You can also set a small script in crontab to clear cache memory every day as shown below.
Daylite 6 clearing cache how to#
If you want to clear your disk cache then you need to run echo 1 > /proc/sys/vm/drop_caches after running sync command as shown ~]# sync echo 1 > /proc/sys/vm/drop_caches Example 2: How to Clear Page Cache Every day through crontab
Daylite 6 clearing cache free#
~]# free -m total used free shared buff/cache availableĪlso Read: 10 Useful swapon command examples in Linux (RedHat/CentOS 7/8) Example 1: How to Clear Page Cache Only As you can see from below output, 137 MB is the current buffer/Cache memory. Using this command, you can check the total memory, used memory, cache or buffer memory, available memory etc as can be observed from below output. You might be aware of free command in Linux command line to check the current memory usage of the System. Page Cache also needs to be in sync with the disk files as new changes in the file should be synced with Cached data or it will marked as dirty and eventually will be removed from the Page Cache. The only criteria is that Cache should be enough memory available. This increases the performance of Input Output Read Operations. If the requested page is not available in the Cache then the page will be added to the disk and will be available as long as it is needed. System will usually add a page based on User read process request. Page cache is the main Linux disk Cache used in Linux.
This Cache is generally called as Page Cache in Linux. What is CacheĬache are usually a small reserve amount of memory used generally for faster access of disk files and directories. The only downside is that clearing Cache memory will slow down your systems atleast until the cache re-build takes place. This is required because once the cache memory is cleared then System has to access the files from Disk and hence you will get the updated data. Someday if you ran into a problem where you find that updated data is not visible or accessible from Page Cache then you might need to clear cache memory once and check if it helps. As you might be aware Linux has very robust Memory Management System but still if you need to clear cache memory due to certain reasons then you need to do it manually. In this article, I will take you through different steps to drop/flush/clear cache memory in Linux.
0 kommentar(er)
