Re: Memory usage goes up, but never down!
- From: Harald Finster <hfinster@xxxxxx>
- Date: Thu, 01 Feb 2007 21:53:12 +0100
Hello,
in addition to what has already been said, you could also watch the
output of the 'top' command in order to monitor your system.
First example:
relatively small amount of memory is used. The process 'unsharp'
makes use of almost 100% of the CPU power.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7913 finster 25 0 107m 13m 8520 R 98 0.3 0:13.48 unsharp
Second example:
a huge image has been created. The image manipulation program
(gimp) uses up almost all system memory (87%) Some memory has
been swapped out. A process ('sharpen') can use only 21% of the
CPU, because of swapping overhead.
Watch out for processes in state 'D' (uninterruptible sleep),
which indicates in many cases, that the process is waiting for
data swapped in/out.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8826 finster 18 0 139m 45m 8528 S 21 1.2 0:02.15 sharpen
7861 finster 16 0 5979m 3.4g 8364 D 15
87.7 3:41.91 gimp
Greetings Harald
.
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