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  1. LVM LV:
  2.  
  3.  
  4.  
  5. Sequential throughput
  6. root@pve01:~# fio --name=host-nosync-seq --filename=/dev/nvme_prd/testlv --rw=readwrite --bs=1M --size=4G --numjobs=1 --iodepth=64 --runtime=60 --time_based --direct=1 --fsync=0
  7. host-nosync-seq: (g=0): rw=rw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=64
  8. fio-3.33
  9. Starting 1 process
  10. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  11. Jobs: 1 (f=1): [M(1)][100.0%][r=235MiB/s,w=282MiB/s][r=235,w=282 IOPS][eta 00m:00s]
  12. host-nosync-seq: (groupid=0, jobs=1): err= 0: pid=872265: Wed Oct 22 14:51:39 2025
  13. read: IOPS=271, BW=272MiB/s (285MB/s)(15.9GiB/60001msec)
  14. clat (usec): min=1156, max=273766, avg=1594.02, stdev=3404.96
  15. lat (usec): min=1156, max=273767, avg=1594.40, stdev=3404.96
  16. clat percentiles (usec):
  17. | 1.00th=[ 1205], 5.00th=[ 1237], 10.00th=[ 1254], 20.00th=[ 1270],
  18. | 30.00th=[ 1303], 40.00th=[ 1336], 50.00th=[ 1369], 60.00th=[ 1647],
  19. | 70.00th=[ 1713], 80.00th=[ 1745], 90.00th=[ 1795], 95.00th=[ 1876],
  20. | 99.00th=[ 2999], 99.50th=[ 4293], 99.90th=[ 10683], 99.95th=[ 17695],
  21. | 99.99th=[274727]
  22. bw ( KiB/s): min=88064, max=382976, per=100.00%, avg=278579.63, stdev=40081.45, samples=119
  23. iops : min= 86, max= 374, avg=272.05, stdev=39.14, samples=119
  24. write: IOPS=271, BW=271MiB/s (285MB/s)(15.9GiB/60001msec); 0 zone resets
  25. clat (usec): min=1736, max=212606, avg=2023.86, stdev=1703.98
  26. lat (usec): min=1769, max=212632, avg=2082.06, stdev=1704.21
  27. clat percentiles (usec):
  28. | 1.00th=[ 1778], 5.00th=[ 1811], 10.00th=[ 1827], 20.00th=[ 1860],
  29. | 30.00th=[ 1893], 40.00th=[ 1926], 50.00th=[ 1958], 60.00th=[ 1991],
  30. | 70.00th=[ 2008], 80.00th=[ 2057], 90.00th=[ 2114], 95.00th=[ 2245],
  31. | 99.00th=[ 3490], 99.50th=[ 4686], 99.90th=[ 7111], 99.95th=[10945],
  32. | 99.99th=[16581]
  33. bw ( KiB/s): min=106496, max=337920, per=100.00%, avg=278028.91, stdev=36471.37, samples=119
  34. iops : min= 104, max= 330, avg=271.51, stdev=35.62, samples=119
  35. lat (msec) : 2=80.74%, 4=18.59%, 10=0.58%, 20=0.06%, 100=0.01%
  36. lat (msec) : 250=0.01%, 500=0.01%
  37. cpu : usr=2.04%, sys=4.78%, ctx=32601, majf=0, minf=15
  38. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  39. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  40. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  41. issued rwts: total=16291,16290,0,0 short=0,0,0,0 dropped=0,0,0,0
  42. latency : target=0, window=0, percentile=100.00%, depth=64
  43.  
  44. Run status group 0 (all jobs):
  45. READ: bw=272MiB/s (285MB/s), 272MiB/s-272MiB/s (285MB/s-285MB/s), io=15.9GiB (17.1GB), run=60001-60001msec
  46. WRITE: bw=271MiB/s (285MB/s), 271MiB/s-271MiB/s (285MB/s-285MB/s), io=15.9GiB (17.1GB), run=60001-60001msec
  47.  
  48.  
  49.  
  50.  
  51. Random I/O
  52. root@pve01:~# fio --name=host-nosync-rand --filename=/dev/nvme_prd/testlv --rw=randrw --bs=4k --size=4G --numjobs=4 --iodepth=64 --runtime=60 --time_based --direct=1 --fsync=0
  53. host-nosync-rand: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=64
  54. ...
