profile or just close the terminal and open it again. To apply these changes you can either type. This means when you run the command top it will call top -o cpu instead.
In there you just need to add the line alias top="top -o cpu" This file should be in your home directory but if you don’t have one you can just create one with the command touch ~/.profile To do this you can create an alias in your ‘.profile’ file. Which is great but I don’t really want to be typing this in every time, I want it to be the default. So to order by cpu on a mac you give the command top -o cpu To change this you can give some extra parameters to set the ordering. However when you run top in OS X it orders by pid, so the newest processes are at the top. I’m used to having it ordered by highest processor usage at the top on linux, which I find the most useful as generally when I run top I’m looking to see what is chewing up my cpu. One difference which as been bugging me recently is that way that the top command orders itself. Because top shows per CPU thread usage.2 minute read #alias, #bash, #os-x, #terminal, #topĪs I come from a linux background but seem to spend more and more of my free time using OS X I keep noticing little differences in the way the command line works on a mac. If top percentage showed the per core usage, the value must have been 50% but it's not. Only CPU thread 3 out of 48 CPUs is using 100% CPU: Then in the same terminal of top, I pressed 1 to see the per CPU usage.On a separate thread, I ran top and verified bash is using around 100% cpu:.$ while true do x="reee" x="asdasd" z="asdasdasd " done
I did the following steps to verify the above answer: Each different item in every column has an unique ID # The following is the parsable format, which can be fed to other Running lscpu -p provide a decent print of the cores and CPUs: $ lscpu -p For example, on a server with 24 cores and 2 threads per core (total of 48 CPUs), the usage could go up to 4800. If hyper threading is enabled, the CPU usage shown in top is the usage per CPU, not core.
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