org.bootchart.parser.linux
Class ProcDiskStatParser
java.lang.Object
org.bootchart.parser.linux.ProcDiskStatParser
public class ProcDiskStatParser
- extends Object
ProcDiskStatParser parses log files produced by logging the output of
/proc/diskstats
. The samples contain information about disk
IO activity.
Method Summary |
static double |
getMaxDiskTPut(List ioSampleList)
Returns the maximum throughput seen in the iostat sample list. |
static Stats |
parseLog(InputStream is,
int numCpu)
Parses the proc_diskstats.log file. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ProcDiskStatParser
public ProcDiskStatParser()
parseLog
public static Stats parseLog(InputStream is,
int numCpu)
throws IOException
- Parses the
proc_diskstats.log
file. The output from
/proc/diskstat
is used to collect the disk statistics.
- Parameters:
is
- the input stream to read fromnumCpu
- number of processors
- Returns:
- disk statistics (
DiskUtilSample
and
DiskTPutSample
samples)
- Throws:
IOException
- if an I/O error occurs
getMaxDiskTPut
public static double getMaxDiskTPut(List ioSampleList)
- Returns the maximum throughput seen in the iostat sample list.
- Parameters:
ioSampleList
- iostat sample list
- Returns:
- maximum throughput