== sanity test 398b: DIO and buffer IO race ============== 22:46:19 (1763351179) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.89816 s, 8.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=184608: Sun Nov 16 22:48:17 2025 read: IOPS=15, BW=60.8KiB/s (62.3kB/s)(5992KiB/98477msec) clat (usec): min=116, max=1012.9k, avg=36137.78, stdev=33472.70 lat (usec): min=116, max=1012.9k, avg=36145.97, stdev=33477.70 clat percentiles (usec): | 1.00th=[ 155], 5.00th=[ 8979], 10.00th=[ 14091], | 20.00th=[ 18744], 30.00th=[ 22938], 40.00th=[ 26870], | 50.00th=[ 31589], 60.00th=[ 36963], 70.00th=[ 43254], | 80.00th=[ 50070], 90.00th=[ 60031], 95.00th=[ 72877], | 99.00th=[ 114820], 99.50th=[ 130548], 99.90th=[ 223347], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 15, max= 135, per=25.53%, avg=61.03, stdev=20.19, samples=192 iops : min= 3, max= 33, avg=14.66, stdev= 5.09, samples=192 write: IOPS=15, BW=63.9KiB/s (65.5kB/s)(6296KiB/98477msec); 0 zone resets clat (usec): min=894, max=202869, avg=27845.55, stdev=27784.64 lat (usec): min=894, max=202871, avg=27847.82, stdev=27784.03 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1123], 10.00th=[ 1254], 20.00th=[ 2442], | 30.00th=[ 6259], 40.00th=[ 13829], 50.00th=[ 21103], 60.00th=[ 27395], | 70.00th=[ 36439], 80.00th=[ 49546], 90.00th=[ 65799], 95.00th=[ 79168], | 99.00th=[117965], 99.50th=[141558], 99.90th=[189793], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 7, max= 150, per=25.66%, avg=64.16, stdev=24.29, samples=192 iops : min= 1, max= 37, avg=15.43, stdev= 6.11, samples=192 lat (usec) : 250=1.66%, 500=0.42%, 1000=0.36% lat (msec) : 2=9.15%, 4=3.06%, 10=5.96%, 20=14.75%, 50=44.73% lat (msec) : 100=18.13%, 250=1.76%, 2000=0.03% cpu : usr=0.10%, sys=6.98%, ctx=6541, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184609: Sun Nov 16 22:48:17 2025 read: IOPS=15, BW=60.4KiB/s (61.9kB/s)(5940KiB/98341msec) clat (usec): min=110, max=1003.1k, avg=36690.45, stdev=32713.83 lat (usec): min=111, max=1003.1k, avg=36691.61, stdev=32713.89 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 9372], 10.00th=[ 14484], | 20.00th=[ 19006], 30.00th=[ 23725], 40.00th=[ 28181], | 50.00th=[ 32637], 60.00th=[ 38011], 70.00th=[ 43779], | 80.00th=[ 50594], 90.00th=[ 61080], 95.00th=[ 74974], | 99.00th=[ 104334], 99.50th=[ 121111], 99.90th=[ 166724], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 126, per=25.34%, avg=60.56, stdev=21.31, samples=192 iops : min= 1, max= 31, avg=14.54, stdev= 5.40, samples=192 write: IOPS=16, BW=64.6KiB/s (66.1kB/s)(6348KiB/98341msec); 0 zone resets clat (usec): min=832, max=221052, avg=27307.70, stdev=27556.69 lat (usec): min=833, max=221053, avg=27319.22, stdev=27557.90 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1123], 10.00th=[ 1237], 20.00th=[ 2278], | 30.00th=[ 6849], 40.00th=[ 14484], 50.00th=[ 20841], 60.00th=[ 27132], | 70.00th=[ 35390], 80.00th=[ 45351], 90.00th=[ 63701], 95.00th=[ 81265], | 99.00th=[123208], 99.50th=[135267], 99.90th=[200279], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 15, max= 160, per=25.93%, avg=64.82, stdev=24.04, samples=192 iops : min= 3, max= 40, avg=15.59, stdev= 6.04, samples=192 lat (usec) : 250=1.56%, 500=0.20%, 750=0.03%, 1000=0.55% lat (msec) : 2=9.15%, 4=3.29%, 10=5.60%, 20=15.66%, 50=44.82% lat (msec) : 100=17.51%, 250=1.60%, 2000=0.03% cpu : usr=0.11%, sys=7.53%, ctx=6578, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184610: Sun Nov 16 22:48:17 2025 read: IOPS=15, BW=60.1KiB/s (61.5kB/s)(6028KiB/100341msec) clat (usec): min=120, max=276767, avg=36905.59, stdev=24983.48 lat (usec): min=120, max=276767, avg=36906.80, stdev=24983.48 clat percentiles (usec): | 1.00th=[ 153], 5.00th=[ 7046], 10.00th=[ 13566], 20.00th=[ 18744], | 30.00th=[ 22676], 40.00th=[ 27395], 50.00th=[ 32113], 60.00th=[ 38011], | 70.00th=[ 43779], 80.00th=[ 51643], 90.00th=[ 64750], 95.00th=[ 78119], | 99.00th=[129500], 99.50th=[154141], 99.90th=[233833], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 15, max= 135, per=25.36%, avg=60.61, stdev=19.05, samples=195 iops : min= 3, max= 33, avg=14.54, stdev= 4.80, samples=195 write: IOPS=15, BW=62.4KiB/s (63.9kB/s)(6260KiB/100341msec); 0 zone resets clat (usec): min=912, max=1102.4k, avg=28315.21, stdev=39115.46 lat (usec): min=913, max=1102.4k, avg=28318.53, stdev=39115.21 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1123], 10.00th=[ 1237], | 20.00th=[ 2343], 30.00th=[ 5800], 40.00th=[ 13304], | 50.00th=[ 21103], 60.00th=[ 27919], 70.00th=[ 36439], | 80.00th=[ 47973], 90.00th=[ 65799], 95.00th=[ 80217], | 99.00th=[ 126354], 99.50th=[ 143655], 99.90th=[ 