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![InnoDB Buffer Pool Resizing: Chunk Change](https://cdn-ak-scissors.b.st-hatena.com/image/square/da67f70fb49b771c653be9af971dd43613431e09/height=288;version=1;width=512/https%3A%2F%2Fwww.percona.com%2Fblog%2Fwp-content%2Fuploads%2F2018%2F06%2Fbuffer-pool-chunk-size.jpg)
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
Recently I looked at table_cache sizing which showed larger table cache does not always provides the best performance. So I decided to look at yet another similar variable – innodb_open_files which defines how many files Innodb will keep open while working in innodb_file_per_table mode. Unlike MyISAM Innodb does not have to keep open file descriptor when table is open – open table is purely logica
The new Mydumper 0.9.1 version, which includes many new features and bug fixes, is now available. You can download the code from here. A significant change included in this version now enables Mydumper to handle all schema objects!! So there is no longer a dependency on using mysqldump to ensure complex schemas are backed up alongside the data. Let’s review some of the new features: Full schema
In my previous post Amazon Aurora – Looking Deeper, I promised benchmark results on Amazon Aurora. Amazon used quite a small dataset in their benchmark: 250 tables, with 25000 rows each, which in my calculation corresponds to 4.5GB worth of data. For this datasize, Amazon used r3.8xlarge instances, which provided 32 virtual CPUs and 244GB of memory. So I can’t say their benchmark is particularly i
The other day a customer asked me to do capacity planning for their web server farm. I was looking at the CPU graph for one of the web servers that had Hyper-threading switched ON and thought to myself: “This must be quite a misleading graph – it shows 30% CPU usage. It can’t really be that this server can handle 3 times more work?” Or can it? I decided to do what we usually do in such case – I de
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
All of Percona’s open source software products, in one place, to download as much or as little as you need.
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