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z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

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Table 14. Explanation of the ipcs <strong>Command</strong> Listing (continued)<br />

Column Heading Meaning of the Column<br />

DTIME (a,t) The time the last detach was completed on the associated<br />

shared memory segment.<br />

NSEMS (a,b) The number of semaphores in the set associated with the<br />

semaphore entry.<br />

OTIME (a,t) The time the last semaphore operation was completed on<br />

the set associated with the semaphore entry.<br />

RCVWAIT (x) A count of msgrcv() waiters.<br />

SNDWAIT (x) A count of msgsnd() waiters.<br />

MSGQPID (w) For the message Q report, up to 10 lines of data will be<br />

shown under this heading.<br />

MSGQTYPE (w) For the message Q report, up to 10 lines of data will be<br />

shown under this heading.<br />

RCVPID (w) The process ID of a msgrcv() waiter. A maximum of 10<br />

process IDs can be written.<br />

RCVTYP (w) The message type of a msgrcv() waiter associated with<br />

RCVPID. A maximum of 10 message type will be written. If<br />

the caller does not have read access, this field is not<br />

displayed.<br />

SNDPID (w) The process ID of a msgsnd() waiter. A maximum of 10<br />

process IDs can be written<br />

SNDLEN (w) The message send length of a msgsnd() waiter associated<br />

with SNDPID. A maximum of 10 message send lengths can<br />

be written.<br />

TERMA (x) The number of times sem_val was changed during<br />

termination for semaphore adjustments.<br />

CNADJ (x) The current number of processes with semaphore<br />

adjustments.<br />

SNCNT (x) The number of waiters waiting for a sem_val greater than<br />

zero.<br />

SZCNT (x) The number of waiters waiting for a sem_val equal to zero.<br />

WTRPID (w) The process IDs of a semop waiter. A maximum of 10<br />

semop waiters are written.<br />

WTRNM (w) The semaphore number associated with WTRPID. A<br />

maximum of 10 semaphore numbers are written.<br />

WTROP (w) The semaphore operation value associated with WTRNM<br />

and WTRPID. A maximum of 10 semaphore operation<br />

values are written.<br />

AJPID (w) The process ID of a process with semaphore adjustments. A<br />

maximum of 10 process IDs are written.<br />

AJNUM (w) The semaphore number of the semaphore adjustment<br />

associated with AJPID. A maximum of 10 semaphore<br />

numbers are written.<br />

AJPID (w) The process ID of a process with semaphore adjustments. A<br />

maximum of 10 process IDs are written.<br />

AJNUM (w) The semaphore number of the semaphore adjustments<br />

associated with AJPID. A maximum of 10 semaphore<br />

numbers are written.<br />

ipcs<br />

Chapter 2. Shell command descriptions 323

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