From webkit-dev Tue Aug 18 19:35:58 2009 From: George Staikos Date: Tue, 18 Aug 2009 19:35:58 +0000 To: webkit-dev Subject: Re: [webkit-dev] Single-threaded database/storage solution Message-Id: <0EAA16F5-6B04-4592-81B0-6FA0868B8588 () kde ! org> X-MARC-Message: https://marc.info/?l=webkit-dev&m=125062419416886 On 18-Aug-09, at 1:44 PM, Yong Li wrote: > Hi, All, > > The current webkit database/storage is implemented with creating > new threads. But not all platform/products support mulple- > threading. Also, threading can be expensive on some platforms. > Except this database/storage implementation, WEBKIT platform- > crossing code can build and run in a single thread. WEBKIT > generally uses WebCore::Timer To avoid blocking UI. Another way to > avoid blocking UI is to create a separate thread for UI, and WEBKIT > code can still run in a single-thread. Now it's broken by database/ > storage code, which forces to use multiple threads for WEBKIT. In > our WINCE port, we have implemented a single-threaded solution with > WebCore::Timer. The patch has been post to https://bugs.webkit.org/ > show_bug.cgi?id=28019 . The patch is a bit out-of-date, due to > changes in upstream. New patch will come soon. Please give some > comments if you're interested. > > There's a macro ENABLE_JSC_MULTIPLE_THREADS used in JSC. Probably > there should also be a macro ENABLE_WEBCORE_MULTIPLE_THREADS. Or > just use ENABLE_MULTIPLE_THREADS for all multi-threading code. I agree with that and I think a cleanup of the patch would make it a good addition. Forcing the use of threads here is not ideal. -- George Staikos Torch Mobile Inc. http://www.torchmobile.com/ _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev