== sanity test 398b: DIO and buffer IO race ============== 21:07:06 (1768010826) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.70674 s, 18.6 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=186176: Fri Jan 9 21:07:57 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(5992KiB/42496msec) clat (usec): min=203, max=421496, avg=15286.55, stdev=13459.97 lat (usec): min=203, max=421497, avg=15287.30, stdev=13459.83 clat percentiles (usec): | 1.00th=[ 343], 5.00th=[ 6456], 10.00th=[ 7504], 20.00th=[ 8979], | 30.00th=[ 10159], 40.00th=[ 11600], 50.00th=[ 13435], 60.00th=[ 15533], | 70.00th=[ 17433], 80.00th=[ 20055], 90.00th=[ 23462], 95.00th=[ 29230], | 99.00th=[ 47449], 99.50th=[ 53216], 99.90th=[100140], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 13, max= 208, per=24.86%, avg=140.44, stdev=35.48, samples=84 iops : min= 3, max= 52, avg=34.77, stdev= 8.90, samples=84 write: IOPS=37, BW=148KiB/s (152kB/s)(6296KiB/42496msec); 0 zone resets clat (usec): min=627, max=68231, avg=12319.03, stdev=9767.88 lat (usec): min=628, max=68231, avg=12319.72, stdev=9767.88 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 2073], 10.00th=[ 2573], 20.00th=[ 3195], | 30.00th=[ 5342], 40.00th=[ 8160], 50.00th=[10159], 60.00th=[12125], | 70.00th=[15533], 80.00th=[19530], 90.00th=[25560], 95.00th=[30540], | 99.00th=[43254], 99.50th=[52691], 99.90th=[61080], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 71, max= 232, per=25.20%, avg=148.93, stdev=33.50, samples=83 iops : min= 17, max= 58, avg=36.89, stdev= 8.35, samples=83 lat (usec) : 250=0.10%, 500=0.88%, 750=0.26%, 1000=0.55% lat (msec) : 2=1.73%, 4=10.71%, 10=24.90%, 20=41.31%, 50=18.82% lat (msec) : 100=0.68%, 250=0.03%, 500=0.03% cpu : usr=0.09%, sys=24.95%, ctx=8990, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186177: Fri Jan 9 21:07:57 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(5940KiB/42474msec) clat (usec): min=106, max=77460, avg=15278.74, stdev=7962.71 lat (usec): min=107, max=77461, avg=15279.59, stdev=7962.69 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 6587], 10.00th=[ 7635], 20.00th=[ 8979], | 30.00th=[10552], 40.00th=[12125], 50.00th=[13960], 60.00th=[15926], | 70.00th=[17957], 80.00th=[20317], 90.00th=[23987], 95.00th=[28443], | 99.00th=[44303], 99.50th=[49021], 99.90th=[73925], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 6, max= 208, per=24.71%, avg=139.61, stdev=35.29, samples=84 iops : min= 1, max= 52, avg=34.56, stdev= 8.90, samples=84 write: IOPS=37, BW=149KiB/s (153kB/s)(6348KiB/42474msec); 0 zone resets clat (usec): min=691, max=400948, avg=12345.61, stdev=13663.34 lat (usec): min=692, max=400949, avg=12346.35, stdev=13663.35 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2245], 10.00th=[ 2638], 20.00th=[ 3195], | 30.00th=[ 5014], 40.00th=[ 8291], 50.00th=[ 10290], 60.00th=[ 12125], | 70.00th=[ 15008], 80.00th=[ 19268], 90.00th=[ 25035], 95.00th=[ 30016], | 99.00th=[ 44303], 99.50th=[ 51643], 99.90th=[ 68682], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 19, max= 230, per=25.15%, avg=148.62, stdev=36.17, samples=84 iops : min= 4, max= 57, avg=36.81, stdev= 9.03, samples=84 lat (usec) : 250=0.10%, 500=0.39%, 750=0.20%, 1000=0.39% lat (msec) : 2=1.56%, 4=12.01%, 10=23.73%, 20=41.99%, 50=19.14% lat (msec) : 100=0.46%, 500=0.03% cpu : usr=0.11%, sys=25.36%, ctx=9032, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186179: Fri Jan 9 21:07:57 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(6028KiB/42425msec) clat (usec): min=154, max=66403, avg=14876.81, stdev=7532.71 lat (usec): min=154, max=66404, avg=14877.44, stdev=7532.74 clat percentiles (usec): | 1.00th=[ 351], 5.00th=[ 6587], 10.00th=[ 7635], 20.00th=[ 8979], | 30.00th=[10290], 40.00th=[11731], 50.00th=[13435], 60.00th=[15401], | 70.00th=[17171], 80.00th=[19792], 90.00th=[23987], 95.00th=[28967], | 99.00th=[40633], 99.50th=[46400], 99.90th=[49021], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 63, max= 207, per=25.40%, avg=143.53, stdev=30.88, samples=83 iops : min= 15, max= 51, avg=35.54, stdev= 7.77, samples=83 write: IOPS=36, BW=148KiB/s (151kB/s)(6260KiB/42425msec); 0 zone resets clat (usec): min=597, max=413401, avg=12653.19, stdev=13970.95 lat (usec): min=597, max=413402, avg=12653.92, stdev=13970.99 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 2212], 10.00th=[ 2606], 20.00th=[ 3163], | 30.00th=[ 5211], 40.00th=[ 8455], 50.00th=[ 10290], 60.00th=[ 12780], | 70.00th=[ 15664], 80.00th=[ 19792], 90.00th=[ 25560], 95.00th=[ 32113], | 99.00th=[ 41157], 99.50th=[ 47449], 99.90th=[ 72877], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 13, max= 232, per=24.83%, avg=146.73, stdev=37.03, samples=84 iops : min= 3, max= 58, avg=36.35, stdev= 9.23, samples=84 lat (usec) : 250=0.16%, 500=0.68%, 750=0.36%, 1000=0.46% lat (msec) : 2=1.40%, 4=11.17%, 10=24.25%, 20=41.86%, 50=19.53% lat (msec) : 100=0.10%, 500=0.03% cpu : usr=0.10%, sys=25.21%, ctx=9013, 