On Dec 23 14:55:30,c...@schulte.it wrote:
things. I am searching for some kind of system API allowing an
application to reserve a certain amount of CPUs exclusively - not shared
with any other application - maybe not even the OS.
Let's back off before blaming the OS
or declaring CPU affinity to
On Fri, 27 Dec 2024, at 05:12, Anon Loli wrote:
> This is all, granted, me not understanding how CPU and other resource's
> scheduling works in general, and/or in OpenBSD, but this to me seems to be the
> most sane thing.
> Is manual resource dividing even possible in OS-s, and another question - i
On Mon, Dec 23, 2024 at 05:03:10PM +0100, Jan Stary wrote:
> On Dec 23 14:55:30, c...@schulte.it wrote:
> > things. I am searching for some kind of system API allowing an
> > application to reserve a certain amount of CPUs exclusively - not shared
> > with any other application - maybe not even the
On 12/23/24 22:23, Geoff Steckel wrote:
> On 12/23/24 1:43 PM, Christian Schulte wrote:
>> Not criticizing OpenBSD in any way. Let me try to explain a common use
>> case. There is a data source capable of providing X bytes per second at
>> max. The application needs to be setup in a way it can rece
On 12/23/24 1:43 PM, Christian Schulte wrote:
Not criticizing OpenBSD in any way. Let me try to explain a common use
case. There is a data source capable of providing X bytes per second at
max. The application needs to be setup in a way it can receive those X
bytes per second without spin locking
On 12/23/24 19:43, Christian Schulte wrote:
> On 12/23/24 17:37, Geoff Steckel wrote:
>> On 12/23/24 11:20 AM, Gábor LENCSE wrote:
>>> Under Linux, one can use the isolcpus kernel command line
>>> parameter to exclude certain cores from the scheduler.
>>> I use the DPDK rte_eal_remote_launch() func
If you need a "guarantee" to be able to process X bytes/second I think you need
a real-time OS not a general purpose one.
On 12/23/24 17:37, Geoff Steckel wrote:
> On 12/23/24 11:20 AM, Gábor LENCSE wrote:
>> Under Linux, one can use the isolcpus kernel command line
>> parameter to exclude certain cores from the scheduler.
>> I use the DPDK rte_eal_remote_launch() function to start a thread on
>> an isolated CPU core.
Hi Geoff,
23/12/2024 17:37 keltezéssel, Geoff Steckel írta:
On 12/23/24 11:20 AM, Gábor LENCSE wrote:
Under Linux, one can use the isolcpus kernel command line
parameter to exclude certain cores from the scheduler.
I use the DPDK rte_eal_remote_launch() function to start a thread on
an isolate
On 12/23/24 17:03, Jan Stary wrote:
> On Dec 23 14:55:30, c...@schulte.it wrote:
>> things. I am searching for some kind of system API allowing an
>> application to reserve a certain amount of CPUs exclusively - not shared
>> with any other application - maybe not even the OS.
>
> If that existed,
On 12/23/24 11:20 AM, Gábor LENCSE wrote:
Under Linux, one can use the isolcpus kernel command line
parameter to exclude certain cores from the scheduler.
I use the DPDK rte_eal_remote_launch() function to start a thread on
an isolated CPU core.
Is there anything similar under OpenBSD?
Is th
23/12/2024 17:03 keltezéssel, Jan Stary írta:
On Dec 23 14:55:30, c...@schulte.it wrote:
things. I am searching for some kind of system API allowing an
application to reserve a certain amount of CPUs exclusively - not shared
with any other application - maybe not even the OS.
If that existed
On Dec 23 14:55:30, c...@schulte.it wrote:
> things. I am searching for some kind of system API allowing an
> application to reserve a certain amount of CPUs exclusively - not shared
> with any other application - maybe not even the OS.
If that existed, every application would start with
"reserve
On 2024-12-23, Christian Schulte wrote:
> Is there some standard API (e.g. POSIX) allowing an
> application to reserve a certain amount of processors to a specific
> application?
Nothing standard afaik. There are non-standard APIs to set cpu affinity
etc on some OS, but not on OpenBSD.
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