== sanity test 398b: DIO and buffer IO race ============== 22:49:13 (1782614953) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.72423 s, 8.8 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=179286: Sat Jun 27 22:51:48 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5992KiB/131524msec) clat (usec): min=43, max=762819, avg=49020.40, stdev=35381.63 lat (usec): min=44, max=762821, avg=49021.91, stdev=35381.69 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 13173], 10.00th=[ 19006], 20.00th=[ 25560], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[156238], 99.50th=[168821], 99.90th=[240124], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 8, max= 88, per=25.64%, avg=45.13, stdev=16.86, samples=258 iops : min= 2, max= 22, avg=10.64, stdev= 4.25, samples=258 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(6296KiB/131524msec); 0 zone resets clat (usec): min=893, max=224517, avg=36571.61, stdev=37081.86 lat (usec): min=894, max=224519, avg=36581.81, stdev=37083.79 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 1663], 20.00th=[ 4146], | 30.00th=[ 7963], 40.00th=[ 15664], 50.00th=[ 26084], 60.00th=[ 37487], | 70.00th=[ 46924], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[160433], 99.50th=[175113], 99.90th=[219153], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 7, max= 117, per=25.91%, avg=47.67, stdev=19.75, samples=257 iops : min= 1, max= 29, avg=11.27, stdev= 4.99, samples=257 lat (usec) : 50=0.16%, 100=1.56%, 250=0.07%, 1000=0.10% lat (msec) : 2=6.09%, 4=3.81%, 10=7.19%, 20=9.24%, 50=38.57% lat (msec) : 100=26.43%, 250=6.74%, 1000=0.03% cpu : usr=0.08%, sys=5.01%, ctx=6438, 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=179287: Sat Jun 27 22:51:48 2026 read: IOPS=10, BW=43.6KiB/s (44.6kB/s)(5940KiB/136268msec) clat (usec): min=47, max=626086, avg=50546.33, stdev=33647.11 lat (usec): min=48, max=626089, avg=50558.15, stdev=33657.30 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 14484], 10.00th=[ 19792], 20.00th=[ 26346], | 30.00th=[ 31065], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 52167], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[147850], 99.50th=[173016], 99.90th=[238027], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 96, per=24.63%, avg=43.34, stdev=18.42, samples=267 iops : min= 1, max= 24, avg=10.18, stdev= 4.67, samples=267 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(6348KiB/136268msec); 0 zone resets clat (usec): min=1128, max=274609, avg=38254.70, stdev=39335.81 lat (usec): min=1129, max=274611, avg=38260.73, stdev=39342.34 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1401], 10.00th=[ 1991], 20.00th=[ 4817], | 30.00th=[ 9372], 40.00th=[ 17695], 50.00th=[ 26870], 60.00th=[ 36963], | 70.00th=[ 49546], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[117965], | 99.00th=[168821], 99.50th=[208667], 99.90th=[244319], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 103, per=25.12%, avg=46.22, stdev=20.24, samples=267 iops : min= 1, max= 25, avg=10.91, stdev= 5.10, samples=267 lat (usec) : 50=0.07%, 100=0.98%, 250=0.03%, 1000=0.03% lat (msec) : 2=5.31%, 4=3.91%, 10=7.16%, 20=9.38%, 50=37.24% lat (msec) : 100=28.68%, 250=7.16%, 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=4.89%, ctx=6516, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179288: Sat Jun 27 22:51:48 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6028KiB/132203msec) clat (usec): min=37, max=308836, avg=49161.51, stdev=33028.93 lat (usec): min=37, max=308837, avg=49164.31, stdev=33029.07 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11076], 10.00th=[ 17171], 20.00th=[ 24249], | 30.00th=[ 30016], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 50594], | 70.00th=[ 58983], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[164627], 99.50th=[204473], 99.90th=[254804], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 103, per=25.81%, avg=45.43, stdev=18.55, samples=259 iops : min= 1, max= 25, avg=10.71, stdev= 4.69, samples=259 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(6260KiB/132203msec); 0 zone resets clat (usec): min=847, max=639222, avg=36837.52, stdev=39729.15 lat (usec): min=848, max=639225, avg=36845.92, stdev=39732.69 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 1942], 20.00th=[ 4490], | 30.00th=[ 8455], 40.00th=[ 16188], 50.00th=[ 26608], 60.00th=[ 35914], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[149947], 99.50th=[168821], 99.90th=[278922], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 118, per=25.51%, avg=46.93, stdev=19.95, samples=260 iops : min= 1, max= 29, avg=11.08, stdev= 5.03, samples=260 lat (usec) : 50=0.39%, 100=1.56%, 250=0.10%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=5.18%, 4=4.07%, 10=7.81%, 20=9.41%, 50=37.04% lat (msec) : 100=27.54%, 