Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

HFYBK

Prolog  

Control Block Contents  
   HFYBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


HFYBK Prolog

 NAME       : HCPHFYBK
 DESCRIPTION: Monitor System Domain Hi-Frequency Sample Data
 DSECT      : HFYBK
 FUNCTION   : Control block for system-domain high-frequency
              sample data. Data collected here are later
              transferred to the system-domain monitor record, MRSYTCPC.
 LOCATED BY : MNDHF_SYS_DATA
 CREATED BY : HCPMOYIN
 DELETED BY : HCPMOYTM
 REFERENCES : none
 SERIALIZED : MNDHFYLK lockword of HCPMND (Monitor data area)
 NOTES      : none.

 

HFYBK Control Block Content


HFYBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      HFYBK          Monitor System Domain
                                        Hi-Frequency Sample Data
0000    0 Signed       4 HFYCOUNT       Number of samples taken
0004    4 Signed       4 HFYCACTV (256) The Number of times each channel
                                        path was active. Each index
                                        number of this array corresponds
                                        to its channel path number, 0 to
                                        255.
0404 1028 Signed       4 HFYCHSIM (51)  The number of times a total
                                        number of channel paths were
                                        simultaneously active. For index
                                        numbers, 0 to 49, each index
                                        number corresponds to the total
                                        number of channel paths that were
                                        active. For index number 50, this
                                        is the number of times that 50 or
                                        more channel paths were
                                        simultaneously active.
          000004D0       HFY$END        *
          0000009A       HFYSIZE        (HFY$END-HFYBK+7)/8 HFYBK size in
                                        doublewords

 

HFYBK Storage Layout

          
*** HFYBK - Monitor System Domain Hi-Frequency Sample Data
*
*     +---------------------------+---------------------------+
*   0 |         HFYCOUNT          |                           |
*     +---------------------------+                           |
*   8 |                                                       |
*     =                       HFYCACTV                        =
*     |                           +---------------------------+
*     |                           |                           |
*     +---------------------------+                           |
* 408 |                                                       |
*     =                       HFYCHSIM                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 4D0
*
*** HFYBK - Monitor System Domain Hi-Frequency Sample Data

 

HFYBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
HFY$END        0404 000004D0
HFYCACTV       0004
HFYCHSIM       0404
HFYCOUNT       0000
HFYSIZE        0404 0000009A

This information is based on z/VM V4R2.0. Last updated on 17 Oct 2001 at 15:25:19 EDT.
Copyright IBM Corporation, 1990, 2001