From: "Steve" <star@gmx.li>
To: poky@lists.yoctoproject.org
Subject: [poky] gcc11.3 (?) optimization performance problems
Date: Wed, 23 Nov 2022 18:28:10 +0100 [thread overview]
Message-ID: <c615aa2d-b8f3-913d-0a0c-a85037788752@gmx.li> (raw)
Hello, I switched my poky distro (and SDK to compile) to 4.0.5 - running
an CortexA53 with 4 cores (before it was 4.0.0 I think).
My test application simple average over an array of 5 million bytes
takes now around 8 times as long as before.
What is changed is gcc from 11.2 to 11.3. Can this be the reason?
Compiler options, eg -O3 keeps same. Is there indeed a regression?
The speed neither depends on rootfs nor kernel. Just the compiler/SDK
decides wether the compiled app is fast or slow.
Best regards, Steve
next reply other threads:[~2022-11-23 17:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-23 17:28 Steve [this message]
2022-11-23 19:52 ` [poky] gcc11.3 (?) optimization performance problems Khem Raj
2022-11-24 8:12 ` Steve
[not found] ` <172A77114EC2E04B.11309@lists.yoctoproject.org>
2022-11-25 6:30 ` Steve
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