megabyte vs kilobytes

-x--gb18030.sob7bee000 8---rwx--gb18030.sob7bf0000---R-xs-gconv-modules.cacheb7bf6000 1060---r-x--locale-archiveb7cff000 2048---r-x--locale-archiveb7eff000---r-x--libnss_files-2.3.4.sob7f08000 8---rwx--libnss_files-2.3.4.sob7f0a000 8---rwx--[anon]b7f20000 8---rwx--[anon]bff0d000--RW---[Stack]ffffe000 4--------[anon]-------- ------- ------- ------- -------Total KB 5680---[Email protected] security]# Name: pmap-report Memory Map of a process (to view a process's image information) Usage pmap

Name:Pmap-report memory Map of a process (view information about the image of the processes)UsagePmap [-X |-d] [-Q] PIDs ...Pmap-vOption meaning-X Extended Show the extended format. Show extended format-D device Show the device format. Display device format-Q quiet do not display some header/footer lines. Do not display kinsoku lines-V Show version displays version of program. Show versionExtended format and Device format fields:Address:start address of map image startKbytes:size of map in

" is called "Caching""The cache is the data being read from the disk and waiting to be used." The so-called 6th line Line 6th – Process information Note Pid Process ID PPID: Parent Process ID USER User name of the process owner UID: User ID of the process owner PR Priority level NI Nice value A negative value indicates a high priority,Positive values indicate low priorit

,nice value. A negative value indicates a high priority, and a positive value indicates a low priority; The total amount of virtual memory used by the virt process, in units Kb,virt=swap (in virtual memory used by the swap process, the size of the swapped out, in kilobytes) +res; The amount of physical memory that is used by the RES process, which is not swapped out, in units Kb,res=code (the physical memory size of the code executable, in

One, memory unit conversion byte byte meaning b is a computer storage of the basic unit (byte);1 English characters are 1 bytes, i.e. 1B;1 Chinese characters are 2 characters, i.e. 2B; 1024b=1kb 1024kb=1mb 1024mb=1gb 1024GB=1TB two, command DF Command syntaxDF [Options] [parameters] Command descriptionThe DF command displays the total capacity of the mounted disk, using capacity, remaining capacity, and so on, without any parameters, the default display unit is KB Command options-H: Use appro

rotate automatically, in kilobytes, MB, GB. Setting to 0 does not limit the log file size Logfile_backups: The number of rotation log backups, the default is 10, and if set to 0, do not back up Loglevel:error, warn, info, debug, Trace, blather, critical Pidfile:pid file path Umask:umask value, default 022 Nodaemon: If set to True, Supervisord starts in foreground instead of daemon Minfds:supervisord The minimum number of file descriptors availa

Debugging Truss Executable /* Trace doing of given command (useful debugging) * * Truss-f-P /* Using Multiple windows, this can is used to trace setuid/setgid programs * * [Back to top] ARP, Ethernet trouble shooting Arp-a. /* Shows the Ethernet address ARP table * * Arp-d Myhost /* Delete a stale Ethernet entry for host Myhost * * Disk Commands Du-k. /* Reports disk space used in kilobytes * * Du-sk. /* Reports only total disk spaces

swap area where the content already exists in memory.When the corresponding memory is swapped out again, it is no longer necessary to write to the swap area.)The details of each process are shown below the process information area statistics area. Let's start by understanding the meaning of the columns.Ordinal column name meaningPID Process IDPPID Parent Process IDRuser Real User NameUser ID of the UID process ownerUsername of user Process OwnerGroup Process Owner's nameThe terminal name of the

1. Process ManagementA process is a program or command being executed, each of which is a running entity that has its own address space and consumes a certain amount of system resources.The role of process management is to determine the health status of the server, view all processes in the system, and kill the process. It is generally possible to terminate a process with the correct command, only to force the kill process if the termination fails.(1) View all processes in the system① ps aux com

