[mythtv] HDTV CPU utilization

Chris Mumford cmumford at cmumford.com
Wed Jan 19 21:31:21 EST 2005


> While top is running hit "1".  That will cause top to show individual
> tallies for each CPU.

Yes, I have done that, but then it just prints out numbers like this:

top - 19:58:47 up 9 min,  3 users,  load average: 1.11, 0.80, 0.38
Tasks:  95 total,   3 running,  92 sleeping,   0 stopped,   0 zombie
 Cpu0 : 56.1% us,  4.1% sy,  0.0% ni, 39.6% id,  0.1% wa,  0.1% hi,  0.0% si
 Cpu1 : 38.2% us,  2.1% sy,  0.0% ni, 59.6% id,  0.0% wa,  0.1% hi,  0.0% si
Mem:    513924k total,   361384k used,   152540k free,    34876k buffers
Swap:   522104k total,        0k used,   522104k free,   212904k cached

I still have to add up the columns 56.1% + 38.2% + 4.1% + 2.1% = 100.5%
which makes sense since the best synthetic hyperthreading improvement was
7%.

I'm wondering how the people that have posted their CPU utilization have
measured this. I wonder if maybe they are also being fooled into thinking
that top is reporting the CPU utilization correctly???



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