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@IanHopkinson
IanHopkinson / lxml_examples.py
Created November 24, 2015 19:42
Examples of xpath queries using lxml in python
#!/usr/bin/env python
# encoding: utf-8
import lxml.etree
import lxml.html
import requests
xml_sample = """<?xml version="1.0" encoding="UTF-8"?>
<foo:Results xmlns:foo="http://www.foo.com" xmlns="http://www.bah.com">
<foo:Recordset setCount="2">
@valyala
valyala / README.md
Last active June 3, 2024 17:00
Optimizing postgresql table for more than 100K inserts per second

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:
@tashirka1
tashirka1 / django_log_settings.py
Created December 25, 2017 05:45 — forked from st4lk/django_log_settings.py
Django logging settings
# Logging settings for django projects, works with django 1.5+
# If DEBUG=True, all logs (including django logs) will be
# written to console and to debug_file.
# If DEBUG=False, logs with level INFO or higher will be
# saved to production_file.
# Logging usage:
# import logging
# logger = logging.getLogger(__name__)
# logger.info("Log this message")