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service utility can par cpu option in system.conf

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- does not have any effect, solely for debugging SMP

- backward compatible with older RS instance
This commit is contained in:
Tomas Hruby 2010-07-20 07:27:45 +00:00
parent 1b7d95df29
commit f248bffc9e
4 changed files with 62 additions and 2 deletions
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49
commands/service/service.c
View file

@ -412,6 +412,7 @@ PRIVATE void fatal(char *fmt, ...)
#define KW_SCHEDULER "scheduler"
#define KW_PRIORITY "priority"
#define KW_QUANTUM "quantum"
#define KW_CPU "cpu"
#define KW_IRQ "irq"
#define KW_IO "io"
#define KW_PCI "pci"
@ -649,7 +650,7 @@ PRIVATE void do_priority(config_t *cpe)
fatal("do_priority: priority %d out of range at %s:%d",
priority_val, cpe->file, cpe->line);
}
rs_start.rss_priority= (unsigned) priority_val;
rs_start.rss_priority= priority_val;
}
PRIVATE void do_quantum(config_t *cpe)
@ -687,7 +688,45 @@ PRIVATE void do_quantum(config_t *cpe)
fatal("do_quantum: quantum %d out of range at %s:%d",
quantum_val, cpe->file, cpe->line);
}
rs_start.rss_quantum= (unsigned) quantum_val;
rs_start.rss_quantum= quantum_val;
}
PRIVATE void do_cpu(config_t *cpe)
{
int cpu;
char *check;
/* Process a quantum value */
if (cpe->next != NULL)
{
fatal("do_cpu: just one value expected at %s:%d",
cpe->file, cpe->line);
}
if (cpe->flags & CFG_SUBLIST)
{
fatal("do_cpu: unexpected sublist at %s:%d",
cpe->file, cpe->line);
}
if (cpe->flags & CFG_STRING)
{
fatal("do_cpu: unexpected string at %s:%d",
cpe->file, cpe->line);
}
cpu= strtol(cpe->word, &check, 0);
if (check[0] != '\0')
{
fatal("do_cpu: bad value '%s' at %s:%d",
cpe->word, cpe->file, cpe->line);
}
if (cpu <= 0)
{
fatal("do_cpu: %d out of range at %s:%d",
cpu, cpe->file, cpe->line);
}
rs_start.rss_cpu= cpu;
}
PRIVATE void do_irq(config_t *cpe)
@ -1261,6 +1300,11 @@ PRIVATE void do_service(config_t *cpe, config_t *config)
do_quantum(cpe->next);
continue;
}
if (strcmp(cpe->word, KW_CPU) == 0)
{
do_cpu(cpe->next);
continue;
}
if (strcmp(cpe->word, KW_IRQ) == 0)
{
do_irq(cpe->next);
@ -1417,6 +1461,7 @@ PUBLIC int main(int argc, char **argv)
rs_start.rss_scheduler= DSRV_SCH;
rs_start.rss_priority= DSRV_Q;
rs_start.rss_quantum= DSRV_QT;
rs_start.rss_cpu = DSRV_CPU;
if (req_config) {
assert(progname);

4
include/minix/config.h
View file

@ -85,6 +85,10 @@
/* default scheduling quanta */
#define USER_QUANTUM 200
/* defualt user process cpu */
#define USER_DEFAULT_CPU -1 /* use the default cpu or do not change the
current one */
/*===========================================================================*
* There are no user-settable parameters after this line *
*===========================================================================*/

3
include/minix/priv.h
View file

@ -89,4 +89,7 @@
#define DSRV_QT USER_QUANTUM /* dynamic system services */
#define USR_QT USER_QUANTUM /* user processes */
/* default CPU */
#define DSRV_CPU USER_DEFAULT_CPU
#endif /* _MINIX_PRIV_H */

8
include/minix/rs.h
View file

@ -71,6 +71,14 @@ struct rs_start
bitchunk_t rss_vm[VM_CALL_MASK_SIZE];
int rss_nr_control;
struct rss_label rss_control[RS_NR_CONTROL];
/*
* SMP specific data
*
* must be at the end of the structure for binary compatibility with
* non-smp sysytems
*/
int rss_cpu;
};
/* ACL information for access to PCI devices */