Linux 3.2 内核启动信息

Hi,TI

以下是Linux 3.2.0的启动信息的一部分

Uncompressing Linux... done, booting the kernel.

[    0.000000] Linux version 3.2.0 (lisl@QY-SVN) (gcc version 4.5.3 20110311 (prerelease) (GCC) ) #2 Wed Jun 6 10:24:27 CST 2012

[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d

[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

[    0.000000] Machine: am335xevm

[    0.000000] Memory policy: ECC disabled, Data cache writeback

[    0.000000] AM335X ES1.0 (sgx neon )

我想问下以上信息中的[    0.000000] 是什么意思，每一行都会先打印这个，能不能屏蔽。

谢谢！