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Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRSTOSXP
PrologControl Block Contents
Cross Reference
MRSTOSXP Prolog
DSECT NAME - STOSXP
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRSTOSXP
DESCRIPTIVE NAME - Monitor Sample Record
Domain 3 - Storage Domain
Record 20 - System Execution Space
(Per Processor)
DESCRIPTION - Utilization of System Execution Space storage on a
per processor basis.
This record is needed because System Execution Space
usage is not expected to be evenly distributed across
all processors in a complex. A separate record is
generated for each online processor.
MRSTOSXP Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 128 STOSXP Start of monitor record
0 0 Character 0 STOSXP_MRHDR Record header. See MRRECHDR
for details.
0 0 Character 20 MRHDR
0 0 Unsigned 2 MRHDRLEN record length in bytes
2 2 Unsigned 2 MRHDRZER field of zeros
4 4 Unsigned 1 MRHDRDM domain identifier
5 5 Unsigned 1 *
6 6 Unsigned 2 MRHDRRC record identifier
8 8 Character 8 MRHDRTOD Time at which this record was
built. In time-of-day (TOD)
clock format. See IBM System
370 XA Principle of Operation
for explanation of format.
16 10 Character 4 *
20 14 Character 0 MRHDR_END End of header
20 14 Unsigned 2 STOSXP_PFXCPUAD Processor address.
22 16 Unsigned 2 * Reserved for IBM use.
24 18 Unsigned 4 STOSXP_PLSSUTKC Number of pages taken from
the unbacked available queue.
28 1C Unsigned 4 STOSXP_PLSSURTC Number of pages returned to
the unbacked available queue.
32 20 Unsigned 4 STOSXP_PLSSUPUC Number of times the available
unbacked queue was the
preferred queue for request
type and was used to satisfy a
request.
36 24 Unsigned 4 STOSXP_PLSSUQMT Number of times the available
unbacked queue was empty but
was the preferred queue for the
request type.
40 28 Unsigned 4 STOSXP_PLSSATKC Number of pages taken from
the backed-above-2G available
queue.
44 2C Unsigned 4 STOSXP_PLSSARTC Number of pages returned to
the backed-above-2G available
queue.
48 30 Unsigned 4 STOSXP_PLSSAPUC Number of times the available
backed-above-2G queue was the
preferred queue for the request
type and was used to satisfy
the request.
52 34 Unsigned 4 STOSXP_PLSSAQMT Number of times the available
backed-above-2G queue was empty
but was the preferred queue for
the request type.
56 38 Unsigned 4 STOSXP_PLSSBTKC Number of pages taken from
the backed-below-2G queue.
60 3C Unsigned 4 STOSXP_PLSSBRTC Number of pages returned to
the backed-below-2G available
queue.
64 40 Unsigned 4 STOSXP_PLSSBPUC Number of times the available
backed-below-2G queue was the
preferred queue for the request
type and was used to satisfy
the request.
68 44 Unsigned 4 STOSXP_PLSSBQMT Number of times the available
backed-below-2G queue was empty
but was the preferred queue for
the request type.
72 48 Unsigned 4 STOSXP_PLSSXALS Number of times an alias was
stolen from the potentially
stealable queue because the
available page queues were
empty.
76 4C Unsigned 4 STOSXP_PLSSXADC Count of locked aliases
dequeued while searching the
potentially stealable queue for
one to steal.
80 50 Unsigned 4 STOSXP_PLSSXASC Count of aliases stolen by
the System Execution Space page
manager.
84 54 Unsigned 4 STOSXP_PLSSPNDP Number of non-deferrable page
requests that failed due to the
lack of a page.
88 58 Unsigned 4 STOSXP_PLSSPNDF Number of non-deferrable page
requests that failed due to the
lack of a frame.
92 5C Unsigned 4 STOSXP_PLSSPGPD Number of times a page
request deferred on a page.
96 60 Unsigned 4 STOSXP_PLSSPGFD Number of times a page
request deferred on any frame.
100 64 Unsigned 4 STOSXP_PLSSPGBD Number of times a page
request deferred on a frame
below 2G.
104 68 Unsigned 4 STOSXP_PLSSPDQC Number of times HCPFRFDQ was
called to ask free storage to
release a page.
108 6C Unsigned 4 STOSXP_PLSSXIPC Number of IPTE instructions
executed to invalidate an SXS
PTE.
112 70 Unsigned 4 STOSXP_PLSSXNST Number of times the RSASXNST
flag was turned on, indicating
only free storage requests are
allowed to steal from the
potentially-stealable queue.
116 74 Unsigned 4 STOSXP_PLSSXAFC Number of times a
non-deferrable System Execution
Space alias request could not
be fulfilled.
120 78 Unsigned 4 STOSXP_PLSSXCSP Number of CSP instructions
used instead of IPTE when
invalidating multiple PTEs.
124 7C Unsigned 4 STOSXP_PLSSXALD Number of create alias
requests that were deferred.
128 80 Character 0 STOSXP_END
MRSTOSXP Cross Reference
Hex Hex
Name Offset Length Value
MRHDR 0 20
MRHDR_END 14 0
MRHDRDM 4 1
MRHDRLEN 0 2
MRHDRRC 6 2
MRHDRTOD 8 8
MRHDRZER 2 2
STOSXP 0 128
STOSXP_END 80 0
STOSXP_MRHDR 0 0
STOSXP_PFXCPUAD 14 2
STOSXP_PLSSAPUC 30 4
STOSXP_PLSSAQMT 34 4
STOSXP_PLSSARTC 2C 4
STOSXP_PLSSATKC 28 4
STOSXP_PLSSBPUC 40 4
STOSXP_PLSSBQMT 44 4
STOSXP_PLSSBRTC 3C 4
STOSXP_PLSSBTKC 38 4
STOSXP_PLSSPDQC 68 4
STOSXP_PLSSPGBD 64 4
STOSXP_PLSSPGFD 60 4
STOSXP_PLSSPGPD 5C 4
STOSXP_PLSSPNDF 58 4
STOSXP_PLSSPNDP 54 4
STOSXP_PLSSUPUC 20 4
STOSXP_PLSSUQMT 24 4
STOSXP_PLSSURTC 1C 4
STOSXP_PLSSUTKC 18 4
STOSXP_PLSSXADC 4C 4
STOSXP_PLSSXAFC 74 4
STOSXP_PLSSXALD 7C 4
STOSXP_PLSSXALS 48 4
STOSXP_PLSSXASC 50 4
STOSXP_PLSSXCSP 78 4
STOSXP_PLSSXIPC 6C 4
STOSXP_PLSSXNST 70 4
This information is
based on z/VM V5R2.0.
Last updated on 11 Dec 2005 at 18:48:12.
Copyright IBM Corporation, 1990, 2005