net.thisptr.java.procfs.mbeans.agent.mbeans.self

Class ProcessIo

java.lang.Object

net.thisptr.java.procfs.mbeans.agent.mbeans.self.ProcessIo

All Implemented Interfaces:

ProcessIoMXBean

public class ProcessIo
extends Object
implements ProcessIoMXBean

Available when the kernel has CONFIG_TASK_IO_ACCOUNTING.

See Also:

https://github.com/torvalds/linux/blob/v4.13/fs/proc/base.c#L2727, https://github.com/torvalds/linux/blob/v4.13/fs/proc/base.c#L2675, https://github.com/torvalds/linux/blob/v4.13/include/linux/task_io_accounting.h

Constructor Summary

Constructors

Constructor and Description
ProcessIo()

Method Summary

Modifier and Type	Method and Description
long	getcancelled_write_bytes()
long	getrchar()
long	getread_bytes()
long	getsyscr()
long	getsyscw()
long	getwchar()
long	getwrite_bytes()

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessIo

public ProcessIo()

Method Detail

getrchar

public long getrchar()

Specified by:

getrchar in interface ProcessIoMXBean

Returns:

bytes read

getwchar

public long getwchar()

Specified by:

getwchar in interface ProcessIoMXBean

Returns:

bytes written

getsyscr

public long getsyscr()

Specified by:

getsyscr in interface ProcessIoMXBean

Returns:

# of read syscalls

getsyscw

public long getsyscw()

Specified by:

getsyscw in interface ProcessIoMXBean

Returns:

# of write syscalls

getread_bytes

public long getread_bytes()

Specified by:

getread_bytes in interface ProcessIoMXBean

Returns:

the number of bytes which this task has caused to be read from storage

getwrite_bytes

public long getwrite_bytes()

Specified by:

getwrite_bytes in interface ProcessIoMXBean

Returns:

the number of bytes which this task has caused, or shall cause to be written to disk

getcancelled_write_bytes

public long getcancelled_write_bytes()

Specified by:

getcancelled_write_bytes in interface ProcessIoMXBean

Returns:

the number of bytes which this task has cancelled by truncating some dirty page caches