 50=26.95%, 100=14.71%, 250=41.41% lat (msec) : 500=4.69%, 750=0.13% cpu : usr=0.04%, sys=1.48%, ctx=1394, 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=148430: Thu May 28 10:58:27 2026 read: IOPS=4, BW=76.4KiB/s (78.2kB/s)(6032KiB/78964msec) clat (msec): min=7, max=498, avg=48.55, stdev=55.62 lat (msec): min=7, max=498, avg=48.55, stdev=55.62 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 64], 90.00th=[ 106], 95.00th=[ 153], | 99.00th=[ 305], 99.50th=[ 380], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 29, max= 316, per=29.70%, avg=87.33, stdev=60.26, samples=134 iops : min= 1, max= 19, avg= 4.66, stdev= 3.84, samples=134 write: IOPS=4, BW=79.2KiB/s (81.1kB/s)(6256KiB/78964msec); 0 zone resets clat (msec): min=48, max=560, avg=154.71, stdev=75.58 lat (msec): min=48, max=560, avg=154.72, stdev=75.58 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 73], 10.00th=[ 81], 20.00th=[ 99], | 30.00th=[ 108], 40.00th=[ 123], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 174], 80.00th=[ 209], 90.00th=[ 251], 95.00th=[ 305], | 99.00th=[ 435], 99.50th=[ 523], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 30, max= 160, per=26.17%, avg=80.86, stdev=36.02, samples=151 iops : min= 1, max= 10, avg= 4.24, stdev= 2.33, samples=151 lat (msec) : 10=0.52%, 20=11.85%, 50=24.35%, 100=19.01%, 250=38.15% lat (msec) : 500=5.86%, 750=0.26% cpu : usr=0.05%, sys=1.45%, ctx=1395, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=294KiB/s (301kB/s), 70.6KiB/s-79.6KiB/s (72.3kB/s-81.5kB/s), io=23.4MiB (24.5MB), run=78575-81398msec WRITE: bw=310KiB/s (317kB/s), 76.8KiB/s-80.4KiB/s (78.6kB/s-82.3kB/s), io=24.6MiB (25.8MB), run=78575-81398msec 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=148460: Thu May 28 10:58:45 2026 read: IOPS=0, BW=1021KiB/s (1045kB/s)(7168KiB/7024msec) clat (msec): min=2, max=4509, avg=811.25, stdev=1636.92 lat (msec): min=2, max=4509, avg=811.25, stdev=1636.92 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 5], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 251], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 355], 90.00th=[ 4530], 95.00th=[ 4530], | 99.00th=[ 4530], 99.50th=[ 4530], 99.90th=[ 4530], 99.95th=[ 4530], | 99.99th=[ 4530] bw ( KiB/s): min= 1563, max= 3930, per=79.49%, avg=2317.20, stdev=924.13, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=729KiB/s (746kB/s)(5120KiB/7024msec); 0 zone resets clat (msec): min=180, max=387, avg=254.68, stdev=83.78 lat (msec): min=180, max=388, avg=254.76, stdev=83.78 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 1965, max= 4071, per=77.92%, avg=3180.67, stdev=1090.04, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 4=8.33%, 10=8.33%, 250=25.00%, 500=50.00%, >=2000=8.33% cpu : usr=0.00%, sys=7.15%, ctx=394, 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=148461: Thu May 28 10:58:45 2026 read: IOPS=0, BW=306KiB/s (314kB/s)(2048KiB/6687msec) clat (msec): min=261, max=343, avg=302.25, stdev=57.81 lat (msec): min=261, max=343, avg=302.25, stdev=57.81 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 1484, max= 2039, per=60.43%, avg=1761.50, stdev=392.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1531KiB/s (1568kB/s)(10.0MiB/6687msec); 0 zone resets clat (msec): min=117, max=2571, avg=596.00, stdev=733.43 lat (msec): min=119, max=2571, avg=596.33, stdev=733.26 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 215], | 30.00th=[ 226], 40.00th=[ 243], 50.00th=[ 288], 60.00th=[ 334], | 70.00th=[ 493], 80.00th=[ 527], 90.00th=[ 944], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 1753, max= 5785, per=71.64%, avg=2924.50, stdev=1650.81, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=8.00%, ctx=119, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148462: Thu May 28 10:58:45 2026 read: IOPS=0, BW=993KiB/s (1017kB/s)(6144KiB/6188msec) clat (usec): min=857, max=277520, avg=109939.87, stdev=132056.58 lat (usec): min=859, max=277521, avg=109941.41, stdev=132056.40 clat percentiles (usec): | 1.00th=[ 857], 5.00th=[ 857], 10.00th=[ 857], 20.00th=[ 914], | 30.00th=[ 914], 40.00th=[ 1500], 50.00th=[ 1500], 60.00th=[115868], | 70.00th=[263193], 80.00th=[263193], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 1965, max= 3961, per=100.00%, avg=3260.67, stdev=1123.31, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=993KiB/s (1017kB/s)(6144KiB/6188msec); 0 zone resets clat (msec): min=202, max=3136, avg=918.17, stdev=1137.72 lat (msec): min=202, max=3136, avg=918.32, stdev=1137.84 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 405], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 1903, max= 3093, per=54.76%, avg=2235.25, stdev=572.80, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=16.67% lat (msec) : 2=8.33%, 250=16.67%, 500=41.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.06%, sys=5.98%, ctx=162, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148463: Thu May 28 10:58:45 2026 read: IOPS=0, BW=811KiB/s (831kB/s)(5120KiB/6311msec) clat (usec): min=759, max=373696, avg=118734.61, stdev=170228.85 lat (usec): min=760, max=373698, avg=118736.11, stdev=170228.93 clat percentiles (usec): | 1.00th=[ 758], 5.00th=[ 758], 10.00th=[ 758], 20.00th=[ 758], | 30.00th=[ 848], 40.00th=[ 848], 50.00th=[ 2147], 60.00th=[ 2147], | 70.00th=[217056], 80.00th=[217056], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 1928, max= 5941, per=100.00%, avg=3934.50, stdev=2837.62, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1136KiB/s (1163kB/s)(7168KiB/6311msec); 0 zone resets clat (msec): min=79, max=3462, avg=806.25, stdev=1235.78 lat (msec): min=79, max=3462, avg=806.36, stdev=1235.74 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 153], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 220], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 1234], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 1558, max= 3806, per=59.55%, avg=2430.67, stdev=1205.36, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=16.67% lat (msec) : 4=8.33%, 100=8.33%, 250=33.33%, 500=16.67%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=6.13%, ctx=124, 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=2916KiB/s (2986kB/s), 306KiB/s-1021KiB/s (314kB/s-1045kB/s), io=20.0MiB (20.0MB), run=6188-7024msec WRITE: bw=4082KiB/s (4180kB/s), 729KiB/s-1531KiB/s (746kB/s-1568kB/s), io=28.0MiB (29.4MB), run=6188-7024msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148465: Thu May 28 10:58:46 2026 read: IOPS=0, BW=1001KiB/s (1025kB/s)(7168KiB/7159msec) clat (msec): min=45, max=3140, avg=790.00, stdev=1109.58 lat (msec): min=45, max=3140, avg=790.01, stdev=1109.58 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 99], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 188], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 1116], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 1996, max= 2043, per=70.79%, avg=2024.50, stdev=20.37, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=0, BW=715KiB/s (732kB/s)(5120KiB/7159msec); 0 zone resets clat (msec): min=166, max=600, avg=301.13, stdev=178.81 lat (msec): min=166, max=600, avg=301.26, stdev=178.80 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 249], 60.00th=[ 249], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1973, max= 6083, per=83.99%, avg=3363.67, stdev=2355.22, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=8.33%, 750=8.33% lat (msec) : 1000=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.10%, ctx=72, 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=148466: Thu May 28 10:58:46 2026 read: IOPS=0, BW=302KiB/s (309kB/s)(2048KiB/6776msec) clat (msec): min=135, max=212, avg=174.08, stdev=54.45 lat (msec): min=135, max=212, avg=174.08, stdev=54.45 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 213], | 70.00th=[ 213], 80.00th=[ 213], 90.00th=[ 213], 95.00th=[ 213], | 99.00th=[ 213], 99.50th=[ 213], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 1774, max= 2035, per=66.59%, avg=1904.50, stdev=184.