Symmetric Multi Processing [quote] > How do you determine if the system is utilizing both CPUs?[/quote] 'cat /proc/cpuinfo' or/and run 'xosview'. [quote] > I'm running a dual PII 450 with Red Hat 9 (and 1/2 gig RAM) and it seems > like whenever I fire up an application or two the CPU utilization will get > pegged at 50% and the system slows down to a crawl.[/quote] Hard to tell from your description, run 'xosview'/'top' and check if the box is paging heavily. -- Michael Heiming Remove +SIGNS and www. if you expect an answer, sorry for inconvenience, but I get tons of SPAM [allowsmilie] => 1 [showsignature] => 0 [ipaddress] => [iconid] => 0 [visible] => 1 [attach] => 0 [infraction] => 0 [reportthreadid] => 0 [isusenetpost] => 1 [msgid] => <2upvfb.mk8.ln@news.heiming.de> [ref] => [htmlstate] => on_nl2br [postusername] => Michael Heiming [ip] => michael+USENET@ [isdeleted] => 0 [usergroupid] => [membergroupids] => [displaygroupid] => [password] => [passworddate] => [email] => [styleid] => [parentemail] => [homepage] => [icq] => [aim] => [yahoo] => [msn] => [skype] => [showvbcode] => [showbirthday] => [usertitle] => [customtitle] => [joindate] => [daysprune] => [lastvisit] => [lastactivity] => [lastpost] => [lastpostid] => [posts] => [reputation] => [reputationlevelid] => [timezoneoffset] => [pmpopup] => [avatarid] => [avatarrevision] => [profilepicrevision] => [sigpicrevision] => [options] => [akvbghsfs_optionsfield] => [birthday] => [birthday_search] => [maxposts] => [startofweek] => [referrerid] => [languageid] => [emailstamp] => [threadedmode] => [autosubscribe] => [pmtotal] => [pmunread] => [salt] => [ipoints] => [infractions] => [warnings] => [infractiongroupids] => [infractiongroupid] => [adminoptions] => [profilevisits] => [friendcount] => [friendreqcount] => [vmunreadcount] => [vmmoderatedcount] => [socgroupinvitecount] => [socgroupreqcount] => [pcunreadcount] => [pcmoderatedcount] => [gmmoderatedcount] => [assetposthash] => [fbuserid] => [fbjoindate] => [fbname] => [logintype] => [fbaccesstoken] => [newrepcount] => [vbseo_likes_in] => [vbseo_likes_out] => [vbseo_likes_unread] => [temp] => [field1] => [field2] => [field3] => [field4] => [field5] => [subfolders] => [pmfolders] => [buddylist] => [ignorelist] => [signature] => [searchprefs] => [rank] => [icontitle] => [iconpath] => [avatarpath] => [hascustomavatar] => 0 [avatardateline] => [avwidth] => [avheight] => [edit_userid] => [edit_username] => [edit_dateline] => [edit_reason] => [hashistory] => [pagetext_html] => [hasimages] => [signatureparsed] => [sighasimages] => [sigpic] => [sigpicdateline] => [sigpicwidth] => [sigpicheight] => [postcount] => 1 [islastshown] => [isfirstshown] => 1 [attachments] => [allattachments] => ) --> Newb Questions: What does SMP stand for? How do I know if the system is utilizing both CPUs? - Linux Setup, Configuration & Administration

Newb Questions: What does SMP stand for? How do I know if the system is utilizing both CPUs? - Linux Setup, Configuration & Administration

[ Followup-To: comp.os.linux.setup ] In comp.os.linux.setup Caught Napping <youremail.address> wrote: > What does SMP stand for? Does this designate the Muti-Processor Kernel. As others pointed out - SMP --> Symmetric Multi Processing > How do you determine if the system is utilizing both CPUs? 'cat /proc/cpuinfo' or/and run 'xosview'. > I'm running a dual PII 450 with Red Hat 9 (and 1/2 gig RAM) and it seems > like whenever I fire up an application or two the CPU utilization will get > pegged at 50% and the system slows down to a crawl. Hard to tell from your description, ...

  1. #1

    Default Re: Newb Questions: What does SMP stand for? How do I know if the system is utilizing both CPUs?

    [ Followup-To: comp.os.linux.setup ]

    In comp.os.linux.setup Caught Napping <youremail.address> wrote:
    > What does SMP stand for? Does this designate the Muti-Processor Kernel.
    As others pointed out - SMP --> Symmetric Multi Processing
    > How do you determine if the system is utilizing both CPUs?
    'cat /proc/cpuinfo' or/and run 'xosview'.
    > I'm running a dual PII 450 with Red Hat 9 (and 1/2 gig RAM) and it seems
    > like whenever I fire up an application or two the CPU utilization will get
    > pegged at 50% and the system slows down to a crawl.
    Hard to tell from your description, run 'xosview'/'top' and check if the
    box is paging heavily.

    --
    Michael Heiming

    Remove +SIGNS and www. if you expect an answer, sorry for
    inconvenience, but I get tons of SPAM
    Michael Heiming Guest

  2. Moderated Post

    Default Re: Newb Questions: What does SMP stand for? How do I know if the system is utilizing both CPUs?

