Collection Services data files: QAPMJVM
This file contains data for Java™ Virtual Machines (JVM) that are active within a process at the time the data was sampled. There is one record per interval for each process that has a JVM active.
Note: The only supported JVM is IBM® Technology
for Java (J9).
| Field Name | Description | Attribute |
|---|---|---|
| INTNUM | Interval number: The nth sample database interval based on the start time specified in the Create Performance Data (CRTPFRDTA) command. | PD (5,0) |
| DTETIM | Interval date (yymmdd) and time (hhmmss): The date and time of the sample interval for a job interval entry or the job end date and time for a job completion entry, expressed in local system time. | C (12) |
| INTSEC | Elapsed interval seconds. The number of seconds since the last sample interval. | PD (7,0) |
| DTECEN | Century digit. | C (1) |
| JVNAME | Job name/workstation name. | C (10) |
| JVUSER | Job user. | C (10) |
| JVNBR | Job number. | C (6) |
| JVTDE | System task identifier. The system task identifier associated with the initial thread of a job. This field can be used to join records to QAPMJOBMI field JBTDE. | H (8) |
| JVTYPE | Job type.
|
C (1) |
| JVVRSN | JVM version (UTF-16 CCSID 1200). | G (10) |
| JVPID | Process identifier. | B (9,0) |
| JVPOLICY | Garbage collection policy (UTF-16 CCSID 1200). | G (15) |
| JVHEAPC | Current heap allocated. Current amount of heap storage allocated for this JVM in kilobytes. | B (18,0) |
| JVHEAPU | Heap in use. Amount of allocated heap actually being used in kilobytes. | B (18,0) |
| JVMLCMEM | Malloc memory size in kilobytes. | B (18,0) |
| JVINTMEM | Internal memory size in kilobytes. | B (18,0) |
| JVJITMEM | JIT memory size in kilobytes. | B (18,0) |
| JVSCLMEM | Shared class size in kilobytes. | B (18,0) |
| JVGCCNBR | Last garbage collection cycle number. | B (9,0) |
| JVGCCTME | Last garbage collection cycle time. Clock time spent performing garbage collection tasks during the last garbage collection cycle in milliseconds. | B (18,0) |
| JVGCITME | Interval garbage collection time. Clock time spent performing garbage collection tasks during this collection interval in milliseconds. | B (18,0) |
| JVGCTTME | Total garbage collection time. The total amount of clock time spent performing garbage collection by all tasks since the JVM started. | B (18,0) |
| DATETIME | Interval date and time: The date and time of the sample interval for a job interval entry or the job end date and time for a job completion entry, expressed in local system time. | Timestamp |
| UTCTIME | UTC interval date and time: The date and time of the sample interval for a job interval entry or the job end date and time for a job completion entry, expressed in Coordinated Universal Time (UTC). | Timestamp |