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Reduce recompiler output memory usage, and added multi-threading to recomp process (#128)

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* feat(recomp): Reduce recompiler output memory usage

Stream output generation, add low-memory config controls, and avoid
pathological indirect-jump switch expansion in generated C++.

Low-memory mode now avoids retaining per-instruction disassembly strings
while still emitting asm comments during output generation. Output workers
are bounded/configurable, combined output is streamed, and decoded buffers
are released after generation.

Also document the new output memory settings.

* fix(recomp): added tests for unregistered JR/JALR, updated fallback logic to cover JR/JALR, moved Rabbitizer formatting into R5900Decoder
This commit is contained in:
Sinan
2026-06-06 05:15:14 +02:00
committed by GitHub
parent 93e221feaa
commit ed8b3ebee1
10 changed files with 659 additions and 126 deletions
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ps2xRecomp/src/lib/config_manager.cpp
+20
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@@ -4,6 +4,9 @@
#include <iostream>
#include <stdexcept>
#include <sstream>
#include <algorithm>
#include <limits>
#include <thread>
namespace ps2recomp
{
@@ -29,6 +32,21 @@ namespace ps2recomp
config.ghidraMapPath = toml::find_or<std::string>(general, "ghidra_output", "");
config.outputPath = toml::find<std::string>(general, "output");
config.singleFileOutput = toml::find_or<bool>(general, "single_file_output", false);
config.lowMemoryMode = toml::find_or<bool>(general, "low_memory_mode", config.lowMemoryMode);
const int64_t configuredOutputWorkers = toml::find_or<int64_t>(
general,
"output_worker_threads",
toml::find_or<int64_t>(general, "output_worker_thread", config.outputWorkerThreads));
const int64_t clampedOutputWorkers = std::clamp<int64_t>(
configuredOutputWorkers,
0,
std::thread::hardware_concurrency() * 2);
if (configuredOutputWorkers != clampedOutputWorkers)
{
std::cerr << "Warning: output_worker_threads value " << configuredOutputWorkers
<< " is out of range; clamped to " << clampedOutputWorkers << "." << std::endl;
}
config.outputWorkerThreads = static_cast<uint32_t>(clampedOutputWorkers);
config.patchSyscalls = toml::find_or<bool>(general, "patch_syscalls", config.patchSyscalls);
config.patchCop0 = toml::find_or<bool>(general, "patch_cop0", config.patchCop0);
config.patchCache = toml::find_or<bool>(general, "patch_cache", config.patchCache);
@@ -234,6 +252,8 @@ namespace ps2recomp
general["ghidra_output"] = config.ghidraMapPath;
general["output"] = config.outputPath;
general["single_file_output"] = config.singleFileOutput;
general["low_memory_mode"] = config.lowMemoryMode;
general["output_worker_threads"] = static_cast<int64_t>(config.outputWorkerThreads);
general["patch_syscalls"] = config.patchSyscalls;
general["patch_cop0"] = config.patchCop0;
general["patch_cache"] = config.patchCache;