  55. fio-3.33
  56. Starting 4 processes
  57. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  58. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  59. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  60. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  61. Jobs: 4 (f=4): [m(4)][100.0%][r=52.2MiB/s,w=51.7MiB/s][r=13.4k,w=13.2k IOPS][eta 00m:00s]
  62. host-nosync-rand: (groupid=0, jobs=1): err= 0: pid=874362: Wed Oct 22 14:53:00 2025
  63. read: IOPS=3165, BW=12.4MiB/s (13.0MB/s)(742MiB/60001msec)
  64. clat (usec): min=61, max=8077, avg=126.17, stdev=82.55
  65. lat (usec): min=61, max=8077, avg=126.36, stdev=82.56
  66. clat percentiles (usec):
  67. | 1.00th=[ 78], 5.00th=[ 86], 10.00th=[ 91], 20.00th=[ 99],
  68. | 30.00th=[ 108], 40.00th=[ 115], 50.00th=[ 121], 60.00th=[ 127],
  69. | 70.00th=[ 135], 80.00th=[ 145], 90.00th=[ 159], 95.00th=[ 176],
  70. | 99.00th=[ 225], 99.50th=[ 269], 99.90th=[ 766], 99.95th=[ 1549],
  71. | 99.99th=[ 3982]
  72. bw ( KiB/s): min= 5056, max=14392, per=25.06%, avg=12661.04, stdev=944.78, samples=119
  73. iops : min= 1264, max= 3598, avg=3165.26, stdev=236.20, samples=119
  74. write: IOPS=3159, BW=12.3MiB/s (12.9MB/s)(740MiB/60001msec); 0 zone resets
  75. clat (usec): min=99, max=13206, avg=186.55, stdev=127.70
  76. lat (usec): min=99, max=13206, avg=186.83, stdev=127.71
  77. clat percentiles (usec):
  78. | 1.00th=[ 128], 5.00th=[ 139], 10.00th=[ 145], 20.00th=[ 155],
  79. | 30.00th=[ 163], 40.00th=[ 172], 50.00th=[ 178], 60.00th=[ 186],
  80. | 70.00th=[ 192], 80.00th=[ 202], 90.00th=[ 221], 95.00th=[ 239],
  81. | 99.00th=[ 326], 99.50th=[ 506], 99.90th=[ 1827], 99.95th=[ 3064],
  82. | 99.99th=[ 4948]
  83. bw ( KiB/s): min= 4984, max=14288, per=24.97%, avg=12643.31, stdev=967.71, samples=119
  84. iops : min= 1246, max= 3572, avg=3160.82, stdev=241.93, samples=119
  85. lat (usec) : 100=10.51%, 250=87.54%, 500=1.60%, 750=0.15%, 1000=0.05%
  86. lat (msec) : 2=0.08%, 4=0.05%, 10=0.01%, 20=0.01%
  87. cpu : usr=2.07%, sys=7.08%, ctx=379556, majf=0, minf=21
  88. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  89. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  90. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  91. issued rwts: total=189939,189563,0,0 short=0,0,0,0 dropped=0,0,0,0
  92. latency : target=0, window=0, percentile=100.00%, depth=64
  93. host-nosync-rand: (groupid=0, jobs=1): err= 0: pid=874363: Wed Oct 22 14:53:00 2025
  94. read: IOPS=3117, BW=12.2MiB/s (12.8MB/s)(731MiB/60001msec)
  95. clat (usec): min=60, max=9373, avg=128.90, stdev=83.33
  96. lat (usec): min=60, max=9374, avg=129.10, stdev=83.34
  97. clat percentiles (usec):
  98. | 1.00th=[ 80], 5.00th=[ 88], 10.00th=[ 94], 20.00th=[ 102],
  99. | 30.00th=[ 110], 40.00th=[ 116], 50.00th=[ 122], 60.00th=[ 129],
  100. | 70.00th=[ 137], 80.00th=[ 149], 90.00th=[ 165], 95.00th=[ 180],
  101. | 99.00th=[ 229], 99.50th=[ 273], 99.90th=[ 766], 99.95th=[ 1565],
