Switch allocator to jemalloc (#3697)

Squashed commit of the following:

commit 974b3359f8
Merge: ac205b7ba 480309fb9
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Wed Jan 18 10:01:26 2023 +1100

    Merge remote-tracking branch 'origin/unstable' into jemalloc

commit 480309fb96
Author: aliask <aliask@gmail.com>
Date:   Tue Jan 17 05:13:49 2023 +0000

    Fix some dead links in markdown files (#3885)

    ## Issue Addressed

    No issue has been raised for these broken links.

    ## Proposed Changes

    Update links with the new URLs for the same document.

    ## Additional Info

    ~The link for the [Lighthouse Development Updates](https://eepurl.com/dh9Lvb/) mailing list is also broken, but I can't find the correct link.~

    Co-authored-by: Paul Hauner <paul@paulhauner.com>

commit b4d9fc03ee
Author: GeemoCandama <geemo@tutanota.com>
Date:   Tue Jan 17 05:13:48 2023 +0000

    add logging for starting request  and receiving block (#3858)

    ## Issue Addressed

    #3853

    ## Proposed Changes

    Added `INFO` level logs for requesting and receiving the unsigned block.

    ## Additional Info

    Logging for successfully publishing the signed block is already there. And seemingly there is a log for when "We realize we are going to produce a block" in the `start_update_service`: `info!(log, "Block production service started");
    `.  Is there anywhere else you'd like to see logging around this event?

    Co-authored-by: GeemoCandama <104614073+GeemoCandama@users.noreply.github.com>

commit 9a970ce3a2
Author: David Theodore <prodigalsonsolutions@gmail.com>
Date:   Tue Jan 17 05:13:47 2023 +0000

    add better err reporting UnableToOpenVotingKeystore (#3781)

    ## Issue Addressed

    #3780

    ## Proposed Changes

    Add error reporting that notifies the node operator that the `voting_keystore_path` in their `validator_definitions.yml` file may be incorrect.

    ## Additional Info

    There is more info in issue #3780

    Co-authored-by: Paul Hauner <paul@paulhauner.com>

commit ac205b7bab
Merge: 93457d85b bf533c8e4
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Fri Nov 25 16:32:33 2022 +1100

    Merge remote-tracking branch 'origin/unstable' into jemalloc

commit 93457d85b7
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Wed Nov 9 11:53:59 2022 +1100

    Fix cargo-udeps

commit 6c42aef1b5
Author: Michael Sproul <micsproul@gmail.com>
Date:   Tue Nov 8 19:12:19 2022 +1100

    Fixups

commit f14b87bb88
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Tue Nov 8 16:28:16 2022 +1100

    Update docs

commit 5005dc3b65
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Tue Nov 8 16:22:42 2022 +1100

    Fix lcli

commit a082ba5904
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Tue Nov 8 16:17:10 2022 +1100

    Remove check-consensus

commit 81441e9cea
Author: Michael Sproul <micsproul@gmail.com>
Date:   Tue Nov 8 15:28:11 2022 +1100

    Disable jemalloc on Windows

commit 41eac5d0c1
Author: Michael Sproul <micsproul@gmail.com>
Date:   Tue Nov 8 13:46:17 2022 +1100

    Compatibility with macOS

commit 69ecba7876
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Mon Nov 7 18:48:31 2022 +1100

    Add jemalloc support

book/src/installation-source.md

@@ -64,6 +64,7 @@ choco install protoc
 These dependencies are for compiling Lighthouse natively on Windows. Lighthouse can also run
 successfully under the [Windows Subsystem for Linux (WSL)][WSL]. If using Ubuntu under WSL, you
 should follow the instructions for Ubuntu listed in the [Dependencies (Ubuntu)](#ubuntu) section.
+
 [WSL]: https://docs.microsoft.com/en-us/windows/wsl/about
 
 ## Build Lighthouse
@@ -128,8 +129,12 @@ Commonly used features include:
 * `gnosis`: support for the Gnosis Beacon Chain.
 * `portable`: support for legacy hardware.
 * `modern`: support for exclusively modern hardware.
-* `slasher-mdbx`: support for the MDBX slasher backend (enabled by default).
+* `slasher-mdbx`: support for the MDBX slasher backend. Enabled by default.
 * `slasher-lmdb`: support for the LMDB slasher backend.
+* `jemalloc`: use [`jemalloc`][jemalloc] to allocate memory. Enabled by default on Linux and macOS.
+  Not supported on Windows.
+
+[jemalloc]: https://jemalloc.net/
 
 ## Compilation Profiles
 

book/src/merge-migration.md

@@ -58,7 +58,7 @@ supported.
 Each execution engine has its own flags for configuring the engine API and JWT. Please consult
 the relevant page for your execution engine for the required flags:
 
-- [Geth: Connecting to Consensus Clients](https://geth.ethereum.org/docs/interface/consensus-clients)
+- [Geth: Connecting to Consensus Clients](https://geth.ethereum.org/docs/getting-started/consensus-clients)
 - [Nethermind: Running Nethermind Post Merge](https://docs.nethermind.io/nethermind/first-steps-with-nethermind/running-nethermind-post-merge)
 - [Besu: Prepare For The Merge](https://besu.hyperledger.org/en/stable/HowTo/Upgrade/Prepare-for-The-Merge/)
 - [Erigon: Beacon Chain (Consensus Layer)](https://github.com/ledgerwatch/erigon#beacon-chain-consensus-layer)
@@ -203,5 +203,5 @@ guidance for specific setups.
 - [Ethereum.org: The Merge](https://ethereum.org/en/upgrades/merge/)
 - [Ethereum Staking Launchpad: Merge Readiness](https://launchpad.ethereum.org/en/merge-readiness).
 - [CoinCashew: Ethereum Merge Upgrade Checklist](https://www.coincashew.com/coins/overview-eth/ethereum-merge-upgrade-checklist-for-home-stakers-and-validators)
-- [EthDocker: Merge Preparation](https://eth-docker.net/docs/About/MergePrep/)
+- [EthDocker: Merge Preparation](https://eth-docker.net/About/MergePrep/)
 - [Remy Roy: How to join the Goerli/Prater merge testnet](https://github.com/remyroy/ethstaker/blob/main/merge-goerli-prater.md)

book/src/run_a_node.md

@@ -26,7 +26,7 @@ has authority to control the execution engine.
 Each execution engine has its own flags for configuring the engine API and JWT.
 Please consult the relevant page of your execution engine for the required flags:
 
-- [Geth: Connecting to Consensus Clients](https://geth.ethereum.org/docs/interface/consensus-clients)
+- [Geth: Connecting to Consensus Clients](https://geth.ethereum.org/docs/getting-started/consensus-clients)
 - [Nethermind: Running Nethermind & CL](https://docs.nethermind.io/nethermind/first-steps-with-nethermind/running-nethermind-post-merge)
 - [Besu: Connect to Mainnet](https://besu.hyperledger.org/en/stable/public-networks/get-started/connect/mainnet/)
 - [Erigon: Beacon Chain (Consensus Layer)](https://github.com/ledgerwatch/erigon#beacon-chain-consensus-layer)