netdev - Re: [PATCH bpf-next v2 0/6] Zbb support and code simplification for RV64 JIT

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Date: Thu, 28 Sep 2023 12:44:18 +0200
From: Björn Töpel <bjorn@...nel.org>
To: Pu Lehui <pulehui@...weicloud.com>, bpf@...r.kernel.org,
 linux-riscv@...ts.infradead.org, netdev@...r.kernel.org
Cc: Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann
 <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Martin KaFai
 Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>, Yonghong Song
 <yhs@...com>, John Fastabend <john.fastabend@...il.com>, KP Singh
 <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...gle.com>, Hao Luo
 <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>, Palmer Dabbelt
 <palmer@...belt.com>, Conor Dooley <conor@...nel.org>, Luke Nelson
 <luke.r.nels@...il.com>, Pu Lehui <pulehui@...wei.com>, Pu Lehui
 <pulehui@...weicloud.com>
Subject: Re: [PATCH bpf-next v2 0/6] Zbb support and code simplification for
 RV64 JIT

Pu Lehui <pulehui@...weicloud.com> writes:

> Add Zbb support [0] to optimize code size and performance of RV64 JIT.
> Meanwhile, adjust the code for unification and simplification. Tests
> test_bpf.ko and test_verifier have passed, as well as the relative
> testcases of test_progs*.

Nice work!

Did you measure how the instruction count changed for, say, test_bpf.ko
and test_progs?


Björn