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Diffstat (limited to 'malloc/memusage.c')
-rw-r--r--malloc/memusage.c152
1 files changed, 89 insertions, 63 deletions
diff --git a/malloc/memusage.c b/malloc/memusage.c
index b5077ffe0b..d11e9e6ed5 100644
--- a/malloc/memusage.c
+++ b/malloc/memusage.c
@@ -80,6 +80,7 @@ static memusage_cntr_t large;
static memusage_cntr_t calls_total;
static memusage_cntr_t inplace;
static memusage_cntr_t decreasing;
+static memusage_cntr_t realloc_free;
static memusage_cntr_t inplace_mremap;
static memusage_cntr_t decreasing_mremap;
static memusage_size_t current_heap;
@@ -103,8 +104,8 @@ extern const char *__progname;
struct entry
{
- size_t heap;
- size_t stack;
+ uint64_t heap;
+ uint64_t stack;
uint32_t time_low;
uint32_t time_high;
};
@@ -128,8 +129,8 @@ update_data (struct header *result, size_t len, size_t old_len)
/* Compute current heap usage and compare it with the maximum value. */
memusage_size_t heap
- = atomic_exchange_and_add (&current_heap, len - old_len) + len - old_len;
- atomic_max (&peak_heap, heap);
+ = catomic_exchange_and_add (&current_heap, len - old_len) + len - old_len;
+ catomic_max (&peak_heap, heap);
/* Compute current stack usage and compare it with the maximum
value. The base stack pointer might not be set if this is not
@@ -152,15 +153,15 @@ update_data (struct header *result, size_t len, size_t old_len)
start_sp = sp;
size_t current_stack = start_sp - sp;
#endif
- atomic_max (&peak_stack, current_stack);
+ catomic_max (&peak_stack, current_stack);
/* Add up heap and stack usage and compare it with the maximum value. */
- atomic_max (&peak_total, heap + current_stack);
+ catomic_max (&peak_total, heap + current_stack);
/* Store the value only if we are writing to a file. */
if (fd != -1)
{
- uatomic32_t idx = atomic_exchange_and_add (&buffer_cnt, 1);
+ uatomic32_t idx = catomic_exchange_and_add (&buffer_cnt, 1);
if (idx >= 2 * buffer_size)
{
/* We try to reset the counter to the correct range. If
@@ -168,7 +169,7 @@ update_data (struct header *result, size_t len, size_t old_len)
counter it does not matter since that thread will take
care of the correction. */
unsigned int reset = idx - 2 * buffer_size;
- atomic_compare_and_exchange_val_acq (&buffer_size, reset, idx);
+ catomic_compare_and_exchange_val_acq (&buffer_size, reset, idx);
idx = reset;
}
@@ -267,6 +268,7 @@ me (void)
GETTIME (first.time_low, first.time_high);
/* Write it two times since we need the starting and end time. */
write (fd, &first, sizeof (first));
+ write (fd, &first, sizeof (first));
/* Determine the buffer size. We use the default if the
environment variable is not present. */
@@ -337,24 +339,24 @@ malloc (size_t len)
return (*mallocp) (len);
/* Keep track of number of calls. */
- atomic_increment (&calls[idx_malloc]);
+ catomic_increment (&calls[idx_malloc]);
/* Keep track of total memory consumption for `malloc'. */
- atomic_add (&total[idx_malloc], len);
+ catomic_add (&total[idx_malloc], len);
/* Keep track of total memory requirement. */
- atomic_add (&grand_total, len);
+ catomic_add (&grand_total, len);
/* Remember the size of the request. */
if (len < 65536)
- atomic_increment (&histogram[len / 16]);
+ catomic_increment (&histogram[len / 16]);
else
- atomic_increment (&large);
+ catomic_increment (&large);