225444], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 7, max= 159, per=25.01%, avg=62.52, stdev=27.66, samples=196 iops : min= 1, max= 39, avg=15.03, stdev= 6.98, samples=196 lat (usec) : 250=1.73%, 500=0.33%, 750=0.07%, 1000=0.36% lat (msec) : 2=9.08%, 4=4.07%, 10=5.57%, 20=14.71%, 50=43.98% lat (msec) : 100=18.00%, 250=2.05%, 500=0.03%, 2000=0.03% cpu : usr=0.10%, sys=7.05%, ctx=6407, 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=184611: Sun Nov 16 22:48:17 2025 read: IOPS=15, BW=60.2KiB/s (61.7kB/s)(6052KiB/100463msec) clat (usec): min=105, max=323873, avg=36476.63, stdev=24084.92 lat (usec): min=106, max=323874, avg=36479.64, stdev=24084.34 clat percentiles (usec): | 1.00th=[ 147], 5.00th=[ 10290], 10.00th=[ 14353], 20.00th=[ 19006], | 30.00th=[ 22414], 40.00th=[ 27132], 50.00th=[ 31589], 60.00th=[ 37487], | 70.00th=[ 43779], 80.00th=[ 50594], 90.00th=[ 62653], 95.00th=[ 77071], | 99.00th=[119014], 99.50th=[143655], 99.90th=[198181], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 15, max= 134, per=25.36%, avg=60.60, stdev=19.68, samples=195 iops : min= 3, max= 33, avg=14.54, stdev= 4.96, samples=195 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(6236KiB/100463msec); 0 zone resets clat (usec): min=870, max=1095.3k, avg=28777.19, stdev=38236.59 lat (usec): min=871, max=1095.3k, avg=28778.89, stdev=38236.71 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1352], | 20.00th=[ 2737], 30.00th=[ 6718], 40.00th=[ 15270], | 50.00th=[ 21890], 60.00th=[ 28705], 70.00th=[ 37487], | 80.00th=[ 49021], 90.00th=[ 65799], 95.00th=[ 82314], | 99.00th=[ 109577], 99.50th=[ 129500], 99.90th=[ 189793], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 7, max= 125, per=24.78%, avg=61.95, stdev=22.47, samples=196 iops : min= 1, max= 31, avg=14.89, stdev= 5.66, samples=196 lat (usec) : 250=1.56%, 500=0.29%, 750=0.07%, 1000=0.26% lat (msec) : 2=8.04%, 4=3.78%, 10=5.66%, 20=15.30%, 50=45.12% lat (msec) : 100=17.71%, 250=2.15%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=7.25%, ctx=6565, 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=239KiB/s (245kB/s), 60.1KiB/s-60.8KiB/s (61.5kB/s-62.3kB/s), io=23.4MiB (24.6MB), run=98341-100463msec WRITE: bw=250KiB/s (256kB/s), 62.1KiB/s-64.6KiB/s (63.6kB/s-66.1kB/s), io=24.6MiB (25.7MB), run=98341-100463msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184603: Sun Nov 16 22:48:49 2025 read: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5992KiB/132260msec) clat (msec): min=5, max=1037, avg=33.53, stdev=38.95 lat (msec): min=5, max=1037, avg=33.53, stdev=38.95 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 77], 95.00th=[ 97], | 99.00th=[ 140], 99.50th=[ 155], 99.90th=[ 247], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 142, per=25.33%, avg=45.85, stdev=29.08, samples=254 iops : min= 1, max= 35, avg=10.81, stdev= 7.33, samples=254 write: IOPS=11, BW=47.6KiB/s (48.7kB/s)(6296KiB/132260msec); 0 zone resets clat (msec): min=10, max=240, avg=51.81, stdev=32.71 lat (msec): min=10, max=240, avg=51.81, stdev=32.71 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 62], 80.00th=[ 75], 90.00th=[ 95], 95.00th=[ 113], | 99.00th=[ 167], 99.50th=[ 188], 99.90th=[ 213], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 7, max= 152, per=25.01%, avg=47.52, stdev=27.93, samples=258 iops : min= 1, max= 38, avg=11.22, stdev= 7.02, samples=258 lat (msec) : 10=4.36%, 20=21.74%, 50=44.17%, 100=23.24%, 250=6.45% lat (msec) : 2000=0.03% cpu : usr=0.09%, sys=2.49%, ctx=4839, 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=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=184604: Sun Nov 16 22:48:49 2025 read: IOPS=11, BW=45.0KiB/s (46.1kB/s)(5940KiB/131977msec) clat (msec): min=5, max=1044, avg=33.07, stdev=39.42 lat (msec): min=5, max=1044, avg=33.07, stdev=39.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 96], | 99.00th=[ 146], 99.50th=[ 167], 99.90th=[ 234], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 152, per=25.18%, avg=45.58, stdev=31.03, samples=255 iops : min= 1, max= 38, avg=10.74, stdev= 7.80, samples=255 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6348KiB/131977msec); 0 zone resets clat (msec): min=8, max=422, avg=51.90, stdev=35.28 lat (msec): min=8, max=422, avg=51.90, stdev=35.28 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 50], | 70.00th=[ 60], 80.00th=[ 74], 90.00th=[ 103], 95.00th=[ 121], | 99.00th=[ 165], 99.50th=[ 180], 99.90th=[ 259], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 127, per=25.25%, avg=47.98, stdev=28.63, samples=259 iops : min= 1, max= 31, avg=11.34, stdev= 7.21, samples=259 lat (msec) : 10=4.20%, 20=22.23%, 50=44.73%, 100=21.29%, 250=7.42% lat (msec) : 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=2.43%, ctx=4846, 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=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=184605: Sun Nov 16 22:48:49 2025 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(6028KiB/131715msec) clat (msec): min=4, max=300, avg=32.58, stdev=29.95 lat (msec): min=4, max=300, avg=32.58, stdev=29.95 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 47], 90.00th=[ 72], 95.00th=[ 97], | 99.00th=[ 140], 99.50th=[ 180], 99.90th=[ 243], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 182, per=25.56%, avg=46.26, stdev=29.35, samples=254 iops : min= 1, max= 45, avg=10.91, stdev= 7.38, samples=254 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(6260KiB/131715msec); 0 zone resets clat (msec): min=9, max=1083, avg=52.46, stdev=42.44 lat (msec): min=9, max=1083, avg=52.46, stdev=42.44 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 50], | 70.00th=[ 62], 80.00th=[ 75], 90.00th=[ 99], 95.00th=[ 117], | 99.00th=[ 163], 99.50th=[ 190], 99.90th=[ 309], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 136, per=24.91%, avg=47.33, stdev=28.10, samples=258 iops : min= 1, max= 34, avg=11.18, stdev= 7.09, samples=258 lat (msec) : 10=4.46%, 20=21.32%, 50=45.57%, 100=21.71%, 250=6.80% lat (msec) : 500=0.10%, 2000=0.03% cpu : usr=0.06%, sys=2.49%, ctx=4881, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184606: Sun Nov 16 22:48:49 2025 read: IOPS=11, BW=46.0KiB/s (47.1kB/s)(6052KiB/131555msec) clat (msec): min=5, max=298, avg=32.98, stdev=30.13 lat (msec): min=5, max=298, avg=32.99, stdev=30.13 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 49], 90.00th=[ 73], 95.00th=[ 95], | 99.00th=[ 140], 99.50th=[ 163], 99.90th=[ 239], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 175, per=25.85%, avg=46.78, stdev=30.78, samples=253 iops : min= 1, max= 43, avg=11.04, stdev= 7.75, samples=253 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(6236KiB/131555msec); 0 zone resets clat (msec): min=8, max=1072, avg=52.03, stdev=44.00 lat (msec): min=8, max=1072, avg=52.03, stdev=44.00 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 34], 50.00th=[ 39], 60.00th=[ 47], | 70.00th=[ 60], 80.00th=[ 75], 90.00th=[ 99], 95.00th=[ 121], | 99.00th=[ 176], 99.50th=[ 220], 99.90th=[ 409], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 124, per=24.86%, avg=47.23, stdev=27.54, samples=258 iops : min= 1, max= 31, avg=11.16, stdev= 6.93, samples=258 lat (msec) : 10=4.17%, 20=22.56%, 50=44.89%, 100=21.52%, 250=6.71% lat (msec) : 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=2.50%, ctx=4882, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=182KiB/s (186kB/s), 45.0KiB/s-46.0KiB/s (46.1kB/s-47.1kB/s), io=23.4MiB (24.6MB), run=131555-132260msec WRITE: bw=190KiB/s (195kB/s), 47.4KiB/s-48.1KiB/s (48.5kB/s-49.3kB/s), io=24.6MiB (25.7MB), run=131555-132260msec 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=184665: Sun Nov 16 22:49:21 2025 read: IOPS=16, BW=266KiB/s (273kB/s)(5920KiB/22218msec) clat (usec): min=105, max=114670, avg=32626.82, stdev=20421.46 lat (usec): min=105, max=114671, avg=32627.85, stdev=20421.51 clat percentiles (usec): | 1.00th=[ 123], 5.00th=[ 149], 10.00th=[ 265], 20.00th=[ 17171], | 30.00th=[ 22152], 40.00th=[ 26084], 50.00th=[ 31327], 60.00th=[ 35914], | 70.00th=[ 41681], 80.00th=[ 48497], 90.00th=[ 56886], 95.00th=[ 67634], | 99.00th=[103285], 99.50th=[111674], 99.90th=[114820], 99.95th=[114820], | 99.99th=[114820] bw ( KiB/s): min= 125, max= 466, per=25.73%, avg=266.33, stdev=80.76, samples=43 iops : min= 7, max= 29, avg=15.95, stdev= 5.17, samples=43 write: IOPS=17, BW=287KiB/s (293kB/s)(6368KiB/22218msec); 0 zone resets clat (usec): min=1209, max=139297, avg=25451.63, stdev=24031.43 lat (usec): min=1211, max=139299, avg=25453.42, stdev=24031.42 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1647], 10.00th=[ 1778], 20.00th=[ 3589], | 30.00th=[ 6456], 40.00th=[ 13304], 50.00th=[ 20055], 60.00th=[ 26346], | 70.00th=[ 33162], 80.00th=[ 45351], 90.00th=[ 57410], 95.00th=[ 71828], | 99.00th=[101188], 99.50th=[125305], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 95, max= 435, per=26.46%, avg=287.88, stdev=83.90, samples=43 iops : min= 5, max= 27, avg=17.30, stdev= 5.30, samples=43 lat (usec) : 250=4.69%, 500=0.65% lat (msec) : 2=6.90%, 4=4.82%, 10=7.42%, 20=13.28%, 50=45.96% lat (msec) : 100=15.23%, 250=1.04% cpu : usr=0.07%, sys=9.19%, ctx=1643, 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=184666: Sun Nov 16 22:49:21 