SMF Type 23 Record

Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See “Standard and Extended SMF record headers” on page 160 for a detailed description.

Segment descriptor (see record length field).

System indicator:
Bit - Meaning when set
0-2 - Reserved
3-6 - Version indicators (See “Standard and Extended SMF record headers” on page 160 for details.)
7 - Reserved.

Record type 23 (X'17').

Time since midnight, in hundredths of a second, when the record was moved to the SMF buffer.

Date when the record was moved into the SMF buffer, in the form 0cyydddF. See “Standard and Extended SMF record headers” on page 160 for a detailed description.

System identification (from the SID parameter).

Reserved.

Offset to product section from start of record, including the record descriptor word (RDW).

Length of product section.

Number of product sections.

Offset to system section from start of record, including the record descriptor word (RDW).

Length of system section.

Number of system sections.

Offset to SMF statistics section from start of record, including the record descriptor word (RDW).

Length of SMF statistics section.

Number of SMF statistics sections.

Offset to SMF logstream statistics section.

Length of SMF logstream statistics section.

Number of SMF logstream statistics sections.

Offset to spin lock instrumentation data section from start of record, including the record descriptor word (RDW).

Length of spin lock instrumentation data section.

Number of spin lock instrumentation data sections.

Offset to bind break instrumentation data section from start of record, including the record descriptor word (RDW).

Length of bind break instrumentation data section.

Number of bind break instrumentation data sections.

Subtype identification — ‘0’.

Record version number — ‘02’.

Product name — ‘SMF’.

Length of measurement interval.

Operating system release level.

MVS product name (taken from CVTPRODN).

Time and date that the interval ended for the STATUS function, in time-of-day (TOD) format, an unsigned 64-bit fixed-point number where bit 51 is equivalent to 1 microsecond. If you requested synchronized interval recording for SMF statistics, a field in other records, similar to this field, contains the same time so you can compare this record with other records generated at the end of the same interval.

System name (from the SYSNAME parameter in the IEASYSxx parmlib member).

Sysplex name (from the SYSPLEX parameter in the COUPLExx parmlib member).

Number of buffers written.

Maximum number of buffers used at one time.

Reserved.

Number of records written.

Amount of each buffer allocation request.

Total amount of buffer storage currently allocated (and recently used).

‘High water mark’ of buffer storage allocation.

Buffer storage maximum in effect (BUFSIZMAX binary value).

Buffer storage usage warning level in effect (BUFUSEWARN binary value).

Statistics section flags.

• 0 - When bit 0 is on, it indicates that a 4-byte field, FIXED(32), is used for the accumulator for SMF23NGR. For example, field wraps at four gigabytes. When bit 0 is off, it indicates that an 8-byte field, FIXED(64), is used for the accumulator for SMF23NGR.
• 1 - When bit 1 is on, it indicates that a 4-byte field, FIXED(32), is used for the accumulator for SMF23PBG. For example, field wraps at four gigabytes. When bit 1 is off, it indicates that an 8-byte field, FIXED(64), is used for the accumulator for SMF23PBG.
• 2 - When bit 2 is on, it indicates that a 4-byte field, FIXED(32), is used for the accumulator for SMF23NFR. For example, field wraps at four gigabytes. When bit 2 is off, it indicates that an 8-byte field, FIXED(64), is used for the accumulator for SMF23NFR.
• 3 - When bit 3 is on, it indicates that a 4-byte field, FIXED(32), is used for the accumulator for SMF23PFX. For example, field wraps at four gigabytes. When bit 3 is off, it indicates that an 8-byte field, FIXED(64), is used for the accumulator for SMF23PFX.
• 4 - When bit 4 is on, it indicates that a 4-byte field, FIXED(32), is used for the accumulator for SMF231RF. For example, field wraps at four gigabytes. When bit 4 is off, it indicates that an 8-byte field, FIXED(64), is used for the accumulator for SMF231RF
• 5 - When bit 5 is on, it indicates that a 4-byte field, FIXED(32), is used for the accumulator for SMF23NRF. For example, field wraps at four gigabytes. When bit 5 is off, it indicates that an 8-byte field, FIXED(64), is used for the accumulator for SMF23NRF.
• 6 - When bit 6 is on, it indicates that 4-byte fields, FIXED(32), are used for the accumulators (one accumulator for each CPU) for SMF23NIO . For example, value decreases from the last interval value, if one of the accumulators wrap at four gigabytes. When bit 6 is off, it indicates that 8-byte fields, FIXED(64), are used for the accumulators (one accumulator for each CPU) for SMF23NIO.
• 7 - When bit 7 is on, it indicates that 4-byte fields, FIXED(32), are used for the accumulators (one accumulator for each CPU) for SMF23TCB. For example, value decreases from the last interval value, if one of the accumulators wrap at four gigabytes. When bit 7 is off, it indicates that 8-byte fields, FIXED(64), are used for the accumulators (one accumulator for each CPU) for SMF23TCB.
• 8 - When bit 8 is on, it indicates that 4-byte fields, FIXED(32), are used for the accumulators (one accumulator for each CPU) for SMF23SRB. For example, value decreases from the last interval value, if one of the accumulators wrap at four gigabytes. When bit 8 is off, it indicates that 8-byte fields, FIXED(64), are used for the accumulators (one accumulator for each CPU) for SMF23SRB.
• 9–31 - Reserved.

