How long can you run Mint before "Slow Down"

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How long can you run Mint before "Slow Down"

Postby Garvan on Wed Jan 09, 2013 6:07 am

I have two console programs that require a long time to complete. One max'es out both CPU's and takes between 24 and 36 hours to complete running. Right from the beginning the system is unresponsive, but that is expected. But It should start working again when the program finishes, shouldn't it? When it finishes the system is so slow it is very difficult to shut down the computer. It might take five or ten minutes of trying to shut down programs and get the menu to respond.

A second program uses only one CPU so the system remains responsive at the start. But the program takes longer to complete, more than two days, and by the end the system is unresponsive again. Not as bad as the the first example, but bad.

I am running a 32-bit OS with 2 GB of memory.

Can others run programs continuously for long periods of time?

Garvan
Desktop: Dell, Intel Core 2 Duo E7500 @ 2.93GHz, 2GiB RAM, Lubuntu 14.04 (trusty)
Notebook: HP 14 Notebook PC 14-r003TX, i5-4210U @ 1.7 GHz, 4GB RAM, Linux Mint 17
Notebook: DELL latitude E5520, i5-2520M @ 2.50 GHz, 4GB RAM, Windows 7
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Re: How long can you run Mint before "Slow Down"

Postby dalcde on Wed Jan 09, 2013 6:11 am

What exactly are the programs?
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Re: How long can you run Mint before "Slow Down"

Postby Garvan on Wed Jan 09, 2013 10:36 am

dalcde wrote:What exactly are the programs?

http://www.genetics.ucla.edu/software/admixture/ & http://code.google.com/p/treemix/ respectively.

Garvan
Desktop: Dell, Intel Core 2 Duo E7500 @ 2.93GHz, 2GiB RAM, Lubuntu 14.04 (trusty)
Notebook: HP 14 Notebook PC 14-r003TX, i5-4210U @ 1.7 GHz, 4GB RAM, Linux Mint 17
Notebook: DELL latitude E5520, i5-2520M @ 2.50 GHz, 4GB RAM, Windows 7
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Re: How long can you run Mint before "Slow Down"

Postby Flemur on Wed Jan 09, 2013 12:25 pm

A couple of things that may help...

Try running the pgms with lower priority, i.e.
Code: Select all
$ nice pgm_name

or w/renice after it starts.

After they're done, flush memory:
Code: Select all
# This needs to be run as REAL root: "sudo -l"  or "sudo -s"
#!/bin/sh
sync; echo 3 > /proc/sys/vm/drop_caches


Other ideas: check the memory and swap file size/useage, and "swappiness".
Mint 17/Xfce/fluxbox/jackd no pulseaudio
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