[dpdk-users] [DPDK 20.11] rte_eal_init() appear additional thread

[Dong, Shaojie (NSB - CN/Hangzhou)]

Hello, David

Thank you very much for your information !

I found DPDK version 21.05 set this thread name as "telemetry-v2"

https://code.dpdk.org/dpdk/v21.05/source/lib/telemetry/telemetry.c#L541


-----Original Message-----
From: David Marchand <david.marchand at redhat.com> 
Sent: Tuesday, August 17, 2021 5:26 PM
To: Dong, Shaojie (NSB - CN/Hangzhou) <shaojie.dong at nokia-sbell.com>
Cc: Stephen Hemminger <stephen at networkplumber.org>; users at dpdk.org; Meunier, Julien (Nokia - FR/Paris-Saclay) <julien.meunier at nokia.com>
Subject: Re: [dpdk-users] [DPDK 20.11] rte_eal_init() appear additional thread

On Tue, Aug 17, 2021 at 11:19 AM Dong, Shaojie (NSB - CN/Hangzhou) <shaojie.dong at nokia-sbell.com> wrote:
> I found the additional thread was created by following path on DPDK 
> 20.11 version
>
> rte_eal_init()->rte_telemetry_init()->telemetry_v2_init()->pthread_cre
> ate()
>
> Only call pthread_create() function to create this additional thread 
> and then sleep all the time DPDK code do not set this thread's name So 
> it inherits the main thread's name
>
> Two threads with the same name are easy to confuse by business code 
> Does DPDK code support its name change ?
>
> It was not worker/slave thread

telemetry threads are renamed since 5da7736f8c53 ("telemetry: set socket listener thread name") (with a followup fix).


--
David Marchand