Making a parallel Rust workload 10x faster with (or without) Rayon

Re:Making a parallel Rust workload 10x faster with (or witho... by ModernMech on Tuesday December 03, 2024 @08:39PM (#42313705)

Per the article's "Using the right profiling tools", I have gone through a similar profiling journey in Rust and found this tool very useful: https://superluminal.eu/rust/

Works on Windows, has a great GUI, shows pretty flame charts, really pleasant to use. Costs money but worth it.

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Re:Making a parallel Rust workload 10x faster with (or witho... by yazzku on Tuesday December 03, 2024 @10:02PM (#42314135)

Superluminal is a sampling profiler for the most part. It works great for what it does, sure. But in the author's own words:

> So far, we’ve only used perf to record stack traces at a regular time interval. This is useful, but only scratching the surface.

For cache hits and other counters, you're gonna have to go deeper than just sampling.

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Re:Making a parallel Rust workload 10x faster with (or witho... by datadeft on Wednesday December 04, 2024 @07:50AM (#42316937)

How would you go about cache hits instead of using a sampling profiler? Would you use eBPF / BCC?

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Re:Making a parallel Rust workload 10x faster with (or witho... by freeone3000 on Wednesday December 04, 2024 @09:21AM (#42317641)

The article describes using strace and perf in the paragraph after.

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Re:Making a parallel Rust workload 10x faster with (or witho... by datadeft on Wednesday December 04, 2024 @07:48AM (#42316927)

> Superluminal is the new industry-standard profiling tool.

Never heard of it and I do a lot of performance related work. Is Superluminal really that popular?

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Re:Making a parallel Rust workload 10x faster with (or witho... by ModernMech on Wednesday December 04, 2024 @09:48AM (#42317932)

I don't think it's popular but it really worked great for me!

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Re:Making a parallel Rust workload 10x faster with (or witho... by mgoetzke on Wednesday December 04, 2024 @09:20AM (#42317629)

Sadly only for windows though

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Re:Making a parallel Rust workload 10x faster with (or witho... by msz-g-w on Friday December 06, 2024 @02:33PM (#42343375)

They are working on a Linux port.

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