A high level of data fragmentation has two negative consequences:
#Mysql optimizer script update
The DELETE or UPDATE commands do not delete data, but instead they mark it as deleted. Also, data is stored on physical media that can eventually wear out. Why Do You Need to Do Anything?Ī database works quickly due to a complex storage system that can degrade over time. This mostly just means running a few commands, but let’s address first things first.
#Mysql optimizer script code
Nextcloud strictly requires code comments to be preserved in opcode, which is the default.For the MySQL database to work quickly and without interruptions, it is necessary to perform maintenance jobs from time to time. If any cache size limit is reached by more than 90%, the admin panel will show a related warning. The default OPcache settings are usually sufficient for Nextcloud code to be fully cached. The OPcache improves the performance of PHP applications by caching precompiled bytecode. This link can help you calculate the good values for your system. More processes to run in parallel to handle the requests. So even on a small installation you should allow To the fact that each simultaneous request of an element is handled by a If you are using a default installation of PHP-FPM you might have noticedĮxcessive load times on the web interface or even sync issues.
#Mysql optimizer script how to
Refer to your web server manual for guides on how to enable HTTP/2. Most browsers already support HTTP/2 over TLS (HTTPS). HTTP/2 has huge speed improvements over HTTP with multiple request.
If your environment runs virtualized, check the virtualization vendor for If your processor supports AES-NI but it does not show up eg via grep orĬoreinfo, it is maybe disabled in the BIOS. You can check the openssl version via openssl version -a Will not show up in the openssl engine command. "AES New Instructions" to get a reduced result set.įor versions of openssl >= 1.0.1, AES-NI does not work via an engine and Intel Processor Feature Filter You may set a filter by on the Intel web if the processor used supports the extension Here are some examples how to check if your CPU / environment supports theįor each CPU core present: grep flags /proc/cpuinfo or as a summary forĪll cores: grep -m 1 '^flags' /proc/cpuinfo If the result contains any This requires a processor with the AES-NI instruction set. This can both speed up these operations while lowering TLS (HTTPS) and file encryption/decryption can be offloaded to a processor’sĪES-NI extension. See the sectionĬonfigure Nextcloud to use Redis-based Transactional File Locking. Places a significant load on your database. Using Redis-based transactional file locking įile locking is enabled by default, using the database locking backend. SQLite then it is possible to convert to MySQL or MariaDB using the steps providedįor more details and help tuning your database, check this article at MariaDB. If your installation is already running on See the section Database configuration for how toĬonfigure Nextcloud for MySQL or MariaDB. SQLite with highly concurrent applications, like Nextcloud. MySQL or MariaDB are preferred because of the performance limitations of Memory cache configuration for the Nextcloud server must be installed and configured. Caching Ĭaching improves performance by storing data, code, and other objects in memory. Reduce latency due to multiple abstraction layers. Better put it on a dedicated block device to If you run your database inside a VM, you should not You should make sure that you installed/assigned enough RAM.
Will help to identify the process or the drive that slows down your system. To reduce load you should first identify the source of the problem. High system load will slow down Nextcloud and might also lead to other unwanted See Background jobs for a description and the Server tuning Using cron to perform background jobs
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