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=186180: Fri Jan 9 21:07:57 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(6052KiB/42385msec) clat (usec): min=112, max=59725, avg=15152.79, stdev=7563.94 lat (usec): min=113, max=59725, avg=15153.42, stdev=7563.95 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 6718], 10.00th=[ 7767], 20.00th=[ 9241], | 30.00th=[10683], 40.00th=[12256], 50.00th=[13829], 60.00th=[15664], | 70.00th=[17695], 80.00th=[19792], 90.00th=[23987], 95.00th=[29230], | 99.00th=[40633], 99.50th=[43254], 99.90th=[58983], 99.95th=[59507], | 99.99th=[59507] bw ( KiB/s): min= 48, max= 223, per=25.59%, avg=144.59, stdev=28.51, samples=83 iops : min= 12, max= 55, avg=35.81, stdev= 7.09, samples=83 write: IOPS=36, BW=147KiB/s (151kB/s)(6236KiB/42385msec); 0 zone resets clat (usec): min=569, max=406044, avg=12355.97, stdev=13591.76 lat (usec): min=569, max=406045, avg=12356.68, stdev=13591.86 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 2245], 10.00th=[ 2573], 20.00th=[ 3294], | 30.00th=[ 5735], 40.00th=[ 8291], 50.00th=[ 10421], 60.00th=[ 12256], | 70.00th=[ 15270], 80.00th=[ 19268], 90.00th=[ 24773], 95.00th=[ 28443], | 99.00th=[ 41681], 99.50th=[ 52167], 99.90th=[ 65274], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 13, max= 247, per=24.88%, avg=147.04, stdev=37.34, samples=84 iops : min= 3, max= 61, avg=36.42, stdev= 9.33, samples=84 lat (usec) : 250=0.07%, 500=0.65%, 750=0.23%, 1000=0.33% lat (msec) : 2=1.63%, 4=10.77%, 10=23.24%, 20=44.34%, 50=18.29% lat (msec) : 100=0.42%, 500=0.03% cpu : usr=0.10%, sys=25.52%, ctx=9166, 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=565KiB/s (579kB/s), 140KiB/s-143KiB/s (143kB/s-146kB/s), io=23.4MiB (24.6MB), run=42385-42496msec WRITE: bw=592KiB/s (606kB/s), 147KiB/s-149KiB/s (151kB/s-153kB/s), io=24.6MiB (25.7MB), run=42385-42496msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186181: Fri Jan 9 21:08:03 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(5992KiB/48090msec) clat (msec): min=2, max=441, avg=13.71, stdev=15.67 lat (msec): min=2, max=441, avg=13.72, stdev=15.67 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 15], 80.00th=[ 21], 90.00th=[ 29], 95.00th=[ 35], | 99.00th=[ 59], 99.50th=[ 70], 99.90th=[ 81], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 19, max= 456, per=24.83%, avg=123.67, stdev=89.37, samples=95 iops : min= 4, max= 114, avg=30.61, stdev=22.45, samples=95 write: IOPS=32, BW=131KiB/s (134kB/s)(6296KiB/48090msec); 0 zone resets clat (msec): min=3, max=111, avg=17.40, stdev=12.76 lat (msec): min=3, max=111, avg=17.40, stdev=12.76 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 28], 90.00th=[ 35], 95.00th=[ 42], | 99.00th=[ 57], 99.50th=[ 67], 99.90th=[ 91], 99.95th=[ 112], | 99.99th=[ 112] bw ( KiB/s): min= 39, max= 432, per=25.06%, avg=130.83, stdev=88.44, samples=94 iops : min= 9, max= 108, avg=32.40, stdev=22.23, samples=94 lat (msec) : 4=3.81%, 10=40.79%, 20=27.70%, 50=25.81%, 100=1.82% lat (msec) : 250=0.03%, 500=0.03% cpu : usr=0.09%, sys=12.07%, ctx=5465, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186182: Fri Jan 9 21:08:03 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(5940KiB/48156msec) clat (msec): min=2, max=414, avg=14.00, stdev=15.48 lat (msec): min=2, max=414, avg=14.00, stdev=15.48 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 8], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 16], 80.00th=[ 21], 90.00th=[ 31], 95.00th=[ 37], | 99.00th=[ 53], 99.50th=[ 61], 99.90th=[ 74], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 6, max= 440, per=24.54%, avg=122.19, stdev=89.17, samples=95 iops : min= 1, max= 110, avg=30.24, stdev=22.39, samples=95 write: IOPS=32, BW=132KiB/s (135kB/s)(6348KiB/48156msec); 0 zone resets clat (usec): min=2972, max=89777, avg=17152.08, stdev=12362.85 lat (usec): min=2973, max=89778, avg=17152.80, stdev=12362.89 clat percentiles (usec): | 1.00th=[ 4015], 5.00th=[ 4883], 10.00th=[ 5538], 20.00th=[ 6259], | 30.00th=[ 7635], 40.00th=[10159], 50.00th=[13304], 60.00th=[17695], | 70.00th=[21890], 80.00th=[26870], 90.00th=[33817], 95.00th=[40109], | 99.00th=[59507], 99.50th=[63177], 99.90th=[76022], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 13, max= 432, per=24.74%, avg=129.17, stdev=88.17, samples=95 iops : min= 3, max= 108, avg=31.99, stdev=22.15, samples=95 lat (msec) : 4=4.65%, 10=40.36%, 20=26.92%, 50=26.37%, 100=1.66% lat (msec) : 500=0.03% cpu : usr=0.10%, sys=11.93%, ctx=5441, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186183: Fri Jan 9 21:08:03 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(6028KiB/47583msec) clat (usec): min=2557, max=80722, avg=13522.86, stdev=10982.60 lat (usec): min=2557, max=80722, avg=13523.50, stdev=10982.61 clat percentiles (usec): | 1.00th=[ 3130], 5.00th=[ 3884], 10.00th=[ 4293], 20.00th=[ 4948], | 30.00th=[ 6128], 40.00th=[ 8291], 50.00th=[ 9634], 60.00th=[11863], | 70.00th=[15008], 80.00th=[20579], 90.00th=[29230], 95.00th=[34866], | 99.00th=[51119], 