Welcome to Part 2 of the “optimise your ROS snap” blog series. Make sure to check Part 1 before reading this blog post. This second part is going to present... Optimise your ROS snap – Part 1 Do you want to optimise the performance of your ROS snap? We reduced the size of the...
meaning that when you execute the program, it runs as though the file owner is the user instead of you. Many programs use this setuid bit to run as root in order to get the privileges they need to change system files. One example is the passwd...
We’ll now look at memory in much more detail. 现在我们将更详细地讨论内存。 8.9 Memory(内存) One of the simplest ways to check your system’s memory status as a whole is to run the free command or view /proc/meminfo to see how much real memory is being used for caches and buffers...
iomem is an xl config file option that can be used to map memory into a domU. Typically, it is used to map device memory into a domU as part of device assignment. However, it can also be used to set up a cacheable shared memory region between dom0 and a domU. This section explain...
How to determine which process uses the shared memory regions created by the "memfd" feature of the Linux kernel from VMcore? Unable to account for the shared memory usage and the process using the shared memory region from VMcore. Raw ...
Linux and Unix are very popular with programmers, not just due to the overwhelming array of tools and environments available but also because the system is exceptionally well documented and transparent. On a Linux machine, you don’t have to be a programmer to take advantage of development tools...
If you need to do this sort of thing regularly (and especially if you plan to automate the process), use a dedicated synchronizer system. On Linux, rsync is the standard synchronizer, offering good performance and many useful ways to perform transfers. We’ll cover some of the essential rsyn...
4. Checking/procFilesystem for Memory Leak Data The/procfilesystem in Linux provides detailed information about running processes.Linux maps all the running processes to the filesystem, which we can access through the/procdirectory. We can access memory-related data for any running process directly...
Then, check SSH using the new keys, and you ought to be in business. Step 2- Create Script to Sync Files and Restart a Service Now you have to create a new directory known as scripts to0 sync files in linux servers. Then make a new script file-haproxySync.sh. In case your stateme...
PRTG SSH sensor monitors the free physical memory. But that isn't really a very meaningful number with the way Linux handles memory. The buffers and cache usage can be more or less ignored, as they will be immediately discarded if any processes need to allocate the memory used by them. Th...