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sharedarraybuffer
About this tag
SharedArrayBuffer is a JavaScript feature that enables sharing of memory between web workers, allowing for high-performance parallel computations in the browser. On WindowsForum.com, discussions cover its implementation in Microsoft Edge and Internet Explorer, particularly in the context of security mitigations for speculative execution side-channel attacks. Microsoft's updates, such as KB4056890, modified SharedArrayBuffer behavior to reduce vulnerability risks. The tag also relates to broader JavaScript optimizations in the Chakra engine, including WebAssembly and Atomics, which together enhance web application performance. Users exploring this tag will find threads on balancing performance gains with security considerations in Microsoft browsers.
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Mitigating speculative execution side-channel attacks in Microsoft Edge and Internet Explorer
Today, Google Project Zero published details of a class of vulnerabilities which can be exploited by speculative execution side-channel attacks. These techniques can be used via JavaScript code running in the browser, which may allow attackers to gain access to memory in the attacker’s process...- News
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- attack prevention browser security cpu cache fall creators internet explorer javascript john hazen kb4056890 memory access microsoft edge mitigation performance project zero security updates sharedarraybuffer side-channel speculative execution update vulnerability windows 10
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Introducing new JavaScript optimizations, WebAssembly, SharedArrayBuffer, and Atomics in...
JavaScript performance has always been a core area of focus for our team. Every release, we look for opportunities to improve end users’ browsing experience on real workloads with shorter start-up time, faster execution, and leaner memory usage. These efforts are guided by invaluable ongoing...- News
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- atom browser chakra deferral edgehtml feedback future enhancements inline cache javascript jit compilation memory usage optimization performance sharedarraybuffer startup time try finally webassembly webassembly mvp windows 10
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