250=6.58%, 500=0.13%, 750=0.03% cpu : usr=0.07%, sys=5.06%, ctx=6508, 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=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=179289: Sat Jun 27 22:51:48 2026 read: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6052KiB/133806msec) clat (usec): min=42, max=251530, avg=49477.53, stdev=30938.36 lat (usec): min=43, max=251532, avg=49480.56, stdev=30937.39 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 13435], 10.00th=[ 19792], 20.00th=[ 26346], | 30.00th=[ 31327], 40.00th=[ 36963], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[152044], 99.50th=[191890], 99.90th=[231736], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 7, max= 110, per=25.66%, avg=45.17, stdev=16.56, samples=261 iops : min= 1, max= 27, avg=10.64, stdev= 4.19, samples=261 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(6236KiB/133806msec); 0 zone resets clat (usec): min=915, max=632583, avg=37451.66, stdev=39818.49 lat (usec): min=915, max=632586, avg=37455.59, stdev=39818.35 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1385], 10.00th=[ 1713], 20.00th=[ 5014], | 30.00th=[ 9372], 40.00th=[ 17957], 50.00th=[ 27657], 60.00th=[ 36963], | 70.00th=[ 47973], 80.00th=[ 62129], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[166724], 99.50th=[183501], 99.90th=[214959], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 7, max= 120, per=25.17%, avg=46.31, stdev=19.99, samples=262 iops : min= 1, max= 30, avg=10.94, stdev= 5.07, samples=262 lat (usec) : 50=0.20%, 100=1.46%, 250=0.07%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.57%, 4=2.70%, 10=7.71%, 20=8.59%, 50=39.39% lat (msec) : 100=27.64%, 250=6.48%, 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=4.97%, ctx=6455, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=176KiB/s (180kB/s), 43.6KiB/s-45.6KiB/s (44.6kB/s-46.7kB/s), io=23.4MiB (24.6MB), run=131524-136268msec WRITE: bw=184KiB/s (189kB/s), 46.6KiB/s-47.9KiB/s (47.7kB/s-49.0kB/s), io=24.6MiB (25.7MB), run=131524-136268msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179282: Sat Jun 27 22:52:33 2026 read: IOPS=8, BW=33.2KiB/s (34.0kB/s)(5992KiB/180208msec) clat (msec): min=6, max=780, avg=47.67, stdev=44.24 lat (msec): min=6, max=780, avg=47.67, stdev=44.24 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 53], 80.00th=[ 71], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 190], 99.50th=[ 211], 99.90th=[ 284], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 127, per=25.78%, avg=34.03, stdev=22.44, samples=342 iops : min= 1, max= 31, avg= 7.81, stdev= 5.64, samples=342 write: IOPS=8, BW=34.9KiB/s (35.8kB/s)(6296KiB/180208msec); 0 zone resets clat (msec): min=12, max=312, avg=68.83, stdev=46.89 lat (msec): min=12, max=312, avg=68.83, stdev=46.89 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 79], 80.00th=[ 102], 90.00th=[ 134], 95.00th=[ 163], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 111, per=25.08%, avg=34.86, stdev=21.27, samples=351 iops : min= 1, max= 27, avg= 8.02, stdev= 5.34, samples=351 lat (msec) : 10=1.46%, 20=11.49%, 50=44.04%, 100=27.12%, 250=15.23% lat (msec) : 500=0.62%, 1000=0.03% cpu : usr=0.05%, sys=1.88%, ctx=4818, 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=179283: Sat Jun 27 22:52:33 2026 read: IOPS=8, BW=32.9KiB/s (33.7kB/s)(5940KiB/180494msec) clat (msec): min=5, max=615, avg=46.59, stdev=42.44 lat (msec): min=5, max=615, avg=46.59, stdev=42.44 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 67], 90.00th=[ 99], 95.00th=[ 134], | 99.00th=[ 201], 99.50th=[ 226], 99.90th=[ 284], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 119, per=25.56%, avg=33.74, stdev=23.31, samples=341 iops : min= 1, max= 29, avg= 7.75, stdev= 5.85, samples=341 write: IOPS=8, BW=35.2KiB/s (36.0kB/s)(6348KiB/180494msec); 0 zone resets clat (msec): min=10, max=348, avg=69.85, stdev=46.72 lat (msec): min=10, max=348, avg=69.85, stdev=46.72 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 68], | 70.00th=[ 83], 80.00th=[ 102], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 224], 99.50th=[ 264], 99.90th=[ 330], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 103, per=25.13%, avg=34.93, stdev=20.57, samples=352 iops : min= 1, max= 25, avg= 8.03, stdev= 5.16, samples=352 lat (msec) : 10=1.53%, 20=11.46%, 50=43.85%, 100=27.67%, 250=15.04% lat (msec) : 500=0.42%, 750=0.03% cpu : usr=0.07%, sys=1.94%, ctx=4991, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179284: Sat Jun 27 22:52:33 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(6028KiB/179927msec) clat (msec): min=6, max=298, avg=47.38, stdev=39.91 lat (msec): min=6, max=298, avg=47.38, stdev=39.