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CaptainBlood
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Joined: 24 Jan 2010
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 Posted: Tue Apr 23, 2024 6:15 pm Post subject: user defined lto rust based build packages |
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Just succeeded lto-fat user defined built.
-10.92% binray shrink  gui-apps/eww::guru
Build has big ram use though low on ressources here.
More tests required before publishing on how 2.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. "
Last edited by CaptainBlood on Thu Aug 01, 2024 8:11 am; edited 3 times in total |
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CaptainBlood
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| Posted: Tue Apr 23, 2024 7:52 pm Post subject: |
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Another one with -11.04 media-sound/helvum
Thks 4 ur attention, interest & support
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. "
Last edited by CaptainBlood on Tue Apr 23, 2024 9:35 pm; edited 1 time in total |
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CaptainBlood
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| Posted: Tue Apr 23, 2024 8:12 pm Post subject: |
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Ouch +0.11 this time, building still  app-shells/mcfly
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. "
Last edited by CaptainBlood on Tue Apr 23, 2024 9:36 pm; edited 1 time in total |
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CaptainBlood
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| Posted: Tue Apr 23, 2024 9:31 pm Post subject: |
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Okay,
It's all about adding the following to RUSTFLAGS:
| Code: | -Clto=fat
-Cembed-bitcode=yes |
packages referencing proc-macro* crates also requirehere.
rust compiler requires it when needed.
Achieved with | Code: | dev-lang/rust
Installed versions: 1.77.1(stable/1.77)^t(08:53:51 15/04/2024)(clippy doc miri nightly profiler rust-analyzer rust-src rustfmt system-bootstrap verify-sig wasm -big-endian -debug -dist -llvm-libunwind -lto -parallel-compiler -system-llvm -test ABI_MIPS="-n32 -n64 -o32" ABI_S390="-32 -64" ABI_X86="64 -32 -x32" CPU_FLAGS_X86="sse2" LLVM_TARGETS="WebAssembly X86 -AArch64 -AMDGPU -ARC -ARM -AVR -BPF -CSKY -DirectX -Hexagon -Lanai -LoongArch -M68k -MSP430 -Mips -NVPTX -PowerPC -RISCV -SPIRV -Sparc -SystemZ -VE -XCore -Xtensa") |
Plz note some packages already have lto directive; some will have their size increased when adding as described above (e.g. sys-apps/fd)
Thks 4 ur attention, interest & support
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. "
Last edited by CaptainBlood on Thu Aug 01, 2024 8:12 am; edited 1 time in total |
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CaptainBlood
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| Posted: Thu May 02, 2024 5:14 pm Post subject: |
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gui-wm/niri::guru gains 14.27% here.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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CaptainBlood
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Posts: 3848
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| Posted: Tue Jul 23, 2024 7:40 pm Post subject: |
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sys-apps/fd has tiny .1% size gain
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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CaptainBlood
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Posts: 3848
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| Posted: Thu Aug 01, 2024 8:03 am Post subject: |
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app-containers/aardvark-dns has a nice 18% shrink
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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Zucca
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| Posted: Thu Aug 01, 2024 10:31 am Post subject: |
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Have you measured compilation time and ram usage with these optimizations on and off?
And say, for example helvum, how much in bytes you save on disk?
I guess performance gains vary greatly between programs? ... If it's even measurable.
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..: Zucca :..
| My gentoo installs: | init=/sbin/openrc-init
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CaptainBlood
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| Posted: Thu Aug 01, 2024 6:16 pm Post subject: |
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| Zucca wrote: | | Have you measured compilation time and ram usage with these optimizations on and off? |
No I'm focusing on binary size only.
Time shouldn't be 2 difficult to get.
No idea how to deal with compilation ram usage.
Tips welcome.
| Zucca wrote: | | And say, for example helvum, how much in bytes you save on disk? |
About 12.51% size shrink.
| Zucca wrote: | | I guess performance gains vary greatly between programs? ... If it's even measurable. |
No idea. Focusing on ram/disk savings.
Side note: jcc bug compensation here, which adds bytes on both sizes, expected to be of comparable amounts.
This jcc lowers the %.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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Zucca
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| Posted: Thu Aug 01, 2024 6:52 pm Post subject: |
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| CaptainBlood wrote: | | Zucca wrote: | | And say, for example helvum, how much in bytes you save on disk? |
About 12.51% size shrink. |
... and in bytes?
