My MacBook Pro has 8G RAM. Recently memory leak offen happened. Page outs and swap used kept increasing. The last time it used ~8G swap space.
But in Activity Monitor, I can't find any process has a large value in 'Real Mem', 'Private Mem' nor 'Shared Mem' column.
I checked the %MEM column in output of 'ps -ev', all processes occupied less than 1% of memory. The full output is put in this gist: https://gist.github.com/aleung/4760556
What the way to diagnose OSX memory leak issue?
Best Answer
Check with this command (will show more processes):
if won't help, check with
fs_usage
to display system calls and page faults related to filesystem:especially page in and out by appending the following to above command:
Add extra
| grep -v kernel
to ignore kernel process or| grep -v 0.00
to show these with higher time spent.If your swap is big, you can force disk cache to be flushed and emptied by:
sudo purge
.Based on my experience, OS X have some issues with managing the memory after higher uptime (when it used all of free memory), so sometimes only full restart may help.
Check also
sudo iotop
orsudo vm_stat 1
commands which may help.See also: How to investigate high kernel task memory usage?