From: Dominik Csapak <d.csapak@proxmox.com>
To: pdm-devel@lists.proxmox.com
Subject: [PATCH datacenter-manager 2/3] ui: d/rules: use thin instead of fat LTO
Date: Mon, 6 Jul 2026 13:44:05 +0200 [thread overview]
Message-ID: <20260706114822.2751086-3-d.csapak@proxmox.com> (raw)
In-Reply-To: <20260706114822.2751086-1-d.csapak@proxmox.com>
fat LTO merges all LLVM modules into a single unit for optimizing.
Changing this to thin LTO increases the uncompressed binary size by 1.59
MiB (+11%) (compressed +192KiB/+4.6%) but save us ~160s (-40%) of (wall)
build time during a 'make deb'.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
ui/debian/rules | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ui/debian/rules b/ui/debian/rules
index b3b3b078..8ffa868a 100755
--- a/ui/debian/rules
+++ b/ui/debian/rules
@@ -28,7 +28,7 @@ endif
$(CARGO) prepare-debian $(CURDIR)/debian/cargo_registry --link-from-system
sed -e 's/^debug = true$$/debug = false/g' debian/cargo_home/config.toml
- echo "\nlto=\"fat\"" >> debian/cargo_home/config.toml
+ echo "\nlto=\"thin\"" >> debian/cargo_home/config.toml
echo "\nopt-level=\"s\"" >> debian/cargo_home/config.toml
echo "\ncodegen-units=1" >> debian/cargo_home/config.toml
# patch cargo_home config to use lld with wasm, otherwise the build fails
--
2.47.3
next prev parent reply other threads:[~2026-07-06 11:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 11:44 [PATCH datacenter-manager 0/3] ui: reduce compilation time for relase builds Dominik Csapak
2026-07-06 11:44 ` [PATCH datacenter-manager 1/3] ui: d/rules: don't generate debuginfo for the UI Dominik Csapak
2026-07-07 14:18 ` Fabian Grünbichler
2026-07-06 11:44 ` Dominik Csapak [this message]
2026-07-07 14:05 ` [PATCH datacenter-manager 2/3] ui: d/rules: use thin instead of fat LTO Fabian Grünbichler
2026-07-07 14:10 ` Dominik Csapak
2026-07-07 14:51 ` Fabian Grünbichler
2026-07-06 11:44 ` [PATCH datacenter-manager 3/3] ui: d/rules: don't limit compilation to 1 codgen-unit Dominik Csapak
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