/* Total number of calls of any of the functions. */
- atomic_increment (&calls_total);
+ catomic_increment (&calls_total);
/* Do the real work. */
result = (struct header *) (*mallocp) (len + sizeof (struct header));
if (result == NULL)
{
- atomic_increment (&failed[idx_malloc]);
+ catomic_increment (&failed[idx_malloc]);
return NULL;
}
@@ -403,36 +405,53 @@ realloc (void *old, size_t len)
}
/* Keep track of number of calls. */
- atomic_increment (&calls[idx_realloc]);
+ catomic_increment (&calls[idx_realloc]);
if (len > old_len)
{
/* Keep track of total memory consumption for `realloc'. */
- atomic_add (&total[idx_realloc], len - old_len);
+ catomic_add (&total[idx_realloc], len - old_len);
/* Keep track of total memory requirement. */
- atomic_add (&grand_total, len - old_len);
+ catomic_add (&grand_total, len - old_len);
}
+
+ if (len == 0 && old != NULL)
+ {
+ /* Special case. */
+ catomic_increment (&realloc_free);
+ /* Keep track of total memory freed using `free'. */
+ catomic_add (&total[idx_free], real->length);
+
+ /* Update the allocation data and write out the records if necessary. */
+ update_data (NULL, 0, old_len);
+
+ /* Do the real work. */
+ (*freep) (real);
+
+ return NULL;
+ }
+
/* Remember the size of the request. */
if (len < 65536)
- atomic_increment (&histogram[len / 16]);
+ catomic_increment (&histogram[len / 16]);
else
- atomic_increment (&large);
+ catomic_increment (&large);
/* Total number of calls of any of the functions. */
- atomic_increment (&calls_total);
+ catomic_increment (&calls_total);
/* Do the real work. */
result = (struct header *) (*reallocp) (real, len + sizeof (struct header));
if (result == NULL)
{
- atomic_increment (&failed[idx_realloc]);
+ catomic_increment (&failed[idx_realloc]);
return NULL;
}
/* Record whether the reduction/increase happened in place. */
if (real == result)
- atomic_increment (&inplace);
+ catomic_increment (&inplace);
/* Was the buffer increased? */
if (old_len > len)
- atomic_increment (&decreasing);
+ catomic_increment (&decreasing);
/* Update the allocation data and write out the records if necessary. */
update_data (result, len, old_len);
@@ -463,16 +482,16 @@ calloc (size_t n, size_t len)
return (*callocp) (n, len);
/* Keep track of number of calls. */
- atomic_increment (&calls[idx_calloc]);
+ catomic_increment (&calls[idx_calloc]);
/* Keep track of total memory consumption for `calloc'. */
- atomic_add (&total[idx_calloc], size);
+ catomic_add (&total[idx_calloc], size);
/* Keep track of total memory requirement. */
- atomic_add (&grand_total, size);
+ catomic_add (&grand_total, size);
/* Remember the size of the request. */
if (size < 65536)
- atomic_increment (&histogram[size / 16]);
+ catomic_increment (&histogram[size / 16]);
else
- atomic_increment (&large);
+ catomic_increment (&large);
/* Total number of calls of any of the functions. */
++calls_total;
@@ -480,7 +499,7 @@ calloc (size_t n, size_t len)
result = (struct header *) (*mallocp) (size + sizeof (struct header));
if (result == NULL)
{
- atomic_increment (&failed[idx_calloc]);
+ catomic_increment (&failed[idx_calloc]);
return NULL;
}
@@ -517,7 +536,7 @@ free (void *ptr)
/* `free (NULL)' has no effect. */
if (ptr == NULL)
{
- atomic_increment (&calls[idx_free]);
+ catomic_increment (&calls[idx_free]);