99.50th=[60031], 99.90th=[74974], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 13, max= 432, per=25.19%, avg=125.44, stdev=87.76, samples=94 iops : min= 3, max= 108, avg=31.05, stdev=22.04, samples=94 write: IOPS=32, BW=132KiB/s (135kB/s)(6260KiB/47583msec); 0 zone resets clat (msec): min=3, max=419, avg=17.29, stdev=15.85 lat (msec): min=3, max=419, avg=17.29, stdev=15.85 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 27], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 60], 99.50th=[ 67], 99.90th=[ 113], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 19, max= 408, per=24.92%, avg=130.10, stdev=83.87, samples=94 iops : min= 4, max= 102, avg=32.21, stdev=21.07, samples=94 lat (msec) : 4=3.09%, 10=41.15%, 20=28.84%, 50=25.36%, 100=1.50% lat (msec) : 250=0.03%, 500=0.03% cpu : usr=0.10%, sys=12.17%, ctx=5391, 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=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=186184: Fri Jan 9 21:08:03 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(6052KiB/48009msec) clat (usec): min=2187, max=74008, avg=13645.68, stdev=11392.34 lat (usec): min=2187, max=74008, avg=13646.25, stdev=11392.36 clat percentiles (usec): | 1.00th=[ 2999], 5.00th=[ 3785], 10.00th=[ 4146], 20.00th=[ 4752], | 30.00th=[ 5932], 40.00th=[ 8225], 50.00th=[ 9765], 60.00th=[11994], | 70.00th=[15139], 80.00th=[20579], 90.00th=[30016], 95.00th=[36439], | 99.00th=[55313], 99.50th=[64750], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 47, max= 464, per=25.35%, avg=126.23, stdev=86.83, samples=94 iops : min= 11, max= 116, avg=31.26, stdev=21.81, samples=94 write: IOPS=32, BW=130KiB/s (133kB/s)(6236KiB/48009msec); 0 zone resets clat (msec): min=3, max=424, avg=17.45, stdev=15.96 lat (msec): min=3, max=424, avg=17.45, stdev=15.96 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 27], 90.00th=[ 34], 95.00th=[ 39], | 99.00th=[ 61], 99.50th=[ 68], 99.90th=[ 86], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 13, max= 432, per=24.71%, avg=129.00, stdev=89.29, samples=95 iops : min= 3, max= 108, avg=31.95, stdev=22.41, samples=95 lat (msec) : 4=4.17%, 10=40.27%, 20=28.45%, 50=25.42%, 100=1.66% lat (msec) : 500=0.03% cpu : usr=0.11%, sys=12.12%, ctx=5476, 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=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=499KiB/s (511kB/s), 123KiB/s-127KiB/s (126kB/s-130kB/s), io=23.4MiB (24.6MB), run=47583-48156msec WRITE: bw=522KiB/s (535kB/s), 130KiB/s-132KiB/s (133kB/s-135kB/s), io=24.6MiB (25.7MB), run=47583-48156msec 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=186204: Fri Jan 9 21:08:21 2026 read: IOPS=29, BW=478KiB/s (489kB/s)(5920KiB/12388msec) clat (usec): min=217, max=51919, avg=16754.27, stdev=8167.59 lat (usec): min=217, max=51920, avg=16755.23, stdev=8167.21 clat percentiles (usec): | 1.00th=[ 262], 5.00th=[ 5669], 10.00th=[ 9110], 20.00th=[10814], | 30.00th=[12387], 40.00th=[13960], 50.00th=[15270], 60.00th=[17171], | 70.00th=[19268], 80.00th=[22938], 90.00th=[27395], 95.00th=[32900], | 99.00th=[39060], 99.50th=[49021], 99.90th=[52167], 99.95th=[52167], | 99.99th=[52167] bw ( KiB/s): min= 288, max= 672, per=24.83%, avg=471.46, stdev=106.36, samples=24 iops : min= 18, max= 42, avg=29.04, stdev= 6.64, samples=24 write: IOPS=32, BW=514KiB/s (526kB/s)(6368KiB/12388msec); 0 zone resets clat (usec): min=1587, max=53079, avg=15328.91, stdev=9557.03 lat (usec): min=1588, max=53080, avg=15329.76, stdev=9557.06 clat percentiles (usec): | 1.00th=[ 2802], 5.00th=[ 4178], 10.00th=[ 4555], 20.00th=[ 6063], | 30.00th=[ 8848], 40.00th=[11600], 50.00th=[13435], 60.00th=[15926], | 70.00th=[19006], 80.00th=[23200], 90.00th=[28443], 95.00th=[32375], | 99.00th=[43779], 99.50th=[47973], 99.90th=[53216], 99.95th=[53216], | 99.99th=[53216] bw ( KiB/s): min= 207, max= 669, per=25.74%, avg=514.38, stdev=114.35, samples=24 iops : min= 12, max= 41, avg=31.71, stdev= 7.27, samples=24 lat (usec) : 250=0.26%, 500=1.95% lat (msec) : 2=0.39%, 4=2.08%, 10=19.79%, 20=47.79%, 50=27.47% lat (msec) : 100=0.26% cpu : usr=0.02%, sys=28.15%, ctx=2988, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186207: Fri Jan 9 21:08:21 2026 read: IOPS=28, BW=461KiB/s (472kB/s)(5744KiB/12449msec) clat (usec): min=129, max=44752, avg=16721.94, stdev=7408.41 lat (usec): min=129, max=44753, avg=16722.42, stdev=7408.42 clat percentiles (usec): | 1.00th=[ 249], 5.00th=[ 5866], 10.00th=[ 8979], 20.00th=[10814], | 30.00th=[13042], 40.00th=[14615], 50.00th=[16057], 60.00th=[17695], | 70.00th=[20055], 80.00th=[22414], 90.00th=[25560], 95.00th=[29492], | 99.00th=[40109], 99.50th=[44303], 99.90th=[44827], 99.95th=[44827], | 99.99th=[44827] bw ( KiB/s): min= 147, max= 640, per=24.15%, avg=458.67, stdev=117.01, samples=24 iops : min= 9, max= 40, avg=28.25, stdev= 7.39, samples=24 write: IOPS=32, BW=526KiB/s (538kB/s)(6544KiB/12449msec); 0 zone resets clat (usec): min=1068, max=70587, avg=15493.98, stdev=9965.86 lat (usec): min=1069, max=70588, avg=15495.12, stdev=9965.93 clat percentiles (usec): | 1.00th=[ 3097], 5.00th=[ 3851], 10.00th=[ 4555], 20.00th=[ 6063], | 30.00th=[ 9241], 40.00th=[10945], 50.00th=[13173], 60.00th=[16450], | 70.00th=[19530], 80.00th=[23200], 90.00th=[28705], 95.00th=[34341], | 99.00th=[47973], 99.50th=[49021], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 287, max= 764, per=25.98%, avg=519.12, stdev=132.25, samples=24 iops : min= 17, max= 47, avg=32.04, stdev= 8.23, samples=24 lat (usec) : 250=0.52%, 500=1.43%, 1000=0.13% lat (msec) : 2=0.13%, 4=3.12%, 10=19.79%, 20=45.57%, 50=29.04% lat (msec) : 100=0.26% cpu : usr=0.08%, sys=28.39%, ctx=2994, 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=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=186208: Fri Jan 9 21:08:21 2026 read: IOPS=31, BW=511KiB/s (523kB/s)(6256KiB/12251msec) clat (usec): min=249, max=62501, avg=17293.42, stdev=8738.08 lat (usec): min=249, max=62501, avg=17293.99, stdev=8738.09 clat percentiles (usec): | 1.00th=[ 293], 5.00th=[ 5145], 10.00th=[ 8979], 20.00th=[10814], | 30.00th=[12387], 40.00th=[14091], 50.00th=[16319], 60.00th=[18744], | 70.00th=[20317], 80.00th=[22938], 90.00th=[27919], 95.00th=[31589], | 99.00th=[50070], 99.50th=[56886], 99.90th=[62653], 99.95th=[62653], | 99.99th=[62653] bw ( KiB/s): min= 325, max= 800, per=27.14%, avg=515.33, stdev=113.11, samples=24 iops : min= 20, max= 50, avg=31.79, stdev= 7.22, samples=24 write: IOPS=30, BW=492KiB/s (504kB/s)(6032KiB/12251msec); 0 zone resets clat (usec): min=1509, max=52214, avg=14479.82, stdev=8264.01 lat (usec): min=1510, max=52215, avg=14480.92, stdev=8263.90 clat percentiles (usec): | 1.00th=[ 2376], 5.00th=[ 4015], 10.00th=[ 4686], 20.00th=[ 6849], | 30.00th=[ 9634], 40.00th=[11469], 50.00th=[13304], 60.00th=[15270], | 70.00th=[17957], 80.00th=[21103], 90.00th=[25035], 95.00th=[29230], | 99.00th=[38011], 99.50th=[46400], 99.90th=[52167], 99.95th=[52167], | 99.99th=[52167] bw ( KiB/s): min= 256, max= 796, per=24.39%, avg=487.29, stdev=128.37, samples=24 iops : min= 16, max= 49, avg=30.04, stdev= 8.03, samples=24 lat (usec) : 250=0.13%, 500=1.69%, 750=0.13% lat (msec) : 2=0.39%, 4=2.21%, 10=19.14%, 20=49.61%, 50=26.04% lat (msec) : 100=0.65% cpu : usr=0.07%, sys=28.40%, ctx=2940, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186210: Fri Jan 9 21:08:21 2026 read: IOPS=29, BW=478KiB/s (490kB/s)(6032KiB/12612msec) clat (usec): min=203, max=61198, avg=16771.29, stdev=8393.19 lat (usec): min=204, max=61198, avg=16771.81, stdev=8393.19 clat percentiles (usec): | 1.00th=[ 318], 5.00th=[ 515], 10.00th=[ 8160], 20.00th=[10552], | 30.00th=[12387], 40.00th=[14222], 50.00th=[16188], 60.00th=[18220], | 70.00th=[20055], 80.00th=[22676], 90.00th=[26870], 95.00th=[30016], | 99.00th=[40633], 99.50th=[56361], 99.90th=[61080], 99.95th=[61080], | 99.99th=[61080] bw ( KiB/s): min= 207, max= 736, per=25.06%, avg=475.96, stdev=116.86, samples=25 iops : min= 12, max= 46, avg=29.32, stdev= 7.41, samples=25 write: IOPS=31, BW=496KiB/s (508kB/s)(6256KiB/12612msec); 0 zone resets clat (usec): min=1027, max=57505, avg=15747.22, stdev=10177.15 lat (usec): min=1028, max=57506, avg=15748.49, stdev=10177.15 clat percentiles (usec): | 1.00th=[ 2900], 5.00th=[ 4047], 10.00th=[ 4686], 20.00th=[ 6849], | 30.00th=[ 9241], 40.00th=[11076], 50.00th=[13173], 60.00th=[16319], | 70.00th=[19006], 80.00th=[23725], 90.00th=[29754], 95.00th=[36963], | 99.00th=[46400], 99.50th=[51643], 99.90th=[57410], 99.95th=[57410], | 99.99th=[57410] bw ( KiB/s): min= 236, max= 733, per=24.84%, avg=496.24, stdev=103.32, samples=25 iops : min= 14, max= 45, avg=30.60, stdev= 6.51, samples=25 lat (usec) : 250=0.13%, 500=2.21%, 750=0.26%, 1000=0.13% lat (msec) : 2=0.52%, 4=1.82%, 10=20.31%, 20=45.57%, 50=28.39% lat (msec) : 100=0.65% cpu : usr=0.10%, sys=27.63%, ctx=2927, 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=1899KiB/s (1945kB/s), 461KiB/s-511KiB/s (472kB/s-523kB/s), io=23.4MiB (24.5MB), run=12251-12612msec WRITE: bw=1998KiB/s (2046kB/s), 492KiB/s-526KiB/s (504kB/s-538kB/s), io=24.6MiB (25.8MB), run=12251-12612msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186205: Fri Jan 9 21:08:22 2026 read: IOPS=26, BW=430KiB/s (440kB/s)(5920KiB/13778msec) clat (usec): min=2073, max=62005, avg=16232.10, stdev=11698.69 lat (usec): min=2074, max=62006, avg=16232.69, stdev=11698.67 clat percentiles (usec): | 1.00th=[ 2311], 5.00th=[ 4490], 10.00th=[ 5604], 20.00th=[ 7504], | 30.00th=[ 8979], 40.00th=[10159], 50.00th=[11994], 60.00th=[14091], | 70.00th=[17957], 80.00th=[24773], 90.00th=[35390], 95.00th=[38011], | 99.00th=[57410], 99.50th=[60031], 99.90th=[62129], 99.95th=[62129], | 99.99th=[62129] bw ( KiB/s): min= 159, max= 992, per=23.83%, avg=414.19, stdev=180.40, samples=27 iops : min= 9, max= 62, avg=25.41, stdev=11.28, samples=27 write: IOPS=28, BW=462KiB/s (473kB/s)(6368KiB/13778msec); 0 zone resets clat (usec): min=2970, max=68931, avg=19473.66, stdev=11892.71 lat (usec): min=2971, max=68933, avg=19481.93, stdev=11886.77 clat percentiles (usec): | 1.00th=[ 5014], 5.00th=[ 6390], 10.00th=[ 7308], 20.00th=[ 9765], | 30.00th=[11207], 40.00th=[13173], 50.00th=[16450], 60.00th=[19792], | 70.00th=[22938], 80.00th=[28967], 90.00th=[36439], 95.00th=[44303], | 99.00th=[56886], 99.50th=[61080], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 159, max= 1120, per=24.79%, avg=453.48, stdev=203.87, samples=27 iops : min= 9, max= 70, avg=27.85, stdev=12.93, samples=27 lat (msec) : 4=1.82%, 10=27.60%, 20=37.50%, 50=30.73%, 100=2.34% cpu : usr=0.09%, sys=13.15%, ctx=1481, 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=186206: Fri Jan 9 21:08:22 2026 read: IOPS=26, BW=422KiB/s (433kB/s)(5744KiB/13598msec) clat (usec): min=3810, max=82061, avg=15194.50, stdev=10935.03 lat (usec): min=3810, max=82061, avg=15194.98, stdev=10935.03 clat percentiles (usec): | 1.00th=[ 4178], 5.00th=[ 5145], 10.00th=[ 6128], 20.00th=[ 7701], | 30.00th=[ 8979], 40.00th=[10290], 50.00th=[11207], 60.00th=[12780], | 70.00th=[15533], 80.00th=[21103], 90.00th=[31589], 95.00th=[39060], | 99.00th=[57934], 99.50th=[72877], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 205, max= 1056, per=24.39%, avg=423.96, stdev=181.30, samples=27 iops : min= 12, max= 66, avg=26.00, stdev=11.43, samples=27 write: IOPS=30, BW=481KiB/s (493kB/s)(6544KiB/13598msec); 0 zone resets clat (usec): min=4140, max=68246, avg=19704.51, stdev=11976.22 lat (usec): min=4141, max=68247, avg=19705.73, stdev=11976.19 clat percentiles (usec): | 1.00th=[ 5342], 5.00th=[ 6390], 10.00th=[ 7439], 20.00th=[ 9503], | 30.00th=[11207], 40.00th=[13304], 50.00th=[17171], 60.00th=[20841], | 70.00th=[24249], 80.00th=[28181], 90.00th=[35914], 95.00th=[42206], | 99.00th=[60031], 99.50th=[64226], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 223, max= 1152, per=26.26%, avg=480.22, stdev=220.37, samples=27 iops : min= 13, max= 72, avg=29.52, stdev=14.00, samples=27 lat (msec) : 4=0.13%, 10=29.17%, 20=38.15%, 50=30.34%, 100=2.21% cpu : usr=0.09%, sys=13.07%, ctx=1517, 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=186209: Fri Jan 9 21:08:22 2026 read: IOPS=28, BW=455KiB/s (466kB/s)(6256KiB/13754msec) clat (usec): min=2989, max=80727, avg=15446.57, stdev=11602.65 lat (usec): min=2990, max=80727, avg=15447.13, stdev=11602.65 clat percentiles (usec): | 1.00th=[ 3851], 5.00th=[ 4817], 10.00th=[ 5473], 20.00th=[ 7111], | 30.00th=[ 8455], 40.00th=[10028], 50.00th=[11469], 60.00th=[13829], | 70.00th=[16057], 80.00th=[22152], 90.00th=[31065], 95.00th=[38536], | 99.00th=[57410], 99.50th=[76022], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 205, max= 1216, per=25.96%, avg=451.19, stdev=247.49, samples=27 iops : min= 12, max= 76, avg=27.70, stdev=15.62, samples=27 write: IOPS=27, BW=439KiB/s (449kB/s)(6032KiB/13754msec); 0 zone resets clat (usec): min=3936, max=71799, avg=20225.47, stdev=11848.03 lat (usec): min=3937, max=71800, avg=20226.88, stdev=11848.07 clat percentiles (usec): | 1.00th=[ 4883], 5.00th=[ 6063], 10.00th=[ 7504], 20.00th=[10028], | 30.00th=[11731], 40.00th=[14746], 50.00th=[17433], 60.00th=[21365], | 70.00th=[24773], 80.00th=[30278], 90.00th=[36439], 95.00th=[41157], | 99.00th=[59507], 99.50th=[64750], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 256, max= 928, per=23.43%, avg=428.48, stdev=166.32, samples=27 iops : min= 16, max= 58, avg=26.30, stdev=10.48, samples=27 lat (msec) : 4=0.91%, 10=29.30%, 20=37.11%, 50=30.73%, 100=1.95% cpu : usr=0.10%, sys=12.99%, ctx=1516, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186211: Fri Jan 9 21:08:22 2026 read: IOPS=27, BW=440KiB/s (450kB/s)(6032KiB/13722msec) clat (usec): min=3025, max=76611, avg=15756.09, stdev=11325.92 lat (usec): min=3026, max=76611, avg=15756.64, stdev=11325.92 clat percentiles (usec): | 1.00th=[ 3752], 5.00th=[ 4686], 10.00th=[ 5276], 20.00th=[ 6849], | 30.00th=[ 8848], 40.00th=[10421], 50.00th=[11600], 60.00th=[14222], | 70.00th=[17957], 80.00th=[23200], 90.00th=[32900], 95.00th=[39060], | 99.00th=[53740], 99.50th=[68682], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 205, max= 1216, per=24.88%, avg=432.37, stdev=230.66, samples=27 iops : min= 12, max= 76, avg=26.52, stdev=14.60, samples=27 write: IOPS=28, BW=456KiB/s (467kB/s)(6256KiB/13722msec); 0 zone resets clat (usec): min=4106, max=69055, avg=19703.33, stdev=11726.84 lat (usec): min=4107, max=69056, avg=19704.56, stdev=11726.91 clat percentiles (usec): | 1.00th=[ 5211], 5.00th=[ 6325], 10.00th=[ 7308], 20.00th=[ 9896], | 30.00th=[11469], 40.00th=[13698], 50.00th=[16188], 60.00th=[20317], | 70.00th=[23987], 80.00th=[29492], 90.00th=[35914], 95.00th=[41157], | 99.00th=[56361], 99.50th=[64750], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 286, max= 1024, per=24.65%, avg=450.81, stdev=191.08, samples=27 iops : min= 17, max= 64, avg=27.70, stdev=12.09, samples=27 lat (msec) : 4=1.04%, 10=27.86%, 20=38.93%, 50=30.60%, 100=1.56% cpu : usr=0.07%, sys=13.20%, ctx=1566, 