From: Mark Rutland <mark.rutland@arm.com>
To: Daniel Borkmann <daniel@iogearbox.net>
Cc: Puranjay Mohan <puranjay12@gmail.com>,
ast@kernel.org, andrii@kernel.org, martin.lau@linux.dev,
song@kernel.org, catalin.marinas@arm.com, bpf@vger.kernel.org,
kpsingh@kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf-next v4 0/3] bpf, arm64: use BPF prog pack allocator in BPF JIT
Date: Mon, 3 Jul 2023 18:15:02 +0100 [thread overview]
Message-ID: <ZKMCFtlfJA1LfGNJ@FVFF77S0Q05N> (raw)
In-Reply-To: <7e05efe1-0af0-1896-6f6f-dcb02ed8ca27@iogearbox.net>
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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next prev parent reply other threads:[~2023-07-03 17:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-26 8:58 [PATCH bpf-next v4 0/3] bpf, arm64: use BPF prog pack allocator in BPF JIT Puranjay Mohan
2023-06-26 8:58 ` [PATCH bpf-next v4 1/3] bpf: make bpf_prog_pack allocator portable Puranjay Mohan
2023-06-26 8:58 ` [PATCH bpf-next v4 2/3] arm64: patching: Add aarch64_insn_copy() Puranjay Mohan
2023-06-26 8:58 ` [PATCH bpf-next v4 3/3] bpf, arm64: use bpf_jit_binary_pack_alloc Puranjay Mohan
2023-08-15 14:09 ` Puranjay Mohan
2023-08-16 13:25 ` Daniel Borkmann
2023-06-30 17:20 ` [PATCH bpf-next v4 0/3] bpf, arm64: use BPF prog pack allocator in BPF JIT Florent Revest
2023-07-03 16:40 ` Daniel Borkmann
2023-07-03 17:15 ` Mark Rutland [this message]
2023-07-03 17:54 ` Daniel Borkmann
2023-07-17 7:50 ` Puranjay Mohan
2023-07-30 17:22 ` Puranjay Mohan
2023-08-02 21:02 ` Alexei Starovoitov
2023-08-03 11:13 ` Mark Rutland
2023-08-03 16:15 ` Alexei Starovoitov
2023-08-03 16:32 ` Florent Revest
2023-08-04 15:11 ` Puranjay Mohan
2023-11-02 15:59 ` Mark Rutland
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