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From: Niklas Haas <ffmpeg@haasn.xyz>
To: ffmpeg-devel@ffmpeg.org
Cc: Niklas Haas <git@haasn.dev>
Subject: [FFmpeg-devel] [PATCH] tests/checkasm: fix wrong summation of bench time
Date: Mon, 31 Mar 2025 14:52:54 +0200
Message-ID: <20250331125254.128485-1-ffmpeg@haasn.xyz> (raw)

From: Niklas Haas <git@haasn.dev>

This was changed 8 years ago with the introduction of the linux-perf path,
with seemingly no justification at the time. Likely a developer oversight
from testing.

This bug not only made --runs completely ineffective, but also meant that we
didn't actually correctly filter out outliers.

Fixes: e0d56f097f42bcdbe6c3b2f57df62a4da63f2094
---
 tests/checkasm/checkasm.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
index ede45bcc2a..922e134bfd 100644
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -365,8 +365,8 @@ typedef struct CheckasmPerf {
                 }\
             }\
             emms_c();\
-            perf->cycles += t;\
-            perf->iterations++;\
+            perf->cycles += tsum;\
+            perf->iterations += tcount;\
             checkasm_set_signal_handler_state(0);\
         }\
     } while (0)
-- 
2.48.1

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             reply	other threads:[~2025-03-31 12:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-31 12:52 Niklas Haas [this message]
2025-03-31 13:02 ` Martin Storsjö

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