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authorRob Kendrick <rjek@netsurf-browser.org>2008-07-07 14:05:29 +0000
committerRob Kendrick <rjek@netsurf-browser.org>2008-07-07 14:05:29 +0000
commite7c5e16b9b4f75da948f6d27e8de19d7a149548e (patch)
treea70c6cdc790e2dc881f0f5c09f88ff9eab3a9206 /desktop/netsurf.c
parent192faa217735d0ab06aeed02a01558f5c95aef72 (diff)
downloadnetsurf-e7c5e16b9b4f75da948f6d27e8de19d7a149548e.tar.gz
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Performance improvements: rather than calling content_clean() every poll, we now call it no more frequently than once every 5 seconds. Additionally, we cache the result of talloc_total_size() in content_clean() rather than calculating it twice. On large documents, this function took 25% of CPU time. This makes the fetching/rendering/scrolling/redrawing of large documents over twice as fast.
svn path=/trunk/netsurf/; revision=4527
Diffstat (limited to 'desktop/netsurf.c')
-rw-r--r--desktop/netsurf.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/desktop/netsurf.c b/desktop/netsurf.c
index cc823d4e9..822f81a77 100644
--- a/desktop/netsurf.c
+++ b/desktop/netsurf.c
@@ -121,7 +121,16 @@ void netsurf_init(int argc, char** argv)
void netsurf_poll(void)
{
- content_clean();
+ static unsigned int last_clean = 0;
+ unsigned int current_time = wallclock();
+
+ /* avoid calling content_clean() more often than once every 5
+ * seconds.
+ */
+ if (last_clean + 500 < current_time) {
+ last_clean = current_time;
+ content_clean();
+ }
gui_poll(fetch_active);
fetch_poll();
}