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How to Spot (and Fix) 5 Common Performance Bottlenecks in Pandas Workflows

news.ycombinator.com Jamil Semaan 2025-10-10 02:39:47

Slow data loads, memory-intensive joins, and long-running operations—these are problems every Python practitioner has faced. They waste valuable time and make iterating on your ideas harder than it should be. This post walks through five common pandas bottlenecks, how to recognize them, and some workarounds you can try on CPU with a few tweaks to your code—plus a GPU-powered drop-in accelerator, cudf.pandas, that delivers order-of-magnitude speedups with no code changes. Don’t have a GPU on yo

Topics: cudf df gpu memory pandas

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Morse Code Translator

news.ycombinator.com Unknown 2025-10-13 08:23:29

Translate Morse to English & English to Morse code Instantly Perfect for amateur radio and emergency communications Practice with repeat mode for skill development Toggle slash separators for different formatting styles Use the copy button for quick text sharing Morse Code Creator: use the green morse code generator button to create random phrases Access advanced audio settings to customize frequency (200-1000 Hz), playback speed, and WPM for professional training standards. Download your

Topics: audio code english morse text

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Does anyone still use Morse code?

news.ycombinator.com Unknown 2025-10-13 18:23:29

Translate Morse to English & English to Morse code Instantly Perfect for amateur radio and emergency communications Practice with repeat mode for skill development Toggle slash separators for different formatting styles Use the copy button for quick text sharing Morse Code Creator: use the green morse code generator button to create random phrases Access advanced audio settings to customize frequency (200-1000 Hz), playback speed, and WPM for professional training standards. Download your

Topics: audio code english morse text

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Using Your Phone on Toilet May Give You Hemorrhoids: Study

news.ycombinator.com Https 2025-10-14 01:17:16

Of all the crappy ways smartphones have affected our health, this one is a real kick in the pants. A first-of-its-kind study links excessive scrolling on the phone while sitting on the toilet with hemorrhoids. (Insert poo emojis.) But, seriously. Sitting on an open bowl offers no support for the pelvic floor. That puts pressure on veins in the rectum, making them swollen and inflamed. “The longer you sit on the toilet, the worse it is for you,” said Dr. Trisha Pasricha, director of the Beth

Topics: bathroom hemorrhoids pasricha people said

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James Gunn Claims ‘Peacemaker’ Will Tie-In ‘Directly’ to ‘Superman: Man of Tomorrow’

gizmodo.com Gordon Jackson 2025-10-14 03:43:52

Superman director James Gunn is doubling down on his recent Instagram post where he said that the second season of Peacemaker is essentially the “prequel” to upcoming Man of Steel sequel Man of Tomorrow. Responding to a fan on the platform, Gunn reiterated that the season finale of the current Peacemaker series will lead “directly” into Man of Tomorrow, despite the fact that three other DCU projects—Supergirl, Lanterns, and Clayface—will all come out in-between. Peacemaker‘s highly-acclaimed s

Topics: gunn man peacemaker season tomorrow

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The New ‘Street Fighter’ Movie Finally Has a Release Date

gizmodo.com Gordon Jackson 2025-10-14 07:00:45

James Gunn provides an update on Man of Tomorrow, Fall literally flips on its side for Fall 2, and Bigfoot ruins a dating contest. It’s morning spoilers! The Earthling Deadline reports Final Destination: Bloodlines’ Zach Lipovsky and Adam Stein are attached to direct The Earthling, an adaptation of Jonathan Marty’s unpublished short story at Columbia Pictures. The plot is firmly under wraps, but the “survival sci-fi story” is said to contain “shades of The Martian and Edge of Tomorrow.” Patri

Topics: blood fall patricia tomorrow trailer

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The Download: longevity myths, and sewer-cleaning robots

technologyreview.com Rhiannon Williams 2025-10-14 11:10:00

—Jessica Hamzelou Earlier this week, my editor forwarded me a video of the leaders of Russia and China talking about immortality. “These days at 70 years old you are still a child,” China’s Xi Jinping, 72, was translated as saying. “With the developments of biotechnology, human organs can be continuously transplanted, and people can live younger and younger, and even achieve immortality,” Russia’s Vladimir Putin, also 72, is reported to have replied. In reality, rounds of organ transplantatio

