On Windows, the default thread stack size is read from the binary (java.exe). As of Java SE 6, this value is 320k in the 32-bit VM and 1024k in the 64-bit VM. You can reduce your stack size by running with the -Xss option. For example: java -server -Xss64k Note that on s...
__thread int count = 2222; __thread unsigned long long count2 ; static __thread int count3; void echomsg(char* string) { printf("destructor excuted in thread %x,address (%p) param=%s\n",pthread_self(),string,string); free(string); } void * child1(void *arg) { int b; int tid...
MPOL_LOCAL（默认）与 MPOL_DEFAULT 相似，也是优先在本地节点分配，当分配失败时去其他节点分配内存。...
limit = getlimit(RLIMIT_STACK) if (limit == RLIMIT_INFINITY) thread.rlimit = ARCH_STACK_DEFAULT_SIZE //2M else if thread.rlimit < PTHREAD_STACK_MIN //16k thread.rlimit = PTHREAD_STACK_MIN 可以看出,线程默认栈大小和进程栈大小的关系: 如果ulimit(setrlimit)设置大小大于16k,则线程栈默认大小由u...
action->thread_fn)) { warn_no_thread(irq, action); break; } /* 唤醒线程 */ __irq_wake_thread(desc, action); /* Fall through to add to randomness */ case IRQ_HANDLED: flags |= action->flags; break; default: break; } retval |= res; /* 下一个中断服务例程 */ action = ...
在前边《5.1 内核如何划分用户态和内核态虚拟内存空间》小节中我们提到,内核在/arch/x86/include/asm/page_32_types.h文件中通过 TASK_SIZE 将进程虚拟内存空间和内核虚拟内存空间分割开来。 /* * User space process size: 3GB (default). */#defineTASK_SIZE__PAGE_OFFSET ...
* User space process size: 3GB (default). */#defineTASK_SIZE__PAGE_OFFSET 如下图所示:__PAGE_OFFSET 的值在 32 位系统下为 0xC000 000。 /arch/arm/Kconfig.png 而在64 位系统中,只使用了其中的低 48 位来表示虚拟内存地址。其中用户态虚拟内存空间为低 128 T,虚拟内存地址范围为:0x0000 0000 00...
Options:-p, --pid find out the highest cpu consumed threads from the specifed java process,default from all java process.-c, --count set the thread count to show, default is 5-h, --help display this help and exitEOFexit $1}
gp - 全局指针寄存器 – 为何gp指向init_thread_union? 首先gp为全局指针寄存器(x86中并没有此寄存器,而是用ss和sp来做处理,为何没有呢,据我所知应该是x86的cpu寄存器太少的缘故,故而没有专门设置这样的寄存器(这里请熟悉x86的朋友指正),他的作用就是在进程切换的时候保存当前进程的thread_info指针到当前gp中!
task_group.rt_rq=(struct rt_rq**)ptr;ptr+=nr_cpu_ids*sizeof(void**);#endif /* CONFIG_RT_GROUP_SCHED */#ifdef CONFIG_CPUMASK_OFFSTACKfor_each_possible_cpu(i){ per_cpu(load_balance_mask,i)=(void*)ptr;ptr+=cpumask_size();}#endif /* CONFIG_CPUMASK_OFFSTACK */}/* 初始化...