Events that trigger the log output are output in [cause:<CAUSE>] format. You can confirm the event triggered by confirming the item.

The following table describes the meaning of character string output to <CAUSE>.

Table 5-31 Meaning of character string output to <CAUSE>

<CAUSE>	Meaning
GC	Copy garbage collection occurrence
Full GC	Full garbage collection occurrence
Reclaim	Explicit memory block explicit release process
Reclaiming	Java heap overflow in Explicit memory block explicit release process
New	Object generation in Explicit memory block
Migrate	Automatic release processing for the explicit memory block
Migrating	Java heap overflow in the automatic release processing for the explicit memory block

However, <CAUSE> is not output in a part of the log.

You can use log prefixes such as ENS, EVO to perform checking by filtering the log.

The meaning of prefixes of the Explicit Heap Memory Management functionality is as follows:

• "E" of first character indicates that a prefix is for the log of Explicit Heap Memory Management functionality.
• Second character indicates log output level. N is output for normal level, V is output for verbose level and D is output for debug level.
• The third character indicates whether the memory size of Explicit heap or Java heap will change. The memory size changes if the third character is S. The memory size does not change when third character is O. When O, the names of events occurred are output to log. Also, A indicates the log of the automatic allocation configuration file for the explicit memory management.

For example, when you want to check changes of each heap size, perform filtering by S and when you want to check the occurred event, perform filtering by O.

The following table describes the signs used in the description of output format.

Table 5-32 Signs used in description of output format

Signs	Usage examples	Meaning
*	X*	Repeat the left side items for minimum zero times. Usage example indicates that X is repeated for minimum zero times.
?	X?	Repeat the left side items for minimum one time. Usage example indicates that X is repeated for minimum once.
{n,m}	X{1,5}	Repeat the left side items for minimum n times and maximum m times. Usage example indicates that X is repeated minimum once and maximum five times.
{	{ABC}*	The range included in "{" and "}" is reference unit at left side of "*", "?", "{n,m}". Usage example indicates that "ABC" is repeated for minimum zero times.
}
\	None	This sign indicates the places with linefeed for visibility in the manual. There is no linefeed in the actual output contents.
|	X|Y	This sign indicates either the left side or the right side. Usage example indicates either X or Y.
.	None	Indicates any character.
...	X|Y...	Repeat minimum once from the line that has same indent as this line and that is nearest to forward match of this line, to the line previous to this line. Usage example indicates that either of X or Y is repeated minimum once.

In the description of output format, numeric values are expressed by combining signs as in Table 5-32 and signs in Table 5-33.

The following table describes the signs used to indicate numeric values.

Table 5-33 Signs used to indicate numeric values

Sign	Definition	Meaning
<digit>	0|1|2|3|4|5|6|7|8|9	Indicates 0 to 9.
<hex>	<digit>|a|b|c|d|e|f	Indicates hexadecimals.
<const>	<const><digit>|<digit>	Indicates positive whole number.
<decimal>	<const>.<digit>	Indicates positive integer (Up to 1st Decimal position).
<ptr64>	0x<hex><hex><hex><hex><hex><hex><hex><hex><hex><hex><hex><hex><hex><hex><hex><hex>	Indicates 64 bit pointer value.
<ptr32>	0x<hex><hex><hex><hex><hex><hex><hex><hex>	Indicates 32 bit pointer value.
<ptr>	<ptr64>|<ptr32>	Indicates pointer value.
<letters>	.?	Indicates any character or character string.

Note The signs indicated in Table 5-32 would be the reference unit at left side or right side of "*", "?" or "|". For example, when <digit>|<hex> is mentioned, indicates numeric value from zero to nine or hexadecimal.