mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-03 17:58:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

4
libc/intrin/wintlsinit.c
View file

@ -35,8 +35,8 @@ textwindows dontinstrument void __bootstrap_tls(struct CosmoTib *tib,
tib->tib_self = tib;
tib->tib_self2 = tib;
tib->tib_sigmask = -1;
tib->tib_strace = __strace;
tib->tib_ftrace = __ftrace;
tib->tib_strace = -100;
tib->tib_ftrace = -100;
tib->tib_sigstack_size = 57344;
tib->tib_sigstack_addr = bp - 57344;
int tid = __imp_GetCurrentThreadId();