Patton electronics 6511RC, Administrator'S Reference Manual

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System Message Block Statistics window 103
Model 6511RC Matrix Switch Administrators’ Reference Guide 12 • System
Figure 52. System Message Block Statistics window
System Message Block Statistics window
The 6511RC Matrix Switch system manages the i960 processor utilization by allocating message blocks for
packet management. The System Message Block Statistics window (see
figure 52 ) displays statistics about the
Matrix Switch’s buffer usage for messages according to the size of the message block size required. To display
the System Message Block Statistics window, at the System Status Details window, click the Detailed Message Block
Statistics... hyperlink
The following sections describe the statistical counters displayed on the System (Message Blocks) window.
Buffer Size (boxBufferSize)
The size in bytes of the buffer.
No. of Buffers (boxBufferCount)
The total number of buffers this size.
No. Free (boxBuffersFree)
The number of buffers this size which are currently free for use.
No. of Tasks Waited (boxCountBufferTaskWait)
The total number of times that the proper size message block was not available to hold a packet, and the CPU
task went to sleep while waiting for it.
No. of Times Unavailable(boxCountBufferUnavailable)
The total number of times that the proper size message block was not available to hold a packet, and the CPU
task dumped the packet. The difference between Total Time Waited and Total Times Unavailable is whether
the CPU task goes to sleep or simply dumps the packet to continue on.