读写操作之间的联系是一件不太好做的事情,原因其实就是Grace period(宽限期),内核中的做法[1]非常优雅,不但简单,直观,而且对用户代码的侵入性也很低,其在rcu_read_lock和rcu_read_unlock接口中分别关开中断,这样使得读操作临界区中不发生上下文切换,这样对于写操作来说,只要每个核都经历过一次上下文切换就可以退...
(4).编译 [root@localhost userspace-rcu]# make Making all in include make[1]: Entering directory `/home/userspace-rcu/include' (CDPATH="${ZSH_VERSION+.}:" && cd .. && /bin/sh /home/userspace-rcu/config/missing --run autoheader) rm -f stamp-h1 touch config.h.in cd .. && /...
The APIs provided by Userspace RCU are, by prefix: rcu_: Read-Copy Update (see doc/rcu-api.md) cmm_: Concurrent Memory Model caa_: Concurrent Architecture Abstraction cds_: Concurrent Data Structures (see doc/cds-api.md) uatomic_: Userspace Atomic (see doc/uatomic-api.md) Quick start...
Breadcrumbs userspace-rcu /doc / rcu-api.mdTop File metadata and controls Preview Code Blame 273 lines (195 loc) · 7.45 KB Raw Userspace RCU API by Mathieu Desnoyers and Paul E. McKenney API void rcu_init(void); This must be called before any of the following functions are invoked....
User-space RCU: Memory-barrier menagerie [LWN.net] file:///C:/Users/John/Desktop/内存/User-space RCU Memory-barrier menagerie [LWN... Weekly edition Archives Kernel Calendar Security Subscribe Distributions Write for LWN Contact Us LWN.net FAQ Search Sponsors User-space RCU: Memory-barrier mena...
The APIs provided by Userspace RCU are, by prefix: rcu_: Read-Copy Update (see doc/rcu-api.md) cmm_: Concurrent Memory Model caa_: Concurrent Architecture Abstraction cds_: Concurrent Data Structures (see doc/cds-api.md) uatomic_: Userspace Atomic (see doc/uatomic-api.md) Quick start...
2023-02-14 Userspace RCU 0.14.0 * Fix: urcu-bp: only teardown call-rcu worker in destructor * Fix: rculfhash: urcu_die() takes positive error value * Fix: call_rcu: teardown default call_rcu worker on application exit * Fix: join worker thread in call_rcu_data_free ...
(/home/antipov/userspace-rcu/doc/examples/urcu-flavors/bp+0x40111d) ../include/urcu/static/urcu-bp.h:189:2: runtime error: member access within misaligned address 0x7fcac376a020 for type 'struct urcu_bp_reader', which requires 128 byte alignment ...
userspace-rcu/src/urcu-bp.c:363 > #2 0x4017d5 in main > /home/antipov/userspace-rcu/doc/examples/urcu-flavors/bp.c:92 > #3 0x7fcac2bc2041 in __libc_start_main ../csu/libc-start.c:308 > #4 0x40111d in _start > (/home/antipov/userspace-rcu/doc/examples/urcu-flavors/bp...
读写操作之间的联系是一件不太好做的事情,原因其实就是Grace period(宽限期),内核中的做法[1]非常优雅,不但简单,直观,而且对用户代码的侵入性也很低,其在rcu_read_lock和rcu_read_unlock接口中分别关开中断,这样使得读操作临界区中不发生上下文切换,这样对于写操作来说,只要每个核都经历过一次上下文切换就可以退...