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- LOADAVG User Commands LOADAVG
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- _________________________________________________________________
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- NNAAMMEE
- loadavg, uptime, la, evict - Interface to the migration load
- average and idle time database
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- SSYYNNOOPPSSIISS
- llooaaddaavvgg --ll
- llooaaddaavvgg --aa
- llooaaddaavvgg --ZZ _h_o_s_t ...
- llooaaddaavvgg --EE
- uuppttiimmee
- llaa
- eevviicctt
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- _________________________________________________________________
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- IINNTTRROODDUUCCTTIIOONN
- This command is used to provide user access to the migration
- load average and idle time database. It may be used to
- retrieve information about the local host or all hosts on
- the network, invalidate entries in the migration database,
- or evict foreign processes. The default for llooaaddaavvgg if
- invoked with no arguments is to list the load average of the
- local host. This is also true if the program is invoked as
- llaa or uuppttiimmee, which are synonyms to make llooaaddaavvgg somewhat
- compatible with UNIX. If the program is invoked as _e_v_i_c_t,
- the default is to evict foreign processes.
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- RREETTRRIIEEVVIINNGG IINNFFOORRMMAATTIIOONN
- --ll
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- --aa When invoked with the --ll flag, or with no arguments,
- llooaaddaavvgg will print a line containing information about
- the local host. The --aa flag is used to list information
- about all hosts. Each line contains the hostname;
- machine type; machine status; migration status; 1-
- minute, 5-minute, and 15-minute weighted load averages;
- and time since input was last received at the console,
- for idle hosts. Times are given in the form
- ``days+hours:minutes''. For hosts that are running,
- the machine status is listed as ``up'' followed by the
- time since they last rebooted. The migration status is
- ``inuse'' for hosts with one or more active local
- users, ``avail'' for hosts that are available for
- migration, ``hasmig''for hosts that are currently run-
- ning processes that are migrated from other hosts, and
- ``refuses'' for hosts that are idle but are refusing
- migration (perhaps because they are running an incompa-
- tible version of the kernel, or because they are file
- servers). In addition, for hosts that are currently
- available for migration from the host invoking llooaaddaavvgg,
- a ** is printed next to the hostname. After the migra-
- tion status, llooaaddaavvgg lists the weighted load averages
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- Sprite v.1.0 Printed: October 31, 1991 1
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- LOADAVG User Commands LOADAVG
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- and time since last input. Note: idle times of less
- than the threshold for permitting migration are not
- listed, and input from remote logins does not affect
- host idle time. Finally, the machine status is
- ``down'' for hosts that are not currently running, in
- which case the host is listed with the time since it
- was last running.
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- IINNVVAALLIIDDAATTIINNGG IINNFFOORRMMAATTIIOONN
- --ZZ _h_o_s_t ...
- To invalidate the entries for one or more hosts in the
- shared migration database, invoke llooaaddaavvgg with the --ZZ
- option, followed by the names of the hosts to invali-
- date. This may be used if a host is removed from the
- network, for example. Hosts that are not invalidated
- but are down indefinitely will appear in the list of
- hosts as being down.
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- EEVVIICCTTIIOONN
- --EE Running llooaaddaavvgg with the --EE option causes it to evict
- foreign processes as though the machine were no longer
- idle. If llooaaddaavvgg is invoked by the name _e_v_i_c_t, evic-
- tion is the default operation. Eviction is performed
- by invoking an ioctl on the pseudo-device corresponding
- to the host-specific mmiiggdd daemon.
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- SSEEEE AALLSSOO
- migd, mig, xload, migcmd
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- KKEEYYWWOORRDDSS
- eviction, foreign, idle time, load average, process migra-
- tion, uptime
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