return;
}
@@ -531,9 +550,9 @@ free (void *ptr)
}
/* Keep track of number of calls. */
- atomic_increment (&calls[idx_free]);
+ catomic_increment (&calls[idx_free]);
/* Keep track of total memory freed using `free'. */
- atomic_add (&total[idx_free], real->length);
+ catomic_add (&total[idx_free], real->length);
/* Update the allocation data and write out the records if necessary. */
update_data (NULL, 0, real->length);
@@ -567,22 +586,22 @@ mmap (void *start, size_t len, int prot, int flags, int fd, off_t offset)
? idx_mmap_a : prot & PROT_WRITE ? idx_mmap_w : idx_mmap_r);
/* Keep track of number of calls. */
- atomic_increment (&calls[idx]);
+ catomic_increment (&calls[idx]);
/* Keep track of total memory consumption for `malloc'. */
- atomic_add (&total[idx], len);
+ catomic_add (&total[idx], len);
/* Keep track of total memory requirement. */
- atomic_add (&grand_total, len);
+ catomic_add (&grand_total, len);
/* Remember the size of the request. */
if (len < 65536)
- atomic_increment (&histogram[len / 16]);
+ catomic_increment (&histogram[len / 16]);
else
- atomic_increment (&large);
+ catomic_increment (&large);
/* Total number of calls of any of the functions. */
- atomic_increment (&calls_total);
+ catomic_increment (&calls_total);
/* Check for failures. */
if (result == NULL)
- atomic_increment (&failed[idx]);
+ catomic_increment (&failed[idx]);
else if (idx == idx_mmap_w)
/* Update the allocation data and write out the records if
necessary. Note the first parameter is NULL which means
@@ -619,22 +638,22 @@ mmap64 (void *start, size_t len, int prot, int flags, int fd, off64_t offset)
? idx_mmap_a : prot & PROT_WRITE ? idx_mmap_w : idx_mmap_r);
/* Keep track of number of calls. */
- atomic_increment (&calls[idx]);
+ catomic_increment (&calls[idx]);
/* Keep track of total memory consumption for `malloc'. */
- atomic_add (&total[idx], len);
+ catomic_add (&total[idx], len);
/* Keep track of total memory requirement. */
- atomic_add (&grand_total, len);
+ catomic_add (&grand_total, len);
/* Remember the size of the request. */
if (len < 65536)
- atomic_increment (&histogram[len / 16]);
+ catomic_increment (&histogram[len / 16]);
else
- atomic_increment (&large);
+ catomic_increment (&large);
/* Total number of calls of any of the functions. */
- atomic_increment (&calls_total);
+ catomic_increment (&calls_total);
/* Check for failures. */
if (result == NULL)
- atomic_increment (&failed[idx]);
+ catomic_increment (&failed[idx]);
else if (idx == idx_mmap_w)
/* Update the allocation data and write out the records if
necessary. Note the first parameter is NULL which means
@@ -673,33 +692,33 @@ mremap (void *start, size_t old_len, size_t len, int flags, ...)
if (!not_me && trace_mmap)
{
/* Keep track of number of calls. */
- atomic_increment (&calls[idx_mremap]);
+ catomic_increment (&calls[idx_mremap]);
if (len > old_len)
{
/* Keep track of total memory consumption for `malloc'. */
- atomic_add (&total[idx_mremap], len - old_len);
+ catomic_add (&total[idx_mremap], len - old_len);
/* Keep track of total memory requirement. */
- atomic_add (&grand_total, len - old_len);
+ catomic_add (&grand_total, len - old_len);
}
/* Remember the size of the request. */
if (len < 65536)
- atomic_increment (&histogram[len / 16]);
+ catomic_increment (&histogram[len / 16]);