Topics: 72 china immortality manual read

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io_uring is faster than mmap

news.ycombinator.com Unknown 2025-10-14 17:01:11

TL;DR Sourcing data directly from disk IS faster than caching in memory. I brought receipts. Because hardware got wider but not faster, the old methods don't get you there. You need new tools to use what is scaling and avoid what isn't. Introduction In part 1 I showed how some computer performance factors are scaling exponentially while others have been stagnant for decades. I then asserted, without proof, that sourcing data from disk can be faster than from memory. What follows is the proof.

Topics: 10 data int memory unsigned

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Memory is slow, Disk is fast – Part 2

news.ycombinator.com Unknown 2025-10-15 03:01:11

TL;DR Sourcing data directly from disk IS faster than caching in memory. I brought receipts. Because hardware got wider but not faster, the old methods don't get you there. You need new tools to use what is scaling and avoid what isn't. Introduction In part 1 I showed how some computer performance factors are scaling exponentially while others have been stagnant for decades. I then asserted, without proof, that sourcing data from disk can be faster than from memory. What follows is the proof.

Topics: 10 data int memory unsigned

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Cloud provider Lambda may be gearing up for an IPO

techcrunch.com Rebecca Szkutak 2025-10-16 07:43:06

In Brief Cloud provider Lambda might be following rival CoreWeave to the public markets. Lambda, an AI infrastructure company offering on-demand GPUs, has hired bankers for an upcoming IPO, according to reporting from The Information. Lambda has reportedly hired Morgan Stanley, J.P. Morgan, and Citi for a public listing that could happen as early as the first half of 2026. Lambda did not respond to a request for comment. The company has raised more than $1.7 billion in funding, according to

Topics: according company lambda morgan public

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‘Alien: Earth’ Finally Gave Us the Episode We Were Waiting For

gizmodo.com Germain Lussier 2025-10-18 11:15:55

When I saw the title for the fifth episode of Alien: Earth, it seemed too good to be true. Could the episode actually live up to the implications of its title? Were we about to get a brand-new, full-fledged Alien movie in the comfort of our home? Thankfully, the answer to both those questions is “Yes.” The fifth episode of Alien: Earth saw creator Noah Hawley deliver his own version of an Alien movie in the confines of his show, and it was familiar, fascinating, and fraught with tension. Let’s d

Topics: episode just know morrow ship

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Puffy Cloud Mattress Review: Soft but Supportive

wired.com Julia Forbes 2025-10-19 11:35:00

I will admit that, once upon a time, I was not the Puffy Cloud’s biggest supporter. I’ve tested this memory foam mattress multiple times over my five-year mattress testing career and believed it simply wasn’t for me—too soft, not enough spinal support. Well, times change, don’t they? Granted, during my previous tests, I didn’t spend a whole week sleeping on the Cloud in my own bedroom, as I did this time. I now also consider myself a side sleeper, which has a whole other set of requirements than

Topics: cloud foam mattress memory support

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Indices, not Pointers

news.ycombinator.com Unknown 2025-10-19 10:21:30

Indices, not Pointers There is a pattern I’ve learned while using Zig which I’ve never seen used in any other language. It’s an extremely simple trick which - when applied to a data structure - reduces memory usage, reduces memory allocations, speeds up accesses, makes freeing instantaneous, and generally makes everything much, much faster. The trick is to use indices, not pointers. This is something I learned from a talk by Andrew Kelley (Zig’s creator) on data-oriented design. It’s used in Z

