mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-30 16:28:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Make fork() go 30% faster

Browse source 
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
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
44 changed files with 769 additions and 649 deletions
Download patch file Download diff file Expand all files Collapse all files

6
libc/intrin/localtime_lock.c
View file

@ -19,7 +19,7 @@
#include "libc/thread/posixthread.internal.h"
#include "third_party/tz/lock.h"
pthread_mutex_t __localtime_lock_obj = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t __localtime_lock_obj = PTHREAD_MUTEX_INITIALIZER;
void __localtime_lock(void) {
_pthread_mutex_lock(&__localtime_lock_obj);
@ -28,3 +28,7 @@ void __localtime_lock(void) {
void __localtime_unlock(void) {
_pthread_mutex_unlock(&__localtime_lock_obj);
}
void __localtime_wipe(void) {
_pthread_mutex_wipe_np(&__localtime_lock_obj);
}