* Kernel: Wake cores from idle directly rather than through a host thread
Right now when a core enters an idle state, leaving that idle state requires us to first signal the core's idle thread, which then signals the correct thread that we want to run on the core. This means that in a lot of cases, we're paying double for a thread to be woken from an idle state.
This PR moves this process to happen on the thread that is waking others out of idle, instead of an idle thread that needs to be woken first.
For compatibility the process has been kept as similar as possible - the process for IdleThreadLoop has been migrated to TryLeaveIdle, and is gated by a condition variable that lets it run only once at a time for each core. A core is only considered for wake from idle if idle is both active and has been signalled - the signal is consumed and the active state is cleared when the core leaves idle.
Dummy threads (just the idle thread at the moment) have been changed to have no host thread, as the work is now done by threads entering idle and signalling out of it.
This could put a bit of extra work on threads that would have triggered `_idleInterruptEvent` before, but I'd expect less work than signalling all those reset events and the OS overhead that follows. Worst case is that other threads performing these signals at the same time will have to wait for each other, but it's still going to be a very short amount of time.
Improvements are best seen in games with heavy (or very misguided) multithreading, such as Pokemon: Legends Arceus. Improvements are expected in Scarlet/Violet and TOTK, but are harder to measure.
Testing on Linux/MacOS still to be done, definitely need to test more games as this affects all of them (obviously) and any issues might be rare to encounter.
* Remove _idleThread entirely
* Use spinwait so we don't completely blast the CPU with cmpxchg
* Didn't I already do this
* Cleanup
* dotnet format style --severity info
Some changes were manually reverted.
* dotnet format analyzers --serverity info
Some changes have been minimally adapted.
* Restore a few unused methods and variables
* Silence dotnet format IDE0060 warnings
* Silence dotnet format IDE0052 warnings
* Address or silence dotnet format IDE1006 warnings
* Address dotnet format CA1816 warnings
* Address or silence dotnet format CA2208 warnings
* Address or silence dotnet format CA1806 and a few CA1854 warnings
* Address dotnet format CA2211 warnings
* Address dotnet format CA1822 warnings
* Address or silence dotnet format CA1069 warnings
* Make dotnet format succeed in style mode
* Address or silence dotnet format CA2211 warnings
* Address review comments
* Address dotnet format CA2208 warnings properly
* Make ProcessResult readonly
* Address most dotnet format whitespace warnings
* Apply dotnet format whitespace formatting
A few of them have been manually reverted and the corresponding warning was silenced
* Add previously silenced warnings back
I have no clue how these disappeared
* Revert formatting changes for while and for-loops
* Format if-blocks correctly
* Run dotnet format style after rebase
* Run dotnet format whitespace after rebase
* Run dotnet format style after rebase
* Run dotnet format analyzers after rebase
* Run dotnet format after rebase and remove unused usings
- analyzers
- style
- whitespace
* Disable 'prefer switch expression' rule
* Add comments to disabled warnings
* Fix a few disabled warnings
* Fix naming rule violation, Convert shader properties to auto-property and convert values to const
* Simplify properties and array initialization, Use const when possible, Remove trailing commas
* Start working on disabled warnings
* Fix and silence a few dotnet-format warnings again
* Run dotnet format after rebase
* Use using declaration instead of block syntax
* Address IDE0251 warnings
* Address a few disabled IDE0060 warnings
* Silence IDE0060 in .editorconfig
* Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas"
This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e.
* dotnet format whitespace after rebase
* First dotnet format pass
* Fix naming rule violations
* Fix typo
* Add trailing commas, use targeted new and use array initializer
* Fix build issues
* Fix remaining build issues
* Remove SuppressMessage for CA1069 where possible
* Address dotnet format issues
* Address formatting issues
Co-authored-by: Ac_K <acoustik666@gmail.com>
* Add GetHashCode implementation for RenderingSurfaceInfo
* Explicitly silence CA1822 for every affected method in Syscall
* Address formatting issues in Demangler.cs
* Address review feedback
Co-authored-by: Ac_K <acoustik666@gmail.com>
* Revert marking service methods as static
* Next dotnet format pass
* Address review feedback
---------
Co-authored-by: Ac_K <acoustik666@gmail.com>