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 70], 90.00th=[ 100], 95.00th=[ 138], | 99.00th=[ 190], 99.50th=[ 211], 99.90th=[ 279], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 143, per=25.45%, avg=33.59, stdev=22.16, samples=348 iops : min= 1, max= 35, avg= 7.70, stdev= 5.57, samples=348 write: IOPS=8, BW=34.8KiB/s (35.6kB/s)(6260KiB/179927msec); 0 zone resets clat (msec): min=12, max=626, avg=69.03, stdev=48.77 lat (msec): min=12, max=626, avg=69.04, stdev=48.77 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 80], 80.00th=[ 101], 90.00th=[ 134], 95.00th=[ 163], | 99.00th=[ 239], 99.50th=[ 292], 99.90th=[ 321], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 111, per=24.84%, avg=34.52, stdev=21.33, samples=352 iops : min= 1, max= 27, avg= 7.93, stdev= 5.35, samples=352 lat (msec) : 10=0.98%, 20=12.08%, 50=43.62%, 100=28.22%, 250=14.58% lat (msec) : 500=0.49%, 750=0.03% cpu : usr=0.06%, sys=2.02%, ctx=5024, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179285: Sat Jun 27 22:52:33 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(6052KiB/180638msec) clat (msec): min=5, max=277, avg=46.52, stdev=40.45 lat (msec): min=5, max=277, avg=46.52, stdev=40.45 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 101], 95.00th=[ 130], | 99.00th=[ 205], 99.50th=[ 222], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 7, max= 127, per=25.89%, avg=34.18, stdev=22.97, samples=342 iops : min= 1, max= 31, avg= 7.85, stdev= 5.77, samples=342 write: IOPS=8, BW=34.5KiB/s (35.3kB/s)(6236KiB/180638msec); 0 zone resets clat (msec): min=10, max=659, avg=70.43, stdev=50.45 lat (msec): min=10, max=659, avg=70.43, stdev=50.45 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 81], 80.00th=[ 107], 90.00th=[ 138], 95.00th=[ 169], | 99.00th=[ 239], 99.50th=[ 268], 99.90th=[ 342], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7, max= 103, per=24.52%, avg=34.08, stdev=20.77, samples=353 iops : min= 1, max= 25, avg= 7.82, stdev= 5.22, samples=353 lat (msec) : 10=1.73%, 20=12.60%, 50=43.00%, 100=26.50%, 250=15.69% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.06%, sys=2.01%, ctx=5036, 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=133KiB/s (136kB/s), 32.9KiB/s-33.5KiB/s (33.7kB/s-34.3kB/s), io=23.4MiB (24.6MB), run=179927-180638msec WRITE: bw=139KiB/s (143kB/s), 34.5KiB/s-35.2KiB/s (35.3kB/s-36.0kB/s), io=24.6MiB (25.7MB), run=179927-180638msec 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=179334: Sat Jun 27 22:53:25 2026 read: IOPS=9, BW=158KiB/s (161kB/s)(5920KiB/37558msec) clat (usec): min=49, max=263410, avg=54750.08, stdev=35431.07 lat (usec): min=50, max=263411, avg=54751.50, stdev=35431.07 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 16188], 20.00th=[ 28967], | 30.00th=[ 34866], 40.00th=[ 43254], 50.00th=[ 49546], 60.00th=[ 56361], | 70.00th=[ 66323], 80.00th=[ 81265], 90.00th=[ 99091], 95.00th=[119014], | 99.00th=[160433], 99.50th=[189793], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 61, max= 351, per=25.32%, avg=156.74, stdev=66.60, samples=73 iops : min= 3, max= 21, avg= 9.08, stdev= 4.22, samples=73 write: IOPS=10, BW=170KiB/s (174kB/s)(6368KiB/37558msec); 0 zone resets clat (usec): min=1845, max=211078, avg=42751.76, stdev=40993.50 lat (usec): min=1848, max=211079, avg=42756.38, stdev=40993.34 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 2638], 10.00th=[ 3621], 20.00th=[ 8160], | 30.00th=[ 13173], 40.00th=[ 20579], 50.00th=[ 31851], 60.00th=[ 41157], | 70.00th=[ 52167], 80.00th=[ 72877], 90.00th=[101188], 95.00th=[126354], | 99.00th=[185598], 99.50th=[196084], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 27, max= 379, per=26.02%, avg=169.41, stdev=80.29, samples=73 iops : min= 1, max= 23, avg= 9.88, stdev= 5.08, samples=73 lat (usec) : 50=0.13%, 100=3.65%, 250=0.13%, 500=0.13% lat (msec) : 2=1.04%, 4=4.56%, 10=7.16%, 20=9.77%, 50=33.20% lat (msec) : 100=30.34%, 250=9.77%, 500=0.13% cpu : usr=0.07%, sys=5.48%, ctx=1699, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179335: Sat Jun 27 22:53:25 2026 read: IOPS=9, BW=149KiB/s (153kB/s)(5744KiB/38466msec) clat (usec): min=35, max=256801, avg=58226.81, stdev=40235.57 lat (usec): min=36, max=256803, avg=58240.19, stdev=40241.84 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 68], 10.00th=[ 16581], 20.00th=[ 28181], | 30.00th=[ 36439], 40.00th=[ 44303], 50.00th=[ 51119], 60.00th=[ 62129], | 70.00th=[ 68682], 80.00th=[ 85459], 90.00th=[105382], 95.00th=[131597], | 99.00th=[206570], 99.50th=[244319], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 53, max= 383, per=23.87%, avg=147.75, stdev=65.47, samples=75 iops : min= 3, max= 23, avg= 8.52, stdev= 4.15, samples=75 write: IOPS=10, BW=170KiB/s (174kB/s)(6544KiB/38466msec); 0 zone resets clat (usec): min=1655, max=237615, avg=42499.27, stdev=40960.44 lat (usec): min=1657, max=237617, avg=42501.74, stdev=40960.47 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 