python填充linux内存80%

1、使用两个Python脚本文件，分别是test.py和mem_rate.py。

2、其功能分别是查看当前内存占用和动态设定内存占用百分比。即可将Linux内存填充80%。

以下程序可以填充文件后面全部为0xff到指定大小.

test.c

#include <stdio.h>

/*

* Return: 0, OK

* -1, Fail

*/

unsigned long int appendFile(char *destFilePath, unsigned long int appendLength)

{

unsigned char tmpBuf[1024]

int i = 0

FILE *fp

for(i = 0i <1024i++)

{

tmpBuf[i] = 0xFF

}

if ((fp = fopen(destFilePath, "ab+"))==NULL)

{

printf("Can not open file %s \n", destFilePath)

return -1

}

while(appendLength >0)

{

if (appendLength <= 1024)

{

fwrite(tmpBuf, sizeof(char), appendLength, fp)

appendLength -= appendLength

}

else

{

fwrite(tmpBuf, sizeof(char), 1024, fp)

appendLength -= 1024

}

}

fclose(fp)

return 0

}

#define SRC_FILE "./file1.bin"

#define DEST_FILE "./file2.bin"

void main(void)

{

unsigned long int totalLength = (85504 - 13824) * 1024

unsigned long int fileLength = 57751552

unsigned long int appendLength = totalLength - fileLength

appendFile(DEST_FILE, appendLength)

}

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