1951
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 4,389 posts.
1952
Curl doesn't add libproxy due to its quality issues
curl, along with every other Internet tool with aspirations, supports proxies. A proxy is a (usually known) middle-man in a network operation; instead of going directly to the remote end server, the client goes via a proxy. curl has supported proxies since the day it was born. Which proxy? Applications that do…
1953
1954
A Primer on Database Replication (2017)
A Primer on Database Replication
1955
Kubernetes reinvented virtual machines in a good sense
How Virtual Machines were used to deploy services. What old problems containers solve and what new problems create. How Kubernetes used containers to recreate Virtual Machines in a better way?
1956
1957
Remotely unlocking an encrypted hard disk
what's a few systemd services in initramfs between friends?
1958
Gocker: Docker implemented in 1.3k lines of Go
They are popular and they are misunderstood. Containers have become the default way applications are packaged and run on servers, initially popularized by Docker. Now, Docker itself is misunderstoo…
1959
Your File System Is Already A Graph Database
Karpathy recently posted about using LLMs to build personal knowledge bases — collecting raw sources into a directory, having an LLM “compile” them into a wiki of interlinked markdown …
1960
Reducing Rust Incremental Compilation Times on macOS
How I reduced Rust incremental debug build times on macOS from 14 seconds down to 4 seconds.
1961
A fun optimization trick from rsync
From the highly eclectic blog of Mark Dominus
1962
Paul Buchheit: Make your site faster and cheaper to operate in one easy step
Is your web server using using gzip encoding ? Surprisingly, many are not. I just wrote a little script to fetch the 30 external links off n...
1963
RP2040 Boot Sequence
This document has been assembled to supplement a set of instructions about writing one's own bootloader for the RP2040. Writing a bootloader requires some understanding of the boot sequence, but it became a bit too cumbersome to include that explanation in the bootloader documentation.
1964
Running a million-board chess MMO in a single process
How one million chessboards works
1965
Scheduling Internals
Wait, but how does async even work? (Animated)
1966
JDK 20 G1/Parallel/Serial GC Changes
Yet another JDK release that is on track - JDK 20 GA is almost here . Another opportunity to summarize changes and improvements in Hotspot´s stop-the-world garbage collectors for the JDK 20 release.
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1969
How did software get so reliable without proof?
In 1996, the Turing-award-winning computer scientist C.A.R. Hoare wrote a paper with the title How Did Software Get So Reliable Without Proof? In this paper, Hoare grapples with the observation tha…
1970
Alarms in medical equipment
ISO/IEC 60601-1-8, Patterson and other alarms in medical equipment Sample Alarm Sounds - Sirens, buzzers and other sounds
1971
The potential risk to ZFS created by the shift in its userbase
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
1972
Rustgo: Calling Rust from Go with near-zero overhead (2017)
Go has good support for calling into assembly, and a lot of the fast cryptographic code in the stdlib is carefully optimized assembly, bringing speedups of over 20 times.
1973
An adventure in trying to optimize math.Atan2 with Go assembly
This is a recount of an adventure where I experimented with some Go assembly coding in trying to optimize the math.Atan2 function.
1974
Designing a Lock-free, Wait-free Hash Map
Wait-free algorithms attract vast interest and are an area of intense research, the motivation being that true lock-free algorithms and data structures provide great …
1975
1976
Improved vacuum in PostgreSQL 13
Vacuum is one of the sub-systems in PostgreSQL which gets improved with each release. I have checked past five releases and each has qu...
1977
The July Galileo Outage: What happened and why
By bert hubert / bert@hubertnet.nl This post is an excerpt of a far longer post on Galileo, its structures and the cause of the outage. Here we’ll only focus on the outage - the potential underlying reasons behind it are described in the full article. Since the week-long outage in July I’ve been fascinated by Galileo…
1978
Lost Generation: The Relay Computers
Our previous installment described the rise of automatic telephone switches, and of the complex relay circuits to control them. Now we shall see how scientists and engineers developed such relay c…
1979
The Intel 8088 processor's instruction prefetch circuitry: a look inside
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor. IBM's decision to use the 8088 processor in the I...
1980
Finding Windows HANDLE leaks, in Chromium and others
Three years ago I found a 32 GB memory leak caused by CcmExec.exe failing to close process handles. That bug is fixed, but ever since then I have had the handles column in Windows Task Manager ena…