Re: CPU Concurrency Issues

Yonghong Song

On Mon, Aug 19, 2019 at 1:54 PM <brad.lewis@...> wrote:

Hi all,

I'm trying to verify that there are no concurrency issues with an approach I'm using cpu_id as a key to a HASH_MAP. My understanding is that bcc disables preemption but the details are fuzzy and I haven't been able to find anything in the code. Can anyone shed some light on this?
preemption is a kernel thing, bcc does not disable it. You need to
check kernel configuration CONFIG_PREEMPT in your host.

Thank you,

Brad Lewis

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