SAP ABAP Data Element IPEFIFOSIZ (Size of a trace buffer for semaphore trace)

Hierarchy

☛ SAP_BASIS (Software Component) SAP Basis Component
   ⤷ BC-CST-LL (Application Component) Low Level Layer
     ⤷ SIPC (Package) Inter Process Communication (IPC) Interface

Basic Data

Data Element	IPEFIFOSIZ
Short Description	Size of a trace buffer for semaphore trace

Data Type

Category of Dictionary Type	D	Domain
Type of Object Referenced		No Information
Domain / Name of Reference Type	NUM03
Data Type	NUMC	Character string with only digits
Length	3
Decimal Places	0
Output Length	3
Value Table

Further Characteristics

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Parameter ID
Default Component name
Change document	☐
No Input History	☐
Basic direction is set to LTR	☐
No BIDI Filtering	☐

Field Label

	Length	Field Label
Short	10	Trace FIFO
Medium	15	Trace FIFO
Long	20	Value trace FIFO
Heading	55	Value trace FIFO

Documentation

Definition

Procedure

Enter the number of record slots in the semaphore trace buffer that are to be reserved for tracing this semaphore. Trace records are written in the slots in circular fashion.

If the buffer is big enough, you can reserve groups of record slots for tracing more than one semaphore at a time.

Examples

If you enter 30, the semaphore trace will record the last 30 events that involved the semaphore.

Dependencies

The number of trace record slots is determined by the SAP System profile parameter ipc/sem_mon_rec. If the parameter is set to 0, then tracing is not possible at all.

Trace records are not written unless you set the statistics level in the popup to one of the appropriate values.

History

Last changed by/on	SAP	20040312
SAP Release Created in	630