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Let's talk about vDSO.

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Philippe Pittoli 2025-09-26 18:46:32 +02:00
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# vDSO (7) - virtual (ELF) dynamic shared object
This library replaces some syscalls in order to get values from shared
memory pages between all applications, preventing context switches and
improving overall performances.
Example: current time is the same for all applications, thus the time
is written in a shared memory space that all applications can access at
any time without sending a request to the kernel.