Thread (30 messages) 30 messages, 5 authors, 2023-07-26

Re: [PATCH RFC net-next v2 2/7] net: page_pool: place frag_* fields in one cacheline

From: Alexander Lobakin <aleksander.lobakin@intel.com>
Date: 2023-07-14 17:16:13
Also in: lkml

From: Alexander Lobakin <aleksander.lobakin@intel.com>
Date: Fri, 14 Jul 2023 19:08:45 +0200
On x86_64, frag_* fields of struct page_pool are scattered across two
cachelines despite the summary size of 24 bytes. The last field,
::frag_users, is pushed out to the next one, sharing it with
::alloc_stats.
There are two copies now of #2 and #3 as I reordered them and forgot to
remove obsolete files ._. It's an RFC anyway, so please just ignore the
duplicates. Sorry.

[...]

Thanks,
Olek
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