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11-13-2007, 12:41 AM
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#1
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LQ Newbie
Registered: Jan 2007
Posts: 16
Rep:
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TOP Command Details
Hi,
Pls give me details of TOP Command what these us, sy,ni ,id,wa,hi,and Si Stands for....
and whts the ideal percentage of these.....
Cpu(s): 0.6% us, 0.1% sy, 0.0% ni, 74.4% id, 24.9% wa, 0.0% hi, 0.0% si
Thanks
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11-13-2007, 02:41 AM
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#2
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Moderator
Registered: Apr 2002
Location: earth
Distribution: slackware by choice, others too :} ... android.
Posts: 23,067
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man top
read that, and come back if you didn't understand a
specific part ....
Cheers,
Tink
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11-13-2007, 02:48 AM
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#3
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LQ Veteran
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 21,361
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It may not surprise you to learn you are not the first to ask.
Use the search function before asking more.
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05-14-2009, 05:40 PM
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#4
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LQ Newbie
Registered: Aug 2006
Location: VA
Distribution: Fedora, Red Hat
Posts: 9
Rep:
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Definitions
us: user cpu time
sy: system cpu time
ni: user nice cpu time
id: idle cpu time
wa: io wait cpu time
hi: hardware irq (servicing hardware interrupts)
si: software irq (servicing software interrupts)
st: steal time (time in involuntary wait by virtual cpu while hypervisor is servicing another processor)
man vmstat
man mpstat
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09-14-2009, 10:41 AM
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#5
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Member
Registered: Apr 2009
Location: Bengaluru, India
Distribution: RHEL 5.4, 6.0, Ubuntu 10.04
Posts: 707
Rep:
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Quote:
Originally Posted by amachina
us: user cpu time
sy: system cpu time
ni: user nice cpu time
id: idle cpu time
wa: io wait cpu time
hi: hardware irq (servicing hardware interrupts)
si: software irq (servicing software interrupts)
st: steal time (time in involuntary wait by virtual cpu while hypervisor is servicing another processor)
man vmstat
man mpstat
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Helped a lot....
Thanks a loooot...
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09-15-2009, 11:40 AM
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#6
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LQ Newbie
Registered: Jan 2007
Posts: 16
Original Poster
Rep:
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Thanks a lot.!!!
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02-18-2010, 02:20 AM
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#7
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LQ Newbie
Registered: Dec 2008
Posts: 2
Rep:
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Quote:
Originally Posted by amachina
us: user cpu time
sy: system cpu time
ni: user nice cpu time
id: idle cpu time
wa: io wait cpu time
hi: hardware irq (servicing hardware interrupts)
si: software irq (servicing software interrupts)
st: steal time (time in involuntary wait by virtual cpu while hypervisor is servicing another processor)
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Interestingly this information is (stil) missing from the man pages (at least on my distro) so I'm wondering what alternate source you used.
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