cgroup-limit: support running test where DOTNET_PROCESSOR_COUNT is set.

Author: tmds

cgroup-limit/test.sh

@@ -14,21 +14,6 @@ if [[ "$(stat -f -c "%T" /sys/fs/cgroup)" == "cgroup2fs" ]] ; then
     CGROUPV2=true
 fi
 
-if [[ $CGROUPV2 == true ]] && [[ $(dotnet --version) == "3."* ]]; then
-    echo "cgroup v2 is not fully supported on .NET Core 3.x. Skipping."
-    exit 0
-fi
-
-# For mono-based runtimes (ppc64le, s390x), cgroup support is only functional
-# on .NET 7.0 and later.
-if [[ "$(uname -m)" == "s390x" ]] || [[ "$(uname -m)" == "ppc64le" ]] ; then
-  IFS='.-' read -ra VERSION <<< "${1:-$(dotnet --version)}"
-  if [[ "${VERSION[0]}" -lt "7" ]]; then
-    echo "cgroup support is not available on Mono-based runtimes before .NET 7. Skipping."
-    exit 0
-  fi
-fi
-
 if [ -z "$(command -v systemctl)" ]; then
     echo "Environment does not use systemd"
     exit 0
@@ -41,18 +26,17 @@ if [ "$UID" != "0" ]; then
   if ! grep -q "cpu" "/sys/fs/cgroup/user.slice/user-$UID.slice/user@$UID.service/cgroup.controllers" ; then
     # user can't set cpu limits, use sudo.
     SYSTEMD_RUN="sudo -n $SYSTEMD_RUN"
-
-    # Pass DOTNET_ROOT to support testing against a dotnet tarball.
-    # On RHEL 7 we don't pass the envvar because systemd-run doesn't support '-E' yet and the envvar is passed by default.
-    if [[ "$runtime_id" != "rhel.7"* ]]; then
-       SYSTEMD_RUN="$SYSTEMD_RUN -E DOTNET_ROOT=$DOTNET_ROOT"
-    fi
   else
     # run on behalf of user.
     SYSTEMD_RUN="$SYSTEMD_RUN --user"
   fi
 fi
 
+# Pass DOTNET_ROOT to support testing against a dotnet tarball.
+SYSTEMD_RUN="$SYSTEMD_RUN -E DOTNET_ROOT=$DOTNET_ROOT"
+# Unset DOTNET_PROCESSOR_COUNT so .NET won't return its value instead of the cgroup CPU limit.
+SYSTEMD_RUN="$SYSTEMD_RUN -E DOTNET_PROCESSOR_COUNT="
+
 memory_args="-p MemoryLimit=100M"
 if [[ $CGROUPV2 == true ]]; then
     memory_args="-p MemoryMax=100M"