Hi Nathan,

On 6/14/25 9:56 AM, Nathan Bossart wrote:
I'm also genuinely curious why folks are using -O0...


Personally, I use

 -O0 -fno-omit-frame-pointer

for FlameGraph [1] investigations.

[1] https://github.com/brendangregg/FlameGraph

Best regards,
 Jesper



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