On 2025-03-14 8:52 a.m., Yash Shinde wrote:

On 14-03-2025 00:18, Randy MacLeod wrote:

On 2025-03-07 6:37 p.m., Richard Purdie wrote:

On Fri, 2025-03-07 at 16:02 -0500, Randy MacLeod wrote:

❯ for i in `ls -d *src`; do du -sh $i; done

3.5G    rustc-1.82.0-src
4.8G    rustc-1.83.0-src
4.9G    rustc-1.84.0-src
3.9G    rustc-1.85.0-src

I didn't check for the other 4 GB yet...

rust, rust-native, nativesdk-rust, cargo and so on.

Should we do that an host the tarball  on yoctoproject.org?

Should we write a custom unpack rule to --exclude=rustc-1.83.0-src/src/gcc ?

Or just delete the directory in a do_unpack postfunc?

Yash has 1.84 mostly working and 

will add a post unpack change to rm -rf rustc-1.83.0-src/src/gcc

Or wait for 1.85?

This likely won't get merged until YP-5.3. We'll see how long it takes to be ready for review.

This is annoying "bloat" which we at least need to identify and work out a plan for.

Next week, I'll also dig into the 'tmp' usage increase to understand where the 5 GB that Richard reported comes from.

See above, I'm guessing so it needs to be confirmed but...

Yashe,

Can you review the reason for the FSspace usage difference between 1.82, 1.83 when you have time?

The following differences were seen when compared the FS usage between v1.82 and v1.83:

I did a basic "bitbake rust" build (in separate dir paths) to check the effect on Yocto build FS:

The TMPDIR FS usage:

TMDIR FS usage                                                                                                                                            v1.82.0                                                          v1.83.0
du -sh poky/build/tmp/                                                                                                                                 65 G                                                               73 G
du -sh  poky/build/tmp/work/core2-64-poky-linux/rust/1.8x.0/rustc-1.8x.0-src/                             9.8 G                                                              12 G


It's more 8G in v1.83.

Thanks Yash!

It's a bit odd that you see an 8G diff and YP AB saw 5 GB but that's close enough for now.

Please run the same analysis for 1.84 update both before and after removing the src/gcc .

Please summarize the data for 1.82, 1.83 and the two sets of data for 1.84.

I'd expect 1.84 + "rm -rf src/gcc" to be somewhat larger than 1.82 but much smaller than 1.83.

TMDIR FS usage                                                               v1.82.0                          v1.83.0                          v1.84.0                          v1.84 + rm -rf src/gcc
du -sh poky/build/tmp/                                                    65 G                               73 G                               73 G                                            72 G

du -sh  poky/build/../1.8x.0/rustc-1.8x.0-src/               9.8 G                             12 G                                12 G                                           11 G

The size of TMPDIR increased from 65 G in 1.82 to 73 G in 1.83 and remained same in 1.84.
After removing "src/gcc"(1.1 G) the size is reduced to 72G.

Thanks,
Yash.

../Randy

The main reason for FS usuage differences in v1.83 are:
1. Addition of gcc  ~1.1 G.2. The addition of enzyme AD sub module ~392 Mb.

References:
https://github.com/rust-lang/rust/commit/9028177115718b38c0a189c4fb9eda03a14841d7
https://github.com/rust-lang/rust/issues/124509
https://github.com/rust-lang/rust/pull/129175 
https://github.com/rust-lang/rust/commit/59d4114b2d1aaac9a6dfe770997f2e79ccfd28ab

Dir	1.82.0	1.83.0	Diff
rustc-1.8x.0-src.tar.xz	210Mb	338Mb	128Mb
rustc-1.8x.0-src	3.5G	4.8G	1.3G

(PS: Please ignore the previous mail.)

Regards,
Yash

../Randy

Cheers,

Richard

-- 
# Randy MacLeod
# Wind River Linux

-- 
# Randy MacLeod
# Wind River Linux

-- 
Regards,
Yash Shinde