Ivo Anjo

[PROF-9342] Add issue with Ruby profiler dir class to profiler FAQ

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### What does this PR do? What is the motivation? This PR adds one more issue we uncovered with the Ruby profiler to the profiler FAQ. I've also gone ahead...

Optimization opportunity: `encoded_len` gets computed twice when encoding a message

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Hey :wave:! I work at [Datadog](https://www.datadoghq.com) and we use prost in our [libdatadog](https://github.com/datadog/libdatadog) rust component. While looking at some performance profiling of our protobuf encoding, I noticed that there's quite...

Hey! Thanks a lot for harb, I'm using it to debug a few flaky tests that rely on garbage collection. I ran into a few errors when trying to compile...

[PROF-10656] Add faulting_address to crashtracker reports

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# What does this PR do? While investigating a customer crash, I found that I dearly missed having the address that caused a segfault. E.g. given this code: ```c char...

[PROF-9470] Align heap recorder cleanup with GC activity (second try)

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**Change log entry** Add setting to lower heap profiling memory use/latency by cleaning up young objects after Ruby GC **What does this PR do?** This PR adds a new mechanism...

**Is your feature request related to a problem? Please describe.** In #3015, we identified an issue where dd-trace-rb background threads calling `getaddrinfo` at the same time as a Ruby application...

Add support for enabling valgrind's fair-sched option?

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Hey :wave: Big thanks for `ruby_memcheck`. I've been setting it up to run in CI for the [`datadog`](https://github.com/datadog/dd-trace-rb) gem (the profiling stuff especially has a lot of native code). I...