<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: rfoo</title><link>https://news.ycombinator.com/user?id=rfoo</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sat, 04 Jul 2026 11:58:42 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=rfoo" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by rfoo in "How we run Firecracker VMs inside EC2 and start browsers in less than 1s"]]></title><description><![CDATA[
<p>Assuming CRIU can checkpoint and restore Chrome, and especially recent versions of Chrome, just fine, is a little bit of stretch.</p>
]]></description><pubDate>Wed, 17 Jun 2026 20:08:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=48576129</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48576129</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48576129</guid></item><item><title><![CDATA[New comment by rfoo in "GLM 5.2 Is Out"]]></title><description><![CDATA[
<p>z.ai posted an announcement earlier that day (in GMT+8) saying that they will make GLM-5.2 available later today at 5:21pm so it can't be a coincidence.<p>Good troll.</p>
]]></description><pubDate>Sat, 13 Jun 2026 19:42:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=48520698</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48520698</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48520698</guid></item><item><title><![CDATA[New comment by rfoo in "GPT-2: Too Dangerous To Release (2019)"]]></title><description><![CDATA[
<p>> Different company<p>Same people.</p>
]]></description><pubDate>Tue, 09 Jun 2026 20:09:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=48466957</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48466957</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48466957</guid></item><item><title><![CDATA[New comment by rfoo in "Anthropic is expanding to Colossus2. Will use GB200"]]></title><description><![CDATA[
<p>At this scale thinking tokens don't matter anymore.<p>In Feb Anthropic called out three Chinese labs for "distillation attacks", but a lab missing in their post actually had most Claude generated tokens among all Chinese labs in their midtrain data :p</p>
]]></description><pubDate>Thu, 21 May 2026 14:17:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=48223004</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48223004</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48223004</guid></item><item><title><![CDATA[New comment by rfoo in "Frontier AI has broken the open CTF format"]]></title><description><![CDATA[
<p>Glad to hear that as I have some fun challenge ideas that would be otherwise too tedious to solve.</p>
]]></description><pubDate>Sun, 17 May 2026 08:41:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=48167121</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48167121</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48167121</guid></item><item><title><![CDATA[New comment by rfoo in "Dear friend, you have built a Kubernetes (2024)"]]></title><description><![CDATA[
<p>Easier checkpoint & restore.</p>
]]></description><pubDate>Tue, 05 May 2026 15:52:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=48024209</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48024209</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48024209</guid></item><item><title><![CDATA[New comment by rfoo in "Async Rust never left the MVP state"]]></title><description><![CDATA[
<p>> work stealing executors have long been known to offer significantly lower latency with more consistent P99 than traditional threads. This has been known since forever - in the early 00s<p>Well, we know how to make "traditional threads" fast, with lower latency and more consistent P99 since forever^2, in the early 90s. [1]<p>Sure, we can't convince that Finnish guy this is worthwhile to include in THE kernel, despite similar ideas had been running in Google datacenters for idk how many years, 15 years+? But nothing stops us from doing it in the userspace, just as you said, a work stealing executor. And no, no coloring.<p>Stack is all you need. Just make your "coroutines" stackful. Done. All those attempts trying to be "zero-cost" and change programming model dramatically to avoid a stack, introduced much more overhead than a stack and a piece of decent context switch code.<p>> You can tell async is directionally kind of correct in that io_uring is the kernel’s approach<p>lol, it is very hard to model anything proactor like io_uring with async Rust due to its defects.<p>[1] <a href="https://dl.acm.org/doi/10.1145/121132.121151" rel="nofollow">https://dl.acm.org/doi/10.1145/121132.121151</a></p>
]]></description><pubDate>Tue, 05 May 2026 15:11:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=48023614</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=48023614</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48023614</guid></item><item><title><![CDATA[New comment by rfoo in "Dear friend, you have built a Kubernetes (2024)"]]></title><description><![CDATA[
<p>Another case: People who want to run workloads that are inherently incompatible with Kubernetes networking model.<p>For example:<p>* For some cursed reasons you want to make sure every single one instance of a large batch job see just one NIC in its container and they are all the same IP and you NAT to the outside world. Ingress? What ingress? This is a batch job!<p>* Like the previous point, except that your "batch job" somehow has multiple containers in one instance now, and they should be able to reach each other by domain.</p>
]]></description><pubDate>Sun, 26 Apr 2026 17:55:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=47912309</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47912309</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47912309</guid></item><item><title><![CDATA[New comment by rfoo in "DeepSeek-V4 on Day 0: From Fast Inference to Verified RL with SGLang and Miles"]]></title><description><![CDATA[
<p>The problem here is both aimed for Day 0 support, both got embargoed preliminary model weights and arch, and I don't think they have access to the other sides embargoed code.</p>
]]></description><pubDate>Sun, 26 Apr 2026 07:22:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=47908159</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47908159</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47908159</guid></item><item><title><![CDATA[New comment by rfoo in "Assessing Claude Mythos Preview's cybersecurity capabilities"]]></title><description><![CDATA[
<p>> I read about 30% and got bored.<p>I was lucky then :) Somehow I saw this first. And then the "somewhat reliably writing exploits for SpiderMonkey" part, and then the crypto libraries part. Finally I wonder why is there a Linux LPE mini writeup and realized it's the "automatically turn a syzkaller report to a working exploit" part.<p>Now that I read the first few things (meh bugs in OpenBSD, FFmpeg, FreeBSD etc) they are indeed all pretty boring!</p>
