memoir

Memoir is a small tool to monitor RAM usage on a per-process basis. Once started, it will start collecting a history of RAM usage, and on prompt will dump it to a tab-separated CSV file:

Iteration	Timestamp	PID	Name	Memory MB	Command line
1	1705004896927	1210	/usr/bin/i3bar	4	i3bar --bar_id=bar-0
1	1705004896927	362861	/usr/lib/firefox/firefox	80	/usr/lib/firefox/firefox -contentproc -childID 5274 -isForBrowser
2	1705004897930	1210	/usr/bin/i3bar	4	i3bar --bar_id=bar-0
2	1705004897930	362861	/usr/lib/firefox/firefox	91	/usr/lib/firefox/firefox -contentproc -childID 5274 -isForBrowser
...

Building

$ cargo build --release

Cargo will put resulting binary under target/release/memoirctl

Usage

• Use memoirctl run to start collecting memory usage.
• You can also use memoirctl detach to start Memoir as a background process. detach will exit peacefully upon finding another instance of Memoir, while run will exit with an error code.
• Use memoirctl save some.csv to dump collected statistics into a file, and memoirctl stop to stop it.

See examples/ directory to see how memoir can be used with a build system or how to interpret its output.