The Historical Summarized Performance Hourly workspace shows the average
performance of system resources, summarized by hour. This workspace consists
of the following five graphical views:
-
Network Interface Performance (hourly),
which shows the following information for each network interface, summarized
by hour:
- Total number of frames received
- Total number of frames transmitted
- Total input errors
- Total output errors
- Total number of times during the sampling period
that a frame transmitted by the network interface collided with another
frame
Load Average (hourly),
which shows the average of the average number of processes in the UNIX
kernel run queue during a fifteen-minute interval and the average percentage
of time that the CPU was not processing instructions, summarized by hour
Processor Performance
(hourly), which shows the following information for each processor, summarized
by hour:
- Average percentage of idle CPU time during the
sampling period
- Average percentage of processors' CPU time devoted
to running UNIX system kernel code
- Average percentage of processors' CPU time devoted
to user processes, including time spent executing user program and library
functions but not executing system calls
- Average wait I/O CPU time during the sampling
period, which indicates how effectively the system or a processor is using
disks
- Average numbers of processes that were waiting
to be run or were running on a processor
- Average numbers of processes that were idle,
or in sleep state, or in a stopped state
- Average number of zombie processes
Memory Performance
(hourly), which shows the average rate of page in and page out rates for
the system, summarized by hour
-
Disk Performance (hourly), which shows
the following information, summarized by hour:
- Name of the disk
- Maximum percentage of time a disk was busy transferring
data, which can indicate whether a process is I/O bound
- Average number of disk requests outstanding during
the sampling period
- Average amount of disk time used in milliseconds
over the sampling period
- Average time waiting for disk access, expressed
in milliseconds
- Maximum number of total kilobytes per second
written to and read from all local disks during a specified sampling period