| | 1 | == Backlog of Qt and QtWebKit problems == |
| | 2 | |
| | 3 | === Qt problems === |
| | 4 | * 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. |
| | 5 | |
| | 6 | * 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. |
| | 7 | |
| | 8 | * Enabled pld (preload) in qdrawhelper for ARMv5te and upwards |
| | 9 | |
| | 10 | * 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. |
| | 11 | |
| | 12 | * Changes to QHttpNetworkReply to reduce memory reallocations. Reserve some bytes instead of doing ''QByteArray::append'' all them time. |
| | 13 | |
| | 14 | * Cut down on the usage of QUrl::toEncoded, cache it somewhere. |
| | 15 | |
| | 16 | === QtWebKit problems === |
| | 17 | * 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. |
| | 18 | |
| | 19 | * Image decoder changes needs to be measured. Do they make anything faster/slower? Do they consume more or less memory? |
| | 20 | |
| | 21 | * TCmalloc needs to be tested. Does it make anything faster/slower? How to test memory fragmentation. |
| | 22 | |
| | 23 | * 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. |
