So, what did they find when they took their spudgers to the PS Vita? First and foremost, a very modular design which should aid in the swapping in and out of parts during repair. As we mentioned, this is made easier by Sony's use of common Phillips #00 screws. There's also nothing securing the battery in place and preventing you from replacing it yourself if the mood strikes you (hurray!). As far as hardware is concerned, the iFixit team identified the following parts:
* Sony CXD5315GG quad-core processor
* Samsung KLM4G1FE3A-F001 512 MB Mobile DDR2 SDRAM
* Fujitsu MB44C026A
* Marvell 88W878S-BKB2 Avastar WLAN/Bluetooth/FM Single-Chip SoC
* Wolfson Micro WM1803E audio codec
* STMicroelectronics 3GA51H gyroscope
* Kionix KXTC9 three-axis MEMS accelerometer
Haswell will have transactional memory
Chipzilla has announced that when its new Haswell chip comes out next year it will have support for something called transactional memory. Transactional memory makes the creation of reliable multithreaded programs easier by using a system where complex operations can be performed at the same time and in isolation from each other. The system has been seen in database management but making a chip work using it is new.
Intel calls it Transactional Synchronisation Extensions(TSX). There is the Hardware Lock Elision (HLE) allows easy conversion of lock-based programs into transactional programs in a way that's backwards compatible with current processors. Then there is the Restricted Transactional Memory (RTM) is a more complete transactional memory implementation.
It will then be possible to write programs and operating systems that will use transactions on Haswell, and hence achieve greater concurrency and have fewer threads waiting around for locks, but will still run correctly on current processors. In turn, this makes adoption of the feature much simpler and safer.
Intel calls it Transactional Synchronisation Extensions(TSX). There is the Hardware Lock Elision (HLE) allows easy conversion of lock-based programs into transactional programs in a way that's backwards compatible with current processors. Then there is the Restricted Transactional Memory (RTM) is a more complete transactional memory implementation.
It will then be possible to write programs and operating systems that will use transactions on Haswell, and hence achieve greater concurrency and have fewer threads waiting around for locks, but will still run correctly on current processors. In turn, this makes adoption of the feature much simpler and safer.
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