Adding to above... zImage is 6MB Image is 16MB in our case.
On Wed, Jan 30, 2013 at 6:35 PM, sandeep kumar <[email protected]>wrote: > Hi Dave. > Ok > Can you tell me which thing runs faster ? > 1)Copy *zImage(compressed kernel)* from flash to Ram, jump to start, > Relocate compress kernel, uncompress it... > 2)Copy* Image(uncompressed one) *from flash to RAM and run it right > away... > > My gut feeling says second one is better, thats what i m trying to prove > here... :) > > Thanks > Sandeep. > > > > On Wed, Jan 30, 2013 at 5:55 PM, Dave Hylands <[email protected]> wrote: > >> Hey sandeep, >> >> >> >> On Wed, Jan 30, 2013 at 5:30 PM, sandeep kumar <[email protected]> >> wrote: >> > >> > Hi All >> > On ARM, Just for learning i am working on booting with uncompressed >> kernel. >> > >> > I am meddling with arch/arm/boot/compressed/head.S, and understand the >> relocation/decompression stuff through putting some logs. >> > >> > I want to check how much time it takes for kernel to relocate itself >> and how much time it takes to decompress etc., >> > >> > Is there any possibility of seeing the current time stamp here, like a >> register which keeps on counting immediately after boot.. >> >> You're essentially running at the bootloader level here. You haven't >> started the kernel so the only timers that you have are whatever your >> bootloader has setup, or whatever you want to setup yourself (bare-metal >> programming here). >> >> -- >> Dave Hylands >> Shuswap, BC, Canada >> http://www.davehylands.com >> > > > > -- > With regards, > Sandeep Kumar Anantapalli, > -- With regards, Sandeep Kumar Anantapalli,
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