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echo: rberrypi
to: ALL
from: KIWI USER
date: 2018-01-14 13:52:00
subject: Re: Raspberry Pi node red

On Sun, 14 Jan 2018 04:59:30 -0800, danieljamessmith1979 wrote:

> Ill Check "Top" in the command and copy the report and send to you ?
> Hope you can help guys.
>
You'll find that hard to do because it doesn't produce a static report:
the screen refreshes every second or two.

The swap space line doesn't change that frequently, so you may be able to
get it via screen capture, but its generally good enough to note
approximately what you see and post that. The important number is the
'used' figure, which will be zero if everything that is running fits into
RAM.

The watch points for system performance are:

(1) if the buff/cache figure is small almost all data i/o is going to
    require physical disk/hdd access which is always noticeably slower
    than if the required files are in the cache.

    Cache size = total - (used + free) - from the KiB Mem line

(2) if a program is swapping, this adds to the physical i/o load because
    its continually having the transfer chunks of its memory between RAM
    and the swap space.

    You can work out which program is swapping because its SHR value
    tends to exceed its RES value.


--
Martin    | martin at
Gregorie  | gregorie dot org

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