3097], 10.00th=[ 4752], 20.00th=[ 8225], | 30.00th=[ 12387], 40.00th=[ 20055], 50.00th=[ 30540], 60.00th=[ 43254], | 70.00th=[ 54264], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[128451], | 99.00th=[187696], 99.50th=[214959], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 31, max= 345, per=25.83%, avg=168.16, stdev=65.35, samples=75 iops : min= 1, max= 21, avg= 9.81, stdev= 4.15, samples=75 lat (usec) : 50=0.13%, 100=2.86%, 250=0.52%, 1000=0.13% lat (msec) : 2=1.43%, 4=2.73%, 10=10.03%, 20=8.85%, 50=31.77% lat (msec) : 100=30.60%, 250=10.81%, 500=0.13% cpu : usr=0.06%, sys=5.43%, ctx=1724, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179336: Sat Jun 27 22:53:25 2026 read: IOPS=10, BW=162KiB/s (166kB/s)(6256KiB/38683msec) clat (usec): min=34, max=431626, avg=57336.96, stdev=42879.93 lat (usec): min=34, max=431627, avg=57338.41, stdev=42879.97 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 529], 20.00th=[ 28705], | 30.00th=[ 35914], 40.00th=[ 43779], 50.00th=[ 51119], 60.00th=[ 57410], | 70.00th=[ 67634], 80.00th=[ 79168], 90.00th=[106431], 95.00th=[130548], | 99.00th=[177210], 99.50th=[248513], 99.90th=[429917], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 31, max= 467, per=26.10%, avg=161.54, stdev=75.16, samples=76 iops : min= 1, max= 29, avg= 9.41, stdev= 4.83, samples=76 write: IOPS=9, BW=156KiB/s (160kB/s)(6032KiB/38683msec); 0 zone resets clat (usec): min=1679, max=231892, avg=42141.54, stdev=42574.63 lat (usec): min=1681, max=231895, avg=42144.26, stdev=42574.59 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1975], 10.00th=[ 2966], 20.00th=[ 8094], | 30.00th=[ 12780], 40.00th=[ 18220], 50.00th=[ 27657], 60.00th=[ 40109], | 70.00th=[ 50070], 80.00th=[ 70779], 90.00th=[110625], 95.00th=[125305], | 99.00th=[193987], 99.50th=[212861], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 31, max= 345, per=24.03%, avg=156.47, stdev=74.02, samples=75 iops : min= 1, max= 21, avg= 9.08, stdev= 4.70, samples=75 lat (usec) : 50=0.52%, 100=4.43%, 250=0.13%, 750=0.26% lat (msec) : 2=2.73%, 4=2.99%, 10=5.99%, 20=9.51%, 50=31.77% lat (msec) : 100=28.39%, 250=13.15%, 500=0.13% cpu : usr=0.06%, sys=5.31%, ctx=1771, 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=179337: Sat Jun 27 22:53:25 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(6032KiB/38058msec) clat (usec): min=57, max=294494, avg=54645.03, stdev=38049.86 lat (usec): min=57, max=294494, avg=54646.51, stdev=38049.87 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 74], 10.00th=[ 10814], 20.00th=[ 28967], | 30.00th=[ 35914], 40.00th=[ 40633], 50.00th=[ 49021], 60.00th=[ 55837], | 70.00th=[ 65799], 80.00th=[ 78119], 90.00th=[ 96994], 95.00th=[126354], | 99.00th=[183501], 99.50th=[206570], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 26, max= 351, per=25.43%, avg=157.41, stdev=69.17, samples=74 iops : min= 1, max= 21, avg= 9.14, stdev= 4.36, samples=74 write: IOPS=10, BW=164KiB/s (168kB/s)(6256KiB/38058msec); 0 zone resets clat (usec): min=1629, max=225660, avg=44003.72, stdev=41751.53 lat (usec): min=1632, max=225663, avg=44006.72, stdev=41751.65 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 14], 40.00th=[ 22], 50.00th=[ 31], 60.00th=[ 41], | 70.00th=[ 58], 80.00th=[ 74], 90.00th=[ 105], 95.00th=[ 124], | 99.00th=[ 194], 99.50th=[ 203], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 405, per=25.25%, avg=164.35, stdev=76.13, samples=74 iops : min= 1, max= 25, avg= 9.57, stdev= 4.87, samples=74 lat (usec) : 100=4.04%, 250=0.26%, 500=0.13% lat (msec) : 2=0.65%, 4=3.52%, 10=7.94%, 20=9.24%, 50=32.68% lat (msec) : 100=31.12%, 250=10.29%, 500=0.13% cpu : usr=0.05%, sys=5.05%, ctx=1684, 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=619KiB/s (634kB/s), 149KiB/s-162KiB/s (153kB/s-166kB/s), io=23.4MiB (24.5MB), run=37558-38683msec WRITE: bw=651KiB/s (667kB/s), 156KiB/s-170KiB/s (160kB/s-174kB/s), io=24.6MiB (25.8MB), run=37558-38683msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179339: Sat Jun 27 22:53:39 2026 read: IOPS=7, BW=116KiB/s (119kB/s)(5920KiB/50956msec) clat (msec): min=8, max=302, avg=53.36, stdev=46.28 lat (msec): min=8, max=302, avg=53.36, stdev=46.28 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 32], 50.00th=[ 39], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 72], 90.00th=[ 123], 95.00th=[ 153], | 99.00th=[ 211], 99.50th=[ 239], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 441, per=25.59%, avg=117.97, stdev=75.53, samples=97 iops : min= 1, max= 27, avg= 6.60, stdev= 4.76, samples=97 write: IOPS=7, BW=125KiB/s (128kB/s)(6368KiB/50956msec); 0 zone resets clat (msec): min=16, max=377, avg=78.10, stdev=52.12 lat (msec): min=16, max=377, avg=78.10, stdev=52.12 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 63], 60.00th=[ 77], | 