A way to view memory allocation in Xcode / lldb
I have a simple program and set a breakpoint to see how to monitor memory allocation within a debugging interface (instead of, for example, with valgrind):
The above program should allocate a lot of memory. It seems like the "Memory" icon on the left is unrelated to dynamic memory allocation (perhaps it's related to the amount of memory Xcode itself is using). Is there a command to see how much memory has been allocated within lldb, for example, similar to (gdb) call malloc_stats()? I know there is the Instruments application (which I've used), but I'm more interested in being able to step through the total memory usage while debugging it. Or, is there some GUI command/panel that will show this?
The memory gauge does reflect the memory your program allocates. If you do what Jason suggests, you will see that rise as you allocate more memory.
There are a couple of commands: "memory region" and "malloc_info", that will tell you the allocation history or state of memory containing a particular address. But lldb doesn't have a general "show me all allocated memory regions" command, like malloc_stats.
You can also use the Xcode "Debug Memory Graph" button to view the memory allocations - including all the Malloc blocks - in your program.
- Simple frame by frame video decoder library
- GCC no longer implements <varargs.h>
- Contents of IO buffer unknown == unsafe?
- Avoiding strcpy overflow destination warning
- Sort program not working, not sure why
- Fast & accurate atan/arctan approximation algorithm
- What's the difference between strtok_r and strtok_s in C?
- How memory address for pointer to arrays is same as an element in 2D array?
- Which is the best way to suppress "unused variable" warning
- How to use ellipsis in c's case statement?
- How can I exclude non-numeric keys? CS50 Caesar Pset2
- Fast ceiling of an integer division in C / C++
- Is there an invalid pthread_t id?
- How to Implement Universal Setter/Getter Functions for Interrupt-Driven Variables in Embedded C?
- How does SIMD (avx) processing work? for example, if I want 10 32 bit floats how do i fit in a 256 bit avx vector?
- FDCAN problems on STM32G4
- How does the call macro enable mutual recursion between functions f and g in this Hanoi Tower implementation?
- Running test on Rocket core CPU - global variable initialized to 0 is unsuccessful, output wrong value instead
- Interacting with C arrays without knowing the size
- Combination of two strings
- carriage return by fgets
- How to use special characters in C?
- Why does 1.0/100.0 == 0.1/10.0 give True?
- Is it correct to compare pointers in C?
- Force free() to return malloc memory back to OS
- How can I print to standard error in C with 'printf'?
- What is the standard behavior of fread in C on Windows?
- How is strtok removing lines it shouldn't have access to?
- Using array as smart point in C
- Assigning string to malloced 2d char array not working as intended