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15.20.8792.034; Mon, 2 Jun 2025 11:15:30 +0000 Content-Type: multipart/alternative; boundary="------------eCU7vwVDf43wDJJ2Koh1hN8M" Message-ID: <36532bcc-c9dd-430a-a932-ec81e9270f19@windriver.com> Date: Mon, 2 Jun 2025 16:45:20 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [OE-core] [RFC] rust: Upgrade 1.85.1->1.86.0 To: Alexander Kanavin Cc: Khem Raj , Patches and discussions about the oe-core layer , "MacLeod, Randy" , "Kokkonda, Sundeep" References: <83e0d268-ec47-4f3a-bf05-2aee4e58e749@windriver.com> <47ba1f68-f67b-4c58-b788-63e06fdf4816@windriver.com> <7571c07b-2225-4449-8169-08b044208072@gmail.com> Content-Language: en-US From: Yash Shinde In-Reply-To: X-ClientProxiedBy: RO2P152CA0027.LAMP152.PROD.OUTLOOK.COM (2603:10d6:10:2c::32) To PH7PR11MB7593.namprd11.prod.outlook.com (2603:10b6:510:27f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH7PR11MB7593:EE_|MN6PR11MB8194:EE_ X-MS-Office365-Filtering-Correlation-Id: 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spamscore=0 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.21.0-2505160000 definitions=main-2506020097 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 02 Jun 2025 11:15:55 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/217714 --------------eCU7vwVDf43wDJJ2Koh1hN8M Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 30-05-2025 18:45, Alexander Kanavin wrote: > CAUTION: This email comes from a non Wind River email account! > Do not click links or open attachments unless you recognize the sender and know the content is safe. > > On Fri, 30 May 2025 at 14:42, Yash Shinde wrote: > >> As Khem mentioned, setting lld = false in config.toml doesn't build LLD. >> Furthermore, using "use-lld = false" ensures that LLD is not used as the >> default linker, >> causing the build to fall back to the system's default linker. This >> restores the earlier behavior. >> Also, the package QA error for rust-lld is not seen with this. > What about build times though? Are they back to what they were? > The build time differences on my machine are as follows: rust version rust upstream builds rust-native (yocto build) rust target (yocto build) v1.85.1 10 mins 20 mins 33 mins v1.86.0 22 mins (with "lld" and "use-lld" set to "false") 30 mins (with default settings i.e lld = true) 31 mins (with "lld" and "use-lld" set to "false") 43 mins (with "lld" and "use-lld" set to "false") Note: The machine being used is a shared resource and fairly busy. Build times may differ due to other user's builds. The FS usage is as follows: Rust version rust upstream builds Yocto rust builds (build/tmp/work/core2-64-poky-linux/rust/1.86.0/rustc-1.86.0-src/build) v1.85.1 4.6 G 6.3 G v1.86.0 15 G 8.8 G The latest rust v1.86.0 upgrade changes are available at: https://git.yoctoproject.org/poky-contrib/log/?h=harish/rust_1.86.0_v2 Regards, Yash > Alex --------------eCU7vwVDf43wDJJ2Koh1hN8M Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit


On 30-05-2025 18:45, Alexander Kanavin wrote:
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On Fri, 30 May 2025 at 14:42, Yash Shinde <Yash.Shinde@windriver.com> wrote:


As Khem mentioned, setting lld = false in config.toml doesn't build LLD.
Furthermore, using "use-lld = false" ensures that LLD is not used as the
default linker,
causing the build to fall back to the system's default linker. This
restores the earlier behavior.
Also, the package QA error for rust-lld is not seen with this.

What about build times though? Are they back to what they were?

The build time differences on my machine are as follows:

rust version
 rust upstream builds
 rust-native (yocto build)
 rust target (yocto build)
v1.85.1
 10 mins
 20 mins
 33 mins
v1.86.0
22 mins (with "lld" and "use-lld" set to "false")
30 mins (with default settings i.e lld = true)

 31 mins (with "lld" and
"use-lld" set to "false")		 43 mins (with "lld" and
"use-lld" set to "false")

Note: The machine being used is a shared resource and fairly busy. Build times may differ due to other user's builds.


The FS usage is as follows:

Rust version
 rust upstream builds
 Yocto rust builds (build/tmp/work/core2-64-poky-linux/rust/1.86.0/rustc-1.86.0-src/build)
v1.85.1
 4.6 G
 6.3 G
v1.86.0
 15 G
 8.8 G

The latest rust v1.86.0 upgrade changes are available at:
https://git.yoctoproject.org/poky-contrib/log/?h=harish/rust_1.86.0_v2


Regards,
Yash

Alex


  


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