Miroslav Lichvar d91ae2094f configure: disable arc4random on Linux ...

In glibc 2.36 was added the arc4random family of functions. However,
unlike on other supported systems, it is not a user-space PRNG
implementation. It just wraps the getrandom() system call with no
buffering, which causes a performance loss on NTP servers due to
the function being called twice for each response to add randomness
to the RX and TX timestamp below the clock precision.

Don't check for arc4random on Linux to keep using the buffered
getrandom().

2022-08-03 15:23:38 +02:00

32 KiB

Executable File

Raw Blame History

View Raw