diff --git a/cgroup.c b/cgroup.c
index 21d6f68..8ffd25a 100644
--- a/cgroup.c
+++ b/cgroup.c
@@ -169,7 +169,7 @@ static bool cgroupInitNsFromParentCpu(struct nsjconf_t* nsjconf, pid_t pid) {
 
 	char fname[PATH_MAX];
 	char cpu_ms_per_sec_str[512];
-	snprintf(cpu_ms_per_sec_str, sizeof(cpu_ms_per_sec_str), "0x%x",
+	snprintf(cpu_ms_per_sec_str, sizeof(cpu_ms_per_sec_str), "%u",
 	    nsjconf->cgroup_cpu_ms_per_sec * 1000U);
 	snprintf(fname, sizeof(fname), "%s/cpu.cfs_quota_us", cpu_cgroup_path);
 	LOG_D("Setting '%s' to '%s'", fname, cpu_ms_per_sec_str);
@@ -179,6 +179,15 @@ static bool cgroupInitNsFromParentCpu(struct nsjconf_t* nsjconf, pid_t pid) {
 		return false;
 	}
 
+	const char cpu_period_us[] = "1000000";
+	snprintf(fname, sizeof(fname), "%s/cpu.cfs_period_us", cpu_cgroup_path);
+	LOG_D("Setting '%s' to '%s'", fname, cpu_period_us);
+	if (!utilWriteBufToFile(
+		fname, cpu_period_us, strlen(cpu_period_us), O_WRONLY | O_CLOEXEC)) {
+		LOG_E("Could not update cpu period");
+		return false;
+	}
+
 	char pid_str[512];
 	snprintf(pid_str, sizeof(pid_str), "%d", (int)pid);
 	snprintf(fname, sizeof(fname), "%s/tasks", cpu_cgroup_path);
diff --git a/cmdline.c b/cmdline.c
index f425874..937ea36 100644
--- a/cmdline.c
+++ b/cmdline.c
@@ -363,13 +363,13 @@ bool cmdlineParse(int argc, char* argv[], struct nsjconf_t* nsjconf) {
 	    .cgroup_mem_max = (size_t)0,
 	    .cgroup_pids_mount = "/sys/fs/cgroup/pids",
 	    .cgroup_pids_parent = "NSJAIL",
-	    .cgroup_pids_max = (unsigned int)0,
+	    .cgroup_pids_max = 0U,
 	    .cgroup_net_cls_mount = "/sys/fs/cgroup/net_cls",
 	    .cgroup_net_cls_parent = "NSJAIL",
-	    .cgroup_net_cls_classid = (unsigned int)0,
+	    .cgroup_net_cls_classid = 0U,
 	    .cgroup_cpu_mount = "/sys/fs/cgroup/cpu",
 	    .cgroup_cpu_parent = "NSJAIL",
-	    .cgroup_cpu_ms_per_sec = (unsigned int)0,
+	    .cgroup_cpu_ms_per_sec = 0U,
 	    .iface_no_lo = false,
 	    .iface_vs = NULL,
 	    .iface_vs_ip = "0.0.0.0",