2025 read: IOPS=15, BW=248KiB/s (254kB/s)(5744KiB/23142msec) clat (usec): min=111, max=167902, avg=34394.05, stdev=23006.62 lat (usec): min=111, max=167903, avg=34395.04, stdev=23006.60 clat percentiles (usec): | 1.00th=[ 130], 5.00th=[ 169], 10.00th=[ 367], 20.00th=[ 18744], | 30.00th=[ 23462], 40.00th=[ 27132], 50.00th=[ 30540], 60.00th=[ 35914], | 70.00th=[ 41681], 80.00th=[ 50594], 90.00th=[ 62653], 95.00th=[ 74974], | 99.00th=[112722], 99.50th=[154141], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 92, max= 512, per=24.03%, avg=248.69, stdev=87.01, samples=45 iops : min= 5, max= 32, avg=14.82, stdev= 5.54, samples=45 write: IOPS=17, BW=283KiB/s (290kB/s)(6544KiB/23142msec); 0 zone resets clat (usec): min=1121, max=120343, avg=26236.19, stdev=24159.36 lat (usec): min=1122, max=120345, avg=26237.94, stdev=24159.36 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1663], 10.00th=[ 1844], 20.00th=[ 4424], | 30.00th=[ 8225], 40.00th=[ 13698], 50.00th=[ 20055], 60.00th=[ 24773], | 70.00th=[ 33817], 80.00th=[ 47449], 90.00th=[ 63701], 95.00th=[ 73925], | 99.00th=[ 96994], 99.50th=[102237], 99.90th=[120062], 99.95th=[120062], | 99.99th=[120062] bw ( KiB/s): min= 62, max= 541, per=26.09%, avg=283.89, stdev=97.73, samples=45 iops : min= 3, max= 33, avg=17.07, stdev= 6.19, samples=45 lat (usec) : 250=4.17%, 500=0.52%, 750=0.26% lat (msec) : 2=6.12%, 4=3.78%, 10=7.55%, 20=13.93%, 50=44.66% lat (msec) : 100=18.10%, 250=0.91% cpu : usr=0.07%, sys=8.74%, ctx=1683, 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=184667: Sun Nov 16 22:49:21 2025 read: IOPS=16, BW=272KiB/s (278kB/s)(6256KiB/23010msec) clat (usec): min=99, max=148075, avg=32762.17, stdev=22993.41 lat (usec): min=99, max=148076, avg=32774.99, stdev=22989.68 clat percentiles (usec): | 1.00th=[ 129], 5.00th=[ 155], 10.00th=[ 310], 20.00th=[ 16319], | 30.00th=[ 20317], 40.00th=[ 25560], 50.00th=[ 30278], 60.00th=[ 34866], | 70.00th=[ 40633], 80.00th=[ 47973], 90.00th=[ 58983], 95.00th=[ 71828], | 99.00th=[105382], 99.50th=[137364], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 95, max= 537, per=26.40%, avg=273.27, stdev=94.56, samples=45 iops : min= 5, max= 33, avg=16.42, stdev= 5.94, samples=45 write: IOPS=16, BW=262KiB/s (268kB/s)(6032KiB/23010msec); 0 zone resets clat (usec): min=1275, max=173312, avg=26980.14, stdev=26206.73 lat (usec): min=1276, max=173313, avg=26981.94, stdev=26206.72 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1631], 10.00th=[ 1795], 20.00th=[ 4424], | 30.00th=[ 7635], 40.00th=[ 12125], 50.00th=[ 20055], 60.00th=[ 26870], | 70.00th=[ 34866], 80.00th=[ 46924], 90.00th=[ 62129], 95.00th=[ 73925], | 99.00th=[114820], 99.50th=[147850], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 93, max= 416, per=24.14%, avg=262.69, stdev=87.33, samples=45 iops : min= 5, max= 26, avg=15.71, stdev= 5.57, samples=45 lat (usec) : 100=0.13%, 250=4.30%, 500=1.17%, 750=0.13%, 1000=0.13% lat (msec) : 2=6.25%, 4=3.52%, 10=8.46%, 20=14.97%, 50=43.10% lat (msec) : 100=15.63%, 250=2.21% cpu : usr=0.10%, sys=8.61%, ctx=1677, 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=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=184668: Sun Nov 16 22:49:21 2025 read: IOPS=17, BW=282KiB/s (289kB/s)(6032KiB/21372msec) clat (usec): min=120, max=140643, avg=30481.13, stdev=21317.04 lat (usec): min=120, max=140644, avg=30482.10, stdev=21317.03 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 161], 10.00th=[ 273], 20.00th=[ 15008], | 30.00th=[ 19268], 40.00th=[ 23200], 50.00th=[ 28705], 60.00th=[ 32113], | 70.00th=[ 39060], 80.00th=[ 47449], 90.00th=[ 56886], 95.00th=[ 65274], | 99.00th=[ 93848], 99.50th=[122160], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 121, max= 508, per=27.37%, avg=283.24, stdev=85.68, samples=41 iops : min= 7, max= 31, avg=17.02, stdev= 5.41, samples=41 write: IOPS=18, BW=293KiB/s (300kB/s)(6256KiB/21372msec); 0 zone resets clat (usec): min=1365, max=159557, avg=25127.89, stdev=23542.42 lat (usec): min=1367, max=159558, avg=25129.71, stdev=23542.53 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1631], 10.00th=[ 1762], 20.00th=[ 4490], | 30.00th=[ 8160], 40.00th=[ 12780], 50.00th=[ 19268], 60.00th=[ 25560], | 70.00th=[ 31851], 80.00th=[ 43254], 90.00th=[ 56361], 95.00th=[ 68682], | 99.00th=[111674], 99.50th=[122160], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 127, max= 572, per=27.10%, avg=294.88, stdev=91.98, samples=41 iops : min= 7, max= 35, avg=17.76, stdev= 5.77, samples=41 lat (usec) : 250=4.56%, 500=1.43%, 750=0.26% lat (msec) : 2=6.51%, 4=2.99%, 10=9.38%, 20=17.32%, 50=41.80% lat (msec) : 100=14.97%, 250=0.78% cpu : usr=0.11%, sys=9.33%, ctx=1635, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1035KiB/s (1060kB/s), 248KiB/s-282KiB/s (254kB/s-289kB/s), io=23.4MiB (24.5MB), run=21372-23142msec WRITE: bw=1089KiB/s (1115kB/s), 262KiB/s-293KiB/s (268kB/s-300kB/s), io=24.6MiB (25.8MB), run=21372-23142msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184660: Sun Nov 16 22:49:31 2025 read: IOPS=11, BW=176KiB/s (180kB/s)(5920KiB/33629msec) clat (msec): min=6, max=223, avg=34.94, stdev=31.61 lat (msec): min=6, max=223, avg=34.94, stdev=31.