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.

{
    auto lock = getLock();
    return shared->config ? *shared->config : Poco::Util::Application::instance().config();
}
AccessControl & Context::getAccessControl()
{
    return *shared->access_control;
}
const AccessControl & Context::getAccessControl() const
{
    return *shared->access_control;
}
void Context::setExternalAuthenticatorsConfig(const Poco::Util::AbstractConfiguration & config)
{
    auto lock = getLock();
    shared->access_control->setExternalAuthenticatorsConfig(config);
}
std::unique_ptr<GSSAcceptorContext> Context::makeGSSAcceptorContext() const
{
    auto lock = getLock();
    return std::make_unique<GSSAcceptorContext>(shared->access_control->getExternalAuthenticators().getKerberosParams());
}
void Context::setUsersConfig(const ConfigurationPtr & config)
{
    auto lock = getLock();
    shared->users_config = config;
    shared->access_control->setUsersConfig(*shared->users_config);
}
ConfigurationPtr Context::getUsersConfig()