下载地址：http://pyropus.ca/software/memtester/ 有源码安装包、deb包、rpm包等。
源码已经编译好，只要make一下就好了。
使用方法：
Usage: memtester [-p physaddrbase] <mem>[B|K|M|G] [loops]
如：
memtester 28G 3 #测试28G的内存3次。
因为系统运行和本工具运行都需要内存，所以不能把所有的内存都
测试到。可以先用free 命令查看系统剩余多少内存空间再测试。
高级点的可以用-p参数从内存地址开始测试。
memtester version 4.2.0 (64-bit) Copyright (C) 2010 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xfffffffffffff000 want 28672MB (30064771072 bytes) got 28672MB (30064771072 bytes), trying mlock ...locked. Loop 1/3: Stuck Address : testing 0memtester version 4.2.0 (64-bit) Copyright (C) 2010 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xfffffffffffff000 want 28672MB (30064771072 bytes) got 28672MB (30064771072 bytes), trying mlock ...locked. Loop 1/3: 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 8-bit Writes : ok 16-bit Writes : ok |
结果全部为OK则内存正常。