== Backlog of Qt and QtWebKit problems == === Qt problems === * ARM optimized qdrawhelper is only enabled for RCVT (symbian) . The needs to be transferred to gcc inline assembly. This will optimize memfill, Source, SourceOver and some blend functions. * ARMv6 should be auto detected. Currently arm/armv6 can be passed as -embedded options. The benefit of ARMv6 in src/corelib is the use of atomic load and exchange, instead of the old "swap" extension. `__ARCH_ARM_6__` should be used to detect it. * Enabled pld (preload) in qdrawhelper for ARMv5te and upwards * QImageReader deserves some optimatations. E.g. decode to the QImage provided to the decoder, do not parse every gif when trying to determine the size. * Changes to QHttpNetworkReply to reduce memory reallocations. Reserve some bytes instead of doing ''QByteArray::append'' all them time. * Cut down on the usage of QUrl::toEncoded, cache it somewhere. === QtWebKit problems === * Loading of http://en.wikipedia.org/wiki/Maxwell_equations is triggering bad "scheduling". The loading_standalone test has been extracted but is not able to highlight the problem. This is a Qt and QtWebKit issue, it must be understood first. * Image decoder changes needs to be measured. Do they make anything faster/slower? Do they consume more or less memory? * TCmalloc needs to be tested. Does it make anything faster/slower? How to test memory fragmentation. * The fuzz testing will make QtWebKit go in infinite loops and stop working. This situation needs to be analyzed as this can be a serve reliabality problem.