1*e7776783SApple OSS Distributions #include <darwintest.h> 2*e7776783SApple OSS Distributions #include <sys/resource.h> 3*e7776783SApple OSS Distributions #include <libproc.h> 4*e7776783SApple OSS Distributions 5*e7776783SApple OSS Distributions T_GLOBAL_META(T_META_NAMESPACE("xnu.RM"), 6*e7776783SApple OSS Distributions T_META_RADAR_COMPONENT_NAME("xnu"), 7*e7776783SApple OSS Distributions T_META_RADAR_COMPONENT_VERSION("RM"), 8*e7776783SApple OSS Distributions T_META_OWNER("mwidmann"), 9*e7776783SApple OSS Distributions T_META_CHECK_LEAKS(false)); 10*e7776783SApple OSS Distributions 11*e7776783SApple OSS Distributions T_DECL(rusage_kernel_cpu_time_sanity, 12*e7776783SApple OSS Distributions "ensure the P-CPU time for kernel_task is sane", T_META_ASROOT(true)) 13*e7776783SApple OSS Distributions { 14*e7776783SApple OSS Distributions struct rusage_info_v5 usage_info = { 0 }; 15*e7776783SApple OSS Distributions T_SETUPBEGIN; 16*e7776783SApple OSS Distributions int ret = proc_pid_rusage(0, RUSAGE_INFO_V5, (void **)&usage_info); 17*e7776783SApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage on kernel_task"); 18*e7776783SApple OSS Distributions T_SETUPEND; 19*e7776783SApple OSS Distributions 20*e7776783SApple OSS Distributions T_EXPECT_GT(usage_info.ri_system_time + usage_info.ri_user_time, 21*e7776783SApple OSS Distributions UINT64_C(0), "kernel CPU time should be non-zero"); 22*e7776783SApple OSS Distributions } 23