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 process_list_elem;
}
void Context::setUncompressedCache(size_t max_size_in_bytes, const String & uncompressed_cache_policy)
{
    auto lock = getLock();
    if (shared->uncompressed_cache)
        throw Exception("Uncompressed cache has been already created.", ErrorCodes::LOGICAL_ERROR);
    shared->uncompressed_cache = std::make_shared<UncompressedCache>(max_size_in_bytes, uncompressed_cache_policy);
}
UncompressedCachePtr Context::getUncompressedCache() const
{
    auto lock = getLock();
    return shared->uncompressed_cache;
}
void Context::dropUncompressedCache() const
{
    auto lock = getLock();
    if (shared->uncompressed_cache)
        shared->uncompressed_cache->reset();
}
void Context::setMarkCache(size_t cache_size_in_bytes, const String & mark_cache_policy)
{
    auto lock = getLock();
    if (shared->mark_cache)
        throw Exception("Mark cache has been already created.", ErrorCodes::LOGICAL_ERROR);
    shared->mark_cache = std::make_shared<MarkCache>(cache_size_in_bytes, mark_cache_policy);
}
MarkCachePtr Context::getMarkCache() const