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qemu-android / qemu-android / a0f426109e17d579c2712f5b96a50215e6cc06a4
commita0f426109e17d579c2712f5b96a50215e6cc06a4[log] [tgz]
authorAvi Kivity <avi@redhat.com>Tue Jan 03 15:32:57 2012 +0200
committerAnthony Liguori <aliguori@us.ibm.com>Thu Jan 12 10:03:28 2012 -0600
tree772b9cbe1226cce709b5ae86b0e4466e589ca678
parent19bf7c87081835449d5683ecb0858255bf5a0546 [diff]
vga: optimize ppm_save() divisions

ppm_save() spends upwards of 50% of its time doing divisions. Replace them
with shifts.

Reviewed-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1 file changed
tree: 772b9cbe1226cce709b5ae86b0e4466e589ca678
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. libcacard/
  12. linux-headers/
  13. linux-user/
  14. net/
  15. pc-bios/
  16. qapi/
  17. qga/
  18. QMP/
  19. roms/
  20. scripts/
  21. slirp/
  22. sysconfigs/
  23. target-alpha/
  24. target-arm/
  25. target-cris/
  26. target-i386/
  27. target-lm32/
  28. target-m68k/
  29. target-microblaze/
  30. target-mips/
  31. target-ppc/
  32. target-s390x/
  33. target-sh4/
  34. target-sparc/
  35. target-unicore32/
  36. target-xtensa/
  37. tcg/
  38. tests/
  39. trace/
  40. ui/
  41. .gitignore
  42. .gitmodules
  43. .mailmap
  44. a.out.h
  45. acl.c
  46. acl.h
  47. aes.c
  48. aes.h
  49. aio.c
  50. alpha-dis.c
  51. alpha.ld
  52. arch_init.c
  53. arch_init.h
  54. arm-dis.c
  55. arm-semi.c
  56. arm.ld
  57. async.c
  58. balloon.c
  59. balloon.h
  60. bitmap.c
  61. bitmap.h
  62. bitops.c
  63. bitops.h
  64. block-migration.c
  65. block-migration.h
  66. block.c
  67. block.h
  68. block_int.h
  69. blockdev.c
  70. blockdev.h
  71. bswap.h
  72. bt-host.c
  73. bt-host.h
  74. bt-vhci.c
  75. buffered_file.c
  76. buffered_file.h
  77. cache-utils.c
  78. cache-utils.h
  79. Changelog
  80. check-qdict.c
  81. check-qfloat.c
  82. check-qint.c
  83. check-qjson.c
  84. check-qlist.c
  85. check-qstring.c
  86. cmd.c
  87. cmd.h
  88. CODING_STYLE
  89. compatfd.c
  90. compatfd.h
  91. compiler.h
  92. config.h
  93. configure
  94. console.c
  95. console.h
  96. COPYING
  97. COPYING.LIB
  98. coroutine-gthread.c
  99. coroutine-ucontext.c
  100. coroutine-win32.c
  101. cpu-all.h
  102. cpu-common.h
  103. cpu-defs.h
  104. cpu-exec.c
  105. cpus.c
  106. cpus.h
  107. cris-dis.c
  108. cursor.c
  109. cursor_hidden.xpm
  110. cursor_left_ptr.xpm
  111. cutils.c
  112. def-helper.h
  113. device_tree.c
  114. device_tree.h
  115. dis-asm.h
  116. disas.c
  117. disas.h
  118. dma-helpers.c
  119. dma.h
  120. dyngen-exec.h
  121. elf.h
  122. envlist.c
  123. envlist.h
  124. error.c
  125. error.h
  126. error_int.h
  127. event_notifier.c
  128. event_notifier.h
  129. exec-all.h
  130. exec-memory.h
  131. exec-obsolete.h
  132. exec.c
  133. gdbstub.c
  134. gdbstub.h
  135. gen-icount.h
  136. HACKING
  137. hmp-commands.hx
  138. hmp.c
  139. hmp.h
  140. host-utils.c
  141. host-utils.h
  142. hppa-dis.c
  143. hppa.ld
  144. i386-dis.c
  145. i386.ld
  146. ia64-dis.c
  147. ia64.ld
  148. input.c
  149. int128.h
  150. iohandler.c
  151. ioport-user.c
  152. ioport.c
  153. ioport.h
  154. iorange.h
  155. iov.c
  156. iov.h
  157. json-lexer.c
  158. json-lexer.h
  159. json-parser.c
  160. json-parser.h
  161. json-streamer.c
  162. json-streamer.h
