> Here's a little patch which is useful for showing timing information for > kernel bootup activities. > > This patch adds a new Kconfig option under "Kernel Hacking" and a new > option for the kernel command line. It also provides a script for > showing delta information.
I'm seeing some odd output with CONFIG_PRINTK_TIME=y during boot. When it is set to "no", I see this from "dmesg": Total of 4 processors activated (7168.96 BogoMIPS). CPU0 attaching sched-domain: domain 0: span f groups: 1 2 4 8 CPU1 attaching sched-domain: domain 0: span f groups: 2 4 8 1 CPU2 attaching sched-domain: domain 0: span f groups: 4 8 1 2 CPU3 attaching sched-domain: domain 0: span f groups: 8 1 2 4 Setting CONFIG_PRINTK_TIME=y I see (the "<NUL>" pieces are actually each a single ASCII '\0' character): [ 0.240887] Total of 4 processors activated (7168.96 BogoMIPS). [ 0.240926] CPU0 attaching sched-domain: [ 0.240930] <NUL>PU0 attaching sched-domain: [ 0.240933] domain 0: span f [ 0.240967] <NUL> f [ 0.240969] groups: 1 2 4 8 [ 0.241024] CPU1 attaching sched-domain: [ 0.241027] <NUL>PU1 attaching sched-domain: [ 0.241030] domain 0: span f [ 0.241063] <NUL> f [ 0.241065] groups: 2 4 8 1 [ 0.241146] CPU2 attaching sched-domain: [ 0.241149] <NUL>PU2 attaching sched-domain: [ 0.241151] domain 0: span f [ 0.241186] <NUL> f [ 0.241188] groups: 4 8 1 2 [ 0.241267] CPU3 attaching sched-domain: [ 0.241270] <NUL>PU3 attaching sched-domain: [ 0.241273] domain 0: span f [ 0.241307] <NUL> f [ 0.241309] groups: 8 1 2 4 At first I thought that the lines that begin with whitespace were causing the confusion, but there are other lines during boot that are ok. [This is on an ia64 system ... but these messages come from generic kern/sched.c] -Tony - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/