== sanity test 398b: DIO and buffer IO race ============== 18:20:17 (1787437217) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.2306 s, 9.6 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=144602: Sat Aug 22 18:22:54 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5992KiB/140150msec) clat (usec): min=34, max=679904, avg=47303.31, stdev=40180.30 lat (usec): min=35, max=679905, avg=47312.79, stdev=40195.51 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 9896], 20.00th=[ 21365], | 30.00th=[ 27132], 40.00th=[ 32113], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[111674], | 99.00th=[177210], 99.50th=[223347], 99.90th=[341836], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 103, per=25.39%, avg=43.16, stdev=18.57, samples=270 iops : min= 1, max= 25, avg=10.13, stdev= 4.68, samples=270 write: IOPS=11, BW=44.9KiB/s (46.0kB/s)(6296KiB/140150msec); 0 zone resets clat (usec): min=1037, max=512684, avg=43691.84, stdev=48796.81 lat (usec): min=1038, max=512686, avg=43700.17, stdev=48800.56 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1369], 10.00th=[ 2089], 20.00th=[ 4621], | 30.00th=[ 9241], 40.00th=[ 18744], 50.00th=[ 29230], 60.00th=[ 41681], | 70.00th=[ 55837], 80.00th=[ 73925], 90.00th=[104334], 95.00th=[137364], | 99.00th=[212861], 99.50th=[250610], 99.90th=[379585], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 7, max= 120, per=25.15%, avg=44.77, stdev=20.86, samples=273 iops : min= 1, max= 30, avg=10.53, stdev= 5.27, samples=273 lat (usec) : 50=0.46%, 100=3.35%, 250=0.49%, 500=0.13%, 750=0.16% lat (usec) : 1000=0.03% lat (msec) : 2=5.01%, 4=4.33%, 10=7.06%, 20=8.59%, 50=35.74% lat (msec) : 100=25.13%, 250=9.05%, 500=0.39%, 750=0.07% cpu : usr=0.07%, sys=5.09%, ctx=6765, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144603: Sat Aug 22 18:22:54 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5940KiB/141129msec) clat (usec): min=38, max=505282, avg=47393.58, stdev=37338.75 lat (usec): min=39, max=505286, avg=47397.09, stdev=37340.21 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 73], 10.00th=[ 13042], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 57410], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[162530], 99.50th=[177210], 99.90th=[316670], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 7, max= 95, per=24.72%, avg=42.03, stdev=18.96, samples=274 iops : min= 1, max= 23, avg= 9.84, stdev= 4.78, samples=274 write: IOPS=11, BW=44.0KiB/s (46.1kB/s)(6348KiB/141129msec); 0 zone resets clat (usec): min=1092, max=704306, avg=44265.65, stdev=51452.56 lat (usec): min=1093, max=704308, avg=44270.54, stdev=51450.49 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1450], 10.00th=[ 2540], 20.00th=[ 5342], | 30.00th=[ 9503], 40.00th=[ 19268], 50.00th=[ 30278], 60.00th=[ 41681], | 70.00th=[ 55313], 80.00th=[ 73925], 90.00th=[104334], 95.00th=[133694], | 99.00th=[221250], 99.50th=[278922], 99.90th=[530580], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 111, per=24.95%, avg=44.40, stdev=22.47, samples=277 iops : min= 1, max= 27, avg=10.44, stdev= 5.66, samples=277 lat (usec) : 50=0.13%, 100=3.35%, 250=0.49%, 750=0.10%, 1000=0.07% lat (msec) : 2=4.36%, 4=4.04%, 10=7.81%, 20=8.95%, 50=35.42% lat (msec) : 100=25.91%, 250=8.89%, 500=0.39%, 750=0.10% cpu : usr=0.08%, sys=5.14%, ctx=6796, 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=144604: Sat Aug 22 18:22:54 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(6028KiB/140850msec) clat (usec): min=34, max=371942, avg=44866.80, stdev=36692.06 lat (usec): min=34, max=371943, avg=44873.41, stdev=36686.96 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 70], 10.00th=[ 277], 20.00th=[ 20317], | 30.00th=[ 26084], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[164627], 99.50th=[229639], 99.90th=[312476], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 111, per=25.30%, avg=43.01, stdev=20.99, samples=273 iops : min= 1, max= 27, avg=10.09, stdev= 5.28, samples=273 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(6260KiB/140850msec); 0 zone resets clat (usec): min=991, max=908136, avg=46466.13, stdev=52970.70 lat (usec): min=993, max=908137, avg=46473.58, stdev=52966.94 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1385], 10.00th=[ 2245], 20.00th=[ 4883], | 30.00th=[ 9634], 40.00th=[ 20317], 50.00th=[ 32113], 60.00th=[ 45876], | 70.00th=[ 58983], 80.00th=[ 78119], 90.00th=[108528], 95.00th=[141558], | 99.00th=[219153], 99.50th=[244319], 99.90th=[325059], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 109, per=24.81%, avg=44.16, stdev=20.74, samples=276 iops : min= 1, max= 27, avg=10.38, stdev= 5.23, samples=276 lat (usec) : 50=0.29%, 100=4.07%, 250=0.52%, 500=0.23%, 1000=0.07% lat (msec) : 2=4.72%, 4=4.17%, 10=6.97%, 