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InnoDB: Optimize rec_get_offsets(), rec_copy_prefix_to_buf() and

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other rec_ functions based on OProfile measurements on GNU/Linux x86.


innobase/include/rem0rec.h:
  Replace FALSE/TRUE ibool comp with zero/nonzero ulint comp.
  Remove rec_set_node_ptr_flag().
innobase/include/rem0rec.ic:
  Replace FALSE/TRUE ibool comp with zero/nonzero ulint comp.
  Remove rec_set_node_ptr_flag().
  Add UNIV_LIKELY and UNIV_UNLIKELY hints.
  Correct a spelling error in comment.
  Simplify rec_get_deleted_flag().
innobase/rem/rem0rec.c:
  Add UNIV_LIKELY and UNIV_UNLIKELY hints.
  rec_init_offsets(), rec_get_offsets_func(): Optimize for x86.
  rec_set_field_extern_bits(): Move "comp" flag outside the loop.
  rec_copy_prefix_to_buf(): Add UNIV_PREFETCH hints.
This commit is contained in:
unknown 2005-04-22 15:27:11 +03:00
commit 1c8f550096
3 changed files with 136 additions and 124 deletions
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34
innobase/include/rem0rec.h
View file

@ -51,7 +51,7 @@ rec_get_next_offs(
/* out: the page offset of the next
chained record */
rec_t* rec, /* in: physical record */
ibool comp); /* in: TRUE=compact page format */
ulint comp); /* in: nonzero=compact page format */
/**********************************************************
The following function is used to set the next record offset field
of the record. */
@ -60,7 +60,7 @@ void
rec_set_next_offs(
/*==============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint next); /* in: offset of the next record */
/**********************************************************
The following function is used to get the number of fields
@ -90,7 +90,7 @@ rec_get_n_owned(
/*============*/
/* out: number of owned records */
rec_t* rec, /* in: physical record */
ibool comp); /* in: TRUE=compact page format */
ulint comp); /* in: nonzero=compact page format */
/**********************************************************
The following function is used to set the number of owned
records. */
@ -99,7 +99,7 @@ void
rec_set_n_owned(
/*============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint n_owned); /* in: the number of owned */
/**********************************************************
The following function is used to retrieve the info bits of
@ -110,7 +110,7 @@ rec_get_info_bits(
/*==============*/
/* out: info bits */
rec_t* rec, /* in: physical record */
ibool comp); /* in: TRUE=compact page format */
ulint comp); /* in: nonzero=compact page format */
/**********************************************************
The following function is used to set the info bits of a record. */
UNIV_INLINE
@ -118,7 +118,7 @@ void
rec_set_info_bits(
/*==============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint bits); /* in: info bits */
/**********************************************************
The following function retrieves the status bits of a new-style record. */
@ -147,7 +147,7 @@ rec_get_info_and_status_bits(
/*=========================*/
/* out: info bits */
rec_t* rec, /* in: physical record */
ibool comp); /* in: TRUE=compact page format */
ulint comp); /* in: nonzero=compact page format */
/**********************************************************
The following function is used to set the info and status
bits of a record. (Only compact records have status bits.) */
@ -156,7 +156,7 @@ void
rec_set_info_and_status_bits(
/*=========================*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint bits); /* in: info bits */
/**********************************************************
@ -167,7 +167,7 @@ rec_get_deleted_flag(
/*=================*/
/* out: TRUE if delete marked */
rec_t* rec, /* in: physical record */
ibool comp); /* in: TRUE=compact page format */
ulint comp); /* in: nonzero=compact page format */
/**********************************************************
The following function is used to set the deleted bit. */
UNIV_INLINE
@ -175,7 +175,7 @@ void
rec_set_deleted_flag(
/*=================*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ibool flag); /* in: TRUE if delete marked */
/**********************************************************
The following function tells if a new-style record is a node pointer. */
@ -186,14 +186,6 @@ rec_get_node_ptr_flag(
/* out: TRUE if node pointer */
rec_t* rec); /* in: physical record */
/**********************************************************
The following function is used to flag a record as a node pointer. */
UNIV_INLINE
void
rec_set_node_ptr_flag(
/*=================*/
rec_t* rec, /* in: physical record */
ibool flag); /* in: TRUE if the record is a node pointer */
/**********************************************************
The following function is used to get the order number
of the record in the heap of the index page. */
UNIV_INLINE
@ -202,7 +194,7 @@ rec_get_heap_no(
/*=============*/
/* out: heap order number */
rec_t* rec, /* in: physical record */
ibool comp); /* in: TRUE=compact page format */
ulint comp); /* in: nonzero=compact page format */
/**********************************************************
The following function is used to set the heap number
field in the record. */
@ -211,7 +203,7 @@ void
rec_set_heap_no(
/*=============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint heap_no);/* in: the heap number */
/**********************************************************
The following function is used to test whether the data offsets
@ -305,7 +297,7 @@ rec_get_nth_field(
Determine if the offsets are for a record in the new
compact format. */
UNIV_INLINE
ibool
ulint
rec_offs_comp(
/*==========*/
/* out: TRUE if compact format */

