TACL Reference Manual

UTILS:TACL Commands and Functions

HP NonStop TACL Reference Manual—429513-018

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SEMSTAT Program

Examples

The SEMSTAT program prints BINSEM statistics for each BINSEM used by the

specified process. The statistics are printed in a tabular format and are categorized as

the following heading rows:

Samples

1.Brief Format:

semstat /cpu 1/ -pin 843

SEMSTAT utility -- T9050J01 - (01AUG12) - (18JUN12) - (AWT)

--- Binary Semaphore Statistics for Process 1,843 ---

Sem ID Acquisitions Tot. Cont. Mult. Cont. Cur. Cont. Max. Cont

---------------------------------------------------------------------------

0 8225 3 0 0 1

1 8225 0 0 0 0

2 8225 7851 7833 0 30

3 8225 0 0 0 0

4 8225 0 0 0 0

Sem ID The BINSEM ID in this process.

Acquisitions The number of times the BINSEM is acquired.

Tot. Cont. The number of times the BINSEM is found locked.

Mult.Cont. The number of times the BINSEM is found locked and

contended.

Cur. Cont. The number of processes waiting for the BINSEM.

Max. Cont. The maximum number of contenders for a BINSEM.

Create Date The date when the BINSEM is created.

Create Time The time when the BINSEM is created.

Serial Number The serial number of creation (since CPU load) which uniquely

identifies the same semaphore shared by multiple processes.

Timeouts The number of times a timeout occurrs when a process tries to

acquire a BINSEM.

Forced The number of times a process stole the BINSEM from an

unresponsive process.

Forsaken The number of times a process abandoned ownership of a

BINSEM.