內存測試工具memtester
Memtester是用戶態工具，用於測試內存子系統的故障。非常方便，支持32位 或64位Unix-like系統。對於硬件開發開發者來說，memtester可以定位到物理地址。
1. 安裝
下載地址http://pyropus.ca/software/memtester/
獲取memtester-4.2.2.tar.gz源碼包。
#tar –zxvf memtester-4.2.2.tar.gz
#make
#make install
2.測試
./memtester [-p physaddrbase] <mem>[B|K|M|G] [loops]
其中：
Physaddrbase： 需要測試的物理地址；
<mem>[B|K|M|G]：測試內存的大小；
[loops]：測試次數
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]#
