虚拟机linux 怎么支持多核

发布网友 发布时间：2022-04-20 05:52

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共2个回答

热心网友 时间：2023-07-10 21:09

1.关闭当前的虚拟机，更改配置虚拟机一定要处在当前虚拟机关机状态。

2。击编辑虚拟机设置。

热心网友 时间：2023-07-10 21:09

#define _GNU_SOURCE
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

#define handle_error_en(en, msg) \
do { errno = en; perror(msg); exit(EXIT_FAILURE); } while (0)

int
main(int argc, char *argv[])
{
int s, j;
cpu_set_t cpuset;
pthread_t thread;

thread = pthread_self();

/* Set affinity mask to include CPUs 0 to 4 */

CPU_ZERO(&cpuset);
for (j = 0; j < 4; j++)
CPU_SET(j, &cpuset);

s = pthread_setaffinity_np(thread, sizeof(cpu_set_t), &cpuset);
if (s != 0)
handle_error_en(s, "pthread_setaffinity_np");

/* Check the actual affinity mask assigned to the thread */

s = pthread_getaffinity_np(thread, sizeof(cpu_set_t), &cpuset);
if (s != 0)
handle_error_en(s, "pthread_getaffinity_np");

printf("Set returned by pthread_getaffinity_np() contained:\n");
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
printf(" CPU %d\n", j);

exit(EXIT_SUCCESS);
}