Below are a few links to popular services for testing sites.Continue reading “List of online services for testing a site”
Document Name: Configuring and tuning HPE ProLiant Servers for low-latency applications
Edition: 10 (October 2017)
File size: 0.5 MB
I will give an example of changing join_buffer_size in MySQL.
join_buffer_size determines the size of the buffer for index scanning and joins without indexes. I recommend adding indexes or slightly increasing join_buffer_size (but in this case a full table scan will be performed).
Enabling slow_query_log and log_queries_not_using_indexes will help to identify slow queries and queries without indexes that affect the performance of the MySQL server.Continue reading “How to enable Slow Query Log in MySQL”
Ubuntu / Debian installation command:Continue reading “Optimize web images with jpegoptim”
Installation on Ubuntu / Debian:Continue reading “Console speedtest”
In this article I will give an example of optimizing the parameters of nf_conntrack for a high-loaded NAT server.Continue reading “Tuning nf_conntrack”
DiskSpd is a utility for generating a load on a disk system and measuring its performance.Continue reading “DiskSpd. Windows IOPS Test”
InnoDB log file size – the size of the transaction log files that are needed to cancel transactions and restore the database in case of failure.Continue reading “Changing InnoDB log file size in MySQL”
In this article, I will describe the Cisco Catalyst 6500 online diagnostic commands.Continue reading “Online diagnostics Cisco Catalyst 6500”