PPID parent Process ID C ruser Real user name D UID process owner User ID E the user process Owner's username F Group Process Owner's name is the terminal name of the G TTY startup process. Processes that are not started from the terminal are displayed as? H PR priority i NI nice value. Negative value indicates high priority, positive value indicates the last CPU used by low priority J P, only meaningful in multi-CPU environment K %CP

a process performed in the foreground, but not all processes are performed in the foreground, and many processes are hidden in the background. Use the command ps-e to display all processes. Process Performance Detection commands Top command: Linux uses the top command to show the CPU usage as the first few processes. The command can sort tasks by CPU usage, memory usage, execution time, and many of the features of the command can be set through interactive commands or in personal customizat

the meaning of the columns.ordinal column name meaning a PID process IDB PPID parent process IDC ruser Real user named UID process owner Users IDE User process Owner The group name of the F group Process owner, G TTY, initiates the terminal name of the process. Processes that are not started from the terminal are displayed as H PR priority I NI nice value. A negative value represents a high priority, and a positive value indicates the last CPU used by the low-priority J P, which only has meanin

zombie PID line: Process ID; Process owner; Process priority (PR); Nice value, negative indicates high priority, positive values represent low priority; VIRT, total amount of virtual memory used by the process, in kilobytes. Virt=swap+res;res, the size of the physical memory, in kilobytes, that the process uses and has not been swapped out. Res=code+data; FreeThe free command displays syst

displayed as?PR-PriorityThe Ninice value. Negative values indicate high priority, positive values indicate low priorityP last used CPU, only meaningful in multi-CPU environment%cpu percentage of CPU time that was last updated to currentThe total CPU time, in seconds, used by the duration processTotal CPU time used by the time+ process, Unit 1/100 secPercentage of physical memory used by the%MEM processThe total amount of virtual memory used by the VIRT process, in

that have changed priority within NI user process space98.6% ID Idle CPU percent0.3% wa wait for the input output CPU time percentage0.0% hi hardware interrupts% of CPU time0.0% Si software interrupts the percentage of CPU time consumed3.45th Behavior Memory information.4. Process informationPID Process IDPPID Parent Process IDRuser Real User NameUser ID of the UID process ownerUsername of user Process OwnerGroup Process Owner's nameThe terminal name of the TTY startup process. Processes that a

Configure the upload path and file limit size in the application.yml configuration file Spring: servlet: multipart: max-file-size:10kb Upload: file: location:d:\upload\ officially available configurable items: # MULTIPART (multipartproperties) Spring.servlet.multipart.enabled=true # Whether to enable support of multipart uploads. Spring.servlet.multipart.file-size-threshold=0 # threshold after which files are written to disk. Values can use the suffixes ' MB ' or

environmentK%cpu percentage of CPU time last updated to nowThe total amount of CPU time used by the L/O process, in secondsTotal CPU time used by the M time+ process, in units 1/100 secondsN%mem percent of physical memory used by the processo The total amount of virtual memory used by the virt process, in kilobytes. Virt=swap+resThe amount of virtual memory that the P swap process uses, the size of which is swapped out, the unit KB.The amount of phys

-active memory sizeActive indicates a memory sizeExample 2 showing memory detailsExample 3 viewing disk read/write2 Iostat needs to be installedIostat is an abbreviation for I/O statistics (input/output), and its main function is to monitor the system disk I/O operation, which mainly shows the statistics of disk read and write operations, and also gives the CPU usage.Syntax formatIostat [Options] [time interval [times]] parameter Options Explanatory notes

1 UseMaster2 Go3 Select * fromsys.dm_os_buffer_descriptors4 Go5 6 --View the amount of space the database occupies in the data cache7 --128 Bytes, 1/8 kilobytes (KB) because each data page corresponds to a row in dynamic management view (management VIEW,DMV)8 --1 byte (byte) = 8 bit (bit)9 --1000 kilobytes (KB) = 1024 bytes (byte)Ten --1 megabytes (MB) = 1.024 million

(zombie).Third line: CPU status· Percent of CPU occupied by US user space· SY kernel space% CPU occupied· NI has changed the priority of the process to occupy the percentage of CPU· ID Idle CPU percent· WA io waits a percentage of CPU usage· Hi Hard Interrupt (Hardware IRQ)% of CPU occupied· Si soft interrupt (software interrupts)% of CPU occupiedLine four: Memory status· Total Physical Memory· Total Free Memory· Used amount of memory in use· Buff/cache The amount of memory cachedLine five: Swa