> On Sun, 2004-06-20 at 06:16, Fons van der Beek wrote: > > > On Sat, 2004-06-19 at 14:39, Fons van der Beek wrote: > > > > > On Sat, 2004-06-19 at 02:29, Fons van der Beek wrote: > > > > > > > > I'am really sorry, the overall cpu usage is 95% user and 5% system usage > > > > But all processes together dont come near the summ ................(also > > not > > > > with i pressed) > > > > > > > > I realy don't get it.... I'am converting emails, mozzilla, dbmail (mysql > > > > database) but i don't see them > > > > i has been pressed, u with blank has been pressed, sorted on cpu % but > > > > no............I don't get it > > > > > > Is it always showing 95% utilization? It has been my experience that > > > many processes on Linux systems are very short-lived; shorter than the > > > cycle time of top. This is especially true for any machine with a > > > multi-gigahertz CPU. > > > > Pentium 4 celeron / 768 MB memory > > > > > When I run make on a large software package, it is obvious from its > > > output that there are many invocations of the compiler, and the total > > > CPU usage is quite high, but I may not see any process in top with > > > greater than 5% CPU. They all (most all) complete between cycles of top, > > > therefore top will not see those processes. top takes a snapshot of the > > > system at the time it wakes up. Any process that exits prior to a > > > snapshot will not be reported by top. > > > > I never expierenced that while making files I allways had (on Redhat 8.0 2.4 > > kernel) a good summ of > > the cpu % of each process > > > > > Perhaps you need to look at the rate of process creation: gkrellm can do > > > this. > > > > I looked at gkrellm, I guess (not complety sure if i interpret the graph ok) > > that i have 6 forks pro second. > > i still cant explain why there is such a enormous difference between > > CPU-usage overall and cpu usage > > for the main processes, i'am checking in data and mysqld has 0% CPU > > utilization....... > > > > Do you know of any other tools which show cpu usage for each process? > > ps can also show you cpu utilization, but my understanding is that its > information comes from the same place top gets it. Have you tried > turning on process accounting? That should give you more information > about completed processes. man accton. > -- > C. Linus Hicks <lhicks@xxxxxxxxx> > After a lot playing around with top,accton, gkrelm I have to conclude that top isn't my "TOP" tool anymore, after trying all varies options it turned out that i don't see my MYSQL proces processor utilization I really don't know what I'am doing wrong, top used to be my favorite tool in quick optimizing systems / hd bandwith etc etc but in the current form its pretty useless to me....
