Is there a possibility to prevent swapping for a single process?
This process is an in-memory-database and should not be moved to virtual ram.
all other processes should still be swap-able.
I need something like the "lock pages in memory" option of the SQL-Server.
I have a specific ram-intensive program I run which slows down my entire system for hours after each run - does the Windows NT 6.0/6.1 kernel have any tunables to encourage processes' working sets to be paged back into RAM quicker?
The program in question reads a 1.5GB file into a 1.5GB malloc'ed buffer, does a little processing for a minute, and then quits.
While it is running, all other programs are paged out to disk as expected. When the program ends, the programs are not paged back again. Even if I wait hours, they do not get brought back. That means when I show up and try to use my computer it's painfully slow for ages while it slowly pages each process back in as I use it.
It appears when the process has exited, the "Cached" memory number shown by task manager is very large, and "Free" is very low. Every running process only uses 1 or 2 MB of "Working set", whereas they have normal amounts of "Commit size", indicating most of their pages are on disk.
To me this appears that Windows is using RAM for disk cache to keep my large 1.5GB file just incase I want to re-read it (which I don't), rather than fetching back my normal processes. Is there any way to force this balance towards processes and away from disk cache?
Under a UNIX shell, how can I get a similar effect to the watch command, but with paging so that I can scroll around in the output if it takes up more than one screen?
In other words, I want a program that is to watch what less is to cat.
As an example, lets say I wanted to watch the output of qstat, I could use
watch qstat
to watch the output of qstat, but this can only shows the first screenful.
With a paging version of watch, I would be able to move around in the output as it is still continuously updated by watch. Is there any way to do this at the moment with existing utilities?
I'd like to configure bash to page the output of all commands. Essentially, I want bash to behave as if every command I enter ended with '| less'. Is this possible?
Is there any tool that draws a graphic visualization of a process' memory?
I'd like a graph showing the percentage of pages in physical memory and in the page file.