> So now I am down to the timers...
> I am using TFPTimer timers in the scheduler to handle various things,
> some of them are just one-shots to delay an action for some predetarmined
> time.
I don't know how TFpTimers work either, but when I want a timer in one of my
console apps, I just do
On Wed, 19 May 2021 19:46:43 +0100
Martin Wynne via fpc-pascal wrote:
>[...]
> I found that the problem is in the Lazarus Application.OnIdle event,
> which fails to honour the Done parameter and runs continuously:
How do you know, it is a bug in OnIdle, and not something continuously
emitting
On Wed, 19 May 2021 19:46:43 +0100, Martin Wynne via fpc-pascal
wrote:
>On 18/05/2021 20:59, Bo Berglund via fpc-pascal wrote:
>> I have a pretty sizable console app written with Delphi 15 years ago but
>> ported
>> to Linux using FreePascal (3.2.0) with Lazarus (2.0.12) as IDE.
>
>I have the
On 18/05/2021 20:59, Bo Berglund via fpc-pascal wrote:
I have a pretty sizable console app written with Delphi 15 years ago but ported
to Linux using FreePascal (3.2.0) with Lazarus (2.0.12) as IDE.
I have the same problem with high CPU usage for a 20-year-old Delphi App
compiled in
On Wed, 19 May 2021 19:42:27 +0200, Florian Klämpfl via fpc-pascal
wrote:
>Even its a service, running it with gprof enabled should be possible, no?
I do not know what you mean, but the program is installed as a service but it is
essentially a normal console application with no GUI parts.
The
> Am 19.05.2021 um 19:00 schrieb Bo Berglund via fpc-pascal
> :
>
> On Wed, 19 May 2021 16:02:00 +0200, Bo Berglund via fpc-pascal
> wrote:
>
>> The "other" items might be hidden inside other used classes such as the
>> Indy10
>> components I use to implement the TCP/IP communications.
>>
On Wed, 19 May 2021 16:02:00 +0200, Bo Berglund via fpc-pascal
wrote:
>The "other" items might be hidden inside other used classes such as the Indy10
>components I use to implement the TCP/IP communications.
>But when searching for sleep through the complete project sources I came up
On 5/19/2021 9:53 AM, Henry Vermaak wrote:
On Wed, 19 May 2021 at 14:36, Travis Siegel via fpc-pascal
wrote:
No doubt your sleep code works just fine.
I'm not saying the sleep command doesn't work.
I'm saying the sleep command doesn't release unused cpu cycles for other
threads/programs to
On Wed, 19 May 2021 11:45:34 +0200, Marco van de Voort via fpc-pascal
wrote:
>So my guess something else is spinning (e.g. in a thread).
Seems likely based on my test with giving ChecSynchronize an argument 5 and not
noticing any difference...
So the original conundrum still applies:
** How
On Wed, 19 May 2021 at 14:36, Travis Siegel via fpc-pascal
wrote:
>
> No doubt your sleep code works just fine.
>
> I'm not saying the sleep command doesn't work.
>
> I'm saying the sleep command doesn't release unused cpu cycles for other
> threads/programs to use.
No, fpc uses nanosleep()
No doubt your sleep code works just fine.
I'm not saying the sleep command doesn't work.
I'm saying the sleep command doesn't release unused cpu cycles for other
threads/programs to use.
Apparently, if you want that behavior, you need to yield the cpu time
your process would otherwise take,
On Wed, 19 May 2021 00:44:18 +0200, Martin Frb via fpc-pascal
wrote:
>Also CheckSyncronize afaik takes a timeout.
>So if you do not need to check the variables every millisecond, then do
>
> While not (bSTerm or bSInt or bsHup) do
> begin
> //Here is where the server runs as
On Tue, 18 May 2021 18:37:38 -0400
Travis Siegel via fpc-pascal wrote:
> Apparently, you can release cpu cycles, but it's with the sched_yield
> (section 2 in the man pages), not the sleep command on linux.
What sleep command are you referring to?
What do you mean with cpu cycles?
Sleep works
Op 2021-05-18 om 23:29 schreef Travis Siegel via fpc-pascal:
I'm not positive, but I'm pretty sure the sleep command in linux does
not behave the same way it does in windows.
As you know, in windows, a sleep command (even if delivered with a
parameter of 0) gives up time slices to other
On Wed, 19 May 2021 00:29:17 +0200, Bo Berglund via fpc-pascal
wrote:
>Could this tiny loop consume 6-7% CPU cycles?
Thanks for all of the responses, I will test tomorrow.
I have noted that there are no other service processes that are waiting for some
action but show up with CPU cycles above
On 19/05/2021 00:29, Bo Berglund via fpc-pascal wrote:
While not (bSTerm or bSInt or bsHup) do
begin
//Here is where the server runs as defined elsewhere
//Eternal loop to wait for system messages
Sleep(1); //To not hog the CPU
CheckSynchronize;
-pascal
Sent: Tuesday, May 18, 2021 6:29:17 PM
To: fpc-pascal@lists.freepascal.org
Cc: Bo Berglund
Subject: Re: [fpc-pascal] How to find where my app consumes CPU?
On Tue, 18 May 2021 21:40:15 +, Alexander Grotewohl via fpc-pascal
wrote:
>if it's waiting on keyboard input you might be bet
Apparently, you can release cpu cycles, but it's with the sched_yield
(section 2 in the man pages), not the sleep command on linux.
So, apparently, the sleep is still using full system recourses, even
though it's just waiting. You apparently have to release cpu time with
the sched_yield
On Tue, 18 May 2021 21:40:15 +, Alexander Grotewohl via fpc-pascal
wrote:
>if it's waiting on keyboard input you might be better off using select() for
>that instead of looping and checking for keyboard input each go around.
>
>sleep() might already do something similar with a zero timeout
://dcclost.com
From: fpc-pascal on behalf of Travis
Siegel via fpc-pascal
Sent: Tuesday, May 18, 2021 5:29:10 PM
To: bo.bergl...@gmail.com ; FPC-Pascal users discussions
Cc: Travis Siegel
Subject: Re: [fpc-pascal] How to find where my app consumes CPU?
I'm not positive
I'm not positive, but I'm pretty sure the sleep command in linux does
not behave the same way it does in windows.
As you know, in windows, a sleep command (even if delivered with a
parameter of 0) gives up time slices to other programs on the system.
This does not appear to be the case on
On Tue, 18 May 2021 21:59:33 +0200, Bo Berglund via fpc-pascal
wrote:
>This is working seemingly OK, but today when I checked the RPi I found using
>top
>that it was running 11% CPU, which is strange because it has nothing to do at
>the moment.
>
>I have tried to be as conservative as possible
I have a pretty sizable console app written with Delphi 15 years ago but ported
to Linux using FreePascal (3.2.0) with Lazarus (2.0.12) as IDE. It runs as a
systemd service on a Raspberry Pi3.
Basically it is a scheduler, which checks every minute if there is a task to
run, otherwise it waits for
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