SUP-able functions
| Function | Arguments | Description |
|---|---|---|
console_level/1 | (Level) | Set the console (Erlang VM’s console) log level |
crash/0 | Creates a debug dump file and halts the VM | |
debug_dump/0 | Created a debug dump file in /tmp/{NODE}_{TIMESTAMP} | |
error_level/1 | (Level) | Set the error log file’s log level |
ets_info/0 | Prints information about the system’s ETS tables | |
gc_all/0 | Garbage collects all running processes (500ms pause between each proc) | |
gc_pids/1 | (Ps) | Garbage collect a list of PIDs |
gc_top_mem_consumers/0 | Garbage collect the top 10 memory consuming PIDs | |
gc_top_mem_consumers/1 | (N) | Garbage collect the top N memory consuming PIDs |
hotload/1 | (Module) | Hotload a the corresponding {MODULE}.beam file |
hotload_app/1 | (App) | Hotload all listed modules in the {APP}.app |
mem_info/0 | Prints information about memory usage in the VM | |
mem_info/1 | (TopN) | Prints information about memory usage in the VM and top N applications |
syslog_level/1 | (Level) | Set the syslog log level |
top_mem_consumers/0 | Print the top 10 memory consuming processes | |
top_mem_consumers/1 | (Len) | Print the top N memory consuming processes |
mem_info/0 and mem_info/1
Reports the memory usage for the Erlang VM and per-Erlang-application:
kazoo_maintenance:mem_info().
VM Memory Info:
total : 261M
processes : 116M
processes_used : 116M
system : 144M
atom : 3M
atom_used : 3M
binary : 3M
code : 89M
ets : 7M
App Memory Info:
Application | Memory | Procs | BigPid
kernel | 1M | 158 | <0.7138.0> 932K
stdlib | 1M | 181 | <0.3654.0> 813K
amqp_client | 993K | 788 | <0.3864.0> 32K
kazoo_apps | 468K | 151 | <0.4948.0> 4K
rabbit_common | 421K | 795 | <0.3863.0> 5K
trunkstore | 387K | 152 | <0.6876.0> 5K
lager | 360K | 9 | <0.3786.0> 356K
ecallmgr | 278K | 36 | <0.7309.0> 56K
In the above, the reader can see that 36 processes associated with ecallmgr use 271K memory with PID 0.7309.0 being the largest of those at 56K memory usage.