ender8282 at yahoo.com
Sat Dec 20 05:43:16 UTC 2008
> I had to disable SATA native support.
Why did you have to disable SATA support? I have a machine that I game
on and it supports SATA without problems. It doesn't sound like SATA is
your problem thought (read below).
> Normal working is also slow. Firefox, OO windows dimmed too frequenty
> and I have to wait to get response. Most of time HDD's activities make
> be believe that I am working on PC-XT m/c.
Are you running out of RAM and swapping to disk? This could cause
> Now load average for 1, 5, 15 minutes is 3.72, 4.11, 3.28
This seems really high. What is running and taking up all of you cpu
time? I had a problem with my machine at work and it turned out that the
machine frantically swapping memory out.
>> Can you install 'bootchart'?
> Here is output:
Thanks for posting those but unfortunately I could not quite make those
out. (Resolution was too low). If you look at the graphs you can see
that everything stops for a while (i.e. no disk IO and no cpu
utilization). What was 'running' while nothing was happening? Can you
mail me one off list the pictures (ender8282 at yahoo.com)? I don't think
it matters which one just so I can read the text.
> It is installed. But It is there with default setting, as I was not aware of it.
Hopefully someone with more knowledge will correct me on this if I am
wrong but... I believe that you have to boot once with the flag
'profile' attached to your kernel options. Profiling creates a list of
the files needed to boot so that the machine can fetch the files before
it needs them. Since fetching files is 'slow' it is better to have them
cached and waiting. I assume that if you never profile your boot then
the readahead list is empty and in a fraction of a millisecond your
machine finishes running it and moves on to the next step in the boot
sequence. I am not sure on this though. Maybe readahead is smarter than
I am (many things are).
Even though I couldn't make out everything on the bootchart it is claer
that you are not waiting on disk IO or on the CPU so there is something
To be or not to be, that is the question
2b || !2b
(0b10)*(0b1100010) || !(0b10)*(0b1100010)
0b11000100 || !0b11000100
0b11000100 || 0b00111011
255, that is the answer.
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