atoprc (5)

This manual page documents the rcfile of the atop and atopsar commands. These commands can be used to monitor the system and process load on a Linux system.

The atoprc file contains the default settings. These settings are read during startup, first from the system-wide rcfile /etc/atoprc and after that from the user-specific rcfile ~/.atoprc (so system-wide settings can be overruled by an individual user). The options in both rcfiles are identical.

The rcfile contains keyword-value pairs, one on every line (blank lines and lines starting with a #-sign are ignored).

The following keywords can be specified:

flags

A list of default flags for atop can be defined here. The flags which are allowed are 'g', 'm', 'd', 'n', 'u', 'p', 's', 'c', 'v', 'C', 'M', 'D', 'N', 'A', 'a', 'f', '1' and 'x'.

interval

The default interval value in seconds.

linelen

The length of a screen line when sending output to a file or pipe (default 80).

username

The default regular expression for the users for which active processes will be shown.

procname

The default regular expression for the process names to be shown.

maxlinecpu

The maximum number of active CPU's that will be shown.

maxlinelvm

The maximum number of active logical volumes that will be shown.

maxlinemdd

The maximum number of active multiple devices that will be shown.

maxlinedisk

The maximum number of active disks that will be shown.

maxlineintf

The maximum number of active network interfaces that will be shown.

cpucritperc

The busy percentage considered critical for a processor (see section COLORS in the man-page of the atop command). This percentage is used to determine a weighted percentage for line coloring and sorting of active processes. When this value is zero, no line coloring or automatic sorting is performed for this resource.

dskcritperc

The busy percentage considered critical for a disk (see section COLORS in the man-page of the atop command). This percentage is used to determine a weighted percentage for line coloring and sorting of active processes. When this value is zero, no line coloring or automatic sorting is performed for this resource.

netcritperc

The busy percentage considered critical for a network interface (see section COLORS in the man-page of the atop command). This percentage is used to determine a weighted percentage for line coloring and sorting of active processes. When this value is zero, no line coloring or automatic sorting is performed for this resource.

memcritperc

The percentage considered critical for memory utilization (see section COLORS in the man-page of the atop command). This percentage is used to determine a weighted percentage for line coloring and sorting of active processes. When this value is zero, no line coloring or automatic sorting is performed for this resource.

swpcritperc

The occupation percentage considered critical for swap space (see section COLORS in the man-page of the atop command). This percentage is used to determine a weighted percentage for line coloring and sorting of active processes. When this value is zero, no line coloring or automatic sorting is performed for this resource.

swoutcritsec

The number of pages swapped out per second considered critical for for memory utilization (see section COLORS in the man-page of the atop command). This threshold is used in combination with 'memcritperc' to determine a weighted percentage for line coloring and sorting of active processes. When this value is zero, no line coloring or automatic sorting is performed for this resource.

almostcrit

A percentage of the critical percentage to determine if the resource is almost critical (see section COLORS in the man-page of the atop command). When this value is zero, no line coloring for `almost critical' is performed.

atopsarflags

A list of default flags for atopsar can be defined here. The flags that are allowed are 'S', 'x', 'C', 'M', 'H', 'a', 'A' and the flags to select one or more specific reports.

An example of the /etc/atoprc or ~/.atoprc file:

flags         Aaf

interval      5

username

procname

maxlinecpu    4

maxlinedisk   10

maxlineintf   5

cpucritperc   80

almostcrit    90

atopsarflags  CMH

ownprocline   PID:50 VGROW:40 RGROW:45 COMMAND-LINE:50

ownpagline    PAGSCAN:3 BLANKBOX:0 PAGSWIN:3 PAGSWOUT:7

The keywords 'ownprocline' and 'ownpagline' are explained in the subsequent section.

Via the rcfile it is possible to define the layout of the output lines yourself, i.e. you can define the layout of one line with process information with the keyword 'ownprocline' (to be selected with the key 'o' or the flag -o) and you can redefine all lines with system information.

The layout of an output-line can be defined as follows (notice that this should be specified as one line in the rcfile):

   keyword   <columnid>:<prio> [<columnid>:<prio> ...]

The columnid is the symbolic name of a column that should shown at this position in the output line.

The prio is a positive integer value that determines which columns have precedence whenever not all specified columns fit into the current screen-width. The higher value, the higher priority.

The column-specifications should be separated by a space. The order in which columns have been specified is the order in which they will be shown, with respect to their priority (columns that do not fit, will be dropped dynamically).

