lkml.org 
[lkml]   [2000]   [Mar]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Slow pthread_create() under high load
    On Tue, Mar 28, 2000 at 01:41:26AM -0800, Christopher Smith wrote:
    > On Tue, Mar 28, 2000 at 01:06:08AM -0700, Richard Gooch wrote:
    > > Because the kernel doesn't make this easy. The kernel has the concept
    > > of "tasks", which don't map well to POSIX threads. The kernel doesn't
    > > distinguish between "processes" and "threads" like POSIX does.
    > > Everything is just a task. Tasks can share some things (FS, files,
    > > VM), but they can't (yet) share PIDs (probably never), signal queues
    > > and other things required for POSIX compliance.
    >
    > IMHO, at least sharing PIDs would be a useful thing. Signal queues
    > would be nice, but there are other ways to deal with that.

    Can someone tell me why:

    pthread_creat( ....)
    if this is the first created thread
    rootpid = getpid();
    redefine getpid === return rootpid

    Doesn't work?

    --
    ---------------------------------------------------------
    Victor Yodaiken
    FSMLabs: www.fsmlabs.com www.rtlinux.com
    FSMLabs is a servicemark and a service of
    VJY Associates L.L.C, New Mexico.


    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:57    [W:0.026 / U:0.104 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site