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Message-Id: <20260127-arm64-selftests-fp-pidbench-post-sve-v1-2-3c78eda0d58b@kernel.org> Date: Tue, 27 Jan 2026 16:16:15 +0000 From: Mark Brown <broonie@...nel.org> To: Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Shuah Khan <shuah@...nel.org> Cc: linux-arm-kernel@...ts.infradead.org, linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org> Subject: [PATCH 2/2] kselftest/arm64: Raise default number of loops in fp-pidbench When fp-pidbench was originally written SVE hardware was not widely available so it was useful to run it in emulation and the default number of loops was set very low, running for less than a second on actual hardware. Now that SVE hardware is reasonably available it is very much less interesting to use emulation, bump the default number of loops up to even out a bit of the noise on real systems. On the machine I have to hand this now takes about 15s which is still a toy microbenchmark but perhaps a bit more useful. Signed-off-by: Mark Brown <broonie@...nel.org> --- tools/testing/selftests/arm64/fp/fp-pidbench.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/arm64/fp/fp-pidbench.S b/tools/testing/selftests/arm64/fp/fp-pidbench.S index aeeadc7873dc..881dfa3b342e 100644 --- a/tools/testing/selftests/arm64/fp/fp-pidbench.S +++ b/tools/testing/selftests/arm64/fp/fp-pidbench.S @@ -33,7 +33,7 @@ function _start puts "Iterations per test: " mov x20, #10000 - lsl x20, x20, #8 + lsl x20, x20, #12 mov x0, x20 bl putdec puts "\n" -- 2.47.3
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