The Talon Manual

Versions Compared

Old Version 18

changes.mady.by.user Unknown User (colin)

Saved on

compared with

New Version 19

changes.mady.by.user Unknown User (niranjan)

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

StatDescription

PUT

The overall number of times items were put (returned) to a pool.

DPUT

The number of times items were put (returned) to a pool since the last time the pool was reported in a heartbeat (the delta).

GET

The overall number of times an item was taken from a pool.

(lightbulb) If pool items are not being leaked, GET - PUT indicates the number of items that have been taken from the pool and not returned ... e.g. items that are being held by messages in the transaction processing pipeline or application state.

DGETThe number of times an item was taken from a pool since the last time the pool was reported in a heartbeat (the delta).
HITThe overall number of times that an item taken from a pool was satisfied by there being an available item in the pool.
DHITThe number of times that an item taken from a pool was satisfied by there being an available item in the pool since the last time the pool was reported in a heartbeat(the delta).
MISSThe overall number of times that an item taken from a pool was not satisfied by there being an available item in the pool resulting in an allocation.
DMISSThe number of times that an item taken from a pool was not satisfied by there being an available item in the pool resulting in an allocation since the last time the pool was reported in a heartbeat.
GROWThe overall number of times the capacity of a pool had to be increased to accomodate returned items.
DGROWThe number of times the capacity of a pool had to be increased to accomodate returned items since the last time the pool was reported in a heartbeat.

EVIC

The overall number of items that were evicted from the pool because the pool did not have an adequate capactiy to store them.
DEVICThe overall number of items that were evicted from the pool because the pool did not have an adequate capactiy to store them since the last time the pool was reported in a heartbeat.
DWSHThe overall number of times that an item return to the pool was washed (e.g. fields reset) in the detached pool washer thread.
DDWSHThe number of times that an item return to the pool was washed (e.g. fields reset) in the detached pool washer thread since the last time the pool was reported in a heartbeat
SIZE

The number of items that are currently in the pool available for pool gets. This number will be 0 if all objects that have been allocated by the pool have been taken.

(lightbulb) Note that because pool stats are generally printed when there are pool misses, this value will often be 0 reflecting that there are no items available in the pool

PREThe number of items initially preallocated for the pool.
CAP

The capacity of the backing array that is allocated to hold available pool items that have been preallocated or returned to the pool.

(lightbulb) The capacity of a pool will grow automatically as items are returned to the pool without being taken out. A large capacity generally indicates that at some point in the past a larger number of items was needed, but are not currently being used.

NAMEThe unique identifier for the pool.

...

User Defined App Stats

Stats that you defined in your application are emitted, they can be included in trace with the following configuration:

...