Topics: allocation data memory node nodes

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Show HN: Moribito – A TUI for LDAP Viewing/Queries

news.ycombinator.com Unknown 2025-10-21 02:10:51

森人 - Mori-bito (forest-person) A terminal-based LDAP server explorer built with Go and BubbleTea, providing an interactive interface for browsing LDAP directory trees, viewing records, and executing custom queries. Features 🌲 Interactive Tree Navigation : Browse LDAP directory structure with keyboard/mouse : Browse LDAP directory structure with keyboard/mouse 📄 Record Viewer : View detailed LDAP entry attributes : View detailed LDAP entry attributes 📋 Clipboard Integration : Copy attribute

Topics: com ldap moribito page query

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Memory is slow, Disk is fast – Part 1

news.ycombinator.com Unknown 2025-10-17 06:50:01

TL;DR Hardware got wider, not faster. More cores, more bandwidth, huge vector units — but clocks, IPC, and latency flatlined. Old rules like “memory is faster than disk” are breaking. To go fast today, you have to play the new game. “CPUs keep getting faster every generation” Over the past 20 years or so computer hardware has evolved such that some facts we “know” about computers are wrong. Even among computer scientists, or perhaps especially among computer scientists, intuitions are off tar

Topics: bandwidth faster instructions latency memory

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Drew Barrymore Wants To Remake Cult Horror Comedy ‘Death Becomes Her’ With Adam Sandler, Jennifer Aniston

gizmodo.com Isaiah Colbert 2025-10-21 02:59:53

Hollywood remakes—be they sequels or reboots—are so extremely in vogue that they verge on being among the only movies that seem to get made these days. So it makes sense that Drew Barrymore is soft-pitching a remake of the 1992 cult classic dark horror comedy film, Death Becomes Her. Speaking on her eponymous talk show, Barrymore said she wants to work with friends Jennifer Aniston and Adam Sandler to revive a bunch of older films. And chief among them is Back to the Future director Robert Zeme

Topics: barrymore death film remake substance

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Why the Pixel 10’s UFS 4.0 storage upgrade won’t actually speed things up

androidauthority.com Unknown 2025-10-21 09:30:28

Robert Triggs / Android Authority Our Pixel 10 AMA was filled with great questions, but a couple of them stood out to me regarding the upgrade to UFS 4.0 storage. If you missed the news, Google has finally ditched the aging UFS 3.1 flash storage type for the far more impressive data speeds of UFS 4.0 and Zoned UFS (ZUFS) technology to improve age-related wear and tear. That is, as long as your new phone has 256GB of storage or more. The 128GB Pixel 10 and 10 Pro still have UFS 3.1 memory, just

Topics: 10 memory pixel storage ufs

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The future of 32-bit support in the kernel

news.ycombinator.com Unknown 2025-10-22 14:48:22

The future of 32-bit support in the kernel [LWN subscriber-only content] Welcome to LWN.net The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the Linux and free software communities. If you enjoy this article, please consider subscribing to LWN. Thank you for visiting LWN.net! Arnd Bergmann started his Open Source Summit Europe 2025 talk with a clear statement of position: 32-bit systems ar

Topics: 32 bit memory support systems

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The Mortal Kombat II movie is postponed to a spring 2026 release

engadget.com Unknown 2025-10-23 22:25:15

We'll have to wait until May to discover the fate of Earthrealm and Johnny Cage. Mortal Kombat II, the sequel to 2021's reboot of the video game adaptation, will be pushed back from its original October 24 release date to May 15, 2026. According to a post on X from the movie's official account, the "tournament demands a new time and place, worthy of its spectacle." The delay goes against the trailer and promotional images that Warner Bros. and New Line Cinema already put out, but the studios ma

Topics: cage kombat mortal movie trailer

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How is Ultrassembler so fast?

news.ycombinator.com Unknown 2025-10-23 20:42:43

How is Ultrassembler so fast? Ultrassembler is a superfast and complete RISC-V assembler library that I'm writing as a component of the bigger Chata signal processing project. Assemblers take in a platform-dependent assembly language and output that platform's native machine code which runs directly on the processor. "Why would you want to do this?" you might ask. First, existing RISC-V assemblers that conform the the entirety of the specification, as and llvm-mc , ship as binaries that you r

