From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 6/6] configure: enable Linux perf on RISC-V by default
Date: Wed, 19 Jul 2023 22:55:40 +0300
Message-ID: <20230719195540.46961-6-remi@remlab.net> (raw)
In-Reply-To: <2113654.OBFZWjSADL@basile.remlab.net>
Now that checkasm can automatically fall back to RDCYCLE, it is safe to
enable this for forward compatibility with kernel versions mitigating
the "Cycle Drift" side channel attack.
Where available, this should also reduce measurement noise, since
kernel and hypervisor cycles should no longer be counted.
---
configure | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure b/configure
index b018abf139..c60e8d3438 100755
--- a/configure
+++ b/configure
@@ -5753,7 +5753,7 @@ case $target_os in
;;
linux)
enable section_data_rel_ro
- enabled_any arm aarch64 && enable_weak linux_perf
+ enabled_any arm aarch64 riscv && enable_weak linux_perf
;;
irix*)
target_os=irix
--
2.40.1
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prev parent reply other threads:[~2023-07-19 19:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 19:55 [FFmpeg-devel] [PATCHv3 0/6] RISC-V Linux perf run-time enablement Rémi Denis-Courmont
2023-07-19 19:55 ` [FFmpeg-devel] [PATCH 1/6] checkasm: make perf macros functional Rémi Denis-Courmont
2023-07-19 19:55 ` [FFmpeg-devel] [PATCH 2/6] checkasm: use pointers for start/stop functions Rémi Denis-Courmont
2023-07-19 20:34 ` Lynne
2023-07-19 19:55 ` [FFmpeg-devel] [PATCH 3/6] checkasm: remove unused variables Rémi Denis-Courmont
2023-07-19 19:55 ` [FFmpeg-devel] [PATCH 4/6] checkasm: make bench clean-up also a function pointer Rémi Denis-Courmont
2023-07-19 19:55 ` [FFmpeg-devel] [PATCH 5/6] checkasm: allow run-time fallback to AV_READ_TIME Rémi Denis-Courmont
2023-07-19 19:55 ` Rémi Denis-Courmont [this message]
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