20=8.79%, 50=35.38% lat (msec) : 100=24.84%, 250=9.60%, 500=0.33%, 1000=0.03% cpu : usr=0.09%, sys=4.83%, ctx=6754, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144606: Sat Aug 22 18:22:54 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(6052KiB/138434msec) clat (usec): min=31, max=204848, avg=43377.99, stdev=32194.37 lat (usec): min=31, max=204848, avg=43380.00, stdev=32194.31 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 174], 20.00th=[ 19530], | 30.00th=[ 25035], 40.00th=[ 30278], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 54789], 80.00th=[ 65799], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[145753], 99.50th=[160433], 99.90th=[193987], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 7, max= 111, per=25.85%, avg=43.95, stdev=21.06, samples=268 iops : min= 1, max= 27, avg=10.32, stdev= 5.29, samples=268 write: IOPS=11, BW=45.0KiB/s (46.1kB/s)(6236KiB/138434msec); 0 zone resets clat (usec): min=1032, max=914751, avg=46361.10, stdev=53336.13 lat (usec): min=1033, max=914753, avg=46363.36, stdev=53335.97 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1401], 10.00th=[ 2057], 20.00th=[ 4621], | 30.00th=[ 10028], 40.00th=[ 19792], 50.00th=[ 33162], 60.00th=[ 45351], | 70.00th=[ 59507], 80.00th=[ 76022], 90.00th=[111674], 95.00th=[139461], | 99.00th=[212861], 99.50th=[240124], 99.90th=[392168], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 134, per=25.34%, avg=45.10, stdev=21.34, samples=269 iops : min= 1, max= 33, avg=10.62, stdev= 5.36, samples=269 lat (usec) : 50=0.33%, 100=4.10%, 250=0.65%, 500=0.13%, 750=0.20% lat (usec) : 1000=0.07% lat (msec) : 2=4.98%, 4=4.59%, 10=6.15%, 20=9.31%, 50=34.51% lat (msec) : 100=25.75%, 250=9.02%, 500=0.20%, 1000=0.03% cpu : usr=0.09%, sys=4.90%, ctx=6787, 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=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=170KiB/s (174kB/s), 42.1KiB/s-43.7KiB/s (43.1kB/s-44.8kB/s), io=23.4MiB (24.6MB), run=138434-141129msec WRITE: bw=178KiB/s (182kB/s), 44.4KiB/s-45.0KiB/s (45.5kB/s-46.1kB/s), io=24.6MiB (25.7MB), run=138434-141129msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144607: Sat Aug 22 18:25:44 2026 read: IOPS=4, BW=19.4KiB/s (19.8kB/s)(5992KiB/309260msec) clat (msec): min=5, max=726, avg=40.71, stdev=43.70 lat (msec): min=5, max=726, avg=40.71, stdev=43.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 120], | 99.00th=[ 215], 99.50th=[ 257], 99.90th=[ 430], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 111, per=29.47%, avg=22.69, stdev=16.11, samples=507 iops : min= 1, max= 27, avg= 5.01, stdev= 4.05, samples=507 write: IOPS=5, BW=20.4KiB/s (20.8kB/s)(6296KiB/309260msec); 0 zone resets clat (msec): min=37, max=533, avg=157.49, stdev=73.84 lat (msec): min=37, max=533, avg=157.50, stdev=73.84 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 96], | 30.00th=[ 112], 40.00th=[ 128], 50.00th=[ 144], 60.00th=[ 163], | 70.00th=[ 182], 80.00th=[ 209], 90.00th=[ 255], 95.00th=[ 305], | 99.00th=[ 401], 99.50th=[ 439], 99.90th=[ 527], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 48, per=24.99%, avg=19.99, stdev= 9.15, samples=601 iops : min= 1, max= 12, avg= 4.33, stdev= 2.33, samples=601 lat (msec) : 10=2.02%, 20=13.64%, 50=22.56%, 100=18.59%, 250=37.40% lat (msec) : 500=5.66%, 750=0.13% cpu : usr=0.05%, sys=1.08%, ctx=5103, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144608: Sat Aug 22 18:25:44 2026 read: IOPS=4, BW=19.1KiB/s (19.5kB/s)(5940KiB/311201msec) clat (msec): min=6, max=751, avg=40.82, stdev=42.90 lat (msec): min=6, max=751, avg=40.82, stdev=42.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 85], 95.00th=[ 113], | 99.00th=[ 213], 99.50th=[ 239], 99.90th=[ 414], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 103, per=29.34%, avg=22.59, stdev=15.14, samples=505 iops : min= 1, max= 25, avg= 5.00, stdev= 3.80, samples=505 write: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6348KiB/311201msec); 0 zone resets clat (msec): min=35, max=656, avg=157.64, stdev=76.59 lat (msec): min=35, max=656, avg=157.64, stdev=76.59 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 96], | 30.00th=[ 113], 40.00th=[ 127], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 180], 80.00th=[ 211], 90.00th=[ 257], 95.00th=[ 305], | 99.00th=[ 439], 99.50th=[ 460], 99.90th=[ 550], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7, max= 55, per=25.07%, avg=20.05, stdev= 9.28, samples=604 iops : min= 1, max= 13, avg= 4.35, stdev= 2.36, samples=604 lat (msec) : 10=1.60%, 20=13.80%, 50=22.04%, 100=19.27%, 250=37.27% lat (msec) : 500=5.89%, 750=0.10%, 1000=0.03% cpu : usr=0.05%, sys=1.07%, ctx=5180, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144609: Sat Aug 22 18:25:44 2026 read: IOPS=4, BW=19.5KiB/s (19.9kB/s)(6028KiB/309482msec) clat (msec): min=5, max=368, avg=40.63, stdev=39.31 lat (msec): min=5, max=368, avg=40.63, stdev=39.30 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 85], 95.00th=[ 113], | 99.00th=[ 207], 99.50th=[ 243], 99.90th=[ 338], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 95, per=28.39%, avg=21.86, stdev=15.34, samples=529 iops : min= 1, max= 23, avg= 4.80, stdev= 3.85, samples=529 write: IOPS=5, BW=20.2KiB/s (20.7kB/s)(6260KiB/309482msec); 0 zone resets clat (msec): min=36, max=880, avg=158.40, stdev=78.14 lat (msec): min=36, max=880, avg=158.40, stdev=78.14 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 96], | 30.00th=[ 112], 40.00th=[ 128], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 211], 90.00th=[ 255], 95.00th=[ 296], | 99.00th=[ 426], 99.50th=[ 456], 99.90th=[ 651], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 48, per=25.11%, avg=20.09, stdev= 9.33, samples=596 iops : min= 1, max= 12, avg= 4.36, stdev= 2.37, samples=596 lat (msec) : 10=2.18%, 20=13.90%, 50=21.35%, 100=19.73%, 250=36.91% lat (msec) : 500=5.73%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.05%, ctx=5149, 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=144610: Sat Aug 22 18:25:44 2026 read: IOPS=4, BW=19.6KiB/s (20.0kB/s)(6052KiB/309468msec) clat (msec): min=6, max=430, avg=40.60, stdev=39.57 lat (msec): min=6, max=430, avg=40.60, stdev=39.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 55], 90.00th=[ 84], 95.00th=[ 114], | 99.00th=[ 224], 99.50th=[ 241], 99.90th=[ 338], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 110, per=29.28%, avg=22.55, stdev=15.56, samples=516 iops : min= 1, max= 27, avg= 4.98, stdev= 3.92, samples=516 write: IOPS=5, BW=20.2KiB/s (20.6kB/s)(6236KiB/309468msec); 0 zone resets clat (msec): min=40, max=885, avg=158.83, stdev=77.56 lat (msec): min=40, max=885, avg=158.84, stdev=77.56 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 80], 20.00th=[ 97], | 30.00th=[ 112], 40.00th=[ 128], 50.00th=[ 146], 60.00th=[ 163], | 70.00th=[ 182], 80.00th=[ 207], 90.00th=[ 253], 95.00th=[ 300], | 99.00th=[ 422], 99.50th=[ 464], 99.90th=[ 592], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 47, per=24.75%, avg=19.80, stdev= 9.06, samples=602 iops : min= 1, max= 11, avg= 4.29, stdev= 2.30, samples=602 lat (msec) : 10=1.60%, 20=13.90%, 50=23.08%, 100=18.65%, 250=37.27% lat (msec) : 500=5.31%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5168, 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=77.2KiB/s (79.0kB/s), 19.1KiB/s-19.6KiB/s (19.5kB/s-20.0kB/s), io=23.4MiB (24.6MB), run=309260-311201msec WRITE: bw=80.8KiB/s (82.7kB/s), 20.2KiB/s-20.4KiB/s (20.6kB/s-20.9kB/s), io=24.6MiB (25.7MB), run=309260-311201msec 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=144671: Sat Aug 22 18:26:30 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(5920KiB/34850msec) clat (usec): min=31, max=493987, avg=47775.92, stdev=50831.96 lat (usec): min=31, max=493988, avg=47778.30, stdev=50832.10 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 62], 10.00th=[ 73], 20.00th=[ 297], | 30.00th=[ 24773], 40.00th=[ 32375], 50.00th=[ 40633], 60.00th=[ 49021], | 70.00th=[ 60031], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[295699], 99.50th=[396362], 99.90th=[492831], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 31, max= 380, per=25.05%, avg=172.12, stdev=82.15, samples=66 iops : min= 1, max= 23, avg= 9.95, stdev= 5.19, samples=66 write: IOPS=11, BW=183KiB/s (187kB/s)(6368KiB/34850msec); 0 zone resets clat (usec): min=1516, max=288834, avg=42305.89, stdev=45548.12 lat (usec): min=1517, max=288835, avg=42309.04, stdev=45547.65 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1942], 10.00th=[ 2900], 20.00th=[ 6063], | 30.00th=[ 9372], 40.00th=[ 15139], 50.00th=[ 26346], 60.00th=[ 39060], | 70.00th=[ 55837], 80.00th=[ 74974], 90.00th=[103285], 95.00th=[131597], | 99.00th=[202376], 99.50th=[270533], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 28, max= 416, per=25.86%, avg=186.95, stdev=82.09, samples=66 iops : min= 1, max= 26, avg=10.88, stdev= 5.21, samples=66 lat (usec) : 50=0.78%, 100=7.16%, 250=1.56%, 500=0.26%, 750=0.26% lat (msec) : 2=3.12%, 4=4.95%, 10=9.64%, 20=7.94%, 50=27.73% lat (msec) : 100=27.47%, 250=8.20%, 500=0.91% cpu : usr=0.08%, sys=4.99%, ctx=1514, 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=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=144672: Sat Aug 22 18:26:30 2026 read: IOPS=10, BW=167KiB/s (171kB/s)(5744KiB/34384msec) clat (usec): min=42, max=252357, avg=49327.77, stdev=38285.61 lat (usec): min=42, max=252359, avg=49329.31, stdev=38285.77 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 70], 10.00th=[ 85], 20.00th=[ 