80
innobase/include/rem0rec.ic
View file

@ -265,7 +265,7 @@ rec_get_next_offs(
/* out: the page offset of the next chained record, or
0 if none */
rec_t* rec, /* in: physical record */
ibool comp) /* in: TRUE=compact page format */
ulint comp) /* in: nonzero=compact page format */
{
ulint field_value;
@ -312,7 +312,7 @@ void
rec_set_next_offs(
/*==============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint next) /* in: offset of the next record, or 0 if none */
{
ut_ad(rec);
@ -414,7 +414,7 @@ rec_get_n_fields(
{
ut_ad(rec);
ut_ad(index);
if (!index->table->comp) {
if (UNIV_UNLIKELY(!index->table->comp)) {
return(rec_get_n_fields_old(rec));
}
switch (rec_get_status(rec)) {
@ -440,7 +440,7 @@ rec_get_n_owned(
/*============*/
/* out: number of owned records */
rec_t* rec, /* in: physical record */
ibool comp) /* in: TRUE=compact page format */
ulint comp) /* in: nonzero=compact page format */
{
ulint ret;
@ -461,7 +461,7 @@ void
rec_set_n_owned(
/*============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint n_owned) /* in: the number of owned */
{
ut_ad(rec);
@ -480,7 +480,7 @@ rec_get_info_bits(
/*==============*/
/* out: info bits */
rec_t* rec, /* in: physical record */
ibool comp) /* in: TRUE=compact page format */
ulint comp) /* in: nonzero=compact page format */
{
ulint ret;
@ -501,7 +501,7 @@ void
rec_set_info_bits(
/*==============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint bits) /* in: info bits */
{
ut_ad(rec);
@ -537,14 +537,14 @@ rec_get_info_and_status_bits(
/*=========================*/
/* out: info bits */
rec_t* rec, /* in: physical record */
ibool comp) /* in: TRUE=compact page format */
ulint comp) /* in: nonzero=compact page format */
{
ulint bits;
#if (REC_NEW_STATUS_MASK >> REC_NEW_STATUS_SHIFT) \
& (REC_INFO_BITS_MASK >> REC_INFO_BITS_SHIFT)
# error "REC_NEW_STATUS_MASK and REC_INFO_BITS_MASK overlap"
#endif
if (comp) {
if (UNIV_EXPECT(comp, REC_OFFS_COMPACT)) {
bits = rec_get_info_bits(rec, TRUE) | rec_get_status(rec);
} else {
bits = rec_get_info_bits(rec, FALSE);
@ -560,7 +560,7 @@ void
rec_set_info_and_status_bits(
/*=========================*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint bits) /* in: info bits */
{
#if (REC_NEW_STATUS_MASK >> REC_NEW_STATUS_SHIFT) \
@ -583,14 +583,15 @@ rec_get_deleted_flag(
/*=================*/
/* out: TRUE if delete marked */
rec_t* rec, /* in: physical record */
ibool comp) /* in: TRUE=compact page format */
ulint comp) /* in: nonzero=compact page format */
{
if (REC_INFO_DELETED_FLAG & rec_get_info_bits(rec, comp)) {
return(TRUE);
if (UNIV_EXPECT(comp, REC_OFFS_COMPACT)) {
return(0 != rec_get_bit_field_1(rec, REC_NEW_INFO_BITS,
REC_INFO_DELETED_FLAG, REC_INFO_BITS_SHIFT));
} else {
return(0 != rec_get_bit_field_1(rec, REC_OLD_INFO_BITS,
REC_INFO_DELETED_FLAG, REC_INFO_BITS_SHIFT));
}
return(FALSE);
}
/**********************************************************
@ -600,24 +601,23 @@ void
rec_set_deleted_flag(
/*=================*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ibool flag) /* in: TRUE if delete marked */
{
ulint old_val;
ulint new_val;
ulint val;
ut_ad(TRUE == 1);
ut_ad(flag <= TRUE);
