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Remove parallel display list construction

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Parallel display list construction hasn't been shown to give any
performance gains. It is also incompatible with the current flat display
list implementation. Once flat display lists have landed, we can explore
possible benefits of parallel construction once again.
This commit is contained in:
Martin Robinson 2016-02-19 14:52:56 -08:00
parent ff20a2d3dc
commit 630a9d4255
3 changed files with 3 additions and 80 deletions
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9
components/util/opts.rs
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@ -169,9 +169,6 @@ pub struct Opts {
/// Whether Style Sharing Cache is used
pub disable_share_style_cache: bool,
/// Whether to run absolute position calculation and display list construction in parallel.
pub parallel_display_list_building: bool,
/// Translate mouse input into touch events.
pub convert_mouse_to_touch: bool,
@ -263,9 +260,6 @@ pub struct DebugOptions {
/// Disable the style sharing cache.
pub disable_share_style_cache: bool,
/// Build display lists in parallel.
pub parallel_display_list_building: bool,
/// Translate mouse input into touch events.
pub convert_mouse_to_touch: bool,
@ -316,7 +310,6 @@ impl DebugOptions {
"trace-layout" => debug_options.trace_layout = true,
"validate-display-list-geometry" => debug_options.validate_display_list_geometry = true,
"disable-share-style-cache" => debug_options.disable_share_style_cache = true,
"parallel-display-list-building" => debug_options.parallel_display_list_building = true,
"convert-mouse-to-touch" => debug_options.convert_mouse_to_touch = true,
"replace-surrogates" => debug_options.replace_surrogates = true,
"gc-profile" => debug_options.gc_profile = true,
@ -497,7 +490,6 @@ pub fn default_opts() -> Opts {
profile_script_events: false,
profile_heartbeats: false,
disable_share_style_cache: false,
parallel_display_list_building: false,
convert_mouse_to_touch: false,
exit_after_load: false,
no_native_titlebar: false,
@ -737,7 +729,6 @@ pub fn from_cmdline_args(args: &[String]) -> ArgumentParsingResult {
relayout_event: debug_options.relayout_event,
validate_display_list_geometry: debug_options.validate_display_list_geometry,
disable_share_style_cache: debug_options.disable_share_style_cache,
parallel_display_list_building: debug_options.parallel_display_list_building,
convert_mouse_to_touch: debug_options.convert_mouse_to_touch,
exit_after_load: opt_match.opt_present("x"),
no_native_titlebar: opt_match.opt_present("b"),