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 77], 95.00th=[ 103], | 99.00th=[ 178], 99.50th=[ 224], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 509, per=24.61%, avg=175.21, stdev=106.73, samples=66 iops : min= 1, max= 31, avg=10.17, stdev= 6.72, samples=66 write: IOPS=11, BW=189KiB/s (194kB/s)(6368KiB/33629msec); 0 zone resets clat (msec): min=9, max=252, avg=51.88, stdev=30.44 lat (msec): min=9, max=252, avg=51.88, stdev=30.44 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 62], 80.00th=[ 72], 90.00th=[ 89], 95.00th=[ 113], | 99.00th=[ 159], 99.50th=[ 178], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 30, max= 509, per=25.21%, avg=188.85, stdev=102.82, samples=66 iops : min= 1, max= 31, avg=11.02, stdev= 6.45, samples=66 lat (msec) : 10=3.65%, 20=17.97%, 50=47.66%, 100=24.35%, 250=6.25% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=2.68%, ctx=1276, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184661: Sun Nov 16 22:49:31 2025 read: IOPS=10, BW=171KiB/s (175kB/s)(5744KiB/33538msec) clat (msec): min=5, max=233, avg=33.54, stdev=30.84 lat (msec): min=5, max=233, avg=33.54, stdev=30.84 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 68], 95.00th=[ 100], | 99.00th=[ 163], 99.50th=[ 201], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 447, per=24.49%, avg=174.35, stdev=103.09, samples=65 iops : min= 1, max= 27, avg=10.11, stdev= 6.44, samples=65 write: IOPS=12, BW=195KiB/s (200kB/s)(6544KiB/33538msec); 0 zone resets clat (msec): min=7, max=262, avg=52.29, stdev=31.22 lat (msec): min=7, max=262, avg=52.29, stdev=31.22 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 61], 80.00th=[ 74], 90.00th=[ 95], 95.00th=[ 110], | 99.00th=[ 159], 99.50th=[ 163], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 31, max= 472, per=25.96%, avg=194.41, stdev=96.61, samples=66 iops : min= 1, max= 29, avg=11.38, stdev= 6.08, samples=66 lat (msec) : 10=2.73%, 20=20.83%, 50=46.88%, 100=23.31%, 250=6.12% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=2.57%, ctx=1226, 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=184662: Sun Nov 16 22:49:31 2025 read: IOPS=11, BW=190KiB/s (195kB/s)(6256KiB/32894msec) clat (msec): min=5, max=168, avg=32.05, stdev=23.69 lat (msec): min=5, max=168, avg=32.05, stdev=23.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 64], 95.00th=[ 83], | 99.00th=[ 115], 99.50th=[ 146], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 31, max= 510, per=26.66%, avg=189.83, stdev=113.15, samples=64 iops : min= 1, max= 31, avg=11.09, stdev= 7.06, samples=64 write: IOPS=11, BW=183KiB/s (188kB/s)(6032KiB/32894msec); 0 zone resets clat (msec): min=11, max=226, avg=53.69, stdev=32.36 lat (msec): min=11, max=226, avg=53.70, stdev=32.36 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 21], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 54], | 70.00th=[ 63], 80.00th=[ 73], 90.00th=[ 96], 95.00th=[ 114], | 99.00th=[ 171], 99.50th=[ 218], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 61, max= 414, per=23.99%, avg=179.72, stdev=85.69, samples=64 iops : min= 3, max= 25, avg=10.47, stdev= 5.39, samples=64 lat (msec) : 10=2.99%, 20=20.18%, 50=46.61%, 100=25.00%, 250=5.21% cpu : usr=0.08%, sys=2.71%, ctx=1250, 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=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=184663: Sun Nov 16 22:49:31 2025 read: IOPS=11, BW=182KiB/s (187kB/s)(6032KiB/33058msec) clat (msec): min=5, max=166, avg=33.88, stdev=28.29 lat (msec): min=5, max=166, avg=33.88, stdev=28.29 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 39], 80.00th=[ 47], 90.00th=[ 74], 95.00th=[ 94], | 99.00th=[ 148], 99.50th=[ 163], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 31, max= 535, per=25.82%, avg=183.86, stdev=100.35, samples=64 iops : min= 1, max= 33, avg=10.72, stdev= 6.26, samples=64 write: IOPS=11, BW=189KiB/s (194kB/s)(6256KiB/33058msec); 0 zone resets clat (msec): min=10, max=150, avg=51.61, stdev=27.90 lat (msec): min=10, max=150, avg=51.61, stdev=27.90 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 