From: Eduard Zingerman <eddyz87@gmail.com>
To: Donglin Peng <dolinux.peng@gmail.com>,
ast@kernel.org, andrii.nakryiko@gmail.com
Cc: zhangxiaoqin@xiaomi.com, ihor.solodrai@linux.dev,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
pengdonglin <pengdonglin@xiaomi.com>,
Alan Maguire <alan.maguire@oracle.com>
Subject: Re: [PATCH bpf-next v10 10/13] libbpf: Optimize the performance of determine_ptr_size
Date: Thu, 18 Dec 2025 14:27:57 -0800 [thread overview]
Message-ID: <5ceab6b0e23c0f00f3d3acdaf70bef5d9f982e42.camel@gmail.com> (raw)
In-Reply-To: <20251218113051.455293-11-dolinux.peng@gmail.com>
On Thu, 2025-12-18 at 19:30 +0800, Donglin Peng wrote:
> From: pengdonglin <pengdonglin@xiaomi.com>
>
> Leverage the performance improvement of btf__find_by_name_kind() when
> BTF is sorted. For sorted BTF, the function uses binary search with
> O(log n) complexity instead of linear search, providing significant
> performance benefits, especially for large BTF like vmlinux.
>
> Cc: Eduard Zingerman <eddyz87@gmail.com>
> Cc: Alexei Starovoitov <ast@kernel.org>
> Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
> Cc: Alan Maguire <alan.maguire@oracle.com>
> Cc: Ihor Solodrai <ihor.solodrai@linux.dev>
> Cc: Xiaoqin Zhang <zhangxiaoqin@xiaomi.com>
> Signed-off-by: pengdonglin <pengdonglin@xiaomi.com>
> ---
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
[...]
next prev parent reply other threads:[~2025-12-18 22:28 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-18 11:30 [PATCH bpf-next v10 00/13] Improve the performance of BTF type lookups with binary search Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 01/13] libbpf: Add BTF permutation support for type reordering Donglin Peng
2025-12-18 23:02 ` Andrii Nakryiko
2025-12-19 3:14 ` Donglin Peng
2025-12-19 3:16 ` Donglin Peng
2025-12-19 17:07 ` Andrii Nakryiko
2025-12-20 8:39 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 02/13] selftests/bpf: Add test cases for btf__permute functionality Donglin Peng
2025-12-18 23:03 ` Andrii Nakryiko
2025-12-19 3:30 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 03/13] tools/resolve_btfids: Support BTF sorting feature Donglin Peng
2025-12-18 23:09 ` Andrii Nakryiko
2025-12-19 3:42 ` Donglin Peng
2025-12-19 17:12 ` Andrii Nakryiko
2025-12-20 8:44 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 04/13] libbpf: Optimize type lookup with binary search for sorted BTF Donglin Peng
2025-12-18 19:32 ` Eduard Zingerman
2025-12-18 23:29 ` Andrii Nakryiko
2025-12-19 0:13 ` Eduard Zingerman
2025-12-19 0:19 ` Andrii Nakryiko
2025-12-19 0:24 ` Eduard Zingerman
2025-12-19 1:01 ` Andrii Nakryiko
2025-12-19 2:53 ` Donglin Peng
2025-12-19 17:28 ` Andrii Nakryiko
2025-12-20 9:38 ` Donglin Peng
2025-12-22 1:58 ` Donglin Peng
2026-01-06 0:38 ` Andrii Nakryiko
2026-01-06 2:42 ` Donglin Peng
2026-01-06 0:36 ` Andrii Nakryiko
2026-01-06 2:50 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 05/13] libbpf: Verify BTF Sorting Donglin Peng
2025-12-18 19:38 ` Eduard Zingerman
2025-12-18 23:44 ` Andrii Nakryiko
2025-12-19 5:06 ` Donglin Peng
2025-12-19 17:33 ` Andrii Nakryiko
[not found] ` <CAErzpmsvirekLBRrJYVgmRC0YKWCbo7OyRQXgNYrk83aF-Wz2Q@mail.gmail.com>
2026-01-07 3:45 ` Donglin Peng
2026-01-07 21:50 ` Andrii Nakryiko
2026-01-08 1:50 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 06/13] btf: Optimize type lookup with binary search Donglin Peng
2025-12-18 21:38 ` Eduard Zingerman
2025-12-19 5:07 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 07/13] btf: Verify BTF Sorting Donglin Peng
2025-12-18 21:43 ` Eduard Zingerman
2025-12-19 5:10 ` Donglin Peng
2025-12-18 23:46 ` Andrii Nakryiko
2025-12-19 5:10 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 08/13] bpf: Skip anonymous types in type lookup for performance Donglin Peng
2025-12-18 22:21 ` Eduard Zingerman
2025-12-18 23:59 ` Andrii Nakryiko
2025-12-19 5:40 ` Donglin Peng
2025-12-18 22:24 ` Eduard Zingerman
2025-12-18 11:30 ` [PATCH bpf-next v10 09/13] bpf: Optimize the performance of find_bpffs_btf_enums Donglin Peng
2025-12-19 0:01 ` Andrii Nakryiko
2025-12-19 5:41 ` Donglin Peng
2025-12-20 14:27 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 10/13] libbpf: Optimize the performance of determine_ptr_size Donglin Peng
2025-12-18 22:27 ` Eduard Zingerman [this message]
2025-12-19 0:03 ` Andrii Nakryiko
2025-12-19 5:42 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 11/13] libbpf: Add btf_is_sorted and btf_sorted_start_id helpers to refactor the code Donglin Peng
2025-12-18 22:33 ` Eduard Zingerman
2025-12-19 5:49 ` Donglin Peng
2025-12-19 0:05 ` Andrii Nakryiko
2025-12-19 5:51 ` Donglin Peng
2025-12-19 17:35 ` Andrii Nakryiko
2025-12-20 14:27 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 12/13] btf: Add btf_is_sorted " Donglin Peng
2025-12-18 22:30 ` Eduard Zingerman
2025-12-19 0:05 ` Andrii Nakryiko
2025-12-20 14:25 ` Donglin Peng
2025-12-18 11:30 ` [PATCH bpf-next v10 13/13] btf: Refactor the code by calling str_is_empty Donglin Peng
2025-12-18 22:34 ` Eduard Zingerman
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