1*e3723e1fSApple OSS Distributions<h2>vm_statistics</h2> 2*e3723e1fSApple OSS Distributions<hr> 3*e3723e1fSApple OSS Distributions<p> 4*e3723e1fSApple OSS Distributions<strong>Structure</strong> - Defines statistics for the kernel's use of virtual memory. 5*e3723e1fSApple OSS Distributions<h3>SYNOPSIS</h3> 6*e3723e1fSApple OSS Distributions<pre> 7*e3723e1fSApple OSS Distributions<strong>struct vm_statistics</strong> 8*e3723e1fSApple OSS Distributions<strong>{</strong> 9*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>free_count</var><strong>;</strong> 10*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>active_count</var><strong>;</strong> 11*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>inactive_count</var><strong>;</strong> 12*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>wire_count</var><strong>;</strong> 13*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>zero_fill_count</var><strong>;</strong> 14*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>reactivations</var><strong>;</strong> 15*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>pageins</var><strong>;</strong> 16*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>pageouts</var><strong>;</strong> 17*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>faults</var><strong>;</strong> 18*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>cow_faults</var><strong>;</strong> 19*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>lookups</var><strong>;</strong> 20*e3723e1fSApple OSS Distributions <strong>integer_t</strong> <var>hits</var><strong>;</strong> 21*e3723e1fSApple OSS Distributions<strong>};</strong> 22*e3723e1fSApple OSS Distributions 23*e3723e1fSApple OSS Distributions<strong>typedef struct vm_statistics* vm_statistics_t;</strong> 24*e3723e1fSApple OSS Distributions</pre> 25*e3723e1fSApple OSS Distributions<h3>FIELDS</h3> 26*e3723e1fSApple OSS Distributions<dl> 27*e3723e1fSApple OSS Distributions<dt> <var>free_count</var> 28*e3723e1fSApple OSS Distributions<dd> 29*e3723e1fSApple OSS DistributionsThe total number of free pages in the system. 30*e3723e1fSApple OSS Distributions<p> 31*e3723e1fSApple OSS Distributions<dt> <var>active_count</var> 32*e3723e1fSApple OSS Distributions<dd> 33*e3723e1fSApple OSS DistributionsThe total number of pages currently in use and pageable. 34*e3723e1fSApple OSS Distributions<p> 35*e3723e1fSApple OSS Distributions<dt> <var>inactive_count</var> 36*e3723e1fSApple OSS Distributions<dd> 37*e3723e1fSApple OSS DistributionsThe number of inactive pages. 38*e3723e1fSApple OSS Distributions<p> 39*e3723e1fSApple OSS Distributions<dt> <var>wire_count</var> 40*e3723e1fSApple OSS Distributions<dd> 41*e3723e1fSApple OSS DistributionsThe number of pages that are wired in memory and cannot be paged 42*e3723e1fSApple OSS Distributionsout. 43*e3723e1fSApple OSS Distributions<p> 44*e3723e1fSApple OSS Distributions<dt> <var>zero_fill_count</var> 45*e3723e1fSApple OSS Distributions<dd> 46*e3723e1fSApple OSS DistributionsThe number of zero-fill pages. 47*e3723e1fSApple OSS Distributions<p> 48*e3723e1fSApple OSS Distributions<dt> <var>reactivations</var> 49*e3723e1fSApple OSS Distributions<dd> 50*e3723e1fSApple OSS DistributionsThe number of reactivated pages. 51*e3723e1fSApple OSS Distributions<p> 52*e3723e1fSApple OSS Distributions<dt> <var>pageins</var> 53*e3723e1fSApple OSS Distributions<dd> 54*e3723e1fSApple OSS DistributionsThe number of requests for pages from a pager (such as the i-node 55*e3723e1fSApple OSS Distributionspager). 56*e3723e1fSApple OSS Distributions<p> 57*e3723e1fSApple OSS Distributions<dt> <var>pageouts</var> 58*e3723e1fSApple OSS Distributions<dd> 59*e3723e1fSApple OSS DistributionsThe number of pages that have been paged out. 60*e3723e1fSApple OSS Distributions<p> 61*e3723e1fSApple OSS Distributions<dt> <var>faults</var> 62*e3723e1fSApple OSS Distributions<dd> 63*e3723e1fSApple OSS DistributionsThe number of times the <strong>vm_fault</strong> routine has been called. 64*e3723e1fSApple OSS Distributions<p> 65*e3723e1fSApple OSS Distributions<dt> <var>cow_faults</var> 66*e3723e1fSApple OSS Distributions<dd> 67*e3723e1fSApple OSS DistributionsThe number of copy-on-write faults. 68*e3723e1fSApple OSS Distributions<p> 69*e3723e1fSApple OSS Distributions<dt> <var>lookups</var> 70*e3723e1fSApple OSS Distributions<dd> 71*e3723e1fSApple OSS DistributionsThe number of object cache lookups. 72*e3723e1fSApple OSS Distributions<p> 73*e3723e1fSApple OSS Distributions<dt> <var>hits</var> 74*e3723e1fSApple OSS Distributions<dd> 75*e3723e1fSApple OSS DistributionsThe number of object cache hits. 76*e3723e1fSApple OSS Distributions</dl> 77*e3723e1fSApple OSS Distributions<h3>DESCRIPTION</h3> 78*e3723e1fSApple OSS Distributions<p> 79*e3723e1fSApple OSS DistributionsThe <strong>vm_statistics</strong> structure defines the statistics 80*e3723e1fSApple OSS Distributionsavailable on the kernel's use of 81*e3723e1fSApple OSS Distributionsvirtual memory. The statistics record virtual memory usage since 82*e3723e1fSApple OSS Distributionsthe kernel was booted. 83*e3723e1fSApple OSS Distributions<p> 84*e3723e1fSApple OSS DistributionsFor related information for a specific task, see the <strong>task_basic_info</strong> 85*e3723e1fSApple OSS Distributionsstructure. 86*e3723e1fSApple OSS Distributions<h3>NOTES</h3> 87*e3723e1fSApple OSS Distributions<p> 88*e3723e1fSApple OSS DistributionsThis structure is machine word length specific because of the memory sizes 89*e3723e1fSApple OSS Distributionsreturned. 90*e3723e1fSApple OSS Distributions<h3>RELATED INFORMATION</h3> 91*e3723e1fSApple OSS Distributions<p> 92*e3723e1fSApple OSS DistributionsFunctions: 93*e3723e1fSApple OSS Distributions<a href="task_info.html"><strong>task_info</strong></a>, 94*e3723e1fSApple OSS Distributions<a href="host_page_size.html"><strong>host_page_size</strong></a>. 95*e3723e1fSApple OSS Distributions<p> 96*e3723e1fSApple OSS DistributionsData Structures: 97*e3723e1fSApple OSS Distributions<a href="task_basic_info.html"><strong>task_basic_info</strong></a>. 98*e3723e1fSApple OSS Distributions 99