A special columnid for system lines is 'BLANKBOX'. This indicates that an empty column is required at this position. Also this special columnid is followed by a priority (usually low).

The following definition can be specified for process information:

ownprocline

The columnid's are the names of the columns that are shown in the normal output of the process-related lines that are shown by atop such as 'PID', 'CMD', 'S', .... The only exception is the special columnid 'SORTITEM' that is used to show one of the columns CPU%/DSK%/MEM%/NET%, depending on the chosen sort-criterium.

An example of a user-defined process line:

ownprocline   PID:20 PPID:10 SYSCPU:15 USRCPU:15 VGROW:14 VSIZE:12 RGROW:14 RSIZE:12 ST:8 EXC:7 S:11 SORTITEM:18 CMD:20

The following definitions are used internally by atop as the default system lines (you can redefine each of them in the rcfile as one line):

ownsysprcline

Redefinition of line labeled with 'PRC':

ownsysprcline   PRCSYS:8 PRCUSER:8 BLANKBOX:0 PRCNPROC:7 PRCNZOMBIE:5 PRCCLONES:4 BLANKBOX:0 PRCNNEXIT:6

ownallcpuline

Redefinition of line labeled with 'CPU' for total CPU-utilization:

ownallcpuline   CPUSYS:8 CPUUSER:7 CPUIRQ:4 BLANKBOX:0 CPUIDLE:5 CPUWAIT:6 BLANKBOX:0 CPUSTEAL:1 CPUGUEST:3

ownonecpuline

Redefinition of line labeled with 'CPU' for utilization of one CPU:

ownonecpuline   CPUISYS:8 CPUIUSER:7 CPUIIRQ:4 BLANKBOX:0 CPUIIDLE:5 CPUIWAIT:6 BLANKBOX:0 CPUISTEAL:1 CPUIGUEST:3

owncplline

Redefinition of line labeled with 'CPL':

owncplline   CPLAVG1:4 CPLAVG5:3 CPLAVG15:2 BLANKBOX:0 CPLCSW:6 CPLINTR:5 BLANKBOX:0 CPLNUMCPU:1

ownmemline

Redefinition of line labeled with 'MEM':

ownmemline   MEMTOT:2 MEMFREE:5 MEMCACHE:3 MEMDIRTY:1 MEMBUFFER:3 MEMSLAB:3 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0

ownswpline

Redefinition of line labeled with 'SWP':

ownswpline   SWPTOT:3 SWPFREE:4 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0 SWPCOMMITTED:5 SWPCOMMITLIM:6

ownpagline

Redefinition of line labeled with 'PAG':

ownpagline   PAGSCAN:3 PAGSTALL:1 BLANKBOX:0 PAGSWIN:4 PAGSWOUT:3

owndskline

Redefinition of lines labeled with 'LVM', 'MDD' and 'DSK':

owndskline   DSKNAME:8 DSKBUSY:7 DSKNREAD:6 DSKNWRITE:6 DSKKBPERRD:4 DSKKBPERWR:4 DSKMBPERSECRD:5 DSKMBPERSECWR:5 DSKAVQUEUE:1 DSKAVIO:5

ownnettrline

Redefinition of line labeled with 'NET' for transport:

ownnettrline   NETTRANSPORT:9 NETTCPI:8 NETTCPO:8 NETUDPI:8 NETUDPO:8 NETTCPACTOPEN:6 NETTCPPASVOPEN:5 NETTCPRETRANS:4 NETTCPINERR:3 NETTCPORESET:20 NETUDPNOPORT:1 NETUDPINERR:3

ownnetnetline

Redefinition of line labeled with 'NET' for network:

ownnetnetline   NETNETWORK:5 NETIPI:4 NETIPO:4 NETIPFRW:4 NETIPDELIV:4 BLANKBOX:0 BLANKBOX:0 BLANKBOX:0 NETICMPIN:1 NETICMPOUT:1

ownnetifline

Redefinition of line labeled with 'NET' for interfaces:

ownnetifline   NETNAME:8 NETPCKI:7 NETPCKO:7 NETSPEEDIN:6 NETSPEEDOUT:6 NETCOLLIS:3 NETMULTICASTIN:2 NETRCVERR:5 NETSNDERR:5 NETRCVDROP:4 NETSNDDROP:4

The lines above are shown in the order as shown by atop in combination with the -f flag (in a very wide window you should be able to see all of the columns).

atop(1), atopsar(1), logrotate(8)

http://www.atoptool.nl

Gerlof Langeveld ([email protected])

JC van Winkel ([email protected])