    Removed by Administrator
    Wayne Throop Guest
    Moderated Post

  3. #3

    Default Re: Newb Questions: What does SMP stand for? How do I know if the

    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1

    Wayne Throop wrote:
    |
    | Well duh. And this obviosity is relevant to the question of why cpu
    | usage would peg at 50% in a 2-cpu system for what reason exactly?
    |
    | : and a process is a little different from a thread of execution.
    |
    | Well duh. And is this in some way relevant to the fact that if only one
    | non-multithreaded process is active at a time (eg because they are
    | effectively coroutines), it might explain a cpu usage pegged at 50%?
    | Or is it just a random comment thrown in?
    |
    | Just wondering.
    |

    No, these are just random comments thrown in.


    |
    | Wayne Throop [email]throopwsheol.org[/email] [url]http://sheol.org/throopw[/url]


    - --
    Respectfully,


    CL Gilbert

    "Verily, verily, I say unto you, He that entereth not by the door() into
    the sheepfold{}, but climbeth up some other *way, the same is a thief
    and a robber." John 10:1

    GnuPG Key Fingerprint:
    82A6 8893 C2A1 F64E A9AD 19AE 55B2 4CD7 80D2 0A2D

    For a free Java interface to Freechess.org see
    [url]http://www.rigidsoftware.com/Chess/chess.html[/url]
    -----BEGIN PGP SIGNATURE-----
    Version: GnuPG v1.2.2 (GNU/Linux)
    Comment: Using GnuPG with Mozilla - [url]http://enigmail.mozdev.org[/url]

    iD8DBQE/JBv5VbJM14DSCi0RAodBAJoCKwrtvq8RN0dw85i0tykwEbgKeQ Cgogbf
    5W3WLxYH1CfhnvSVyL1r364=
    =lvze
    -----END PGP SIGNATURE-----

    CL (dnoyeB) Gilbert Guest

  4. #4

    Default Re: Newb Questions: What does SMP stand for? How do I know if the system is utilizing both CPUs?

    In comp.os.linux.setup "CL (dnoyeB) Gilbert" <CheckMyGPGKeythisoneisfake.com> wrote:
    > -----BEGIN PGP SIGNED MESSAGE-----
    > Hash: SHA1
    > Wayne Throop wrote:
    > |
    > | If the process(es) are actually single-threaded (ie, it's only one
    > | process, or if there are several, they hand control back and forth,
    > | eg, by sending requests to the others and waiting on the result),
    > | that'd be expected, if CPU usage were measured as percentage
    > | of the sum of all CPUs.
    > |
    > You can have multithreaded applications on any multitasking OS. You
    > dont first need 2 processors. Remember windows 3.x, and how if you
    > were printing, you had to wait till it was finished before you could do
    > anything else? not any more.
    multi-tasking on Windoze? yeah, right, just try it sometime, it s
    BIG wennie. they _finally_ got the printer spool, but many years later
    formatting a floppy took total system resourses.

    really neat and "state of art" has never been used to describe _anything_
    published in Redmond (i say that as a native!). --Loren`
    > and a process is a little different from a thread of execution.
    > |
    > | Wayne Throop [email]throopwsheol.org[/email] [url]http://sheol.org/throopw[/url]
    > - --
    > Respectfully,
    > CL Gilbert
    > "Verily, verily, I say unto you, He that entereth not by the door() into
    > the sheepfold{}, but climbeth up some other *way, the same is a thief
    > and a robber." John 10:1
    > GnuPG Key Fingerprint:
    > 82A6 8893 C2A1 F64E A9AD 19AE 55B2 4CD7 80D2 0A2D
    > For a free Java interface to Freechess.org see
    > [url]http://www.rigidsoftware.com/Chess/chess.html[/url]
    > -----BEGIN PGP SIGNATURE-----
    > Version: GnuPG v1.2.2 (GNU/Linux)
    > Comment: Using GnuPG with Mozilla - [url]http://enigmail.mozdev.org[/url]
    > iD8DBQE/I68VVbJM14DSCi0RAshSAKDUGZktm2Q03POkzf9FNjjTSmRkrg CfZPwq
    > CamGD505eTfJeORpeBs1l6I=
    > =NrZr
    > -----END PGP SIGNATURE-----
    lcoe Guest

  5. #5

    Default Re: Newb Questions: What does SMP stand for? How do I know if the

    ::: [... cpu utilization pegs at 50% in 2-cpu system ...]

    :: If the process(es) are actually single-threaded (ie, it's only one
    :: process, or if there are several, they hand control back and forth,
    :: eg, by sending requests to the others and waiting on the result),
    :: that'd be expected, if CPU usage were measured as percentage of the
    :: sum of all CPUs.

    : "CL (dnoyeB) Gilbert" <CheckMyGPGKeyThisOneIsFake.com>
    : You can have multithreaded applications on any multitasking OS. You
    : dont first need 2 processors.

    Well duh. And this obviosity is relevant to the question of why cpu
    usage would peg at 50% in a 2-cpu system for what reason exactly?

    : and a process is a little different from a thread of execution.

    Well duh. And is this in some way relevant to the fact that if only one
    non-multithreaded process is active at a time (eg because they are
    effectively coroutines), it might explain a cpu usage pegged at 50%?
    Or is it just a random comment thrown in?

    Just wondering.


    Wayne Throop [email]throopwsheol.org[/email] [url]http://sheol.org/throopw[/url]
    Wayne Throop Guest

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