1.1.1

Table Of Contents
currentUsedMemory
Statistic
Estimated used memory, in bytes, for each heap memory pool.Description
VMGCStats
Type
ParNew, ConcurrentMarkSweep
Name
collectionTime
Statistic
Approximate elapsed time that this garbage collector spent doing
collections.
Description
LinuxSystemStats
Type
<hostname>
Name
pagesSwappedIn, pagesSwappedOut
Statistic
Number of pages that have been brought into memory from disk or
ushed out of memory to disk by the operating system. These paging
operations seriously degrade performance.
Description
Example: Heap Usage
This VSD chart shows the heap usage in a fabric server plotted against the entry counts in each of the replicated
and partitioned tables used in an application. This suggests that heap is growing over time due to an increase in
the number of rows in the ORDER_LINE table. Several associated tables are growing in size as well.
This growth can be veried by looking at the bytes used by each of the partitioned tables. The ORDER_LINE
table is responsible for most of the heap growth.
291
Evaluating System and Application Performance