… write heavy workload. OK, so that was all about the configuration of the EC2 instance and MySQL. Now as far as the benchmark… of ~25k INSERTs Per Second, while with the table purchases_index, the avg. insert rate reduced to ~9k INSERTs Per Second. Let’s take… is pretty much constant remaining between ~25k to ~26k INSERTs Per Second. But on the other hand, with the table having secondary…
Post: Evaluating IO subsystem performance for MySQL Needs
March 5, 2008 By 23 Comments
… for MySQL is performance in random reads and random writes. Sequential reads and writes are…writes which show us how many cached writes per second we can do – this is important for log writes…threaded system evaluation benchmark There is also one trick running such larger scale benchmarks. SysBench…
Post: Aligning IO on a hard disk RAID – the Benchmarks
June 9, 2011 By 11 Comments
…, not different MySQL configurations, I didn’t try out different MySQL versions or settings. Moreover, I have been running these benchmarks for a… random read (and write) benchmark with 8 threads and total size of 256G. While the number of operations per second was slightly lower, the…
Post: Modeling MySQL Capacity by Measuring Resource Consumptions
March 8, 2011 By 1 Comment
… running 16 seconds per second. Of course no system scale perfectly, so you would unlikely be able to get 16 queries per second on such… benchmarked) system performance to provide our estimates. If we’re running Innodb with MySQL we can use Innodb_data_reads , Innodb_data_writes…
Post: MySQL performance on EC2/EBS versus RDS
August 4, 2011 By 10 Comments
…write an overview of these two approaches to hosting MySQL in the Amazon cloud. In general, MySQL… in operations per second or in throughput. If you require many operations per second, then it…MySQL is probably closer to stock MySQL than it is to Percona Server. I haven’t run extensive benchmarks…
Post: Virtualization and IO Modes = Extra Complexity
March 21, 2011 By 12 Comments
… there is no write cache I expect it to do no more than a bit over 100 writes per second as even in case… response times here as it times only writes not fsync() calls…. 22 fsync requests per second is pretty bad though I assume It…=60 run sysbench 0.4.10: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 1…
Post: MySQL-Memcached or NOSQL Tokyo Tyrant - part 1
October 15, 2009 By 16 Comments
… of hits in memcached, but the # of writes in MySQL coupled with the still large # of reads … benchmarks in Tokyo tyrant. All to often people force themselves into using a database like MySQL … Here you can see that our “transactions†per second for this app increased almost 10Xby using memcached…
Post: MySQL 5.5.8 - in search of stability
January 3, 2011 By 11 Comments
…346GB of RAM , and I ran the tpcc-mysql benchmark with 500W (about 50GB of data) on the… I will show different graphs: benchmark throughput – This is New Order Transactions per 10 seconds. dirty page – This …group = 2 innodb_read_io_threads = 16 innodb_write_io_threads = 16 innodb_purge_threads=1 …
Post: Performance gotcha of MySQL memory tables
February 1, 2008 By 5 Comments
… from the fact it is the only MySQL storage engine which defaults to HASH index …deletes per second while converting table to MyISAM I get about 600 deletes per second and about 4000 deletes per second for… was also disabled, meaning Innodb could delay writes and do all the changes directly in memory…
Post: Introducing tpce-like workload for MySQL
February 8, 2010 By 3 Comments
…been using tpcc-mysql benchmark for long time, and there many results published in… Storage Engines for MySQL. The workload in tpce is quite different from tpcc. Tpcc is write intensive, while…TradeResult) transactions, and the summary result in TpsE (transactions per seconds). Expect our results soon…
