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Fri, 10 Apr 2026 14:42:57 -0700 (PDT) Received: from [192.168.0.226] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82f0c4dd37asm3889878b3a.42.2026.04.10.14.42.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Apr 2026 14:42:56 -0700 (PDT) Message-ID: Subject: Re: [PATCH bpf-next v4 09/14] bpf: simplify liveness to use (callsite, depth) keyed func_instances From: Eduard Zingerman To: Paul Chaignon Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, kernel-team@fb.com, yonghong.song@linux.dev, Alexei Starovoitov Date: Fri, 10 Apr 2026 14:42:53 -0700 In-Reply-To: References: <20260410-patch-set-v4-0-5d4eecb343db@gmail.com> <20260410-patch-set-v4-9-5d4eecb343db@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2026-04-10 at 23:39 +0200, Paul Chaignon wrote: [...] > I tested this series with Cilium's complexity test suite [1]. We have a > lot of different configuration and some producing larger programs than > covered in the cover letter. >=20 > Overall, the impact is quite good. It reduces the number of processed > instructions by more than 60k instructions for some of our largest > programs. It also increases the number of processed instructions by up > to 20k in fewer other cases, but I think it's manageable because they > are not the largest programs so we have some room. The mean diff over > all programs is a reduction of a few thousands processed instructions. Hi Paul, Thank you for testing this series! Are the regressing program open-source? If so, could you please point to a few? [...]