Linux Kernel memory tracker
This tool helps users to which kernel functions are allocating and freeing how much memory. Currently this reporting is for a specified process.
This tool written in golang.
It uses objedump, kallsyms, event tracing and creates database of which precise function allocated/freed memory. It can track down which kernel API such as kmalloc/kmalloc_node etc used for memory allocation.
Currently it cannot track page allocations such as alloc_page/__free_pages().
git clone https://github.com/Mellanox/kmtracker.git
cd kmtracker
make
./scripts/start_trace.sh <pid>
./scripts/stop_trace.sh
./kmtracker <trace_file_name.txt> <pid> <absolute_path_to_vmlinux>
Here tracefile is: /sys/kernel/debug/tracing/trace.
pid is: pid whose memory allocations to be tracked.
path to vmlinux: absolute path to vmlinux file. (vmlinuz is not sufficient).
git clone https://github.com/Mellanox/kmtracker.git
cd kmtracker/mm_tracker
go build .
./mm_tracker <trace_file_name>
For running as verbose mode.
./mm_tracker <trace_file_name> -v
(a) Cross reference free with alloc calls.
Parav Pandit <[email protected]>