Topics: code inst instructions memory return

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New research reveals longevity gains slowing, life expectancy of 100 unlikely

news.ycombinator.com Unknown 2025-10-23 10:15:44

A new study co-authored by a University of Wisconsin-Madison professor finds that life expectancy gains made by high-income countries in the first half of the 20th century have slowed significantly, and that none of the generations born after 1939 will reach 100 years of age on average. Published in the journal Proceedings of the National Academy of Sciences, the study by Héctor Pifarré i Arolas of the La Follette School of Public Affairs, José Andrade of the Max Planck Institute for Demographi

Topics: expectancy future half life mortality

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Emulating aarch64 in software using JIT compilation and Rust

news.ycombinator.com Unknown 2025-10-19 16:58:02

Emulating aarch64 in software using JIT compilation and Rust by Manos Pitsidianakis on 2025-08-25 I was able to write a simple just-in-time compiled emulator for the aarch64 ISA (Arm A-profile A64 Instruction Set Architecture). The Armv8-A/Armv9-A specs are massive in size, so the initial scope is for basic functionality and almost no optional architectural features such as SIMD. I wrote the emulator as an exercise in understanding how QEMU’s TCG (Tiny Code Generator) software emulation works

Topics: entry gdb instruction let memory

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The No-CPU Amiga Demo Challenge

news.ycombinator.com Unknown 2025-10-24 15:20:28

The No-CPU Amiga Demo Challenge This is an open challenge to create demos that run entirely on the Amiga custom chips without involving the CPU. This repository contains the rules of the challenge and a runner application for launching no-CPU demos. This is intended as a standard specification of the no-CPU platform for demo competitions. There will be a dedicated no-CPU Amiga demo competition at Gerp 2026, January 23-25, 2026. In addition, this is an ongoing challenge — an invitation to expl

Topics: amiga cpu demo memory ocs

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Deploying DeepSeek on 96 H100 GPUs

news.ycombinator.com Unknown 2025-10-25 11:07:28

by: The SGLang Team , May 05, 2025 DeepSeek is a popular open-source large language model (LLM) praised for its strong performance. However, its large size and unique architecture, which uses Multi-head Latent Attention (MLA) and Mixture of Experts (MoE), require an advanced system for efficient serving at scale. In this blog, we explain how we match DeepSeek's inference system performance with SGLang. Our implementation, shown in the figure above, runs on 12 nodes in the Atlas Cloud, each equ

Topics: batch decode deepseek memory sglang

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A deep dive into Debian 13 /tmp: What's new, and what to do if you don't like it

news.ycombinator.com Unknown 2025-10-26 00:39:44

Debian 13 “Trixie” introduces an important change to /tmp. Traditionally, it’s been just another filesystem, albeit with some special permissions that allows everyone on the system to use it without being able to remove each other’s files. In Trixie, it’s been moved off the disk into memory – specifically a type of memory called tmpfs. To quote the tmpfs man page: The tmpfs facility allows the creation of filesystems whose contents reside in virtual memory. Since the files on such filesystems

Topics: files memory mount tmp tmpfs

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A Deep Dive into Debian 13 /tmp: What's New, and What to Do If You Don't Like It

news.ycombinator.com Unknown 2025-10-26 05:39:44

Debian 13 “Trixie” introduces an important change to /tmp. Traditionally, it’s been just another filesystem, albeit with some special permissions that allows everyone on the system to use it without being able to remove each other’s files. In Trixie, it’s been moved off the disk into memory – specifically a type of memory called tmpfs. To quote the tmpfs man page: The tmpfs facility allows the creation of filesystems whose contents reside in virtual memory. Since the files on such filesystems

Topics: files memory mount tmp tmpfs

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iPhone 17 vs. iPhone 17 Air, 17 Pro, 17 Pro Max: New Rumored Specs Compared

cnet.com See Full Bio 2025-10-27 05:00:00

While we typically wait until phones are actually released to compare them, Apple's next iPhone models are so highly anticipated that we'll make an exception. We're basing our comparisons on the most credible rumors of what's coming in the iPhone 17 series, including a potential super-thin iPhone 17 Air, to give readers an early sense of how the new series of phones may look. Last year's iPhone 16 series added a handful of upgrades over its predecessors, most notably the new Camera Control key.