  102. | 99.99th=[ 4015]
  103. bw ( KiB/s): min= 4880, max=13816, per=24.68%, avg=12471.19, stdev=1002.66, samples=119
  104. iops : min= 1220, max= 3454, avg=3117.80, stdev=250.67, samples=119
  105. write: IOPS=3131, BW=12.2MiB/s (12.8MB/s)(734MiB/60001msec); 0 zone resets
  106. clat (usec): min=103, max=12637, avg=187.47, stdev=124.64
  107. lat (usec): min=103, max=12637, avg=187.75, stdev=124.65
  108. clat percentiles (usec):
  109. | 1.00th=[ 129], 5.00th=[ 141], 10.00th=[ 147], 20.00th=[ 157],
  110. | 30.00th=[ 163], 40.00th=[ 172], 50.00th=[ 178], 60.00th=[ 186],
  111. | 70.00th=[ 192], 80.00th=[ 202], 90.00th=[ 219], 95.00th=[ 239],
  112. | 99.00th=[ 343], 99.50th=[ 537], 99.90th=[ 1860], 99.95th=[ 3130],
  113. | 99.99th=[ 4752]
  114. bw ( KiB/s): min= 4920, max=13616, per=24.75%, avg=12529.16, stdev=965.03, samples=119
  115. iops : min= 1230, max= 3404, avg=3132.29, stdev=241.26, samples=119
  116. lat (usec) : 100=9.01%, 250=88.98%, 500=1.64%, 750=0.16%, 1000=0.06%
  117. lat (msec) : 2=0.09%, 4=0.05%, 10=0.01%, 20=0.01%
  118. cpu : usr=2.09%, sys=7.16%, ctx=374936, majf=0, minf=20
  119. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  120. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  121. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  122. issued rwts: total=187027,187882,0,0 short=0,0,0,0 dropped=0,0,0,0
  123. latency : target=0, window=0, percentile=100.00%, depth=64
  124. host-nosync-rand: (groupid=0, jobs=1): err= 0: pid=874364: Wed Oct 22 14:53:00 2025
  125. read: IOPS=3193, BW=12.5MiB/s (13.1MB/s)(749MiB/60001msec)
  126. clat (usec): min=57, max=9484, avg=125.14, stdev=80.78
  127. lat (usec): min=57, max=9485, avg=125.32, stdev=80.79
  128. clat percentiles (usec):
  129. | 1.00th=[ 77], 5.00th=[ 85], 10.00th=[ 90], 20.00th=[ 98],
  130. | 30.00th=[ 105], 40.00th=[ 114], 50.00th=[ 120], 60.00th=[ 126],
  131. | 70.00th=[ 135], 80.00th=[ 145], 90.00th=[ 159], 95.00th=[ 176],
  132. | 99.00th=[ 225], 99.50th=[ 269], 99.90th=[ 791], 99.95th=[ 1598],
  133. | 99.99th=[ 3916]
  134. bw ( KiB/s): min= 5000, max=14160, per=25.28%, avg=12774.25, stdev=968.14, samples=119
  135. iops : min= 1250, max= 3540, avg=3193.56, stdev=242.04, samples=119
  136. write: IOPS=3196, BW=12.5MiB/s (13.1MB/s)(749MiB/60001msec); 0 zone resets
  137. clat (usec): min=106, max=7830, avg=184.32, stdev=117.65
  138. lat (usec): min=106, max=7830, avg=184.58, stdev=117.66
  139. clat percentiles (usec):
  140. | 1.00th=[ 126], 5.00th=[ 137], 10.00th=[ 143], 20.00th=[ 153],
  141. | 30.00th=[ 161], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 184],
  142. | 70.00th=[ 190], 80.00th=[ 200], 90.00th=[ 219], 95.00th=[ 237],
  143. | 99.00th=[ 338], 99.50th=[ 519], 99.90th=[ 1729], 99.95th=[ 2737],
  144. | 99.99th=[ 4817]
  145. bw ( KiB/s): min= 5136, max=14184, per=25.25%, avg=12786.23, stdev=929.55, samples=119
