[syslinux] timestamp in COM32 module

Tomas Karasek tom.to.the.k at gmail.com
Thu Sep 2 07:35:26 PDT 2010


Hello,
I am writing a simple module for measuring boot time. I would like to 
get a timestamp when syslinux is run and then pass it as kernel 
parameter and work with the timestamp later..

It seems that POXIS time.h functions are not implemented yet(?) in 
COMBOOT. I was reading this

http://www.linuxfordevices.com/c/a/Linux-For-Devices-Articles/Benchmarking-boot-latency-on-x86/

earlier today and it sounds good, but I would be really better off with 
seconds since beginning of epoch, plus I am not sure how the TSC count 
behaves on multicore.

Is there some other way to get (some kind of) timestamp in COM32 
environment besides RDTSC?

Best Regards,
Tomas Karasek




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