cgroup与dpdk启动

1、cgroup 下载

2、cgroup

a、cgroup是一种文件系统

b、cgroup主要用于进程资源使用的限制，避免某个进程消耗过多的cpu，memory

c、cgroup具有层级关系

3、cgroup的设置

/sys/fs/cgroup

/*将进程加入到cgroup 的全局组中*/

void inline addself_global_cgroup()

{

char* name = "/sys/fs/cgroup/cpuset/tasks";

FILE* globaltask = NULL;

globaltask = fopen(name,"a");

int pid = getpid();

//printf("pid:%d\n",pid);

if(globaltask)

{

fprintf(globaltask,"%d\n",pid);

fclose(globaltask);

}

}

Develop>./l2fwd -cf -n4 -- -p1

EAL: Detected lcore 0 as core 0 on socket 0

EAL: Detected lcore 1 as core 1 on socket 0

EAL: Detected lcore 2 as core 0 on socket 0

EAL: Detected lcore 3 as core 1 on socket 0

EAL: Support maximum 128 logical core(s) by configuration.

EAL: Detected 4 lcore(s)

EAL: Setting up physically contiguous memory...

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7b0000000000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7ffff6200000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7ffff5e00000 (size = 0x200000)

EAL: Ask a virtual area of 0x23a00000 bytes

EAL: Virtual area found at 0x7fffd2200000 (size = 0x23a00000)

EAL: Ask a virtual area of 0x23c00000 bytes

EAL: Virtual area found at 0x7fffae400000 (size = 0x23c00000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fffae000000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fffadc00000 (size = 0x200000)

EAL: Requesting 576 pages of size 2MB from socket 0

rte_eal_malloc_heap_init,232,len=2097152,pg=2097152

rte_eal_malloc_heap_init,232,len=2097152,pg=2097152

rte_eal_malloc_heap_init,232,len=2097152,pg=2097152

rte_eal_malloc_heap_init,232,len=597688320,pg=2097152

rte_eal_malloc_heap_init,232,len=599785472,pg=2097152

rte_eal_malloc_heap_init,232,len=2097152,pg=2097152

rte_eal_malloc_heap_init,232,len=2097152,pg=2097152

EAL: TSC frequency is ~1795498 KHz

EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !

EAL: pthread_setaffinity_np failed

EAL: eal_thread_init_master() call eal_thread_set_affinity() fail!

PANIC in eal_thread_init_master():

cannot set affinity

7: [./l2fwd() [0x430341]]

6: [/usr/local/lib/libc.so.6(__libc_start_main+0xec) [0x7ffff71404d8]]

5: [./l2fwd(main+0x1c) [0x430b5c]]

4: [./l2fwd(rte_eal_init+0x2cc) [0x50b6b4]]

3: [./l2fwd(eal_thread_init_master+0x56) [0x50f163]]

2: [./l2fwd(__rte_panic+0xff) [0x5120b3]]

1: [./l2fwd(rte_dump_stack+0x27) [0x511f3f]]

Aborted

解决方法：初始化时调用 addself_global_cgroup即可

启动流程中cgroup的使用