Adobe Flash

Résumé

Adobe Flash, ou Flash, anciennement Macromedia Flash, désigne un ensemble de technologies logicielles permettant la manipulation de , d' et de scripts ActionScript en vue de créer ou utiliser des contenus multimédia (animations, vidéos, jeux, applications...). Le logiciel Flash Player est développé et distribué par Macromedia jusqu'en 2005, à la suite de son rachat par Adobe Systems, qui assura le support du logiciel jusqu'à la fin de sa prise en charge le . Flash Player était disponible sous forme de plugin sur la plupart des navigateurs web, qui permettait l'utilisation d'objets interactifs ou le streaming de flux vidéos, ce qui n'était pas permis nativement par les navigateurs à l'époque. Flash peut désigner, un environnement de développement intégré (IDE), une machine virtuelle utilisée par Flash Player ou serveur Flash pour lire les fichiers Flash (extension SWF). À la suite de son lancement en 1996, la technologie Flash devient l'une des plus populaires pour ajouter des animati

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https://fr.wikipedia.org/wiki/Adobe_Flash

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Querying Persistent Graphs using Solid State Storage

Manoussos Gavriil Athanassoulis

Recent advances in solid state technology have led to the introduction of Solid State Drives (SSDs). Todays SSDs store data persistently using NAND flash memory. While SSDs are more expensive than hard disks when measured in dollars per gigabyte, they are significantly cheaper when measured in dollars per random I/O per second. Additional storage technologies are under development, Phase Change Memory (PCM) being the next one to enter the marketplace. PCM is nonvolatile, it can be byte-addressable, and in future Multi Level Cell (MLC) devices, PCM is expected to be denser than DRAM. PCM has lower read and write latency compared to NAND flash memory, and it can endure orders of magnitude more write cycles before wearing out. Recent research has shown that solid statedevices can be particularly beneficial for latency-bound applications involving dependent reads. Latency-bound applications like path processing in the context of graph processing or Resource Description Framework (RDF) data processing are typical examples of these applications.We demonstrate via a custom graph benchmark that even an early prototype Phase Change Memory device can offer significant improvements over mature flash devices (1.5x - 2.5x speedup in response times). We take this observation further by building Pythia, a prototype RDF repository tailor-made for Solid State Storage to investigate the predicted benefits for these type of workloads that can be achieved in a properly designed RDF repository. We compare the performance of our repository against the state of the art RDF-3X repository in a limited set of tests and discuss the results. We finally compare the performance of our repository running on a PCM-based device against a state of the art flash device, showing that there is indeed significant gain to be achieved by using PCM jfor RDF processing.

2013

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Emerging Non-Volatile Memories (eNVMs) such as Phase-Change RAMs (PCRAMs) or Oxide-based Resistive RAMs (OxRRAMs) are promising candidates to replace Flash and Static Random Access Memories in many applications. This paper introduces a novel set of building blocks for Field-Programmable Gate Arrays (FPGAs) using eNVMs. We propose an eNVM-based configuration point, a look-up table structure with reduced programming complexity and a high-performance switchbox arrangement. We show that these blocks yield an improvement in area and write time of up to 3x and 33x respectively vs. a regular Flash implementation. By integrating the designed blocks in a FPGA, we demonstrate an area and delay reduction of up to 28% and 34% respectively on a set of benchmark circuits. These reductions are due to the eNVM 3-D integration and to their low on-resistance state value. Finally, we survey many flavors of the technologies and we show that the best results in terms of area and delay are obtained with Pt/TiO2/Pt stack, while the lowest leakage power is achieved by InGeTe stack.

Institute of Electrical and Electronics Engineers2013

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