Seeing this https://github.com/microsoft/perfview/commit/244560cda625e56e7d0e3aeab1cb31af2f79d8ce breaks my heart. 😂 #perf #tabsoverspaces

Not bad considering what the emulated guest is doing. #qemu #perf #arm64 #virtio #profile

Got a proof-of-concept of sitespeed.io (https://www.sitespeed.io/) working in a Gitlab CI process without having to run docker in docker and without having to use the premium-only snippet (https://docs.gitlab.com/ee/ci/testing/browser_performance_testing.html#configuring-browser-performance-testing)

Blog post coming soon!

#performance #gitlab #perf #ci

Optimize Your PHP Script
15 Tips for Better Performance: https://www.thegeekstuff.com/2014/04/optimize-php-code/ #php #perf

At the point in my website's #perf journey where I'm about to abandon the idea of #CSS frameworks altogether and write my stylesheet from scratch, including only exactly what I need 🧐

> One second is multiple billions – billions! – of executed instructions. One second is an eternity for a computer.

> Yet I sometimes wonder whether one second is the smallest unit of time most programmers think in. Do they know that you can run entire test suites in 1s and not just a single test? Do they know that one second is slow?

https://registerspill.thorstenball.com/p/allergic-to-waiting
#perf perspective

@seldo
#perf:mozilla.org room on Mozilla's matrix chat instance.
https://matrix.to/#/#perf:mozilla.org or join the server at https://chat.mozilla.org/ and search for "perf" using the compass button.

@seldo Maybe check the #perf room on Moz matrix?

If you need to do #performance #profiling across both #CentOS #Stream 8 and 9, #perf 6.x is now built for both as part of the #Hyperscale SIG!

This post is day 24 of my #100DaysToOffload challenge

https://michel-slm.name/posts/2023-06-29-perf-6-for-hyperscale/

#blog

My life since yesterday: trying to get an updated version of #perf for #CentOS #Hyperscale SIG. Finally settled on basing it on kernel-tools from #Fedora -- but once it builds fine in mock I discovered it broke in #CBS . Fun when things can't be reproduced easily locally, grr.

Luckily I can get around this by disabling an unrelated subpackage, I think, but... this definitely merits a blog post once I get around to it.

Pair programming with Dudu
#linux #perf

Optimize Your PHP Script
15 Tips for Better Performance: https://www.thegeekstuff.com/2014/04/optimize-php-code/ #php #perf

Optimize Your PHP Script
15 Tips for Better Performance: http://bit.ly/1fQdgQH #php #perf

Hey #dotnet #perf is there a way to find out if range checks are being eliminated or not #benchmarks

Hey #dotnet #perf is there a way to find out if range checks are being eliminated or not #benchmarks

@elliot @GuillaumeRossolini I’m actually going to do this for work as a side project, so no migration, and it won’t be single user, but I’ll need to derive an idea of hosting costs. Going to set up our observability product on it and get a real deep view on the infra and application performance. Really curious how one can optimize Mastodon on containerized infrastructure. #O11y #Perf #CloudNative #Chronosphere

Come and join @thorfour and me in tomorrow's instance of #LetsProfile at 3 PM UTC!

We'll be looking at troubleshooting and fixing an out-of-memory (OOM) kill a @parca user reported!

Should be a lot of fun! Also, feel free to just come and hang out and chat #observability or #perf!

See you there!

https://www.youtube.com/watch?v=QNB0OV1Yl0c

I remember years ago seeing performance comparisons that Linq methods were notably slower than doing the equivalent some other way (i.e. using a `for` loop instead of `Where()`). I wonder with all the performance improvements that have gone into .NET since, if that's still the case nowadays.

Either way, I'm still probably going to keep using those Linq methods lol

#dotnet #linq #perf

Some highlights from the perf tools updates merged for #Linux #Kernel 6.3, which where submitted by @acmel:

- Add support for retire latency feature

- Add 'perf c2c' report option to show false sharing with adjacent cachelines

- perf lock contention:
- Add -o/--lock-owner option

perf script:
- Add 'cgroup' field for 'perf script' output:

There are several other new features, be sure to check out https://git.kernel.org/torvalds/c/0df82189bc42037678fa590a77ed0116f428c90d if you are a regular #perf user. #LinuxKernel

Perf engineering with Python 3.12
https://www.petermcconnell.com/posts/perf_eng_with_py12/

#python #linux #cpython #perf #performance #flamegraph