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Making GitLab faster
In GitLab 8.5 we shipped numerous performance improvements. In this article we'll take a look at some of these changes and the process involved in finding and resolving these issues.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 423 posts.
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Introducing the B3 JIT compiler
WebKit's FTL JIT now uses a new backend on OS X — the Bare Bones Backend, or B3 for short, replaces LLVM as the low-level optimizer.
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ReactOS 0.4.0 Released
ReactOS is a free, opensource reimplementation of windows
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Facebook's new front-end server design
Visit the post for more.
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FreeBSD – a lesson in poor defaults
This page lists some of the changes I make to a vanilla install of FreeBSD for security hardening. Some changes to increase network performance or make things a bit more sane are also included. It only covers basic changes that a sysadmin can make to a running system.
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The curious case of slow downloads
Some time ago we discovered that certain very slow downloads were getting abruptly terminated and began investigating whether that was a client (i.e. web browser) or server (i.e. us) problem.
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Ideas for getting started in the Linux kernel
Getting new people into OSS projects is always a challenge. The Linux kernel is no different and has it’s own set of challenges. This is a follow up and expansion of some of what I talked about at Flock about contributing to the kernel.
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Virtual Memory with 256 Bytes of RAM
I just finished updating my C compiler and minimal CPU specification to include virtual memory. The process of adding virtual memory support to a CPU, a kernel, and a compiler toolchain has made me realize that there is a lack of good explanations for how all of these parts fit together. I also realized that a…
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Golang’s Real-Time GC in Theory and Practice
How the Golang concurrent GC achieves low latencies in real-time systems: a visualization of the algorithm and an empirical comparison with other languages.
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CockroachDB Stability Post-Mortem: From 1 Node to 100 Nodes
In August, we wrote about our concerted stability effort. Today, we've more than achieved our CockroachDB stability goal of running a 100-node cluster.
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A FreeBSD 10 Desktop How-To
A guide to a full-featured modern desktop FreeBSD installation
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Linux Container Internals
This post was the basis for a joint event with the grokking engineering community in Saigon.
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Why Rust for Low-Level Linux Programming?
I think Rust is extremely well-suited for low level Linux systems userspace programming — daemons, services, command-line tools, that sort of thing. Low-level userspace code on Linux is almos…
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GCC 6: -Wmisleading-indentation vs. “goto fail;”
Read the most recent Red Hat Developers blog content. Explore our featured monthly resource as well as our most recently published items.
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Say No to Paxos Overhead: Replacing Consensus with Network Ordering
Just say NO to Paxos overhead: replacing consensus with network ordering Li et al., OSDI 2016 Everyone knows that consensus systems such as Paxos, Viewstamped Replication, and Raft impose high over…
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Tutorial – Write a System Call
Stephen Brennan's personal website and blog.
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Power Wastage on an Idle Laptop
Ever since I upgraded to Windows 10 it’s felt like my battery life is worse. My suspicion was various scanning tasks that were springing to life more frequently, but it was just a hunch. So, …
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H265: Technical Overview
HEVC is among us. On January 25, 2013, the ITU announced the completion of the first stage approval of the H.265 video codec standard and in the last 1 year several vendors/entities have started to…
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GpuScan and SSD-To-GPU Direct DMA
An article for none-Japanese readers....What I'm recently working on is a feature to load data blocks from NVMe-SSD to GPU using peer-to-peer DMA. It allows to bypass the CPU/RAM under a series of data loading process, thus, also allows to reduce number of expensive data copy. Once data blocks are l…
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