  163. kvm-all.c
  164. kvm-stub.c
  165. kvm.h
  166. libfdt_env.h
  167. LICENSE
  168. linux-aio.c
  169. m68k-dis.c
  170. m68k-semi.c
  171. m68k.ld
  172. main-loop.c
  173. main-loop.h
  174. MAINTAINERS
  175. Makefile
  176. Makefile.dis
  177. Makefile.hw
  178. Makefile.objs
  179. Makefile.target
  180. Makefile.user
  181. memory.c
  182. memory.h
  183. microblaze-dis.c
  184. migration-exec.c
  185. migration-fd.c
  186. migration-tcp.c
  187. migration-unix.c
  188. migration.c
  189. migration.h
  190. mips-dis.c
  191. mips.ld
  192. module.c
  193. module.h
  194. monitor.c
  195. monitor.h
  196. nbd.c
  197. nbd.h
  198. net.c
  199. net.h
  200. notify.c
  201. notify.h
  202. os-posix.c
  203. os-win32.c
  204. osdep.c
  205. osdep.h
  206. oslib-posix.c
  207. oslib-win32.c
  208. path.c
  209. pci-ids.txt
  210. pflib.c
  211. pflib.h
  212. poison.h
  213. posix-aio-compat.c
  214. ppc-dis.c
  215. ppc.ld
  216. ppc64.ld
  217. qapi-schema-guest.json
  218. qapi-schema-test.json
  219. qapi-schema.json
  220. qbool.c
  221. qbool.h
  222. qdict-test-data.txt
  223. qdict.c
  224. qdict.h
  225. qemu-aio.h
  226. qemu-barrier.h
  227. qemu-char.c
  228. qemu-char.h
  229. qemu-common.h
  230. qemu-config.c
  231. qemu-config.h
  232. qemu-coroutine-int.h
  233. qemu-coroutine-io.c
  234. qemu-coroutine-lock.c
  235. qemu-coroutine.c
  236. qemu-coroutine.h
  237. qemu-doc.texi
  238. qemu-error.c
  239. qemu-error.h
  240. qemu-ga.c
  241. qemu-img-cmds.hx
  242. qemu-img.c
  243. qemu-img.texi
  244. qemu-io.c
  245. qemu-lock.h
  246. qemu-log.h
  247. qemu-nbd.c
  248. qemu-nbd.texi
  249. qemu-objects.h
  250. qemu-option.c
  251. qemu-option.h
  252. qemu-options-wrapper.h
  253. qemu-options.h
  254. qemu-options.hx
  255. qemu-os-posix.h
  256. qemu-os-win32.h
  257. qemu-progress.c
  258. qemu-queue.h
  259. qemu-sockets.c
  260. qemu-tech.texi
  261. qemu-thread-posix.c
  262. qemu-thread-posix.h
  263. qemu-thread-win32.c
  264. qemu-thread-win32.h
  265. qemu-thread.h
  266. qemu-timer-common.c
  267. qemu-timer.c
  268. qemu-timer.h
  269. qemu-tls.h
  270. qemu-tool.c
  271. qemu-x509.h
  272. qemu-xattr.h
  273. qemu.sasl
  274. qemu_socket.h
  275. qerror.c
  276. qerror.h
  277. qfloat.c
  278. qfloat.h
  279. qint.c
  280. qint.h
  281. qjson.c
  282. qjson.h
  283. qlist.c
  284. qlist.h
  285. qmp-commands.hx
  286. qmp.c
  287. qobject.h
  288. qstring.c
  289. qstring.h
  290. range.h
  291. readline.c
  292. readline.h
  293. README
  294. rules.mak
  295. s390-dis.c
  296. s390.ld
  297. savevm.c
  298. sh4-dis.c
  299. softmmu-semi.h
  300. softmmu_defs.h
  301. softmmu_exec.h
  302. softmmu_header.h
  303. softmmu_template.h
  304. sparc-dis.c
  305. sparc.ld
  306. sparc64.ld
  307. spice-qemu-char.c
  308. sysemu.h
  309. targphys.h
  310. tcg-runtime.c
  311. tci-dis.c
  312. tci.c
  313. test-coroutine.c
  314. test-qmp-commands.c
  315. test-qmp-input-visitor.c
  316. test-qmp-output-visitor.c
  317. thunk.c
  318. thunk.h
  319. TODO
  320. trace-events
  321. translate-all.c
  322. uboot_image.h
  323. usb-bsd.c
  324. usb-linux.c
  325. usb-redir.c
  326. usb-stub.c
  327. user-exec.c
  328. VERSION
  329. version.rc
  330. vgafont.h
  331. vl.c
  332. x86_64.ld
  333. xen-all.c
  334. xen-mapcache.c
  335. xen-mapcache.h
  336. xen-stub.c
  337. xtensa-semi.c