mem内存测试

下载源码：  http://pyropus.ca/software/memtester/old-versions/memtester-4.2.2.tar.gz

linux下移植参考：

https://blog.csdn.net/vc66vcc/article/details/56009538

android下移植参考：

http://blog.csdn.net/csh86277516/article/details/52584390

https://blog.csdn.net/dkbdkbdkb/article/details/79196563

编译生成memtester可执行bin文件：

# ./memtester 10M 1
memtester version 4.2.2 (64-bit)
Copyright (C) 2010 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 4096
pagesizemask is 0xfffffffffffff000
want 10MB (10485760 bytes)
got  10MB (10485760 bytes), trying mlock ...locked.
Loop 1/1:
  Stuck Address       : ok         
  Random Value        : ok
  Compare XOR         : ok
  Compare SUB         : ok
  Compare MUL         : ok
  Compare DIV         : ok
  Compare OR          : ok
  Compare AND         : ok
  Sequential Increment: ok
  Solid Bits          : ok         
  Block Sequential    : ok         
  Checkerboard        : ok         
  Bit Spread          : ok         
  Bit Flip            : ok         
  Walking Ones        : ok         
  Walking Zeroes      : ok         

Done.

#/bin/sh

ok_num=$(/data/local/tmp/memtester 10M 1 | grep "ok" | wc -l)
if [ $ok_num = 16 ];then
    echo "test mem success"
else
    echo "test mem failed"
fi

执行sh脚本，获取memtester测试内存的结果。