Change Details

Replace current expensive, but sparse housekeeping by a single, repetive action.

- Replace current expensive, but sparse housekeeping by a lightweight, repetitive action. - Use LibAliasTime as a real global variable for central timekeeping. - Reduce number of syscalls in user space considerably. - Check for expiry before each use of a flow (housekeeping on demand)

- Replace current expensivee, but sparse housekeeping by a lightweight, but sparse housekeeping by a single,repetitive action. repetive action.- Use LibAliasTime as a real global variable for central timekeeping. - Reduce number of syscalls in user space considerably. - Check for expiry before each use of a flow (housekeeping on demand)