Bartosz: A venue and how best to market the event in Poland. Are you interested in helping us organize training in Warsaw?
Post: Testing Intel SSD 520
May 1, 2012 By 7 Comments
… of threads and with measurements every 1 sec to see how bad are drops. So there is more or less stable performance… MySQL workloads on these cards to understand it better. If you are interested more in SSD and MySQL questions – I will be… talk on Percona Live MySQL Conference 2012, if you did not attend my talk – you are welcome to join the webinar. Follow @VadimTk…
Comment: ext4 vs xfs on SSD
April 25, 2012 By 23 Comments
… it sounds like: “This is a free food, eat what you are given and do not complain”. Now about recommendations. So what… of bugs (how stable it is) is one of most important factors. We are in consulting business also, and customers are most interested in recommendation that they can use today, now in production deployment. How stable…
Post: New distribution of random generator for sysbench - Zipf
May 9, 2012 By 3 Comments
… one. This distribution has a parameter θ (theta), which defines how skewed the distribution is. A physical sense of this parameter… rows and run row lookup 1 million times. There are histograms on how many times each row selected for different θ: 0… tree https://code.launchpad.net/~vadim-tk/sysbench/zipf-distribution, you are welcome to try if it sounds interesting. I am going…
Comment: Moving Subtrees in Closure Table Hierarchies
May 2, 2012 By 7 Comments
… regions in a database using MySQL and I’m wondering how can I create a unordered list with indentation (for each… length column) but they are different for each and can be more or less in the future. How can reordered the receive… the tree traversal, it is easy to do so because you‘re “walking the path”. I’m using MySQL, PHP or…
Post: Testing Samsung SSD SATA 256GB 830 - not all SSD created equal
April 25, 2012 By 10 Comments
…=16384 –report-interval=10 run You may see I gather metrics every 10 sec to see how stable the performance is, and… throughput than Intel 320 (some results for Intel 320). If you are interested more in SSD and MySQL questions – I will be… talk on Percona Live MySQL Conference 2012, if you did not attend my talk – you are welcome to join the webinar. Follow @VadimTk…
Post: Announcement of Percona XtraDB Cluster 5.5.23
May 14, 2012 By 11 Comments
… are replicated to other nodes Improvements to XtraBackup SST methods, better error handling New SST wsrep_sst_method=skip, useful when you… provides binaries for Ubuntu 12.04, they are coming soon. If you want to know more how to migrate to XtraDB Cluster, we… testing release, but this is a software, so bugs are expected. If you encounter them, please report to our bug tracking system…
Post: Testing STEC SSD MACH16 200GB SLC
April 25, 2012 By 7 Comments
…=16384 –report-interval=10 run You may see I gather metrics every 10 sec to see how stable the performance is, and… running MySQL on RAID10 over 4 STEC MACH16 cards. If you are interested more in SSD and MySQL questions – I will be… talk on Percona Live MySQL Conference 2012, if you did not attend my talk – you are welcome to join the webinar. Disclaimer: This…
Comment: How to change innodb_log_file_size safely
May 2, 2012 By 14 Comments
…/mysqld.log file which i believe is the error log you are talking about? 120502 11:50:41 [Note] /usr/libexec/mysqld….sock’ port: 3306 Source distribution Also, I don’t see how MySQL could be using any other conf file other than…
Comment: Testing STEC SSD MACH16 200GB SLC
April 26, 2012 By 7 Comments
Vadim, can you please tell me, how long are the stalls observed in the write benchmark? I assume in … any capacitors to survive power outage like Intel 320? Thank you, Vojtech
