Messages in this thread | | | Date | Mon, 3 Jul 2023 18:15:02 +0100 | From | Mark Rutland <> | Subject | Re: [PATCH bpf-next v4 0/3] bpf, arm64: use BPF prog pack allocator in BPF JIT |
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On Mon, Jul 03, 2023 at 06:40:21PM +0200, Daniel Borkmann wrote: > Hi Mark,
Hi Daniel,
> On 6/26/23 10:58 AM, Puranjay Mohan wrote: > > BPF programs currently consume a page each on ARM64. For systems with many BPF > > programs, this adds significant pressure to instruction TLB. High iTLB pressure > > usually causes slow down for the whole system. > > > > Song Liu introduced the BPF prog pack allocator[1] to mitigate the above issue. > > It packs multiple BPF programs into a single huge page. It is currently only > > enabled for the x86_64 BPF JIT. > > > > This patch series enables the BPF prog pack allocator for the ARM64 BPF JIT.
> If you get a chance to take another look at the v4 changes from Puranjay and > in case they look good to you reply with an Ack, that would be great.
Sure -- this is on my queue of things to look at; it might just take me a few days to get the time to give this a proper look.
Thanks, Mark.
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