Dear Rajashaker
welcome to coreboot!
Am Donnerstag, den 23.04.2015, 11:03 +0800 schrieb rajashaker Goud:
I can see the CONFIG_COLLECT_TIMESTAMPS macro in the source of coreboot, but am unable to get the clear picture of it.
if you select this option, build a coreboot based image and boot to GNU/Linux, you can read the time stamps with `sudo cbmem -t`.
$ cd util/cbmem $ make $ sudo ./cbmem -t
I want to collect all the timestamps of the drivers and to find out BOOT TIME.
What board do you use? Note, AMD AGESA boards currently do *not* support storing romstage time stamps, so they cannot be read out and are lost during the boot.
Also remember that the payloads, at least GRUB 2, SeaBIOS and FILO, do not write store time stamps in CBMEM.
There is also timing information, which coreboot only puts in its console log (`sudo ./cbmem -c`).
Search for *BS:* and *usec* for example.
Please report back, if that helped you.
Thanks,
Paul
PS: The official spelling of the project name is *coreboot*, that means it’s one word.