xpi
4.9K posts
xpi
@xpi
he/programmable soda myers briggs: TIOCNOTTY antifa bus driver
127/8 انضم Şubat 2007
1.9K يتبع186 المتابعون
Why can't we just coat the rebar. Zinc it or nitride it or dip it in epoxy or something. Surely there's a solution here. What about just a shitload of aluminum rebar. Is there a voltaic thing
Steve Mouzon@stevemouzon
Reinforced concrete is fragile because it is self-defeating: the host material (concrete) is a really heavy sponge, delivering water right to the reinforcing that supposedly makes it strong, but water rusts steel. This bridge endured for less than a decade.
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How do you kill a Supercomputer?
(Accidentally) using radioactive solder is a good way.
IBM’s Blue Gene/L frequently crashed when running simulations at LLNL.
Turned out that alpha particles from the lead solder in the board carrier were slamming the L1 cache with bit flips. It’s a particularly nasty issue. Unlike DRAM /w ECC, there wasn’t a transparent way to correct it.
The fix was brutal. IBM recommended scientists reprogram critical workloads to write-through mode.
Basically, every store in L1 would also travel down the cache hierarchy immediately. If L1 got corrupted, the kernel would invalidate the whole cacheline and force a refill from slower pools.
It worked…but had a massive performance hit. As much as 20-30%!
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@coseyfannitutti @UKChange 'The horse made an error'
- nothing's wrong here horseposter
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End the Grand National: Stop horse deaths at Aintree c.org/Zt5NKdSr via @UKChange
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AI Concludes FreeBSD is a terrible Linux distro.
😅
Brad Spengler@spendergrsec
Looking through that Aisle blog, nobody noticed DeepSeek recommended to use my 2007 technique for *Linux* for FreeBSD where it'll do nothing (because those functions don't exist?)
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Looking through that Aisle blog, nobody noticed DeepSeek recommended to use my 2007 technique for *Linux* for FreeBSD where it'll do nothing (because those functions don't exist?)
English
xpi أُعيد تغريده
Western Hemisphere Israel, Eastern Hemisphere Palestine. You’re welcome.
Slazac 🇪🇺🇺🇦🇹🇼🌐@TrueSlazac
Your task is to divide the world into ten countries or less and anger as few people as possible
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@lauriewired There are so many oscilators to chose from... But the RTDSC from the multimedia systems are TSC like, lower freq
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Recently, I’ve been working a project making heavy use of CPU Time Stamp Counters (RDTSC on x86).
It’s such a convenient tool for measuring performance as long as you're careful.
Got me thinking…what did people do *before* Time-Stamp Counters?
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@TracketPacer FF:FF:FF:FF:FF:FF always watch random older hardware not handle it
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amusing myself at work by choosing the funniest mac addresses for our ground facing equipment lets go
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Ellen Ripley, LV-426, and the iconic M41A Pulse Rifle.
One of the most perfect pieces of sci-fi design ever put on screen! #Aliens
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this was how i made my entrance to the computer science department student body at 12 years old
i bunker cheesed
⭕ Brock Pierson@brockpierson
Who else played Starcraft??
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Here’s what I’d do if I was in charge of GitHub, in order:
1. Have more than one 9 of uptime
2. Have more than two 9s of uptime
3. Have more than three 9s of uptime (this one’s hard)
4. Have more than four 9s of uptime
5. Have more than five 9s of uptime
Mitchell Hashimoto@mitchellh
Here’s what I’d do if I was in charge of GitHub, in order: 1. Establish a North Star plan around being critical infrastructure for agentic code lifecycles and determine a set of ways to measure that. 2. Fire everyone who works on or advocates for copilot and shut it down. It’s not about the people, Im sure theres many talented people, youre just working at the wrong company. 3. Buy Pierre and launch agentic repo hosting as the first agentic product. Repos would be separate from the legacy web product to start since they’re likely burdened with legacy cross product interactions. 4. Re-evaluate all product lines and initiatives against the new North Star. I suspect 50% get cut (to make room for different ones). The big idea is all agentic interactions should critically rely on GitHub APIs. Code review should be agentic but the labs should be building that into GH (not bolted in through GHA like today, real first class platform primitives). GH should absolutely launch an agent chat primitive, agent mailboxes are obviously good. Etc. GH should be a platform and not an agent itself. This is going to be very obviously lacking since I only have external ideas to work off of and have no idea how GitHub internals are working, what their KPIs are or what North Star they define, etc. But, with imperfect information, this is what I’d do.
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