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Support jemalloc as the default allocator on Linux (#7250)

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Add jemalloc as an alternative malloc implementation for the Verilator
binary. When both tcmalloc and jemalloc are available, jemalloc is
preferred due to its better performance on RTLMeter.

The new --enable-jemalloc flag (default=check) mirrors the existing
--enable-tcmalloc behavior: auto-detected at configure time, supports
both static and dynamic linking, and is disabled when --enable-dev-asan
is active.
This commit is contained in:
Yangyu Chen
2026-03-13 17:08:15 -04:00
committed by GitHub
parent 7cd49a8028
commit bb5a9dc247
8 changed files with 78 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
.github/workflows/reusable-rtlmeter-build.yml
+2 -2
View File
@@ -36,8 +36,8 @@ jobs:
echo "path-exclude /usr/share/info/*" | sudo tee -a /etc/dpkg/dpkg.cfg.d/01_nodoc
sudo apt update || \
sudo apt update
sudo apt install ccache mold help2man libfl-dev libgoogle-perftools-dev libsystemc-dev || \
sudo apt install ccache mold help2man libfl-dev libgoogle-perftools-dev libsystemc-dev
sudo apt install ccache mold help2man libfl-dev libjemalloc-dev libsystemc-dev || \
sudo apt install ccache mold help2man libfl-dev libjemalloc-dev libsystemc-dev
- name: Use saved ccache
uses: actions/cache@v5
.github/workflows/reusable-rtlmeter-run.yml
+2 -2
View File
@@ -60,8 +60,8 @@ jobs:
echo "path-exclude /usr/share/info/*" | sudo tee -a /etc/dpkg/dpkg.cfg.d/01_nodoc
sudo apt update || \
sudo apt update
sudo apt install ccache mold libfl-dev libgoogle-perftools-dev libsystemc-dev || \
sudo apt install ccache mold libfl-dev libgoogle-perftools-dev libsystemc-dev
sudo apt install ccache mold libfl-dev libjemalloc-dev libsystemc-dev || \
sudo apt install ccache mold libfl-dev libjemalloc-dev libsystemc-dev
- name: Download Verilator installation archive
uses: actions/download-artifact@v8