Using the keys, I'm able to get a kinfo_proc instance. I'm a little scared of that, because I don't want to put my users at risk. Perhaps running as root could alleviate that, but that would involve making a priviliedged helper akin to the existing sysmond that Activity Monitor.app uses. It doesn't work for processes owned by other users. Listing a table of processes now takes O(proces_count) rather than just O(process_count), and causes way more syscalls to be made Summing these, I could get the total for an app. Using proc_pidinfo with PROC_PIDTHREADINFO, I'm able to get each thread of an app, with its associated CPU usage percentage. I detail my research below.Īny pointers in the right direction would be much appreciated!įirst I looked at libproc. I've gone to great lengths to try to find this information myself, and at this point I'm just struggling.
Ideally, I want to go through public headers/frameworks. I would like to list the top CPU-using processes.Īs Quinn “The Eskimo!” has repeatedly cautioned, relying on private frameworks is just begging for maintenance effort in the future. I tried sysctl machdep.cpu, but it didn't retrieve CPU core ID.I'm working on an app that contains a mini system monitoring utility. Model name : Intel(R) Core(TM) i5-7267U CPU 3.10GHzįlags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good xtopology nonstop_tsc unfair_spinlock eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti retpoline fsgsbase avx2 invpcid rdseed flush_l1dĪddress sizes : 39 bits physical, 48 bits virtualĭoes macOS/OS X have a command to retrieve detailed CPU and CPU cores information equal to Linux /proc/cpuinfo? I really want to know a CLI command to retrieve the Mac's CPU core ID. Using this command, users can get CPU and CPU's core information like below. Linux has a command to retrieve detailed CPU information using cat /proc/cpuinfo.
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