45], 60.00th=[ 50], | 70.00th=[ 59], 80.00th=[ 72], 90.00th=[ 92], 95.00th=[ 114], | 99.00th=[ 136], 99.50th=[ 148], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 31, max= 447, per=25.27%, avg=189.26, stdev=89.25, samples=65 iops : min= 1, max= 27, avg=11.06, stdev= 5.59, samples=65 lat (msec) : 10=3.78%, 20=17.71%, 50=49.61%, 100=23.05%, 250=5.86% cpu : usr=0.06%, sys=2.65%, ctx=1259, 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=712KiB/s (729kB/s), 171KiB/s-190KiB/s (175kB/s-195kB/s), io=23.4MiB (24.5MB), run=32894-33629msec WRITE: bw=749KiB/s (767kB/s), 183KiB/s-195KiB/s (188kB/s-200kB/s), io=24.6MiB (25.8MB), run=32894-33629msec 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=184679: Sun Nov 16 22:49:45 2025 read: IOPS=2, BW=2126KiB/s (2177kB/s)(7168KiB/3372msec) clat (msec): min=112, max=649, avg=257.50, stdev=179.95 lat (msec): min=112, max=649, avg=257.50, stdev=179.95 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 182], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 199], 80.00th=[ 284], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1988, max= 4071, per=64.95%, avg=2937.50, stdev=1092.82, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1518KiB/s (1555kB/s)(5120KiB/3372msec); 0 zone resets clat (msec): min=109, max=493, avg=292.67, stdev=167.19 lat (msec): min=109, max=493, avg=292.72, stdev=167.19 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1973, max= 2035, per=31.62%, avg=2002.75, stdev=27.65, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=58.33%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=16.52%, ctx=251, 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=184680: Sun Nov 16 22:49:45 2025 read: IOPS=0, BW=452KiB/s (463kB/s)(2048KiB/4527msec) clat (usec): min=565, max=183230, avg=91898.01, stdev=129163.58 lat (usec): min=566, max=183232, avg=91899.73, stdev=129164.21 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[183501], | 70.00th=[183501], 80.00th=[183501], 90.00th=[183501], 95.00th=[183501], | 99.00th=[183501], 99.50th=[183501], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 1750, max= 1878, per=40.11%, avg=1814.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2262KiB/s (2316kB/s)(10.0MiB/4527msec); 0 zone resets clat (msec): min=145, max=864, avg=421.54, stdev=277.38 lat (msec): min=145, max=864, avg=421.60, stdev=277.38 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 150], | 30.00th=[ 201], 40.00th=[ 220], 50.00th=[ 264], 60.00th=[ 317], | 70.00th=[ 625], 80.00th=[ 651], 90.00th=[ 776], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1973, max= 5251, per=48.20%, avg=3052.40, stdev=1510.41, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.04%, sys=12.77%, ctx=118, 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=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=184681: Sun Nov 16 22:49:45 2025 read: IOPS=1, BW=1604KiB/s (1643kB/s)(6144KiB/3830msec) clat (msec): min=3, max=428, avg=224.18, stdev=166.62 lat (msec): min=3, max=428, avg=224.18, stdev=166.62 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 47], | 30.00th=[ 47], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 275], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 1750, max= 4031, per=71.91%, avg=3252.33, stdev=1301.35, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1604KiB/s (1643kB/s)(6144KiB/3830msec); 0 zone resets clat (msec): min=155, max=724, avg=396.06, stdev=208.28 lat (msec): min=155, max=724, avg=396.13, stdev=208.28 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 430], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1973, max= 3624, per=43.91%, avg=2781.00, stdev=903.51, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 4=8.33%, 50=8.33%, 250=16.67%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=12.25%, ctx=188, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184682: Sun Nov 16 22:49:45 2025 read: IOPS=1, BW=1582KiB/s (1620kB/s)(5120KiB/3236msec) clat (usec): min=578, max=299862, avg=188647.93, stdev=116275.88 lat (usec): min=579, max=299862, avg=188649.04, stdev=116275.77 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 578], | 30.00th=[160433], 40.00th=[160433], 50.00th=[238027], 60.00th=[238027], | 70.00th=[244319], 80.00th=[244319], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 1988, max= 3946, per=58.58%, avg=2649.67, stdev=1122.74, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2215KiB/s (2268kB/s)(7168KiB/3236msec); 0 zone resets clat (msec): min=44, max=713, avg=322.95, stdev=221.57 lat (msec): min=44, max=713, avg=323.02, stdev=221.57 