  146. iops : min= 1284, max= 3546, avg=3196.55, stdev=232.39, samples=119
  147. lat (usec) : 100=11.55%, 250=86.54%, 500=1.56%, 750=0.16%, 1000=0.06%
  148. lat (msec) : 2=0.09%, 4=0.04%, 10=0.02%
  149. cpu : usr=2.03%, sys=7.03%, ctx=383535, majf=0, minf=138
  150. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  151. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  152. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  153. issued rwts: total=191631,191816,0,0 short=0,0,0,0 dropped=0,0,0,0
  154. latency : target=0, window=0, percentile=100.00%, depth=64
  155. host-nosync-rand: (groupid=0, jobs=1): err= 0: pid=874365: Wed Oct 22 14:53:00 2025
  156. read: IOPS=3155, BW=12.3MiB/s (12.9MB/s)(740MiB/60001msec)
  157. clat (usec): min=55, max=13030, avg=126.50, stdev=88.97
  158. lat (usec): min=55, max=13030, avg=126.70, stdev=88.98
  159. clat percentiles (usec):
  160. | 1.00th=[ 78], 5.00th=[ 86], 10.00th=[ 91], 20.00th=[ 99],
  161. | 30.00th=[ 108], 40.00th=[ 115], 50.00th=[ 121], 60.00th=[ 127],
  162. | 70.00th=[ 135], 80.00th=[ 145], 90.00th=[ 161], 95.00th=[ 178],
  163. | 99.00th=[ 227], 99.50th=[ 269], 99.90th=[ 791], 99.95th=[ 1549],
  164. | 99.99th=[ 3851]
  165. bw ( KiB/s): min= 5216, max=13904, per=24.96%, avg=12614.52, stdev=986.44, samples=119
  166. iops : min= 1304, max= 3476, avg=3153.61, stdev=246.60, samples=119
  167. write: IOPS=3170, BW=12.4MiB/s (13.0MB/s)(743MiB/60001msec); 0 zone resets
  168. clat (usec): min=106, max=9907, avg=185.98, stdev=115.02
  169. lat (usec): min=107, max=9908, avg=186.26, stdev=115.03
  170. clat percentiles (usec):
  171. | 1.00th=[ 128], 5.00th=[ 139], 10.00th=[ 145], 20.00th=[ 155],
  172. | 30.00th=[ 163], 40.00th=[ 172], 50.00th=[ 178], 60.00th=[ 184],
  173. | 70.00th=[ 192], 80.00th=[ 202], 90.00th=[ 219], 95.00th=[ 239],
  174. | 99.00th=[ 330], 99.50th=[ 510], 99.90th=[ 1680], 99.95th=[ 2540],
  175. | 99.99th=[ 4424]
  176. bw ( KiB/s): min= 4856, max=14208, per=25.05%, avg=12683.36, stdev=974.85, samples=119
  177. iops : min= 1214, max= 3552, avg=3170.84, stdev=243.70, samples=119
  178. lat (usec) : 100=10.50%, 250=87.52%, 500=1.64%, 750=0.15%, 1000=0.05%
  179. lat (msec) : 2=0.09%, 4=0.04%, 10=0.01%, 20=0.01%
  180. cpu : usr=1.99%, sys=7.11%, ctx=379614, majf=0, minf=100
  181. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  182. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  183. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  184. issued rwts: total=189348,190205,0,0 short=0,0,0,0 dropped=0,0,0,0
  185. latency : target=0, window=0, percentile=100.00%, depth=64
  186.  
  187. Run status group 0 (all jobs):
  188. READ: bw=49.3MiB/s (51.7MB/s), 12.2MiB/s-12.5MiB/s (12.8MB/s-13.1MB/s), io=2961MiB (3105MB), run=60001-60001msec
  189. WRITE: bw=49.4MiB/s (51.8MB/s), 12.2MiB/s-12.5MiB/s (12.8MB/s-13.1MB/s), io=2967MiB (3111MB), run=60001-60001msec
  190.  
  191.  
  192.  
  193.  
  194. VM:
  195.  
