npub1z4ppnl4myf7dr30t6lhdah3d7apdtsa5skwj0lttjl08flyn97rs0z4u3u (npub1z4p…4u3u) >I think we should seriously consider whether the performance improvement is really worth the constant security & correctness issues.
If CPUs were made without speculative execution, I estimate that CPUs would be 80% slower - not really a problem for decently written software, but a massive problem for what proprietary software writers and web-developers put out.
Theoretically you could do speculative execution securely if you didn't cut corners and made it impossible to recover information from mispredictions - but that would be quite a bit slower, so CPU manufacturers won't do that.
Really, attacks seem to only be a problem if you're running proprietary malware on your computer - if you don't do that, you're pretty safe.
翠星石 /
npub1x2…jar98
2023-08-17 07:14:31
in reply to nevent1q…epyx
Author Public Key
npub1x2vc8gu0kj2slcujhkd2y684k32e2zhzn78d2quea4tajn9ql2pqqjar98Published at
2023-08-17 07:14:31Event JSON
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"content": "nostr:npub1z4ppnl4myf7dr30t6lhdah3d7apdtsa5skwj0lttjl08flyn97rs0z4u3u \u003eI think we should seriously consider whether the performance improvement is really worth the constant security \u0026 correctness issues.\nIf CPUs were made without speculative execution, I estimate that CPUs would be 80% slower - not really a problem for decently written software, but a massive problem for what proprietary software writers and web-developers put out.\n\nTheoretically you could do speculative execution securely if you didn't cut corners and made it impossible to recover information from mispredictions - but that would be quite a bit slower, so CPU manufacturers won't do that.\n\nReally, attacks seem to only be a problem if you're running proprietary malware on your computer - if you don't do that, you're pretty safe.",
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