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 213], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 264], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 518], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1865, max= 4031, per=37.73%, avg=2389.20, stdev=920.31, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=17.68%, ctx=256, 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=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=4524KiB/s (4633kB/s), 452KiB/s-2126KiB/s (463kB/s-2177kB/s), io=20.0MiB (20.0MB), run=3236-4527msec WRITE: bw=6334KiB/s (6486kB/s), 1518KiB/s-2262KiB/s (1555kB/s-2316kB/s), io=28.0MiB (29.4MB), run=3236-4527msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184684: Sun Nov 16 22:49:46 2025 read: IOPS=1, BW=1967KiB/s (2014kB/s)(7168KiB/3645msec) clat (msec): min=66, max=558, avg=263.46, stdev=214.38 lat (msec): min=66, max=558, avg=263.46, stdev=214.38 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 83], 40.00th=[ 83], 50.00th=[ 157], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 477], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1643, max= 2023, per=39.28%, avg=1907.00, stdev=141.92, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=1, BW=1405KiB/s (1438kB/s)(5120KiB/3645msec); 0 zone resets clat (msec): min=231, max=373, avg=303.32, stdev=65.64 lat (msec): min=231, max=373, avg=303.39, stdev=65.62 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1868, max= 4015, per=38.58%, avg=2622.33, stdev=1207.48, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=16.67%, 500=50.00%, 750=8.33% cpu : usr=0.03%, sys=6.64%, ctx=67, 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=184685: Sun Nov 16 22:49:46 2025 read: IOPS=0, BW=486KiB/s (497kB/s)(2048KiB/4218msec) clat (msec): min=99, max=527, avg=313.77, stdev=302.77 lat (msec): min=99, max=527, avg=313.78, stdev=302.77 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1692, max= 2019, per=38.22%, avg=1855.50, stdev=231.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2428KiB/s (2486kB/s)(10.0MiB/4218msec); 0 zone resets clat (msec): min=117, max=1074, avg=355.79, stdev=298.67 lat (msec): min=117, max=1074, avg=355.86, stdev=298.67 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 132], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 239], 60.00th=[ 247], | 70.00th=[ 288], 80.00th=[ 485], 90.00th=[ 617], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1868, max= 4015, per=34.84%, avg=2368.40, stdev=922.88, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=5.93%, ctx=103, 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=184686: Sun Nov 16 22:49:46 2025 read: IOPS=1, BW=1527KiB/s (1564kB/s)(6144KiB/4023msec) clat (msec): min=71, max=543, avg=278.27, stdev=209.19 lat (msec): min=71, max=543, avg=278.27, stdev=209.19 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 86], 40.00th=[ 130], 50.00th=[ 130], 60.00th=[ 368], | 70.00th=[ 477], 80.00th=[ 477], 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= 3968, max= 4039, per=82.46%, avg=4003.50, stdev=50.20, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1527KiB/s (1564kB/s)(6144KiB/4023msec); 0 zone resets clat (msec): min=88, max=746, avg=385.40, stdev=287.49 lat (msec): min=88, max=746, avg=385.49, stdev=287.51 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 123], | 30.00th=[ 123], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 477], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1917, max= 3737, per=37.57%, avg=2553.67, stdev=1025.78, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=25.00% cpu : usr=0.02%, sys=5.30%, ctx=140, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184687: Sun Nov 16 22:49:46 2025 read: IOPS=1, BW=1292KiB/s (1323kB/s)(5120KiB/3964msec) clat (msec): min=86, max=459, avg=228.20, stdev=145.13 lat (msec): min=86, max=459, avg=228.20, stdev=145.13 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 213], 60.00th=[ 213], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 4015, max= 4039, per=82.95%, avg=4027.00, stdev=16.97, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1808KiB/s (1852kB/s)(7168KiB/3964msec); 0 zone resets clat (msec): min=79, max=842, avg=397.45, stdev=318.83 lat (msec): min=79, max=842, avg=397.52, stdev=318.83 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 81], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 321], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 760], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1768, max= 3968, per=35.39%, avg=2405.75, stdev=1046.60, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.94%, ctx=73, 