Topics: 17 camera iphone pro rumors

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Don't Want Gemini to Learn About You? How to Turn That New Feature Off

cnet.com See Full Bio 2025-10-27 23:52:02

The more you chat with Google's Gemini, the better it will get to know you thanks to a new learning feature in the generative AI chatbot. Gemini has already been able to recall past conversations if you ask it to, but this new functionality will allow it to learn your preferences and interact with you in more personalized ways, Google said. But if you don't want an AI to learn about you, you can turn it off. AI chatbots have seen their memories grow longer this year. Other tools, like OpenAI'

Topics: ai feature gemini memory turn

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The Pixel 10 comes with 12GB of RAM, but Google has locked some of it away

androidauthority.com Unknown 2025-10-29 15:15:09

Robert Triggs / Android Authority The Google Pixel 10 series has plenty of new features for both fans and newcomers. As is Google’s current direction of travel, many of these focus on new or improved AI tools. However, leaning heavily on AI to power smartphones requires a few changes to how we usually think about running apps. Typically, when we open an app, we expect it to appear within a second or so, with the phone quickly fetching it from storage and loading it into RAM. Larger application

Topics: ai google memory pixel ram

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How much RAM do you actually need in 2025? I broke it down for Windows and Mac users

zdnet.com Cesar Cadenas 2025-10-29 15:53:00

Kerry Wan/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways RAM is an important hardware resource that allows a computer to perform optimally and at fast speeds. Escalating computing demands have made 16GB of RAM the new standard for PCs and laptops if they are to continue performing at their best. Even then, 16GB of memory may not be enough for certain users, so it's important to know when to upgrade. I used to struggle when shopping for a new computer. Ove

Topics: 16gb computer laptop memory ram

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Latest Tech News

How to Spot (and Fix) 5 Common Performance Bottlenecks in Pandas Workflows

Morse Code Translator

Does anyone still use Morse code?

Using Your Phone on Toilet May Give You Hemorrhoids: Study

James Gunn Claims ‘Peacemaker’ Will Tie-In ‘Directly’ to ‘Superman: Man of Tomorrow’

The New ‘Street Fighter’ Movie Finally Has a Release Date

The Download: longevity myths, and sewer-cleaning robots

io_uring is faster than mmap

Memory is slow, Disk is fast – Part 2

Cloud provider Lambda may be gearing up for an IPO

‘Alien: Earth’ Finally Gave Us the Episode We Were Waiting For

Puffy Cloud Mattress Review: Soft but Supportive

Indices, not Pointers

Show HN: Moribito – A TUI for LDAP Viewing/Queries

Memory is slow, Disk is fast – Part 1

Drew Barrymore Wants To Remake Cult Horror Comedy ‘Death Becomes Her’ With Adam Sandler, Jennifer Aniston

Why the Pixel 10’s UFS 4.0 storage upgrade won’t actually speed things up

The future of 32-bit support in the kernel

The Mortal Kombat II movie is postponed to a spring 2026 release

How is Ultrassembler so fast?

New research reveals longevity gains slowing, life expectancy of 100 unlikely

Emulating aarch64 in software using JIT compilation and Rust

The No-CPU Amiga Demo Challenge

Deploying DeepSeek on 96 H100 GPUs

A deep dive into Debian 13 /tmp: What's new, and what to do if you don't like it

A Deep Dive into Debian 13 /tmp: What's New, and What to Do If You Don't Like It

iPhone 17 vs. iPhone 17 Air, 17 Pro, 17 Pro Max: New Rumored Specs Compared

Don't Want Gemini to Learn About You? How to Turn That New Feature Off

The Pixel 10 comes with 12GB of RAM, but Google has locked some of it away

How much RAM do you actually need in 2025? I broke it down for Windows and Mac users

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