The Historical Summarized Performance Daily workspace shows the average
performance of system resources, summarized by day. This workspace consists
of the following five graphical views:
-
Network Interface Performance (daily),
which shows the following information for each network interface, summarized
by day:
- 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 (daily),
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 day
Processor Performance
(daily), which shows the following information, summarized by day:
- 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
Memory Performance
(daily), which shows the average rate of page in and page out for the
system, summarized by day
-
Disk Performance (daily), which shows
the following information, summarized by day:
- 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