20841], | 30.00th=[ 29492], 40.00th=[ 36963], 50.00th=[ 45351], 60.00th=[ 54789], | 70.00th=[ 64226], 80.00th=[ 74974], 90.00th=[ 91751], 95.00th=[120062], | 99.00th=[181404], 99.50th=[225444], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 29, max= 375, per=24.29%, avg=166.88, stdev=78.52, samples=67 iops : min= 1, max= 23, avg= 9.63, stdev= 4.98, samples=67 write: IOPS=11, BW=190KiB/s (195kB/s)(6544KiB/34384msec); 0 zone resets clat (usec): min=1503, max=299723, avg=39700.87, stdev=43122.47 lat (usec): min=1505, max=299726, avg=39706.46, stdev=43122.31 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2147], 10.00th=[ 3195], 20.00th=[ 5932], | 30.00th=[ 9765], 40.00th=[ 15139], 50.00th=[ 26608], 60.00th=[ 36963], | 70.00th=[ 49021], 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[115868], | 99.00th=[175113], 99.50th=[254804], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 29, max= 573, per=26.38%, avg=190.73, stdev=93.76, samples=67 iops : min= 1, max= 35, avg=11.12, stdev= 5.91, samples=67 lat (usec) : 50=0.65%, 100=4.95%, 250=1.56%, 500=0.13%, 750=0.26% lat (msec) : 2=2.60%, 4=4.95%, 10=9.38%, 20=8.20%, 50=31.12% lat (msec) : 100=28.13%, 250=7.55%, 500=0.52% cpu : usr=0.10%, sys=5.40%, ctx=1567, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144673: Sat Aug 22 18:26:30 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(6256KiB/34546msec) clat (usec): min=41, max=410892, avg=48114.19, stdev=44015.23 lat (usec): min=41, max=410893, avg=48116.01, stdev=44015.24 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 63], 10.00th=[ 76], 20.00th=[ 237], | 30.00th=[ 28705], 40.00th=[ 35390], 50.00th=[ 42730], 60.00th=[ 51119], | 70.00th=[ 61604], 80.00th=[ 74974], 90.00th=[ 94897], 95.00th=[115868], | 99.00th=[225444], 99.50th=[246416], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 63, max= 508, per=26.78%, avg=183.97, stdev=83.48, samples=67 iops : min= 3, max= 31, avg=10.70, stdev= 5.29, samples=67 write: IOPS=10, BW=175KiB/s (179kB/s)(6032KiB/34546msec); 0 zone resets clat (usec): min=1647, max=255334, avg=41085.50, stdev=43429.07 lat (usec): min=1650, max=255335, avg=41088.81, stdev=43428.63 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2311], 10.00th=[ 3523], 20.00th=[ 5538], | 30.00th=[ 8979], 40.00th=[ 15533], 50.00th=[ 27395], 60.00th=[ 39584], | 70.00th=[ 49546], 80.00th=[ 72877], 90.00th=[ 99091], 95.00th=[124257], | 99.00th=[214959], 99.50th=[252707], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 31, max= 381, per=23.98%, avg=173.38, stdev=83.06, samples=68 iops : min= 1, max= 23, avg=10.03, stdev= 5.25, samples=68 lat (usec) : 50=0.78%, 100=7.29%, 250=2.21%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=1.69%, 4=4.43%, 10=10.55%, 20=7.16%, 50=29.82% lat (msec) : 100=26.56%, 250=8.59%, 500=0.39% cpu : usr=0.08%, sys=4.92%, ctx=1491, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144674: Sat Aug 22 18:26:30 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6032KiB/34412msec) clat (usec): min=41, max=355269, avg=49047.46, stdev=44398.68 lat (usec): min=41, max=355271, avg=49049.34, stdev=44398.64 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 799], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 42206], 60.00th=[ 52691], | 70.00th=[ 61604], 80.00th=[ 74974], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[183501], 99.50th=[354419], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 61, max= 320, per=26.21%, avg=180.03, stdev=73.32, samples=65 iops : min= 3, max= 20, avg=10.45, stdev= 4.65, samples=65 write: IOPS=11, BW=182KiB/s (186kB/s)(6256KiB/34412msec); 0 zone resets clat (usec): min=1536, max=446894, avg=40370.96, stdev=49582.98 lat (usec): min=1538, max=446896, avg=40373.70, stdev=49582.96 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2040], 10.00th=[ 2835], 20.00th=[ 5473], | 30.00th=[ 8586], 40.00th=[ 14746], 50.00th=[ 24511], 60.00th=[ 34341], | 70.00th=[ 50070], 80.00th=[ 65274], 90.00th=[ 99091], 95.00th=[132645], | 99.00th=[221250], 99.50th=[325059], 99.90th=[446694], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 29, max= 443, per=25.18%, avg=182.03, stdev=86.15, samples=67 iops : min= 1, max= 27, avg=10.58, stdev= 5.44, samples=67 lat (usec) : 50=0.52%, 100=8.20%, 250=0.91%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.34%, 4=5.47%, 10=9.38%, 20=7.29%, 50=28.91% lat (msec) : 100=27.47%, 250=8.59%, 500=0.65% cpu : usr=0.08%, sys=4.83%, ctx=1553, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=687KiB/s (704kB/s), 167KiB/s-181KiB/s (171kB/s-185kB/s), io=23.4MiB (24.5MB), run=34384-34850msec WRITE: bw=723KiB/s (740kB/s), 175KiB/s-190KiB/s (179kB/s-195kB/s), io=24.6MiB (25.8MB), run=34384-34850msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144666: Sat Aug 22 18:27:10 2026 read: IOPS=5, BW=80.1KiB/s (81.0kB/s)(5920KiB/73943msec) clat (msec): min=7, max=410, avg=44.55, stdev=51.85 lat (msec): min=7, max=410, avg=44.55, stdev=51.85 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 55], 90.00th=[ 95], 95.00th=[ 157], | 99.00th=[ 255], 99.50th=[ 321], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 320, per=28.11%, avg=90.25, stdev=55.05, samples=129 iops : min= 1, max= 20, avg= 4.84, stdev= 3.50, samples=129 write: IOPS=5, BW=86.1KiB/s (88.2kB/s)(6368KiB/73943msec); 0 zone resets clat (msec): min=38, max=662, avg=144.21, stdev=73.77 lat (msec): min=38, max=662, avg=144.22, stdev=73.77 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 66], 10.00th=[ 72], 20.00th=[ 87], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 127], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 192], 90.00th=[ 241], 95.00th=[ 300], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 30, max= 192, per=26.08%, avg=88.13, stdev=41.02, samples=142 iops : min= 1, max= 12, avg= 4.70, stdev= 2.69, samples=142 lat (msec) : 10=1.30%, 20=13.80%, 50=22.79%, 100=21.09%, 250=36.20% lat (msec) : 500=4.69%, 750=0.13% cpu : usr=0.05%, sys=1.14%, ctx=1233, 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=144667: Sat Aug 22 18:27:10 2026 read: IOPS=4, BW=77.1KiB/s (78.9kB/s)(5744KiB/74519msec) clat (msec): min=8, max=399, avg=43.34, stdev=49.00 lat (msec): min=8, max=399, avg=43.34, stdev=49.00 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 103], 95.00th=[ 144], | 99.00th=[ 243], 99.50th=[ 321], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 22, max= 319, per=30.44%, avg=97.72, stdev=61.66, samples=116 iops : min= 1, max= 19, avg= 5.33, stdev= 3.91, samples=116 write: IOPS=5, BW=87.8KiB/s (89.9kB/s)(6544KiB/74519msec); 0 zone resets clat (msec): min=48, max=580, avg=143.70, stdev=74.30 lat (msec): min=48, max=580, avg=143.71, stdev=74.30 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 100], 40.00th=[ 112], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 184], 90.00th=[ 236], 95.00th=[ 296], | 99.00th=[ 401], 99.50th=[ 514], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 30, max= 192, per=26.51%, avg=89.60, stdev=41.39, samples=143 iops : min= 1, max= 12, avg= 4.80, stdev= 2.70, samples=143 lat (msec) : 10=1.04%, 20=15.76%, 50=18.62%, 100=22.92%, 250=36.72% lat (msec) : 500=4.56%, 750=0.39% cpu : usr=0.06%, sys=1.22%, ctx=1357, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144668: Sat Aug 22 18:27:10 2026 read: IOPS=5, BW=88.1KiB/s (90.2kB/s)(6256KiB/71010msec) clat (msec): min=7, max=386, avg=42.94, stdev=49.43 lat (msec): min=7, max=386, avg=42.95, stdev=49.43 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 84], 95.00th=[ 155], | 99.00th=[ 275], 99.50th=[ 321], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 285, per=30.79%, avg=98.85, stdev=67.15, samples=125 iops : min= 1, max= 17, avg= 5.39, stdev= 4.32, samples=125 write: IOPS=5, BW=84.9KiB/s (86.0kB/s)(6032KiB/71010msec); 0 zone resets clat (msec): min=38, max=409, avg=143.46, stdev=69.41 lat (msec): min=38, max=409, avg=143.47, stdev=69.41 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 73], 10.00th=[ 80], 20.00th=[ 90], | 30.00th=[ 100], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 159], 80.00th=[ 201], 90.00th=[ 243], 95.00th=[ 292], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 192, per=25.35%, avg=85.70, stdev=40.64, samples=138 iops : min= 1, max= 12, avg= 4.55, stdev= 2.64, samples=138 lat (msec) : 10=1.04%, 20=14.06%, 50=26.43%, 100=20.05%, 250=33.33% lat (msec) : 500=5.08% cpu : usr=0.05%, sys=1.26%, ctx=1317, 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=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=144669: Sat Aug 22 18:27:10 2026 read: IOPS=5, BW=82.9KiB/s (84.9kB/s)(6032KiB/72778msec) clat (msec): min=7, max=296, avg=42.27, stdev=44.30 lat (msec): min=7, max=297, avg=42.28, stdev=44.30 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 247], 99.50th=[ 262], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 349, per=29.46%, avg=94.58, stdev=65.71, samples=124 iops : min= 1, max= 21, avg= 5.11, stdev= 4.21, samples=124 write: IOPS=5, BW=85.0KiB/s (88.0kB/s)(6256KiB/72778msec); 0 zone resets clat (msec): min=46, max=543, avg=144.98, stdev=72.43 lat (msec): min=46, max=543, avg=144.98, stdev=72.43 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 69], 10.00th=[ 78], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 114], 50.00th=[ 124], 60.00th=[ 138], | 70.00th=[ 163], 80.00th=[ 186], 90.00th=[ 239], 95.00th=[ 296], | 99.00th=[ 414], 99.50th=[ 443], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 190, per=25.93%, avg=87.63, stdev=41.39, samples=140 iops : min= 1, max= 11, avg= 4.67, stdev= 2.69, samples=140 lat (msec) : 10=1.17%, 20=15.76%, 50=21.48%, 100=20.18%, 250=36.46% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.05%, sys=1.25%, ctx=1317, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=321KiB/s (329kB/s), 77.1KiB/s-88.1KiB/s (78.9kB/s-90.2kB/s), io=23.4MiB (24.5MB), run=71010-74519msec WRITE: bw=338KiB/s (346kB/s), 84.9KiB/s-87.8KiB/s (86.0kB/s-89.9kB/s), io=24.6MiB (25.8MB), run=71010-74519msec 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=144700: Sat Aug 22 18:27:25 2026 read: IOPS=1, BW=1422KiB/s (1456kB/s)(7168KiB/5041msec) clat (usec): min=686, max=3006.2k, avg=535638.80, stdev=1096386.89 lat (usec): min=688, max=3006.2k, avg=535640.76, stdev=1096386.52 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], | 20.00th=[ 2933], 30.00th=[ 2966], 40.00th=[ 2966], | 50.00th=[ 206570], 60.00th=[ 256902], 70.00th=[ 256902], | 80.00th=[ 270533], 90.00th=[3003122], 95.00th=[3003122], | 99.00th=[3003122], 99.50th=[3003122], 99.90th=[3003122], | 99.95th=[3003122], 99.99th=[3003122] bw ( KiB/s): min= 1950, max= 3984, per=74.09%, avg=2678.50, stdev=939.49, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=1016KiB/s (1040kB/s)(5120KiB/5041msec); 0 zone resets clat (msec): min=176, max=314, avg=246.95, stdev=62.88 lat (msec): min=176, max=316, avg=247.62, stdev=63.65 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 1992, max= 5851, per=77.48%, avg=3921.50, stdev=2728.73, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 4=16.67%, 250=25.00%, 500=41.67%, >=2000=8.33% cpu : usr=0.02%, sys=8.59%, ctx=271, 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=144701: Sat Aug 22 18:27:25 2026 read: IOPS=0, BW=385KiB/s (394kB/s)(2048KiB/5318msec) clat (msec): min=173, max=285, avg=229.40, stdev=79.45 lat (msec): min=173, max=285, avg=229.40, stdev=79.45 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1635, max= 2027, per=50.65%, avg=1831.00, stdev=277.19, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1926KiB/s (1972kB/s)(10.0MiB/5318msec); 0 zone resets clat (msec): min=111, max=1750, avg=455.00, stdev=477.86 lat (msec): min=111, max=1750, avg=455.14, stdev=477.86 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 120], | 30.00th=[ 165], 40.00th=[ 251], 50.00th=[ 342], 60.00th=[ 376], | 70.00th=[ 468], 80.00th=[ 477], 90.00th=[ 493], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 1965, max= 4055, per=51.03%, avg=2582.86, stdev=974.49, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=41.67%, 500=50.00%, 2000=8.33% cpu : usr=0.02%, sys=12.39%, ctx=163, 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=144702: Sat Aug 22 18:27:25 2026 read: IOPS=1, BW=1085KiB/s (1111kB/s)(6144KiB/5665msec) clat (usec): min=927, max=349647, avg=213820.79, stdev=115072.77 lat (usec): min=928, max=349649, avg=213822.71, stdev=115072.91 clat percentiles (usec): | 1.00th=[ 930], 5.00th=[ 930], 10.00th=[ 930], 20.00th=[212861], | 30.00th=[212861], 40.00th=[227541], 50.00th=[227541], 60.00th=[233833], | 70.00th=[256902], 80.00th=[256902], 90.00th=[350225], 95.00th=[350225], | 99.00th=[350225], 99.50th=[350225], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 1980, max= 4055, per=70.00%, avg=2530.50, stdev=1016.78, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1085KiB/s (1111kB/s)(6144KiB/5665msec); 0 zone resets clat (msec): min=183, max=1757, avg=715.77, stdev=606.02 lat (msec): min=184, max=1759, avg=716.67, stdev=606.59 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 506], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 1556, max= 2039, per=37.53%, avg=1899.60, stdev=194.86, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 1000=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 2000=16.67% cpu : usr=0.00%, sys=9.85%, ctx=160, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144703: Sat Aug 22 18:27:25 2026 read: IOPS=1, BW=1110KiB/s (1136kB/s)(5120KiB/4614msec) clat (msec): min=4, max=268, avg=157.79, stdev=96.69 lat (msec): min=4, max=268, avg=157.80, stdev=96.69 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 165], | 70.00th=[ 199], 80.00th=[ 199], 90.00th=[ 268], 95.00th=[ 268], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 1965, max= 5941, per=100.00%, avg=3953.00, stdev=2811.46, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1554KiB/s (1591kB/s)(7168KiB/4614msec); 0 zone resets clat (msec): min=164, max=1653, avg=541.15, stdev=538.42 lat (msec): min=164, max=1653, avg=541.26, stdev=538.39 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 222], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 292], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 827], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 1484, max= 