• Soft Versus Hard Process Limits

    From Lawrence D'Oliveiro@21:1/5 to All on Fri Jun 20 04:26:00 2025
    ldo@theon:~> diff -u <(ulimit -Sa) <(ulimit -Ha)
    --- /dev/fd/63 2025-06-20 16:23:40.206493901 +1200
    +++ /dev/fd/62 2025-06-20 16:23:40.206493901 +1200
    @@ -1,16 +1,16 @@
    real-time non-blocking time (microseconds, -R) unlimited
    -core file size (blocks, -c) 0
    +core file size (blocks, -c) unlimited
    data seg size (kbytes, -d) unlimited
    scheduling priority (-e) 0
    file size (blocks, -f) unlimited
    pending signals (-i) 124021
    max locked memory (kbytes, -l) 8192
    max memory size (kbytes, -m) unlimited
    -open files (-n) 1024
    +open files (-n) 524288
    pipe size (512 bytes, -p) 8
    POSIX message queues (bytes, -q) 819200
    real-time priority (-r) 0
    -stack size (kbytes, -s) 8192
    +stack size (kbytes, -s) unlimited
    cpu time (seconds, -t) unlimited
    max user processes (-u) 124021
    virtual memory (kbytes, -v) unlimited

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From c186282@21:1/5 to Lawrence D'Oliveiro on Fri Jun 20 01:19:49 2025
    On 6/20/25 12:26 AM, Lawrence D'Oliveiro wrote:
    ldo@theon:~> diff -u <(ulimit -Sa) <(ulimit -Ha)
    --- /dev/fd/63 2025-06-20 16:23:40.206493901 +1200
    +++ /dev/fd/62 2025-06-20 16:23:40.206493901 +1200
    @@ -1,16 +1,16 @@
    real-time non-blocking time (microseconds, -R) unlimited
    -core file size (blocks, -c) 0
    +core file size (blocks, -c) unlimited
    data seg size (kbytes, -d) unlimited
    scheduling priority (-e) 0
    file size (blocks, -f) unlimited
    pending signals (-i) 124021
    max locked memory (kbytes, -l) 8192
    max memory size (kbytes, -m) unlimited
    -open files (-n) 1024
    +open files (-n) 524288
    pipe size (512 bytes, -p) 8
    POSIX message queues (bytes, -q) 819200
    real-time priority (-r) 0
    -stack size (kbytes, -s) 8192
    +stack size (kbytes, -s) unlimited
    cpu time (seconds, -t) unlimited
    max user processes (-u) 124021
    virtual memory (kbytes, -v) unlimited


    Uh ... ?QUE?

    Beware of what 'top' tells you. Seeing 100+ percent
    CPU use is common - but the load is actually split
    over more than one cores.

    Determining REAL load can sometimes be a bit tricky
    in Linux.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From rbowman@21:1/5 to All on Fri Jun 20 20:33:25 2025
    On Fri, 20 Jun 2025 01:19:49 -0400, c186282 wrote:


    Beware of what 'top' tells you. Seeing 100+ percent CPU use is common
    - but the load is actually split over more than one cores.

    Determining REAL load can sometimes be a bit tricky in Linux.

    'I' will toggle between the Irix and Solaris modes.

    "Also for multi-processor environments, if Irix mode is Off, top will
    operate in Solaris mode where a task's cpu usage will be divided by the
    total number of CPUs. You toggle Irix/Solaris modes with the `I'
    interactive command."

    "System Monitor' on Ubuntu has a toggle and defaults to dividing; top
    defaults to Irix. He may not have had 'Show All Processes' set in System Monitor but a person in r/Ubunutu couldn't figure out what was bogging
    down the machine. top showed it was a service for video/gaming.

    '1' in top will show usage by core, although it's not the most intuitive presentation. htop has a better presentation as far as cores but isn't as straight forward for processes.

    I hate to say it but Windows tools are a bit more polished.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)