_________________
..: Zucca :..
| My gentoo installs: | init=/sbin/openrc-init
-systemd -logind -elogind seatd |
| Quote: | | I am NaN! I am a man! |
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CaptainBlood
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| Posted: Thu Aug 01, 2024 9:15 pm Post subject: |
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| Zucca wrote: | | CaptainBlood wrote: | | Zucca wrote: | | And say, for example helvum, how much in bytes you save on disk? |
About 12.51% size shrink. |
... and in bytes? |
------------------
jcc mitigation:
lto no:
-rwxr-xr-x 1 root root 1104400 août 1 22:53 /usr/bin/helvum
lto:
-rwxr-xr-x 1 root root 981520 août 1 21:03 /usr/bin/helvum
size gain: (1104400-981520)*100/981520=12.51%
----------------------
jcc no mitigation:
lto no:
-rwxr-xr-x 1 root root 1092112 août 1 23:10 /usr/bin/helvum
lto:
-rwxr-xr-x 1 root root 961040 août 2 00:03 /usr/bin/helvum
size gain: (1092112-961040)*100/961040=13.63%
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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Zucca
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| Posted: Fri Aug 02, 2024 11:04 pm Post subject: |
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Seems like not worth for me.
Maybe for some SBC or embedded system at some corner cases. Of if I'd want to shrink my initramfs, which does not contain any rust packages at the moment anyways.
_________________
..: Zucca :..
| My gentoo installs: | init=/sbin/openrc-init
-systemd -logind -elogind seatd |
| Quote: | | I am NaN! I am a man! |
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CaptainBlood
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| Posted: Sun Aug 04, 2024 1:44 pm Post subject: |
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| Zucca wrote: | Seems like not worth for me.
Maybe for some SBC or embedded system at some corner cases. Of if I'd want to shrink my initramfs, which does not contain any rust packages at the moment anyways. |
Sounds like your mind was made already, i.e. before my last post. 
Side note:
At least rust build packages resulting in standalone static binaries may be good candidates for app-arch/upx compression.
Here are the numbers for the package you seemed concerned about: | Code: | acer /usr/bin # upx --ultra-brute helvum
Ultimate Packer for eXecutables
Copyright (C) 1996 - 2024
UPX 4.2.3 Markus Oberhumer, Laszlo Molnar & John Reiser Mar 27th 2024
File size Ratio Format Name
-------------------- ------ ----------- -----------
961040 -> 324620 33.78% linux/amd64 helvum
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Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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Zucca
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| Posted: Sun Aug 04, 2024 7:01 pm Post subject: |
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I'm not really interested in any particular package. I'm just gathering some info for the future.
I've been putting together some initramfs based live environments (for rescue, file copying, dignostics). Size matter there when you have only, say, 2GB of RAM.
Still at the planning stage.
_________________
..: Zucca :..
| My gentoo installs: | init=/sbin/openrc-init
-systemd -logind -elogind seatd |
| Quote: | | I am NaN! I am a man! |
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CaptainBlood
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| Posted: Sun Aug 04, 2024 8:02 pm Post subject: |
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Very out of topic:
| Zucca wrote: | | initramfs... |
Still at the planning stage here for more than decade...
The main purpose I feel its need would be disk encryption...
But still feel very uncomfortable about how to & recovery.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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CaptainBlood
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Posts: 3848
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| Posted: Mon Aug 05, 2024 9:31 pm Post subject: |
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First case where lto is bigger: | Code: | lto-no: -rwxr-xr-x 1 root root 11650080 août 6 00:08 /usr/bin/broot
lto: -rwxr-xr-x 1 root root 11699232 août 6 00:22 /usr/bin/broot |
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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CaptainBlood
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Posts: 3848
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| Posted: Thu Aug 15, 2024 12:09 pm Post subject: |
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| CaptainBlood wrote: | | -rwxr-xr-x 1 root root 961040 août 2 00:03 /usr/bin/helvum |
rust 1.80.1 instead of 1.79.0 is improving: | Code: | | -rwxr-xr-x 1 root root 932080 août 15 14:57 /usr/bin/helvum |
Thks 4 ur attention , interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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