  196. Sequential throughput
  197. root@tools:~ # fio --name=vm-nosync-seq --filename=/tmp/testfile --rw=readwrite --bs=1M --size=4G --numjobs=1 --iodepth=64 --runtime=60 --time_based --direct=1 --fsync=0
  198. vm-nosync-seq: (g=0): rw=rw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=64
  199. fio-3.40
  200. Starting 1 process
  201. vm-nosync-seq: Laying out IO file (1 file / 4096MiB)
  202. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  203. Jobs: 1 (f=1): [M(1)][100.0%][r=361MiB/s,w=352MiB/s][r=361,w=352 IOPS][eta 00m:00s]
  204. vm-nosync-seq: (groupid=0, jobs=1): err= 0: pid=930: Wed Oct 22 15:00:40 2025
  205. read: IOPS=312, BW=312MiB/s (327MB/s)(18.3GiB/60001msec)
  206. clat (usec): min=77, max=68066, avg=608.07, stdev=1753.83
  207. lat (usec): min=77, max=68066, avg=608.45, stdev=1753.85
  208. clat percentiles (usec):
  209. | 1.00th=[ 139], 5.00th=[ 157], 10.00th=[ 172], 20.00th=[ 192],
  210. | 30.00th=[ 215], 40.00th=[ 251], 50.00th=[ 355], 60.00th=[ 408],
  211. | 70.00th=[ 445], 80.00th=[ 502], 90.00th=[ 685], 95.00th=[ 1745],
  212. | 99.00th=[ 6915], 99.50th=[11076], 99.90th=[24773], 99.95th=[30540],
  213. | 99.99th=[58459]
  214. bw ( KiB/s): min=100352, max=585728, per=100.00%, avg=319760.43, stdev=68195.12, samples=119
  215. iops : min= 98, max= 572, avg=312.22, stdev=66.62, samples=119
  216. write: IOPS=312, BW=312MiB/s (328MB/s)(18.3GiB/60001msec); 0 zone resets
  217. clat (usec): min=83, max=57383, avg=2560.58, stdev=1047.17
  218. lat (usec): min=92, max=57410, avg=2587.18, stdev=1049.77
  219. clat percentiles (usec):
  220. | 1.00th=[ 217], 5.00th=[ 848], 10.00th=[ 1549], 20.00th=[ 2180],
  221. | 30.00th=[ 2311], 40.00th=[ 2409], 50.00th=[ 2507], 60.00th=[ 2638],
  222. | 70.00th=[ 2802], 80.00th=[ 3032], 90.00th=[ 3458], 95.00th=[ 3982],
  223. | 99.00th=[ 5145], 99.50th=[ 5735], 99.90th=[ 8979], 99.95th=[11207],
  224. | 99.99th=[33817]
  225. bw ( KiB/s): min=120832, max=632832, per=100.00%, avg=319951.96, stdev=63038.45, samples=119
  226. iops : min= 118, max= 618, avg=312.41, stdev=61.58, samples=119
  227. lat (usec) : 100=0.14%, 250=20.43%, 500=20.43%, 750=6.65%, 1000=1.84%
  228. lat (msec) : 2=5.52%, 4=41.61%, 10=3.05%, 20=0.24%, 50=0.08%
  229. lat (msec) : 100=0.01%
  230. cpu : usr=1.47%, sys=18.32%, ctx=55561, majf=0, minf=0
  231. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  232. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  233. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  234. issued rwts: total=18730,18741,0,0 short=0,0,0,0 dropped=0,0,0,0
  235. latency : target=0, window=0, percentile=100.00%, depth=64
  236.  
  237. Run status group 0 (all jobs):
  238. READ: bw=312MiB/s (327MB/s), 312MiB/s-312MiB/s (327MB/s-327MB/s), io=18.3GiB (19.6GB), run=60001-60001msec
  239. WRITE: bw=312MiB/s (328MB/s), 312MiB/s-312MiB/s (328MB/s-328MB/s), io=18.3GiB (19.7GB), run=60001-60001msec
  240.  
  241.  
  242.  
  243.  
  244. Random I/O
  245. root@tools:~ # fio --name=vm-nosync-rand --filename=/tmp/testfile --rw=randrw --bs=4k --size=4G --numjobs=4 --iodepth=64 --runtime=60 --time_based --direct=1 --fsync=0
  246. vm-nosync-rand: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=64
  247. ...
