terraform-provider-rollbar VS QEMU

Rollbar is a real-time error tracking and monitoring tool that empowers development teams to deliver top-notch software. Its primary mission is to identify, report, and aggregate errors, exceptions, and issues in your applications as they happen, allowing developers to address them promptly. Rollbar assists developers in maintaining the best quality of software throughout the development process by offering detailed information as well as alerts.

Usually you would use a tool like Sentry or Rollbar to catch and report errors. Those tools improve developer experience, however we should also think about user experience — and there is a way to make it more pleasant. What if when your users experience an error, we display a typeform to collect additional feedback from the user?

Rollbar | https://rollbar.com | Budapest | Design

About Rollbar:

* We're a ~45-person team (SF, Barcelona, Budapest, and remote) with a mission to help developers build software quickly and painlessly

* We help tens of thousands of developers find and fix errors faster.

* Our backend handles billions of errors with low latency and high reliability

* Our front-end allows developers to discover and drill down across millions of errors in real-time

* Our customers are some of the best engineering teams in the world, including Twilio, Duolingo, Salesforce, and Twitch

* Our values are honesty, transparency, pragmatism, and dependability

We're currently hiring for:

- Senior UI/UX Designer / Visual Designer

Please apply via: https://rollbar.com/jobs

This week, as a relevant anecdote, we saw some notifications from Rollbar that showed us something was wrong with a new feature. We managed to get a coverage report for a single module of our code (took a little while), and we saw that the bugs identified in Rollbar were actually not covered by tests.

check out rollbar.com was a life saver for me

Rollbar, another great alternative which is quite popular with enterprise companies.

Rollbar

For logging errors from my app I am using https://rollbar.com/ (also currently free) and I may try to integrate rollbar with my status page ('Elevated error rates' kind of thing triggers an incident) at some point.

Rollbar | https://rollbar.com | San Francisco, Barcelona, Budapest ONSITE or REMOTE | Engineering, Customer Success

About Rollbar:

* We're an ~80-person team (SF, Barcelona, Budapest, and remote) with a mission to help developers build software quickly and painlessly

* We help tens of thousands of developers find and fix errors faster.

* Our backend handles billions of errors with low latency and high reliability

* Our front-end allows developers to discover and drill down across millions of errors in real-time

* Our open source libraries are used by some of the best engineering teams in the world, including Twilio, Affirm, Salesforce, and Twitch

We're currently hiring for:

- Senior Data Engineer

- Senior Customer Success Manager

- Senior Technical Account Manager

Please apply via: https://rollbar.com/jobs

Exception notifiers like Sentry or Rollbar or ‘anything that suits you’.

My most-wanted QEMU feature: https://github.com/qemu/qemu/commit/a2260983c6553

Using `gic-version=3` on macOS you can now use more than 8 cores on ARM chips.

A better solution is just to write a plain ass shell script that tests if various C snippets compile.

https://github.com/oilshell/oil/blob/master/configure

https://github.com/oilshell/oil/blob/master/build/detect-pwe...

Not an unholy mix of m4, shell, and C, all in the same file.

---

These are the same style as a the configure scripts that Fabrice Bellard wrote for tcc and QEMU.

They are plain ass shell scripts, because he actually understands the code he writes.

https://github.com/qemu/qemu/blob/master/configure

https://github.com/TinyCC/tinycc/blob/mob/configure

OCaml’s configure script is also “normal”.

You don’t have to copy and paste thousands of lines of GNU stuff that you don’t understand.

(copy of lobste.rs comment)

Related:

A fast Pascal (Delphi) WebAssembly interpreter:

https://github.com/marat1961/wasm

WASM-4:

https://github.com/aduros/wasm4

Curated list of awesome things regarding WebAssembly (wasm) ecosystem:

https://github.com/mbasso/awesome-wasm

Also, it would be nice if there was a WASM (soft) CPU for QEMU, which (if it existed!) would go here:

https://github.com/qemu/qemu/tree/master/target

> architectural registers are always updated

In tiny code, the guest registers (global TCG variables) are stored in the host's registers until you either call an helper which can access the CPU state or you return (`git grep la_global_sync`). This is the reason why QEMU is not so terribly slow.

But after a check, this also happens when you access the guest memory address space! https://github.com/qemu/qemu/blob/master/include/tcg/tcg-opc... (TCG_OPF_SIDE_EFFECTS is what matters)

But still, in the end, it's the same problem. What QEMU does, can be done in LLVM too. You could probably be more efficient in LLVM by using the exception handling mechanism (invoke and friends) to only serialize back to memory when there's an actual exception, at the cost of higher register pressure. More or less what we do here: https://rev.ng/downloads/bar-2019-paper.pdf

Um, in case you don't know, UTM (based on QEMU) is out for quite a while.

Some of these tools include Oracle VM VirtualBox (that I've used since before the acquisition of Sun Microsystems by Oracle), VMWare Workstation Player, and QEMU, but last year, I found out about Multipass.

For C/C++ projects that use meson as the build system, there is an excellent way to manage dependencies:

https://mesonbuild.com/Wrapdb-projects.html

https://mesonbuild.com/Wrap-dependency-system-manual.html

meson will download and build the libraries automatically and give you a variable which you pass as a regular dependency into the built target:

https://github.com/qemu/qemu/tree/005ad32358f12fe9313a4a0191...

https://github.com/harfbuzz/harfbuzz/tree/main/subprojects

https://github.com/harfbuzz/harfbuzz/blob/37457412b3212463c5...

Or, if you're using proper operating systems, they're managed by the usual package manager, just like everything else.

For all the users of the Linux platform, QEMU is the VM that you should go for. This software comes without any price tag and works as an emulator of various machines with utmost ease and completion; the software uses dynamic translations to emulate hardware peripherals and enhances its overall performance. If you are using QEMU as a virtualizer, then it will function exactly like the host system (provided you have the right set of hardware).

In this tutorial, we set up macOS and Windows virtual machines on UTM, a macOS application that provides a GUI wrapper for QEMU, a powerful open-source emulator and virtualizer. UTM allows you to easily manage and run virtual machines without memorizing complex commands. It also has special handling for macOS, making it simpler to install compared to other virtual machine software.