Re: [dts] [PATCH 2/9] framework: platform independent cpu info parsing

["Xu, HuilongX" <huilongx.xu@intel.com>]

Hi yong,
Yocto is a embedded os, so it not include rpm package tools.
I can't install lscpu in it, except rebuild yocto image. 
Thanks a lot
> -----Original Message-----
> From: Liu, Yong
> Sent: Tuesday, March 01, 2016 8:42 PM
> To: gowrishankar; Xu, HuilongX
> Cc: dts
> Subject: RE: [dts] [PATCH 2/9] framework: platform independent cpu info
> parsing
> 
> Huilong,
> "lscpu" is one of linux system utilities, it packed in util-linux rpm file
> in fedora distribution.
> Could you whether there is available installation package in yocto?
> 
> > -----Original Message-----
> > From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of gowrishankar
> > Sent: Tuesday, March 01, 2016 11:14 AM
> > To: Xu, HuilongX
> > Cc: dts
> > Subject: Re: [dts] [PATCH 2/9] framework: platform independent cpu info
> > parsing
> >
> > Hi,
> > Thanks for this check. For yocto or any other platform which do not have
> > lscpu by default, we can add a function to convert cpu info into a
> > parsable
> > format as given by lscpu. Any thoughts ?.
> >
> > Thanks,
> > Gowrishankar
> >
> > On Monday 29 February 2016 07:43 AM, Xu, HuilongX wrote:
> > > Hi Gowrishankar,
> > > Lscpu cmdline not default in yocto os.
> > > Thanks  a lot
> > >> -----Original Message-----
> > >> From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of Gowrishankar
> > >> Sent: Friday, February 26, 2016 6:17 PM
> > >> To: dts
> > >> Subject: [dts] [PATCH 2/9] framework: platform independent cpu info
> > >> parsing
> > >>
> > >> To collect thread/core/socket, /proc/cpuinfo would not help in case
> of
> > >> powerpc.
> > >> Instead, lscpu seems to be a better alternative and platform neutral
> > >> approach.
> > >>
> > >> Signed-off-by: Gowrishankar <gowrishankar.m@linux.vnet.ibm.com>
> > >> ---
> > >>   framework/crb.py |   40 ++++++++++++----------------------------
> > >>   1 file changed, 12 insertions(+), 28 deletions(-)
> > >>
> > >> diff --git a/framework/crb.py b/framework/crb.py
> > >> index c6fd9fb..1711f37 100644
> > >> --- a/framework/crb.py
> > >> +++ b/framework/crb.py
> > >> @@ -495,41 +495,25 @@ class Crb(object):
> > >>
> > >>           cpuinfo = \
> > >>               self.send_expect(
> > >> -                "grep --color=never \"processor\\|physical id\\|core
> > >> id\\|^$\" /proc/cpuinfo",
> > >> +                "lscpu -p|grep -v \#",
> > >>                   "#", alt_session=True)
> > >>
> > >> -        if "processor" not in cpuinfo:
> > >> -            # yocto not support --color=never, but ubuntu must need
> -
> > -
> > >> color=never,
> > >> -            # so check cpuinfo, before parsing cpuinfo, if cpuifo
> get
> > >> error, delete --color=never
> > >> -            # and get cpuinfo again
> > >> -            cpuinfo = \
> > >> -                self.send_expect(
> > >> -                    r'grep "processor\|physical id\|core id\|^$"
> > >> /proc/cpuinfo',
> > >> -                    "#", alt_session=True)
> > >> -
> > >> -        cpuinfo = cpuinfo.split('\r\n\r\n')
> > >> +        cpuinfo = cpuinfo.split()
> > >>           # haswell cpu on cottonwood core id not correct
> > >>           # need addtional coremap for haswell cpu
> > >>           core_id = 0
> > >>           coremap = {}
> > >>           for line in cpuinfo:
> > >> -            m = re.search("processor\t: (\d+)\r\n" +
> > >> -                          "physical id\t: (\d+)\r\n" +
> > >> -                          "core id\t\t: (\d+)", line)
> > >> -
> > >> -            if m:
> > >> -                thread = m.group(1)
> > >> -                socket = m.group(2)
> > >> -                core = m.group(3)
> > >> -
> > >> -                if core not in coremap.keys():
> > >> -                    coremap[core] = core_id
> > >> -                    core_id += 1
> > >> -
> > >> -                if self.crb['bypass core0'] and core == '0' and
> > socket ==
> > >> '0':
> > >> -                    self.logger.info("Core0 bypassed")
> > >> -                    continue
> > >> -                self.cores.append(
> > >> +            (thread, core, socket) = line.split(',')[0:3]
> > >> +
> > >> +            if core not in coremap.keys():
> > >> +                coremap[core] = core_id
> > >> +                core_id += 1
> > >> +
> > >> +            if self.crb['bypass core0'] and core == '0' and socket
> ==
> > '0':
> > >> +                self.logger.info("Core0 bypassed")
> > >> +                continue
> > >> +            self.cores.append(
> > >>                       {'thread': thread, 'socket': socket, 'core':
> > >> coremap[core]})
> > >>
> > >>           self.number_of_cores = len(self.cores)
> > >> --
> > >> 1.7.10.4
> > >
> >