com.bigdata.counters.osx

Class VMStatCollector.VMStatReader

java.lang.Object

com.bigdata.counters.AbstractProcessReader

com.bigdata.counters.ProcessReaderHelper

com.bigdata.counters.osx.VMStatCollector.VMStatReader

All Implemented Interfaces:

Runnable

Enclosing class:

VMStatCollector

protected class VMStatCollector.VMStatReader
extends ProcessReaderHelper

Sample output for vm_stat 60, where 60 is the interval. Unlike the linux vmstat, there is no option to suppress the periodic repeat of the header. The header repeats in its entirety every "page" full.

 Mach Virtual Memory Statistics: (page size of 4096 bytes, cache hits 0%)
   free active   spec inactive   wire   faults     copy    0fill reactive  pageins  pageout
 346061  1246K  51002   196922 190727 1004215K 19835511  525442K  7555575  2897558  2092534 
 346423  1247K  50754   196922 189767     2707        0     1263        0        0        0 
 343123  1247K  52180   198906 189767     3885        0     1754        0        0        0 
 342474  1247K  52101   198978 190116    21739     2013     4651        0        0        0 
 342542  1247K  52016   199319 189799     5792       17     2561        0        0        0
 

For more recent OSX releases (e.g., Yosemite) there are now additional columns:

 Mach Virtual Memory Statistics: (page size of 4096 bytes)
     free   active   specul inactive throttle    wired  prgable   faults     copy    0fill reactive   purged file-backed anonymous cmprssed cmprssor  dcomprs   comprs  pageins  pageout  swapins swapouts
    17656  1502912   110218  1329298        0   783121    32302 1122834K 22138464  897721K  4538117  2220029      382716   2559712  1093181   449012  1856773  4298532 67248050   263644   779970   886296
    41993  1479331   110174  1329290        0   782241    33940     2115        1     1316        0        0      382671   2536124  1093181   449012        0        0       24        0        0        0
 

Author:

Bryan Thompson

Field Summary

Fields inherited from class com.bigdata.counters.ProcessReaderHelper

r

Fields inherited from class com.bigdata.counters.AbstractProcessReader

is, log

Constructor Summary

Constructors

Constructor and Description
VMStatCollector.VMStatReader()

Method Summary

Methods

Modifier and Type	Method and Description
protected ActiveProcess	getActiveProcess() Override to return the ActiveProcess.
protected void	readProcess() Responsible for reading the data.

Methods inherited from class com.bigdata.counters.ProcessReaderHelper

readLine, run, start

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VMStatCollector.VMStatReader

public VMStatCollector.VMStatReader()

Method Detail

getActiveProcess

protected ActiveProcess getActiveProcess()

Description copied from class: ProcessReaderHelper

Override to return the ActiveProcess.

Specified by:

getActiveProcess in class ProcessReaderHelper

readProcess

protected void readProcess()
                    throws Exception

Description copied from class: ProcessReaderHelper

Responsible for reading the data.

Specified by:

readProcess in class ProcessReaderHelper

Throws:

Exception

See Also:

TestParse_vm_stat.test_vmstat_header_and_data_parse()