Am seeing a 1GB swap file created on startup under 10.9 on mid-2010 Mini (8/320) and was wondering if anyone else is seeing 1GB swap files created on startup on their machines?
Also - Menu Meters and iStatMenus both report 1GB swap file (and there are 2 files in lib/var/vm) but Activity Monitor shows 0b of swap 'used' and 8GB of VM (in addition to 8GB RAM)
any thoughts/clarification welcomed
Mac mini, OS X Mavericks (10.9)
Normal.
A swap file is generated upon boot automatically. This is space made available by your disk in the event paging out occurs.
thanks nbar - "normal" for Mavericks I presume, as it never occurred on prev versions of OS X - so we have pro-active swap files created in case, rather than reactive, created as required?
added:
I actually have 2 swapfiles - swapfile0 and swapfile1
I understand that swapfile0 is created automatically but I am asking about the 1GB swap file that Mavericks is creating...
sorry for the confusion
Message was edited by: EJW Tas
Yes, same issue here. 1GB seems rather large for the first swapfile to be generated (aside from the one generated on startup)
Same thing here. I was about to ask for this issue in the forums. Now I see it happens to all of us.
Very strange - swapfile0 is 67MB and swapfile 1 is 1.07GB
why should OSX generate a 1.07GB swapfile at startup when we have heard so much about its much-touted memory compression? seems counter-intuitive and counter-productive to generate swapfiles on a HDD when not needed (at startup).
Would be delighted to hear of explanation.
Yes, now I see what you mean. Two swap files are generated at startup . I just checked on my machine as well. This is is not necessarily abnormal behavior, however, since Mavericks now includes a new memory managemt scheme where inactive RAM is 'compressed' in a way so as to prevent virtual memory from being used. This could be a bug, or related to the new memory allocation scheme
swap file on startup
