diff --git a/notes/misc.md b/notes/misc.md new file mode 100644 index 0000000..6f2e2ef --- /dev/null +++ b/notes/misc.md @@ -0,0 +1,8 @@ +# 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.