以編程方式檢索iPhone上的內存使用情況我正在嘗試檢索我的iPhone應用程序在任何時候以編程方式使用的內存量。是的，我知道Objectalloc/泄漏。我對這些并不感興趣，只是想知道是否有可能編寫一些代碼，獲取所使用的字節數并通過NSLog報告它。
3 回答
忽然笑
TA貢獻1806條經驗 獲得超5個贊
#import <mach/mach.h>// ...void report_memory(void) {
struct task_basic_info info;
mach_msg_type_number_t size = TASK_BASIC_INFO_COUNT;
kern_return_t kerr = task_info(mach_task_self(),
TASK_BASIC_INFO,
(task_info_t)&info,
&size);
if( kerr == KERN_SUCCESS ) {
NSLog(@"Memory in use (in bytes): %lu", info.resident_size);
NSLog(@"Memory in use (in MiB): %f", ((CGFloat)info.resident_size / 1048576));
} else {
NSLog(@"Error with task_info(): %s", mach_error_string(kerr));
}}
慕桂英3389331
TA貢獻2036條經驗 獲得超8個贊
TASK_BASIC_INFO
/* Don't use this, use MACH_TASK_BASIC_INFO instead */
MACH_TASK_BASIC_INFO:
void report_memory(void){
struct mach_task_basic_info info;
mach_msg_type_number_t size = MACH_TASK_BASIC_INFO_COUNT;
kern_return_t kerr = task_info(mach_task_self(),
MACH_TASK_BASIC_INFO,
(task_info_t)&info,
&size);
if( kerr == KERN_SUCCESS ) {
NSLog(@"Memory in use (in bytes): %u", info.resident_size);
} else {
NSLog(@"Error with task_info(): %s", mach_error_string(kerr));
}}
手掌心
TA貢獻1942條經驗 獲得超3個贊
void report_memory(void) {
static unsigned last_resident_size=0;
static unsigned greatest = 0;
static unsigned last_greatest = 0;
struct task_basic_info info;
mach_msg_type_number_t size = sizeof(info);
kern_return_t kerr = task_info(mach_task_self(),
TASK_BASIC_INFO,
(task_info_t)&info,
&size);
if( kerr == KERN_SUCCESS ) {
int diff = (int)info.resident_size - (int)last_resident_size;
unsigned latest = info.resident_size;
if( latest > greatest ) greatest = latest; // track greatest mem usage
int greatest_diff = greatest - last_greatest;
int latest_greatest_diff = latest - greatest;
NSLog(@"Mem: %10u (%10d) : %10d : greatest: %10u (%d)", info.resident_size, diff,
latest_greatest_diff,
greatest, greatest_diff );
} else {
NSLog(@"Error with task_info(): %s", mach_error_string(kerr));
}
last_resident_size = info.resident_size;
last_greatest = greatest;}- 3 回答
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