Re: [webkit-dev] WTF::fastMalloc

2013-10-02 Thread Geoffrey Garen
> However, given the constraints, what's the problem with the mmap > strategy? Sure, you have more page tables on the kernel side, but > mmap'd memory that is never touched is never resident in a process. I > verified this a few months back when troubleshooting some memory-related > issues. Okee

Re: [webkit-dev] AX: Implement CSS -webkit-alt property (text alternative for generated content pseudo-elements ::before and ::after)

2013-10-02 Thread Christian Biesinger
On Tue, Oct 1, 2013 at 8:26 PM, Ryosuke Niwa wrote: > On Tue, Oct 1, 2013 at 4:53 PM, James Craig wrote: >> >> Follow-up question: Since this hasn’t made it into the CSS4 spec yet, >> should we temporarily use “-webkit-alt” for the property name? I know there >> has been a push to move away from

Re: [webkit-dev] WTF::fastMalloc

2013-10-02 Thread Maciej Stachowiak
On Oct 2, 2013, at 2:41 AM, Andy Wingo wrote: > >> We need somebody to resolve these issues, otherwise our memory >> footprint will be unacceptably high, and/or our VM operations will be >> unacceptably slow. > > There is no memory footprint problem caused by mmap here -- to my > knowledge. I

Re: [webkit-dev] PSA: WebKit2 and DrawingAreaImpl

2013-10-02 Thread Alejandro Garcia Castro
On Wed, Oct 02, 2013 at 09:49:23AM -0700, Anders Carlsson wrote: > > On Oct 1, 2013, at 11:29 PM, Sergio Villar Senin wrote: > > > On 02/10/13 03:19, Anders Carlsson wrote: > >> Hello, > >> > >> I just wanted to let everyone know that we (Apple) are moving away from > >> DrawingAreaImpl and alw

Re: [webkit-dev] WTF::fastMalloc

2013-10-02 Thread Maciej Stachowiak
On Oct 2, 2013, at 1:17 AM, Konstantin Tokarev wrote: > > 02.10.2013, 03:18, "Zoltan Horvath" : >> On Tue, Oct 1, 2013 at 3:52 PM, Geoffrey Garen wrote: So are you proposing to use the system allocator on Windows? >>> >>> I’m proposing a two step process: >>> >>> (1) Use the system allo

Re: [webkit-dev] PSA: WebKit2 and DrawingAreaImpl

2013-10-02 Thread Sergio Villar Senin
On 02/10/13 18:49, Anders Carlsson wrote: > > On Oct 1, 2013, at 11:29 PM, Sergio Villar Senin wrote: > >> On 02/10/13 03:19, Anders Carlsson wrote: >>> Hello, >>> >>> I just wanted to let everyone know that we (Apple) are moving away from >>> DrawingAreaImpl and always using our tiled drawing

Re: [webkit-dev] PSA: WebKit2 and DrawingAreaImpl

2013-10-02 Thread Brent Fulgham
Hi Anders, On Oct 1, 2013, at 6:19 PM, Anders Carlsson wrote: > I just wanted to let everyone know that we (Apple) are moving away from > DrawingAreaImpl and always using our tiled drawing area. Longer term we’d > like to remove DrawingAreaImpl completely since it was designed back when we >

Re: [webkit-dev] PSA: WebKit2 and DrawingAreaImpl

2013-10-02 Thread Anders Carlsson
On Oct 1, 2013, at 11:29 PM, Sergio Villar Senin wrote: > On 02/10/13 03:19, Anders Carlsson wrote: >> Hello, >> >> I just wanted to let everyone know that we (Apple) are moving away from >> DrawingAreaImpl and always using our tiled drawing area. Longer term we’d >> like to remove DrawingAre

Re: [webkit-dev] WTF::fastMalloc

2013-10-02 Thread Darin Adler
On Oct 2, 2013, at 1:17 AM, Konstantin Tokarev wrote: > Out of curiosity, what's wrong with linking whole application using WebKit > against tcmalloc or some other malloc implementation? There are a lot of things wrong with that. Most of them depend on the platform. On Mac, for example, WebKit

Re: [webkit-dev] Changes in QtWebKit development

2013-10-02 Thread Allan Sandfeld Jensen
On Tuesday 01 October 2013, Oliver Hunt wrote: > > having helped as far as we could. > > But why should webkit have _any_ burden when Qt itself cares so little > about QtWebKit that it is happy to have qtisms that were ostensibly > necessary for performance, etc removed? > So if we try minimize t

Re: [webkit-dev] WTF::fastMalloc

2013-10-02 Thread Andy Wingo
Hi Geoffrey, On Wed 02 Oct 2013 00:11, Geoffrey Garen writes: > There are two problems with the current OSAllocator POSIX implementation: > > (1) It uses mmap, which doesn’t support aligned allocation. To get > aligned allocation, POSIX double-allocates all virtual memory. That is > 2X too much.

Re: [webkit-dev] Reference count leak with InBandTextTracks?

2013-10-02 Thread Benjamin Dupont (bedupont)
Thanks Jer and Brendan for your explanations. De : Jer Noble [mailto:jer.no...@apple.com] Envoyé : mardi 1 octobre 2013 17:47 À : Benjamin Dupont (bedupont) Cc : webkit-dev@lists.webkit.org Objet : Re: [webkit-dev] Reference count leak with InBandTextTracks? On Oct 1, 2013, at 2:48 AM, Benjamin

Re: [webkit-dev] WTF::fastMalloc

2013-10-02 Thread Konstantin Tokarev
02.10.2013, 03:18, "Zoltan Horvath" : > On Tue, Oct 1, 2013 at 3:52 PM, Geoffrey Garen wrote: >>> So are you proposing to use the system allocator on Windows? >> >> I’m proposing a two step process: >> >> (1) Use the system allocator on Windows (and GTK). >> (2) If a port maintainer cares to opti

Re: [webkit-dev] PSA: WebKit2 and DrawingAreaImpl

2013-10-02 Thread Noam Rosenthal
Thanks for the heads up, Anders I've created a bug for this, https://bugs.webkit.org/show_bug.cgi?id=122207 On Wed, Oct 2, 2013 at 3:19 AM, Anders Carlsson wrote: > Hello, > > I just wanted to let everyone know that we (Apple) are moving away from > DrawingAreaImpl and always using our tiled dr