The "runnable" runstate can be reached either waiting for a cpu
when waking, or when preempted. Keep track of these separate states
and report them under "runnable".
Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
diff -r 4e88187c91ba -r d8690ca24f39 xenalyze.c
--- a/xenalyze.c Mon Nov 22 12:39:38 2010 +0000
+++ b/xenalyze.c Wed Dec 01 09:52:58 2010 +0000
@@ -1520,6 +1520,21 @@
[RUNSTATE_LOST]= "lost",
};
+enum {
+ RUNNABLE_STATE_INVALID,
+ RUNNABLE_STATE_WAKE,
+ RUNNABLE_STATE_PREEMPT,
+ RUNNABLE_STATE_OTHER,
+ RUNNABLE_STATE_MAX
+};
+
+char * runnable_state_name[RUNNABLE_STATE_MAX]={
+ [RUNNABLE_STATE_INVALID]="invalid", /* Should never show up */
+ [RUNNABLE_STATE_WAKE]="wake",
+ [RUNNABLE_STATE_PREEMPT]="preempt",
+ [RUNNABLE_STATE_OTHER]="other",
+};
+
/* Memory data */
enum {
MEM_PAGE_GRANT_MAP = 1,
@@ -1596,6 +1611,7 @@
/* Schedule info */
struct {
int state;
+ int runnable_state; /* Only valid when state==RUNSTATE_RUNNABLE */
tsc_t tsc;
/* TSC skew detection/correction */
struct last_oldstate_struct {
@@ -1621,6 +1637,7 @@
/* Summary info */
struct cycle_framework f;
struct cycle_summary runstates[RUNSTATE_MAX];
+ struct cycle_summary runnable_states[RUNNABLE_STATE_MAX];
struct weighted_cpi_summary cpi;
struct cycle_summary cpu_affinity_all,
cpu_affinity_pcpu[MAX_CPUS];
@@ -4901,6 +4918,9 @@
if(v->runstate.state == RUNSTATE_RUNNING)
update_cycles(&v->d->total_time, tsc - v->runstate.tsc);
+ if(v->runstate.state == RUNSTATE_RUNNABLE)
+ update_cycles(v->runnable_states + v->runstate.runnable_state, tsc
- v->runstate.tsc);
+
/* How much did dom0 run this buffer? */
if(v->d->did == 0) {
int i;
@@ -4925,6 +4945,26 @@
}
}
}
+
+ /* Detect "runnable" states */
+ if ( new_runstate == RUNSTATE_RUNNABLE )
+ {
+ switch(v->runstate.state)
+ {
+ case RUNSTATE_RUNNING:
+ v->runstate.runnable_state=RUNNABLE_STATE_PREEMPT;
+ break;
+ case RUNSTATE_BLOCKED:
+ case RUNSTATE_OFFLINE:
+ v->runstate.runnable_state=RUNNABLE_STATE_WAKE;
+ break;
+ default:
+ v->runstate.runnable_state=RUNNABLE_STATE_OTHER;
+ break;
+ }
+ } else
+ v->runstate.runnable_state=RUNNABLE_STATE_INVALID;
+
v->runstate.state = new_runstate;
v->runstate.tsc = tsc;
@@ -7257,6 +7297,16 @@
for(i=0; i<RUNSTATE_MAX; i++) {
snprintf(desc,30, " %8s", runstate_name[i]);
print_cycle_summary(v->runstates+i, desc);
+ if ( i==RUNSTATE_RUNNABLE )
+ {
+ int j;
+ for(j=0; j<RUNNABLE_STATE_MAX; j++) {
+ if ( j == RUNNABLE_STATE_INVALID )
+ continue;
+ snprintf(desc,30, " %8s", runnable_state_name[j]);
+ print_cycle_summary(v->runnable_states+j, desc);
+ }
+ }
}
print_cpi_summary(&v->cpi);
print_cpu_affinity(&v->cpu_affinity_all, " cpu affinity");
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