Mach Virtual Memory Statistics: (page size of 4096 bytes)
Pages free: 438386.
Pages active: 236438.
Pages inactive : 113750.
Pages speculative: 34293.
Pages wired down: 225027.
"Translation faults": 11132566.
Pages copy-on-write: 319385.
Pages zero filled: 6618647.
Pages reactivated: 23071.
Pageins: 421804.
Pageouts: 153240.
Object cache: 14 hits of 24183 lookups (0% hit rate)< /pre>But when I run Activity Monitor, I get something like:
Page Ins: 1.61gb (8.00kb/sec)
Page outs: 598.6 MBI have a question: how to release the page in vmstat so small (compared to activity monitor)
I am trying to write a mac os program to monitor the system (similar to the activity monitor ). I checked the function vm_stat and when I ran it, I got this:
Mach Virtual Memory Statistics: (page size of 4096 bytes)
Pages free: 438386.
Pages active: 236438.
Pages inactive: 113750.
Pages speculative: 34293.
Pages wired down: 225027.
"Translation faults": 11132566.
Pages copy-on-write: 319385.
Pages zero filled: 6618647.
Pages reactivated: 23071.
Pageins: 421804.
Pageouts : 153240.
Object cache: 14 hits of 24183 lookups (0% hit rate)
But when I run Activity Monitor, I get something like this:
Page Ins: 1.61gb (8.00kb/sec)
Page outs: 598.6 MB
I have a question: how to release pages in vmstat so small (with activity monitoring (Compared with the device)
Assuming that the page is 4096 bytes, 256 is the number of pages in one megabyte (256 pages * 4096 bytes per page = 1048576 Bytes, i.e. 220 bytes, i.e. 1 megabyte). The number from vm_stat is in the page, it also tells you that the page size is 4096 bytes, so you don't need to hard code 256.> Since you are not showing the Activity Monitor For comparison I can't say with certainty, but I suspect this is due to the fact that vm_stat uses page units and Activity Monitor uses "human readable" units, and they are indeed the same value (or, if Activity Monitor is continuously updated, it is closed). /p>