]]></description><pubDate>Tue, 07 Apr 2026 19:31:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=47680224</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47680224</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47680224</guid></item><item><title><![CDATA[New comment by rfoo in "Assessing Claude Mythos Preview's cybersecurity capabilities"]]></title><description><![CDATA[
<p>> Mythos Preview identified a memory-corruption vulnerability in a production memory-safe VMM. This vulnerability has not been patched, so we neither name the project nor discuss details of the exploit.<p>Good morning Sir.<p>> Has anything changed here? I don't pay much attention but KASLR was considered basically useless for preventing LPE a few years ago.<p>No. It's still like this. Bonus point that there are always free KASLR leaks (prefetch side-channels).<p>But then, this thing is just.. I don't have a word for this. Just randomly read paragraphs from the post and it's like, what?</p>
]]></description><pubDate>Tue, 07 Apr 2026 19:17:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=47680044</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47680044</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47680044</guid></item><item><title><![CDATA[New comment by rfoo in "ARC-AGI-3"]]></title><description><![CDATA[
<p>> However, if it can't figure out to render the json to a visual on its own does it really qualify as AGI? I'd still say the benchmark is doing its job here.<p>Can you render serialized JSON text blob to a visual with your brain only? The model can't do anything better than this - no harness means no tool at all, no way to e.g. implement a visualizer in whatever programming language and run it.<p>Why don't human testers receive the same JSON text blob and no visualizers? It's like giving human testers a harness (a playable visualizer), but deliberately cripples it for the model.</p>
]]></description><pubDate>Thu, 26 Mar 2026 07:36:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=47527641</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47527641</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47527641</guid></item><item><title><![CDATA[New comment by rfoo in "Super Micro Shares Plunge 25% After Co-Founder Charged in $2.5B Smuggling Plot"]]></title><description><![CDATA[
<p>Mostly high end lithography.<p>They can copy it. And no, the software moat is not there if someone choose the blatant copy route. They just can't build it in the scale they want yet.<p>> what if they just use 12nm and create GPUs with much bigger size but comparable performance<p>Physics do not work this way :/</p>
]]></description><pubDate>Fri, 20 Mar 2026 17:57:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=47458218</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47458218</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47458218</guid></item><item><title><![CDATA[New comment by rfoo in "Cursor Composer 2 is just Kimi K2.5 with RL"]]></title><description><![CDATA[
<p>TBH they really shouldn't have posted such a tweet in the first place, just sit back and watch their license enforced by the Internet.<p>I had the question "how do you even enforce this weird license term" back then, I guess I know the answer now.</p>
]]></description><pubDate>Fri, 20 Mar 2026 10:57:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=47452909</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=47452909</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47452909</guid></item><item><title><![CDATA[New comment by rfoo in "Gemini 3 Deep Think"]]></title><description><![CDATA[
<p>For another example, Singapore, one of the "many Asian countries" you mentioned, list "Chinese New Year" as the official name on government websites. [0] Also note that both California and New York is not located in Asia.<p>And don't get me started with "Lunar New Year? What Lunar New Year? Islamic Lunar New Year? Jewish Lunar New Year? CHINESE Lunar New Year?".<p>[0] <a href="https://www.mom.gov.sg/employment-practices/public-holidays" rel="nofollow">https://www.mom.gov.sg/employment-practices/public-holidays</a></p>
]]></description><pubDate>Thu, 12 Feb 2026 22:28:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=46996190</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=46996190</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46996190</guid></item><item><title><![CDATA[New comment by rfoo in "Matchlock – Secures AI agent workloads with a Linux-based sandbox"]]></title><description><![CDATA[
<p>Sometimes people are too lazy to write their own agent loop and decided to run off-the-shelf coding agent (e.g. Claude Code, or Pi in case of clawdbot) in environment.</p>
]]></description><pubDate>Sun, 08 Feb 2026 11:52:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=46933473</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=46933473</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46933473</guid></item><item><title><![CDATA[New comment by rfoo in "Deno Sandbox"]]></title><description><![CDATA[
<p>I like this, but the project mentioned in the launch post<p>> via an outbound proxy similar to coder/httpjail<p>looks like AI slop ware :( I hope they didn't actually run it.</p>
]]></description><pubDate>Tue, 03 Feb 2026 18:41:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=46875247</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=46875247</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46875247</guid></item><item><title><![CDATA[New comment by rfoo in "Z-Image: Powerful and highly efficient image generation model with 6B parameters"]]></title><description><![CDATA[
<p>This is the only factor. People sometimes perceive Apple's NPU as "fast" and "amazing" which is simply false.<p>It's just that NVIDIA GPU sucks (relatively) at *single-user* LLM inference and it makes people feel like Apple not so bad.</p>
]]></description><pubDate>Sun, 07 Dec 2025 11:20:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=46180929</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=46180929</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46180929</guid></item><item><title><![CDATA[New comment by rfoo in "Z-Image: Powerful and highly efficient image generation model with 6B parameters"]]></title><description><![CDATA[
<p>But this is a CCP model, would it refuse to generate Xi?</p>
]]></description><pubDate>Sat, 06 Dec 2025 19:48:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=46176077</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=46176077</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46176077</guid></item><item><title><![CDATA[New comment by rfoo in "Japan's gamble to turn island of Hokkaido into global chip hub"]]></title><description><![CDATA[
<p>Okay it belongs to Taiwan, and they actually claim it, period.</p>
]]></description><pubDate>Mon, 24 Nov 2025 16:47:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=46036075</link><dc:creator>rfoo</dc:creator><comments>https://news.ycombinator.com/item?id=46036075</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46036075</guid></item></channel></rss>