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qemu / qemu / 00a3f9c60ab0e5c8fd7bfbc300323f012cdd2fa6
commit00a3f9c60ab0e5c8fd7bfbc300323f012cdd2fa6[log] [tgz]
authorAndrei Gudkov <gudkov.andrei@huawei.com>Thu Apr 27 15:42:57 2023 +0300
committerJuan Quintela <quintela@redhat.com>Mon May 15 10:33:03 2023 +0200
treef4d477975cc4d4797828323f89ae645ac78a1aa1
parent8844bb8d896595ee1d25d21c770e6e6f29803097 [diff]
migration/calc-dirty-rate: replaced CRC32 with xxHash

This significantly reduces overhead of dirty page
rate calculation in sampling mode.
Tested using 32GiB VM on E5-2690 CPU.

With CRC32:
total_pages=8388608 sampled_pages=16384 millis=71

With xxHash:
total_pages=8388608 sampled_pages=16384 millis=14

Signed-off-by: Andrei Gudkov <gudkov.andrei@huawei.com>
Message-Id: <cd115a89fc81d5f2eeb4ea7d57a98b84f794f340.1682598010.git.gudkov.andrei@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2 files changed
tree: f4d477975cc4d4797828323f89ae645ac78a1aa1
  1. .github/
  2. .gitlab/
  3. .gitlab-ci.d/
  4. accel/
  5. audio/
  6. authz/
  7. backends/
  8. block/
  9. bsd-user/
  10. chardev/
  11. common-user/
  12. configs/
  13. contrib/
  14. crypto/
  15. disas/
  16. docs/
  17. dump/
  18. ebpf/
  19. fpu/
  20. fsdev/
  21. gdb-xml/
  22. gdbstub/
  23. hw/
  24. include/
  25. io/
  26. libdecnumber/
  27. linux-headers/
  28. linux-user/
  29. migration/
  30. monitor/
  31. nbd/
  32. net/
  33. pc-bios/
  34. plugins/
  35. po/
  36. python/
  37. qapi/
  38. qga/
  39. qobject/
  40. qom/
  41. replay/
  42. roms/
  43. scripts/
  44. scsi/
  45. semihosting/
  46. softmmu/
  47. stats/
  48. storage-daemon/
  49. stubs/
  50. subprojects/
  51. target/
  52. tcg/
  53. tests/
  54. tools/
  55. trace/
  56. ui/
  57. util/
  58. dtc
  59. meson
  60. .dir-locals.el
  61. .editorconfig
  62. .exrc
  63. .gdbinit
  64. .git-blame-ignore-revs
  65. .gitattributes
  66. .gitignore
  67. .gitlab-ci.yml
  68. .gitmodules
  69. .gitpublish
  70. .mailmap
  71. .patchew.yml
  72. .readthedocs.yml
  73. .travis.yml
  74. block.c
  75. blockdev-nbd.c
  76. blockdev.c
  77. blockjob.c
  78. configure
  79. COPYING
  80. COPYING.LIB
  81. cpu.c
  82. cpus-common.c
  83. event-loop-base.c
  84. gitdm.config
  85. hmp-commands-info.hx
  86. hmp-commands.hx
  87. iothread.c
  88. job-qmp.c
  89. job.c
  90. Kconfig
  91. Kconfig.host
  92. LICENSE
  93. MAINTAINERS
  94. Makefile
  95. memory_ldst.c.inc
  96. meson.build
  97. meson_options.txt
  98. module-common.c
  99. os-posix.c
  100. os-win32.c
  101. page-vary-common.c
  102. page-vary.c
  103. qemu-bridge-helper.c
  104. qemu-edid.c
  105. qemu-img-cmds.hx
  106. qemu-img.c
  107. qemu-io-cmds.c
  108. qemu-io.c
  109. qemu-keymap.c
  110. qemu-nbd.c
  111. qemu-options.hx
  112. qemu.nsi
  113. qemu.sasl
  114. README.rst
  115. replication.c
  116. trace-events
  117. VERSION
  118. version.rc