  248. fio-3.40
  249. Starting 4 processes
  250. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  251. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  252. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  253. note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
  254. Jobs: 4 (f=4): [m(4)][100.0%][r=9488KiB/s,w=9544KiB/s][r=2372,w=2386 IOPS][eta 00m:00s]
  255. vm-nosync-rand: (groupid=0, jobs=1): err= 0: pid=947: Wed Oct 22 15:01:51 2025
  256. read: IOPS=592, BW=2369KiB/s (2426kB/s)(139MiB/60001msec)
  257. clat (usec): min=2, max=91697, avg=611.03, stdev=797.42
  258. lat (usec): min=2, max=91697, avg=611.24, stdev=797.43
  259. clat percentiles (usec):
  260. | 1.00th=[ 5], 5.00th=[ 36], 10.00th=[ 40], 20.00th=[ 47],
  261. | 30.00th=[ 416], 40.00th=[ 482], 50.00th=[ 545], 60.00th=[ 619],
  262. | 70.00th=[ 750], 80.00th=[ 922], 90.00th=[ 1139], 95.00th=[ 1369],
  263. | 99.00th=[ 2671], 99.50th=[ 3654], 99.90th=[ 6587], 99.95th=[ 9110],
  264. | 99.99th=[19792]
  265. bw ( KiB/s): min= 1464, max= 2944, per=25.04%, avg=2368.04, stdev=313.12, samples=119
  266. iops : min= 366, max= 736, avg=592.01, stdev=78.28, samples=119
  267. write: IOPS=592, BW=2369KiB/s (2426kB/s)(139MiB/60001msec); 0 zone resets
  268. clat (usec): min=5, max=27387, avg=1073.13, stdev=725.15
  269. lat (usec): min=5, max=27387, avg=1073.36, stdev=725.16
  270. clat percentiles (usec):
  271. | 1.00th=[ 45], 5.00th=[ 474], 10.00th=[ 545], 20.00th=[ 619],
  272. | 30.00th=[ 676], 40.00th=[ 766], 50.00th=[ 889], 60.00th=[ 1012],
  273. | 70.00th=[ 1172], 80.00th=[ 1450], 90.00th=[ 1909], 95.00th=[ 2343],
  274. | 99.00th=[ 3195], 99.50th=[ 4080], 99.90th=[ 7570], 99.95th=[10945],
  275. | 99.99th=[13566]
  276. bw ( KiB/s): min= 1520, max= 2928, per=24.98%, avg=2369.86, stdev=290.80, samples=119
  277. iops : min= 380, max= 732, avg=592.46, stdev=72.70, samples=119
  278. lat (usec) : 4=0.34%, 10=1.06%, 20=0.08%, 50=10.43%, 100=2.16%
  279. lat (usec) : 250=0.30%, 500=10.63%, 750=29.20%, 1000=17.26%
  280. lat (msec) : 2=23.20%, 4=4.90%, 10=0.39%, 20=0.05%, 50=0.01%
  281. lat (msec) : 100=0.01%
  282. cpu : usr=0.60%, sys=3.69%, ctx=82187, majf=0, minf=0
  283. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  284. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  285. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  286. issued rwts: total=35535,35542,0,0 short=0,0,0,0 dropped=0,0,0,0
  287. latency : target=0, window=0, percentile=100.00%, depth=64
  288. vm-nosync-rand: (groupid=0, jobs=1): err= 0: pid=948: Wed Oct 22 15:01:51 2025
  289. read: IOPS=588, BW=2353KiB/s (2410kB/s)(138MiB/60002msec)
  290. clat (usec): min=2, max=83535, avg=611.16, stdev=754.24
  291. lat (usec): min=2, max=83536, avg=611.37, stdev=754.24
  292. clat percentiles (usec):
  293. | 1.00th=[ 5], 5.00th=[ 36], 10.00th=[ 40], 20.00th=[ 47],
  294. | 30.00th=[ 416], 40.00th=[ 478], 50.00th=[ 545], 60.00th=[ 627],
  295. | 70.00th=[ 750], 80.00th=[ 930], 90.00th=[ 1139], 95.00th=[ 1369],
  296. | 99.00th=[ 2638], 99.50th=[ 3687], 99.90th=[ 5800], 99.95th=[ 8094],
