|
Hi, I'm trying to get my boot time down under 2 seconds. I have followed the steps listed at http://wiki.davincidsp.com/index.php?title=All_This_For_1_Second_Boot and this has gotten me to about 3-4 seconds. My question is that I am seeing a pause between the last output of u-boot and the first output of the kernel which seems strange to me. This pause is on the order of 1.5 seconds, which if I could eliminate would put me right where I want to be. The output is shown below. The pause I am talking about happens between "Starting kernel ..." and "Linux version 2.6.10_mv...." I am using an uncompressed kernel with virtually no options enabled, just to try and find the baseline fastest boot speed I can. Can anyone help me? ## Booting image at 80007fc0 ... Image Name: LCIS-Linux Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1132352 Bytes = 1.1 MB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK OK ## Loading Ramdisk Image at 80900000 ... Image Name: Ramdisk Image Type: ARM Linux RAMDisk Image (gzip compressed) Data Size: 700416 Bytes = 684 kB Load Address: 80900000 Entry Point: 80900000 Starting kernel ... Linux version 2.6.10_mvl401-davinci_evm-PSP_01_30_00_082 (sress...@bonneville) (gcc version 3.4.3 (MontaVista 3.4.3-25.0.104.0600975 20069 CPU: ARM926EJ-Sid(wb) [41069265] revision 5 (ARMv5TEJ) CPU0: D VIVT write-back cache CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets Machine: DaVinci EVM Memory policy: ECC disabled, Data cache writeback DM6443 MUX: initialized CLK_OUT0 Built 1 zonelists Kernel command line: mem=15M console=ttyS0,115200n8 root=/dev/ram0 ro ip=off lpj=741376 init=/bin/sh ... ... Thanks for any help, -Steve Ressler |
_______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