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=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=1738KiB/s (1780kB/s), 422KiB/s-455KiB/s (433kB/s-466kB/s), io=23.4MiB (24.5MB), run=13598-13778msec WRITE: bw=1829KiB/s (1873kB/s), 439KiB/s-481KiB/s (449kB/s-493kB/s), io=24.6MiB (25.8MB), run=13598-13778msec 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=186223: Fri Jan 9 21:08:30 2026 read: IOPS=3, BW=3420KiB/s (3502kB/s)(7168KiB/2096msec) clat (usec): min=630, max=268004, avg=118532.93, stdev=79111.79 lat (usec): min=631, max=268005, avg=118533.92, stdev=79111.78 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[ 94897], | 30.00th=[100140], 40.00th=[100140], 50.00th=[109577], 60.00th=[119014], | 70.00th=[119014], 80.00th=[137364], 90.00th=[267387], 95.00th=[267387], | 99.00th=[267387], 99.50th=[267387], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 2048, max= 5408, per=50.22%, avg=3847.67, stdev=1692.74, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=2, BW=2443KiB/s (2501kB/s)(5120KiB/2096msec); 0 zone resets clat (msec): min=159, max=348, avg=242.69, stdev=71.51 lat (msec): min=159, max=348, avg=242.74, stdev=71.51 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 249], 60.00th=[ 249], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2043, max= 4039, per=25.27%, avg=2710.00, stdev=1150.95, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=58.33%, 500=25.00% cpu : usr=0.05%, sys=53.84%, ctx=656, 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=186224: Fri Jan 9 21:08:30 2026 read: IOPS=0, BW=785KiB/s (804kB/s)(2048KiB/2609msec) clat (msec): min=37, max=304, avg=171.18, stdev=188.89 lat (msec): min=37, max=304, avg=171.18, stdev=188.89 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 38], 10.00th=[ 38], 20.00th=[ 38], | 30.00th=[ 38], 40.00th=[ 38], 50.00th=[ 38], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1790, max= 2048, per=25.05%, avg=1919.00, stdev=182.43, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3925KiB/s (4019kB/s)(10.0MiB/2609msec); 0 zone resets clat (msec): min=160, max=479, avg=220.33, stdev=99.41 lat (msec): min=160, max=479, avg=220.40, stdev=99.41 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 165], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 180], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 300], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 2019, max= 6144, per=42.56%, avg=4565.50, stdev=1981.93, samples=4 iops : min= 1, max= 6, avg= 3.75, stdev= 2.22, samples=4 lat (msec) : 50=8.33%, 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=52.07%, ctx=336, 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=186225: Fri Jan 9 21:08:30 2026 read: IOPS=2, BW=2698KiB/s (2763kB/s)(6144KiB/2277msec) clat (usec): min=723, max=245875, avg=76557.33, stdev=92504.49 lat (usec): min=725, max=245875, avg=76558.15, stdev=92504.21 clat percentiles (usec): | 1.00th=[ 725], 5.00th=[ 725], 10.00th=[ 725], 20.00th=[ 848], | 30.00th=[ 848], 40.00th=[ 32375], 50.00th=[ 32375], 60.00th=[ 77071], | 70.00th=[102237], 80.00th=[102237], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 2048, max= 4087, per=44.27%, avg=3391.33, stdev=1163.61, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=2, BW=2698KiB/s (2763kB/s)(6144KiB/2277msec); 0 zone resets clat (msec): min=122, max=560, avg=299.94, stdev=189.09 lat (msec): min=122, max=560, avg=299.99, stdev=189.09 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 262], | 70.00th=[ 510], 80.00th=[ 510], 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= 2019, max= 3524, per=22.45%, avg=2408.50, stdev=743.77, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=8.33%, 750=16.67% cpu : usr=0.00%, sys=39.59%, ctx=307, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186226: Fri Jan 9 21:08:30 2026 read: IOPS=1, BW=1915KiB/s (1961kB/s)(5120KiB/2673msec) clat (usec): min=425, max=231990, avg=120754.05, stdev=111580.02 lat (usec): min=426, max=231990, avg=120754.83, stdev=111580.09 clat percentiles (usec): | 1.00th=[ 424], 5.00th=[ 424], 10.00th=[ 424], 20.00th=[ 424], | 30.00th=[ 537], 40.00th=[ 537], 50.00th=[177210], 60.00th=[177210], | 70.00th=[193987], 80.00th=[193987], 90.00th=[231736], 95.00th=[231736], | 99.00th=[231736], 99.50th=[231736], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 1984, max= 6144, per=53.05%, avg=4064.00, stdev=2941.56, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2682KiB/s (2746kB/s)(7168KiB/2673msec); 0 zone resets clat (msec): min=71, max=605, avg=289.05, stdev=174.67 lat (msec): min=71, max=605, avg=289.11, stdev=174.67 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 157], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 234], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 384], 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= 1790, max= 4039, per=22.97%, avg=2464.00, stdev=1055.55, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33% cpu : usr=0.04%, sys=38.92%, ctx=368, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7662KiB/s (7846kB/s), 785KiB/s-3420KiB/s (804kB/s-3502kB/s), io=20.0MiB (20.0MB), run=2096-2673msec WRITE: bw=10.5MiB/s (10.0MB/s), 2443KiB/s-3925KiB/s (2501kB/s-4019kB/s), io=28.0MiB (29.4MB), run=2096-2673msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186219: Fri Jan 9 21:08:30 2026 read: IOPS=3, BW=3938KiB/s (4033kB/s)(7168KiB/1820msec) clat (msec): min=42, max=176, avg=88.71, stdev=52.41 lat (msec): min=42, max=176, avg=88.71, stdev=52.41 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 46], | 30.00th=[ 51], 40.00th=[ 51], 50.00th=[ 66], 60.00th=[ 102], | 70.00th=[ 102], 80.00th=[ 140], 90.00th=[ 178], 95.00th=[ 178], | 99.00th=[ 178], 99.50th=[ 178], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 2011, max= 8576, per=72.36%, avg=5293.50, stdev=4642.16, samples=2 iops : min= 1, max= 8, avg= 4.50, stdev= 4.95, samples=2 write: IOPS=2, BW=2813KiB/s (2881kB/s)(5120KiB/1820msec); 0 zone resets clat (msec): min=103, max=352, avg=232.33, stdev=89.17 lat (msec): min=103, max=353, avg=232.39, stdev=89.17 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 255], 80.00th=[ 255], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1715, max= 4023, per=25.34%, avg=2595.33, stdev=1247.56, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 50=16.67%, 100=16.67%, 250=50.00%, 500=16.67% cpu : usr=0.00%, sys=19.63%, ctx=149, 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=186220: Fri Jan 9 21:08:30 2026 read: IOPS=0, BW=837KiB/s (857kB/s)(2048KiB/2446msec) clat (msec): min=189, max=260, avg=225.02, stdev=50.17 lat (msec): min=189, max=260, avg=225.02, stdev=50.17 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 262], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 262], 95.00th=[ 262], | 99.00th=[ 262], 99.50th=[ 262], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 1718, max= 2048, per=25.74%, avg=1883.00, stdev=233.35, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=4, BW=4186KiB/s (4287kB/s)(10.0MiB/2446msec); 0 zone resets clat (msec): min=57, max=500, avg=197.56, stdev=124.51 lat (msec): min=57, max=500, avg=197.64, stdev=124.50 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 97], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 249], 90.00th=[ 266], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1718, max= 6144, per=34.09%, avg=3492.25, stdev=2060.61, samples=4 iops : min= 1, max= 6, avg= 3.00, stdev= 2.45, samples=4 lat (msec) : 100=16.67%, 250=58.33%, 500=16.67%, 750=8.33% cpu : usr=0.00%, sys=18.20%, ctx=94, 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=186221: Fri Jan 9 21:08:30 2026 read: IOPS=2, BW=2195KiB/s (2248kB/s)(6144KiB/2799msec) clat (msec): min=28, max=343, avg=134.45, stdev=118.29 lat (msec): min=28, max=343, avg=134.45, stdev=118.29 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 29], 10.00th=[ 29], 20.00th=[ 59], | 30.00th=[ 59], 40.00th=[ 68], 50.00th=[ 68], 60.00th=[ 110], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 3968, max= 4096, per=55.11%, avg=4032.00, stdev=90.51, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2195KiB/s (2248kB/s)(6144KiB/2799msec); 0 zone resets clat (msec): min=26, max=776, avg=324.69, stdev=255.51 lat (msec): min=26, max=776, avg=324.75, stdev=255.52 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 27], 10.00th=[ 27], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 275], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1984, max= 3453, per=24.24%, avg=2482.67, stdev=840.44, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=16.67%, 100=16.67%, 250=25.00%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=19.30%, ctx=144, 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=186222: Fri Jan 9 21:08:30 2026 read: IOPS=1, BW=1974KiB/s (2021kB/s)(5120KiB/2594msec) clat (msec): min=54, max=392, avg=192.66, stdev=131.13 lat (msec): min=54, max=392, avg=192.66, stdev=131.13 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 4023, max= 4096, per=55.49%, avg=4059.50, stdev=51.62, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2763KiB/s (2830kB/s)(7168KiB/2594msec); 0 zone resets clat (msec): min=58, max=378, avg=224.89, stdev=101.73 lat (msec): min=58, max=378, avg=224.95, stdev=101.72 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 153], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 234], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 292], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 3482, max= 4096, per=36.99%, avg=3789.00, stdev=434.16, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 lat (msec) : 100=25.00%, 250=50.00%, 500=25.00% cpu : usr=0.04%, sys=21.60%, ctx=187, 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=7317KiB/s (7493kB/s), 837KiB/s-3938KiB/s (857kB/s-4033kB/s), io=20.0MiB (20.0MB), run=1820-2799msec WRITE: bw=10.0MiB/s (10.5MB/s), 2195KiB/s-4186KiB/s (2248kB/s-4287kB/s), io=28.0MiB (29.4MB), run=1820-2799msec 