04-14-2002
SCO CPU Loads
I've been asked to get a breakdown of what is consuming CPU time on our server over an extended period ?
Have been asked about the CPU load on our server and I need to be able to go back to my boss and indicate what % is consumed by what process (or group of processes). I.e. 15% is database activity, 45% is CGI/web pages, 10% is SMTP, 10% is Operational, etc, etc, etc.
Any help really appreciated. System details :
System = SCO_SV
Node = ####
Release = 3.2v5.0.5
KernelID = 98/07/02
Machine = i80386
BusType = ISA
Serial = #########
Users = 5-user
OEM# = 0
Origin# = 1
NumCPU = 4
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clock(3C) clock(3C)
NAME
clock() - report CPU time used
SYNOPSIS
DESCRIPTION
returns the amount of CPU time (in microseconds) used since the first call to The time reported is the sum of the user and system times of
the calling process and its terminated child processes for which it has executed , or (see wait(2) , system(3S), and popen(3S)). To deter-
mine the time in seconds, the value returned by should be divided by the value of the macro
The resolution of the clock varies, depending on the hardware and on software configuration.
If the processor time used is not available or its value cannot be represented, the function returns the value
WARNINGS
The value returned by is defined in microseconds for compatibility with systems that have CPU clocks with much higher resolution. Because
of this, the value returned wraps around after accumulating only 4295 seconds of CPU time (about 72 minutes).
DEPENDENCIES
The default clock resolution is 10 milliseconds.
SEE ALSO
times(2), wait(2), system(3S), thread_safety(5).
STANDARDS CONFORMANCE
clock(3C)