Ben-PH

Useful Spacemacs commands

• SPC q q - quit
• SPC w / - split window vertically
• SPC w - - split window horizontally
• SPC 1 - switch to window 1
• SPC 2 - switch to window 2
• SPC w c - delete current window
• SPC TAB - switch to previous buffer
• SPC b b - switch buffers

Ben-PH

    int wait_size = 5;  // maximum number of waiting clients
    if (listen(listen_sock, wait_size) < 0) {
        printf("could not open socket for listening\n");
        return 1;
    }

Ben-PH

Abstract

For some situations, understanding system calls made during processes start-up and shut-down can be valuable. For example, consider a shell-scripts long-running hot loop that runs a very short-running process. Thus it is perhaps reasonable to hypothesise that a difference in system calls during process start-up/shut-down has a non-negligable impact on the run time of said hot-loop.

This write-up looks at how C and Rust programs differ in terms of system-calls for start-up/shutdown. It is not intended as a performance analysis and only looks at one target system.

At the end, we take a quick look at using statically linked libraries by building with # cargo build --target x86_64-unknown-linux-musl --release and removing even more syscalls by removing the main function

System

Ben-PH

use seed::{prelude::*, *};
use serde::{Deserialize, Serialize};

fn init(_: Url, orders: &mut impl Orders<Message>) -> Model {
    log!("I N I T I A L I Z E");
    // orders.subscribe(Message::UrlChanged);
    // orders.send_msg(Message::GoToUrl(Url::new().set_path(&["login"])));
    Model::default()
}