3984, per=56.17%, avg=2842.75, stdev=1302.21, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 10=8.33%, 250=50.00%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.49%, ctx=122, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3615KiB/s (3702kB/s), 385KiB/s-1422KiB/s (394kB/s-1456kB/s), io=20.0MiB (20.0MB), run=4614-5665msec WRITE: bw=5061KiB/s (5183kB/s), 1016KiB/s-1926KiB/s (1040kB/s-1972kB/s), io=28.0MiB (29.4MB), run=4614-5665msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144704: Sat Aug 22 18:27:26 2026 read: IOPS=1, BW=1049KiB/s (1075kB/s)(7168KiB/6830msec) clat (msec): min=89, max=2197, avg=617.67, stdev=743.61 lat (msec): min=89, max=2197, avg=617.67, stdev=743.61 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 178], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 266], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 818], 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= 1828, max= 4096, per=79.54%, avg=2384.60, stdev=959.85, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 write: IOPS=0, BW=750KiB/s (768kB/s)(5120KiB/6830msec); 0 zone resets clat (msec): min=203, max=799, avg=453.06, stdev=251.37 lat (msec): min=203, max=799, avg=453.19, stdev=251.40 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1950, max= 4096, per=64.12%, avg=2691.00, stdev=1217.37, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=2.94%, ctx=80, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144705: Sat Aug 22 18:27:26 2026 read: IOPS=0, BW=355KiB/s (363kB/s)(2048KiB/5771msec) clat (msec): min=142, max=611, avg=377.18, stdev=331.75 lat (msec): min=142, max=611, avg=377.18, stdev=331.75 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1665, max= 2031, per=61.64%, avg=1848.00, stdev=258.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1774KiB/s (1817kB/s)(10.0MiB/5771msec); 0 zone resets clat (msec): min=143, max=1767, avg=486.15, stdev=482.48 lat (msec): min=143, max=1772, avg=486.87, stdev=483.69 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 155], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 271], 60.00th=[ 372], | 70.00th=[ 542], 80.00th=[ 584], 90.00th=[ 592], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1965, max= 4015, per=61.33%, avg=2573.86, stdev=974.14, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=41.67%, 500=16.67%, 750=33.33%, 2000=8.33% cpu : usr=0.00%, sys=3.71%, 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=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=144706: Sat Aug 22 18:27:26 2026 read: IOPS=1, BW=1161KiB/s (1189kB/s)(6144KiB/5290msec) clat (msec): min=99, max=627, avg=250.75, stdev=193.32 lat (msec): min=99, max=627, avg=250.75, stdev=193.32 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 192], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2023, max= 3992, per=84.17%, avg=2523.50, stdev=979.06, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1161KiB/s (1189kB/s)(6144KiB/5290msec); 0 zone resets clat (msec): min=270, max=1341, avg=623.56, stdev=484.05 lat (msec): min=271, max=1342, avg=623.70, stdev=484.01 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 376], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1950, max= 3061, per=52.79%, avg=2215.60, stdev=473.99, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33%, 2000=16.67% cpu : usr=0.02%, sys=3.57%, ctx=106, 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=144707: Sat Aug 22 18:27:26 2026 read: IOPS=0, BW=853KiB/s (874kB/s)(5120KiB/6002msec) clat (msec): min=85, max=446, avg=255.19, stdev=151.33 lat (msec): min=85, max=446, avg=255.19, stdev=151.33 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 2023, max= 4015, per=89.72%, avg=2689.67, stdev=1147.78, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1194KiB/s (1223kB/s)(7168KiB/6002msec); 0 zone resets clat (msec): min=186, max=1769, avg=630.29, stdev=567.52 lat (msec): min=187, max=1769, avg=630.81, stdev=567.29 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 300], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 380], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 1011], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1590, max= 4031, per=55.30%, avg=2321.00, stdev=972.06, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=16.67%, 500=58.33%, 2000=16.67% cpu : usr=0.00%, sys=4.18%, ctx=115, 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=2999KiB/s (3071kB/s), 355KiB/s-1161KiB/s (363kB/s-1189kB/s), io=20.0MiB (20.0MB), run=5290-6830msec WRITE: bw=4198KiB/s (4299kB/s), 750KiB/s-1774KiB/s (768kB/s-1817kB/s), io=28.0MiB (29.4MB), run=5290-6830msec 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=144719: Sat Aug 22 18:27:39 2026 read: IOPS=0, BW=3473KiB/s (3557kB/s)(12.0MiB/3538msec) clat (msec): min=234, max=1688, avg=1132.96, stdev=785.53 lat (msec): min=234, max=1688, avg=1132.96, stdev=785.53 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.03%, ctx=57, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144720: Sat Aug 22 18:27:39 2026 read: IOPS=0, BW=1120KiB/s (1147kB/s)(4096KiB/3656msec) clat (nsec): min=1229.0M, max=1229.0M, avg=1229018174.00, stdev= 0.00 lat (nsec): min=1229.0M, max=1229.0M, avg=1229021343.