HFYBK Back to Index page
 
Prolog 
Control Block Contents 
   HFYBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  HFYBK Prolog Top of page
 
 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)
 RELOCATION CONSIDERATIONS : None
 COMPATIBILITY AND MIGRATION CONCERNS : none.
 
 
  HFYBK Control Block Content Top of page
 

 HFYBK DSECT Top of page
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 Top of page
 
          
*** 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 Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
HFY$END        0404 000004D0
HFYCACTV       0004
HFYCHSIM       0404
HFYCOUNT       0000
HFYSIZE        0404 0000009A
 
This information is based on z/VM 7.1.0 Last updated on 22 Jun 2018 at 11:49:57 EDT.
Copyright IBM Corporation, 1990, 2018