Memtester是用戶態(tài)工具，用于測(cè)試內(nèi)存子系統(tǒng)的故障。非常方便，支持32位 或64位Unix-like系統(tǒng)。對(duì)于硬件開(kāi)發(fā)開(kāi)發(fā)者來(lái)說(shuō)，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(cè)試
./memtester [-p physaddrbase] <mem>[B|K|M|G] [loops]
其中：
Physaddrbase： 需要測(cè)試的物理地址；
<mem>[B|K|M|G]：測(cè)試內(nèi)存的大小；
[loops]：測(cè)試次數(shù)
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]# |