old_val = rec_get_info_bits(rec, comp);
val = rec_get_info_bits(rec, comp);
if (flag) {
new_val = REC_INFO_DELETED_FLAG | old_val;
val |= REC_INFO_DELETED_FLAG;
} else {
new_val = ~REC_INFO_DELETED_FLAG & old_val;
val &= ~REC_INFO_DELETED_FLAG;
}
rec_set_info_bits(rec, comp, new_val);
rec_set_info_bits(rec, comp, val);
}
/**********************************************************
@ -632,26 +632,6 @@ rec_get_node_ptr_flag(
return(REC_STATUS_NODE_PTR == rec_get_status(rec));
}
/**********************************************************
The following function is used to flag a record as a node pointer. */
UNIV_INLINE
void
rec_set_node_ptr_flag(
/*=================*/
rec_t* rec, /* in: physical record */
ibool flag) /* in: TRUE if the record is a node pointer */
{
ulint status;
ut_ad(flag <= TRUE);
ut_ad(REC_STATUS_NODE_PTR >= rec_get_status(rec));
if (flag) {
status = REC_STATUS_NODE_PTR;
} else {
status = REC_STATUS_ORDINARY;
}
rec_set_status(rec, status);
}
/**********************************************************
The following function is used to get the order number of the record in the
heap of the index page. */
@ -661,7 +641,7 @@ rec_get_heap_no(
/*=============*/
/* out: heap order number */
rec_t* rec, /* in: physical record */
ibool comp) /* in: TRUE=compact page format */
ulint comp) /* in: nonzero=compact page format */
{
ulint ret;
@ -682,7 +662,7 @@ void
rec_set_heap_no(
/*=============*/
rec_t* rec, /* in: physical record */
ibool comp, /* in: TRUE=compact page format */
ulint comp, /* in: nonzero=compact page format */
ulint heap_no)/* in: the heap number */
{
ut_ad(heap_no <= REC_MAX_HEAP_NO);
@ -843,7 +823,7 @@ rec_offs_validate(
{
ulint i = rec_offs_n_fields(offsets);
ulint last = ULINT_MAX;
ibool comp = (*rec_offs_base(offsets) & REC_OFFS_COMPACT) != 0;
ulint comp = *rec_offs_base(offsets) & REC_OFFS_COMPACT;
if (rec) {
ut_ad((ulint) rec == offsets[2]);
@ -926,7 +906,7 @@ rec_get_nth_field(
ut_ad(n < rec_offs_n_fields(offsets));
ut_ad(len);
if (n == 0) {
if (UNIV_UNLIKELY(n == 0)) {
field = rec;
} else {
field = rec + (rec_offs_base(offsets)[n] & REC_OFFS_MASK);
@ -1037,7 +1017,7 @@ rec_set_nth_field_extern_bit(
where rec is, or NULL; in the NULL case
we do not write to log about the change */
{
if (index->table->comp) {
if (UNIV_LIKELY(index->table->comp)) {
rec_set_nth_field_extern_bit_new(rec, index, i, val, mtr);
} else {
rec_set_nth_field_extern_bit_old(rec, i, val, mtr);
@ -1048,7 +1028,7 @@ rec_set_nth_field_extern_bit(
Returns the offset of n - 1th field end if the record is stored in the 1-byte
offsets form. If the field is SQL null, the flag is ORed in the returned
value. This function and the 2-byte counterpart are defined here because the
C-compilerwas not able to sum negative and positive constant offsets, and
C-compiler was not able to sum negative and positive constant offsets, and
warned of constant arithmetic overflow within the compiler. */
UNIV_INLINE
ulint
@ -1452,7 +1432,7 @@ rec_get_converted_size(
? dict_index_get_n_unique_in_tree(index) + 1
: dict_index_get_n_fields(index)));
if (index->table->comp) {
if (UNIV_LIKELY(index->table->comp)) {
return(rec_get_converted_size_new(index, dtuple));
}