Re: sched_setscheduler() and usage issues ....please help
When I schedule my process with SCHED_FIFO policy (using sched_setscheduler()) , is there any means to verify that it is indeed being scheduled with the same priority? thanks arun From: Steven Rostedt <[EMAIL PROTECTED]> To: Arun Srinivas <[EMAIL PROTECTED]> Subject: Re: sched_setscheduler() and usage issues ....please help Date: Tue, 29 Mar 2005 06:31:43 -0500 On Tue, 2005-03-29 at 13:25 +0530, Arun Srinivas wrote: > thanks.gcc says "could not find strutils.h". I am using kernel 2.6.x with > gcc 3.3.4. Where can I find the file? Oops! Sorry, I gave you a modified version of my actual program. I have my own usage wrapper, that I use in all my tools. I took it out, but forgot about my header. That is a custom header, just take it out and it will compile. OK, just to be clean, I've attached it here. -- Steve << setscheduler.c >> _ Get the job you always wanted. http://www.naukri.com/tieups/tieups.php?othersrcp=736 Its simple, post your CV on Naukri.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
>FC2 has this. Even FC1 had it, and I'd not be surprised if even RHL9 had >this. I'd be very susprised if SuSE 9.1 doesn't have it either. It was introduced with SUSE Linux 9.1. But, as usually, I usually do not care for new packages when updating, and schedutils was not a dependency, so it lost itself until I actively checked what it's about when the boot process says "Setting scheduling timeslicesunused" Jan Engelhardt -- No TOFU for me, please. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
On Tue, 2005-03-29 at 08:03 +0200, Jan Engelhardt wrote: > >> > I am trying to set the SCHED_FIFO policy for my process.I am using > >> > sched_setscheduler() function to do this. > >> > >> Attached is a little program that I use to set the priority of tasks. > > > >Why not just use chrt from schedtools? > > Not every distro has it yet, and I like to point out that a lot of users is > still using "older" distros, such as FC2, SUSE 9.1, and also olders with > Linux > 2.4 kernels FC2 has this. Even FC1 had it, and I'd not be surprised if even RHL9 had this. I'd be very susprised if SuSE 9.1 doesn't have it either. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
>OK, I'm a little embarrassed. I never saw this tool. I use debian You don't need to be. Before I got to know of this tool, I also wrote my own. Look for "schedutils". >unstable, but didn't have the package loaded. I did a apropos on >sched_setscheduler, and it didn't come up with any tools, so I just >wrote my own! Jan Engelhardt -- No TOFU for me, please. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
On Tue, 2005-03-29 at 08:03 +0200, Jan Engelhardt wrote: > >> > I am trying to set the SCHED_FIFO policy for my process.I am using > >> > sched_setscheduler() function to do this. > >> > >> Attached is a little program that I use to set the priority of tasks. > > > >Why not just use chrt from schedtools? > > Not every distro has it yet, and I like to point out that a lot of users is > still using "older" distros, such as FC2, SUSE 9.1, and also olders with > Linux > 2.4 kernels. OK, I'm a little embarrassed. I never saw this tool. I use debian unstable, but didn't have the package loaded. I did a apropos on sched_setscheduler, and it didn't come up with any tools, so I just wrote my own! Thanks, -- Steve - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
>> > I am trying to set the SCHED_FIFO policy for my process.I am using >> > sched_setscheduler() function to do this. >> >> Attached is a little program that I use to set the priority of tasks. > >Why not just use chrt from schedtools? Not every distro has it yet, and I like to point out that a lot of users is still using "older" distros, such as FC2, SUSE 9.1, and also olders with Linux 2.4 kernels. Jan Engelhardt -- No TOFU for me, please. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
On Mon, 2005-03-28 at 23:40 -0500, Steven Rostedt wrote: > On Tue, 2005-03-29 at 08:58 +0530, Arun Srinivas wrote: > > I am trying to set the SCHED_FIFO policy for my process.I am using > > sched_setscheduler() function to do this. > > Attached is a little program that I use to set the priority of tasks. Why not just use chrt from schedtools? Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: sched_setscheduler() and usage issues ....please help
On Tue, 2005-03-29 at 08:58 +0530, Arun Srinivas wrote:
> I am trying to set the SCHED_FIFO policy for my process.I am using
> sched_setscheduler() function to do this.
Attached is a little program that I use to set the priority of tasks.
-- Steve
/* Copyright (C) 2004 Kihon Technologies Inc.
This utilities is free software, you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
These utilities are distributed in the hope that they will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/*
* Author: Steven Rostedt
*/
#include
#include
#include
#include
#include
#include
void usage (char **argv)
{
char *arg = argv[0];
char *p = arg + strlen(arg);
while (p >= arg && *p != '/') p--;
p++;
fprintf(stderr,"usage: %s pid policy priority\n"
"\n\twhere policy is SCHED_RR, SCHED_FIFO or SCHED_OTHER\n"
"\n", p);
exit(-1);
}
int main (int argc, char **argv)
{
pid_t pid;
int policy;
struct sched_param p;
char *strpolicy;
if (argc != 4)
usage(argv);
strpolicy = argv[2];
pid = atoi(argv[1]);
p.sched_priority = atoi(argv[3]);
if (strcmp(strpolicy,"SCHED_RR")==0) {
policy = SCHED_RR;
} else if (strcmp(strpolicy,"SCHED_FIFO") == 0) {
policy = SCHED_FIFO;
} else if (strcmp(strpolicy,"SCHED_OTHER") == 0) {
policy = SCHED_OTHER;
} else {
fprintf(stderr,"\nunknown policy %s",strpolicy);
usage(argv);
}
if (sched_setscheduler(pid,policy,&p)) {
perror("sched_setscheduler");
exit(errno);
}
exit(0);
}