else
- atomic_increment (&large);
+ catomic_increment (&large);
/* Total number of calls of any of the functions. */
- atomic_increment (&calls_total);
+ catomic_increment (&calls_total);
/* Check for failures. */
if (result == NULL)
- atomic_increment (&failed[idx_mremap]);
+ catomic_increment (&failed[idx_mremap]);
else
{
/* Record whether the reduction/increase happened in place. */
if (start == result)
- atomic_increment (&inplace_mremap);
+ catomic_increment (&inplace_mremap);
/* Was the buffer increased? */
if (old_len > len)
- atomic_increment (&decreasing_mremap);
+ catomic_increment (&decreasing_mremap);
/* Update the allocation data and write out the records if
necessary. Note the first parameter is NULL which means
@@ -733,19 +752,19 @@ munmap (void *start, size_t len)
if (!not_me && trace_mmap)
{
/* Keep track of number of calls. */
- atomic_increment (&calls[idx_munmap]);
+ catomic_increment (&calls[idx_munmap]);
if (__builtin_expect (result == 0, 1))
{
/* Keep track of total memory freed using `free'. */
- atomic_add (&total[idx_munmap], len);
+ catomic_add (&total[idx_munmap], len);
/* Update the allocation data and write out the records if
necessary. */
update_data (NULL, 0, len);
}
else
- atomic_increment (&failed[idx_munmap]);
+ catomic_increment (&failed[idx_munmap]);
}
return result;
@@ -770,7 +789,12 @@ dest (void)
if (fd != -1)
{
/* Write the partially filled buffer. */
- write (fd, buffer, buffer_cnt * sizeof (struct entry));
+ if (buffer_cnt > buffer_size)
+ write (fd, buffer + buffer_size,
+ (buffer_cnt - buffer_size) * sizeof (struct entry));
+ else
+ write (fd, buffer, buffer_cnt * sizeof (struct entry));
+
/* Go back to the beginning of the file. We allocated two records
here when we opened the file. */
lseek (fd, 0, SEEK_SET);
@@ -794,7 +818,7 @@ dest (void)
\e[01;32mMemory usage summary:\e[0;0m heap total: %llu, heap peak: %lu, stack peak: %lu\n\
\e[04;34m total calls total memory failed calls\e[0m\n\
\e[00;34m malloc|\e[0m %10lu %12llu %s%12lu\e[00;00m\n\
-\e[00;34mrealloc|\e[0m %10lu %12llu %s%12lu\e[00;00m (in place: %ld, dec: %ld)\n\
+\e[00;34mrealloc|\e[0m %10lu %12llu %s%12lu\e[00;00m (nomove:%ld, dec:%ld, free:%ld)\n\
\e[00;34m calloc|\e[0m %10lu %12llu %s%12lu\e[00;00m\n\
\e[00;34m free|\e[0m %10lu %12llu\n",
(unsigned long long int) grand_total, (unsigned long int) peak_heap,
@@ -807,7 +831,9 @@ dest (void)
(unsigned long long int) total[idx_realloc],
failed[idx_realloc] ? "\e[01;41m" : "",
(unsigned long int) failed[idx_realloc],
- (unsigned long int) inplace, (unsigned long int) decreasing,
+ (unsigned long int) inplace,
+ (unsigned long int) decreasing,
+ (unsigned long int) realloc_free,
(unsigned long int) calls[idx_calloc],
(unsigned long long int) total[idx_calloc],
failed[idx_calloc] ? "\e[01;41m" : "",
@@ -820,7 +846,7 @@ dest (void)
\e[00;34mmmap(r)|\e[0m %10lu %12llu %s%12lu\e[00;00m\n\
\e[00;34mmmap(w)|\e[0m %10lu %12llu %s%12lu\e[00;00m\n\
\e[00;34mmmap(a)|\e[0m %10lu %12llu %s%12lu\e[00;00m\n\
-\e[00;34m mremap|\e[0m %10lu %12llu %s%12lu\e[00;00m (in place: %ld, dec: %ld)\n\
+\e[00;34m mremap|\e[0m %10lu %12llu %s%12lu\e[00;00m (nomove: %ld, dec:%ld)\n\
\e[00;34m munmap|\e[0m %10lu %12llu %s%12lu\e[00;00m\n",
(unsigned long int) calls[idx_mmap_r],
(unsigned long long int) total[idx_mmap_r],