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authorChris Wilson <chris@chris-wilson.co.uk>2016-09-22 12:53:37 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2016-09-23 12:14:04 +0100
commit8f33f80100096f7790c7b819ce37a3ed8ce8b5fa (patch)
treec4a18c8493ef50f3636a6662d72001b419be945f /test
parent0ffae5601bdb00528395f0891a680e69df89a00a (diff)
test/present: Busy spin on the idle fence
Avoid the unix socket + libxcb to maximise the throughput. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'test')
-rw-r--r--test/present-speed.c135
1 files changed, 104 insertions, 31 deletions
diff --git a/test/present-speed.c b/test/present-speed.c
index 9ab7482a..eccde931 100644
--- a/test/present-speed.c
+++ b/test/present-speed.c
@@ -166,8 +166,8 @@ static void run(Display *dpy, Window win, const char *name, unsigned options)
xcb_xfixes_region_t update = 0;
int completed = 0;
int queued = 0;
- uint32_t eid;
- void *Q;
+ uint32_t eid = 0;
+ void *Q = NULL;
int i, n;
list_init(&mru);
@@ -215,23 +215,35 @@ static void run(Display *dpy, Window win, const char *name, unsigned options)
present_flags |= XCB_PRESENT_OPTION_COPY;
}
- eid = xcb_generate_id(c);
- xcb_present_select_input(c, eid, win,
- (options & NOCOPY ? 0 : XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY) |
- XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
- Q = xcb_register_for_special_xge(c, &xcb_present_id, eid, &stamp);
+ if (!(options & DRI3)) {
+ eid = xcb_generate_id(c);
+ xcb_present_select_input(c, eid, win,
+ (options & NOCOPY ? 0 : XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY) |
+ XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
+ Q = xcb_register_for_special_xge(c, &xcb_present_id, eid, &stamp);
+ }
clock_gettime(CLOCK_MONOTONIC, &start);
do {
for (n = 0; n < 1000; n++) {
struct buffer *tmp, *b = NULL;
+retry:
list_for_each_entry(tmp, &mru, link) {
+ if (tmp->fence.xid)
+ tmp->busy = !xshmfence_query(tmp->fence.addr);
if (!tmp->busy) {
b = tmp;
break;
}
}
- while (b == NULL) {
+ if (options & DRI3) {
+ if (b == NULL)
+ goto retry;
+
+ xshmfence_reset(b->fence.addr);
+ queued--;
+ completed++;
+ } else while (b == NULL) {
xcb_present_generic_event_t *ev;
ev = (xcb_present_generic_event_t *)
@@ -261,10 +273,6 @@ static void run(Display *dpy, Window win, const char *name, unsigned options)
}
b->busy = (options & NOCOPY) == 0;
- if (b->fence.xid) {
- xshmfence_await(b->fence.addr);
- xshmfence_reset(b->fence.addr);
- }
xcb_present_pixmap(c, win, b->pixmap, b->id,
0, /* valid */
update, /* update */
@@ -285,7 +293,33 @@ static void run(Display *dpy, Window win, const char *name, unsigned options)
clock_gettime(CLOCK_MONOTONIC, &end);
} while (end.tv_sec < start.tv_sec + 10);
- while (queued) {
+ if (options & DRI3) {
+ struct buffer *b;
+ XID pixmap;
+
+ pixmap = xcb_generate_id(c);
+ xcb_create_pixmap(c, depth, pixmap, win, width, height);
+ xcb_present_pixmap(c, win, pixmap, 0xdeadbeef,
+ 0, /* valid */
+ None, /* update */
+ 0, /* x_off */
+ 0, /* y_off */
+ None,
+ None, /* wait fence */
+ None,
+ 0,
+ 0, /* target msc */
+ 0, /* divisor */
+ 0, /* remainder */
+ 0, NULL);
+ xcb_flush(c);
+
+ list_for_each_entry(b, &mru, link)
+ xshmfence_await(b->fence.addr);
+
+ xcb_free_pixmap(c, pixmap);
+ completed += queued;
+ } else while (queued) {
xcb_present_generic_event_t *ev;
ev = (xcb_present_generic_event_t *)
@@ -318,9 +352,11 @@ static void run(Display *dpy, Window win, const char *name, unsigned options)
