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Oblivion Remastered on PC - time for some performance testing, where we find tremendously bad stuttering issues, bewilderingly high CPU utilisation along with heavy GPU requirements that are hard to justify. Alexander Battaglia reports:

116,736 просмотров • 1 год назад •via X (Twitter)

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Say hello to Boojum 👋: zkSync Era’s new high-performance proof system for radical decentralization. Boojum is an upgrade that will transition zkSync Era to a STARK-powered proof system, providing world-class performance on consumer-grade hardware. 💡 Learn more: TL;DR 👇 Boojum is the name of our Rust-based cryptographic library, which we use to implement the upgraded version of the ZK circuits for zkSync Era and the ZK Stack. The name Boojum was inspired by Lewis Carroll's poem "The Hunting of the Snark," where the Boojum represents the most fearsome kind of Snark. We intentionally designed zkSync Era in a way that cryptographic upgrades can be made without a regenesis, meaning that the Boojum upgrade won’t cause any user disruptions. Why Boojum❓ From day one, zkSync’s mission is to advance personal freedom for all — making digital self-ownership universally accessible by building a blockchain network that is trustless, secure, permissionless, affordable, easy to use, resilient and limitlessly scalable. Boojum plays an important role in advancing this mission by delivering: 1. World-class performance zkSync Era’s current SNARK-based proof system is effective today, but it won’t scale to the volume that we envision for hyperchains. zkSync Era’s sequencer can already process over 100 TPS; Boojum orders of magnitude improvements to performance complements this well. 2. Reduced hardware requirements for decentralization Our long-term goal is to enable user-powered, decentralized proof generation. Boojum represents a breakthrough in this direction — with the prover running on consumer-grade GPUs requiring only 16 GB GPU RAM. Boojum’s Journey to Mainnet 🚴🏽‍♀️ Boojum is now live on Mainnet, generating and verifying ‘shadow proofs’ today with real production data so that we can carefully test the system ahead of fully migrating. Today, we’re also open-sourcing the repo; if you’d like to take a look, you can find it here 👇 This is the first of a series of posts on Boojum. We will provide updates on our progress, including more details on implementation, security, and performance. Watch here for more, anon ∎

ZKsync

826,935 просмотров • 3 лет назад

"Lift lighter as you get older. Protect your joints." The standard advice. The wrong advice. What heavy lifting actually does for an ageing body: - Builds tendon stiffness, which protects joints rather than wearing them - Maintains the high threshold motor units that are first to disappear with age - Stimulates bone density, the thing osteoporosis attacks - Develops the strength reserve that keeps you independent at 80 What high reps do for an ageing body: - Generate more total fatigue per session - Take longer to recover from (a problem that compounds with age) - Do nothing for tendon stiffness - Do nothing for fast twitch preservation - Make you tired without making you strong Recovery capacity declines with age. The worst thing you can do is pick the more fatiguing option and call it gentle. The actual protocol: - Heavy enough to challenge the muscle (4-6 reps, near failure) - Machines for most of the work (less spinal load, less balance demand, more stimulus to the muscle, less risk) - Skip the 1RM testing, skip the maxing out on barbell squats and deadlifts - That isn't where the magic was anyway You don't need to max out a barbell to lift heavy. You need to challenge the muscle with a load it respects. The leg press at 200kg does this. The hack squat does this. The chest-supported row does this. None of them are ego lifts. All of them are heavy. Lifting lighter to "protect" your joints is how you arrive at 75 unable to stand up from a chair. Lifting heavy on machines is how you arrive at 75 carrying your own shopping.

Sama Hoole

35,515 просмотров • 1 месяц назад