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=186232: Fri Jan 9 21:08:38 2026 read: IOPS=2, BW=9431KiB/s (9657kB/s)(12.0MiB/1303msec) clat (msec): min=385, max=445, avg=411.42, stdev=30.70 lat (msec): min=385, max=445, avg=411.42, stdev=30.70 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 447], 80.00th=[ 447], 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= 7447, max= 8175, per=66.22%, avg=7811.00, stdev=514.77, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=51.69%, ctx=2727, 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=186233: Fri Jan 9 21:08:38 2026 read: IOPS=0, BW=2949KiB/s (3020kB/s)(4096KiB/1389msec) clat (nsec): min=453261k, max=453261k, avg=453261462.00, stdev= 0.00 lat (nsec): min=453265k, max=453265k, avg=453264551.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7460, max= 7460, per=63.25%, avg=7460.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5898KiB/s (6039kB/s)(8192KiB/1389msec); 0 zone resets clat (msec): min=322, max=553, avg=437.96, stdev=162.80 lat (msec): min=323, max=553, avg=438.19, stdev=162.68 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 8175, max= 8175, per=47.53%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.07%, sys=25.22%, ctx=950, 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=186234: Fri Jan 9 21:08:38 2026 write: IOPS=1, BW=6450KiB/s (6605kB/s)(12.0MiB/1905msec); 0 zone resets clat (msec): min=179, max=1468, avg=611.59, stdev=741.82 lat (msec): min=179, max=1468, avg=611.92, stdev=741.93 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 188], 60.00th=[ 188], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8094, max= 8094, per=47.06%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=16.70%, ctx=87, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186235: Fri Jan 9 21:08:38 2026 write: IOPS=1, BW=6974KiB/s (7141kB/s)(12.0MiB/1762msec); 0 zone resets clat (msec): min=98, max=1299, avg=583.11, stdev=633.40 lat (msec): min=98, max=1300, avg=583.41, stdev=633.45 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min=11252, max=11252, per=65.41%, avg=11252.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.11%, sys=13.91%, ctx=73, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=11.5MiB/s (12.1MB/s), 2949KiB/s-9431KiB/s (3020kB/s-9657kB/s), io=16.0MiB (16.8MB), run=1303-1389msec WRITE: bw=16.8MiB/s (17.6MB/s), 5898KiB/s-6974KiB/s (6039kB/s-7141kB/s), io=32.0MiB (33.6MB), run=1389-1905msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186236: Fri Jan 9 21:08:38 2026 read: IOPS=2, BW=9593KiB/s (9823kB/s)(12.0MiB/1281msec) clat (msec): min=389, max=468, avg=420.32, stdev=41.96 lat (msec): min=389, max=468, avg=420.32, stdev=41.96 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 5542, max= 8192, per=75.16%, avg=6867.00, stdev=1873.83, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=20.39%, ctx=74, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186237: Fri Jan 9 21:08:38 2026 read: IOPS=0, BW=2284KiB/s (2339kB/s)(4096KiB/1793msec) clat (nsec): min=1250.2M, max=1250.2M, avg=1250188996.00, stdev= 0.00 lat (nsec): min=1250.2M, max=1250.2M, avg=1250189863.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8192, max= 8192, per=89.66%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4569KiB/s (4679kB/s)(8192KiB/1793msec); 0 zone resets clat (msec): min=259, max=261, avg=260.24, stdev= 1.68 lat (msec): min=259, max=261, avg=260.56, stdev= 1.58 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 262], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 262], 95.00th=[ 262], | 99.00th=[ 262], 99.50th=[ 262], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 8192, max= 8192, per=44.83%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.06%, sys=14.68%, ctx=61, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186238: Fri Jan 9 21:08:38 2026 write: IOPS=1, BW=7123KiB/s (7294kB/s)(12.0MiB/1725msec); 0 zone resets clat (msec): min=288, max=914, avg=569.49, stdev=318.18 lat (msec): min=288, max=915, avg=569.77, stdev=318.18 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8192, max= 8192, per=44.83%, 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%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=15.78%, ctx=53, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=186239: Fri Jan 9 21:08:38 2026 write: IOPS=1, BW=7474KiB/s (7654kB/s)(12.0MiB/1644msec); 0 zone resets clat (msec): min=142, max=1264, avg=542.55, stdev=626.27 lat (msec): min=142, max=1264, avg=542.84, stdev=626.25 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 222], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min=15814, max=15814, per=86.53%, avg=15814.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=14.61%, ctx=109, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=9138KiB/s (9357kB/s), 2284KiB/s-9593KiB/s (2339kB/s-9823kB/s), io=16.0MiB (16.8MB), run=1281-1793msec WRITE: bw=17.8MiB/s (18.7MB/s), 4569KiB/s-7474KiB/s (4679kB/s-7654kB/s), io=32.0MiB (33.6MB), run=1644-1793msec