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=4855KiB/s (4972kB/s), 486KiB/s-1967KiB/s (497kB/s-2014kB/s), io=20.0MiB (20.0MB), run=3645-4218msec WRITE: bw=6798KiB/s (6961kB/s), 1405KiB/s-2428KiB/s (1438kB/s-2486kB/s), io=28.0MiB (29.4MB), run=3645-4218msec 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=184698: Sun Nov 16 22:49:58 2025 read: IOPS=1, BW=6308KiB/s (6459kB/s)(12.0MiB/1948msec) clat (msec): min=351, max=1196, avg=634.11, stdev=487.02 lat (msec): min=351, max=1196, avg=634.11, stdev=487.02 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.70%, ctx=50, 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=184699: Sun Nov 16 22:49:58 2025 read: IOPS=0, BW=1746KiB/s (1788kB/s)(4096KiB/2346msec) clat (nsec): min=819322k, max=819322k, avg=819321723.00, stdev= 0.00 lat (nsec): min=819325k, max=819325k, avg=819324858.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3492KiB/s (3576kB/s)(8192KiB/2346msec); 0 zone resets clat (msec): min=638, max=857, avg=747.61, stdev=154.79 lat (msec): min=638, max=857, avg=747.87, stdev=154.85 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 860], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 8159, max= 8159, per=58.42%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.71%, 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=184700: Sun Nov 16 22:49:58 2025 write: IOPS=1, BW=5642KiB/s (5777kB/s)(12.0MiB/2178msec); 0 zone resets clat (msec): min=205, max=1347, avg=708.19, stdev=583.17 lat (msec): min=205, max=1347, avg=708.45, stdev=583.10 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8159, max= 8159, per=58.42%, avg=8159.00, 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=4.41%, ctx=38, 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=184701: Sun Nov 16 22:49:58 2025 write: IOPS=1, BW=7216KiB/s (7389kB/s)(12.0MiB/1703msec); 0 zone resets clat (msec): min=278, max=821, avg=565.89, stdev=273.18 lat (msec): min=278, max=822, avg=566.23, stdev=273.13 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7713, max= 8159, per=56.82%, avg=7936.00, stdev=315.37, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.18%, sys=13.75%, ctx=64, 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=6984KiB/s (7151kB/s), 1746KiB/s-6308KiB/s (1788kB/s-6459kB/s), io=16.0MiB (16.8MB), run=1948-2346msec WRITE: bw=13.6MiB/s (14.3MB/s), 3492KiB/s-7216KiB/s (3576kB/s-7389kB/s), io=32.0MiB (33.6MB), run=1703-2346msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184693: Sun Nov 16 22:49:58 2025 read: IOPS=1, BW=5908KiB/s (6049kB/s)(12.0MiB/2080msec) clat (msec): min=632, max=714, avg=668.58, stdev=41.86 lat (msec): min=632, max=714, avg=668.59, stdev=41.86 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7937, max= 8078, per=100.00%, avg=8007.50, stdev=99.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=20.14%, ctx=566, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184694: Sun Nov 16 22:49:58 2025 read: IOPS=0, BW=1726KiB/s (1768kB/s)(4096KiB/2373msec) clat (nsec): min=614304k, max=614304k, avg=614304136.00, stdev= 0.00 lat (nsec): min=614305k, max=614305k, avg=614305207.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3452KiB/s (3535kB/s)(8192KiB/2373msec); 0 zone resets clat (msec): min=612, max=1101, avg=856.78, stdev=346.14 lat (msec): min=612, max=1101, avg=857.16, stdev=346.10 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7937, max= 7937, per=69.71%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.17%, sys=7.80%, ctx=221, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184695: Sun Nov 16 22:49:58 2025 write: IOPS=1, BW=4270KiB/s (4372kB/s)(12.0MiB/2878msec); 0 zone resets clat (msec): min=218, max=1963, avg=951.00, stdev=905.84 lat (msec): min=218, max=1964, avg=951.33, stdev=905.84 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8078, max= 8143, per=71.24%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.72%, ctx=61, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184696: Sun Nov 16 22:49:58 2025 write: IOPS=2, BW=9.87MiB/s (10.3MB/s)(12.0MiB/1216msec); 0 zone resets clat (msec): min=195, max=675, avg=390.84, stdev=252.19 lat (msec): min=195, max=676, avg=391.19, stdev=252.28 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min=11538, max=11538, per=100.00%, avg=11538.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=13.00%, ctx=54, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6904KiB/s (7070kB/s), 1726KiB/s-5908KiB/s (1768kB/s-6049kB/s), io=16.0MiB (16.8MB), run=2080-2373msec WRITE: bw=11.1MiB/s (11.7MB/s), 3452KiB/s-9.87MiB/s (3535kB/s-10.3MB/s), io=32.0MiB (33.6MB), run=1216-2878msec