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monitor: Add drift info to 'info jit'

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Show in 'info jit' the current delay between the host clock
and the guest clock. In addition, print the maximum advance
and delay of the guest compared to the host.

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sebastian Tanase 2014-07-25 11:56:33 +02:00 • committed by Paolo Bonzini
parent 7f7bc144ed
commit 27498bef35
4 changed files with 30 additions and 0 deletions
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19
cpus.c
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@ -64,6 +64,8 @@
#endif /* CONFIG_LINUX */
static CPUState *next_cpu;
int64_t max_delay;
int64_t max_advance;
bool cpu_is_stopped(CPUState *cpu)
{
@ -1552,3 +1554,20 @@ void qmp_inject_nmi(Error **errp)
error_set(errp, QERR_UNSUPPORTED);
#endif
}
void dump_drift_info(FILE *f, fprintf_function cpu_fprintf)
{
if (!use_icount) {
return;
}
cpu_fprintf(f, "Host - Guest clock %"PRIi64" ms\n",
(cpu_get_clock() - cpu_get_icount())/SCALE_MS);
if (icount_align_option) {
cpu_fprintf(f, "Max guest delay %"PRIi64" ms\n", -max_delay/SCALE_MS);
cpu_fprintf(f, "Max guest advance %"PRIi64" ms\n", max_advance/SCALE_MS);
} else {
cpu_fprintf(f, "Max guest delay NA\n");
cpu_fprintf(f, "Max guest advance NA\n");
}
}