Hello

some observation
* I'm still observing this "problem" with latest 6.14.y
* there must be multiple problems, the memory utilization is slowly going
down at home NUMA nodes where intel x810 NIC are (like some memory leak)

Were you able to reproduce the memory problems in your testbed?

Best,
Jaroslav

čt 17. 4. 2025 v 19:52 odesílatel Keller, Jacob E <[email protected]>
napsal:

>
>
> > -----Original Message-----
> > From: Jakub Kicinski <[email protected]>
> > Sent: Wednesday, April 16, 2025 5:13 PM
> > To: Keller, Jacob E <[email protected]>
> > Cc: Jaroslav Pulchart <[email protected]>; Kitszel,
> Przemyslaw
> > <[email protected]>; Damato, Joe <[email protected]>;
> intel-wired-
> > [email protected]; [email protected]; Nguyen, Anthony L
> > <[email protected]>; Igor Raits <[email protected]>; Daniel
> Secik
> > <[email protected]>; Zdenek Pesek <[email protected]>;
> > Dumazet, Eric <[email protected]>; Martin Karsten
> > <[email protected]>; Zaki, Ahmed <[email protected]>; Czapnik,
> > Lukasz <[email protected]>; Michal Swiatkowski
> > <[email protected]>
> > Subject: Re: [Intel-wired-lan] Increased memory usage on NUMA nodes with
> ICE
> > driver after upgrade to 6.13.y (regression in commit 492a044508ad)
> >
> > On Wed, 16 Apr 2025 22:57:10 +0000 Keller, Jacob E wrote:
> > > > > And you're reverting just and exactly 492a044508ad13 ?
> > > > > The memory for persistent config is allocated in alloc_netdev_mqs()
> > > > > unconditionally. I'm lost as to how this commit could make any
> > > > > difference :(
> > > >
> > > > Yes, reverted the 492a044508ad13.
> > >
> > > Struct napi_config *is* 1056 bytes
> >
> > You're probably looking at 6.15-rcX kernels. Yes, the affinity mask
> > can be large depending on the kernel config. But report is for 6.13,
> > AFAIU. In 6.13 and 6.14 napi_config was tiny.
>
> Regardless, it should still be ~64KB even in that case which is a far cry
> from eating all available memory. Something else must be going on....
>
> Thanks,
> Jake
>


-- 
Jaroslav Pulchart
Sr. Principal SW Engineer
GoodData

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