从压测 actix v2/v3 (Rust) 和 Http4k, Ktor(Kotlin) 微服务上所学到的

1. 作者想用接近生产级别的代码进行对比, 这些代码包括了合理的错误处理, HTTP状态码, JSON序列化, 参数处理等.
2. 除了 req/s和延迟指标,作者想要更多的维度指标的对比.例如 CPU, 内存 等等.
3. 使用正式环境压测,例如在 k8s中, 内存和 CPU 都是有限制的.
4. 自己的存储, 例如例子中使用自己的 Elasticsearch.

Actix-web 3.0 正式发布

Bunt,一个简便易用的命令行颜色库

// Style tags will color/format text between the tags.
bunt::println!("I really like {$yellow}lemons{/$}! Like, {$blue+italic}a lot{/$}.");

// To style a single argument, you can also use the `{[style]...}` syntax. This
// can be combined with style tags.
let v = vec![1, 2, 3];
bunt::println!("Here is some data: {[green]:?}. {$bold}Length: {[cyan]}{/$}", v, v.len());

移植 PineTime Watch Face(C to Rust)

1. Function Declaration
2. Variable Declaration
3. Null Pointers
4. Import C Functions into Rust
5. Numeric Types
6. Pass Strings from Rust to C
7. Pointer Dereferencing
8. Return Value
9. C to Rust Conversion: First Version

27. What's Next
28. References

lv_obj_t *screen_time_create(home_time_widget_t *ht) {
// Create a label for time (00:00)
lv_obj_t *scr = lv_obj_create(NULL, NULL);
lv_obj_t *label1 = lv_label_create(scr, NULL);

   lv_label_set_text(label1, "00:00");
   lv_obj_set_width(label1, 240);
   lv_obj_set_height(label1, 200);
   ht->lv_time = label1;
   ...
return scr;
}

fn create_widgets(widgets: &mut WatchFaceWidgets) ->LvglResult<()> {
// Create a label for time (00:00)
let scr = widgets.screen;
let label1 = label::create(scr, ptr::null()) ? ;

   label::set_text(label1, strn!("00:00")) ? ;
   obj::set_width(label1, 240) ? ;
   obj::set_height(label1, 200) ? ;
   widgets.time_label = label1;
   ...
Ok(())
}

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