70.00th=[ 90], 80.00th=[ 115], 90.00th=[ 150], 95.00th=[ 188], | 99.00th=[ 251], 99.50th=[ 279], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 31, max= 287, per=25.84%, avg=125.31, stdev=73.26, samples=99 iops : min= 1, max= 17, avg= 7.05, stdev= 4.64, samples=99 lat (msec) : 10=0.65%, 20=8.46%, 50=42.06%, 100=29.82%, 250=18.36% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.87%, ctx=1209, 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=179340: Sat Jun 27 22:53:39 2026 read: IOPS=7, BW=113KiB/s (116kB/s)(5744KiB/50686msec) clat (msec): min=6, max=295, avg=52.95, stdev=47.44 lat (msec): min=6, max=295, avg=52.96, stdev=47.44 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 45], | 70.00th=[ 57], 80.00th=[ 75], 90.00th=[ 113], 95.00th=[ 161], | 99.00th=[ 232], 99.50th=[ 253], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 29, max= 504, per=26.36%, avg=121.54, stdev=83.47, samples=93 iops : min= 1, max= 31, avg= 6.82, stdev= 5.26, samples=93 write: IOPS=8, BW=129KiB/s (132kB/s)(6544KiB/50686msec); 0 zone resets clat (msec): min=13, max=304, avg=77.22, stdev=49.56 lat (msec): min=13, max=304, avg=77.23, stdev=49.56 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 38], | 30.00th=[ 44], 40.00th=[ 52], 50.00th=[ 59], 60.00th=[ 72], | 70.00th=[ 97], 80.00th=[ 118], 90.00th=[ 146], 95.00th=[ 178], | 99.00th=[ 243], 99.50th=[ 266], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 320, per=26.48%, avg=128.45, stdev=73.95, samples=100 iops : min= 1, max= 20, avg= 7.25, stdev= 4.68, samples=100 lat (msec) : 10=0.91%, 20=8.85%, 50=41.80%, 100=27.60%, 250=20.18% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.82%, ctx=1180, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179341: Sat Jun 27 22:53:39 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(6256KiB/50743msec) clat (msec): min=7, max=281, avg=51.98, stdev=45.38 lat (msec): min=7, max=281, avg=51.98, stdev=45.38 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 71], 90.00th=[ 117], 95.00th=[ 150], | 99.00th=[ 232], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 415, per=27.70%, avg=127.71, stdev=89.14, samples=96 iops : min= 1, max= 25, avg= 7.21, stdev= 5.60, samples=96 write: IOPS=7, BW=119KiB/s (122kB/s)(6032KiB/50743msec); 0 zone resets clat (msec): min=17, max=351, avg=80.45, stdev=55.66 lat (msec): min=17, max=351, avg=80.45, stdev=55.66 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 28], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 52], 50.00th=[ 63], 60.00th=[ 73], | 70.00th=[ 90], 80.00th=[ 122], 90.00th=[ 159], 95.00th=[ 194], | 99.00th=[ 284], 99.50th=[ 317], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 380, per=25.22%, avg=122.34, stdev=71.04, samples=95 iops : min= 1, max= 23, avg= 6.85, stdev= 4.48, samples=95 lat (msec) : 10=0.65%, 20=7.94%, 50=44.79%, 100=26.43%, 250=19.27% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.95%, ctx=1230, 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=179342: Sat Jun 27 22:53:39 2026 read: IOPS=7, BW=116KiB/s (119kB/s)(6032KiB/51867msec) clat (msec): min=6, max=291, avg=56.92, stdev=51.37 lat (msec): min=6, max=291, avg=56.92, stdev=51.37 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 59], 80.00th=[ 85], 90.00th=[ 129], 95.00th=[ 174], | 99.00th=[ 243], 99.50th=[ 253], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 29, max= 441, per=25.88%, avg=119.29, stdev=77.06, samples=98 iops : min= 1, max= 27, avg= 6.67, stdev= 4.90, samples=98 write: IOPS=7, BW=121KiB/s (124kB/s)(6256KiB/51867msec); 0 zone resets clat (msec): min=15, max=317, avg=77.41, stdev=53.14 lat (msec): min=15, max=317, avg=77.41, stdev=53.14 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 61], 60.00th=[ 73], | 70.00th=[ 90], 80.00th=[ 111], 90.00th=[ 153], 95.00th=[ 188], | 99.00th=[ 262], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 318, per=25.18%, avg=122.13, stdev=76.26, samples=100 iops : min= 1, max= 19, avg= 6.86, stdev= 4.82, samples=100 lat (msec) : 10=0.65%, 20=7.03%, 50=44.14%, 100=27.47%, 250=19.53% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.85%, ctx=1234, 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=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=462KiB/s (473kB/s), 113KiB/s-123KiB/s (116kB/s-126kB/s), io=23.4MiB (24.5MB), run=50686-51867msec WRITE: bw=486KiB/s (498kB/s), 119KiB/s-129KiB/s (122kB/s-132kB/s), io=24.6MiB (25.8MB), run=50686-51867msec 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=179358: Sat Jun 27 22:53:59 2026 read: IOPS=1, BW=1494KiB/s (1530kB/s)(7168KiB/4798msec) clat (msec): min=117, max=947, avg=331.92, stdev=306.30 lat (msec): min=117, max=947, avg=331.92, stdev=306.30 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 129], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 161], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 506], 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= 2027, max= 4087, per=66.99%, avg=2447.20, stdev=916.72, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=1, BW=1067KiB/s (1093kB/s)(5120KiB/4798msec); 0 zone resets clat (msec): min=266, max=540, avg=420.57, stdev=109.76 lat (msec): min=267, max=540, avg=423.13, stdev=109.57 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2011, max= 4007, per=49.41%, avg=2527.25, stdev=986.64, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.25%, ctx=99, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179359: Sat Jun 27 22:53:59 2026 read: IOPS=0, BW=365KiB/s (374kB/s)(2048KiB/5605msec) clat (msec): min=144, max=183, avg=163.96, stdev=28.03 lat (msec): min=144, max=183, avg=163.96, stdev=28.04 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 144], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 184], 95.00th=[ 184], | 99.00th=[ 184], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 1464, max= 2003, per=47.45%, avg=1733.50, stdev=381.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1827KiB/s (1871kB/s)(10.0MiB/5605msec); 0 zone resets clat (msec): min=190, max=1318, avg=500.10, stdev=329.49 lat (msec): min=190, max=1319, avg=500.32, stdev=329.78 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 192], | 30.00th=[ 279], 40.00th=[ 376], 50.00th=[ 393], 60.00th=[ 451], | 70.00th=[ 535], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 2011, max= 4015, per=52.54%, avg=2687.33, stdev=1013.46, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=4.89%, ctx=146, 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=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=179360: Sat Jun 27 22:53:59 2026 read: IOPS=1, BW=1204KiB/s (1232kB/s)(6144KiB/5105msec) clat (msec): min=115, max=880, avg=404.90, stdev=307.45 lat (msec): min=115, max=880, avg=404.90, stdev=307.45 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 207], 50.00th=[ 207], 60.00th=[ 485], | 70.00th=[ 609], 80.00th=[ 609], 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= 2003, max= 4063, per=69.26%, avg=2530.25, stdev=1022.04, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1204KiB/s (1232kB/s)(6144KiB/5105msec); 0 zone resets clat (msec): min=140, max=747, avg=413.57, stdev=235.62 lat (msec): min=140, max=747, avg=413.69, stdev=235.62 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 481], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1678, max= 2048, per=38.42%, avg=1965.40, stdev=160.89, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=2.51%, ctx=77, 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=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=179361: Sat Jun 27 22:53:59 2026 read: IOPS=0, BW=931KiB/s (953kB/s)(5120KiB/5501msec) clat (msec): min=102, max=772, avg=326.31, stdev=274.97 lat (msec): min=102, max=772, avg=326.31, stdev=274.97 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 2011, max= 6023, per=100.00%, avg=4017.00, stdev=2836.91, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1303KiB/s (1334kB/s)(7168KiB/5501msec); 0 zone resets clat (msec): min=272, max=796, avg=533.92, stdev=186.22 lat (msec): min=272, max=796, avg=534.22, stdev=186.23 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 397], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 550], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 709], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1426, max= 2043, per=37.57%, avg=1921.67, stdev=243.82, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=25.00%, 500=33.33%, 750=25.00%, 1000=16.67% cpu : usr=0.05%, sys=4.04%, ctx=89, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3654KiB/s (3742kB/s), 365KiB/s-1494KiB/s (374kB/s-1530kB/s), io=20.0MiB (20.0MB), run=4798-5605msec WRITE: bw=5115KiB/s (5238kB/s), 1067KiB/s-1827KiB/s (1093kB/s-1871kB/s), io=28.0MiB (29.4MB), run=4798-5605msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179362: Sat Jun 27 22:53:59 2026 read: IOPS=2, BW=2123KiB/s (2174kB/s)(7168KiB/3377msec) clat (usec): min=626, max=462398, avg=243252.00, stdev=141351.68 lat (usec): min=627, max=462399, avg=243257.95, stdev=141352.85 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[175113], | 30.00th=[212861], 40.00th=[212861], 50.00th=[252707], 60.00th=[278922], | 70.00th=[278922], 80.00th=[320865], 90.00th=[463471], 95.00th=[463471], | 99.00th=[463471], 99.50th=[463471], 99.90th=[463471], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 1917, max= 3079, per=59.05%, avg=2218.60, stdev=483.64, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1516KiB/s (1553kB/s)(5120KiB/3377msec); 0 zone resets clat (msec): min=212, max=372, avg=297.89, stdev=57.09 lat (msec): min=214, max=372, avg=298.20, stdev=56.67 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 1917, max= 4087, per=50.85%, avg=2674.33, stdev=1224.47, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=66.67% cpu : usr=0.00%, sys=16.68%, ctx=274, 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=179363: Sat Jun 27 22:53:59 2026 read: IOPS=0, BW=392KiB/s (402kB/s)(2048KiB/5219msec) clat (msec): min=213, max=511, avg=362.30, stdev=210.39 lat (msec): min=213, max=511, avg=362.30, stdev=210.39 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 1630, max= 1917, per=47.21%, avg=1773.50, stdev=202.