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.

{
    return getRolesInfo()->enabled_roles;
}
std::shared_ptr<const EnabledRolesInfo> Context::getRolesInfo() const
{
    return getAccess()->getRolesInfo();
}
void Context::calculateAccessRights()
{
    auto lock = getLock();
    if (user_id)
        access = getAccessControl().getContextAccess(
            *user_id,
            current_roles ? *current_roles : std::vector<UUID>{},
             false,
            settings,
            current_database,
            client_info);
}
template <typename... Args>
void Context::checkAccessImpl(const Args &... args) const
{
    return getAccess()->checkAccess(args...);
}
void Context::checkAccess(const AccessFlags & flags) const { return checkAccessImpl(flags); }
void Context::checkAccess(const AccessFlags & flags, std::string_view database) const { return checkAccessImpl(flags, database); }
void Context::checkAccess(const AccessFlags & flags, std::string_view database, std::string_view table) const { return checkAccessImpl(flags, database, table); }
void Context::checkAccess(const AccessFlags & flags, std::string_view database, std::string_view table, std::string_view column) const { return checkAccessImpl(flags, database, table, column); }
void Context::checkAccess(const AccessFlags & flags, std::string_view database, std::string_view table, const std::vector<std::string_view> & columns) const { return checkAccessImpl(flags, database, table, columns); }