Re: Top not showing cpu usage even remotely accurately

2006-09-15 Thread Dan Nelson
In the last episode (Sep 15), Ian Smith said: > On Thu, 14 Sep 2006, Dan Nelson wrote: > > I would guess that maybe xmms (or some other threaded app) is your > > hidden CPU consumer. The kernel does not calculate %CPU correctly > > for libkse-threaded programs, and they usually show up as 0% al

Re: Top not showing cpu usage even remotely accurately

2006-09-15 Thread Ian Smith
On Thu, 14 Sep 2006, Dan Nelson wrote: > In the last episode (Sep 14), Ian Smith said: > [..]> > > However that doesn't explain this typical top view when the system is > > quiescent or nearly so, as it mostly is, with only 5-minutely crons and > > 11-minutely entropy runs and the odd sendmai

Re: Top not showing cpu usage even remotely accurately

2006-09-14 Thread Dan Nelson
In the last episode (Sep 14), Ian Smith said: > I still can't fathom what top tells me on a UP 5.5-STABLE system (300MHz > Celeron if speed's relevant). I initiated this thread (weeks ago :) re > seeing 0.0% idle (as expected) during buildworld but not seeing anything > add up to anything like 100

Re: Top not showing cpu usage even remotely accurately

2006-09-14 Thread Ian Smith
On Thu, 14 Sep 2006, Giorgos Keramidas wrote: > On 2006-09-14 00:48, "Tamouh H." <[EMAIL PROTECTED]> wrote: > > I think TOP and load averages are no longer accurate on FBSD 5.x and > > 6.x with SMP kernel. As far as I've seen. Load averages hit sometimes > > 8.0 without a noticable degradation

Re: Top not showing cpu usage even remotely accurately

2006-09-13 Thread Giorgos Keramidas
On 2006-09-14 00:48, "Tamouh H." <[EMAIL PROTECTED]> wrote: > I think TOP and load averages are no longer accurate on FBSD 5.x and > 6.x with SMP kernel. As far as I've seen. Load averages hit sometimes > 8.0 without a noticable degradation in performance. > > This is one TOP that freaked me out, n

Re: Top not showing cpu usage even remotely accurately

2006-09-13 Thread Dan Nelson
In the last episode (Sep 14), Tamouh H. said: > This is one TOP that freaked me out, notice Idle CPU is 70% while the > process is showing it is using 99% of CPU. systat draws more accurate > picture, however, load average is still useless as far as performance > monitoring : > > last pid: 10174;

RE: Top not showing cpu usage even remotely accurately

2006-09-13 Thread Tamouh H.
> > In recent 6.X versions, you can use 'S' to show system threads too. > For an even more fine-grained view, you can use 'H' to show > each thread separately. > > Then there is also the 'CPU' mode (as opposed to the default 'WCPU' > mode of top). > > > I've the same issue with FBSD 5.4 and TOP

Re: Top not showing cpu usage even remotely accurately

2006-08-10 Thread Ian Smith
On Thu, 10 Aug 2006, Chuck Swiger wrote: > Ian Smith wrote: > > But since running 5.x (5.5-STABLE since 1st Aug) top can show 0.0% idle > > but the cpu usages shown don't add up to much of a fraction of 100%. > [ ... ] > > Any ideas why top hasn't much of a clue about what's consuming cpu? >

Re: Top not showing cpu usage even remotely accurately

2006-08-10 Thread Chuck Swiger
Ian Smith wrote: But since running 5.x (5.5-STABLE since 1st Aug) top can show 0.0% idle but the cpu usages shown don't add up to much of a fraction of 100%. [ ... ] Any ideas why top hasn't much of a clue about what's consuming cpu? Sure, if you're running a parallel make, that will be start

Re: Top not showing cpu usage even remotely accurately

2006-08-09 Thread Giorgos Keramidas
On 2006-08-10 00:45, "Tamouh H." <[EMAIL PROTECTED]> wrote: > > But since running 5.x (5.5-STABLE since 1st Aug) top can show > > 0.0% idle but the cpu usages shown don't add up to much of a > > fraction of 100%. In recent 6.X versions, you can use 'S' to show system threads too. For an even mor

RE: Top not showing cpu usage even remotely accurately

2006-08-09 Thread Tamouh H.
> But since running 5.x (5.5-STABLE since 1st Aug) top can show > 0.0% idle but the cpu usages shown don't add up to much of a > fraction of 100%. > > For a typical illustration: 'make index' has been running for > hours, and here's a shot of 'nice top', o)rdered by cpu, > showing S)ystem proc