emo/procps
1
0
Fork 0
Code Issues Pull Requests Packages Releases Activity

library: most function names now more profile friendly

Browse Source 
This patch will begin some refinements associated with
gprof. Initially, functions names have been changed to
help in identifying potential bottlenecks. This effort
also included the obscure set, free and sort routines.

Plus the following additional modifications were made:

. the stacks_alloc prologue was generalized plus added
to a couple of modules where it had not yet propagated

. a couple of the '// end ...' comments were corrected

. some functions have been formally tagged as 'inline'

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner
2016-08-21 00:00:00 -05:00
committed by Craig Small
parent b3b6984bfe
commit 4fe42d0be9
6 changed files with 326 additions and 311 deletions
Download Patch File Download Diff File Expand all files Collapse all files

93
proc/slabinfo.c
View File

@@ -136,7 +136,7 @@ struct slabinfo_info {
// ___ Results 'Set' Support ||||||||||||||||||||||||||||||||||||||||||||||||||
#define setNAME(e) set_results_ ## e
#define setNAME(e) set_slabinfo_ ## e
#define setDECL(e) static void setNAME(e) \
(struct slabinfo_result *R, struct slabs_hist *S, struct slabs_node *N)
@@ -199,7 +199,7 @@ struct sort_parms {
enum slabinfo_sort_order order;
};
#define srtNAME(t) sort_results_ ## t
#define srtNAME(t) sort_slabinfo_ ## t
#define srtDECL(t) static int srtNAME(t) \
(const struct slabinfo_stack **A, const struct slabinfo_stack **B, struct sort_parms *P)
@@ -506,7 +506,7 @@ static int read_slabinfo_failed (
// ___ Private Functions ||||||||||||||||||||||||||||||||||||||||||||||||||||||
// --- generalized support ----------------------------------------------------
static inline void assign_results (
static inline void slabinfo_assign_results (
struct slabinfo_stack *stack,
struct slabs_hist *summ,
struct slabs_node *node)
@@ -521,10 +521,10 @@ static inline void assign_results (
++this;
}
return;
} // end: assign_results
} // end: slabinfo_assign_results
static inline void cleanup_stack (
static inline void slabinfo_cleanup_stack (
struct slabinfo_result *this)
{
for (;;) {
@@ -534,10 +534,10 @@ static inline void cleanup_stack (
this->result.ul_int = 0;
++this;
}
} // end: cleanup_stack
} // end: slabinfo_cleanup_stack
static inline void cleanup_stacks_all (
static inline void slabinfo_cleanup_stacks_all (
struct ext_support *this)
{
struct stacks_extent *ext = this->extents;
@@ -545,14 +545,14 @@ static inline void cleanup_stacks_all (
while (ext) {
for (i = 0; ext->stacks[i]; i++)
cleanup_stack(ext->stacks[i]->head);
slabinfo_cleanup_stack(ext->stacks[i]->head);
ext = ext->next;
};
this->dirty_stacks = 0;
} // end: cleanup_stacks_all
} // end: slabinfo_cleanup_stacks_all
static void extents_free_all (
static void slabinfo_extents_free_all (
struct ext_support *this)
{
while (this->extents) {
@@ -560,10 +560,10 @@ static void extents_free_all (
this->extents = this->extents->next;
free(p);
};
} // end: extents_free_all
} // end: slabinfo_extents_free_all
static inline struct slabinfo_result *itemize_stack (
static inline struct slabinfo_result *slabinfo_itemize_stack (
struct slabinfo_result *p,
int depth,
enum slabinfo_item *items)
@@ -577,10 +577,10 @@ static inline struct slabinfo_result *itemize_stack (
++p;
}
return p_sav;
} // end: itemize_stack
} // end: slabinfo_itemize_stack
static void itemize_stacks_all (
static void slabinfo_itemize_stacks_all (
struct ext_support *this)
{
struct stacks_extent *ext = this->extents;
@@ -588,14 +588,14 @@ static void itemize_stacks_all (
while (ext) {
int i;
for (i = 0; ext->stacks[i]; i++)
itemize_stack(ext->stacks[i]->head, this->numitems, this->items);
slabinfo_itemize_stack(ext->stacks[i]->head, this->numitems, this->items);
ext = ext->next;
};
this->dirty_stacks = 0;
} // end: static void itemize_stacks_all
} // end: slabinfo_itemize_stacks_all
static inline int items_check_failed (
static inline int slabinfo_items_check_failed (
struct ext_support *this,
enum slabinfo_item *items,
int numitems)
@@ -632,10 +632,21 @@ static inline int items_check_failed (
}
return 0;
} // end: items_check_failed
} // end: slabinfo_items_check_failed
static struct stacks_extent *stacks_alloc (
/*
* slabinfo_stacks_alloc():
*
* Allocate and initialize one or more stacks each of which is anchored in an
* associated context structure.
*
* All such stacks will have their result structures properly primed with
* 'items', while the result itself will be zeroed.
*
* Returns a stacks_extent struct anchoring the 'heads' of each new stack.
*/
static struct stacks_extent *slabinfo_stacks_alloc (
struct ext_support *this,
int maxstacks)
{
