SMF statistics section

Offsets		Name	Length	Format	Description
0	0	SMF23BFW	4	binary	Number of buffers written.
4	4	SMF23BFQ	4	binary	Maximum number of buffers used at one time.
8	8	SMF23SUS	4		Reserved.
12	C	SMF23RCW	4	binary	Number of records written.
16	10	SMF23BFA	4	binary	Amount of each buffer allocation request.
20	14	SMF23BFT	4	binary	Total amount of buffer storage currently allocated (and recently used).
24	18	SMF23BFH	4	binary	‘High water mark’ of buffer storage allocation.
28	1C	SMF23BFM	4	binary	Buffer storage maximum in effect (BUFSIZMAX binary value).
32	20	SMF23BFL	4	binary	Buffer storage usage warning level in effect (BUFUSEWARN binary value).
36	24	SMF23SFG	4	binary	Statistics section flags. Bit Meaning when set 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.
36	24	SMF23SFG (continued)	4	binary	Continued: Bit Meaning when set 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.
40	28	SMF23NGR	8	binary	Total number of getmain requests that have been issued. For more details, see the explanation of SMF23SFG bit 0.
48	30	SMF23PBG	8	binary	Total number of pages backed during getmain requests that have been issued. For more details, see the explanation of SMF23SFG bit 1.
56	38	SMF23NFR	8	binary	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.
64	40	SMF23PFX	8	binary	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.
72	48	SMF231RF	8	binary	Total number of first reference faults. For more details, see the explanation of SMF23SFG bit 4.
80	50	SMF23NRF	8	binary	Total number of non-first reference faults. For more details, see the explanation of SMF23SFG bit 5.
88	58	SMF23NIO	8	binary	Total number of I/Os for this interval. For more details, see the explanation of SMF23SFG bit 6.
96	60	SMF23TCB	8	binary	Total number of unlocked TCB dispatches. For more details, see the explanation of SMF23SFG bit 7.
104	68	SMF23SRB	8	binary	Total number of SRB dispatches. For more details, see the explanation of SMF23SFG bit 8.
112	70	SMF23NGD	4	binary	Total number of getmain requests that have been issued for this interval. For the cumulative total, see the explanation of SMF23NGR.
116	74	SMF23PBD	4	binary	Total number of pages backed during GETMAIN requests that have been issued for this interval. For the cumulative total, see the explanation of SMF23PBG.
120	78	SMF23NFD	4	binary	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.
124	7C	SMF23PFD	4	binary	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.
128	80	SMF231RD	4	binary	Total number of first reference faults taken for this interval. For the cumulative total, see the explanation of SMF231RF.
132	84	SMF23NRD	4	binary	Total number of non-first reference faults taken for this interval. For the cumulative total, see the explanation of SMF23NRF.
136	88	SMF23NID	8	binary	Total number of I/Os for this interval. For the cumulative total, see the explanation of SMF23NIO.
144	90	SMF23TCD	8	binary	Total number of unlocked TCB dispatches for this interval. For the cumulative total, see the explanation of SMF23TCB.
152	98	SMF23SRD	8	binary	Total number of SRB dispatches for this interval. For the cumulative total, see the explanation of SMF23SRB.