June 18, 2013

Comment: Benchmarks of new innodb_flush_neighbor_pages

… check out the improvements in mysql 5.6 http://dev.mysql.com/tech-resources/articles/whats-new-in-mysql-5.6.html These… they made an SSD as fast as Ram or if one was to raid 10 a bunch of SSD‘s then we could put the Innodb straight to SSD and not even…

Post: Virident tachIOn: New player on Flash PCI-E cards market

…%. As you may know (check my presentation) SSD design requires background “garbage collector” activity, which …: if a single module fails, the internal RAID will allow to continue operations, and after …(important in question for log related activity in MySQL) I am looking forward to present results …

Post: FlashCache: more benchmarks

… – it’s XFS alignment by RAID strip size, XFS aligned file allocation, raid partition should be created aligned … of data. I allocated 35GB for cache on SSD and I used 16GB and 10GB buffer pool sizes…encourage you to test yourself (my full scripts and mysql config files are on Wiki page). There are …

Comment: Linux schedulers in tpcc like benchmark

…cheaper controler, and perhaps with a more write costly RAID discipline (ie. RAID 5). A setup with storage accessible through multiple … results may be even more favouring noop if you used SSD drives. I mean, chances are that those results are …the controler do impact some I/O bound loads with MySQL

Comment: What to tune in MySQL Server after installation

… RAM 4x 80 GB SSD MLC CentOS 5 x 64 bits RAID-5 HW In this server is installing MySql 5.5.21….log init_connect=SET CHARACTER SET utf8 datadir=/data/mysql socket=/data/mysql/mysql.sock [General] skip-name-resolve #skip-bdb default-time…/mysql/mysql.sock [Server] server-id = 1 log-bin=/data/mysql/drbd expire_logs_days = 5 max_binlog_size = 100M [client] socket=/data/mysql/mysql

Comment: Finding your MySQL High-Availability solution – The questions

… talk about putting SSD on the local servers. There are three types of failures: * mysql becomes unavailable (best case) * mysql connection are unresponsive… panics weekly. * hardware failure – typically losing a disk. Usually the RAID controller does the right thing though when hard drives don…

Comment: Intel 520 SSD in MySQL sysbench oltp benchmark

…from official website, neither this server, nor this raid controller support SATA-III (6-gbit one). 380…II. No wonder – according to published benchmarks this SSD drive should do 520-550 mb/s (without… in terms of performance too – both overall and mysql-specific). I think newer LSI cards (2108-based)…

Comment: Percona Server vs MySQL on Intel 320 SSD

Wlad These SSD reviews of yours are just superb. My favourite on the MySQL Performace blog! You can also do a review on the best available hardware raid-sets and give your advise.

Comment: Clustrix benchmarks under tpcc-mysql workload

Andy, on high concurrency in MySQL what really comes into play is internal locking, and under-… did not look what is bottleneck with 7 Intel 320 SSD drives, as main focus there was on Clustrix systems. However… worth to mention that it was software RAID0, not hardware RAID.

Post: Looking on 5.4 - IO bound benchmarks

…our Dell PowerEdge R900 box (16 cores, 32GB of RAM, RAID 10 on 8 SAS 2.5″ 15K RPM disks). …being update with my next CPU benchmarks, and benchmark on SSD & FusionIO), also I post graph there: Results are in …per minute, more is better). So I can confirm that MySQL team did great job with 5.4 and it …