wip

Signed-off-by: Joe Isaacs <joe.isaacs@live.co.uk>

Author: joseph-isaacs

scripts/bench-taskset.sh

@@ -18,12 +18,17 @@ fi
 
 
 if [[ -z "${BENCH_CPUS:-}" ]]; then
-    cpu_count="$(nproc)"
-    BENCH_CPUS="2-$((cpu_count - 1))"
+    if command -v numactl >/dev/null 2>&1; then
+        # All CPUs on NUMA node 0, skipping CPUs 0-1 to avoid OS interference
+        BENCH_CPUS=$(numactl --hardware | awk '/^node 0 cpus:/{sep=""; for(i=4;i<=NF;i++){if($i+0>1){printf "%s%s",sep,$i; sep=","}}}')
+    else
+        cpu_count="$(nproc)"
+        BENCH_CPUS="2-$((cpu_count - 1))"
+    fi
 fi
 
 if command -v numactl >/dev/null 2>&1; then
-    exec numactl --physcpubind="$BENCH_CPUS" --localalloc "$@"
+    exec numactl --physcpubind="$BENCH_CPUS" --membind=0 "$@"
 fi
 
 exec taskset -c "$BENCH_CPUS" "$@"