我在我的板子上测试了一下mini2440对sd卡的写入速度,结果发现很慢,如下所示,每秒才80k byte,请问各位的测试结果都是这么慢吗?
[root@tina /sdcard]# time dd if=/dev/zero of=test bs=1024 count=5000
5000+0 records in
5000+0 records out
real 1m 1.36s
user 0m 0.14s
sys 0m 3.28s
[root@tina /sdcard]# expr 5000 / 60
83
[root@tina /sdcard]# uname -a
Linux tina 2.6.29.4-FriendlyARM #2 Thu Jun 18 23:37:50 CST 2009 armv4tl unknown
[root@tina /sdcard]#