Memtester是用户态工具,用于测试内存子系统的故障。非常方便,支持32位 或64位Unix-like系统。对于硬件开发开发者来说,memtester可以定位到物理地址。

  1. 安装

  下载地址http://pyropus.ca/software/memtester/

  获取memtester-4.2.2.tar.gz源码包。

#tar –zxvf memtester-4.2.2.tar.gz
#make
#make install

  2.测试

  ./memtester [-p physaddrbase] <mem>[B|K|M|G] [loops]

  其中:

  Physaddrbase: 需要测试的物理地址;

  <mem>[B|K|M|G]:测试内存的大小;

  [loops]:测试次数

  案例:

[root@RedHat memtester-4.2.2]# ./memtester -p 0x0a0000 4k 1
memtester version 4.2.2 (32-bit)
Copyright (C) 2010 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).
pagesize is 4096
pagesizemask is 0xfffff000
want 0MB (4096 bytes)
Loop 1/1:
Stuck Address       : testing   0FAILURE: possible bad address line at physical address 0x000a0000.
Skipping to next test...
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
8-bit Writes        : ok
16-bit Writes       : ok
Done.
[root@RedHat memtester-4.2.2]#