@@ -675,17 +686,17 @@ static struct stacks_extent *stacks_alloc (
for (i = 0; i < maxstacks; i++) {
p_head = (struct slabinfo_stack *)v_head;
p_head->head = itemize_stack((struct slabinfo_result *)v_list, this->numitems, this->items);
p_head->head = slabinfo_itemize_stack((struct slabinfo_result *)v_list, this->numitems, this->items);
p_blob->stacks[i] = p_head;
v_list += list_size;
v_head += head_size;
}
p_blob->ext_numstacks = maxstacks;
return p_blob;
} // end: stacks_alloc
} // end: slabinfo_stacks_alloc
static int stacks_fetch (
static int slabinfo_stacks_fetch (
struct slabinfo_info *info)
{
#define n_alloc info->fetch.n_alloc
@@ -700,13 +711,13 @@ static int stacks_fetch (
n_alloc = STACKS_INCR;
}
if (!info->fetch_ext.extents) {
if (!(ext = stacks_alloc(&info->fetch_ext, n_alloc)))
if (!(ext = slabinfo_stacks_alloc(&info->fetch_ext, n_alloc)))
return -ENOMEM;
memset(info->fetch.anchor, 0, sizeof(void *) * n_alloc);
memcpy(info->fetch.anchor, ext->stacks, sizeof(void *) * n_alloc);
itemize_stacks_all(&info->fetch_ext);
slabinfo_itemize_stacks_all(&info->fetch_ext);
}
cleanup_stacks_all(&info->fetch_ext);
slabinfo_cleanup_stacks_all(&info->fetch_ext);
// iterate stuff --------------------------------------
n_inuse = 0;
@@ -714,11 +725,11 @@ static int stacks_fetch (
if (!(n_inuse < n_alloc)) {
n_alloc += STACKS_INCR;
if ((!(info->fetch.anchor = realloc(info->fetch.anchor, sizeof(void *) * n_alloc)))
|| (!(ext = stacks_alloc(&info->fetch_ext, STACKS_INCR))))
|| (!(ext = slabinfo_stacks_alloc(&info->fetch_ext, STACKS_INCR))))
return -1;
memcpy(info->fetch.anchor + n_inuse, ext->stacks, sizeof(void *) * STACKS_INCR);
}
assign_results(info->fetch.anchor[n_inuse], &info->hist, &info->nodes[n_inuse]);
slabinfo_assign_results(info->fetch.anchor[n_inuse], &info->hist, &info->nodes[n_inuse]);
++n_inuse;
}
@@ -740,15 +751,15 @@ static int stacks_fetch (
#undef n_alloc
#undef n_inuse
#undef n_saved
} // end: stacks_fetch
} // end: slabinfo_stacks_fetch
static int stacks_reconfig_maybe (
static int slabinfo_stacks_reconfig_maybe (
struct ext_support *this,
enum slabinfo_item *items,
int numitems)
{
if (items_check_failed(this, items, numitems))
if (slabinfo_items_check_failed(this, items, numitems))
return -EINVAL;
/* is this the first time or have things changed since we were last called?
if so, gotta' redo all of our stacks stuff ... */
@@ -761,11 +772,11 @@ static int stacks_reconfig_maybe (
this->items[numitems] = SLABINFO_logical_end;
this->numitems = numitems + 1;
if (this->extents)
extents_free_all(this);
slabinfo_extents_free_all(this);
return 1;
}
return 0;
} // end: stacks_reconfig_maybe
} // end: slabinfo_stacks_reconfig_maybe
// ___ Public Functions |||||||||||||||||||||||||||||||||||||||||||||||||||||||
@@ -838,7 +849,7 @@ PROCPS_EXPORT int procps_slabinfo_unref (
(*info)->slabinfo_fp = NULL;
}
if ((*info)->select_ext.extents)
extents_free_all((&(*info)->select_ext));
slabinfo_extents_free_all((&(*info)->select_ext));
if ((*info)->select_ext.items)
free((*info)->select_ext.items);
@@ -848,7 +859,7 @@ PROCPS_EXPORT int procps_slabinfo_unref (
free((*info)->fetch.results.stacks);
if ((*info)->fetch_ext.extents)
extents_free_all(&(*info)->fetch_ext);
slabinfo_extents_free_all(&(*info)->fetch_ext);
if ((*info)->fetch_ext.items)
free((*info)->fetch_ext.items);
@@ -911,15 +922,15 @@ PROCPS_EXPORT struct slabinfo_reap *procps_slabinfo_reap (
if (info == NULL || items == NULL)
return NULL;
if (0 > stacks_reconfig_maybe(&info->fetch_ext, items, numitems))
if (0 > slabinfo_stacks_reconfig_maybe(&info->fetch_ext, items, numitems))
return NULL;
if (info->fetch_ext.dirty_stacks)
cleanup_stacks_all(&info->fetch_ext);
slabinfo_cleanup_stacks_all(&info->fetch_ext);
if (read_slabinfo_failed(info))
return NULL;
stacks_fetch(info);
slabinfo_stacks_fetch(info);
info->fetch_ext.dirty_stacks = 1;
return &info->fetch.results;
@@ -941,19 +952,19 @@ PROCPS_EXPORT struct slabinfo_stack *procps_slabinfo_select (
if (info == NULL || items == NULL)
return NULL;
if (0 > stacks_reconfig_maybe(&info->select_ext, items, numitems))
if (0 > slabinfo_stacks_reconfig_maybe(&info->select_ext, items, numitems))
return NULL;
if (!info->select_ext.extents
&& !(stacks_alloc(&info->select_ext, 1)))
&& !(slabinfo_stacks_alloc(&info->select_ext, 1)))
return NULL;
if (info->select_ext.dirty_stacks)
cleanup_stacks_all(&info->select_ext);
slabinfo_cleanup_stacks_all(&info->select_ext);
if (read_slabinfo_failed(info))
return NULL;
assign_results(info->select_ext.extents->stacks[0], &info->hist, &info->nul_node);
slabinfo_assign_results(info->select_ext.extents->stacks[0], &info->hist, &info->nul_node);
info->select_ext.dirty_stacks = 1;
return info->select_ext.extents->stacks[0];