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 (getConfigRef().getInt("allow_experimental_transactions", 0))
        return;
    if (explicit_tcl_query)
        throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Transactions are not supported");
    throw Exception(ErrorCodes::LOGICAL_ERROR, "Experimental support for transactions is disabled, "
                    "however, some query or background task tried to access TransactionLog. "
                    "If you have not enabled this feature explicitly, then it's a bug.");
}
void Context::initCurrentTransaction(MergeTreeTransactionPtr txn)
{
    merge_tree_transaction_holder = MergeTreeTransactionHolder(txn, false, this);
    setCurrentTransaction(std::move(txn));
}
void Context::setCurrentTransaction(MergeTreeTransactionPtr txn)
{
    assert(!merge_tree_transaction || !txn);
    assert(this == session_context.lock().get() || this == query_context.lock().get());
    merge_tree_transaction = std::move(txn);
    if (!merge_tree_transaction)
        merge_tree_transaction_holder = {};
}
MergeTreeTransactionPtr Context::getCurrentTransaction() const
{
    return merge_tree_transaction;
}
bool Context::isServerCompletelyStarted() const