зеркало из https://github.com/mozilla/pjs.git
3e6ae7aba0
This patch greatly improves the performance of QCMS transformations on x86 & x86_64 systems. Some notes: 0. On 32-bit x86 systems it does runtime selection between non-SIMD, SSE, and SSE2 code paths. 1. On x86_64 systems the SSE2 code path is always taken. The non-SIMD and SSE code paths are left intact, but contemporary versions of the GCC and MSVC compilers will see that they cannot be reached and optimize them away. 2. The execution of the SSE2 code path is reduced by 67%, relative to the original Intel/Microsoft formatted ASM code. The relative performance is seen on a Pentium4 (Northwood) 2.4GHz CPU with DDR1 RAM. 3. The SSE code path provides a 80% reduction in execution time, relative to the non-SIMD code path. The relative performance is seen on a Pentium3 (Coppermine) 1.26GHz CPU with SDRAM. 4. The code has been split out into separate files so that it can be built with different cflags (-msse, and -msse2) when using gcc. |
||
|---|---|---|
| accessible | ||
| browser | ||
| build | ||
| caps | ||
| chrome | ||
| config | ||
| content | ||
| db | ||
| dbm | ||
| docshell | ||
| dom | ||
| editor | ||
| embedding | ||
| extensions | ||
| gfx | ||
| intl | ||
| jpeg | ||
| js | ||
| layout | ||
| media | ||
| memory/jemalloc | ||
| modules | ||
| netwerk | ||
| nsprpub | ||
| other-licenses | ||
| parser | ||
| probes | ||
| profile | ||
| rdf | ||
| security | ||
| storage | ||
| testing | ||
| toolkit | ||
| tools | ||
| uriloader | ||
| view | ||
| webshell | ||
| widget | ||
| xpcom | ||
| xpfe | ||
| xpinstall | ||
| xulrunner | ||
| .hgignore | ||
| .hgtags | ||
| LEGAL | ||
| LICENSE | ||
| Makefile.in | ||
| README.txt | ||
| aclocal.m4 | ||
| allmakefiles.sh | ||
| client.mk | ||
| client.py | ||
| configure.in | ||
README.txt
An explanation of the Mozilla Source Code Directory Structure and links to
project pages with documentation can be found at:
https://developer.mozilla.org/en/Mozilla_Source_Code_Directory_Structure
For information on how to build Mozilla from the source code, see:
http://developer.mozilla.org/en/docs/Build_Documentation
To have your bug fix / feature added to Mozilla, you should create a patch and
submit it to Bugzilla (http://bugzilla.mozilla.org). Instructions are at:
http://developer.mozilla.org/en/docs/Creating_a_patch
http://developer.mozilla.org/en/docs/Getting_your_patch_in_the_tree
If you have a question about developing Mozilla, and can't find the solution
on http://developer.mozilla.org, you can try asking your question in a
mozilla.* Usenet group, or on IRC at irc.mozilla.org. [The Mozilla news groups
are accessible on Google Groups, or news.mozilla.org with a NNTP reader.]
You can download nightly development builds from the Mozilla FTP server.
Keep in mind that nightly builds, which are used by Mozilla developers for
testing, may be buggy. Firefox nightlies, for example, can be found at:
ftp://ftp.mozilla.org/pub/firefox/nightly/latest-trunk/