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1511KiB/s (1547kB/s)(10.0MiB/6776msec); 0 zone resets clat (msec): min=167, max=3274, avg=624.27, stdev=956.69 lat (msec): min=167, max=3274, avg=624.64, stdev=956.57 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 207], 50.00th=[ 262], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 384], 90.00th=[ 919], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 2035, max= 4096, per=76.00%, avg=3043.83, stdev=1105.48, samples=6 iops : min= 1, max= 4, avg= 2.17, stdev= 1.33, samples=6 lat (msec) : 250=50.00%, 500=33.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.06%, sys=2.64%, ctx=78, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148467: Thu May 28 10:58:46 2026 read: IOPS=0, BW=904KiB/s (926kB/s)(6144KiB/6794msec) clat (msec): min=88, max=162, avg=121.94, stdev=30.02 lat (msec): min=88, max=162, avg=121.94, stdev=30.02 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 95], | 30.00th=[ 95], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 118], | 70.00th=[ 153], 80.00th=[ 153], 90.00th=[ 163], 95.00th=[ 163], | 99.00th=[ 163], 99.50th=[ 163], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 2035, max= 4071, per=100.00%, avg=3387.00, stdev=1170.89, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=904KiB/s (926kB/s)(6144KiB/6794msec); 0 zone resets clat (msec): min=213, max=3407, avg=984.62, stdev=1212.47 lat (msec): min=213, max=3407, avg=985.06, stdev=1212.30 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 760], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 2003, max= 2035, per=50.49%, avg=2022.20, stdev=14.53, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 1000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.06%, ctx=66, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148468: Thu May 28 10:58:46 2026 read: IOPS=0, BW=745KiB/s (763kB/s)(5120KiB/6873msec) clat (msec): min=84, max=269, avg=143.56, stdev=74.28 lat (msec): min=84, max=269, avg=143.56, stdev=74.28 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 122], 60.00th=[ 122], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 2027, max= 6107, per=100.00%, avg=4067.00, stdev=2885.00, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1043KiB/s (1068kB/s)(7168KiB/6873msec); 0 zone resets clat (msec): min=278, max=3431, avg=842.45, stdev=1163.61 lat (msec): min=278, max=3431, avg=842.58, stdev=1163.62 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 309], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 321], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 911], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 1718, max= 4096, per=59.40%, avg=2379.00, stdev=969.23, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (msec) : 100=16.67%, 250=16.67%, 500=50.00%, 1000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=2.60%, ctx=77, 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=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=2861KiB/s (2929kB/s), 302KiB/s-1001KiB/s (309kB/s-1025kB/s), io=20.0MiB (20.0MB), run=6776-7159msec WRITE: bw=4005KiB/s (4101kB/s), 715KiB/s-1511KiB/s (732kB/s-1547kB/s), io=28.0MiB (29.4MB), run=6776-7159msec 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=148474: Thu May 28 10:59:02 2026 read: IOPS=1, BW=7220KiB/s (7393kB/s)(12.0MiB/1702msec) clat (msec): min=226, max=947, avg=548.62, stdev=366.40 lat (msec): min=226, max=947, avg=548.62, stdev=366.40 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 944], 80.00th=[ 944], 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= 6872, max= 8159, per=100.00%, avg=7515.50, stdev=910.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=5.00%, ctx=58, 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=148475: Thu May 28 10:59:02 2026 read: IOPS=0, BW=903KiB/s (924kB/s)(4096KiB/4538msec) clat (nsec): min=1463.8M, max=1463.8M, avg=1463820289.00, stdev= 0.00 lat (nsec): min=1463.8M, max=1463.8M, avg=1463823414.