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astmm.c: Add more stats to CLI "memory show" commands.

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* Add freed regions totals to allocations and summary.

* Add totals for all allocations and not just the selected allocations.

Change-Id: I61d5a5112617b0733097f2545a3006a344b4032a
This commit is contained in:
Richard Mudgett
2016-01-13 18:20:57 -06:00
parent c3d458d226
commit 0a878020dc
1 changed files with 90 additions and 17 deletions
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107
main/astmm.c
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@@ -663,6 +663,32 @@ int __ast_vasprintf(char **strp, const char *fmt, va_list ap, const char *file,
return size;
}
/*!
* \internal
* \brief Count the number of bytes in the specified freed region.
*
* \param freed Already freed region blocks storage.
*
* \note reglock must be locked before calling.
*
* \return Number of bytes in freed region.
*/
static size_t freed_regions_size(struct ast_freed_regions *freed)
{
size_t total_len = 0;
int idx;
struct ast_region *old;
for (idx = 0; idx < ARRAY_LEN(freed->regions); ++idx) {
old = freed->regions[idx];
if (old) {
total_len += old->len;
}
}
return total_len;
}
static char *handle_memory_atexit_list(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
@@ -765,12 +791,54 @@ static char *handle_memory_atexit_summary(struct ast_cli_entry *e, int cmd, stru
return CLI_SUCCESS;
}
/*!
* \internal
* \brief Common summary output at the end of the memory show commands.
*
* \param fd CLI output file descriptor.
* \param whales_len Accumulated size of free large allocations.
* \param minnows_len Accumulated size of free small allocations.
* \param total_len Accumulated size of all current allocations.
* \param selected_len Accumulated size of the selected allocations.
* \param cache_len Accumulated size of the allocations that are part of a cache.
* \param count Number of selected allocations.
*
* \return Nothing
*/
static void print_memory_show_common_stats(int fd,
unsigned int whales_len,
unsigned int minnows_len,
unsigned int total_len,
unsigned int selected_len,
unsigned int cache_len,
unsigned int count)
{
if (cache_len) {
ast_cli(fd, "%10u bytes allocated (%u in caches) in %u selected allocations\n\n",
selected_len, cache_len, count);
} else {
ast_cli(fd, "%10u bytes allocated in %u selected allocations\n\n",
selected_len, count);
}
ast_cli(fd, "%10u bytes in all allocations\n", total_len);
ast_cli(fd, "%10u bytes in deferred free large allocations\n", whales_len);
ast_cli(fd, "%10u bytes in deferred free small allocations\n", minnows_len);
ast_cli(fd, "%10u bytes in deferred free allocations\n",
whales_len + minnows_len);
ast_cli(fd, "%10u bytes in all allocations and deferred free allocations\n",
total_len + whales_len + minnows_len);
}
static char *handle_memory_show_allocations(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
const char *fn = NULL;
struct ast_region *reg;
unsigned int idx;
unsigned int len = 0;
unsigned int whales_len;
unsigned int minnows_len;
unsigned int total_len = 0;
unsigned int selected_len = 0;
unsigned int cache_len = 0;
unsigned int count = 0;
@@ -804,6 +872,7 @@ static char *handle_memory_show_allocations(struct ast_cli_entry *e, int cmd, st
ast_mutex_lock(&reglock);
for (idx = 0; idx < ARRAY_LEN(regions); ++idx) {
for (reg = regions[idx]; reg; reg = AST_LIST_NEXT(reg, node)) {
total_len += reg->len;
if (fn && strcasecmp(fn, reg->file)) {
continue;
}
@@ -814,21 +883,21 @@ static char *handle_memory_show_allocations(struct ast_cli_entry *e, int cmd, st
(unsigned int) reg->len, reg->cache ? " (cache)" : "",
reg->func, reg->lineno, reg->file);
len += reg->len;
selected_len += reg->len;
if (reg->cache) {
cache_len += reg->len;
}
++count;
}
}
whales_len = freed_regions_size(&whales);
minnows_len = freed_regions_size(&minnows);
ast_mutex_unlock(&reglock);
if (cache_len) {
ast_cli(a->fd, "%u bytes allocated (%u in caches) in %u allocations\n",
len, cache_len, count);
} else {
ast_cli(a->fd, "%u bytes allocated in %u allocations\n", len, count);
}
print_memory_show_common_stats(a->fd,
whales_len, minnows_len, total_len,
selected_len, cache_len, count);
return CLI_SUCCESS;
}
@@ -841,7 +910,10 @@ static char *handle_memory_show_summary(struct ast_cli_entry *e, int cmd, struct
int idx;
int cmp;
struct ast_region *reg;
unsigned int len = 0;
unsigned int whales_len;
unsigned int minnows_len;
unsigned int total_len = 0;
unsigned int selected_len = 0;
unsigned int cache_len = 0;
unsigned int count = 0;
struct file_summary {
@@ -859,7 +931,7 @@ static char *handle_memory_show_summary(struct ast_cli_entry *e, int cmd, struct
e->usage =
"Usage: memory show summary [<file>]\n"
" Summarizes heap memory allocations by file, or optionally\n"
" by line, if a file is specified.\n";
" by line if a file is specified.\n";
return NULL;
case CLI_GENERATE:
return NULL;
@@ -874,6 +946,7 @@ static char *handle_memory_show_summary(struct ast_cli_entry *e, int cmd, struct
ast_mutex_lock(&reglock);
for (idx = 0; idx < ARRAY_LEN(regions); ++idx) {
for (reg = regions[idx]; reg; reg = AST_LIST_NEXT(reg, node)) {
total_len += reg->len;
if (fn) {
if (strcasecmp(fn, reg->file)) {
continue;
@@ -932,11 +1005,14 @@ static char *handle_memory_show_summary(struct ast_cli_entry *e, int cmd, struct
++cur->count;
}
}
whales_len = freed_regions_size(&whales);
minnows_len = freed_regions_size(&minnows);
ast_mutex_unlock(&reglock);
/* Dump the whole list */
for (cur = list; cur; cur = cur->next) {
len += cur->len;
selected_len += cur->len;
cache_len += cur->cache_len;
count += cur->count;
if (cur->cache_len) {
@@ -958,12 +1034,9 @@ static char *handle_memory_show_summary(struct ast_cli_entry *e, int cmd, struct
}
}
if (cache_len) {
ast_cli(a->fd, "%u bytes allocated (%u in caches) in %u allocations\n",
len, cache_len, count);
} else {
ast_cli(a->fd, "%u bytes allocated in %u allocations\n", len, count);
}
print_memory_show_common_stats(a->fd,
whales_len, minnows_len, total_len,
selected_len, cache_len, count);
return CLI_SUCCESS;
}