xcb_free_pixmap(c, buffer[n].pixmap);
}
- xcb_discard_reply(c, xcb_present_select_input_checked(c, eid, win, 0).sequence);
- XSync(dpy, True);
- xcb_unregister_for_special_event(c, Q);
+ if (Q) {
+ xcb_discard_reply(c, xcb_present_select_input_checked(c, eid, win, 0).sequence);
+ XSync(dpy, True);
+ xcb_unregister_for_special_event(c, Q);
+ }
test_name[0] = '\0';
if (options) {
@@ -359,7 +395,7 @@ static void perpixel(Display *dpy,
int completed = 0;
int i, n;
- pp = malloc(sz*sizeof(*pp));
+ pp = calloc(sz, sizeof(*pp));
if (!pp)
return;
@@ -404,11 +440,13 @@ static void perpixel(Display *dpy,
list_add(&pp[i].buffer[n].link, &pp[i].mru);
}
- pp[i].eid = xcb_generate_id(c);
- xcb_present_select_input(c, pp[i].eid, pp[i].win,
- (options & NOCOPY ? 0 : XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY) |
- XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
- pp[i].Q = xcb_register_for_special_xge(c, &xcb_present_id, pp[i].eid, &stamp);
+ if (!(options & DRI3)) {
+ pp[i].eid = xcb_generate_id(c);
+ xcb_present_select_input(c, pp[i].eid, pp[i].win,
+ (options & NOCOPY ? 0 : XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY) |
+ XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
+ pp[i].Q = xcb_register_for_special_xge(c, &xcb_present_id, pp[i].eid, &stamp);
+ }
pp[i].queued = 0;
}
@@ -427,13 +465,23 @@ static void perpixel(Display *dpy,
do {
for (i = 0; i < sz; i++) {
struct buffer *tmp, *b = NULL;
+retry:
list_for_each_entry(tmp, &pp[i].mru, link) {
+ if (tmp->fence.xid)
+ tmp->busy = !xshmfence_query(tmp->fence.addr);
if (!tmp->busy) {
b = tmp;
break;
}
}
- while (b == NULL) {
+ if (options & DRI3) {
+ if (b == NULL)
+ goto retry;
+
+ xshmfence_reset(b->fence.addr);
+ pp[i].queued--;
+ completed++;
+ } else while (b == NULL) {
xcb_present_generic_event_t *ev;
ev = (xcb_present_generic_event_t *)
@@ -463,10 +511,6 @@ static void perpixel(Display *dpy,
}
b->busy = (options & NOCOPY) == 0;
- if (b->fence.xid) {
- xshmfence_await(b->fence.addr);
- xshmfence_reset(b->fence.addr);
- }
xcb_present_pixmap(c, pp[i].win, b->pixmap, b->id,
0, /* valid */
update, /* update */
@@ -488,7 +532,34 @@ static void perpixel(Display *dpy,
} while (end.tv_sec < start.tv_sec + 10);
for (i = 0; i < sz; i++) {
- while (pp[i].queued) {
+ if (options & DRI3) {
+ int depth = DefaultDepth(dpy, DefaultScreen(dpy));
+ struct buffer *b;
+ XID pixmap;
+
+ pixmap = xcb_generate_id(c);
+ xcb_create_pixmap(c, depth, pixmap, pp[i].win, 1, 1);
+ xcb_present_pixmap(c, pp[i].win, pixmap, 0xdeadbeef,
+ 0, /* valid */
+ None, /* update */
+ 0, /* x_off */
+ 0, /* y_off */
+ None,
+ None, /* wait fence */
+ None,
+ 0,
+ 0, /* target msc */
+ 0, /* divisor */
+ 0, /* remainder */
+ 0, NULL);
+ xcb_flush(c);
+
+ list_for_each_entry(b, &pp[i].mru, link)
+ xshmfence_await(b->fence.addr);
+
+ xcb_free_pixmap(c, pixmap);
+ completed += pp[i].queued;
+ } else while (pp[i].queued) {
xcb_present_generic_event_t *ev;
ev = (xcb_present_generic_event_t *)
@@ -524,9 +595,11 @@ static void perpixel(Display *dpy,
xcb_free_pixmap(c, pp[i].buffer[n].pixmap);
}
- xcb_discard_reply(c, xcb_present_select_input_checked(c, pp[i].eid, pp[i].win, 0).sequence);
- XSync(dpy, True);
- xcb_unregister_for_special_event(c, pp[i].Q);
+ if (pp[i].Q) {
+ xcb_discard_reply(c, xcb_present_select_input_checked(c, pp[i].eid, pp[i].win, 0).sequence);
+ XSync(dpy, True);
+ xcb_unregister_for_special_event(c, pp[i].Q);
+ }
XDestroyWindow(dpy, pp[i].win);
}