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1469], 5.00th=[ 1469], 10.00th=[ 1469], 20.00th=[ 1469], | 30.00th=[ 1469], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7366, max= 7366, per=100.00%, avg=7366.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1805KiB/s (1849kB/s)(8192KiB/4538msec); 0 zone resets clat (msec): min=348, max=2652, avg=1500.53, stdev=1629.63 lat (msec): min=348, max=2653, avg=1501.39, stdev=1629.83 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 2668], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.20%, ctx=42, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148476: Thu May 28 10:59:02 2026 write: IOPS=0, BW=3199KiB/s (3276kB/s)(12.0MiB/3841msec); 0 zone resets clat (msec): min=559, max=1727, avg=1251.50, stdev=613.47 lat (msec): min=559, max=1728, avg=1251.86, stdev=613.45 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 5505, max= 8175, per=94.74%, avg=6840.00, stdev=1887.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.44%, ctx=68, 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=148477: Thu May 28 10:59:02 2026 write: IOPS=1, BW=4156KiB/s (4255kB/s)(12.0MiB/2957msec); 0 zone resets clat (msec): min=510, max=1475, avg=962.48, stdev=485.54 lat (msec): min=511, max=1477, avg=963.36, stdev=486.40 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.62%, ctx=48, 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=3610KiB/s (3697kB/s), 903KiB/s-7220KiB/s (924kB/s-7393kB/s), io=16.0MiB (16.8MB), run=1702-4538msec WRITE: bw=7221KiB/s (7394kB/s), 1805KiB/s-4156KiB/s (1849kB/s-4255kB/s), io=32.0MiB (33.6MB), run=2957-4538msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148479: Thu May 28 10:59:02 2026 read: IOPS=1, BW=4226KiB/s (4327kB/s)(12.0MiB/2908msec) clat (msec): min=748, max=1142, avg=968.92, stdev=201.08 lat (msec): min=748, max=1142, avg=968.92, stdev=201.08 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7816, max= 8015, per=100.00%, avg=7915.50, stdev=140.71, 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=10.39%, ctx=325, 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=148480: Thu May 28 10:59:02 2026 read: IOPS=0, BW=1234KiB/s (1264kB/s)(4096KiB/3318msec) clat (nsec): min=927676k, max=927676k, avg=927676157.00, stdev= 0.00 lat (nsec): min=927678k, max=927678k, avg=927678137.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] 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=2469KiB/s (2528kB/s)(8192KiB/3318msec); 0 zone resets clat (msec): min=928, max=1458, avg=1193.53, stdev=374.50 lat (msec): min=930, max=1458, avg=1194.45, stdev=373.69 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8143, max= 8143, per=97.67%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.88%, ctx=121, 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=148481: Thu May 28 10:59:02 2026 write: IOPS=0, BW=3127KiB/s (3202kB/s)(12.0MiB/3930msec); 0 zone resets clat (msec): min=977, max=1871, avg=1307.35, stdev=490.54 lat (msec): min=978, max=1875, avg=1309.02, stdev=492.65 clat percentiles (msec): | 1.00th=[ 978], 5.00th=[ 978], 10.00th=[ 978], 20.00th=[ 978], | 30.00th=[ 978], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7816, max= 8192, per=96.01%, avg=8004.00, stdev=265.87, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.49%, ctx=52, 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=148482: Thu May 28 10:59:02 2026 write: IOPS=1, BW=4465KiB/s (4572kB/s)(12.0MiB/2752msec); 0 zone resets clat (msec): min=520, max=1601, avg=891.38, stdev=615.25 lat (msec): min=521, max=1605, avg=892.84, stdev=616.97 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7816, max= 8175, per=95.90%, avg=7995.50, stdev=253.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.71%, ctx=64, 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=4938KiB/s (5056kB/s), 1234KiB/s-4226KiB/s (1264kB/s-4327kB/s), io=16.0MiB (16.8MB), run=2908-3318msec WRITE: bw=8338KiB/s (8538kB/s), 2469KiB/s-4465KiB/s (2528kB/s-4572kB/s), io=32.0MiB (33.6MB), run=2752-3930msec