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0988e2d9d6
* feat(docker): add jemalloc to reduce memory fragmentation Install libjemalloc2 in the base image and preload it via LD_PRELOAD in docker-entrypoint when available. Reduces RSS growth from glibc's default allocator fragmentation under Rails workloads. * feat(docker): add DISABLE_JEMALLOC env var + preserve existing LD_PRELOAD * feat(docker): add jemalloc status logging to entrypoint * refactor(docker): simplify jemalloc logging to warn-only when disabled/missing
19 lines
599 B
Bash
Executable File
19 lines
599 B
Bash
Executable File
#!/bin/bash -e
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# Use jemalloc to reduce memory fragmentation if available
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JEMALLOC="/usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2"
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if [ -f "$JEMALLOC" ] && [ -z "${DISABLE_JEMALLOC}" ]; then
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export LD_PRELOAD="${LD_PRELOAD:+$LD_PRELOAD:}$JEMALLOC"
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else
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[ -n "${DISABLE_JEMALLOC}" ] \
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&& echo "WARNING: jemalloc disabled via DISABLE_JEMALLOC" \
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|| echo "WARNING: jemalloc not found at $JEMALLOC, skipping"
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fi
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# If running the rails server then create or migrate existing database
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if [ "${1}" == "./bin/rails" ] && [ "${2}" == "server" ]; then
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./bin/rails db:prepare
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fi
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exec "${@}"
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