wsstrace traces the working set size of arbitrary applications. Unlike
existing WSS-tracing tools, which trace a single PID, wsstrace traces an
entire application, following each of its forks.
wsstrace is only supported on Linux 4.3+ due its reliance on procfs,
ptrace, and the idle page tracking feature. Note that the idle page tracking
feature must be enabled in the kernel and additionally requires the
CAP_SYS_ADMIN capability in order to be used.
# Install
cargo install --path .
# Trace application
sudo wsstrace -- echo "hello"