Based purely on my own experience, these provide mixed benefit to a fully validating parser. It depends on your input and how willing you are to specialize.
For XML 1.0, valid code points are explicit and there are a ton of them. It's not something easily fit into this SSE model. You're still going to end up checking each code point individually and a simple LUT already does this really quickly. You may be able to speed this up somewhat by special-casing when you're decoding UTF-8 and all bytes represent a single code point. On Fri, Jun 13, 2014 at 10:04 AM, Chris Healy <cphe...@gmail.com> wrote: > I am working on a project that uses libxml2 extensively that also uses a > newer Intel chipset. I'm looking to improve it's performance and have read > that the newer Intel chipsets have new instructions (SSE4.2) that can help > accelerate XML parsing: > > https://software.intel.com/en-us/articles/xml-parsing-accelerator-with-intel-streaming-simd-extensions-4-intel-sse4/ > > > Are the methods discussed in this whitepaper applicable to libxml2? Are > there any technical reasons why this could not / should not be done? > > Regards, > > Chris > > _______________________________________________ > xml mailing list, project page http://xmlsoft.org/ > xml@gnome.org > https://mail.gnome.org/mailman/listinfo/xml > -- Cory Nelson http://int64.org _______________________________________________ xml mailing list, project page http://xmlsoft.org/ xml@gnome.org https://mail.gnome.org/mailman/listinfo/xml
