Official Go implementation of the Ethereum protocol

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Martin HS 9045b79bc2 metrics, cmd/geth: change init-process of metrics (#30814) ... This PR modifies how the metrics library handles `Enabled`: previously, the package `init` decided whether to serve real metrics or just dummy-types. This has several drawbacks: - During pkg init, we need to determine whether metrics are enabled or not. So we first hacked in a check if certain geth-specific commandline-flags were enabled. Then we added a similar check for geth-env-vars. Then we almost added a very elaborate check for toml-config-file, plus toml parsing. - Using "real" types and dummy types interchangeably means that everything is hidden behind interfaces. This has a performance penalty, and also it just adds a lot of code. This PR removes the interface stuff, uses concrete types, and allows for the setting of Enabled to happen later. It is still assumed that `metrics.Enable()` is invoked early on. The somewhat 'heavy' operations, such as ticking meters and exp-decay, now checks the enable-flag to prevent resource leak. The change may be large, but it's mostly pretty trivial, and from the last time I gutted the metrics, I ensured that we have fairly good test coverage. --------- Co-authored-by: Felix Lange <fjl@twurst.com>		2 months ago
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testdata	cmd, core, metrics: always report expensive metrics (#29191)	11 months ago
collector.go	metrics, cmd/geth: change init-process of metrics (#30814)	2 months ago
collector_test.go	metrics, cmd/geth: change init-process of metrics (#30814)	2 months ago
prometheus.go	metrics, cmd/geth: informational metrics (prometheus, influxdb, opentsb) (#24877)	1 year ago