Hi all,

Could someone explain to me why one and same application starts multipple time and takes a lot of memory on RedHat 7.3.

Look at my 'top' output below:


4880 rouzbeh 15 0 31992 31M 15308 S 0.0 4.1 1:20 mozilla-bin
4932 rouzbeh 15 0 31992 31M 15308 S 0.0 4.1 0:00 mozilla-bin
4933 rouzbeh 15 0 31992 31M 15308 S 0.0 4.1 0:00 mozilla-bin
4934 rouzbeh 15 0 31992 31M 15308 S 0.0 4.1 0:00 mozilla-bin
4935 rouzbeh 15 0 31992 31M 15308 S 0.0 4.1 0:00 mozilla-bin
4983 rouzbeh 15 0 31992 31M 15308 S 0.0 4.1 0:00 mozilla-bin
4643 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:13 evolution
4647 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:00 evolution
4648 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:00 evolution
4649 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:01 evolution
4650 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:00 evolution
4651 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:00 evolution
4657 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:00 evolution
4875 rouzbeh 15 0 27052 26M 14596 S 0.0 3.5 0:00 evolution
1944 root 6 -10 33752 17M 4704 S < 30.8 2.3 7:12 X
4584 rouzbeh 15 0 14572 14M 7248 S 0.0 1.8 0:01 evolution-excha
4516 rouzbeh 15 0 9896 9892 7096 S 0.0 1.2 0:01 nautilus
4602 rouzbeh 15 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4603 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4605 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4606 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4607 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4608 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4609 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4610 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4611 rouzbeh 15 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4612 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4613 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4614 rouzbeh 15 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4616 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4617 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4618 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4619 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4620 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4623 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4626 rouzbeh 17 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4627 rouzbeh 20 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
4628 rouzbeh 20 0 9896 9892 7096 S 0.0 1.2 0:00 nautilus
1903 root 15 0 9544 9544 2304 S 0.0 1.2 0:03 rcd

Those are instances. Depending on how the application is built more than one instance can be initiated (like with Nautilus and Mozilla). The amount of memory displayed is the total shared memory used by the instance. So if there are five Nautilus instances each displaying 20MB used, the total used is 20MB, not 20x5=100MB.

Håkan

Type this to see a tree of processes: the KDE also has a nice system guard tool, including task manager that could display the same information.