From: Jakub Kicinski <kuba@kernel•org>
To: Jesper Dangaard Brouer <hawk@kernel•org>
Cc: davem@davemloft•net, netdev@vger•kernel.org, edumazet@google•com,
pabeni@redhat•com, almasrymina@google•com,
ilias.apalodimas@linaro•org, dsahern@gmail•com,
dtatulea@nvidia•com, willemb@google•com
Subject: Re: [PATCH net-next v3 07/13] net: page_pool: implement GET in the netlink API
Date: Wed, 22 Nov 2023 08:00:42 -0800 [thread overview]
Message-ID: <20231122080042.212c054d@kernel.org> (raw)
In-Reply-To: <27b172a5-5161-4fe2-90b1-83b83ef3b073@kernel.org>
On Wed, 22 Nov 2023 15:39:48 +0100 Jesper Dangaard Brouer wrote:
> Can we still somehow list "detached" page_pool's with ifindex==1
> (LOOPBACK_IFINDEX) ?
Do you mean filter at the kernel level to dump just them? Or whether
they are visible at all?
They are visible, with ifindex attribute absent.
If you mean filtering - I was considering various filters but it seems
like in "production" use we dump all the page pools, anyway.
The detached ones need to be kept in check, obviously, but the "live"
ones also have to be monitored to make sure they don't eat up too much
memory.
The code we prepared at Meta for when this gets merged logs:
- sum(inflight-mem), not detached
- sum(inflight-mem), detached
- recycling rate (similar calculation to the sample in the last patch)
It may be useful in CLI to dump all detached pools but ad-hoc CLI can
just filter in user space, doesn't have to be super efficient.
next prev parent reply other threads:[~2023-11-22 16:00 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-22 3:44 [PATCH net-next v3 00/13] net: page_pool: add netlink-based introspection Jakub Kicinski
2023-11-22 3:44 ` [PATCH net-next v3 01/13] net: page_pool: factor out uninit Jakub Kicinski
2023-11-22 8:38 ` Eric Dumazet
2023-11-22 14:15 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 02/13] net: page_pool: id the page pools Jakub Kicinski
2023-11-22 8:40 ` Eric Dumazet
2023-11-22 14:16 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 03/13] net: page_pool: record pools per netdev Jakub Kicinski
2023-11-22 8:55 ` Eric Dumazet
2023-11-22 15:44 ` Jakub Kicinski
2023-11-22 14:20 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 04/13] net: page_pool: stash the NAPI ID for easier access Jakub Kicinski
2023-11-22 8:57 ` Eric Dumazet
2023-11-22 14:21 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 05/13] eth: link netdev to page_pools in drivers Jakub Kicinski
2023-11-22 8:59 ` Eric Dumazet
2023-11-22 14:22 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 06/13] net: page_pool: add nlspec for basic access to page pools Jakub Kicinski
2023-11-22 9:00 ` Eric Dumazet
2023-11-22 14:24 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 07/13] net: page_pool: implement GET in the netlink API Jakub Kicinski
2023-11-22 9:35 ` Eric Dumazet
2023-11-22 14:39 ` Jesper Dangaard Brouer
2023-11-22 16:00 ` Jakub Kicinski [this message]
2023-11-22 16:21 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 08/13] net: page_pool: add netlink notifications for state changes Jakub Kicinski
2023-11-22 9:44 ` Eric Dumazet
2023-11-22 14:41 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 09/13] net: page_pool: report amount of memory held by page pools Jakub Kicinski
2023-11-22 10:16 ` Eric Dumazet
2023-11-22 16:03 ` Jakub Kicinski
2023-11-22 16:20 ` Eric Dumazet
2023-11-22 15:24 ` Jesper Dangaard Brouer
2023-11-22 16:06 ` Jakub Kicinski
2023-11-22 16:09 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 10/13] net: page_pool: report when page pool was destroyed Jakub Kicinski
2023-11-22 9:02 ` Jesper Dangaard Brouer
2023-11-22 10:21 ` Eric Dumazet
2023-11-22 3:44 ` [PATCH net-next v3 11/13] net: page_pool: expose page pool stats via netlink Jakub Kicinski
2023-11-22 10:27 ` Eric Dumazet
2023-11-22 15:51 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 12/13] net: page_pool: mute the periodic warning for visible page pools Jakub Kicinski
2023-11-22 13:53 ` Eric Dumazet
2023-11-22 16:06 ` Jesper Dangaard Brouer
2023-11-22 3:44 ` [PATCH net-next v3 13/13] tools: ynl: add sample for getting page-pool information Jakub Kicinski
2023-11-22 16:17 ` Jesper Dangaard Brouer
2023-11-25 20:57 ` [PATCH net-next v3 00/13] net: page_pool: add netlink-based introspection Shakeel Butt
2023-11-26 22:43 ` Jakub Kicinski
2023-11-27 6:54 ` Shakeel Butt
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