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From: Thomas Monjalon <thomas@monjalon.net>
To: Stephen Hemminger <stephen@networkplumber.org>,
	Bruce Richardson <bruce.richardson@intel.com>
Cc: "Tyler Retzlaff" <roretzla@linux.microsoft.com>,
	dev@dpdk.org, "Morten Brørup" <mb@smartsharesystems.com>,
	"Min Zhou" <zhoumin@loongson.cn>,
	stable@dpdk.org, "David Marchand" <david.marchand@redhat.com>,
	"Anatoly Burakov" <anatoly.burakov@intel.com>,
	"Narcisa Vasile" <navasile@linux.microsoft.com>,
	"Dmitry Kozlyuk" <dmitry.kozliuk@gmail.com>,
	"Konstantin Ananyev" <konstantin.v.ananyev@yandex.ru>,
	"Andrew Rybchenko" <andrew.rybchenko@oktetlabs.ru>
Subject: Re: [PATCH] eal/unix: allow creating thread with real-time priority
Date: Wed, 25 Oct 2023 17:18:30 +0200	[thread overview]
Message-ID: <1772583.VLH7GnMWUR@thomas> (raw)
In-Reply-To: <ZTkw0+uigFj0A1A2@bricha3-MOBL.ger.corp.intel.com>

25/10/2023 17:14, Bruce Richardson:
> On Wed, Oct 25, 2023 at 08:08:52AM -0700, Stephen Hemminger wrote:
> > On Wed, 25 Oct 2023 15:44:25 +0200
> > Thomas Monjalon <thomas@monjalon.net> wrote:
> > 
> > > > > 
> > > > > I'll try to pass the test by adding a sleep in the test thread.
> > > > >   
> > > > 
> > > > "sched_yield()" rather than sleep perhaps? Might better convey the
> > > > intention of the call.  
> > > 
> > > Do we have sched_yield on Windows?
> > 
> > Windows has an equivalent but sched_yield() won't work here.
> > Since the DPDK thread is still higher priority than the kernel thread,
> > the scheduler will reschedule the DPDK thread. You need to sleep
> > to let kthread run.
> 
> Interesting. Thanks for clarifying the situation.

Indeed interesting.
I've just sent a v2 before reading this.

So I should try a v3 with a sleep.
But then I need to find a better name than rte_thread_yield.
Ideas?



  reply	other threads:[~2023-10-25 15:18 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-24 12:54 Thomas Monjalon
2023-10-24 13:55 ` Morten Brørup
2023-10-24 16:04   ` Stephen Hemminger
2023-10-25 13:15     ` Thomas Monjalon
2023-10-25 13:34       ` Bruce Richardson
2023-10-25 13:44         ` Thomas Monjalon
2023-10-25 15:08           ` Stephen Hemminger
2023-10-25 15:14             ` Bruce Richardson
2023-10-25 15:18               ` Thomas Monjalon [this message]
2023-10-25 15:32                 ` Thomas Monjalon
2023-10-25 15:13 ` [PATCH v2] " Thomas Monjalon
2023-10-25 15:37   ` Stephen Hemminger
2023-10-25 16:46     ` Thomas Monjalon
2023-10-25 17:54       ` Morten Brørup
2023-10-25 21:33         ` Stephen Hemminger
2023-10-26  7:33           ` Morten Brørup
2023-10-26 16:32             ` Stephen Hemminger
2023-10-26 17:07               ` Morten Brørup
2023-10-26  0:00         ` Stephen Hemminger
     [not found] ` <20231025163352.1076755-1-thomas@monjalon.net>
2023-10-25 16:31   ` [PATCH v3 2/2] " Thomas Monjalon
     [not found] ` <20231026134313.1165954-1-thomas@monjalon.net>
2023-10-26 13:37   ` [PATCH v4 " Thomas Monjalon
     [not found] ` <20231026142749.1174372-1-thomas@monjalon.net>
2023-10-26 14:19   ` [PATCH v5 " Thomas Monjalon
2023-10-27  8:08 ` [PATCH v6 1/1] " Thomas Monjalon
2023-10-27  8:45   ` Morten Brørup
2023-10-27  9:11     ` Thomas Monjalon
2023-10-27 18:15     ` Stephen Hemminger
2024-10-07 19:27   ` Stephen Hemminger

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