stats inactivity is set at 5 sec; seems too much

[egobillot]

stats inactivity threshold is set at 5 sec; seems too much

Inactive stats are cleared in the ebpf map

An inactive stats related to a process is a stats not updated after a given amount of time. In order to free the ebpf map entries, we clear the inactive stats as it is less likely to have concurrency of this data.
This design is a workaround to avoid non atomicity of operations on eBPF maps. The less we touch the map, the better is the atomicity (but not guaranteed)

So far the inactivity threshold is set a 5 secs. This is a bit too much.
Let's try 1 second; 1 second is already an eternity.
It will put more pressure on old stats in map:

• we will save cpu
• we do not take too many risks