这个*班今年就上到这里，现在是放假时间🏖️

A note on feature-test macros

via Arthur O’Dwyer

Arthur O’Dwyer

A note on feature-test macros

Previously on this blog: “C++2a idioms for library feature detection” (2018-10-26).

Every C++ implementation is required to provide feature-test macros indicating which
features it supports. These come in two flavors:



Core-language macros such as…

Ceph: A Journey to 1 TiB/s https://ceph.io/en/news/blog/2024/ceph-a-journey-to-1tibps/

Ceph

Ceph: A Journey to 1 TiB/s - Ceph

Ceph is an open source distributed storage system designed to evolve with data.

Improving Interoperability Between Rust and C++ https://security.googleblog.com/2024/02/improving-interoperability-between-rust-and-c.html

Google Online Security Blog

Improving Interoperability Between Rust and C++

Posted by Lars Bergstrom – Director, Android Platform Tools & Libraries and Chair of the Rust Foundation Board Back in 2021, we announced...

GitHub is preparing for IPv6 support for Github.com https://www.githubstatus.com/incidents/5y8b8lsqbbyq

Githubstatus

We are investigating reports of degraded performance.

GitHub's Status Page - We are investigating reports of degraded performance..

上海市交通委决定，从2月4日起恢复浦东机场区域内网约车运营服务。
（澎湃新闻）

Apple releases Pkl – configuration as code language https://pkl-lang.org/index.html

Windows 11 将获得对 Sudo 命令的原生支持，类似于 macOS 或 Linux 中的 sudo

微软正在测试对 Windows 11 的原生 Sudo 命令支持。对原生“Sudo”命令的支持在泄露的 Windows Server 预览版本中被发现，该版本在周末意外发布到 Windows 更新服务器。

Sudo命令将作为开发人员设置的一部分出现在 Windows 11 中。它可能允许您管理需要管理权限的设置，例如卸载应用程序、更改系统设置或其他与开发人员相关的设置。您将在 Windows 11 的开发人员设置中找到 Sudo 切换开关。

Windows latest

Source: Tech Window News 🌎

投稿：@TNSubmbot
频道：@TestFlightCN
2024年全网年货节红包

Understanding Parquet, Iceberg and Data Lakehouses at Broad

Comments

via skeptrune@users.lobste.rs (skeptrune)

David Gomes

Understanding Parquet, Iceberg and Data Lakehouses at Broad

In the past few years, I've heard a lot about Avro, Parquet, ORC, Arrow and Feather, but I also keep hearing about Iceberg and Delta Lake. As a "database person", I’ve been struggling to understand all of these different things, and how they relate to Data…

The C Bounded Model Checker: Criminally Underused https://www.philipzucker.com/cbmc_tut/

Hey There Buddo!

The C Bounded Model Checker: Criminally Underused

Follow along on a google colab: https://colab.research.google.com/github/philzook58/philzook58.github.io/blob/master/pynb/cbmc_tut.ipynb

On the Costs of Syscalls (2021) https://gms.tf/on-the-costs-of-syscalls.html

Georg's Log

On the Costs of Syscalls

It's well known that syscalls are expensive. And that software mitigations against CPU bugs (such as Meltdown) even have made them more expensive. But how expensive are they really? To begin to answer this question I wrote a small micro-benchmark in order…

ScatterAlloc: Massively Parallel Dynamic Memory Allocation for the GPU

Comments

via calvin@users.lobste.rs (calvin)

隔壁群友 @chenyy 发现了 Linux 中 mmap 在 RISC-V 指令集和其他指令集行为不一致的情况，提出了一个 patch。但是维护者十分消极对待这个 patch，且之前引入问题的、质量堪忧的 patch 也是在 review 欠缺的情况下被草率地合并的。
他认为这个问题如果不解决，对之后的 RISC-V 生态是十分灾难的，例如会影响一些内存需求较大的软件在 RISC-V 平台上的使用。因为他的频道是私有频道，有关此问题的更多详细内容请见下面的 telegraph：
https://telegra.ph/Linux-%E4%B8%AD-RISC-V-%E7%9A%84-mmap-%E7%9A%84%E9%87%8D%E5%A4%A7%E9%97%AE%E9%A2%98-01-29
因为他俩吵架已经吵不动了，现在他希望有更多相关的开发者能够参与讨论，无论是支持目前的情况还是支持他的想法，都能去邮件列表发表一下自己的见解。

Two handy GDB breakpoint tricks https://nullprogram.com/blog/2024/01/28/