Paul Khuong ([email protected])
@pkhuong
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Failed dentist, causer of situations. Removing the stupid to make room for my own mistakes. Views are my own, etc., etc.
New York, NY
Joined June 2010
@pervognsen There are only two modes in life, greek or assembly ;)
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Who wouldn't want to read about the cursed ABI that lets you mix ARM64 code and X64 code in the same address space? https://t.co/wjugI8GWiW
corsix.org
I think the audience for https://t.co/y8fEHUdtgR is approximately the empty set right now, but that might change if this Arm64EC thing takes off.
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If you're gonna shill F* just try to build it on 32 and 64 bit platforms.
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Cattle, not pets, but also don't even think of breathing in prod's general direction.
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I guess you never have to shell into prod hosts if you only ever debug known unknowns.
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Nothing says pragmatic like writing a bunch of conditionals over 20 LOC for an operation that should be <5 instructions.
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What's the ultrafinitist take on the "infinity outfits" question?
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Ah, rationalists: "it's the same game, they payouts are identical!" "After reducing two hypotheticals to 2x2 matrices with values in {-1, 0}, I don't see any difference between them. Debate me!"
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But surely a ticket left open for more than 6 weeks will never be addressed.
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Security researcher for a cloud provider that makes money by oversubscribing tenants thinks intra-core leaks are an important attack vector… to be fixed in microcode.
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🎉We are celebrating Mihalis Yannakakis’ contributions to science on the occasion of his 70th birthday with a 3-day workshop and lectures from researchers who have been strongly influenced by his work. August 16-18, 2023 Davis Auditorium Register here - https://t.co/eD1uHsV4ic
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"literate" python one-liner: `#!/usr/bin/env sed -re s|^|\x20\x20\x20\x20| -e s|^\x20{4}\x23\x23\x20?||`
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Passed Albany, started describing distances in hours again.
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Hair straightener popcorn gal is from montreal. Barely surprised.
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Fun interaction with SKX102 mitigations ( https://t.co/YHe6YiMHoz)
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Branch prediction tables on recent Intel are partitioned by jump address bit 31. Using that for isolation is such a good hack
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We often have to strengthen the induction hypothesis in recursive algorithms… but it sometimes pays to weaken and restore what was lost in post. In this case: what if we wanted TopK in any order?
Given a stream of n integers, computing the sorted top K elements takes at least? (I'm expecting a lot of people to get this wrong.)
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I don't know about the takes on absurdly low p values < 1e-1000. ISTM the real interpretation is "the sampling isn't the dominant source of error, it's probably implementation errors or cosmic rays." And that's a useful result, because these error sources always lurk!
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