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Make fork() go 30% faster

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This change makes fork() go nearly as fast as sys_fork() on UNIX. As for
Windows this change shaves about 4-5ms off fork() + wait() latency. This
is accomplished by using WriteProcessMemory() from the parent process to
setup the address space of a suspended process; it is better than a pipe
This commit is contained in:
Justine Tunney 2025-01-01 04:59:38 -08:00
parent 98c5847727
commit 0b3c81dd4e
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GPG key ID: BE714B4575D6E328
44 changed files with 769 additions and 649 deletions
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libc/runtime/runtime.h
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@ -95,7 +95,7 @@ int ftrace_install(void) libcesque;
int ftrace_enabled(int) libcesque;
int strace_enabled(int) libcesque;
void __print_maps(size_t) libcesque;
void __print_maps_win32(void) libcesque;
void __print_maps_win32(int64_t, const char *, size_t) libcesque;
void __printargs(const char *) libcesque;
/* builtin sh-like system/popen dsl */
int _cocmd(int, char **, char **) libcesque;