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qsp: add sort_by option to qsp_report

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Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Emilio G. Cota 2018-08-16 23:14:40 -04:00 • committed by Paolo Bonzini
parent fe9959a275
commit 0a22777c71
2 changed files with 34 additions and 7 deletions
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8
include/qemu/qsp.h
View file

@ -13,7 +13,13 @@
#include "qemu/fprintf-fn.h" #include "qemu/fprintf-fn.h"
void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max); enum QSPSortBy {
QSP_SORT_BY_TOTAL_WAIT_TIME,
QSP_SORT_BY_AVG_WAIT_TIME,
};
void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max,
enum QSPSortBy sort_by);
bool qsp_is_enabled(void); bool qsp_is_enabled(void);
void qsp_enable(void); void qsp_enable(void);

33
util/qsp.c
View file

@ -429,14 +429,34 @@ static gint qsp_tree_cmp(gconstpointer ap, gconstpointer bp, gpointer up)
{ {
const QSPEntry *a = ap; const QSPEntry *a = ap;
const QSPEntry *b = bp; const QSPEntry *b = bp;
enum QSPSortBy sort_by = *(enum QSPSortBy *)up;
const QSPCallSite *ca; const QSPCallSite *ca;
const QSPCallSite *cb; const QSPCallSite *cb;
if (a->ns > b->ns) { switch (sort_by) {
return -1; case QSP_SORT_BY_TOTAL_WAIT_TIME:
} else if (a->ns < b->ns) { if (a->ns > b->ns) {
return 1; return -1;
} else if (a->ns < b->ns) {
return 1;
}
break;
case QSP_SORT_BY_AVG_WAIT_TIME:
{
double avg_a = a->n_acqs ? a->ns / a->n_acqs : 0;
double avg_b = b->n_acqs ? b->ns / b->n_acqs : 0;
if (avg_a > avg_b) {
return -1;
} else if (avg_a < avg_b) {
return 1;
}
break;
} }
default:
g_assert_not_reached();
}
ca = a->callsite; ca = a->callsite;
cb = b->callsite; cb = b->callsite;
/* Break the tie with the object's address */ /* Break the tie with the object's address */
@ -613,9 +633,10 @@ static void report_destroy(QSPReport *rep)
g_free(rep->entries); g_free(rep->entries);
} }
void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max) void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max,
enum QSPSortBy sort_by)
{ {
GTree *tree = g_tree_new_full(qsp_tree_cmp, NULL, g_free, NULL); GTree *tree = g_tree_new_full(qsp_tree_cmp, &sort_by, g_free, NULL);
QSPReport rep; QSPReport rep;
qsp_init(); qsp_init();