Re: top info
thanks a lot for the fast reply!
so that basically means i should replace my IDE drive
with a SCSI drive, because much of my cpu time is spend
for IO-requests? does SATA help here?
Sunday, May 30, 2004, 6:08:13 PM, you wrote:
PB> On Sunday 30 May 2004 16:58, Corin Langosch wrote:
>> i'm now sucessfully running our mysql-server with debian
>> pure64 for two days :-). when running top the summary output
>> is something like this:
>> top - 17:53:43 up 2 days, 43 min, 1 user, load average: 0.31, 0.77, 0.70
>> Tasks: 212 total, 1 running, 211 sleeping, 0 stopped, 0 zombie
>> Cpu0 : 7.8% us, 4.9% sy, 0.0% ni, 68.6% id, 18.6% wa, 0.0% hi, 0.0%
>> si Cpu1 : 9.0% us, 3.0% sy, 0.0% ni, 57.0% id, 31.0% wa, 0.0% hi, 0.0%
>> si Mem: 4068456k total, 4052936k used, 15520k free, 98372k buffers
>> Swap: 2077704k total, 0k used, 2077704k free, 2761232k cached --
>> 'us' means user, 'sy' means system, 'id' means idle, but what does
>> 'ni','hi', 'si' and especially 'wa' mean? i see that most often 'wa' has
>> relatively high values.
PB> ni = nice
PB> hi = ? Probably hard interrupt
PB> si = ? Probably soft interrupt
PB> wa = IO wait
PB> wa typically has high values if the machine is waiting to IO to complete,
PB> doesn't have anything else to do.
PB> IIRC the more detailed split was introduced in 2.5/6 kernels, and is not amd64
- Re: top info
- From: Chris Cheney <firstname.lastname@example.org>
- Re: top info
- From: Olaf Hartmann <email@example.com>