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1234], 5.00th=[ 1234], 10.00th=[ 1234], 20.00th=[ 1234], | 30.00th=[ 1234], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 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 write: IOPS=0, BW=2241KiB/s (2294kB/s)(8192KiB/3656msec); 0 zone resets clat (msec): min=480, max=1785, avg=1132.84, stdev=922.45 lat (msec): min=481, max=1785, avg=1133.57, stdev=922.13 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 1787], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8192, max= 8192, per=91.41%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.58%, ctx=58, 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=144721: Sat Aug 22 18:27:39 2026 write: IOPS=0, BW=3892KiB/s (3986kB/s)(12.0MiB/3157msec); 0 zone resets clat (msec): min=883, max=1128, avg=1035.97, stdev=133.34 lat (msec): min=883, max=1130, avg=1036.91, stdev=134.04 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8110, max= 8192, per=90.95%, avg=8151.00, stdev=57.98, 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=0.06%, sys=8.46%, ctx=78, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144722: Sat Aug 22 18:27:39 2026 write: IOPS=0, BW=3942KiB/s (4037kB/s)(12.0MiB/3117msec); 0 zone resets clat (msec): min=479, max=1500, avg=990.85, stdev=510.29 lat (msec): min=480, max=1505, avg=992.65, stdev=512.27 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7585, max= 8110, per=87.56%, avg=7847.50, stdev=371.23, 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=4.43%, ctx=67, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4481KiB/s (4589kB/s), 1120KiB/s-3473KiB/s (1147kB/s-3557kB/s), io=16.0MiB (16.8MB), run=3538-3656msec WRITE: bw=8963KiB/s (9178kB/s), 2241KiB/s-3942KiB/s (2294kB/s-4037kB/s), io=32.0MiB (33.6MB), run=3117-3656msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144714: Sat Aug 22 18:27:39 2026 read: IOPS=0, BW=4080KiB/s (4178kB/s)(12.0MiB/3012msec) clat (msec): min=943, max=1023, avg=971.29, stdev=45.54 lat (msec): min=943, max=1023, avg=971.29, stdev=45.53 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7907, max= 8126, per=100.00%, avg=8016.50, stdev=154.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.48%, ctx=248, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144715: Sat Aug 22 18:27:39 2026 read: IOPS=0, BW=1230KiB/s (1260kB/s)(4096KiB/3330msec) clat (nsec): min=946926k, max=946926k, avg=946926458.00, stdev= 0.00 lat (nsec): min=946930k, max=946930k, avg=946929929.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 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= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2460KiB/s (2519kB/s)(8192KiB/3330msec); 0 zone resets clat (msec): min=741, max=1524, avg=1132.99, stdev=554.04 lat (msec): min=746, max=1525, avg=1135.87, stdev=550.77 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 1519], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.06%, sys=4.72%, 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=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=144716: Sat Aug 22 18:27:39 2026 write: IOPS=0, BW=2720KiB/s (2785kB/s)(12.0MiB/4518msec); 0 zone resets clat (msec): min=341, max=2401, avg=1461.03, stdev=1041.50 lat (msec): min=343, max=2401, avg=1461.88, stdev=1040.96 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 1636], 50.00th=[ 1636], 60.00th=[ 1636], | 70.00th=[ 2400], 80.00th=[ 2400], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7984, max= 8000, per=100.00%, avg=7992.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.19%, ctx=58, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144717: Sat Aug 22 18:27:39 2026 write: IOPS=1, BW=4156KiB/s (4255kB/s)(12.0MiB/2957msec); 0 zone resets clat (msec): min=437, max=1685, avg=968.07, stdev=644.81 lat (msec): min=438, max=1688, avg=969.27, stdev=645.77 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7907, max= 8015, per=100.00%, avg=7961.00, stdev=76.37, 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=3.55%, 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 Run status group 0 (all jobs): READ: bw=4920KiB/s (5038kB/s), 1230KiB/s-4080KiB/s (1260kB/s-4178kB/s), io=16.0MiB (16.8MB), run=3012-3330msec WRITE: bw=7253KiB/s (7427kB/s), 2460KiB/s-4156KiB/s (2519kB/s-4255kB/s), io=32.0MiB (33.6MB), run=2957-4518msec