breadcrumbs instrument log.debug() even when the logging level is info

[lucas-sonnabend]

I noticed in on of our applications that 5% of the CPU time is spend in _record_log_breadcrumb, called from logging.debug, even though our logging level is not that high.

It would be helpful if the instrumentation would respect the logging level, so if the level is INFO then only messages from that level or higher are instrumented.

This is rather annoying because from my understanding debug logging should be allowed to affect performance because it is only used for development. Anything that instruments logging should respect that behaviour

[pvalsecc]

I actually love this feature. Being able to see debug logs in case of error is very interesting. Please make this configurable.