Indeed, the vector might allocate more memory and there is unavoidably some overhead for the vector instance. This field is only present for memory-mapped files, and it’s usually blank for other types of memory regions. The naive answer is 1000010 bytes or slightly less than 1 MB, but if you think a bit about it, you quickly realize that 1000010 bytes might be a lower bound. If you fail to specify its path, bash's built-in time will run. You can view its documentation by running man time. Remember to use the binary /usr/bin/time, which has a -v option. (The resident set size is the portion of a process's memory that is held in RAM). filename: The name of the file or device associated with the memory region. time has a verbose mode which gives you the maximum and average resident set size.This field is only relevant for memory-mapped files. device and inode: The device number and inode number of the file or device associated with the memory region.h to make all report groups to be placed in one line, and -l. d to report I/O statistics, -r to report page faults and memory utilization, -u to report CPU utilization. watch is used to repeat the pidstat every 600 seconds in case the process subtree changes. offset: The offset of the memory region in the file or device that it’s associated with. Some observation: LCNUMERIC is set to make pidstat use dot as the decimal separator.rootsrv: free -m total used free shared buff/cache available Mem: 1981 720 319. The permissions are characterized by a string of characters that indicate whether the region is readable (r), writable (w), executable (x), or shared (s). You can use the command free to find the current memory usage in the server. permissions: The access permissions of the memory region.These addresses are in hexadecimal format and represent the virtual addresses of the first and last byte of the region. sysstat will collect background CPU usage data every minute, saving it to /var/log/sysstat/. You can generate a real-time report with the following command: sar -u 1 3. The mpstat command provides information about CPU performance and utilization by giving CPU statistics for the whole system and each available processor. ![]()
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