  297. | 99.99th=[15139]
  298. bw ( KiB/s): min= 1360, max= 2992, per=24.87%, avg=2352.61, stdev=324.38, samples=119
  299. iops : min= 340, max= 748, avg=588.14, stdev=81.11, samples=119
  300. write: IOPS=592, BW=2369KiB/s (2426kB/s)(139MiB/60002msec); 0 zone resets
  301. clat (usec): min=4, max=24439, avg=1077.22, stdev=731.90
  302. lat (usec): min=4, max=24439, avg=1077.46, stdev=731.91
  303. clat percentiles (usec):
  304. | 1.00th=[ 44], 5.00th=[ 478], 10.00th=[ 545], 20.00th=[ 619],
  305. | 30.00th=[ 676], 40.00th=[ 766], 50.00th=[ 889], 60.00th=[ 1020],
  306. | 70.00th=[ 1172], 80.00th=[ 1450], 90.00th=[ 1926], 95.00th=[ 2311],
  307. | 99.00th=[ 3228], 99.50th=[ 4178], 99.90th=[ 7308], 99.95th=[10814],
  308. | 99.99th=[16909]
  309. bw ( KiB/s): min= 1544, max= 2848, per=24.97%, avg=2368.41, stdev=282.69, samples=119
  310. iops : min= 386, max= 712, avg=592.10, stdev=70.67, samples=119
  311. lat (usec) : 4=0.32%, 10=1.06%, 20=0.06%, 50=10.45%, 100=2.11%
  312. lat (usec) : 250=0.30%, 500=10.51%, 750=29.26%, 1000=17.16%
  313. lat (msec) : 2=23.42%, 4=4.89%, 10=0.41%, 20=0.05%, 50=0.01%
  314. lat (msec) : 100=0.01%
  315. cpu : usr=0.43%, sys=3.87%, ctx=81813, majf=0, minf=0
  316. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  317. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  318. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  319. issued rwts: total=35301,35533,0,0 short=0,0,0,0 dropped=0,0,0,0
  320. latency : target=0, window=0, percentile=100.00%, depth=64
  321. vm-nosync-rand: (groupid=0, jobs=1): err= 0: pid=949: Wed Oct 22 15:01:51 2025
  322. read: IOPS=593, BW=2373KiB/s (2430kB/s)(139MiB/60002msec)
  323. clat (usec): min=2, max=80575, avg=610.11, stdev=752.60
  324. lat (usec): min=2, max=80575, avg=610.32, stdev=752.61
  325. clat percentiles (usec):
  326. | 1.00th=[ 5], 5.00th=[ 37], 10.00th=[ 40], 20.00th=[ 47],
  327. | 30.00th=[ 412], 40.00th=[ 478], 50.00th=[ 545], 60.00th=[ 619],
  328. | 70.00th=[ 750], 80.00th=[ 922], 90.00th=[ 1123], 95.00th=[ 1369],
  329. | 99.00th=[ 2704], 99.50th=[ 3752], 99.90th=[ 6718], 99.95th=[ 7898],
  330. | 99.99th=[17171]
  331. bw ( KiB/s): min= 1464, max= 3040, per=25.09%, avg=2372.48, stdev=315.56, samples=119
  332. iops : min= 366, max= 760, avg=593.12, stdev=78.89, samples=119
  333. write: IOPS=591, BW=2367KiB/s (2424kB/s)(139MiB/60002msec); 0 zone resets
  334. clat (usec): min=4, max=75862, avg=1074.25, stdev=826.92
  335. lat (usec): min=4, max=75862, avg=1074.48, stdev=826.92
  336. clat percentiles (usec):
  337. | 1.00th=[ 45], 5.00th=[ 478], 10.00th=[ 545], 20.00th=[ 611],
  338. | 30.00th=[ 676], 40.00th=[ 766], 50.00th=[ 889], 60.00th=[ 1020],
  339. | 70.00th=[ 1172], 80.00th=[ 1434], 90.00th=[ 1909], 95.00th=[ 2311],
  340. | 99.00th=[ 3195], 99.50th=[ 4015], 99.90th=[ 7439], 99.95th=[11076],
  341. | 99.99th=[20055]
  342. bw ( KiB/s): min= 1424, max= 3040, per=24.94%, avg=2366.23, stdev=300.80, samples=119
  343. iops : min= 356, max= 760, avg=591.55, stdev=75.20, samples=119
