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https://github.com/lucannez64/darling-lol.git
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lucannez64andClaude Opus 5.5
4370f375cd
Game process (ARAM Hexgate: 84 -> 127 FPS average, slowest stretches ~110): - Local pthread mutexes, condition variables and Mach semaphores are on by default in the game process only, with /tmp/rclol-no-local-* opt-outs. The main thread's darlingserver waits fell from 1.36 to 0.10 ms per frame. - Local semaphores: the count and the slot generation change in one compare-exchange, a destroy leaves a negative marker, the table is reset after fork, and names the table did not create go to the server. - Metal: drop identical re-binds (keyed on the Indium object, depth-stencil retained), pass blit resources by reference, and stop resetting vertex descriptors twice. - Core isolation of the main thread is opt-in (/tmp/rclol-core-isolation); it lowered FPS in its only match. - Optimized libc/libc++/Foundation overlays, AVX2 string primitives, real CPU topology and their installers and offline checks. Tools and docs: - tools/riot-match-capture: passive /proc sampler, user-space IP profiler and reports, plus a comparison against the game's netstats. - tools/riot-lsem-model and tools/riot-metal-bind-model: host models that extract the shipped code and check it. - tools/install-riot-metal-pair.sh installs Metal and Indium together. - Status, setup, testing and troubleshooting docs updated with the measured matches and the switch table; manifest file counts match the patches. Co-Authored-By: Claude Opus 5.5 <[email protected]>
118 lines
3.9 KiB
Python
118 lines
3.9 KiB
Python
#!/usr/bin/env python3
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"""Build and run the host-only CPU-topology sysctl check.
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Compiles Darling's actual sysctl_hw.c and sysctl_unspec.c against host shims
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(host /sys reads, host syscalls, sentinel Mach replies). Nothing but the
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check's own temporary flag file is written; no prefix, guest or process is
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touched.
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"""
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from pathlib import Path
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import subprocess
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project = Path(__file__).resolve().parent.parent
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folder = project / "build/logs/sysctl-cpu"
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emulation = project / "build/darling-src/src/external/xnu/darling/src/libsystem_kernel/emulation"
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headers = emulation / "include"
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alias = folder / "include/darling/emulation"
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alias.parent.mkdir(parents=True, exist_ok=True)
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if not alias.exists():
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alias.symlink_to(headers, target_is_directory=True)
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if alias.resolve() != headers.resolve():
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raise RuntimeError("Unexpected host-test header alias")
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# Minimal host shims for the guest-only headers the sources include.
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(folder / "include/sys").mkdir(parents=True, exist_ok=True)
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(folder / "include/mach").mkdir(parents=True, exist_ok=True)
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(folder / "include/sys/sysctl.h").write_text("""\
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/* Host shim: the parts of the guest <sys/sysctl.h> the checked sources use. */
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#ifndef HOST_SHIM_SYS_SYSCTL_H
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#define HOST_SHIM_SYS_SYSCTL_H
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#include <stddef.h>
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#define CTLTYPE_NODE 1
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#define CTLTYPE_INT 2
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#define CTLTYPE_STRING 3
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#define CTLTYPE_QUAD 4
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#define CTLTYPE_OPAQUE 5
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#define CTLTYPE_STRUCT 6
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#define CTL_HW 6
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#define HW_MACHINE 1
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#define HW_MODEL 2
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#define HW_NCPU 3
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#define HW_PAGESIZE 7
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#define HW_MEMSIZE 24
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#define HW_AVAILCPU 25
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#endif
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""")
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(folder / "include/mach/machine.h").write_text("""\
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/* Host shim: CPU id types for the checked sources. */
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#ifndef HOST_SHIM_MACH_MACHINE_H
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#define HOST_SHIM_MACH_MACHINE_H
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typedef int cpu_type_t;
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typedef int cpu_subtype_t;
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typedef int cpu_threadtype_t;
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#endif
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""")
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(folder / "include/mach/mach_init.h").write_text("""\
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/* Host shim: Mach init types and calls for the checked sources. */
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#ifndef HOST_SHIM_MACH_MACH_INIT_H
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#define HOST_SHIM_MACH_MACH_INIT_H
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#include <stdint.h>
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typedef int kern_return_t;
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typedef unsigned int mach_port_t;
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typedef unsigned int mach_port_name_t;
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typedef mach_port_t ipc_space_t;
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mach_port_t mach_host_self(void);
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mach_port_t mach_task_self(void);
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#endif
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""")
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(folder / "include/mach/host_info.h").write_text("""\
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/* Host shim: HOST_BASIC_INFO as the checked source reads it. */
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#ifndef HOST_SHIM_MACH_HOST_INFO_H
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#define HOST_SHIM_MACH_HOST_INFO_H
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#include <stdint.h>
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#include <mach/machine.h>
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typedef int integer_t;
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typedef unsigned int mach_msg_type_number_t;
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typedef integer_t* host_info_t;
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typedef int host_flavor_t;
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#define HOST_BASIC_INFO 1
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#define HOST_BASIC_INFO_COUNT 8
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struct host_basic_info {
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integer_t avail_cpus;
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integer_t max_cpus;
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cpu_type_t cpu_type;
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cpu_subtype_t cpu_subtype;
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cpu_threadtype_t cpu_threadtype;
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integer_t physical_cpu;
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integer_t physical_cpu_max;
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integer_t logical_cpu;
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integer_t logical_cpu_max;
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uint64_t max_mem;
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};
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#endif
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""")
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flag = "/tmp/rclol-fixed-cpu-count.host-check"
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binary = folder / "host-sysctl-cpu-check"
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sources = [
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project / "tools/riot-host-sysctl-cpu-check.c",
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emulation / "src/xnu_syscall/bsd/helper/misc/sysctl_hw.c",
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emulation / "src/xnu_syscall/bsd/helper/misc/sysctl_unspec.c",
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]
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subprocess.run(["cc", "-std=gnu11", "-O2", "-Wall", "-Wno-unused-function",
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"-I", str(folder / "include"),
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'-DDARLING_CPU_FIXED_FLAG="' + flag + '"',
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*[str(source) for source in sources], "-o", str(binary)], check=True)
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print("Built", binary)
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# Each mode is its own process: the topology probe caches once per process.
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subprocess.run([str(binary)], check=True)
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subprocess.run([str(binary), "affinity"], check=True)
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subprocess.run([str(binary), "no-detect"], check=True)
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Path(flag).unlink(missing_ok=True)
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Path(flag).write_text("")
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try:
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subprocess.run([str(binary), "optout"], check=True)
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finally:
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Path(flag).unlink(missing_ok=True)
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