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set thp:never during build

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This commit is contained in:
Conrad Ludgate
2024-10-03 14:54:10 +01:00
parent 37f5a6434b
commit 4673dd6d29
3 changed files with 8 additions and 4 deletions
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1
Dockerfile
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@@ -42,6 +42,7 @@ COPY --from=pg-build /home/nonroot/pg_install/v17/lib pg_i
COPY --chown=nonroot . .
ARG ADDITIONAL_RUSTFLAGS
ENV _RJEM_MALLOC_CONF="thp:never"
RUN set -e \
&& PQ_LIB_DIR=$(pwd)/pg_install/v${STABLE_PG_VERSION}/lib RUSTFLAGS="-Clinker=clang -Clink-arg=-fuse-ld=mold -Clink-arg=-Wl,--no-rosegment ${ADDITIONAL_RUSTFLAGS}" cargo build \
--bin pg_sni_router \

2
proxy/src/bin/proxy.rs
View File

@@ -297,7 +297,7 @@ async fn main() -> anyhow::Result<()> {
build_tag: BUILD_TAG,
});
proxy::jemalloc::disable_thp()?;
proxy::jemalloc::inspect_thp()?;
let jemalloc = match proxy::jemalloc::MetricRecorder::new() {
Ok(t) => Some(t),
Err(e) => {

9
proxy/src/jemalloc.rs
View File

@@ -10,6 +10,7 @@ use measured::{
LabelGroup, MetricGroup,
};
use tikv_jemalloc_ctl::{config, epoch, epoch_mib, stats, version, Access, AsName, Name};
use tracing::info;
pub struct MetricRecorder {
epoch: epoch_mib,
@@ -115,7 +116,9 @@ jemalloc_gauge!(metadata, metadata_mib);
jemalloc_gauge!(resident, resident_mib);
jemalloc_gauge!(retained, retained_mib);
pub fn disable_thp() -> Result<(), tikv_jemalloc_ctl::Error> {
let opt_thp: &Name = "opt.thp".name();
opt_thp.write("never")
pub fn inspect_thp() -> Result<(), tikv_jemalloc_ctl::Error> {
let opt_thp: &Name = c"opt.thp".to_bytes_with_nul().name();
let s: &str = opt_thp.read()?;
info!("jemalloc opt.thp {s}");
Ok(())
}