| libthr.3 (82aa34e6fa1cd5a4ad401383522daf51412ea4b2) | libthr.3 (4992013f8f8ab9d5bb5f31edb0f98d681d671d5d) |
|---|---|
| 1.\" Copyright (c) 2005 Robert N. M. Watson 2.\" Copyright (c) 2014,2015 The FreeBSD Foundation, Inc. 3.\" All rights reserved. 4.\" 5.\" Part of this documentation was written by 6.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship 7.\" from the FreeBSD Foundation. 8.\" --- 104 unchanged lines hidden (view full) --- 113is not executed. 114This is controlled by the 115.Ev LIBPTHREAD_YIELDLOOPS 116environment variable. 117.Pp 118If both the spin and yield loops 119failed to acquire the lock, the thread is taken off the CPU and 120put to sleep in the kernel with the | 1.\" Copyright (c) 2005 Robert N. M. Watson 2.\" Copyright (c) 2014,2015 The FreeBSD Foundation, Inc. 3.\" All rights reserved. 4.\" 5.\" Part of this documentation was written by 6.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship 7.\" from the FreeBSD Foundation. 8.\" --- 104 unchanged lines hidden (view full) --- 113is not executed. 114This is controlled by the 115.Ev LIBPTHREAD_YIELDLOOPS 116environment variable. 117.Pp 118If both the spin and yield loops 119failed to acquire the lock, the thread is taken off the CPU and 120put to sleep in the kernel with the |
| 121.Xr umtx 2 | 121.Xr _umtx_op 2 |
| 122syscall. 123The kernel wakes up a thread and hands the ownership of the lock to 124the woken thread when the lock becomes available. 125.Sh THREAD STACKS 126Each thread is provided with a private user-mode stack area 127used by the C runtime. 128The size of the main (initial) thread stack is set by the kernel, and is 129controlled by the --- 101 unchanged lines hidden (view full) --- 231This should be taken into account when interpreting 232.Xr ktrace 1 233logs. 234.Sh SEE ALSO 235.Xr ktrace 1 , 236.Xr ld-elf.so.1 1 , 237.Xr getrlimit 2 , 238.Xr errno 2 , | 122syscall. 123The kernel wakes up a thread and hands the ownership of the lock to 124the woken thread when the lock becomes available. 125.Sh THREAD STACKS 126Each thread is provided with a private user-mode stack area 127used by the C runtime. 128The size of the main (initial) thread stack is set by the kernel, and is 129controlled by the --- 101 unchanged lines hidden (view full) --- 231This should be taken into account when interpreting 232.Xr ktrace 1 233logs. 234.Sh SEE ALSO 235.Xr ktrace 1 , 236.Xr ld-elf.so.1 1 , 237.Xr getrlimit 2 , 238.Xr errno 2 , |
| 239.Xr umtx 2 , | 239.Xr _umtx_op 2 , |
| 240.Xr dlclose 3 , 241.Xr dlopen 3 , 242.Xr getenv 3 , 243.Xr pthread_attr 3 , 244.Xr pthread_attr_setstacksize 3 , 245.Xr pthread_create 3 , 246.Xr signal 3 , 247.Xr atomic 9 --- 13 unchanged lines hidden --- | 240.Xr dlclose 3 , 241.Xr dlopen 3 , 242.Xr getenv 3 , 243.Xr pthread_attr 3 , 244.Xr pthread_attr_setstacksize 3 , 245.Xr pthread_create 3 , 246.Xr signal 3 , 247.Xr atomic 9 --- 13 unchanged lines hidden --- |