heap_profile - record heap profile on Android device
tools/heap_profile allows to collect native memory profiles on Android. See Recording traces for more details about the data-source.
usage: heap_profile [-h] [-i INTERVAL] [-d DURATION] [--no-start] [-p PIDS]
[-n NAMES] [-c CONTINUOUS_DUMP] [--disable-selinux]
[--no-versions] [--no-running] [--no-startup]
[--shmem-size SHMEM_SIZE] [--block-client]
[--block-client-timeout BLOCK_CLIENT_TIMEOUT]
[--no-block-client] [--idle-allocations] [--dump-at-max]
[--disable-fork-teardown] [--simpleperf]
[--trace-to-text-binary TRACE_TO_TEXT_BINARY]
[--print-config] [-o DIRECTORY]
-n, --name NAMES : Comma-separated list of process names to profile.
-p, --pid PIDS : Comma-separated list of PIDs to profile.
-i, --interval : Sampling interval. Default 4096 (4KiB)
-o, --output DIRECTORY : Output directory.
--all-heaps : Collect allocations from all heaps registered by target.
--block-client : When buffer is full, block the client to wait for buffer space. Use with caution as this can significantly slow down the client. This is the default
--block-client-timeout : If --block-client is given, do not block any allocation for longer than this timeout (us).
-c, --continuous-dump : Dump interval in ms. 0 to disable continuous dump.
-d, --duration : Duration of profile (ms). 0 to run until interrupted. Default: until interrupted by user.
--disable-fork-teardown : Do not tear down client in forks. This can be useful for programs that use vfork. Android 11+ only.
--disable-selinux : Disable SELinux enforcement for duration of profile.
--dump-at-max : Dump the maximum memory usage rather than at the time of the dump.
-h, --help : show this help message and exit
--heaps HEAPS : Comma-separated list of heaps to collect, e.g: malloc,art. Requires Android 12.
--idle-allocations : Keep track of how many bytes were unused since the last dump, per callstack
--no-android-tree-symbolization : Do not symbolize using currently lunched target in the Android tree.
--no-block-client : When buffer is full, stop the profile early.
--no-running : Do not target already running processes. Requires Android 11.
--no-start : Do not start heapprofd.
--no-startup : Do not target processes that start during the profile. Requires Android 11.
--no-versions : Do not get version information about APKs.
--print-config : Print config instead of running. For debugging.
--shmem-size : Size of buffer between client and heapprofd. Default 8MiB. Needs to be a power of two multiple of 4096, at least 8192.
--simpleperf : Get simpleperf profile of heapprofd. This is only for heapprofd development.
--trace-to-text-binary : Path to local trace to text. For debugging.