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1962KiB/s (2009kB/s)(10.0MiB/5219msec); 0 zone resets clat (msec): min=259, max=847, avg=442.02, stdev=212.21 lat (msec): min=259, max=851, avg=442.54, stdev=212.87 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 268], | 30.00th=[ 317], 40.00th=[ 321], 50.00th=[ 334], 60.00th=[ 363], | 70.00th=[ 380], 80.00th=[ 567], 90.00th=[ 776], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1992, max= 4071, per=49.51%, avg=2603.71, stdev=991.60, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=8.33%, 500=58.33%, 750=16.67%, 1000=16.67% cpu : usr=0.10%, sys=10.87%, ctx=216, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179364: Sat Jun 27 22:53:59 2026 read: IOPS=1, BW=1127KiB/s (1154kB/s)(6144KiB/5451msec) clat (msec): min=160, max=782, avg=332.65, stdev=229.19 lat (msec): min=160, max=782, avg=332.66, stdev=229.19 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 247], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 2015, max= 3984, per=66.97%, avg=2516.25, stdev=978.54, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1127KiB/s (1154kB/s)(6144KiB/5451msec); 0 zone resets clat (msec): min=241, max=1281, avg=516.34, stdev=386.62 lat (msec): min=241, max=1281, avg=516.49, stdev=386.62 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 401], | 70.00th=[ 523], 80.00th=[ 523], 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= 2015, max= 2043, per=38.60%, avg=2030.20, stdev=13.08, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.07%, sys=8.90%, ctx=227, 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=179365: Sat Jun 27 22:53:59 2026 read: IOPS=1, BW=1051KiB/s (1076kB/s)(5120KiB/4872msec) clat (usec): min=493, max=508736, avg=153234.79, stdev=208884.39 lat (usec): min=494, max=508738, avg=153236.31, stdev=208884.54 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[ 494], | 30.00th=[ 1647], 40.00th=[ 1647], 50.00th=[111674], 60.00th=[111674], | 70.00th=[143655], 80.00th=[143655], 90.00th=[509608], 95.00th=[509608], | 99.00th=[509608], 99.50th=[509608], 99.90th=[509608], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 1917, max= 5976, per=100.00%, avg=3946.50, stdev=2870.15, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1471KiB/s (1507kB/s)(7168KiB/4872msec); 0 zone resets clat (msec): min=259, max=1010, avg=536.94, stdev=260.53 lat (msec): min=259, max=1010, avg=537.04, stdev=260.56 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 535], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 651], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 2015, max= 4087, per=46.44%, avg=2442.20, stdev=919.53, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=16.67%, 500=25.00%, 750=33.33%, 2000=8.33% cpu : usr=0.00%, sys=9.18%, ctx=179, 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=3757KiB/s (3847kB/s), 392KiB/s-2123KiB/s (402kB/s-2174kB/s), io=20.0MiB (20.0MB), run=3377-5451msec WRITE: bw=5260KiB/s (5386kB/s), 1127KiB/s-1962KiB/s (1154kB/s-2009kB/s), io=28.0MiB (29.4MB), run=3377-5451msec 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=179373: Sat Jun 27 22:54:20 2026 read: IOPS=0, BW=3202KiB/s (3279kB/s)(12.0MiB/3838msec) clat (msec): min=499, max=2205, avg=1250.12, stdev=871.16 lat (msec): min=499, max=2205, avg=1250.12, stdev=871.16 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1045], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 8047, max= 8175, per=100.00%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=9.67%, ctx=197, 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=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=179377: Sat Jun 27 22:54:20 2026 read: IOPS=0, BW=671KiB/s (687kB/s)(4096KiB/6106msec) clat (nsec): min=4904.5M, max=4904.5M, avg=4904481588.00, stdev= 0.00 lat (nsec): min=4904.5M, max=4904.5M, avg=4904484365.