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- SYSSTAT User Commands SYSSTAT
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- NNAAMMEE
- sysstat - print statistics and information about the state
- of the system
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- SSYYNNOOPPSSIISS
- ssyyssssttaatt [--vvccRR]
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- OOPPTTIIOONNSS
- --vv Print out the compilation version timestamp
- for the kernel. This is the default if no
- options are specified.
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- --cc Print out the number of times each system call
- has been invoked.
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- --pp _n Enable or disable system call timing.
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- --tt For each system call, print the number of
- calls and how much time was required.
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- --RR Reset the count and time information for sys-
- tem calls.
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- _________________________________________________________________
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- DDEESSCCRRIIPPTTIIOONN
- This command prints out statistics and other information
- about the system.
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- VVEERRSSIIOONN TTIIMMEESSTTAAMMPP
- --vv By default, ssyyssssttaatt prints the compilation version
- timestamp for the kernel. This is a unique identifier
- indicating who compiled the kernel and when. This
- information is printed if no options are specified, or
- if the -_v option is specified.
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- SSYYSSTTEEMM CCAALLLL SSTTAATTIISSTTIICCSS
- --cc This option indicates that ssyyssssttaatt should display a
- count of the number of times each system call has been
- invoked. For each call, the number of invocations is
- printed along with an indication of whether the call,
- if done by a migrated process, would be handled locally
- or would require action by the process's _h_o_m_e _n_o_d_e.
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- --tt This option tells ssyyssssttaatt to display for each system
- call the number of times the call was invoked, the
- total time spent in that call, and the average time
- spent in that call. Note that if a process is
- migrated, its system calls are recorded by the host
- that it is executing on, rather than by the home node.
- Normally system call timing is turned off; use the --pp
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- Sprite v.1.0 Printed: December 7, 1992 1
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- SYSSTAT User Commands SYSSTAT
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- option to turn it on.
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- --RR This option causes ssyyssssttaatt reset the kernel's count of
- the number of times each system call has been invoked,
- as well as the accumulated time for each system call.
- Thus, subsequent invocations of ssyyssssttaatt with the --cc or
- --tt option will report only activity since the invoca-
- tion with the --RR option.
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- --pp This option controls whether Sprite keeps track of how
- much time each system call takes. To turn on system
- call timing, use --pp 11; to turn it off, use --pp 00.
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- BBUUGGSS
- System call timing is only available on ds5000s.
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- SSEEEE AALLSSOO
- migcmd, fscmd
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- KKEEYYWWOORRDDSS
- statistics, process migration, system call
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- Sprite v.1.0 Printed: December 7, 1992 2
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