Planet MySQL Planet MySQL: Meta Deutsch Español Français Italiano 日本語 Русский Português 中文
Showing entries 1 to 10 of 105 10 Older Entries

Displaying posts with tag: MySQL 5.7 (reset)

Performance of Inserts on Partitions – MySQL 5.6 v/s MySQL 5.7
+0 Vote Up -0Vote Down

Recently, I was discussing with one of my colleagues about how insert statement performs for MySQL partitioned tables. General prediction is that it should be slower than for non-partitioned tables, but how much that we didn’t know. So, I thought let’s test with different types of partitions (i.e range, list and hash) and also with different number of partitions and check how’s performance. As people says, MySQL 5.7 is must faster than old one, so I also tested partitions with it.

So, I took simple table with 3.2M records on Centos 6.7 VM (4 core with 2GB RAM) with default my.cnf settings and then created tables for range, list and hash partitioning …

  [Read more...]
Upcoming Webinar Wednesday July 20, 11 am PDT: Practical MySQL Performance Optimization
+0 Vote Up -0Vote Down

Are you looking to improve your MySQL performance? Application success is often limited by poor MySQL performance. Please join Percona CEO and Founder Peter Zaitsev for this exclusive webinar on Wednesday, July 20th, 2016 at 11:00 AM PDT (UTC – 7) as he presents “Practical MySQL Performance Optimization“.

Peter Zaitsev discusses how to get excellent MySQL performance …

  [Read more...]
Understanding Bulk Index Creation in InnoDB (and innodb_sort_buffer_size)
+0 Vote Up -0Vote Down

In a previous post, I presented an Unexpected Memory Consumption for Bulk Index Creation in InnoDB.  This was triggered by an increased innodb_sort_buffer_size and as stated in another post: "the sorting algorithm does not scale well with large sort buffers".  In this post, I will present why it does not scale well and I will suggest solutions.

This post also answers feedback request for the

Severe performance regression in MySQL 5.7 crash recovery
+0 Vote Up -0Vote Down

In this post, we’ll discuss some insight I’ve gained regarding severe performance regression in MySQL 5.7 crash recovery.

Working on different InnoDB log file sizes in my previous post:

What is a big innodb_log_file_size?

I tried to understand how we can make InnoDB crash recovery faster, but found a rather surprising 5.7 crash recovery regression.

Basically, crash recovery in MySQL 5.7 is two times slower, due to this issue:  …

  [Read more...]
MySQL 5.7 By Default 1/3rd Slower Than 5.6 When Using Binary Logs
+0 Vote Up -0Vote Down

Researching a performance issue, we came to a startling discovery:

MySQL 5.7 + binlogs is by default 37-45% slower than MySQL 5.6 + binlogs when otherwise using the default MySQL settings

Test server MySQL versions used:
i7, 8 threads, SSD, Centos 7.2.1511
mysql-5.6.30-linux-glibc2.5-x86_64
mysql-5.7.12-linux-glibc2.5-x86_64

mysqld –options:

--no-defaults --log-bin=mysql-bin --server-id=2

Run details:
Sysbench version 0.5, 4 threads, socket file connection

Sysbench Prepare: 






  [Read more...]
Percona XtraBackup 2.4.3 is now available
+0 Vote Up -0Vote Down


Percona
is glad to announce the GA release of Percona XtraBackup 2.4.3 on May 23rd, 2016. Downloads are available from our download site and from apt and yum repositories.


  [Read more...]
Major post-GA features in the 5.7 release!
+0 Vote Up -0Vote Down

Interesting developments in the MySQL world – it can now be used as a document store and you can query the database using JavaScript instead of SQL (via the MySQL Shell). There is also a new X Plugin (see: mysql-5.7.12/rapid/) (which now makes use of protocol buffers (see: mysql-5.7.12/extra/protobuf/)). I will agree, this is …

  [Read more...]
MySQL Parallel Replication and more Booking.com talks at Percona Live (April 2016)
+0 Vote Up -0Vote Down

In a few days, I will be flying to San Francisco and then making my way to Santa Clara to attend the Percona Live Conference.  On the last day of the conference (Thursday), I will speak about MySQL Parallel Replication.  I hope to see you there and I will he happy to answer questions you might have (on this subject and others):

Thursday at 12:50 pm: MySQL Parallel Replication: inventory,

Percona Server 5.7 performance improvements
+0 Vote Up -0Vote Down

In this blog post, we’ll be discussing Percona Server 5.7 performance improvements.

Starting from the Percona Server 5.6 release, we’ve introduced several significant changes that help address performance problems for highly-concurrent I/O-bound workloads. Some of our research and improvements were re-implemented for MySQL 5.7 – one of the best MySQL releases. But even though MySQL 5.7 showed progress in various aspects of scalability and performance, we’ve found that it’s …

  [Read more...]
Percona Server 5.7.11-4 is now available
+2 Vote Up -0Vote Down

Percona is glad to announce the GA release of Percona Server 5.7.11-4 on March 15, 2016. Download the latest version from the Percona web site or from the Percona Software Repositories.

Based on …

  [Read more...]
Showing entries 1 to 10 of 105 10 Older Entries

Planet MySQL © 1995, 2016, Oracle Corporation and/or its affiliates   Legal Policies | Your Privacy Rights | Terms of Use

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.