I have ClickHouse server running in virtual environment that reports the following warning:

```
# clickhouse-client
ClickHouse client version 22.7.2.15 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 22.7.2 revision 54457.

Warnings:
 * Linux is not using a fast TSC clock source. Performance can be degraded. Check /sys/devices/system/clocksource/clocksource0/current_clocksource

# cat /sys/devices/system/clocksource/clocksource0/current_clocksource
kvm-clock
```

It looks like a false positive as kvm-clock is considered a preferable clock source for kvm-based VMs.
https://opensource.com/article/17/6/timekeeping-linux-vms

Regardless of whether it's a bug or not, I'd like to have some mechanism that allows to disable particular warnings. There are may be other questionable warnings in the future.

{
        if (shutdown_called)
            return;
        shutdown_called = true;
        
        
        
        if (external_dictionaries_loader)
            external_dictionaries_loader->enablePeriodicUpdates(false);
        if (external_user_defined_executable_functions_loader)
            external_user_defined_executable_functions_loader->enablePeriodicUpdates(false);
        if (external_models_loader)
            external_models_loader->enablePeriodicUpdates(false);
        Session::shutdownNamedSessions();
        
        if (backups_worker)