[linux] paralelne spustanie procesov (kompresia logov)

[Lubomir Host]

A v Debiane som na to este nasiel balik 'schedtool'

Description: Queries/alters process' scheduling policy and CPU affinity
 Schedtool can query or alter a process' scheduling policy in Linux,
 specifically assigning SCHED_NORMAL, _FIFO, _RR, _BATCH, _ISO or _IDLEPRIO. It
 can set static priority for _FIFO and _RR. Setting CPU-affinity and (re)nicing
 is also possible, making schedtool the definitive interface to Linux scheduler.
 .
 It can be used to avoid skips and glitches in A/V applications, to lock
 processes onto given CPUs on SMP/NUMA systems, which may be beneficial for
 networking or benchmarks, or to adjust nice-levels of lesser important jobs to
 maintain a high amount of interactive responsiveness under high load. It is
 also handy to manage realtime processes.
 .
 If you don't know about scheduling policies, you probably don't want to use
 this program - or learn and read "man sched_setscheduler".
 .
 Some supported scheduling policies (such as SCHED_ISO, or SCHED_IDLEPRIO) need
 a patched kernel (eg. Con Kolivas' -ck patchset).
Tag: admin::kernel, implemented-in::c, interface::commandline, role::program, scope::utility, use::configuring, works-with::software:running


On Tue, Feb 02, 2010 at 09:47:59PM +0100, Peter Viskup wrote:
> Nevsimol som si, ze to chces bindovat na jednotlive procesory.
> Pre Perl mozes pouzit modul Forks::Super
> http://search.cpan.org/~mob/Forks-Super-0.11/lib/Forks/Super.pm
> pre prikazovy riadok utility taskset.
>
> --
> Peter Viskup
>
> Peter Viskup wrote:
>> Naskriptuj si to.
>> Ja som to riesil v Perl-e (urcite sa to da aj v shelli ;-) ).
>> (nasledujuci kod nemusi byt plne funkcny a je nutne ho doplnit)
>>
>> # spracuva sa prvy argument vo forme --childs <number>
>>
>> use warnings;
>> use strict;
>> use locale;
>> my $MAXCHILD = 5;
>> my $CURCHILD = 0;
>> my ($num, $start_num, $end_num, $childs) = (0,0,0);
>>
>> use Getopt::Long;
>> if (!GetOptions('childs=i'=>\$childs)) {
>>    usage();
>>    die "Wrong options!\n";
>> }
>> if ($childs>0){
>>    $MAXCHILD=$childs;
>> }
>>
>> while ($num <= $end_num) {
>>    if($CURCHILD < $MAXCHILD){
>>        if(my $pid = fork()){
>>            addchild();
>>        }
>>        elsif(defined $pid){
>>            # tuto nieco vykonava child...
>>            exit;
>>        }
>>        else{
>>            die "Fork failed: $!\n";
>>        }
>>    }
>>    else {
>>        while($CURCHILD >= $MAXCHILD){
>>            my $processid = waitpid(-1, 0);
>>            delchild();
>>        }
>>    }
>> }
>> sub addchild {$num++; $CURCHILD++;}
>> sub delchild {$CURCHILD--;}
>>
>>
>> -- 
>> Peter Viskup
>>
>>
>> Matus UHLAR - fantomas wrote:
>>> Zdravim,
>>>
>>> poznate niekto aplikaciu ktora by mi umoznila zadefinovat niekolko  
>>> procesov
>>> ktore by sa mali spustit, pricom paralelne by malo bezat vzdy max. X
>>> procesov?
>>>
>>> rad by som komprimoval dost velke logy paralelne na kazdom procesore  
>>> jeden
>>>
>>>   
>>
>>
>
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