Hi Cai,
I have a few (minor) notes:
On Fri, Jul 04, 2008 at 11:23:10AM +0800, Cai Qian wrote:
> I propose a new tool lscpu to util-linux-ng, This program gathers CPU
don't forget that a man page is required for all new tools.
> _______________________________________________________________
> | | | | | | | | |
> | cpu0 | | | | | | | |
> |______| core0 | | L1d | L1i | L2d | | |
> | | | | 16K | 16K | 256K | | |
> | cpu1 | | | | | | | |
> |______|_______| processor0 |_____|_____|______| L2i | L3 |
> | | | | | | | 1024K | 12288K |
> | cpu2 | | | | | | | |
> |______| core1 | | L1d | L1i | L2d | | |
> | | | | 16K | 16K | 256K | | |
> | cpu3 | | | | | | | |
> |______|_______|____________|_____|_____|______|_______|________|
> | | | | | | | | |
> | cpu4 | | | | | | | |
> |______| core2 | | L1d | L1i | L2d | | |
> | | | | 16K | 16K | 256K | | |
> | cpu5 | | | | | | | |
> |______|_______| processor1 |_____|_____|______| L2i | L3 |
> | | | | | | | 1024K | 12288K |
> | cpu6 | | | | | | | |
> |______| core3 | | L1d | L1i | L2d | | |
> | | | | 16K | 16K | 256K | | |
> | cpu7 | | | | | | | |
> |______|_______|____________|_____|_____|______|_______|________|
That's really nice ASCII art. People love pictures :-)
> usage()
> {
> cat <<EOF
> Usage: $0 [OPTION]
> CPU architecture information helper
>
> -p, --parse print out in parsable instead of printable format.
> -h, --help usage information
> EOF
> }
Please, read:
http://www.gnu.org/software/autoconf/manual/gettext/Preparing-Shell-Scripts.html
> arch=$(uname -m)
> # Only i686, X86_64 and IA64 are supported at the moment.
Do you plan to add any other architectures?
> # Dom0 Kernel gives wrong information.
> if grep "control_d" "/proc/xen/capabilities" >/dev/null 2>&1; then
> echo "Error: Dom0 Kernel is not supported." >&2
> exit 1
> fi
BTW, virsh(8) (command "virtsh nodeinfo") from libvirt provides basic
information about virtual HW.
> # Read through sysfs.
> syspath="/sys/devices/system"
maybe you also want to define:
cpu0path="${syspath}/cpu/cpu0"
> # Read through cpuinfo.
> vendor=$(grep -m 1 "vendor" /proc/cpuinfo | sed 's/.*: \(.*\)/\1/')
> family=$(grep -m 1 "family" /proc/cpuinfo | sed 's/.*: \(.*\)/\1/')
> model=$(grep -m 1 "model.[^n]" /proc/cpuinfo | sed 's/.*: \(.*\)/\1/')
> stepping=$(grep -m 1 "stepping" /proc/cpuinfo | sed 's/.*: \(.*\)/\1/')
> mhz=$(grep -m 1 "cpu MHz" /proc/cpuinfo | sed 's/.*: \(.*\)/\1/')
Awk lover's note:
export $(gawk '
BEGIN {FS=": "}
/^model.[^n]/ {v=$2}
/^cpu family/ {f=$2}
/^model.[^n]/ {m=$2}
/^stepping/ {s=$2}
/^cpu MHz/ {h=$2}
{ if (v && f && m && s && h) nextfile }
END {
printf "vendor=" v;
printf "family=" f;
printf "model=" m;
printf "stepping=" s;
printf "mhz=" h;
}' /proc/cpuinfo)
> level=$(cat "${syspath}/cpu/cpu0/cache/${i}/level")
> type=$(cat "${syspath}/cpu/cpu0/cache/${i}/type")
type=$(<"${syspath}/cpu/cpu0/cache/${i}/type")
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
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