  344. lat (usec) : 4=0.29%, 10=1.09%, 20=0.07%, 50=10.45%, 100=2.09%
  345. lat (usec) : 250=0.29%, 500=10.67%, 750=29.43%, 1000=17.14%
  346. lat (msec) : 2=23.25%, 4=4.76%, 10=0.41%, 20=0.04%, 50=0.01%
  347. lat (msec) : 100=0.01%
  348. cpu : usr=0.52%, sys=3.79%, ctx=81921, majf=0, minf=0
  349. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  350. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  351. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  352. issued rwts: total=35595,35503,0,0 short=0,0,0,0 dropped=0,0,0,0
  353. latency : target=0, window=0, percentile=100.00%, depth=64
  354. vm-nosync-rand: (groupid=0, jobs=1): err= 0: pid=950: Wed Oct 22 15:01:51 2025
  355. read: IOPS=590, BW=2361KiB/s (2417kB/s)(138MiB/60001msec)
  356. clat (usec): min=2, max=35249, avg=606.34, stdev=641.92
  357. lat (usec): min=2, max=35249, avg=606.55, stdev=641.93
  358. clat percentiles (usec):
  359. | 1.00th=[ 5], 5.00th=[ 36], 10.00th=[ 40], 20.00th=[ 47],
  360. | 30.00th=[ 412], 40.00th=[ 482], 50.00th=[ 545], 60.00th=[ 619],
  361. | 70.00th=[ 742], 80.00th=[ 922], 90.00th=[ 1139], 95.00th=[ 1369],
  362. | 99.00th=[ 2606], 99.50th=[ 3654], 99.90th=[ 5866], 99.95th=[ 7504],
  363. | 99.99th=[13042]
  364. bw ( KiB/s): min= 1488, max= 3008, per=24.96%, avg=2360.20, stdev=322.78, samples=119
  365. iops : min= 372, max= 752, avg=590.04, stdev=80.71, samples=119
  366. write: IOPS=595, BW=2380KiB/s (2437kB/s)(139MiB/60001msec); 0 zone resets
  367. clat (usec): min=5, max=67211, avg=1074.85, stdev=791.72
  368. lat (usec): min=5, max=67212, avg=1075.08, stdev=791.73
  369. clat percentiles (usec):
  370. | 1.00th=[ 44], 5.00th=[ 482], 10.00th=[ 545], 20.00th=[ 619],
  371. | 30.00th=[ 685], 40.00th=[ 766], 50.00th=[ 889], 60.00th=[ 1020],
  372. | 70.00th=[ 1172], 80.00th=[ 1450], 90.00th=[ 1926], 95.00th=[ 2311],
  373. | 99.00th=[ 3130], 99.50th=[ 3916], 99.90th=[ 7242], 99.95th=[10945],
  374. | 99.99th=[15139]
  375. bw ( KiB/s): min= 1520, max= 2984, per=25.07%, avg=2378.63, stdev=288.01, samples=119
  376. iops : min= 380, max= 746, avg=594.65, stdev=72.01, samples=119
  377. lat (usec) : 4=0.28%, 10=1.15%, 20=0.06%, 50=10.45%, 100=2.04%
  378. lat (usec) : 250=0.32%, 500=10.42%, 750=29.69%, 1000=16.84%
  379. lat (msec) : 2=23.47%, 4=4.86%, 10=0.39%, 20=0.04%, 50=0.01%
  380. lat (msec) : 100=0.01%
  381. cpu : usr=0.55%, sys=3.75%, ctx=82113, majf=0, minf=0
  382. IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  383. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  384. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  385. issued rwts: total=35411,35703,0,0 short=0,0,0,0 dropped=0,0,0,0
  386. latency : target=0, window=0, percentile=100.00%, depth=64
  387.  
  388. Run status group 0 (all jobs):
  389. READ: bw=9456KiB/s (9683kB/s), 2353KiB/s-2373KiB/s (2410kB/s-2430kB/s), io=554MiB (581MB), run=60001-60002msec
  390. WRITE: bw=9485KiB/s (9713kB/s), 2367KiB/s-2380KiB/s (2424kB/s-2437kB/s), io=556MiB (583MB), run=60001-60002msec
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