Hi, "Manish Katiyar" <mkatiyar@xxxxxxxxx> writes: > On Sat, May 17, 2008 at 11:55 AM, Indraneel Mukherjee > <mukherjee.indraneel@xxxxxxxxx> wrote: >> Hi All, >> I'm looking for a way to track the sequence in which processes were >> scheduled by the scheduler. Just the sequence in which processes were >> scheduled like 23,34 45,665, 34 .... >> I think it can be done by inserting a printk at some appropriate >> place in the scheduler but i'm not sure were. Can i get some pointers >> in that direction? Is there any other easy way? > > How about adding something like in the function schedule() in kernel/sched.c > > printk(KERN_CRIT "Scheduling process [%u] \n",current->tgid); On a mostly idling machine I get between 40 and 100 context switches per second. I doubt you want to have this printk(). Better have the scheduler push every new PID on a ring of limited size and make the items readable in that order via /proc. Hannes -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
