divi255

---
- hosts:
    - all
  remote_user: root
  tasks:
    - name: update everything
      apt: upgrade=dist force_apt_get=yes autoclean=yes
    - name: check if a reboot is necessary
      register: reboot_required_file
      stat: path=/var/run/reboot-required get_md5=no

divi255

Optimizing postgresql table for more than 100K inserts per second

• Create UNLOGGED table. This reduces the amount of data written to persistent storage by up to 2x.
• Set WITH (autovacuum_enabled=false) on the table. This saves CPU time and IO bandwidth on useless vacuuming of the table (since we never DELETE or UPDATE the table).
• Insert rows with COPY FROM STDIN. This is the fastest possible approach to insert rows into table.
• Minimize the number of indexes in the table, since they slow down inserts. Usually an index on time timestamp with time zone is enough.
• Add synchronous_commit = off to postgresql.conf.
• Use table inheritance for fast removal of old data:

divi255

#!/usr/bin/env python3

import sys
import tempfile
import os
import sphinx.ext.autodoc
from textwrap import dedent
from types import SimpleNamespace

_d = SimpleNamespace(result='')

divi255

import logging

def rust_emit_log(*args):
    # Override from Rust with pyfunction
    pass

class RustLogHandler(logging.Handler):

    def emit(self, record):
        msg = f'{record.name}: {record.getMessage()}'

divi255

/*
shared lib with safe calls, for std

put in Cargo.toml
[lib]
name = "test"
crate-type = [ "cdylib" ]
*/
use std::cell::RefCell;

divi255

/* build with
    gcc -c -Wall -Werror -fpic -O3 driver.c
    gcc -shared -o libmydriver.so -O3 driver.o
    */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct Data {
  char port[20];

divi255

use rand::{thread_rng, Rng};
use std::fmt;

struct MineField {
    field: Vec<u16>,
    x: usize,
    y: usize,
}

impl MineField {

divi255

#[macro_use]
extern crate bma_benchmark;

use hyper::{client::connect::HttpConnector, Body, Client, Method, Request, StatusCode};

#[tokio::main]
async fn main() {
    let iters = 1_000_000;
    //let iters = 10;
    let workers = 4;

divi255

/* [dependencies]
tokio = { version = "1.15.0", features = ["full"] }
bma-benchmark = "0.0.18"
async-nats = "0.10.1"
elbus = { version = "", features = ["full"] }
*/

#[macro_use]
extern crate bma_benchmark;

divi255

--- drivers/platform/x86/thinkpad_acpi.c.bak    2021-06-28 00:21:11.000000000 +0200
+++ drivers/platform/x86/thinkpad_acpi.c        2022-05-18 04:07:06.814390699 +0200
@@ -8883,31 +8883,22 @@
        quirks = tpacpi_check_quirks(fan_quirk_table,
                                     ARRAY_SIZE(fan_quirk_table));

-       if (gfan_handle) {
-               /* 570, 600e/x, 770e, 770x */
-               fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
-       } else {