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qemu / qemu / 202fc01b05572ecb258fdf4c5bd56cf6de8140c7
commit202fc01b05572ecb258fdf4c5bd56cf6de8140c7[log] [tgz]
authorAlexey Kardashevskiy <aik@ozlabs.ru>Thu Sep 21 18:51:09 2017 +1000
committerPaolo Bonzini <pbonzini@redhat.com>Fri Sep 22 01:06:51 2017 +0200
treea4e8c4a88e07754d9f3541e67ca3d6f666ed556b
parentb516572f31c0ea0937cd9d11d9bd72dd83809886 [diff]
memory: Create FlatView directly

This avoids usual memory_region_transaction_commit() which rebuilds
all FVs.

On POWER8 with 255 CPUs, 255 virtio-net, 40 PCI bridges guest this brings
down the boot time from 25s to 20s and reduces the amount of temporary FVs
allocated during machine constructon (~800000 -> ~640000) and amount of
temporary dispatch trees (~370000 -> ~300000), the total memory footprint
goes down (18G -> 17G).

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-18-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed
tree: a4e8c4a88e07754d9f3541e67ca3d6f666ed556b
  1. accel/
  2. audio/
  3. backends/
  4. block/
  5. bsd-user/
  6. chardev/
  7. contrib/
  8. crypto/
  9. default-configs/
  10. disas/
  11. docs/
  12. fpu/
  13. fsdev/
  14. gdb-xml/
  15. hw/
  16. include/
  17. io/
  18. libdecnumber/
  19. linux-headers/
  20. linux-user/
  21. migration/
  22. nbd/
  23. net/
  24. pc-bios/
  25. po/
  26. qapi/
  27. qga/
  28. qobject/
  29. qom/
  30. replay/
  31. roms/
  32. scripts/
  33. scsi/
  34. slirp/
  35. stubs/
  36. target/
  37. tcg/
  38. tests/
  39. trace/
  40. ui/
  41. util/
  42. dtc
  43. .dir-locals.el
  44. .editorconfig
  45. .exrc
  46. .gdbinit
  47. .gitignore
  48. .gitmodules
  49. .mailmap
  50. .shippable.yml
  51. .travis.yml
  52. arch_init.c
  53. balloon.c
  54. block.c
  55. blockdev-nbd.c
  56. blockdev.c
  57. blockjob.c
  58. bootdevice.c
  59. bt-host.c
  60. bt-vhci.c
  61. Changelog
  62. CODING_STYLE
  63. configure
  64. COPYING
  65. COPYING.LIB
  66. COPYING.PYTHON
  67. cpus-common.c
  68. cpus.c
  69. device-hotplug.c
  70. device_tree.c
  71. disas.c
  72. dma-helpers.c
  73. dump.c
  74. exec.c
  75. gdbstub.c
  76. HACKING
  77. hmp-commands-info.hx
  78. hmp-commands.hx
  79. hmp.c
  80. hmp.h
  81. ioport.c
  82. iothread.c
  83. LICENSE
  84. MAINTAINERS
  85. Makefile
  86. Makefile.objs
  87. Makefile.target
  88. memory.c
  89. memory_ldst.inc.c
  90. memory_mapping.c
  91. module-common.c
  92. monitor.c
  93. numa.c
  94. os-posix.c
  95. os-win32.c
  96. qapi-schema.json
  97. qdev-monitor.c
  98. qdict-test-data.txt
  99. qemu-bridge-helper.c
  100. qemu-doc.texi
  101. qemu-ga.texi
  102. qemu-img-cmds.hx
  103. qemu-img.c
  104. qemu-img.texi
  105. qemu-io-cmds.c
  106. qemu-io.c
  107. qemu-nbd.c
  108. qemu-nbd.texi
  109. qemu-option-trace.texi
  110. qemu-options-wrapper.h
  111. qemu-options.h
  112. qemu-options.hx
  113. qemu-seccomp.c
  114. qemu-tech.texi
  115. qemu.nsi
  116. qemu.sasl
  117. qmp.c
  118. qtest.c
  119. README
  120. replication.c
  121. replication.h
  122. rules.mak
  123. thunk.c
  124. tpm.c
  125. trace-events
  126. VERSION
  127. version.rc
  128. vl.c