Data Records
Class Zero -Codes for Tape Header, Trailer, and Data Suspension Records
Number CP DSECT
Monitor Data of Variable Variable
Code Item Bytes Name Name
97 Tape header record CPU serial/model number 8 CPUID MN097CPU Software version number
1
8 DMKCPEID MN097LEV Date of data collection session 1 8 TOD clock MN097DAT
Time of data collection session 1 8 TOD clock MN097TIM
Userid of monitor controller 1 8 VMUSER MN097UID CR8 mask of enabled classes 4 DMKPRGC8 MN097CR8
Size of CP nucleus 4 Derived by CP MN097NUC Size of Free/Fret pools 4 Derived by CP MN097FSS
Size of dynamic paging area 4 Derived by CP MN097DPA
Size of trace table 4 Derived by CP MN097TTS
Size of V =R area (if any) 4 Derived by CP MN097VR CPU logical address 2 LPUADDR MN097CPL APU logical address 2 LPAUDDRX MN097APL
Generated system mode 2 DMKSYSAP MN097MOD Unused 2
PPmap 8 DMKCPEPP MN097CPP
98 Tape trailer record
Userid of user shutting down monitor
1
8 VMUSER MN098UID 99 Tape write suspension record TOD at suspension
2
5 MN099TOD Count of write suspensions 4 MN099CNT
Appendix B. VM/SP Monitor Tape Format and Content 543

Class Zero - PERFORM Number CP DSECT
Monitor Data of Variable Variable
Code item Bytes Name Name 00 Interval statistics
Total main processor idle time
3
8 IDLEWAIT MNOOOWID Total main processor page waiP 8 PAGEWAIT MNOOOWPG Total main processor time I/O waiP 8 10NTWAIT MNOOOWIO Total main processor problem time
3
8 PROBTIME MNOOOPRB Total paging start I/Os 4 DMKPAGPS MNOOOPSI Total page I/O requests 4 DMKPAGCC MNOOOCPA Current page frames on free list 4 DMKPTRFN MNOOONFL Pages being written, due for free list 4 DMKPTRSW MNOOOPSN Total pages flushed, but reclaimed 4 DMKPTRPR MNOOOPRC Number of reserved pages 4 DMKPTRRC MNOOORPC Number of shared system pages 4 DMKPTRSC MNOOOSPC Total number of times free list empty 4 DMKPTRFO MNOOOFLF Total number of calls to DMKPTRFR 4 DMKPTRFC MNOOOCPT Total pages stolen from in-queue users 4 DMKPTRSS MNOOOSS Number of pages swapped from the flush
list 4 DMKPTRFF MNOOOPFF Number of pages examined in stealing pages 4 DMKPTRRF MNOOOPRF Number of full scans done in stealing
pages 4 DMKPTRCS MNOOOPCS Total real external interrupts to main
processor 4 DMKPSANX MNOOONXR Total calls to DMKPR VLG 4 DMKPRVNC MNOOOCPR Total calls to DMKVIOEX 4 DMKVSICT MNOOOCVI Total calls to CCWTRANS from DMKVIO 4 DMKVSICW MNOOOCCW Total virtual interval timer interrupts
reflected 4 DMKDSPIT MNOOOITI Total virtual CPU timer interrupts
reflected 4 DMKDSPPT MNOOOPTI 544 VM/SP System Programmer's Guide