renice with sshd
I love winssh to transfer files from my windoz box to my linux box.
The problem is that my linux box will prioritise the sshd over my surfing and we know that is not right :)
I tried: renice -n 5 -p 1734
The pid was taken from the ps -ef command so I feel sure I wam pointing to the correct process.
Questions:
1) How do I renice this if I want to push back the priority after it starts.
2) who do I nice this if I want to make this a "non issue" in the future ?
Thank you all
Also part of this is for my own information. I can just move the speed slider to the left on the windows client but that is not the way they would ask for it to be done in an interview !
The problem is that my linux box will prioritise the sshd over my surfing and we know that is not right :)
I tried: renice -n 5 -p 1734
The pid was taken from the ps -ef command so I feel sure I wam pointing to the correct process.
Questions:
1) How do I renice this if I want to push back the priority after it starts.
2) who do I nice this if I want to make this a "non issue" in the future ?
Thank you all
Also part of this is for my own information. I can just move the speed slider to the left on the windows client but that is not the way they would ask for it to be done in an interview !
thegeekdom:~ # renice -n 5 -p 15051 || echo no renice allowed
5: old priority 0, new priority 0
15051: old priority 0, new priority 0
thegeekdom:~ # renice -n -5 -p 15051 || echo no renice allowed
renice: -5: bad value
15051: old priority 0, new priority 0
thegeekdom:~ # renice -n 1 -p 15051 || echo no renice allowed
1: old priority 0, new priority 0
15051: old priority 0, new priority 0
thegeekdom:~ # renice -n -1 -p 15051 || echo no renice allowed
renice: -1: bad value
15051: old priority 0, new priority 0
5: old priority 0, new priority 0
15051: old priority 0, new priority 0
thegeekdom:~ # renice -n -5 -p 15051 || echo no renice allowed
renice: -5: bad value
15051: old priority 0, new priority 0
thegeekdom:~ # renice -n 1 -p 15051 || echo no renice allowed
1: old priority 0, new priority 0
15051: old priority 0, new priority 0
thegeekdom:~ # renice -n -1 -p 15051 || echo no renice allowed
renice: -1: bad value
15051: old priority 0, new priority 0
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> renice does not allow normal users to rise priority of their processes. only root can do that.
hmm, the man page and the usage tells us that it works (range 0 .. 20)
> older process schedulers do not handle it in the way you expect.
gheist, do you have an example for that?
hmm, the man page and the usage tells us that it works (range 0 .. 20)
> older process schedulers do not handle it in the way you expect.
gheist, do you have an example for that?
1)
% uname
FreeBSD
%ps -l 16585
UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND
1001 16585 44853 0 96 0 1244 588 - T p1 0:00.00 cat
%renice 10 16585
16585: old priority 0, new priority 10
%ps -l 16585
UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND
1001 16585 44853 0 96 10 1244 588 - TN p1 0:00.00 cat
%renice 0 16585
renice: 16585: setpriority: Permission denied
%ps -l 16585
UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND
1001 16585 44853 0 96 10 1244 588 - TN p1 0:00.00 cat
2) It has minor effect in modern kernels, but when one ups priority of web surfer over dns cache ... blah blah blah ... blah blah blah
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