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4933], 5.00th=[ 4933], 10.00th=[ 4933], 20.00th=[ 4933], | 30.00th=[ 4933], 40.00th=[ 4933], 50.00th=[ 4933], 60.00th=[ 4933], | 70.00th=[ 4933], 80.00th=[ 4933], 90.00th=[ 4933], 95.00th=[ 4933], | 99.00th=[ 4933], 99.50th=[ 4933], 99.90th=[ 4933], 99.95th=[ 4933], | 99.99th=[ 4933] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1342KiB/s (1374kB/s)(8192KiB/6106msec); 0 zone resets clat (msec): min=300, max=691, avg=496.10, stdev=276.35 lat (msec): min=301, max=692, avg=496.73, stdev=276.46 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=5.80%, ctx=850, 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=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=179378: Sat Jun 27 22:54:20 2026 write: IOPS=0, BW=1751KiB/s (1793kB/s)(12.0MiB/7019msec); 0 zone resets clat (msec): min=570, max=5630, avg=2263.86, stdev=2915.86 lat (msec): min=571, max=5631, avg=2264.33, stdev=2915.91 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 5604], 80.00th=[ 5604], 90.00th=[ 5604], 95.00th=[ 5604], | 99.00th=[ 5604], 99.50th=[ 5604], 99.90th=[ 5604], 99.95th=[ 5604], | 99.99th=[ 5604] bw ( KiB/s): min= 7684, max= 7922, per=100.00%, avg=7803.00, stdev=168.29, 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=1.41%, ctx=52, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179380: Sat Jun 27 22:54:20 2026 write: IOPS=0, BW=1818KiB/s (1862kB/s)(12.0MiB/6758msec); 0 zone resets clat (msec): min=365, max=5514, avg=2110.18, stdev=2948.49 lat (msec): min=366, max=5517, avg=2112.46, stdev=2948.86 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 5537], 80.00th=[ 5537], 90.00th=[ 5537], 95.00th=[ 5537], | 99.00th=[ 5537], 99.50th=[ 5537], 99.90th=[ 5537], 99.95th=[ 5537], | 99.99th=[ 5537] bw ( KiB/s): min= 8078, max= 8094, per=100.00%, avg=8086.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.03%, sys=1.88%, ctx=68, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2683KiB/s (2748kB/s), 671KiB/s-3202KiB/s (687kB/s-3279kB/s), io=16.0MiB (16.8MB), run=3838-6106msec WRITE: bw=4668KiB/s (4781kB/s), 1342KiB/s-1818KiB/s (1374kB/s-1862kB/s), io=32.0MiB (33.6MB), run=6106-7019msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179374: Sat Jun 27 22:54:20 2026 read: IOPS=0, BW=1811KiB/s (1855kB/s)(12.0MiB/6785msec) clat (msec): min=260, max=5397, avg=2207.44, stdev=2784.86 lat (msec): min=260, max=5397, avg=2207.44, stdev=2784.86 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 5403], 80.00th=[ 5403], 90.00th=[ 5403], 95.00th=[ 5403], | 99.00th=[ 5403], 99.50th=[ 5403], 99.90th=[ 5403], 99.95th=[ 5403], | 99.99th=[ 5403] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, 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=0.00%, sys=1.62%, ctx=62, 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=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=179375: Sat Jun 27 22:54:20 2026 read: IOPS=0, BW=608KiB/s (622kB/s)(4096KiB/6741msec) clat (nsec): min=5095.1M, max=5095.1M, avg=5095144460.00, stdev= 0.00 lat (nsec): min=5095.1M, max=5095.1M, avg=5095147660.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 5067], 5.00th=[ 5067], 10.00th=[ 5067], 20.00th=[ 5067], | 30.00th=[ 5067], 40.00th=[ 5067], 50.00th=[ 5067], 60.00th=[ 5067], | 70.00th=[ 5067], 80.00th=[ 5067], 90.00th=[ 5067], 95.00th=[ 5067], | 99.00th=[ 5067], 99.50th=[ 5067], 99.90th=[ 5067], 99.95th=[ 5067], | 99.99th=[ 5067] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1215KiB/s (1244kB/s)(8192KiB/6741msec); 0 zone resets clat (msec): min=537, max=1004, avg=771.20, stdev=330.00 lat (msec): min=538, max=1005, avg=771.64, stdev=330.04 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.66%, ctx=49, 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=179376: Sat Jun 27 22:54:20 2026 write: IOPS=0, BW=1692KiB/s (1732kB/s)(12.0MiB/7263msec); 0 zone resets clat (msec): min=142, max=6519, avg=2387.61, stdev=3582.47 lat (msec): min=143, max=6519, avg=2388.07, stdev=3582.51 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 6544], 80.00th=[ 6544], 90.00th=[ 6544], 95.00th=[ 6544], | 99.00th=[ 6544], 99.50th=[ 6544], 99.90th=[ 6544], 99.95th=[ 6544], | 99.99th=[ 6544] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.79%, ctx=79, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179379: Sat Jun 27 22:54:20 2026 write: IOPS=0, BW=1803KiB/s (1847kB/s)(12.0MiB/6814msec); 0 zone resets clat (msec): min=619, max=3915, avg=2225.19, stdev=1649.80 lat (msec): min=622, max=3916, avg=2226.41, stdev=1648.73 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 2140], 50.00th=[ 2140], 60.00th=[ 2140], | 70.00th=[ 3910], 80.00th=[ 3910], 90.00th=[ 3910], 95.00th=[ 3910], | 99.00th=[ 3910], 99.50th=[ 3910], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 3910] bw ( KiB/s): min= 8047, max= 8192, per=100.00%, avg=8119.50, stdev=102.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, >=2000=66.67% cpu : usr=0.03%, sys=1.48%, ctx=50, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2415KiB/s (2473kB/s), 608KiB/s-1811KiB/s (622kB/s-1855kB/s), io=16.0MiB (16.8MB), run=6741-6785msec WRITE: bw=4512KiB/s (4620kB/s), 1215KiB/s-1803KiB/s (1244kB/s-1847kB/s), io=32.0MiB (33.6MB), run=6741-7263msec