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Nick Ripley

@nsrip.com
87 followers 42 following 10 posts
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Reposted by Nick Ripley
Filippo Valsorda @filippo.abyssdomain.expert · 16/02/2026
Anyway, read Russ Cox's take on AI tool use in the Go project. groups.google.com/g/golang-dev...
groups.google.com
What should we do with CLs generated by AI?
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Reposted by Nick Ripley
thepudds @thepudds.bsky.social · 14/01/2026
Related #golang PSA: Gophers often mistakenly put a -u in 'go get -u foo', when they would have been better off with just 'go get foo'. 'go get foo' says to upgrade foo itself. It's shorthand for 'go get foo@upgrade' 'go get -u foo' says to *also* upgrade all the direct and indirect deps of foo.
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Nick Ripley @nsrip.com · 31/12/2025
Used some of my time off to finish a blog post that's been in my backlog for a while: two neat concurrency patterns from the standard library which avoid goroutine leaks by design: nsrip.com/posts/gorout...
nsrip.com
Two concurrency patterns which avoid goroutine leaks
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Nick Ripley @nsrip.com · 23/11/2025
Small contribution just before the Go 1.26 freeze: go.dev/cl/610815 removes the hard-coded 100ms sleep from the CPU profiler for most platforms. This will make it more efficient and unblock deeper call stacks. As a bonus, uncovered and fixed an 8 year old bug in the profiler go.dev/cl/722940 :)
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Reposted by Nick Ripley
Go @golang.org · 29/10/2025
“The Green Tea Garbage Collector” by Michael Knyszek and Austin Clements — go.dev/blog/greenteagc #golang
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Nick Ripley @nsrip.com · 08/10/2025
blog.cloudflare.com/how-we-found... Fun post! Reminded me of a similar bug I wrote about in nsrip.com/posts/oneins...
blog.cloudflare.com
How we found a bug in Go's arm64 compiler
84 million requests a second means even rare bugs appear often. We'll reveal how we discovered a race condition in the Go arm64 compiler and got it fixed.
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Reposted by Nick Ripley
pgaultier.bsky.social @pgaultier.bsky.social · 11/09/2025
Go, SQL, and DTrace: a marriage made in heaven? New blog post! gaultier.github.io/blog/observe... #golang #dtrace #sql
gaultier.github.io
Observe live SQL queries in Go with DTrace
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pgaultier.bsky.social @pgaultier.bsky.social · 03/07/2025
Ever wondered if it’s possible to use DTrace on a Go program? Turns out it’s super easy, barely an inconvenience! gaultier.github.io/blog/an_opti... #golang #dtrace #optimization #debugging
gaultier.github.io
An optimization and debugging story with Go and DTrace
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Reposted by Nick Ripley
Michael Pratt @prattmic.com · 04/07/2025
Thanks @commaok.xyz for hosting @michael.express and I to talk about a fun bug in Go’s new Green Tea GC and the tools we used to investigate. sigpod.dev/6
sigpod.dev
Significant Bits | Read/Write/Nil with Michael Knyszek and Michael Pratt
Please read important erratum at end of these notes!Astute listeners will notice that this is the first episode in over a year. I recorded not one but two awesome interviews...and then failed to ed...
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Nick Ripley @nsrip.com · 02/07/2025
A few ways to build Go programs with a modified compiler/runtime/standard library: nsrip.com/posts/patchr... Overlays in particular are pretty cool IMO
nsrip.com
How to patch the Go toolchain
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Nick Ripley @nsrip.com · 15/05/2025
Didn't end up using this, but I thought I might need a quick way for somebody to check if one of their Go dependencies calls a specific function. This one-liner does it: go list -deps -f '{{$dir := .Dir}}{{range .GoFiles}}{{$dir}}/{{.}} {{end}}' | xargs rg foo.Bar
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Nick Ripley @nsrip.com · 29/01/2025
Got a trial Financial Times subscription, and I was reading an article when I noticed my browser was crawling, using like 160% CPU. Ran out the (awesome) Firefox profiler, turns out the page is doing hundreds of HTTP requests per second to update this little chart... yikes!
Firefox profiler UI. Once I load the article, the CPU usage pegs at 100% and I see tons of network activity.Chart of Nvidia, Nasdaq, and S&P 500 values, apparently needs to be updated hundreds of times a second
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Reposted by Nick Ripley
Michael Stapelberg 🐧🐹😺 @zekjur.bsky.social · 15/11/2024
New blog post! Debug Go core dumps with delve: export byte slices Not all bugs can easily be reproduced. Sometimes, all you have is a core dump. I had trouble figuring out how to save byte slice contents from memory into a file for further analysis with delve… michael.stapelberg.ch/posts/2024-1...
An exhibit from the MIT Museum (Core Memory Unit, Bank C (from Project Whirlwind, 1953-1959)), a core memory unit with 4 KB of capacity.
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Liz Fong-Jones (方禮真) @lizthegrey.com · 29/12/2024
Nick Ripley of @datadoghq.bsky.social wrote up something recently on our collaboration to squish bugs surfaced by frame pointer unwinding code in the Go runtime: nsrip.com/posts/clobbe...
nsrip.com
Don't clobber the frame pointer
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