Note: For bits 0–8, all accumulators are never reset for the life of the system.

Total number of getmain requests that have been issued. For more details, see the explanation of SMF23SFG bit 0.

Total number of pages backed during getmain requests that have been issued. For more details, see the explanation of SMF23SFG bit 1.

Total number of fix requests that have been issued for the storage whose address space is below two gigabytes. For more details, see the explanation of SMF23SFG bit 2.

Total number of frames that were requested to be fixed for the storage whose address space is below two gigabytes. For more details, see the explanation of SMF23SFG bit 3.

Total number of first reference faults. For more details, see the explanation of SMF23SFG bit 4.

Total number of non-first reference faults. For more details, see the explanation of SMF23SFG bit 5.

Total number of I/Os for this interval. For more details, see the explanation of SMF23SFG bit 6.

Total number of unlocked TCB dispatches. For more details, see the explanation of SMF23SFG bit 7.

Total number of SRB dispatches. For more details, see the explanation of SMF23SFG bit 8.

Total number of getmain requests that have been issued for this interval. For the cumulative total, see the explanation of SMF23NGR.

Total number of pages backed during GETMAIN requests that have been issued for this interval. For the cumulative total, see the explanation of SMF23PBG.

Total number of fix requests that have been issued for storage (address space only) below two gigabytes for this interval. For the cumulative total, see the explanation of SMF23NFR.

Total number of frames that were requested to be fixed for storage (address space only) below two gigabytes for this interval. For the cumulative total, see the explanation of SMF23PFX.

Total number of first reference faults taken for this interval. For the cumulative total, see the explanation of SMF231RF.

Total number of non-first reference faults taken for this interval. For the cumulative total, see the explanation of SMF23NRF.

Total number of I/Os for this interval. For the cumulative total, see the explanation of SMF23NIO.

Total number of unlocked TCB dispatches for this interval. For the cumulative total, see the explanation of SMF23TCB.

Total number of SRB dispatches for this interval. For the cumulative total, see the explanation of SMF23SRB.

The maximum number of bytes stored in the temporary buffer that is used during SMF initialization.

Length of the logstream name in SMF23LSN.

Logstream name.

Amount of each buffer allocation.

Total amount of buffer storage currently used (in bytes).

Binary high water mark of the buffer allocation (in bytes).

Buffer storage maximum in effect (DSPSIZMAX value in bytes).

Binary buffer warning level in effect (BUFUSEWARN binary value).

Various flags:

• 0 - When on, the buffer warning level in effect was from the global option.
• 1 - When on, the buffer size (DSPSIZMAX) in effect was from the global option.
• 2 - When on, compression is requested for records written to this log stream by SMF configuration. When off, compression is not requested.
• 3 - When on, compression is prepared. This log stream is ready to compress records, or in other words, hardware is capable of using zEDC, and all setup for compression succeeded. When off, hardware is not capable of using zEDC or compression setup failed. See message IFA730I.
• 4 - When on, compression is available. The last use of zEDC was successful, and it indicated zEDC Express features were available to satisfy compression requests. When off, at the last request, zEDC Express features were not available to satisfy compression requests.
• 5 - The current PERMFIX value for this log stream is the global PERMFIX value. In the SMF configuration, a log stream PERMFIX value was not specified.

Total storage SMF is currently using for zEDC for this log stream. Value does not account for 1MB needed by each log stream using zEDC. Value may be up to 2MB greater than the defined PERMFIX value depending on usage.

Max storage SMF can use for zEDC for this log stream. Configuration-defined PERMFIX value.

High water mark of storage SMF has used for zEDC for this log stream connection.

Number of log blocks written containing compressed records during this interval.

Number of log blocks written containing non-compressed records during this interval.

zEDC uncompressed bytes total. For logstreams with compressed data, this field contains the total number of uncompressed bytes that zEDC successfully compressed during the interval. For logstreams with no compressed data, this field contains zeros.

zEDC compressed bytes total. For logstreams with compressed data, this field contains the total number of compressed bytes that were written to the logstream during the interval. For logstreams with no compressed data, this field contains zeros.

High water mark of the percentage of the buffer that is in use.

Current percentage of the buffer that is in use.

For internal use only.

For internal use only.